annotate src/video/SDL_blendpoint.c @ 5142:57851a238c8f

Removed more partially functional renderers
author Sam Lantinga <slouken@libsdl.org>
date Mon, 31 Jan 2011 22:53:45 -0800
parents aa8888658021
children e743b9c3f6d6
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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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
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24 #include "SDL_draw.h"
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25
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26 static int
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27 SDL_BlendPoint_RGB555(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
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28 Uint8 g, Uint8 b, Uint8 a)
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29 {
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30 unsigned inva = 0xff - a;
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31
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32 switch (blendMode) {
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33 case SDL_BLENDMODE_BLEND:
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34 DRAW_SETPIXELXY_BLEND_RGB555(x, y);
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35 break;
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36 case SDL_BLENDMODE_ADD:
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37 DRAW_SETPIXELXY_ADD_RGB555(x, y);
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38 break;
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39 case SDL_BLENDMODE_MOD:
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40 DRAW_SETPIXELXY_MOD_RGB555(x, y);
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41 break;
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42 default:
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43 DRAW_SETPIXELXY_RGB555(x, y);
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44 break;
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45 }
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46 return 0;
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47 }
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48
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49 static int
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50 SDL_BlendPoint_RGB565(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
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51 Uint8 g, Uint8 b, Uint8 a)
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52 {
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53 unsigned inva = 0xff - a;
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54
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55 switch (blendMode) {
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56 case SDL_BLENDMODE_BLEND:
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57 DRAW_SETPIXELXY_BLEND_RGB565(x, y);
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58 break;
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59 case SDL_BLENDMODE_ADD:
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60 DRAW_SETPIXELXY_ADD_RGB565(x, y);
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61 break;
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62 case SDL_BLENDMODE_MOD:
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63 DRAW_SETPIXELXY_MOD_RGB565(x, y);
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64 break;
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65 default:
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66 DRAW_SETPIXELXY_RGB565(x, y);
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67 break;
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68 }
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69 return 0;
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70 }
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71
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72 static int
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73 SDL_BlendPoint_RGB888(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
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74 Uint8 g, Uint8 b, Uint8 a)
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75 {
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76 unsigned inva = 0xff - a;
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77
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78 switch (blendMode) {
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79 case SDL_BLENDMODE_BLEND:
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80 DRAW_SETPIXELXY_BLEND_RGB888(x, y);
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81 break;
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82 case SDL_BLENDMODE_ADD:
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83 DRAW_SETPIXELXY_ADD_RGB888(x, y);
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84 break;
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85 case SDL_BLENDMODE_MOD:
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86 DRAW_SETPIXELXY_MOD_RGB888(x, y);
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87 break;
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88 default:
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89 DRAW_SETPIXELXY_RGB888(x, y);
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90 break;
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91 }
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92 return 0;
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93 }
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94
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95 static int
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96 SDL_BlendPoint_ARGB8888(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode,
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97 Uint8 r, Uint8 g, Uint8 b, Uint8 a)
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98 {
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99 unsigned inva = 0xff - a;
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100
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101 switch (blendMode) {
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102 case SDL_BLENDMODE_BLEND:
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103 DRAW_SETPIXELXY_BLEND_ARGB8888(x, y);
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104 break;
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105 case SDL_BLENDMODE_ADD:
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106 DRAW_SETPIXELXY_ADD_ARGB8888(x, y);
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107 break;
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108 case SDL_BLENDMODE_MOD:
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109 DRAW_SETPIXELXY_MOD_ARGB8888(x, y);
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110 break;
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111 default:
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112 DRAW_SETPIXELXY_ARGB8888(x, y);
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113 break;
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114 }
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115 return 0;
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116 }
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117
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118 static int
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119 SDL_BlendPoint_RGB(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
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120 Uint8 g, Uint8 b, Uint8 a)
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121 {
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122 SDL_PixelFormat *fmt = dst->format;
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123 unsigned inva = 0xff - a;
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124
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125 switch (fmt->BytesPerPixel) {
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126 case 2:
