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295f920116
I wrote a script to do this which is attached to the bug. TBR=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/736373003
140 lines
4.5 KiB
C++
140 lines
4.5 KiB
C++
/*
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* Copyright (C) 2009 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_HTML_CANVAS_WEBGLTEXTURE_H_
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#define SKY_ENGINE_CORE_HTML_CANVAS_WEBGLTEXTURE_H_
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#include "sky/engine/bindings/core/v8/ScriptWrappable.h"
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#include "sky/engine/core/html/canvas/WebGLSharedObject.h"
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#include "sky/engine/wtf/PassRefPtr.h"
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#include "sky/engine/wtf/Vector.h"
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namespace blink {
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class WebGLTexture final : public WebGLSharedObject, public ScriptWrappable {
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DEFINE_WRAPPERTYPEINFO();
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public:
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enum TextureExtensionFlag {
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NoTextureExtensionEnabled = 0,
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TextureFloatLinearExtensionEnabled = 1 << 0,
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TextureHalfFloatLinearExtensionEnabled = 1 << 1
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};
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virtual ~WebGLTexture();
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static PassRefPtr<WebGLTexture> create(WebGLRenderingContextBase*);
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void setTarget(GLenum target, GLint maxLevel);
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void setParameteri(GLenum pname, GLint param);
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void setParameterf(GLenum pname, GLfloat param);
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GLenum getTarget() const { return m_target; }
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int getMinFilter() const { return m_minFilter; }
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void setLevelInfo(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLenum type);
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bool canGenerateMipmaps();
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// Generate all level information.
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void generateMipmapLevelInfo();
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GLenum getInternalFormat(GLenum target, GLint level) const;
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GLenum getType(GLenum target, GLint level) const;
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GLsizei getWidth(GLenum target, GLint level) const;
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GLsizei getHeight(GLenum target, GLint level) const;
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bool isValid(GLenum target, GLint level) const;
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// Whether width/height is NotPowerOfTwo.
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static bool isNPOT(GLsizei, GLsizei);
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bool isNPOT() const;
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// Determine if texture sampling should always return [0, 0, 0, 1] (OpenGL ES 2.0 Sec 3.8.2).
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bool needToUseBlackTexture(TextureExtensionFlag) const;
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bool hasEverBeenBound() const { return object() && m_target; }
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static GLint computeLevelCount(GLsizei width, GLsizei height);
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protected:
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explicit WebGLTexture(WebGLRenderingContextBase*);
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virtual void deleteObjectImpl(blink::WebGraphicsContext3D*, Platform3DObject) override;
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private:
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class LevelInfo {
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public:
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LevelInfo()
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: valid(false)
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, internalFormat(0)
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, width(0)
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, height(0)
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, type(0)
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{
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}
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void setInfo(GLenum internalFmt, GLsizei w, GLsizei h, GLenum tp)
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{
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valid = true;
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internalFormat = internalFmt;
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width = w;
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height = h;
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type = tp;
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}
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bool valid;
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GLenum internalFormat;
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GLsizei width;
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GLsizei height;
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GLenum type;
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};
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virtual bool isTexture() const override { return true; }
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void update();
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int mapTargetToIndex(GLenum) const;
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const LevelInfo* getLevelInfo(GLenum target, GLint level) const;
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GLenum m_target;
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GLenum m_minFilter;
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GLenum m_magFilter;
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GLenum m_wrapS;
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GLenum m_wrapT;
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Vector<Vector<LevelInfo> > m_info;
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bool m_isNPOT;
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bool m_isCubeComplete;
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bool m_isComplete;
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bool m_needToUseBlackTexture;
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bool m_isFloatType;
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bool m_isHalfFloatType;
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};
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} // namespace blink
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#endif // SKY_ENGINE_CORE_HTML_CANVAS_WEBGLTEXTURE_H_
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