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Diffstat (limited to '')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/deqp/framework/opengl/gluPixelTransfer.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/deqp/framework/opengl/gluPixelTransfer.js b/dom/canvas/test/webgl-conf/checkout/deqp/framework/opengl/gluPixelTransfer.js new file mode 100644 index 0000000000..04b81a2a1a --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/deqp/framework/opengl/gluPixelTransfer.js @@ -0,0 +1,55 @@ +/*------------------------------------------------------------------------- + * drawElements Quality Program OpenGL ES Utilities + * ------------------------------------------------ + * + * Copyright 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +'use strict'; +goog.provide('framework.opengl.gluPixelTransfer'); +goog.require('framework.common.tcuTexture'); +goog.require('framework.delibs.debase.deMath'); +goog.require('framework.opengl.gluTextureUtil'); + +goog.scope(function() { + +var gluPixelTransfer = framework.opengl.gluPixelTransfer; +var tcuTexture = framework.common.tcuTexture; +var deMath = framework.delibs.debase.deMath; +var gluTextureUtil = framework.opengl.gluTextureUtil; + +gluPixelTransfer.getTransferAlignment = function(format) { + var pixelSize = format.getPixelSize(); + if (deMath.deIsPowerOfTwo32(pixelSize)) + return Math.min(pixelSize, 8); + else + return 1; +}; + +gluPixelTransfer.readPixels = function(ctx, x, y, format, dst) { + var width = dst.getWidth(); + var height = dst.getHeight(); + var arrayType = tcuTexture.getTypedArray(format.type); + var transferFormat = gluTextureUtil.getTransferFormat(format); + ctx.pixelStorei(ctx.PACK_ALIGNMENT, gluPixelTransfer.getTransferAlignment(format)); + var resultPixel = dst.getAccess().getDataPtr(); + resultPixel = new arrayType(dst.getAccess().getBuffer()); + ctx.readPixels(x, y, width, height, transferFormat.format, transferFormat.dataType, resultPixel); +}; + +/* TODO: implement other functions in C++ file */ + +}); |