diff options
| -rw-r--r-- | main.c | 456 |
1 files changed, 2 insertions, 454 deletions
@@ -11,8 +11,6 @@ #include <vlc/vlc.h> -//#define EFFECT_FIRE_COLORKEYED - #define NARRAY(ARRAY) \ (sizeof(ARRAY) / sizeof((ARRAY)[0])) @@ -42,258 +40,6 @@ static SDL_Surface *screen; -enum Effects { - EFFECT_FIRE, - EFFECT_BLOPS, - EFFECT_ERASOR -}; -static enum Effects currentEffect = EFFECT_FIRE; - -static SDL_Color colors[256]; - -#define FIRE_DECAY(C) \ - ((C) > 0 ? (C) - 1 : 0) - -static inline SDL_Surface * -effect_fire_init(void) -{ - Uint32 flags = SDL_HWSURFACE; - SDL_Surface *surface; - -#ifdef EFFECT_FIRE_COLORKEYED - surface = SDL_CreateRGBSurface(flags, screen->w, screen->h, 8, - 0, 0, 0, 0); -#else - flags |= SDL_SRCALPHA; - surface = SDL_CreateRGBSurface(flags, screen->w, screen->h, 32, - 0x000000FF, 0x0000FF00, - 0x00FF0000, 0xFF000000); -#endif - if (surface == NULL) { - SDL_ERROR("SDL_CreateRGBSurface"); - exit(EXIT_FAILURE); - } - -#ifdef EFFECT_FIRE_COLORKEYED - if (SDL_SetColorKey(surface, SDL_SRCCOLORKEY, 0)) { - SDL_ERROR("SDL_SetColorKey"); - SDL_FreeSurface(surface); - exit(EXIT_FAILURE); - } -#endif - - memset(colors, 0, sizeof(colors)); - - for (int i = 0; i < 32; i++) { -#ifdef EFFECT_FIRE_COLORKEYED - /* black to blue, 32 values */ - colors[i].b = i << 1; -#else - /* transparent to blue, 32 values */ - colors[i].b = 255; - colors[i].unused = i << 3; -#endif - - /* blue to red, 32 values */ - colors[i + 32].r = i << 3; - colors[i + 32].b = 64 - (i << 1); - colors[i + 32].unused = SDL_ALPHA_OPAQUE; - - /*red to yellow, 32 values */ - colors[i + 64].r = 255; - colors[i + 64].g = i << 3; - colors[i + 64].unused = SDL_ALPHA_OPAQUE; - - /* yellow to white, 162 */ - colors[i + 96].r = 255; - colors[i + 96].g = 255; - colors[i + 96].b = i << 2; - colors[i + 96].unused = SDL_ALPHA_OPAQUE; - colors[i + 128].r = 255; - colors[i + 128].g = 255; - colors[i + 128].b = 64 + (i << 2); - colors[i + 128].unused = SDL_ALPHA_OPAQUE; - colors[i + 160].r = 255; - colors[i + 160].g = 255; - colors[i + 160].b = 128 + (i << 2); - colors[i + 160].unused = SDL_ALPHA_OPAQUE; - colors[i + 192].r = 255; - colors[i + 192].g = 255; - colors[i + 192].b = 192 + i; - colors[i + 192].unused = SDL_ALPHA_OPAQUE; - colors[i + 224].r = 255; - colors[i + 224].g = 255; - colors[i + 224].b = 224 + i; - colors[i + 224].unused = SDL_ALPHA_OPAQUE; - } - -#ifdef EFFECT_FIRE_COLORKEYED - SDL_SetPalette(surface, SDL_LOGPAL | SDL_PHYSPAL, colors, - 0, NARRAY(colors)); -#else - SDL_FillRect(surface, NULL, - SDL_MapRGBA(surface->format, - colors[0].r, colors[0].g, - colors[0].b, colors[0].unused)); -#endif - - return surface; -} - -#ifdef EFFECT_FIRE_COLORKEYED - -static inline Uint8 -effect_fire_get_color(SDL_Surface *surface, int x, int y) -{ - return ((Uint8 *)surface->pixels)[surface->w*y + x]; -} - -static inline void -effect_fire_set_color(SDL_Surface *surface, int x, int y, Uint8 color) -{ - ((Uint8 *)surface->pixels)[surface->w*y + x] = color; -} - -#else - -static inline Uint8 -effect_fire_get_color(SDL_Surface *surface, int x, int y) -{ - SDL_Color color; - - /* alpha-channel surface */ - SDL_GetRGBA(((Uint32 *)surface->pixels)[surface->w*y + x], - surface->format, &color.r, &color.g, &color.b, &color.unused); - for (Uint8 i = 0; i < NARRAY(colors); i++) - if (!memcmp(colors + i, &color, sizeof(color))) - return i; - - /* shouldn't be reached */ - return 0; -} - -static inline void -effect_fire_set_color(SDL_Surface *surface, int x, int y, Uint8 color) -{ - ((Uint32 *)surface->pixels)[surface->w*y + x] = - SDL_MapRGBA(surface->format, - colors[color].r, colors[color].g, - colors[color].b, colors[color].unused); -} - -#endif - -static inline void -effect_fire_update(SDL_Surface *surface) -{ - int mouse_x, mouse_y; - - SDL_MAYBE_LOCK(surface); - - if (currentEffect == EFFECT_FIRE && - (SDL_GetMouseState(&mouse_x, &mouse_y) & SDL_BUTTON(1))) - effect_fire_set_color(surface, mouse_x, mouse_y, - (float)rand()/RAND_MAX > .3 ? 255 : 0); - - for (int y = surface->h - 1; y > 0; y--) { - Uint16 acc; - Uint8 color; - - /* right edge */ - acc = (Uint16)effect_fire_get_color(surface, surface->w - 2, y) - + effect_fire_get_color(surface, surface->w - 1, y); - color = effect_fire_get_color(surface, surface->w - 1, y - 1); - if (acc/2 > color) - color = (Uint8)((acc + color)/3); - effect_fire_set_color(surface, surface->w - 1, y - 1, - FIRE_DECAY(color)); - - /* center */ - for (int x = surface->w - 2; x > 0; x--) { - acc = (Uint16)effect_fire_get_color(surface, x - 1, y) - + effect_fire_get_color(surface, x, y) - + effect_fire_get_color(surface, x + 1, y); - color = effect_fire_get_color(surface, x, y - 1); - if (acc/3 > color) - color = (Uint8)((acc + color)/4); - effect_fire_set_color(surface, x, y - 1, FIRE_DECAY(color)); - } - - /* left edge */ - acc = (Uint16)effect_fire_get_color(surface, 0, y) - + effect_fire_get_color(surface, 1, y); - color = effect_fire_get_color(surface, 0, y - 1); - if (acc/2 > color) - color = (Uint8)((acc + color)/3); - effect_fire_set_color(surface, 0, y - 1, FIRE_DECAY(color)); - } - - SDL_MAYBE_UNLOCK(surface); -} - -struct EffectBlop { - struct EffectBlop *next; - - Sint16 x; - Sint16 y; - Sint16 radius; - - SDL_Color color; - Uint8 alpha; -}; -static struct EffectBlop effect_blops_list = {NULL}; - -static void -effect_blops_create(Uint16 x, Uint16 y, SDL_Color color) -{ - struct EffectBlop *tail = &effect_blops_list; - - while (tail->next != NULL) - tail = tail->next; - - tail->next = malloc(sizeof(struct EffectBlop)); - tail = tail->next; - - tail->next = NULL; - tail->x = (Sint16)x; - tail->y = (Sint16)y; - tail->radius = 1; - tail->color = color; - tail->alpha = SDL_ALPHA_OPAQUE; -} - -static inline void -effect_blops_update(void) -{ - struct EffectBlop *next; - - for (struct EffectBlop *cur = &effect_blops_list; - cur != NULL && cur->next != NULL; - cur = next) { - next = cur->next; - - filledCircleRGBA(screen, next->x, next->y, next->radius, - next->color.r, next->color.g, - next->color.b, next->alpha); - if (next->radius > 1) - aacircleRGBA(screen, next->x, next->y, next->radius, - next->color.r, next->color.g, - next->color.b, next->alpha); - - next->radius++; - if (next->alpha > 10) - next->alpha -= 3; - else - next->alpha = 0; - - if (next->alpha == SDL_ALPHA_TRANSPARENT) { - cur->next = next->next; - free(next); - next = cur; - } - } -} - static SDL_Surface *image_surface = NULL; static void @@ -412,63 +158,6 @@ effect_video_change(const char *file, SDL_Color *key) libvlc_media_player_play(effect_video_ctx.mp); } -static SDL_Surface *effect_erasor_surface, *effect_erasor_applysurf; - -static inline void -effect_erasor_init(void) -{ - effect_erasor_surface = SDL_CreateRGBSurface(SDL_SWSURFACE | SDL_SRCALPHA, - screen->w, screen->h, 16, - 0x0003, 0x000C, 0x0030, 0xFF00); - - effect_erasor_applysurf = SDL_CreateRGBSurface(SDL_HWSURFACE | SDL_SRCALPHA, - screen->w, screen->h, 32, - 0x000000FF, 0x0000FF00, - 0x00FF0000, 0xFF000000); -} - -static inline void -effect_erasor_draw(int x, int y, Uint8 intensity) -{ - filledCircleRGBA(effect_erasor_surface, x, y, 5, - 0, 0, 0, intensity); - -} - -static void -effect_erasor_apply(void) -{ - SDL_MAYBE_LOCK(effect_erasor_surface); - SDL_MAYBE_LOCK(effect_erasor_applysurf); - - for (int i = 0; i < effect_erasor_surface->w*effect_erasor_surface->h; i++) { - Uint8 erasor_alpha; - SDL_Color dst_color; - - SDL_GetRGBA(((Uint16 *)effect_erasor_surface->pixels)[i], - effect_erasor_surface->format, - &dst_color.r, &dst_color.g, - &dst_color.b, &erasor_alpha); - SDL_GetRGBA(((Uint32 *)effect_erasor_applysurf->pixels)[i], - effect_erasor_applysurf->format, - &dst_color.r, &dst_color.g, - &dst_color.b, &dst_color.unused); - - if (dst_color.unused > erasor_alpha) - dst_color.unused -= erasor_alpha; - else - dst_color.unused = 0; - - ((Uint32 *)effect_erasor_applysurf->pixels)[i] = - SDL_MapRGBA(effect_erasor_applysurf->format, - dst_color.r, dst_color.g, - dst_color.b, dst_color.unused); - } - - SDL_MAYBE_UNLOCK(effect_erasor_applysurf); - SDL_MAYBE_UNLOCK(effect_erasor_surface); -} - static SDL_Color effect_bg_color = {0, 0, 0}; static inline void @@ -477,64 +166,6 @@ effect_bg_change(SDL_Color color) effect_bg_color = color; } -static SDL_Color effect_generic_color = {0, 0, 0}; - -static inline void -effect_generic_set_color(SDL_Color color) -{ - effect_generic_color = color; -} - -static SDL_Color effect_generic_colors[256]; - -static inline void -effect_generic_init(void) -{ - memset(effect_generic_colors, 0, sizeof(effect_generic_colors)); - - for (int i = 0; i < 32; i++) { - /* black to blue, 32 values */ - effect_generic_colors[i].b = i << 1; - - /* blue to red, 32 values */ - effect_generic_colors[i + 32].r = i << 3; - effect_generic_colors[i + 32].b = 64 - (i << 1); - - /*red to yellow, 32 values */ - effect_generic_colors[i + 64].r = 255; - effect_generic_colors[i + 64].g = i << 3; - - /* yellow to white, 162 */ - effect_generic_colors[i + 96].r = 255; - effect_generic_colors[i + 96].g = 255; - effect_generic_colors[i + 96].b = i << 2; - effect_generic_colors[i + 128].r = 255; - effect_generic_colors[i + 128].g = 255; - effect_generic_colors[i + 128].b = 64 + (i << 2); - effect_generic_colors[i + 160].r = 255; - effect_generic_colors[i + 160].g = 255; - effect_generic_colors[i + 160].b = 128 + (i << 2); - effect_generic_colors[i + 192].r = 255; - effect_generic_colors[i + 192].g = 255; - effect_generic_colors[i + 192].b = 192 + i; - effect_generic_colors[i + 224].r = 255; - effect_generic_colors[i + 224].g = 255; - effect_generic_colors[i + 224].b = 224 + i; - } -} - -static