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annotate src/render/software/SDL_blendfillrect.c @ 5221:16d5e8e90e01

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Updated testoverlay2 to use the SDL 2D rendering API
author Sam Lantinga <slouken@libsdl.org>
date Mon, 07 Feb 2011 00:46:43 -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:
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1 /*
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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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.
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4
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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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.
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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>
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7 License as published by the Free Software Foundation; either
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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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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9
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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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.
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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.
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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.
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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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14
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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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.
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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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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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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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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"
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25 #include "SDL_blendfillrect.h"
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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
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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) {
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35 case SDL_BLENDMODE_BLEND:
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36 FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB555);
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37 break;
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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);
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40 break;
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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
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44 default:
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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;
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47 }
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48 return 0;
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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
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52 SDL_BlendFillRect_RGB565(SDL_Surface * dst, const SDL_Rect * rect,
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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.
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54 {
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55 unsigned inva = 0xff - a;
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56
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57 switch (blendMode) {
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58 case SDL_BLENDMODE_BLEND:
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59 FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB565);
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60 break;
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61 case SDL_BLENDMODE_ADD:
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62 FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB565);
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63 break;
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64 case SDL_BLENDMODE_MOD:
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65 FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB565);
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66 break;
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67 default:
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68 FILLRECT(Uint16, DRAW_SETPIXEL_RGB565);
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69 break;
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70 }
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71 return 0;
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72 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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73
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74 static int
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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;
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79
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80 switch (blendMode) {
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81 case SDL_BLENDMODE_BLEND:
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82 FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGB888);
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83 break;
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84 case SDL_BLENDMODE_ADD:
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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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86 break;
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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);
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89 break;
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90 default:
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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;
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93 }
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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
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97 static int
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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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99 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
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100 {
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101 unsigned inva = 0xff - a;
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102
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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103 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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104 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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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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106 break;
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107 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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108 FILLRECT(Uint32, DRAW_SETPIXEL_ADD_ARGB8888);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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109 break;
5187
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110 case SDL_BLENDMODE_MOD:
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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111 FILLRECT(Uint32, DRAW_SETPIXEL_MOD_ARGB8888);
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME
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112 break;
5166
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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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115 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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116 }
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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117 return 0;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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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
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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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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.
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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;
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125 unsigned inva = 0xff - a;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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126
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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127 switch (fmt->BytesPerPixel) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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128 case 2:
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129 switch (blendMode) {
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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130 case SDL_BLENDMODE_BLEND:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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131 FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB);
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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132 break;
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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133 case SDL_BLENDMODE_ADD:
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer.
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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: */