SDL 2.0
SDL_blendfillrect.h File Reference
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Functions

int SDL_BlendFillRect (SDL_Surface *dst, const SDL_Rect *rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
 
int SDL_BlendFillRects (SDL_Surface *dst, const SDL_Rect *rects, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
 

Function Documentation

◆ SDL_BlendFillRect()

int SDL_BlendFillRect ( SDL_Surface dst,
const SDL_Rect rect,
SDL_BlendMode  blendMode,
Uint8  r,
Uint8  g,
Uint8  b,
Uint8  a 
)

Definition at line 196 of file SDL_blendfillrect.c.

198{
199 SDL_Rect clipped;
200
201 if (!dst) {
202 return SDL_SetError("Passed NULL destination surface");
203 }
204
205 /* This function doesn't work on surfaces < 8 bpp */
206 if (dst->format->BitsPerPixel < 8) {
207 return SDL_SetError("SDL_BlendFillRect(): Unsupported surface format");
208 }
209
210 /* If 'rect' == NULL, then fill the whole surface */
211 if (rect) {
212 /* Perform clipping */
213 if (!SDL_IntersectRect(rect, &dst->clip_rect, &clipped)) {
214 return 0;
215 }
216 rect = &clipped;
217 } else {
218 rect = &dst->clip_rect;
219 }
220
222 r = DRAW_MUL(r, a);
223 g = DRAW_MUL(g, a);
224 b = DRAW_MUL(b, a);
225 }
226
227 switch (dst->format->BitsPerPixel) {
228 case 15:
229 switch (dst->format->Rmask) {
230 case 0x7C00:
232 }
233 break;
234 case 16:
235 switch (dst->format->Rmask) {
236 case 0xF800:
238 }
239 break;
240 case 32:
241 switch (dst->format->Rmask) {
242 case 0x00FF0000:
243 if (!dst->format->Amask) {
245 } else {
247 }
248 /* break; -Wunreachable-code-break */
249 }
250 break;
251 default:
252 break;
253 }
254
255 if (!dst->format->Amask) {
257 } else {
259 }
260}
static int SDL_BlendFillRect_RGB565(SDL_Surface *dst, const SDL_Rect *rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
static int SDL_BlendFillRect_RGB555(SDL_Surface *dst, const SDL_Rect *rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
static int SDL_BlendFillRect_RGB(SDL_Surface *dst, const SDL_Rect *rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
static int SDL_BlendFillRect_RGB888(SDL_Surface *dst, const SDL_Rect *rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
static int SDL_BlendFillRect_ARGB8888(SDL_Surface *dst, const SDL_Rect *rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
static int SDL_BlendFillRect_RGBA(SDL_Surface *dst, const SDL_Rect *rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
@ SDL_BLENDMODE_ADD
Definition: SDL_blendmode.h:47
@ SDL_BLENDMODE_BLEND
Definition: SDL_blendmode.h:44
#define DRAW_MUL(_a, _b)
Definition: SDL_draw.h:29
#define SDL_SetError
#define SDL_IntersectRect
GLdouble GLdouble GLdouble r
Definition: SDL_opengl.h:2079
GLboolean GLboolean GLboolean b
GLboolean GLboolean GLboolean GLboolean a
GLenum GLenum dst
GLboolean GLboolean g
A rectangle, with the origin at the upper left (integer).
Definition: SDL_rect.h:78
static SDL_BlendMode blendMode
Definition: testdraw2.c:34
SDL_Rect rect
Definition: testrelative.c:27

References blendMode, DRAW_MUL, rect, SDL_BlendFillRect_ARGB8888(), SDL_BlendFillRect_RGB(), SDL_BlendFillRect_RGB555(), SDL_BlendFillRect_RGB565(), SDL_BlendFillRect_RGB888(), SDL_BlendFillRect_RGBA(), SDL_BLENDMODE_ADD, SDL_BLENDMODE_BLEND, SDL_IntersectRect, and SDL_SetError.

◆ SDL_BlendFillRects()

int SDL_BlendFillRects ( SDL_Surface dst,
const SDL_Rect rects,
int  count,
SDL_BlendMode  blendMode,
Uint8  r,
Uint8  g,
Uint8  b,
Uint8  a 
)

Definition at line 263 of file SDL_blendfillrect.c.

265{
267 int i;
268 int (*func)(SDL_Surface * dst, const SDL_Rect * rect,
270 int status = 0;
271
272 if (!dst) {
273 return SDL_SetError("Passed NULL destination surface");
274 }
275
276 /* This function doesn't work on surfaces < 8 bpp */
277 if (dst->format->BitsPerPixel < 8) {
278 return SDL_SetError("SDL_BlendFillRects(): Unsupported surface format");
279 }
280
282 r = DRAW_MUL(r, a);
283 g = DRAW_MUL(g, a);
284 b = DRAW_MUL(b, a);
285 }
286
287 /* FIXME: Does this function pointer slow things down significantly? */
288 switch (dst->format->BitsPerPixel) {
289 case 15:
290 switch (dst->format->Rmask) {
291 case 0x7C00:
293 }
294 break;
295 case 16:
296 switch (dst->format->Rmask) {
297 case 0xF800:
299 }
300 break;
301 case 32:
302 switch (dst->format->Rmask) {
303 case 0x00FF0000:
304 if (!dst->format->Amask) {
306 } else {
308 }
309 break;
310 }
311 break;
312 default:
313 break;
314 }
315
316 if (!func) {
317 if (!dst->format->Amask) {
319 } else {
321 }
322 }
323
324 for (i = 0; i < count; ++i) {
325 /* Perform clipping */
326 if (!SDL_IntersectRect(&rects[i], &dst->clip_rect, &rect)) {
327 continue;
328 }
329 status = func(dst, &rect, blendMode, r, g, b, a);
330 }
331 return status;
332}
SDL_BlendMode
The blend mode used in SDL_RenderCopy() and drawing operations.
Definition: SDL_blendmode.h:41
GLuint GLuint GLsizei count
Definition: SDL_opengl.h:1571
GLenum func
uint8_t Uint8
Definition: SDL_stdinc.h:179
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:167
EGLSurface EGLint * rects
Definition: eglext.h:282
A collection of pixels used in software blitting.
Definition: SDL_surface.h:71

References blendMode, DRAW_MUL, i, NULL, rect, SDL_BlendFillRect_ARGB8888(), SDL_BlendFillRect_RGB(), SDL_BlendFillRect_RGB555(), SDL_BlendFillRect_RGB565(), SDL_BlendFillRect_RGB888(), SDL_BlendFillRect_RGBA(), SDL_BLENDMODE_ADD, SDL_BLENDMODE_BLEND, SDL_IntersectRect, and SDL_SetError.

Referenced by SW_RunCommandQueue().