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annotate src/render/software/SDL_blendfillrect.c @ 5217:b0797947dd1c

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You don't need to copy the pixels into the streaming texture's pixel data. This behavior is defined specifically to optimize the UpdateTexture path.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 06 Feb 2011 20:56:21 -0800
parents d976b67150c5
children 710d00cb3a6a
rev   line source
5166
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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3 Copyright (C) 1997-2010 Sam Lantinga
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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4
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
9
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
10 This library is distributed in the hope that it will be useful,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13 Lesser General Public License for more details.
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
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14
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
15 You should have received a copy of the GNU Lesser General Public
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
16 License along with this library; if not, write to the Free Software
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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18
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
19 Sam Lantinga
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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21 */
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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22 #include "SDL_config.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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23
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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24 #include "SDL_draw.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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25 #include "SDL_blendfillrect.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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26
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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27
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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28 static int
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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29 SDL_BlendFillRect_RGB555(SDL_Surface * dst, const SDL_Rect * rect,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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30 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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31 {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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32 unsigned inva = 0xff - a;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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33
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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34 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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35 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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36 FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB555);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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37 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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38 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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39 FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB555);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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40 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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parents: 5166
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41 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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42 FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB555);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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43 break;
5166
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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44 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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45 FILLRECT(Uint16, DRAW_SETPIXEL_RGB555);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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46 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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47 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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48 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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49 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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50
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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51 static int
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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52 SDL_BlendFillRect_RGB565(SDL_Surface * dst, const SDL_Rect * rect,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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53 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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54 {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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55 unsigned inva = 0xff - a;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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56
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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57 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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58 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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59 FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB565);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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60 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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61 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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62 FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB565);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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63 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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64 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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65 FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB565);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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parents: 5166
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66 break;
5166
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67 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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68 FILLRECT(Uint16, DRAW_SETPIXEL_RGB565);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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69 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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70 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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71 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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72 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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73
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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74 static int
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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75 SDL_BlendFillRect_RGB888(SDL_Surface * dst, const SDL_Rect * rect,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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76 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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77 {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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78 unsigned inva = 0xff - a;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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79
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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80 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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81 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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82 FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGB888);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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83 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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84 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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85 FILLRECT(Uint32, DRAW_SETPIXEL_ADD_RGB888);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
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86 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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parents: 5166
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87 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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88 FILLRECT(Uint32, DRAW_SETPIXEL_MOD_RGB888);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
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89 break;
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90 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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91 FILLRECT(Uint32, DRAW_SETPIXEL_RGB888);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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92 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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93 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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94 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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95 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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96
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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97 static int
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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98 SDL_BlendFillRect_ARGB8888(SDL_Surface * dst, const SDL_Rect * rect,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
99 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
100 {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
diff changeset
101 unsigned inva = 0xff - a;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
102
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
103 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
104 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
105 FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
diff changeset
106 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
diff changeset
107 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
108 FILLRECT(Uint32, DRAW_SETPIXEL_ADD_ARGB8888);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
109 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
110 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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parents: 5166
diff changeset
111 FILLRECT(Uint32, DRAW_SETPIXEL_MOD_ARGB8888);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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parents: 5166
diff changeset
112 break;
5166
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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113 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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114 FILLRECT(Uint32, DRAW_SETPIXEL_ARGB8888);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
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115 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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116 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
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117 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
118 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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119
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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120 static int
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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121 SDL_BlendFillRect_RGB(SDL_Surface * dst, const SDL_Rect * rect,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
diff changeset
122 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
123 {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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124 SDL_PixelFormat *fmt = dst->format;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
diff changeset
125 unsigned inva = 0xff - a;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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diff changeset
126
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
diff changeset
127 switch (fmt->BytesPerPixel) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
diff changeset
