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annotate src/render/software/SDL_blendline.c @ 5236:e82908c86c9c

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Made the shaders easier to debug when they don't compile
author Sam Lantinga <slouken@libsdl.org>
date Tue, 08 Feb 2011 20:31:39 -0800
parents 710d00cb3a6a
children b530ef003506
rev   line source
2888
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
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2 SDL - Simple DirectMedia Layer
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
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3 Copyright (C) 1997-2010 Sam Lantinga
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32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
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4
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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5 This library is free software; you can redistribute it and/or
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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6 modify it under the terms of the GNU Lesser General Public
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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diff changeset
7 License as published by the Free Software Foundation; either
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
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diff changeset
9
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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10 This library is distributed in the hope that it will be useful,
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13 Lesser General Public License for more details.
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
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14
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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diff changeset
15 You should have received a copy of the GNU Lesser General Public
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free Software
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
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18
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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19 Sam Lantinga
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
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21 */
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
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22 #include "SDL_config.h"
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
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23
5231
710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render
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24 #if !SDL_RENDER_DISABLED
710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render
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25
2898
e40448bc7727 Share code between fill and line drawing
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26 #include "SDL_draw.h"
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d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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27 #include "SDL_blendline.h"
5169
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface.
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28 #include "SDL_blendpoint.h"
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e40448bc7727 Share code between fill and line drawing
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29
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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30
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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31 static void
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
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32 SDL_BlendLine_RGB2(SDL_Surface * dst, int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
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33 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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34 SDL_bool draw_end)
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e40448bc7727 Share code between fill and line drawing
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35 {
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f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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36 const SDL_PixelFormat *fmt = dst->format;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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37 unsigned r, g, b, a, inva;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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38
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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39 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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40 r = DRAW_MUL(_r, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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41 g = DRAW_MUL(_g, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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42 b = DRAW_MUL(_b, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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43 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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44 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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45 r = _r;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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46 g = _g;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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47 b = _b;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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48 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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49 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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50 inva = (a ^ 0xff);
2888
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51
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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52 if (y1 == y2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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53 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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54 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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55 HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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56 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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57 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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58 HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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59 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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60 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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61 HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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62 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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63 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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64 HLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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65 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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66 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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67 } else if (x1 == x2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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68 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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69 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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70 VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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71 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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72 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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73 VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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74 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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75 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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76 VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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parents: 5169
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77 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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78 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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79 VLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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80 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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81 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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82 } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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83 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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84 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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85 DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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86 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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87 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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88 DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
diff changeset
89 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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parents: 5169
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90 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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91 DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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parents: 5169
diff changeset
92 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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93 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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94 DLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
95 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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96 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
97 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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98 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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99 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
diff changeset
100 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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101 DRAW_SETPIXELXY2_BLEND_RGB, DRAW_SETPIXELXY2_BLEND_RGB,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
