indent perspective.c
This commit is contained in:
Bill Kendrick
parent
88e9a3dfcf
commit
04580641df
1 changed files with 245 additions and 229 deletions
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@ -47,27 +47,24 @@
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#endif
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static void perspective_preview(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect, float step);
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect, float step);
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Uint32 perspective_api_version(void);
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int perspective_init(magic_api * api);
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int perspective_get_tool_count(magic_api * api);
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SDL_Surface * perspective_get_icon(magic_api * api, int which);
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char * perspective_get_name(magic_api * api, int which);
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SDL_Surface *perspective_get_icon(magic_api * api, int which);
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char *perspective_get_name(magic_api * api, int which);
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char * perspective_get_description(magic_api * api, int which, int mode);
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char *perspective_get_description(magic_api * api, int which, int mode);
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void perspective_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, int ox, int oy, int x, int y,
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SDL_Rect * update_rect);
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SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect);
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void perspective_click(magic_api * api, int which, int mode,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect);
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
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void perspective_release(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect);
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
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void perspective_shutdown(magic_api * api);
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@ -81,14 +78,15 @@ void perspective_switchout(magic_api * api, int which, int mode, SDL_Surface * c
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int perspective_modes(magic_api * api, int which);
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int scan_fill(magic_api * api, SDL_Surface * canvas, SDL_Surface * srfc,int x,int y, int fill_edge, int fill_tile, int size, Uint32 color);
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int scan_fill(magic_api * api, SDL_Surface * canvas, SDL_Surface * srfc, int x, int y, int fill_edge, int fill_tile,
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int size, Uint32 color);
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void perspective_line(void * ptr_to_api, int which, SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y);
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void perspective_line(void *ptr_to_api, int which, SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y);
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static const int perspective_AMOUNT= 300;
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static const int perspective_AMOUNT = 300;
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static const int perspective_RADIUS = 16;
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static const double perspective_SHARPEN = 1.0;
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Uint8 perspective_r, perspective_g, perspective_b;
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@ -111,13 +109,15 @@ float top_advc_x, right_advc_x, bottom_advc_x, left_advc_x;
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float top_advc_y, right_advc_y, bottom_advc_y, left_advc_y;
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enum {
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enum
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{
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TOOL_PERSPECTIVE,
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TOOL_ZOOM,
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perspective_NUM_TOOLS
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};
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enum {
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enum
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{
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TOP_LEFT,
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TOP_RIGHT,
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BOTTOM_RIGHT,
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@ -126,168 +126,181 @@ enum {
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/* A copy of canvas at switchin, will be used to draw from it as snapshot changes at each click */
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static SDL_Surface * canvas_back;
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static SDL_Surface *canvas_back;
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static Mix_Chunk * perspective_snd_effect[perspective_NUM_TOOLS + 1];
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static Mix_Chunk *perspective_snd_effect[perspective_NUM_TOOLS + 1];
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const char * perspective_snd_filenames[perspective_NUM_TOOLS + 1] = {
