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-rw-r--r--src/library_gl.js14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/library_gl.js b/src/library_gl.js
index 5184f4fd..16ea5531 100644
--- a/src/library_gl.js
+++ b/src/library_gl.js
@@ -657,6 +657,20 @@ var LibraryGL = {
glBufferData__sig: 'viiii',
glBufferData: function(target, size, data, usage) {
+ switch (usage) { // fix usages, WebGL only has *_DRAW
+ case 0x88E1: // GL_STREAM_READ
+ case 0x88E2: // GL_STREAM_COPY
+ usage = 0x88E0; // GL_STREAM_DRAW
+ break;
+ case 0x88E5: // GL_STATIC_READ
+ case 0x88E6: // GL_STATIC_COPY
+ usage = 0x88E4; // GL_STATIC_DRAW
+ break;
+ case 0x88E9: // GL_DYNAMIC_READ
+ case 0x88EA: // GL_DYNAMIC_COPY
+ usage = 0x88E8; // GL_DYNAMIC_DRAW
+ break;
+ }
Module.ctx.bufferData(target, HEAPU8.subarray(data, data+size), usage);
},