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102 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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103 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
104 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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105 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
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106 DRAW_SETPIXELXY2_ADD_RGB, DRAW_SETPIXELXY2_ADD_RGB,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
diff changeset
107 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
108 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
109 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
110 AALINE(x1, y1, x2, y2,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
111 DRAW_SETPIXELXY2_MOD_RGB, DRAW_SETPIXELXY2_MOD_RGB,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
112 draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
113 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
114 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
diff changeset
115 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
diff changeset
116 DRAW_SETPIXELXY2_RGB, DRAW_SETPIXELXY2_BLEND_RGB,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
diff changeset
117 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
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118 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
119 }
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
120 }
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
121 }
2896
1ef2f1e75ff7 Date: Sat, 20 Dec 2008 23:25:19 +0100
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parents: 2888
diff changeset
122
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
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parents: 3594
diff changeset
123 static void
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
124 SDL_BlendLine_RGB555(SDL_Surface * dst, int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
125 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
3594
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
126 SDL_bool draw_end)
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
127 {
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
128 const SDL_PixelFormat *fmt = dst->format;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
129 unsigned r, g, b, a, inva;
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
130
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
131 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
132 r = DRAW_MUL(_r, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
133 g = DRAW_MUL(_g, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
134 b = DRAW_MUL(_b, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
135 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
136 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
137 r = _r;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
138 g = _g;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
139 b = _b;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
140 a = _a;
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
141 }
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
142 inva = (a ^ 0xff);
2896
1ef2f1e75ff7 Date: Sat, 20 Dec 2008 23:25:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2888
diff changeset
143
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
144 if (y1 == y2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
145 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
146 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
147 HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
148 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
149 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
150 HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
151 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
152 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
153 HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
154 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
155 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
156 HLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
157 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
158 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
159 } else if (x1 == x2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
160 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
161 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
162 VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
163 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
164 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
165 VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
166 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
167 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
168 VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
169 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
170 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
171 VLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
172 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
173 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
174 } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
175 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
176 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
177 DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
178 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
179 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
180 DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
181 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
182 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
183 DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
184 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
185 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
186 DLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
187 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
188 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
189 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
190 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
191 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
192 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
193 DRAW_SETPIXELXY_BLEND_RGB555, DRAW_SETPIXELXY_BLEND_RGB555,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
194 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
195 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
196 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
197 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
198 DRAW_SETPIXELXY_ADD_RGB555, DRAW_SETPIXELXY_ADD_RGB555,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
199 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
200 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
201 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
202 AALINE(x1, y1, x2, y2,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
203 DRAW_SETPIXELXY_MOD_RGB555, DRAW_SETPIXELXY_MOD_RGB555,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
204 draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
205 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
206 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
207 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
208 DRAW_SETPIXELXY_RGB555, DRAW_SETPIXELXY_BLEND_RGB555,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
209 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
210 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
211 }
2899
a0c837a16e4c Added ARGB optimized case for Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents: 2898
diff changeset
212 }
a0c837a16e4c Added ARGB optimized case for Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents: 2898
diff changeset
213 }
a0c837a16e4c Added ARGB optimized case for Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents: 2898
diff changeset
214
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
215 static void
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
216 SDL_BlendLine_RGB565(SDL_Surface * dst, int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
217 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
218 SDL_bool draw_end)
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
219 {
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
220 const SDL_PixelFormat *fmt = dst->format;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
221 unsigned r, g, b, a, inva;
2896
1ef2f1e75ff7 Date: Sat, 20 Dec 2008 23:25:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2888
diff changeset
222
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
223 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
224 r = DRAW_MUL(_r, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
225 g = DRAW_MUL(_g, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
226 b = DRAW_MUL(_b, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
227 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
228 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
229 r = _r;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
230 g = _g;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
231 b = _b;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
232 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
233 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
234 inva = (a ^ 0xff);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
235
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
236 if (y1 == y2) {
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
237 switch (blendMode) {
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
238 case SDL_BLENDMODE_BLEND:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
239 HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
240 break;
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
241 case SDL_BLENDMODE_ADD:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
242 HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
243 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
244 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
245 HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
246 break;
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
247 default:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
248 HLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
249 break;
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
250 }
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
251 } else if (x1 == x2) {
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
252 switch (blendMode) {
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
253 case SDL_BLENDMODE_BLEND:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
254 VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
255 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
256 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
257 VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
258 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
259 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
260 VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
261 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
262 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
263 VLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
264 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
265 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
266 } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
267 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
268 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
269 DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
270 break;
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