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const char *perspective_snd_filenames[perspective_NUM_TOOLS + 1] = {
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"perspective.ogg",
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"zoom_up.ogg",
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"zoom_down.ogg",
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};
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const char * perspective_icon_filenames[perspective_NUM_TOOLS] = {
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const char *perspective_icon_filenames[perspective_NUM_TOOLS] = {
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"perspective.png",
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"zoom.png",
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};
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const char * perspective_names[perspective_NUM_TOOLS] = {
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const char *perspective_names[perspective_NUM_TOOLS] = {
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gettext_noop("Perspective"),
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gettext_noop("Zoom"),
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};
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const char * perspective_descs[perspective_NUM_TOOLS] = {
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const char *perspective_descs[perspective_NUM_TOOLS] = {
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gettext_noop("Click on the corners and drag where you want to stretch the picture."),
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gettext_noop("Click and drag up to zoom in or drag down to zoom out the picture."),
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};
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Uint32 perspective_api_version(void) { return(TP_MAGIC_API_VERSION); }
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//Load sounds
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int perspective_init(magic_api * api){
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int i;
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char fname[1024];
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for (i = 0; i <= perspective_NUM_TOOLS; i++){
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snprintf(fname, sizeof(fname), "%s/sounds/magic/%s", api->data_directory, perspective_snd_filenames[i]);
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perspective_snd_effect[i] = Mix_LoadWAV(fname);
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}
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return(1);
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Uint32 perspective_api_version(void)
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{
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return (TP_MAGIC_API_VERSION);
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}
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int perspective_get_tool_count(magic_api * api ATTRIBUTE_UNUSED){
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return(perspective_NUM_TOOLS);
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//Load sounds
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int perspective_init(magic_api * api)
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{
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int i;
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char fname[1024];
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for (i = 0; i <= perspective_NUM_TOOLS; i++)
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{
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snprintf(fname, sizeof(fname), "%s/sounds/magic/%s", api->data_directory, perspective_snd_filenames[i]);
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perspective_snd_effect[i] = Mix_LoadWAV(fname);
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}
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return (1);
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}
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int perspective_get_tool_count(magic_api * api ATTRIBUTE_UNUSED)
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{
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return (perspective_NUM_TOOLS);
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}
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// Load our icons:
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SDL_Surface * perspective_get_icon(magic_api * api, int which){
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SDL_Surface *perspective_get_icon(magic_api * api, int which)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%simages/magic/%s", api->data_directory, perspective_icon_filenames[which]);
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return(IMG_Load(fname));
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return (IMG_Load(fname));
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}
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// Return our names, localized:
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char * perspective_get_name(magic_api * api ATTRIBUTE_UNUSED, int which){
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return(strdup(gettext_noop(perspective_names[which])));
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char *perspective_get_name(magic_api * api ATTRIBUTE_UNUSED, int which)
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{
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return (strdup(gettext_noop(perspective_names[which])));