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127 switch (blendMode) {
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128 case SDL_BLENDMODE_BLEND:
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129 DRAW_SETPIXELXY2_BLEND_RGB(x, y);
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130 break;
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131 case SDL_BLENDMODE_ADD:
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132 DRAW_SETPIXELXY2_ADD_RGB(x, y);
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133 break;
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134 case SDL_BLENDMODE_MOD:
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135 DRAW_SETPIXELXY2_MOD_RGB(x, y);
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136 break;
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137 default:
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138 DRAW_SETPIXELXY2_RGB(x, y);
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139 break;
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140 }
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141 return 0;
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142 case 4:
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143 switch (blendMode) {
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144 case SDL_BLENDMODE_BLEND:
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145 DRAW_SETPIXELXY4_BLEND_RGB(x, y);
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146 break;
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147 case SDL_BLENDMODE_ADD:
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148 DRAW_SETPIXELXY4_ADD_RGB(x, y);
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149 break;
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150 case SDL_BLENDMODE_MOD:
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151 DRAW_SETPIXELXY4_MOD_RGB(x, y);
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parents:
diff changeset
152 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
153 default:
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parents:
diff changeset
154 DRAW_SETPIXELXY4_RGB(x, y);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
156 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157 return 0;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 default:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 SDL_Unsupported();
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 return -1;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 static int
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parents: 3697
diff changeset
165 SDL_BlendPoint_RGBA(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
2901
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parents:
diff changeset
166 Uint8 g, Uint8 b, Uint8 a)
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167 {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168 SDL_PixelFormat *fmt = dst->format;
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169 unsigned inva = 0xff - a;
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parents:
diff changeset
170
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
171 switch (fmt->BytesPerPixel) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172 case 4:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
173 switch (blendMode) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
174 case SDL_BLENDMODE_BLEND:
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parents:
diff changeset
175 DRAW_SETPIXELXY4_BLEND_RGBA(x, y);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
177 case SDL_BLENDMODE_ADD:
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parents:
diff changeset
178 DRAW_SETPIXELXY4_ADD_RGBA(x, y);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
179 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
180 case SDL_BLENDMODE_MOD:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181 DRAW_SETPIXELXY4_MOD_RGBA(x, y);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
182 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
183 default:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184 DRAW_SETPIXELXY4_RGBA(x, y);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
185 break;
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 return 0;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188 default:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 SDL_Unsupported();
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
190 return -1;
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
193
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
194 int
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diff changeset
195 SDL_BlendPoint(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
2901
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
196 Uint8 g, Uint8 b, Uint8 a)
133601e3b255 Added RenderPiont() API
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parents:
diff changeset
197 {
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
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parents: 2901
diff changeset
198 if (!dst) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
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parents: 2901
diff changeset
199 SDL_SetError("Passed NULL destination surface");
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
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parents: 2901
diff changeset
200 return -1;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
201 }
2901
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
202
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203 /* This function doesn't work on surfaces < 8 bpp */
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
204 if (dst->format->BitsPerPixel < 8) {
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parents:
diff changeset
205 SDL_SetError("SDL_BlendPoint(): Unsupported surface format");
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
206 return -1;
2901
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
208
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
209 /* Perform clipping */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
210 if (x < dst->clip_rect.x || y < dst->clip_rect.y ||
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211 x >= (dst->clip_rect.x + dst->clip_rect.w) ||
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212 y >= (dst->clip_rect.y + dst->clip_rect.h)) {
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
213 return 0;
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
214 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
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parents: 2901
diff changeset
216 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
2901
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
217 r = DRAW_MUL(r, a);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
218 g = DRAW_MUL(g, a);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 b = DRAW_MUL(b, a);
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
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parents: 2901
diff changeset
222 switch (dst->format->BitsPerPixel) {
2901
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
223 case 15:
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
224 switch (dst->format->Rmask) {
2901
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 case 0x7C00:
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226 return SDL_BlendPoint_RGB555(dst, x, y, blendMode, r, g, b, a);
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
227 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228 break;
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
229 case 16:
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
230 switch (dst->format->Rmask) {
2901
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231 case 0xF800:
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 return SDL_BlendPoint_RGB565(dst, x, y, blendMode, r, g, b, a);
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 break;
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 case 32:
