diff options
Diffstat (limited to 'src/library_gl.js')
| -rw-r--r-- | src/library_gl.js | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/library_gl.js b/src/library_gl.js index 1ea8efc2..cfdd800d 100644 --- a/src/library_gl.js +++ b/src/library_gl.js @@ -42,6 +42,8 @@ var LibraryGL = { uniformTable: {}, // name => uniform ID. the uID must be identical until relinking, cannot create a new uID each call to glGetUniformLocation + stringCache: {}, + packAlignment: 4, // default alignment is 4 bytes unpackAlignment: 4, // default alignment is 4 bytes @@ -497,11 +499,13 @@ var LibraryGL = { glGetString__sig: 'ii', glGetString: function(name_) { + if (GL.stringCache[name_]) return GL.stringCache[name_]; + var ret; switch(name_) { case 0x1F00 /* GL_VENDOR */: case 0x1F01 /* GL_RENDERER */: case 0x1F02 /* GL_VERSION */: - return allocate(intArrayFromString(Module.ctx.getParameter(name_)), 'i8', ALLOC_NORMAL); + ret = allocate(intArrayFromString(Module.ctx.getParameter(name_)), 'i8', ALLOC_NORMAL); case 0x1F03 /* GL_EXTENSIONS */: var exts = Module.ctx.getSupportedExtensions(); var gl_exts = []; @@ -509,12 +513,14 @@ var LibraryGL = { gl_exts.push(exts[i]); gl_exts.push("GL_" + exts[i]); } - return allocate(intArrayFromString(gl_exts.join(' ')), 'i8', ALLOC_NORMAL); // XXX this leaks! TODO: Cache all results like this in library_gl.js to be clean and nice and avoid leaking. + ret = allocate(intArrayFromString(gl_exts.join(' ')), 'i8', ALLOC_NORMAL); case 0x8B8C /* GL_SHADING_LANGUAGE_VERSION */: - return allocate(intArrayFromString('OpenGL ES GLSL 1.00 (WebGL)'), 'i8', ALLOC_NORMAL); + ret = allocate(intArrayFromString('OpenGL ES GLSL 1.00 (WebGL)'), 'i8', ALLOC_NORMAL); default: throw 'Failure: Invalid glGetString value: ' + name_; } + GL.stringCache[name_] = ret; + return ret; }, glGetIntegerv__sig: 'vii', |