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}
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// Return our descriptions, localized:
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char * perspective_get_description(magic_api * api ATTRIBUTE_UNUSED, int which, int mode ATTRIBUTE_UNUSED){
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return(strdup(gettext_noop(perspective_descs[which])));
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char *perspective_get_description(magic_api * api ATTRIBUTE_UNUSED, int which, int mode ATTRIBUTE_UNUSED)
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{
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return (strdup(gettext_noop(perspective_descs[which])));
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}
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// Affect the canvas on drag:
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void perspective_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, int ox ATTRIBUTE_UNUSED, int oy ATTRIBUTE_UNUSED, int x, int y,
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SDL_Rect * update_rect){
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SDL_Surface * last, int ox ATTRIBUTE_UNUSED, int oy ATTRIBUTE_UNUSED, int x, int y,
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SDL_Rect * update_rect)
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{
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switch (which)
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{
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case TOOL_PERSPECTIVE:
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{
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switch (corner)
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{
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case TOP_LEFT:
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{
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top_left_x = x;
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top_left_y = y;
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}
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break;
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switch (corner)
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{
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case TOP_LEFT:
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{
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top_left_x = x;
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top_left_y = y;
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}
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break;
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case TOP_RIGHT:
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{
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top_right_x = x;
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top_right_y = y;
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}
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break;
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case TOP_RIGHT:
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{
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top_right_x = x;
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top_right_y = y;
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}
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break;
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case BOTTOM_LEFT:
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{
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bottom_left_x = x;
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bottom_left_y = y;
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}
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break;
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case BOTTOM_LEFT:
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{
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bottom_left_x = x;
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bottom_left_y = y;
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}
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break;
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case BOTTOM_RIGHT:
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{
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bottom_right_x = x;
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bottom_right_y = y;
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}
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break;
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}
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case BOTTOM_RIGHT:
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{
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bottom_right_x = x;
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bottom_right_y = y;
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}
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break;
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}
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SDL_BlitSurface(canvas_back, NULL, canvas, NULL);
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SDL_BlitSurface(canvas_back, NULL, canvas, NULL);
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perspective_preview( api, which,
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canvas , last,
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x, y , update_rect , 2.0);
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perspective_preview(api, which, canvas, last, x, y, update_rect, 2.0);