271 case SDL_BLENDMODE_ADD:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
272 DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
273 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
274 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
275 DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
276 break;
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
277 default:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
278 DLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
279 break;
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
280 }
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
281 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
282 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
283 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
284 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
285 DRAW_SETPIXELXY_BLEND_RGB565, DRAW_SETPIXELXY_BLEND_RGB565,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
286 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
287 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
288 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
289 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
290 DRAW_SETPIXELXY_ADD_RGB565, DRAW_SETPIXELXY_ADD_RGB565,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
291 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
292 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
293 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
294 AALINE(x1, y1, x2, y2,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
295 DRAW_SETPIXELXY_MOD_RGB565, DRAW_SETPIXELXY_MOD_RGB565,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
296 draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
297 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
298 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
299 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
300 DRAW_SETPIXELXY_RGB565, DRAW_SETPIXELXY_BLEND_RGB565,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
301 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
302 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
303 }
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
304 }
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
305 }
2896
1ef2f1e75ff7 Date: Sat, 20 Dec 2008 23:25:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2888
diff changeset
306
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
307 static void
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
308 SDL_BlendLine_RGB4(SDL_Surface * dst, int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
309 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
3594
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
310 SDL_bool draw_end)
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
311 {
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
312 const SDL_PixelFormat *fmt = dst->format;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
313 unsigned r, g, b, a, inva;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
314
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
315 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
316 r = DRAW_MUL(_r, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
317 g = DRAW_MUL(_g, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
318 b = DRAW_MUL(_b, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
319 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
320 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
321 r = _r;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
322 g = _g;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
323 b = _b;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
324 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
325 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
326 inva = (a ^ 0xff);
2896
1ef2f1e75ff7 Date: Sat, 20 Dec 2008 23:25:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2888
diff changeset
327
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
328 if (y1 == y2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
329 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
330 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
331 HLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
332 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
333 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
334 HLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
335 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
336 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
337 HLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
338 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
339 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
340 HLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
341 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
342 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
343 } else if (x1 == x2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
344 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
345 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
346 VLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
347 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
348 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
349 VLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
350 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
351 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
352 VLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
353 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
354 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
355 VLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
356 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
357 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
358 } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
359 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
360 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
361 DLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
362 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
363 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
364 DLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
365 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
366 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
367 DLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
368 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
369 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
370 DLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
371 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
372 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
373 } else {
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
374 switch (blendMode) {
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
375 case SDL_BLENDMODE_BLEND:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
376 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
377 DRAW_SETPIXELXY4_BLEND_RGB, DRAW_SETPIXELXY4_BLEND_RGB,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
378 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
379 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
380 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
381 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
382 DRAW_SETPIXELXY4_ADD_RGB, DRAW_SETPIXELXY4_ADD_RGB,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
383 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
384 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
385 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
386 AALINE(x1, y1, x2, y2,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
387 DRAW_SETPIXELXY4_MOD_RGB, DRAW_SETPIXELXY4_MOD_RGB,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
388 draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
389 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
390 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
391 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
392 DRAW_SETPIXELXY4_RGB, DRAW_SETPIXELXY4_BLEND_RGB,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
393 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
394 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
395 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
396 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
397 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
398
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
399 static void
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
400 SDL_BlendLine_RGBA4(SDL_Surface * dst, int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
401 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
402 SDL_bool draw_end)
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
403 {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
404 const SDL_PixelFormat *fmt = dst->format;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
405 unsigned r, g, b, a, inva;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
406
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
407 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
408 r = DRAW_MUL(_r, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
409 g = DRAW_MUL(_g, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
410 b = DRAW_MUL(_b, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
411 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
412 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
413 r = _r;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
414 g = _g;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
415 b = _b;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
416 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
417 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
418 inva = (a ^ 0xff);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
419
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
420 if (y1 == y2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
421 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
422 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
423 HLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
424 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
425 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
426 HLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
427 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
428 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
429 HLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
430 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
431 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
432 HLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
433 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
434 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
435 } else if (x1 == x2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
436 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
437 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
438 VLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
439 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
440 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
441 VLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
442 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
443 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
444 VLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
445 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
446 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
447 VLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
448 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
449 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
450 } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
451 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
452 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
