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comparison test/testsprite2.c @ 1917:3f54b3ec5a07

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Implemented scaling in the D3D renderer
author Sam Lantinga <slouken@libsdl.org>
date Wed, 19 Jul 2006 05:45:42 +0000
parents c773b0c0ac89
children a788656ca29a
comparison
equal deleted inserted replaced
1916:c773b0c0ac89 1917:3f54b3ec5a07
15 static SDL_TextureID *sprites; 15 static SDL_TextureID *sprites;
16 static SDL_Rect *positions; 16 static SDL_Rect *positions;
17 static SDL_Rect *velocities; 17 static SDL_Rect *velocities;
18 static int sprite_w, sprite_h; 18 static int sprite_w, sprite_h;
19 static SDL_TextureBlendMode blendMode = SDL_TextureBlendMode_Mask; 19 static SDL_TextureBlendMode blendMode = SDL_TextureBlendMode_Mask;
20 static SDL_TextureScaleMode scaleMode = SDL_TextureScaleMode_None;
20 21
21 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ 22 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
22 static void 23 static void
23 quit(int rc) 24 quit(int rc)
24 { 25 {
85 SDL_GetWindowSize(window, &window_w, &window_h); 86 SDL_GetWindowSize(window, &window_w, &window_h);
86 87
87 /* Move the sprite, bounce at the wall, and draw */ 88 /* Move the sprite, bounce at the wall, and draw */
88 n = 0; 89 n = 0;
89 SDL_RenderFill(NULL, BACKGROUND); 90 SDL_RenderFill(NULL, BACKGROUND);
90 /*
91 for (i = 0; i < num_sprites; ++i) {
92 position = &positions[i];
93 SDL_RenderFill(position, BACKGROUND);
94 }
95 */
96 for (i = 0; i < num_sprites; ++i) { 91 for (i = 0; i < num_sprites; ++i) {
97 position = &positions[i]; 92 position = &positions[i];
98 velocity = &velocities[i]; 93 velocity = &velocities[i];
99 position->x += velocity->x; 94 position->x += velocity->x;
100 if ((position->x < 0) || (position->x >= (window_w - sprite_w))) { 95 if ((position->x < 0) || (position->x >= (window_w - sprite_w))) {
106 velocity->y = -velocity->y; 101 velocity->y = -velocity->y;
107 position->y += velocity->y; 102 position->y += velocity->y;
108 } 103 }
109 104
110 /* Blit the sprite onto the screen */ 105 /* Blit the sprite onto the screen */
111 SDL_RenderCopy(sprite, NULL, position, blendMode, 106 SDL_RenderCopy(sprite, NULL, position, blendMode, scaleMode);
112 SDL_TextureScaleMode_None);
113 } 107 }
114 108
115 /* Update the screen! */ 109 /* Update the screen! */
116 SDL_RenderPresent(); 110 SDL_RenderPresent();
117 } 111 }
140 if (SDL_strcasecmp(argv[i], "--blend") == 0) { 134 if (SDL_strcasecmp(argv[i], "--blend") == 0) {
141 if (argv[i + 1]) { 135 if (argv[i + 1]) {
142 if (SDL_strcasecmp(argv[i + 1], "none") == 0) { 136 if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
143 blendMode = SDL_TextureBlendMode_None; 137 blendMode = SDL_TextureBlendMode_None;
144 consumed = 2; 138 consumed = 2;
139 } else if (SDL_strcasecmp(argv[i + 1], "mask") == 0) {
140 blendMode = SDL_TextureBlendMode_Mask;
141 consumed = 2;
145 } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) { 142 } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) {
146 blendMode = SDL_TextureBlendMode_Blend; 143 blendMode = SDL_TextureBlendMode_Blend;
147 consumed = 2; 144 consumed = 2;
148 } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) { 145 } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) {
149 blendMode = SDL_TextureBlendMode_Add; 146 blendMode = SDL_TextureBlendMode_Add;
150 consumed = 2; 147 consumed = 2;
151 } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) { 148 } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) {
152 blendMode = SDL_TextureBlendMode_Mod; 149 blendMode = SDL_TextureBlendMode_Mod;
150 consumed = 2;
151 }
152 }
153 } else if (SDL_strcasecmp(argv[i], "--scale") == 0) {
154 if (argv[i + 1]) {
155 if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
156 scaleMode = SDL_TextureScaleMode_None;
157 consumed = 2;
158 } else if (SDL_strcasecmp(argv[i + 1], "fast") == 0) {
159 scaleMode = SDL_TextureScaleMode_Fast;
160 consumed = 2;
161 } else if (SDL_strcasecmp(argv[i + 1], "slow") == 0) {
162 scaleMode = SDL_TextureScaleMode_Slow;
163 consumed = 2;
164 } else if (SDL_strcasecmp(argv[i + 1], "best") == 0) {
165 scaleMode = SDL_TextureScaleMode_Best;
153 consumed = 2; 166 consumed = 2;
154 } 167 }
155 } 168 }
156 } else if (SDL_isdigit(*argv[i])) { 169 } else if (SDL_isdigit(*argv[i])) {
157 num_sprites = SDL_atoi(argv[i]); 170 num_sprites = SDL_atoi(argv[i]);
158 consumed = 1; 171 consumed = 1;
159 } 172 }
160 } 173 }
161 if (consumed < 0) { 174 if (consumed < 0) {
162 fprintf(stderr, "Usage: %s %s [--blend none|blend|add|mod]", 175 fprintf(stderr,
176 "Usage: %s %s [--blend none|mask|blend|add|mod] [--scale none|fast|slow|best]",
163 argv[0], CommonUsage(state)); 177 argv[0], CommonUsage(state));
164 quit(1); 178 quit(1);
165 } 179 }
166 i += consumed; 180 i += consumed;
167 } 181 }
190 if (!positions || !velocities) { 204 if (!positions || !velocities) {
191 fprintf(stderr, "Out of memory!\n"); 205 fprintf(stderr, "Out of memory!\n");
192 quit(2); 206 quit(2);
193 } 207 }
194 srand(time(NULL)); 208 srand(time(NULL));
209 if (scaleMode != SDL_TextureScaleMode_None) {
210 sprite_w += sprite_w / 2;
211 sprite_h += sprite_h / 2;
212 }
195 for (i = 0; i < num_sprites; ++i) { 213 for (i = 0; i < num_sprites; ++i) {
196 positions[i].x = rand() % (state->window_w - sprite_w); 214 positions[i].x = rand() % (state->window_w - sprite_w);
197 positions[i].y = rand() % (state->window_h - sprite_h); 215 positions[i].y = rand() % (state->window_h - sprite_h);
198 positions[i].w = sprite_w; 216 positions[i].w = sprite_w;
199 positions[i].h = sprite_h; 217 positions[i].h = sprite_h;