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/* Draw a square and the current shape relative to it as a visual reference */
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/* square */
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api->line(api, which, canvas, last, otop_left_x, otop_left_y, otop_right_x, otop_right_y, 1, perspective_line);
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api->line(api, which, canvas, last, otop_left_x, otop_left_y, obottom_left_x, obottom_left_y, 1, perspective_line);
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api->line(api, which, canvas, last, obottom_left_x, obottom_left_y, obottom_right_x, obottom_right_y, 1, perspective_line);
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api->line(api, which, canvas, last, obottom_right_x, obottom_right_y, otop_right_x, otop_right_y, 1, perspective_line);
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/* Draw a square and the current shape relative to it as a visual reference */
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/* square */
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api->line(api, which, canvas, last, otop_left_x, otop_left_y, otop_right_x, otop_right_y, 1, perspective_line);
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api->line(api, which, canvas, last, otop_left_x, otop_left_y, obottom_left_x, obottom_left_y, 1,
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perspective_line);
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api->line(api, which, canvas, last, obottom_left_x, obottom_left_y, obottom_right_x, obottom_right_y, 1,
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perspective_line);
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api->line(api, which, canvas, last, obottom_right_x, obottom_right_y, otop_right_x, otop_right_y, 1,
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perspective_line);
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/* shape */
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api->line(api, which, canvas, last, top_left_x, top_left_y, top_right_x, top_right_y, 1, perspective_line);
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api->line(api, which, canvas, last, top_left_x, top_left_y, bottom_left_x, bottom_left_y, 1, perspective_line);
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api->line(api, which, canvas, last, bottom_left_x, bottom_left_y, bottom_right_x, bottom_right_y, 1, perspective_line);
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api->line(api, which, canvas, last, bottom_right_x, bottom_right_y, top_right_x, top_right_y, 1, perspective_line);
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/* shape */
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api->line(api, which, canvas, last, top_left_x, top_left_y, top_right_x, top_right_y, 1, perspective_line);
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api->line(api, which, canvas, last, top_left_x, top_left_y, bottom_left_x, bottom_left_y, 1, perspective_line);
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api->line(api, which, canvas, last, bottom_left_x, bottom_left_y, bottom_right_x, bottom_right_y, 1,
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perspective_line);
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api->line(api, which, canvas, last, bottom_right_x, bottom_right_y, top_right_x, top_right_y, 1,
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perspective_line);
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api->playsound(perspective_snd_effect[which], (x * 255) / canvas->w, 255);
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api->playsound(perspective_snd_effect[which], (x * 255) / canvas->w, 255);
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}
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break;
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case TOOL_ZOOM:
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{
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int x_distance, y_distance;
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int x_distance, y_distance;
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update_rect->x = update_rect->y = 0;
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update_rect->w = canvas->w;
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update_rect->h = canvas->h;
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update_rect->x = update_rect->y = 0;
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update_rect->w = canvas->w;
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update_rect->h = canvas->h;
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SDL_FillRect(canvas, update_rect, SDL_MapRGB(canvas->format, perspective_r, perspective_g, perspective_b));
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SDL_FillRect(canvas, update_rect, SDL_MapRGB(canvas->format, perspective_r, perspective_g, perspective_b));
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new_h = max(1, old_h + click_y - y);
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new_w = canvas->w * new_h / canvas->h;
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if (new_h >= sound_h)
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api->playsound(perspective_snd_effect[which], 127, 255);
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else
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api->playsound(perspective_snd_effect[which + 1], 127, 255);
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sound_h = new_h;
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new_h = max(1, old_h + click_y - y);