SDL_Color -effect_generic_get_next_color(void) -{ - static int curColor = 0; - SDL_Color ret = effect_generic_colors[curColor]; - - curColor++; - curColor %= NARRAY(effect_generic_colors); - - return ret; -} - static inline void process_events(void) { @@ -560,23 +191,6 @@ process_events(void) default: break; } - } else if (event.key.keysym.mod & KMOD_LCTRL) { - switch (event.key.keysym.sym) { - case SDLK_0: - effect_generic_set_color((SDL_Color){0, 0, 0}); - break; - case SDLK_1: - effect_generic_set_color((SDL_Color){255, 0, 0}); - break; - case SDLK_2: - effect_generic_set_color((SDL_Color){0, 255, 0}); - break; - case SDLK_3: - effect_generic_set_color((SDL_Color){0, 0, 255}); - break; - default: - break; - } } else if (event.key.keysym.mod & KMOD_RCTRL) { switch (event.key.keysym.sym) { case SDLK_0: @@ -618,56 +232,12 @@ process_events(void) effect_image_change("image_2.png"); break; - case SDLK_f: - currentEffect = EFFECT_FIRE; - break; - case SDLK_b: - currentEffect = EFFECT_BLOPS; - break; - case SDLK_e: - currentEffect = EFFECT_ERASOR; - break; - default: break; } } break; - case SDL_MOUSEBUTTONDOWN: - switch (currentEffect) { - case EFFECT_BLOPS: - effect_blops_create(event.button.x, event.button.y, - event.button.button == SDL_BUTTON_LEFT - ? effect_generic_color - : effect_generic_get_next_color()); - break; - case EFFECT_ERASOR: - effect_erasor_draw(event.button.x, event.button.y, 128); - break; - default: - break; - } - break; - - case SDL_MOUSEMOTION: - switch (currentEffect) { - case EFFECT_BLOPS: - if (event.motion.state & (SDL_BUTTON(1) | SDL_BUTTON(3))) - effect_blops_create(event.motion.x, event.motion.y, - event.motion.state & SDL_BUTTON(1) - ? effect_generic_color - : effect_generic_get_next_color()); - break; - case EFFECT_ERASOR: - if (event.motion.state & SDL_BUTTON(1)) - effect_erasor_draw(event.motion.x, event.motion.y, 128); - break; - default: - break; - } - break; - case SDL_QUIT: exit(EXIT_SUCCESS); @@ -682,15 +252,13 @@ main(int argc, char **argv) { FPSmanager fpsm; - SDL_Surface *fire_surface; - if (SDL_Init(SDL_INIT_VIDEO)) { SDL_ERROR("SDL_Init"); return EXIT_FAILURE; } atexit(SDL_Quit); - SDL_WM_SetCaption("Effect Pad", NULL); + SDL_WM_SetCaption("OSC Graphics", NULL); screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, 32, SDL_HWSURFACE | SDL_DOUBLEBUF); @@ -702,10 +270,7 @@ main(int argc, char **argv) SDL_initFramerate(&fpsm); SDL_setFramerate(&fpsm, FRAMERATE); - effect_generic_init(); effect_video_init(); - fire_surface = effect_fire_init(); - effect_erasor_init(); for (;;) { process_events(); @@ -722,26 +287,9 @@ main(int argc, char **argv) SDL_UnlockMutex(effect_video_ctx.mutex); } - if (image_surface != NULL) { -#if 0 - SDL_FillRect(effect_erasor_applysurf, NULL, - SDL_MapRGBA(effect_erasor_applysurf->format, - 0, 0, 0, SDL_ALPHA_OPAQUE)); -#endif - + if (image_surface != NULL) SDL_BlitSurface(image_surface, NULL, screen, NULL); -#if 0 - effect_erasor_apply(); - SDL_BlitSurface(effect_erasor_applysurf, NULL, screen, NULL); -#endif - } - - effect_fire_update(fire_surface); - SDL_BlitSurface(fire_surface, NULL, screen, NULL); - - effect_blops_update(); - SDL_Flip(screen); SDL_framerateDelay(&fpsm); } |