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comparison test/testsprite2.c @ 3596:f638ded38b8a

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Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Renamed SDL_RenderPoint() and SDL_RenderLine() to SDL_RenderDrawPoint() and SDL_RenderDrawLine(). Added API for rectangle drawing (as opposed to filling) Added placeholder API functions for circles and ellipses ... I'm not sure whether these will stay. Optimized software line drawing quite a bit. Added support for Wu's anti-aliased line drawing, currently disabled by default.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 23 Dec 2009 01:55:00 +0000
parents 5543db4239e6
children 64ce267332c6
comparison
equal deleted inserted replaced
3595:b7c6828d4039 3596:f638ded38b8a
137 SDL_SetTextureAlphaMod(sprite, (Uint8) current_alpha); 137 SDL_SetTextureAlphaMod(sprite, (Uint8) current_alpha);
138 } 138 }
139 139
140 /* Draw a gray background */ 140 /* Draw a gray background */
141 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); 141 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
142 SDL_RenderRect(NULL); 142 SDL_RenderClear();
143 143
144 /* Test points */ 144 /* Test points */
145 SDL_SetRenderDrawColor(0xFF, 0x00, 0x00, 0xFF); 145 SDL_SetRenderDrawColor(0xFF, 0x00, 0x00, 0xFF);
146 SDL_RenderPoint(0, 0); 146 SDL_RenderDrawPoint(0, 0);
147 SDL_RenderPoint(window_w-1, 0); 147 SDL_RenderDrawPoint(window_w-1, 0);
148 SDL_RenderPoint(0, window_h-1); 148 SDL_RenderDrawPoint(0, window_h-1);
149 SDL_RenderPoint(window_w-1, window_h-1); 149 SDL_RenderDrawPoint(window_w-1, window_h-1);
150 150
151 /* Test horizontal and vertical lines */ 151 /* Test horizontal and vertical lines */
152 SDL_SetRenderDrawColor(0x00, 0xFF, 0x00, 0xFF); 152 SDL_SetRenderDrawColor(0x00, 0xFF, 0x00, 0xFF);
153 SDL_RenderLine(1, 0, window_w-2, 0); 153 SDL_RenderDrawLine(1, 0, window_w-2, 0);
154 SDL_RenderLine(1, window_h-1, window_w-2, window_h-1); 154 SDL_RenderDrawLine(1, window_h-1, window_w-2, window_h-1);
155 SDL_RenderLine(0, 1, 0, window_h-2); 155 SDL_RenderDrawLine(0, 1, 0, window_h-2);
156 SDL_RenderLine(window_w-1, 1, window_w-1, window_h-2); 156 SDL_RenderDrawLine(window_w-1, 1, window_w-1, window_h-2);
157 157
158 /* Test fill and copy */ 158 /* Test fill and copy */
159 SDL_SetRenderDrawColor(0xFF, 0xFF, 0xFF, 0xFF); 159 SDL_SetRenderDrawColor(0xFF, 0xFF, 0xFF, 0xFF);
160 temp.x = 1; 160 temp.x = 1;
161 temp.y = 1; 161 temp.y = 1;
162 temp.w = sprite_w; 162 temp.w = sprite_w;
163 temp.h = sprite_h; 163 temp.h = sprite_h;
164 SDL_RenderRect(&temp); 164 SDL_RenderFillRect(&temp);
165 SDL_RenderCopy(sprite, NULL, &temp); 165 SDL_RenderCopy(sprite, NULL, &temp);
166 temp.x = window_w-sprite_w-1; 166 temp.x = window_w-sprite_w-1;
167 temp.y = 1; 167 temp.y = 1;
168 temp.w = sprite_w; 168 temp.w = sprite_w;
169 temp.h = sprite_h; 169 temp.h = sprite_h;
170 SDL_RenderRect(&temp); 170 SDL_RenderFillRect(&temp);
171 SDL_RenderCopy(sprite, NULL, &temp); 171 SDL_RenderCopy(sprite, NULL, &temp);
172 temp.x = 1; 172 temp.x = 1;
173 temp.y = window_h-sprite_h-1; 173 temp.y = window_h-sprite_h-1;
174 temp.w = sprite_w; 174 temp.w = sprite_w;
175 temp.h = sprite_h; 175 temp.h = sprite_h;
176 SDL_RenderRect(&temp); 176 SDL_RenderFillRect(&temp);
177 SDL_RenderCopy(sprite, NULL, &temp); 177 SDL_RenderCopy(sprite, NULL, &temp);
178 temp.x = window_w-sprite_w-1; 178 temp.x = window_w-sprite_w-1;
179 temp.y = window_h-sprite_h-1; 179 temp.y = window_h-sprite_h-1;
180 temp.w = sprite_w; 180 temp.w = sprite_w;
181 temp.h = sprite_h; 181 temp.h = sprite_h;
182 SDL_RenderRect(&temp); 182 SDL_RenderFillRect(&temp);
183 SDL_RenderCopy(sprite, NULL, &temp); 183 SDL_RenderCopy(sprite, NULL, &temp);
184 184
185 /* Test diagonal lines */ 185 /* Test diagonal lines */
186 SDL_SetRenderDrawColor(0x00, 0xFF, 0x00, 0xFF); 186 SDL_SetRenderDrawColor(0x00, 0xFF, 0x00, 0xFF);
187 SDL_RenderLine(sprite_w, sprite_h, 187 SDL_RenderDrawLine(sprite_w, sprite_h,
188 window_w-sprite_w-2, window_h-sprite_h-2); 188 window_w-sprite_w-2, window_h-sprite_h-2);
189 SDL_RenderLine(window_w-sprite_w-2, sprite_h, 189 SDL_RenderDrawLine(window_w-sprite_w-2, sprite_h,
190 sprite_w, window_h-sprite_h-2); 190 sprite_w, window_h-sprite_h-2);
191 191
192 /* Move the sprite, bounce at the wall, and draw */ 192 /* Move the sprite, bounce at the wall, and draw */
193 n = 0; 193 n = 0;
194 for (i = 0; i < num_sprites; ++i) { 194 for (i = 0; i < num_sprites; ++i) {
195 position = &positions[i]; 195 position = &positions[i];
300 quit(2); 300 quit(2);
301 } 301 }
302 for (i = 0; i < state->num_windows; ++i) { 302 for (i = 0; i < state->num_windows; ++i) {
303 SDL_SelectRenderer(state->windows[i]); 303 SDL_SelectRenderer(state->windows[i]);
304 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); 304 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
305 SDL_RenderRect(NULL); 305 SDL_RenderClear();
306 } 306 }
307 if (LoadSprite("icon.bmp") < 0) { 307 if (LoadSprite("icon.bmp") < 0) {
308 quit(2); 308 quit(2);
309 } 309 }
310 310
346 case SDL_WINDOWEVENT: 346 case SDL_WINDOWEVENT:
347 switch (event.window.event) { 347 switch (event.window.event) {
348 case SDL_WINDOWEVENT_EXPOSED: 348 case SDL_WINDOWEVENT_EXPOSED:
349 SDL_SelectRenderer(event.window.windowID); 349 SDL_SelectRenderer(event.window.windowID);
350 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); 350 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
351 SDL_RenderRect(NULL); 351 SDL_RenderClear();
352 break; 352 break;
353 } 353 }
354 break; 354 break;
355 default: 355 default:
356 break; 356 break;