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new_w = canvas->w * new_h / canvas->h;
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if (new_h >= sound_h)
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api->playsound(perspective_snd_effect[which], 127, 255);
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else
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api->playsound(perspective_snd_effect[which + 1], 127, 255);
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sound_h = new_h;
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x_distance = (otop_right_x - otop_left_x) * new_w / canvas->w;
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top_left_x = bottom_left_x = canvas->w / 2 - x_distance / 2;
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top_right_x = bottom_right_x = canvas->w / 2 + x_distance / 2;
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x_distance = (otop_right_x - otop_left_x) * new_w / canvas->w;
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top_left_x = bottom_left_x = canvas->w / 2 - x_distance / 2;
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top_right_x = bottom_right_x = canvas->w / 2 + x_distance / 2;
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y_distance = (obottom_left_y - otop_left_y) * new_w / canvas->w;
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top_left_y = top_right_y = canvas->h / 2 - y_distance / 2;
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bottom_left_y = bottom_right_y = canvas->h / 2 + y_distance / 2;
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y_distance = (obottom_left_y - otop_left_y) * new_w / canvas->w;
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top_left_y = top_right_y = canvas->h / 2 - y_distance / 2;
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bottom_left_y = bottom_right_y = canvas->h / 2 + y_distance / 2;
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perspective_preview( api, which,
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canvas , last,
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x, y , update_rect , 2.0);
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perspective_preview(api, which, canvas, last, x, y, update_rect, 2.0);
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update_rect->x = update_rect->y =0;
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update_rect->w = canvas->w;
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update_rect->h = canvas->h;
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update_rect->x = update_rect->y = 0;
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update_rect->w = canvas->w;
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update_rect->h = canvas->h;
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}
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break;
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@ -303,43 +316,44 @@ void perspective_drag(magic_api * api, int which, SDL_Surface * canvas,
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// Affect the canvas on click:
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void perspective_click(magic_api * api, int which, int mode ATTRIBUTE_UNUSED,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect){
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switch(which)
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{case TOOL_PERSPECTIVE:
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{
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect)
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{
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switch (which)
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{
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case TOOL_PERSPECTIVE:
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{
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if (x < canvas->w / 2)
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{
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if (y < canvas->h / 2)
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{
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corner = TOP_LEFT;
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}
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else
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{
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corner = BOTTOM_LEFT;
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}
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}
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else
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{
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if (y < canvas->h / 2)
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{
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corner = TOP_RIGHT;
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}
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else
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{
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corner = BOTTOM_RIGHT;
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}
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}
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if (x < canvas->w / 2)
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{
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if (y < canvas->h / 2)
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{
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corner = TOP_LEFT;
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}
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else
