geemili
/
SDL
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

emscripten: drop CanvasPixelArray support from cursor

main
Charlie Birks 2022-09-30 16:33:10 +01:00 committed by GitHub
parent 0c6d5b3ac8
commit 90e7d05c3b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/video/emscripten/SDL_emscriptenmouse.c
View File

@ -92,28 +92,9 @@ Emscripten_CreateCursor(SDL_Surface* surface, int hot_x, int hot_y)
var image = ctx.createImageData(w, h);
var data = 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] = (val >> 24) & 0xff;
src++;
dst += 4;
}
} else {
var data32 = new Int32Array(data.buffer);
num = data32.length;
data32.set(HEAP32.subarray(src, src + num));
}
data32.set(HEAP32.subarray(src, src + data32.length));
ctx.putImageData(image, 0, 0);
var url = hot_x === 0 && hot_y === 0