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Diffstat (limited to '3rdparty/SDL2/src/video/emscripten/SDL_emscriptenframebuffer.c')
-rw-r--r--3rdparty/SDL2/src/video/emscripten/SDL_emscriptenframebuffer.c178
1 files changed, 0 insertions, 178 deletions
diff --git a/3rdparty/SDL2/src/video/emscripten/SDL_emscriptenframebuffer.c b/3rdparty/SDL2/src/video/emscripten/SDL_emscriptenframebuffer.c
deleted file mode 100644
index 8a6a465d94f..00000000000
--- a/3rdparty/SDL2/src/video/emscripten/SDL_emscriptenframebuffer.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "../../SDL_internal.h"
-
-#if SDL_VIDEO_DRIVER_EMSCRIPTEN
-
-#include "SDL_emscriptenvideo.h"
-#include "SDL_emscriptenframebuffer.h"
-
-
-int Emscripten_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
-{
- SDL_Surface *surface;
- const Uint32 surface_format = SDL_PIXELFORMAT_BGR888;
- int w, h;
- int bpp;
- Uint32 Rmask, Gmask, Bmask, Amask;
-
- /* Free the old framebuffer surface */
- SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
- surface = data->surface;
- SDL_FreeSurface(surface);
-
- /* Create a new one */
- SDL_PixelFormatEnumToMasks(surface_format, &bpp, &Rmask, &Gmask, &Bmask, &Amask);
- SDL_GetWindowSize(window, &w, &h);
-
- surface = SDL_CreateRGBSurface(0, w, h, bpp, Rmask, Gmask, Bmask, Amask);
- if (!surface) {
- return -1;
- }
-
- /* Save the info and return! */
- data->surface = surface;
- *format = surface_format;
- *pixels = surface->pixels;
- *pitch = surface->pitch;
- return 0;
-}
-
-int Emscripten_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects)
-{
- SDL_Surface *surface;
-
- SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
- surface = data->surface;
- if (!surface) {
- return SDL_SetError("Couldn't find framebuffer surface for window");
- }
-
- /* Send the data to the display */
-
- EM_ASM_INT({
- var w = $0;
- var h = $1;
- var pixels = $2;
-
- if (!Module['SDL2']) Module['SDL2'] = {};
- var SDL2 = Module['SDL2'];
- if (SDL2.ctxCanvas !== Module['canvas']) {
- SDL2.ctx = Module['createContext'](Module['canvas'], false, true);
- SDL2.ctxCanvas = Module['canvas'];
- }
- if (SDL2.w !== w || SDL2.h !== h || SDL2.imageCtx !== SDL2.ctx) {
- SDL2.image = SDL2.ctx.createImageData(w, h);
- SDL2.w = w;
- SDL2.h = h;
- SDL2.imageCtx = SDL2.ctx;
- }
- var data = SDL2.image.data;
- var src = pixels >> 2;
- var dst = 0;
- var num;
- if (typeof CanvasPixelArray !== 'undefined' && data instanceof CanvasPixelArray) {
- // IE10/IE11: ImageData objects are backed by the deprecated CanvasPixelArray,
- // not UInt8ClampedArray. These don't have buffers, so we need to revert
- // to copying a byte at a time. We do the undefined check because modern
- // browsers do not define CanvasPixelArray anymore.
- num = data.length;
- while (dst < num) {
- var val = HEAP32[src]; // This is optimized. Instead, we could do {{{ makeGetValue('buffer', 'dst', 'i32') }}};
- data[dst ] = val & 0xff;
- data[dst+1] = (val >> 8) & 0xff;
- data[dst+2] = (val >> 16) & 0xff;
- data[dst+3] = 0xff;
- src++;
- dst += 4;
- }
- } else {
- if (SDL2.data32Data !== data) {
- SDL2.data32 = new Int32Array(data.buffer);
- SDL2.data8 = new Uint8Array(data.buffer);
- }
- var data32 = SDL2.data32;
- num = data32.length;
- // logically we need to do
- // while (dst < num) {
- // data32[dst++] = HEAP32[src++] | 0xff000000
- // }
- // the following code is faster though, because
- // .set() is almost free - easily 10x faster due to
- // native memcpy efficiencies, and the remaining loop
- // just stores, not load + store, so it is faster
- data32.set(HEAP32.subarray(src, src + num));
- var data8 = SDL2.data8;
- var i = 3;
- var j = i + 4*num;
- if (num % 8 == 0) {
- // unrolling gives big speedups
- while (i < j) {
- data8[i] = 0xff;
- i = i + 4 | 0;
- data8[i] = 0xff;
- i = i + 4 | 0;
- data8[i] = 0xff;
- i = i + 4 | 0;
- data8[i] = 0xff;
- i = i + 4 | 0;
- data8[i] = 0xff;
- i = i + 4 | 0;
- data8[i] = 0xff;
- i = i + 4 | 0;
- data8[i] = 0xff;
- i = i + 4 | 0;
- data8[i] = 0xff;
- i = i + 4 | 0;
- }
- } else {
- while (i < j) {
- data8[i] = 0xff;
- i = i + 4 | 0;
- }
- }
- }
-
- SDL2.ctx.putImageData(SDL2.image, 0, 0);
- return 0;
- }, surface->w, surface->h, surface->pixels);
-
- /*if (SDL_getenv("SDL_VIDEO_Emscripten_SAVE_FRAMES")) {
- static int frame_number = 0;
- char file[128];
- SDL_snprintf(file, sizeof(file), "SDL_window%d-%8.8d.bmp",
- SDL_GetWindowID(window), ++frame_number);
- SDL_SaveBMP(surface, file);
- }*/
- return 0;
-}
-
-void Emscripten_DestroyWindowFramebuffer(_THIS, SDL_Window * window)
-{
- SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
-
- SDL_FreeSurface(data->surface);
- data->surface = NULL;
-}
-
-#endif /* SDL_VIDEO_DRIVER_EMSCRIPTEN */
-
-/* vi: set ts=4 sw=4 expandtab: */