128 case 2:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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parents:
diff changeset
129 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
130 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
131 FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
132 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
133 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
134 FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
135 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
136 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
137 FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
138 break;
5166
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
139 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140 FILLRECT(Uint16, DRAW_SETPIXEL_RGB);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144 case 4:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
145 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147 FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGB);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
150 FILLRECT(Uint32, DRAW_SETPIXEL_ADD_RGB);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
151 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
152 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
153 FILLRECT(Uint32, DRAW_SETPIXEL_MOD_RGB);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
154 break;
5166
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
156 FILLRECT(Uint32, DRAW_SETPIXEL_RGB);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 SDL_Unsupported();
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 return -1;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
165
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
166 static int
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167 SDL_BlendFillRect_RGBA(SDL_Surface * dst, const SDL_Rect * rect,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169 {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
170 SDL_PixelFormat *fmt = dst->format;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
171 unsigned inva = 0xff - a;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
173 switch (fmt->BytesPerPixel) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
174 case 4:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
175 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
177 FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGBA);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
178 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
179 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
180 FILLRECT(Uint32, DRAW_SETPIXEL_ADD_RGBA);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181 break;
5187
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
182 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
183 FILLRECT(Uint32, DRAW_SETPIXEL_MOD_RGBA);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
Sam Lantinga <slouken@libsdl.org>
parents: 5166
diff changeset
184 break;
5166
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
185 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186 FILLRECT(Uint32, DRAW_SETPIXEL_RGBA);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
190 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191 SDL_Unsupported();
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192 return -1;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
193 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
194 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
195
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
196 int
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
197 SDL_BlendFillRect(SDL_Surface * dst, const SDL_Rect * rect,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
198 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
199 {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
200 SDL_Rect clipped;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
202 if (!dst) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203 SDL_SetError("Passed NULL destination surface");
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
204 return -1;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
205 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
206
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 /* This function doesn't work on surfaces < 8 bpp */
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
208 if (dst->format->BitsPerPixel < 8) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
209 SDL_SetError("SDL_BlendFillRect(): Unsupported surface format");
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
210 return -1;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
213 /* If 'rect' == NULL, then fill the whole surface */
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
214 if (rect) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215 /* Perform clipping */
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
216 if (!SDL_IntersectRect(rect, &dst->clip_rect, &clipped)) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
217 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
218 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 rect = &clipped;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220 } else {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221 rect = &dst->clip_rect;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
222 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
223
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
224 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 r = DRAW_MUL(r, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226 g = DRAW_MUL(g, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
227 b = DRAW_MUL(b, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
229
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
230 switch (dst->format->BitsPerPixel) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231 case 15:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 switch (dst->format->Rmask) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 case 0x7C00:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 return SDL_BlendFillRect_RGB555(dst, rect, blendMode, r, g, b, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
237 case 16:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
238 switch (dst->format->Rmask) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 case 0xF800:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 return SDL_BlendFillRect_RGB565(dst, rect, blendMode, r, g, b, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 case 32:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 switch (dst->format->Rmask) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 case 0x00FF0000:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246 if (!dst->format->Amask) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 return SDL_BlendFillRect_RGB888(dst, rect, blendMode, r, g, b, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 } else {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 return SDL_BlendFillRect_ARGB8888(dst, rect, blendMode, r, g, b, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 default:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258 if (!dst->format->Amask) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259 return SDL_BlendFillRect_RGB(dst, rect, blendMode, r, g, b, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
260 } else {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
261 return SDL_BlendFillRect_RGBA(dst, rect, blendMode, r, g, b, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 int
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266 SDL_BlendFillRects(SDL_Surface * dst, const SDL_Rect ** rects, int count,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269 SDL_Rect clipped;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 int i;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
271 int (*func)(SDL_Surface * dst, const SDL_Rect * rect,
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
272 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) = NULL;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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273 int status = 0;
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274
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275 if (!dst) {
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276 SDL_SetError("Passed NULL destination surface");
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277 return -1;
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278 }
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279
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280 /* This function doesn't work on surfaces < 8 bpp */
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281 if (dst->format->BitsPerPixel < 8) {
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282 SDL_SetError("SDL_BlendFillRects(): Unsupported surface format");
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283 return -1;
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284 }
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285
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286 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
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287 r = DRAW_MUL(r, a);
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288 g = DRAW_MUL(g, a);
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289 b = DRAW_MUL(b, a);
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290 }
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291
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292 /* FIXME: Does this function pointer slow things down significantly? */
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293 switch (dst->format->BitsPerPixel) {
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294 case 15:
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295 switch (dst->format->Rmask) {
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296 case 0x7C00:
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297 func = SDL_BlendFillRect_RGB555;
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298 }
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299 break;
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300 case 16:
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301 switch (dst->format->Rmask) {
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302 case 0xF800:
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303 func = SDL_BlendFillRect_RGB565;
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304 }
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305 break;
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306 case 32:
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307 switch (dst->format->Rmask) {
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308 case 0x00FF0000:
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309 if (!dst->format->Amask) {
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310 func = SDL_BlendFillRect_RGB888;
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311 } else {
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312 func = SDL_BlendFillRect_ARGB8888;
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313 }
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314 break;
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315 }
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316 break;
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317 default:
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318 break;
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319 }
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320
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321 if (!func) {
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322 if (!dst->format->Amask) {
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323 func = SDL_BlendFillRect_RGB;
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324 } else {
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325 func = SDL_BlendFillRect_RGBA;
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326 }
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327 }
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328
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329 for (i = 0; i < count; ++i) {
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330 const SDL_Rect * rect = rects[i];
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331
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332 /* If 'rect' == NULL, then fill the whole surface */
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333 if (rect) {
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334 /* Perform clipping */
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335 if (!SDL_IntersectRect(rect, &dst->clip_rect, &clipped)) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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336 continue;
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337 }
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338 rect = &clipped;
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339 } else {
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340 rect = &dst->clip_rect;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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341 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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342
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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343 status = func(dst, rect, blendMode, r, g, b, a);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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344 }
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345 return status;
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346 }
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347
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348 /* vi: set ts=4 sw=4 expandtab: */