453 DLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
454 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
455 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
456 DLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
457 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
458 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
459 DLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
460 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
461 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
462 DLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
463 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
464 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
465 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
466 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
467 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
468 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
469 DRAW_SETPIXELXY4_BLEND_RGBA, DRAW_SETPIXELXY4_BLEND_RGBA,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
470 draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
471 break;
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
472 case SDL_BLENDMODE_ADD:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
473 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
474 DRAW_SETPIXELXY4_ADD_RGBA, DRAW_SETPIXELXY4_ADD_RGBA,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
475 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
476 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
477 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
478 AALINE(x1, y1, x2, y2,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
479 DRAW_SETPIXELXY4_MOD_RGBA, DRAW_SETPIXELXY4_MOD_RGBA,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
480 draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
481 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
482 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
483 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
484 DRAW_SETPIXELXY4_RGBA, DRAW_SETPIXELXY4_BLEND_RGBA,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
485 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
486 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
487 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
488 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
489 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
490
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
491 static void
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
492 SDL_BlendLine_RGB888(SDL_Surface * dst, int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
493 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
494 SDL_bool draw_end)
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
495 {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
496 const SDL_PixelFormat *fmt = dst->format;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
497 unsigned r, g, b, a, inva;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
498
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
499 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
500 r = DRAW_MUL(_r, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
501 g = DRAW_MUL(_g, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
502 b = DRAW_MUL(_b, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
503 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
504 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
505 r = _r;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
506 g = _g;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
507 b = _b;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
508 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
509 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
510 inva = (a ^ 0xff);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
511
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
512 if (y1 == y2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
513 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
514 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
515 HLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
516 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
517 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
518 HLINE(Uint32, DRAW_SETPIXEL_ADD_RGB888, draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
519 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
520 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
521 HLINE(Uint32, DRAW_SETPIXEL_MOD_RGB888, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
522 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
523 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
524 HLINE(Uint32, DRAW_SETPIXEL_RGB888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
525 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
526 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
527 } else if (x1 == x2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
528 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
529 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
530 VLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
531 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
532 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
533 VLINE(Uint32, DRAW_SETPIXEL_ADD_RGB888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
534 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
535 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
536 VLINE(Uint32, DRAW_SETPIXEL_MOD_RGB888, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
537 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
538 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
539 VLINE(Uint32, DRAW_SETPIXEL_RGB888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
540 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
541 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
542 } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
543 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
544 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
545 DLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
546 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
547 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
548 DLINE(Uint32, DRAW_SETPIXEL_ADD_RGB888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
549 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
550 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
551 DLINE(Uint32, DRAW_SETPIXEL_MOD_RGB888, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
552 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
553 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
554 DLINE(Uint32, DRAW_SETPIXEL_RGB888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
555 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
556 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
557 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
558 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
559 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
560 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
561 DRAW_SETPIXELXY_BLEND_RGB888, DRAW_SETPIXELXY_BLEND_RGB888,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
562 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
563 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
564 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
565 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
566 DRAW_SETPIXELXY_ADD_RGB888, DRAW_SETPIXELXY_ADD_RGB888,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
567 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
568 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
569 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
570 AALINE(x1, y1, x2, y2,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
571 DRAW_SETPIXELXY_MOD_RGB888, DRAW_SETPIXELXY_MOD_RGB888,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
572 draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
573 break;
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
574 default:
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
575 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
576 DRAW_SETPIXELXY_RGB888, DRAW_SETPIXELXY_BLEND_RGB888,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
577 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
578 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
579 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
580 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
581 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
582
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
583 static void
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
584 SDL_BlendLine_ARGB8888(SDL_Surface * dst, int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
585 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
586 SDL_bool draw_end)
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
587 {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
588 const SDL_PixelFormat *fmt = dst->format;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
589 unsigned r, g, b, a, inva;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
590
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
591 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
592 r = DRAW_MUL(_r, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
593 g = DRAW_MUL(_g, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
594 b = DRAW_MUL(_b, _a);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
595 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
596 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
597 r = _r;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
598 g = _g;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
599 b = _b;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
600 a = _a;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
601 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
602 inva = (a ^ 0xff);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
603
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
604 if (y1 == y2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
605 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
606 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
607 HLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
608 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
609 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
610 HLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
611 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
612 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
613 HLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
614 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
615 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
616 HLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
617 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
618 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
619 } else if (x1 == x2) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
620 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
621 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
622 VLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
623 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
624 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
625 VLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
626 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
627 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
628 VLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
629 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
630 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
631 VLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
632 break;
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
633 }
