| /* |
| * Copyright (C) 2009 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef WebGLTexture_h |
| #define WebGLTexture_h |
| |
| #include "bindings/v8/ScriptWrappable.h" |
| #include "core/html/canvas/WebGLSharedObject.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/Vector.h" |
| |
| namespace WebCore { |
| |
| class WebGLTexture : public WebGLSharedObject, public ScriptWrappable { |
| public: |
| enum TextureExtensionFlag { |
| NoTextureExtensionEnabled = 0, |
| TextureFloatLinearExtensionEnabled = 1 << 0, |
| TextureHalfFloatLinearExtensionEnabled = 1 << 1 |
| }; |
| virtual ~WebGLTexture(); |
| |
| static PassRefPtr<WebGLTexture> create(WebGLRenderingContext*); |
| |
| void setTarget(GC3Denum target, GC3Dint maxLevel); |
| void setParameteri(GC3Denum pname, GC3Dint param); |
| void setParameterf(GC3Denum pname, GC3Dfloat param); |
| |
| GC3Denum getTarget() const { return m_target; } |
| |
| int getMinFilter() const { return m_minFilter; } |
| |
| void setLevelInfo(GC3Denum target, GC3Dint level, GC3Denum internalFormat, GC3Dsizei width, GC3Dsizei height, GC3Denum type); |
| |
| bool canGenerateMipmaps(); |
| // Generate all level information. |
| void generateMipmapLevelInfo(); |
| |
| GC3Denum getInternalFormat(GC3Denum target, GC3Dint level) const; |
| GC3Denum getType(GC3Denum target, GC3Dint level) const; |
| GC3Dsizei getWidth(GC3Denum target, GC3Dint level) const; |
| GC3Dsizei getHeight(GC3Denum target, GC3Dint level) const; |
| bool isValid(GC3Denum target, GC3Dint level) const; |
| |
| // Whether width/height is NotPowerOfTwo. |
| static bool isNPOT(GC3Dsizei, GC3Dsizei); |
| |
| bool isNPOT() const; |
| // Determine if texture sampling should always return [0, 0, 0, 1] (OpenGL ES 2.0 Sec 3.8.2). |
| bool needToUseBlackTexture(TextureExtensionFlag) const; |
| |
| bool hasEverBeenBound() const { return object() && m_target; } |
| |
| static GC3Dint computeLevelCount(GC3Dsizei width, GC3Dsizei height); |
| |
| protected: |
| WebGLTexture(WebGLRenderingContext*); |
| |
| virtual void deleteObjectImpl(GraphicsContext3D*, Platform3DObject); |
| |
| private: |
| class LevelInfo { |
| public: |
| LevelInfo() |
| : valid(false) |
| , internalFormat(0) |
| , width(0) |
| , height(0) |
| , type(0) |
| { |
| } |
| |
| void setInfo(GC3Denum internalFmt, GC3Dsizei w, GC3Dsizei h, GC3Denum tp) |
| { |
| valid = true; |
| internalFormat = internalFmt; |
| width = w; |
| height = h; |
| type = tp; |
| } |
| |
| bool valid; |
| GC3Denum internalFormat; |
| GC3Dsizei width; |
| GC3Dsizei height; |
| GC3Denum type; |
| }; |
| |
| virtual bool isTexture() const { return true; } |
| |
| void update(); |
| |
| int mapTargetToIndex(GC3Denum) const; |
| |
| const LevelInfo* getLevelInfo(GC3Denum target, GC3Dint level) const; |
| |
| GC3Denum m_target; |
| |
| GC3Denum m_minFilter; |
| GC3Denum m_magFilter; |
| GC3Denum m_wrapS; |
| GC3Denum m_wrapT; |
| |
| Vector<Vector<LevelInfo> > m_info; |
| |
| bool m_isNPOT; |
| bool m_isCubeComplete; |
| bool m_isComplete; |
| bool m_needToUseBlackTexture; |
| bool m_isFloatType; |
| bool m_isHalfFloatType; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // WebGLTexture_h |