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Minor library_webgl.js cleanup. NFC #21457

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Merged
sbc100 merged 1 commit into from
Feb 29, 2024
Merged

Minor library_webgl.js cleanup. NFC #21457

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30 changes: 13 additions & 17 deletions src/library_webgl.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@
assert(MAX_WEBGL_VERSION >= 2, 'isCurrentContextWebGL2 called without webgl2 support');
if (MIN_WEBGL_VERSION >= 2) return 'true';
return 'GL.currentContext.version >= 2';
}
};
null;
}}}

Expand Down Expand Up @@ -1677,14 +1677,11 @@ for (/**@suppress{duplicate}*/var i = 0; i < {{{ GL_POOL_TEMP_BUFFERS_SIZE }}};
} else if (pixels) {
var heap = heapObjectForWebGLType(type);
GLctx.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, heap, toTypedArrayIndex(pixels, heap));
} else {
GLctx.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, null);
return;
}
return;
}
#endif
var pixelData = null;
if (pixels) pixelData = emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, 0);
var pixelData = pixels ? emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, 0) : null;
GLctx.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixelData);
},

Expand Down Expand Up @@ -1855,16 +1852,14 @@ for (/**@suppress{duplicate}*/var i = 0; i < {{{ GL_POOL_TEMP_BUFFERS_SIZE }}};
} else {
GLctx.bufferData(target, size, usage);
}
} else {
#endif
// N.b. here first form specifies a heap subarray, second form an integer
// size, so the ?: code here is polymorphic. It is advised to avoid
// randomly mixing both uses in calling code, to avoid any potential JS
// engine JIT issues.
GLctx.bufferData(target, data ? HEAPU8.subarray(data, data+size) : size, usage);
#if MAX_WEBGL_VERSION >= 2
return;
}
#endif
// N.b. here first form specifies a heap subarray, second form an integer
// size, so the ?: code here is polymorphic. It is advised to avoid
// randomly mixing both uses in calling code, to avoid any potential JS
// engine JIT issues.
GLctx.bufferData(target, data ? HEAPU8.subarray(data, data+size) : size, usage);
},

glBufferSubData: (target, offset, size, data) => {
Expand Down Expand Up @@ -3813,8 +3808,8 @@ for (/**@suppress{duplicate}*/var i = 0; i < {{{ GL_POOL_TEMP_BUFFERS_SIZE }}};
buf = GL.getTempIndexBuffer(size);
GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, buf);
GLctx.bufferSubData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/,
0,
HEAPU8.subarray(indices, indices + size));
0,
HEAPU8.subarray(indices, indices + size));
// the index is now 0
indices = 0;
}
Expand Down Expand Up @@ -4159,12 +4154,13 @@ for (/**@suppress{duplicate}*/var i = 0; i < {{{ GL_POOL_TEMP_BUFFERS_SIZE }}};
return 0;
}

if (!(mapping.access & 0x10)) /* GL_MAP_FLUSH_EXPLICIT_BIT */
if (!(mapping.access & 0x10)) { /* GL_MAP_FLUSH_EXPLICIT_BIT */
if ({{{ isCurrentContextWebGL2() }}}) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible.
GLctx.bufferSubData(target, mapping.offset, HEAPU8, mapping.mem, mapping.length);
} else {
GLctx.bufferSubData(target, mapping.offset, HEAPU8.subarray(mapping.mem, mapping.mem+mapping.length));
}
}
_free(mapping.mem);
mapping.mem = 0;
return 1;
Expand Down