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{
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corner = BOTTOM_LEFT;
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}
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}
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else
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{
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if (y < canvas->h / 2)
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{
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corner = TOP_RIGHT;
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}
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else
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{
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corner = BOTTOM_RIGHT;
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}
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}
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}
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break;
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}
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break;
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case TOOL_ZOOM:
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{
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click_x = x;
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click_y = y;
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old_h = new_h;
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click_x = x;
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click_y = y;
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old_h = new_h;
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}
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break;
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}
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@ -349,70 +363,67 @@ void perspective_click(magic_api * api, int which, int mode ATTRIBUTE_UNUSED,
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// Affect the canvas on release:
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void perspective_release(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect)
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect)
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{
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switch (which)
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{
|
||||
case TOOL_PERSPECTIVE:{
|
||||
perspective_preview( api, which,
|
||||
canvas , last,
|
||||
x, y , update_rect , 0.5);
|
||||
}
|
||||
case TOOL_PERSPECTIVE:
|
||||
{
|
||||
perspective_preview(api, which, canvas, last, x, y, update_rect, 0.5);
|
||||
}
|
||||
break;
|
||||
|
||||
case TOOL_ZOOM:
|
||||
{
|
||||
SDL_Surface * aux_surf;
|
||||
SDL_Surface * scaled_surf;
|
||||
{
|
||||
SDL_Surface *aux_surf;
|
||||
SDL_Surface *scaled_surf;
|
||||
|
||||
update_rect->x = update_rect->y = 0;
|
||||
update_rect->w = canvas->w;
|
||||
update_rect->h = canvas->h;
|
||||
update_rect->x = update_rect->y = 0;
|
||||
update_rect->w = canvas->w;
|
||||
update_rect->h = canvas->h;
|
||||
|
||||
SDL_FillRect(canvas, update_rect, SDL_MapRGB(canvas->format, perspective_r, perspective_g, perspective_b));
|
||||
SDL_FillRect(canvas, update_rect, SDL_MapRGB(canvas->format, perspective_r, perspective_g, perspective_b));
|
||||
|
||||
|
||||
if(new_h < canvas->h)
|
||||
{
|
||||
scaled_surf = api->scale(canvas_back, new_w, new_h, 0);
|
||||
update_rect->x = (canvas->w - new_w) / 2;
|
||||
update_rect->y = (canvas->h - new_h) / 2;
|
||||
update_rect->w = new_w;
|
||||
update_rect->h = new_h;
|
||||
SDL_BlitSurface(scaled_surf, NULL, canvas, update_rect);
|
||||
}
|
||||
else
|
||||
{
|
||||
int aux_x, aux_y, aux_h, aux_w;
|
||||
aux_h = canvas->h * canvas->h / new_h;
|
||||
aux_w = canvas->w * aux_h / canvas->h;
|
||||
aux_x = canvas->w / 2 - aux_w / 2;
|
||||
aux_y = canvas->h / 2 - aux_h / 2;
|
||||
if (new_h < canvas->h)
|
||||
{
|
||||
scaled_surf = api->scale(canvas_back, new_w, new_h, 0);
|
||||
update_rect->x = (canvas->w - new_w) / 2;
|
||||
update_rect->y = (canvas->h - new_h) / 2;
|
||||
update_rect->w = new_w;
|
||||
update_rect->h = new_h;
|
||||
SDL_BlitSurface(scaled_surf, NULL, canvas, update_rect);
|
||||
}
|
||||
else
|
||||
{
|
||||
int aux_x, aux_y, aux_h, aux_w;
|
||||
|
||||
update_rect->x = canvas->w / 2 - aux_w / 2;
|
||||
update_rect->y = canvas->h / 2 - aux_h / 2;
|
||||
update_rect->w = aux_w;
|
||||
update_rect->h = aux_h;
|
||||
aux_h = canvas->h * canvas->h / new_h;
|
||||
aux_w = canvas->w * aux_h / canvas->h;
|
||||
aux_x = canvas->w / 2 - aux_w / 2;
|
||||
aux_y = canvas->h / 2 - aux_h / 2;
|
||||
|
||||
aux_surf = SDL_CreateRGBSurface(SDL_SWSURFACE,
|
||||
aux_w,
|
||||
aux_h,
|
||||
canvas->format->BitsPerPixel,
|
||||
canvas->format->Rmask,
|
||||
canvas->format->Gmask,
|
||||
canvas->format->Bmask, 0);
|
||||
update_rect->x = canvas->w / 2 - aux_w / 2;
|
||||
update_rect->y = canvas->h / 2 - aux_h / 2;
|
||||
update_rect->w = aux_w;
|
||||
update_rect->h = aux_h;
|
||||
|
||||
SDL_BlitSurface(canvas_back, update_rect, aux_surf, NULL);
|
||||
scaled_surf = api->scale(aux_surf, canvas->w, canvas->h, 0);
|
||||
SDL_BlitSurface(scaled_surf, NULL, canvas, NULL);
|
||||
SDL_FreeSurface(aux_surf);
|
||||
}
|
||||
SDL_FreeSurface(scaled_surf);
|
||||
aux_surf = SDL_CreateRGBSurface(SDL_SWSURFACE,
|
||||
aux_w,
|
||||
aux_h,
|
||||
canvas->format->BitsPerPixel,
|
||||
canvas->format->Rmask, canvas->format->Gmask, canvas->format->Bmask, 0);
|
||||
|
||||
update_rect->x = update_rect->y = 0;
|
||||
update_rect->w = canvas->w;
|
||||
update_rect->h = canvas->h;
|
||||
