21 #include "../../SDL_internal.h" 23 #if SDL_VIDEO_DRIVER_EMSCRIPTEN 35 Uint32 Rmask, Gmask, Bmask, Amask;
53 *format = surface_format;
55 *pitch = surface->
pitch;
66 return SDL_SetError(
"Couldn't find framebuffer surface for window");
76 if (!Module[
'SDL2']) Module[
'SDL2'] = {};
77 var SDL2 = Module[
'SDL2'];
78 if (SDL2.ctxCanvas !== Module[
'canvas']) {
79 SDL2.ctx = Module[
'createContext'](Module[
'canvas'], false, true);
80 SDL2.ctxCanvas = Module[
'canvas'];
82 if (SDL2.w !== w || SDL2.h !== h || SDL2.imageCtx !== SDL2.ctx) {
83 SDL2.image = SDL2.ctx.createImageData(w, h);
86 SDL2.imageCtx = SDL2.ctx;
88 var data = SDL2.image.data;
89 var
src = pixels >> 2;
92 if (typeof CanvasPixelArray !==
'undefined' && data instanceof CanvasPixelArray) {
100 data[
dst ] = val & 0xff;
101 data[
dst+1] = (val >> 8) & 0xff;
102 data[
dst+2] = (val >> 16) & 0xff;
108 if (SDL2.data32Data !== data) {
109 SDL2.data32 =
new Int32Array(data.buffer);
110 SDL2.data8 =
new Uint8Array(data.buffer);
112 var data32 = SDL2.data32;
122 data32.set(HEAP32.subarray(
src,
src +
num));
123 var data8 = SDL2.data8;
154 SDL2.ctx.putImageData(SDL2.image, 0, 0);
156 }, surface->
w, surface->
h, surface->
pixels);
GLfloat GLfloat GLfloat GLfloat h
A collection of pixels used in software blitting.
set set set set set set set macro pixldst1 abits if abits op else op endif endm macro pixldst2 abits if abits op else op endif endm macro pixldst4 abits if abits op else op endif endm macro pixldst0 abits op endm macro pixldst3 mem_operand op endm macro pixldst30 mem_operand op endm macro pixldst abits if abits elseif abits elseif abits elseif abits elseif abits pixldst0 abits else pixldst0 abits pixldst0 abits pixldst0 abits pixldst0 abits endif elseif abits else pixldst0 abits pixldst0 abits endif elseif abits else error unsupported bpp *numpix else pixst endif endm macro pixld1_s mem_operand if asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl elseif asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl else error unsupported endif endm macro pixld2_s mem_operand if mov asr add asl add asl mov asr sub UNIT_X add asl mov asr add asl add asl mov asr add UNIT_X add asl else pixld1_s mem_operand pixld1_s mem_operand endif endm macro pixld0_s mem_operand if asr adds SRC_WIDTH_FIXED bpl add asl elseif asr adds SRC_WIDTH_FIXED bpl add asl endif endm macro pixld_s_internal mem_operand if mem_operand pixld2_s mem_operand pixdeinterleave basereg elseif mem_operand elseif mem_operand elseif mem_operand elseif mem_operand pixld0_s mem_operand else pixld0_s mem_operand pixld0_s mem_operand pixld0_s mem_operand pixld0_s mem_operand endif elseif mem_operand else pixld0_s mem_operand pixld0_s mem_operand endif elseif mem_operand else error unsupported mem_operand if bpp mem_operand endif endm macro vuzp8 reg2 vuzp d d ®2 endm macro vzip8 reg2 vzip d d ®2 endm macro pixdeinterleave basereg basereg basereg basereg basereg endif endm macro pixinterleave basereg basereg basereg basereg basereg endif endm macro PF boost_increment endif if endif PF tst PF addne PF subne PF cmp ORIG_W if endif if endif if endif PF subge ORIG_W PF subges if endif if endif if endif endif endm macro cache_preload_simple endif if dst_r_bpp pld [DST_R, #(PREFETCH_DISTANCE_SIMPLE *dst_r_bpp/8)] endif if mask_bpp pld if[MASK, #(PREFETCH_DISTANCE_SIMPLE *mask_bpp/8)] endif endif endm macro fetch_mask_pixblock pixld mask_basereg pixblock_size MASK endm macro ensure_destination_ptr_alignment process_pixblock_tail_head if beq irp local skip1(dst_w_bpp<=(lowbit *8)) &&((lowbit *8)<(pixblock_size *dst_w_bpp)) .if lowbit< 16 tst DST_R
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
set set set set set set set macro pixldst1 abits if abits op else op endif endm macro pixldst2 abits if abits op else op endif endm macro pixldst4 abits if abits op else op endif endm macro pixldst0 abits op endm macro pixldst3 mem_operand op endm macro pixldst30 mem_operand op endm macro pixldst abits if abits elseif abits elseif abits elseif abits elseif abits pixldst0 abits else pixldst0 abits pixldst0 abits pixldst0 abits pixldst0 abits endif elseif abits else pixldst0 abits pixldst0 abits endif elseif abits else error unsupported bpp
void Emscripten_DestroyWindowFramebuffer(_THIS, SDL_Window *window)
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
#define SDL_GetWindowSize
int Emscripten_CreateWindowFramebuffer(_THIS, SDL_Window *window, Uint32 *format, void **pixels, int *pitch)
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 int in j)
GLubyte GLubyte GLubyte GLubyte w
#define SDL_PixelFormatEnumToMasks
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
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)
#define SDL_CreateRGBSurface
EGLSurface EGLNativeWindowType * window
The type used to identify a window.
EGLSurface EGLint * rects
int Emscripten_UpdateWindowFramebuffer(_THIS, SDL_Window *window, const SDL_Rect *rects, int numrects)
A rectangle, with the origin at the upper left.