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comparison src/video/dummy/SDL_nullrender.c @ 2888:32e8bbba1e94

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Added stubs for software implementations of blending fills and line drawing
author Sam Lantinga <slouken@libsdl.org>
date Sat, 20 Dec 2008 13:14:28 +0000
parents 9dde605c7540
children 133601e3b255
comparison
equal deleted inserted replaced
2887:f8c0c5ef6d54 2888:32e8bbba1e94
30 /* SDL surface based renderer implementation */ 30 /* SDL surface based renderer implementation */
31 31
32 static SDL_Renderer *SDL_DUMMY_CreateRenderer(SDL_Window * window, 32 static SDL_Renderer *SDL_DUMMY_CreateRenderer(SDL_Window * window,
33 Uint32 flags); 33 Uint32 flags);
34 static int SDL_DUMMY_SetDrawColor(SDL_Renderer * renderer); 34 static int SDL_DUMMY_SetDrawColor(SDL_Renderer * renderer);
35 static int SDL_DUMMY_SetDrawBlendMode(SDL_Renderer * renderer);
36 static int SDL_DUMMY_RenderLine(SDL_Renderer * renderer, int x1, int y1,
37 int x2, int y2);
35 static int SDL_DUMMY_RenderFill(SDL_Renderer * renderer, 38 static int SDL_DUMMY_RenderFill(SDL_Renderer * renderer,
36 const SDL_Rect * rect); 39 const SDL_Rect * rect);
37 static int SDL_DUMMY_RenderCopy(SDL_Renderer * renderer, 40 static int SDL_DUMMY_RenderCopy(SDL_Renderer * renderer,
38 SDL_Texture * texture, 41 SDL_Texture * texture,
39 const SDL_Rect * srcrect, 42 const SDL_Rect * srcrect,
88 return NULL; 91 return NULL;
89 } 92 }
90 SDL_zerop(data); 93 SDL_zerop(data);
91 94
92 renderer->SetDrawColor = SDL_DUMMY_SetDrawColor; 95 renderer->SetDrawColor = SDL_DUMMY_SetDrawColor;
96 renderer->SetDrawBlendMode = SDL_DUMMY_SetDrawBlendMode;
97 renderer->RenderLine = SDL_DUMMY_RenderLine;
93 renderer->RenderFill = SDL_DUMMY_RenderFill; 98 renderer->RenderFill = SDL_DUMMY_RenderFill;
94 renderer->RenderCopy = SDL_DUMMY_RenderCopy; 99 renderer->RenderCopy = SDL_DUMMY_RenderCopy;
95 renderer->RenderPresent = SDL_DUMMY_RenderPresent; 100 renderer->RenderPresent = SDL_DUMMY_RenderPresent;
96 renderer->DestroyRenderer = SDL_DUMMY_DestroyRenderer; 101 renderer->DestroyRenderer = SDL_DUMMY_DestroyRenderer;
97 renderer->info.name = SDL_DUMMY_RenderDriver.info.name; 102 renderer->info.name = SDL_DUMMY_RenderDriver.info.name;
130 { 135 {
131 return 0; 136 return 0;
132 } 137 }
133 138
134 static int 139 static int
140 SDL_DUMMY_SetDrawBlendMode(SDL_Renderer * renderer)
141 {
142 return 0;
143 }
144
145 static int
146 SDL_DUMMY_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
147 {
148 SDL_DUMMY_RenderData *data =
149 (SDL_DUMMY_RenderData *) renderer->driverdata;
150 SDL_Surface *target = data->screens[data->current_screen];
151 int status;
152
153 if (renderer->blendMode == SDL_BLENDMODE_NONE) {
154 Uint32 color =
155 SDL_MapRGBA(target->format, renderer->r, renderer->g, renderer->b,
156 renderer->a);
157
158 status = SDL_DrawLine(target, x1, y1, x2, y2, color);
159 } else {
160 status =
161 SDL_BlendLine(target, x1, y1, x2, y2, renderer->blendMode,
162 renderer->r, renderer->g, renderer->b, renderer->a);
163 }
164 return status;
165 }
166
167 static int
135 SDL_DUMMY_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect) 168 SDL_DUMMY_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect)
136 { 169 {
137 SDL_DUMMY_RenderData *data = 170 SDL_DUMMY_RenderData *data =
138 (SDL_DUMMY_RenderData *) renderer->driverdata; 171 (SDL_DUMMY_RenderData *) renderer->driverdata;
139 SDL_Surface *target = data->screens[data->current_screen]; 172 SDL_Surface *target = data->screens[data->current_screen];
140 Uint32 color;
141 SDL_Rect real_rect = *rect; 173 SDL_Rect real_rect = *rect;
142 174 int status;
143 color = SDL_MapRGBA(target->format, 175
144 renderer->r, renderer->g, renderer->b, renderer->a); 176 if (renderer->blendMode == SDL_BLENDMODE_NONE) {
145 177 Uint32 color =
146 return SDL_FillRect(target, &real_rect, color); 178 SDL_MapRGBA(target->format, renderer->r, renderer->g, renderer->b,
179 renderer->a);
180
181 status = SDL_FillRect(target, &real_rect, color);
182 } else {
183 status =
184 SDL_BlendRect(target, &real_rect, renderer->blendMode,
185 renderer->r, renderer->g, renderer->b, renderer->a);
186 }
187 return status;
147 } 188 }
148 189
149 static int 190 static int
150 SDL_DUMMY_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture, 191 SDL_DUMMY_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
151 const SDL_Rect * srcrect, const SDL_Rect * dstrect) 192 const SDL_Rect * srcrect, const SDL_Rect * dstrect)