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
634 } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
635 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
636 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
637 DLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
638 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
639 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
640 DLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
641 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
642 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
643 DLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
644 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
645 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
646 DLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
647 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
648 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
649 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
650 switch (blendMode) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
651 case SDL_BLENDMODE_BLEND:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
652 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
653 DRAW_SETPIXELXY_BLEND_ARGB8888, DRAW_SETPIXELXY_BLEND_ARGB8888,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
654 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
655 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
656 case SDL_BLENDMODE_ADD:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
657 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
658 DRAW_SETPIXELXY_ADD_ARGB8888, DRAW_SETPIXELXY_ADD_ARGB8888,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
659 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
660 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
661 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
662 AALINE(x1, y1, x2, y2,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
663 DRAW_SETPIXELXY_MOD_ARGB8888, DRAW_SETPIXELXY_MOD_ARGB8888,
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
664 draw_end);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5169
diff changeset
665 break;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
666 default:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
667 AALINE(x1, y1, x2, y2,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
668 DRAW_SETPIXELXY_ARGB8888, DRAW_SETPIXELXY_BLEND_ARGB8888,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
669 draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
670 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
671 }
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
672 }
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
673 }
2888
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
674
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
675 typedef void (*BlendLineFunc) (SDL_Surface * dst,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
676 int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
677 SDL_BlendMode blendMode,
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
678 Uint8 r, Uint8 g, Uint8 b, Uint8 a,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
679 SDL_bool draw_end);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
680
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
681 static BlendLineFunc
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
682 SDL_CalculateBlendLineFunc(const SDL_PixelFormat * fmt)
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
683 {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
684 switch (fmt->BytesPerPixel) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
685 case 2:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
686 if (fmt->Rmask == 0x7C00) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
687 return SDL_BlendLine_RGB555;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
688 } else if (fmt->Rmask == 0xF800) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
689 return SDL_BlendLine_RGB565;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
690 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
691 return SDL_BlendLine_RGB2;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
692 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
693 break;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
694 case 4:
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
695 if (fmt->Rmask == 0x00FF0000) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
696 if (fmt->Amask) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
697 return SDL_BlendLine_ARGB8888;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
698 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
699 return SDL_BlendLine_RGB888;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
700 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
701 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
702 if (fmt->Amask) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
703 return SDL_BlendLine_RGBA4;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
704 } else {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
705 return SDL_BlendLine_RGB4;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
706 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
707 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
708 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
709 return NULL;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
710 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
711
2888
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
712 int
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
713 SDL_BlendLine(SDL_Surface * dst, int x1, int y1, int x2, int y2,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
714 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
2888
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
715 {
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
716 BlendLineFunc func;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
717
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
718 if (!dst) {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
719 SDL_SetError("SDL_BlendLine(): Passed NULL destination surface");
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
720 return -1;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
721 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
722
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
723 func = SDL_CalculateBlendLineFunc(dst->format);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
724 if (!func) {
2888
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
725 SDL_SetError("SDL_BlendLine(): Unsupported surface format");
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
726 return -1;
2888
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
727 }
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
728
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
729 /* Perform clipping */
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
730 /* FIXME: We don't actually want to clip, as it may change line slope */
2910
27d8b12e0e8e Fixed argument order to the line clipping routine
Sam Lantinga <slouken@libsdl.org>
parents: 2909
diff changeset
731 if (!SDL_IntersectRectAndLine(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
732 return 0;
2896
1ef2f1e75ff7 Date: Sat, 20 Dec 2008 23:25:19 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2888
diff changeset
733 }
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2896
diff changeset
734
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
735 func(dst, x1, y1, x2, y2, blendMode, r, g, b, a, SDL_TRUE);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
736 return 0;
2888
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
737 }
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
738
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
739 int
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
740 SDL_BlendLines(SDL_Surface * dst, const SDL_Point * points, int count,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
741 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
742 {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
743 int i;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
744 int x1, y1;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
745 int x2, y2;
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
746 SDL_bool draw_end;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
747 BlendLineFunc func;
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
748
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
749 if (!dst) {
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
750 SDL_SetError("SDL_BlendLines(): Passed NULL destination surface");
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
751 return -1;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
752 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
753
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
754 func = SDL_CalculateBlendLineFunc(dst->format);
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
755 if (!func) {
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
756 SDL_SetError("SDL_BlendLines(): Unsupported surface format");
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
757 return -1;
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
758 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
759
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
760 for (i = 1; i < count; ++i) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
761 x1 = points[i-1].x;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
762 y1 = points[i-1].y;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
763 x2 = points[i].x;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
764 y2 = points[i].y;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
765
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
766 /* Perform clipping */
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
767 /* FIXME: We don't actually want to clip, as it may change line slope */
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
768 if (!SDL_IntersectRectAndLine(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
769 continue;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
770 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
771
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
772 /* Draw the end if it was clipped */
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
773 draw_end = (x2 != points[i].x || y2 != points[i].y);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
774
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
775 func(dst, x1, y1, x2, y2, blendMode, r, g, b, a, draw_end);
3594
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
776 }
c8bed77b0386 Added SDL_DrawRect(), SDL_DrawRects(), SDL_BlendRect() and SDL_BlendRects()
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
777 if (points[0].x != points[count-1].x || points[0].y != points[count-1].y) {
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
778 SDL_BlendPoint(dst, points[count-1].x, points[count-1].y,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
779 blendMode, r, g, b, a);
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
780 }
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3594
diff changeset
781 return 0;
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
782 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2910
diff changeset
783
5231
710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render
Sam Lantinga <slouken@libsdl.org>
parents: 5187
diff changeset
784 #endif /* !SDL_RENDER_DISABLED */
710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render
Sam Lantinga <slouken@libsdl.org>
parents: 5187
diff changeset
785
2888
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
786 /* vi: set ts=4 sw=4 expandtab: */