#ifndef _TCUSURFACE_HPP
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#define _TCUSURFACE_HPP
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/*-------------------------------------------------------------------------
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* drawElements Quality Program Tester Core
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* ----------------------------------------
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*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*//*!
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* \file
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* \brief RGBA8888 surface class.
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*//*--------------------------------------------------------------------*/
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#include "tcuDefs.hpp"
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#include "tcuRGBA.hpp"
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#include "tcuTexture.hpp"
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#include "deArrayBuffer.hpp"
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namespace tcu
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{
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/*--------------------------------------------------------------------*//*!
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* \brief RGBA8888 surface
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*
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* Surface provides basic pixel storage functionality. Only single format
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* (RGBA8888) is supported.
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*
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* PixelBufferAccess (see tcuTexture.h) provides much more flexible API
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* for handling various pixel formats. This is mainly a convinience class.
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*//*--------------------------------------------------------------------*/
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class Surface
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{
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public:
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Surface (void);
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Surface (int width, int height);
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~Surface (void);
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void setSize (int width, int height);
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int getWidth (void) const { return m_width; }
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int getHeight (void) const { return m_height; }
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void setPixel (int x, int y, RGBA col);
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RGBA getPixel (int x, int y) const;
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ConstPixelBufferAccess getAccess (void) const;
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PixelBufferAccess getAccess (void);
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private:
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// \note Copy constructor and assignment operators are public and auto-generated
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int m_width;
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int m_height;
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de::ArrayBuffer<deUint32> m_pixels;
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} DE_WARN_UNUSED_TYPE;
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inline void Surface::setPixel (int x, int y, RGBA col)
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{
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DE_ASSERT(de::inBounds(x, 0, m_width) && de::inBounds(y, 0, m_height));
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const int pixOffset = y*m_width + x;
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deUint32* pixAddr = m_pixels.getElementPtr(pixOffset);
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#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
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*pixAddr = col.getPacked();
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#else
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*((deUint8*)pixAddr + 0) = (deUint8)col.getRed();
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*((deUint8*)pixAddr + 1) = (deUint8)col.getGreen();
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*((deUint8*)pixAddr + 2) = (deUint8)col.getBlue();
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*((deUint8*)pixAddr + 3) = (deUint8)col.getAlpha();
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#endif
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}
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inline RGBA Surface::getPixel (int x, int y) const
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{
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DE_ASSERT(de::inBounds(x, 0, m_width) && de::inBounds(y, 0, m_height));
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const int pixOffset = y*m_width + x;
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const deUint32* pixAddr = m_pixels.getElementPtr(pixOffset);
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DE_STATIC_ASSERT(RGBA::RED_SHIFT == 0 && RGBA::GREEN_SHIFT == 8 && RGBA::BLUE_SHIFT == 16 && RGBA::ALPHA_SHIFT == 24);
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#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
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return RGBA(*pixAddr);
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#else
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const deUint8* byteAddr = (const deUint8*)pixAddr;
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return RGBA(byteAddr[0], byteAddr[1], byteAddr[2], byteAddr[3]);
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#endif
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}
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/** Get pixel buffer access from surface. */
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inline ConstPixelBufferAccess Surface::getAccess (void) const
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{
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return ConstPixelBufferAccess(TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8), m_width, m_height, 1, m_pixels.empty() ? DE_NULL : m_pixels.getPtr());
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}
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/** Get pixel buffer access from surface. */
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inline PixelBufferAccess Surface::getAccess (void)
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{
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return PixelBufferAccess(TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8), m_width, m_height, 1, m_pixels.empty() ? DE_NULL : m_pixels.getPtr());
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}
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} // tcu
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#endif // _TCUSURFACE_HPP
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