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
236 switch (dst->format->Rmask) {
2901
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
237 case 0x00FF0000:
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
238 if (!dst->format->Amask) {
2901
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 return SDL_BlendPoint_RGB888(dst, x, y, blendMode, r, g, b,
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 a);
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 } else {
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 return SDL_BlendPoint_ARGB8888(dst, x, y, blendMode, r, g, b,
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 a);
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 break;
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246 }
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
247 break;
2901
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 default:
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 break;
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
252 if (!dst->format->Amask) {
2901
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253 return SDL_BlendPoint_RGB(dst, x, y, blendMode, r, g, b, a);
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 } else {
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 return SDL_BlendPoint_RGBA(dst, x, y, blendMode, r, g, b, a);
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257 }
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
259 int
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
260 SDL_BlendPoints(SDL_Surface * dst, const SDL_Point * points, int count,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
261 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
262 {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
263 int minx, miny;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
264 int maxx, maxy;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
265 int i;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
266 int x, y;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
267 int (*func)(SDL_Surface * dst, int x, int y,
4929
aa8888658021 Use the enumerated type for blend and scale mode instead of int
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
268 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) = NULL;
3536
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
269 int status = 0;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
270
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
271 if (!dst) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
272 SDL_SetError("Passed NULL destination surface");
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
273 return -1;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
274 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
275
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
276 /* This function doesn't work on surfaces < 8 bpp */
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
277 if (dst->format->BitsPerPixel < 8) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
278 SDL_SetError("SDL_BlendPoints(): Unsupported surface format");
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
279 return (-1);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
280 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
281
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
282 if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
283 r = DRAW_MUL(r, a);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
284 g = DRAW_MUL(g, a);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
285 b = DRAW_MUL(b, a);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
286 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
287
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
288 /* FIXME: Does this function pointer slow things down significantly? */
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
289 switch (dst->format->BitsPerPixel) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
290 case 15:
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
291 switch (dst->format->Rmask) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
292 case 0x7C00:
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
293 func = SDL_BlendPoint_RGB555;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
294 break;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
295 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
296 break;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
297 case 16:
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Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
298 switch (dst->format->Rmask) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
299 case 0xF800:
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parents: 2901
diff changeset
300 func = SDL_BlendPoint_RGB565;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
301 break;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
302 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
303 break;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
304 case 32:
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
305 switch (dst->format->Rmask) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
306 case 0x00FF0000:
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
307 if (!dst->format->Amask) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
308 func = SDL_BlendPoint_RGB888;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
309 } else {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
310 func = SDL_BlendPoint_ARGB8888;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
311 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
312 break;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
313 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
314 break;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
315 default:
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
316 break;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
317 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
318
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
319 if (!func) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
320 if (!dst->format->Amask) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
321 func = SDL_BlendPoint_RGB;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
322 } else {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
323 func = SDL_BlendPoint_RGBA;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
324 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
325 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
326
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
327 minx = dst->clip_rect.x;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
328 maxx = dst->clip_rect.x + dst->clip_rect.w - 1;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
329 miny = dst->clip_rect.y;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
330 maxy = dst->clip_rect.y + dst->clip_rect.h - 1;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
331
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
332 for (i = 0; i < count; ++i) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
333 x = points[i].x;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
334 y = points[i].y;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
335
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
336 if (x < minx || x > maxx || y < miny || y > maxy) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
337 continue;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
338 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
339 status = func(dst, x, y, blendMode, r, g, b, a);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
340 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
341 return status;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
342 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects:
Sam Lantinga <slouken@libsdl.org>
parents: 2901
diff changeset
343
2901
133601e3b255 Added RenderPiont() API
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
344 /* vi: set ts=4 sw=4 expandtab: */