SDL_BlitSurface(canvas_back, update_rect, aux_surf, NULL);
|
||||
scaled_surf = api->scale(aux_surf, canvas->w, canvas->h, 0);
|
||||
SDL_BlitSurface(scaled_surf, NULL, canvas, NULL);
|
||||
SDL_FreeSurface(aux_surf);
|
||||
}
|
||||
SDL_FreeSurface(scaled_surf);
|
||||
|
||||
update_rect->x = update_rect->y = 0;
|
||||
update_rect->w = canvas->w;
|
||||
update_rect->h = canvas->h;
|
||||
|
||||
}
|
||||
break;
|
||||
|
|
@ -420,8 +431,8 @@ void perspective_release(magic_api * api, int which,
|
|||
}
|
||||
|
||||
void perspective_preview(magic_api * api, int which ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * canvas, SDL_Surface * last ATTRIBUTE_UNUSED,
|
||||
int x ATTRIBUTE_UNUSED, int y ATTRIBUTE_UNUSED, SDL_Rect * update_rect, float step)
|
||||
SDL_Surface * canvas, SDL_Surface * last ATTRIBUTE_UNUSED,
|
||||
int x ATTRIBUTE_UNUSED, int y ATTRIBUTE_UNUSED, SDL_Rect * update_rect, float step)
|
||||
{
|
||||
float i, j;
|
||||
float ax, ay, bx, by, dx, dy;
|
||||
|
|
@ -437,7 +448,7 @@ void perspective_preview(magic_api * api, int which ATTRIBUTE_UNUSED,
|
|||
|
||||
ox_distance = otop_right_x - otop_left_x;
|
||||
oy_distance = obottom_left_y - otop_left_y;
|
||||
|
||||
|
||||
top_advc_x = (float)(top_right_x - top_left_x) / ox_distance;
|
||||
top_advc_y = (float)(top_right_y - top_left_y) / ox_distance;
|
||||
|
||||
|
|
@ -454,21 +465,21 @@ void perspective_preview(magic_api * api, int which ATTRIBUTE_UNUSED,
|
|||
center_ofset_x = (otop_left_x - top_left_x) * 2;
|
||||
center_ofset_y = (otop_left_y - top_left_y) * 2;
|
||||
|
||||
for(i = 0; i < canvas->w; i += step)
|
||||
for (i = 0; i < canvas->w; i += step)
|
||||
{
|
||||
ax = (float)top_advc_x * i;
|
||||
ay = (float)top_advc_y * i;
|
||||
bx = (float)bottom_advc_x * i + (bottom_left_x - top_left_x) * 2 ;
|
||||
by = (float)bottom_advc_y * i + (bottom_left_y - top_left_y) * 2;
|
||||
ax = (float)top_advc_x *i;
|
||||
ay = (float)top_advc_y *i;
|
||||
bx = (float)bottom_advc_x *i + (bottom_left_x - top_left_x) * 2;
|
||||
by = (float)bottom_advc_y *i + (bottom_left_y - top_left_y) * 2;
|
||||
|
||||
for(j = 0; j < canvas->h; j += step)
|
||||
{
|
||||
dx = (float)(bx - ax) / canvas->h * j;
|
||||
dy = (float)(by - ay)/ canvas->h * j;
|
||||
for (j = 0; j < canvas->h; j += step)
|
||||
{
|
||||
dx = (float)(bx - ax) / canvas->h * j;
|
||||
dy = (float)(by - ay) / canvas->h * j;
|
||||
|
||||
api->putpixel(canvas, ax + dx - center_ofset_x, ay + dy - center_ofset_y, api->getpixel(canvas_back, i, j));
|
||||
}
|
||||
}
|
||||
api->putpixel(canvas, ax + dx - center_ofset_x, ay + dy - center_ofset_y, api->getpixel(canvas_back, i, j));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// No setup happened:
|
||||
|
|
@ -476,11 +487,14 @@ void perspective_shutdown(magic_api * api ATTRIBUTE_UNUSED)
|
|||
{
|
||||
//Clean up sounds
|
||||
int i;
|
||||
for(i=0; i<perspective_NUM_TOOLS + 1; i++){
|
||||
if(perspective_snd_effect[i] != NULL){
|
||||
Mix_FreeChunk(perspective_snd_effect[i]);
|
||||
|
||||
for (i = 0; i < perspective_NUM_TOOLS + 1; i++)
|
||||
{
|
||||
if (perspective_snd_effect[i] != NULL)
|
||||
{
|
||||
Mix_FreeChunk(perspective_snd_effect[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Record the color from Tux Paint:
|
||||
|
|
@ -497,9 +511,11 @@ int perspective_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTR
|
|||
return 1;
|
||||
}
|
||||
|
||||
void perspective_switchin(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas)
|
||||
void perspective_switchin(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * canvas)
|
||||
{
|
||||
Uint32 amask;
|
||||
|
||||
new_w = canvas->w;
|
||||
new_h = canvas->h;
|
||||
|
||||
|
|
@ -513,36 +529,36 @@ void perspective_switchin(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_
|
|||
black = SDL_MapRGBA(canvas->format, 0, 0, 0, 0);
|
||||
white = SDL_MapRGBA(canvas->format, 255, 255, 255, 0);
|
||||
|
||||
amask = ~(canvas->format->Rmask |
|
||||
canvas->format->Gmask |
|
||||
canvas->format->Bmask);
|
||||
amask = ~(canvas->format->Rmask | canvas->format->Gmask | canvas->format->Bmask);
|
||||
|
||||
canvas_back = SDL_CreateRGBSurface(SDL_SWSURFACE,
|
||||
canvas->w,
|
||||
canvas->h,
|
||||
canvas->format->BitsPerPixel,
|
||||
canvas->format->Rmask,
|
||||
canvas->format->Gmask,
|
||||
canvas->format->Bmask, amask);
|
||||
canvas->w,
|
||||
canvas->h,
|
||||
canvas->format->BitsPerPixel,
|
||||
canvas->format->Rmask, canvas->format->Gmask, canvas->format->Bmask, amask);
|
||||
|
||||
SDL_BlitSurface(canvas, NULL, canvas_back, NULL);
|
||||
}
|
||||
|
||||
void perspective_switchout(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
|
||||
void perspective_switchout(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED,
|
||||
SDL_Surface * canvas ATTRIBUTE_UNUSED)
|
||||
{
|
||||
SDL_FreeSurface(canvas_back);
|
||||
}
|
||||
|
||||
int perspective_modes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
|
||||
{
|
||||
return(MODE_PAINT_WITH_PREVIEW);
|
||||
return (MODE_PAINT_WITH_PREVIEW);
|
||||
}
|
||||
|
||||
void perspective_line(void * ptr_to_api, int which ATTRIBUTE_UNUSED, SDL_Surface * canvas, SDL_Surface * snapshot ATTRIBUTE_UNUSED, int x, int y)
|
||||
void perspective_line(void *ptr_to_api, int which ATTRIBUTE_UNUSED, SDL_Surface * canvas,
|
||||
SDL_Surface * snapshot ATTRIBUTE_UNUSED, int x, int y)
|
||||
{
|
||||
magic_api * api = (magic_api *) ptr_to_api;
|
||||
magic_api *api = (magic_api *) ptr_to_api;
|
||||
|
||||
dash += 1;
|
||||
if (dash > 8) dash = 0;
|
||||
if (dash > 8)
|
||||
dash = 0;
|
||||
if (dash > 3)
|
||||
api->putpixel(canvas, x, y, black);
|
||||
else
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue