1 #ifndef _TCUSURFACE_HPP 2 #define _TCUSURFACE_HPP 3 /*------------------------------------------------------------------------- 4 * drawElements Quality Program Tester Core 5 * ---------------------------------------- 6 * 7 * Copyright 2014 The Android Open Source Project 8 * 9 * Licensed under the Apache License, Version 2.0 (the "License"); 10 * you may not use this file except in compliance with the License. 11 * You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 * 21 *//*! 22 * \file 23 * \brief RGBA8888 surface class. 24 *//*--------------------------------------------------------------------*/ 25 26 #include "tcuDefs.hpp" 27 #include "tcuRGBA.hpp" 28 #include "tcuTexture.hpp" 29 30 #include "deArrayBuffer.hpp" 31 32 namespace tcu 33 { 34 35 /*--------------------------------------------------------------------*//*! 36 * \brief RGBA8888 surface 37 * 38 * Surface provides basic pixel storage functionality. Only single format 39 * (RGBA8888) is supported. 40 * 41 * PixelBufferAccess (see tcuTexture.h) provides much more flexible API 42 * for handling various pixel formats. This is mainly a convinience class. 43 *//*--------------------------------------------------------------------*/ 44 class Surface 45 { 46 public: 47 Surface (void); 48 Surface (int width, int height); 49 ~Surface (void); 50 51 void setSize (int width, int height); 52 53 int getWidth (void) const { return m_width; } 54 int getHeight (void) const { return m_height; } 55 56 void setPixel (int x, int y, RGBA col); 57 RGBA getPixel (int x, int y) const; 58 59 ConstPixelBufferAccess getAccess (void) const; 60 PixelBufferAccess getAccess (void); 61 62 private: 63 // \note Copy constructor and assignment operators are public and auto-generated 64 65 int m_width; 66 int m_height; 67 de::ArrayBuffer<deUint32> m_pixels; 68 } DE_WARN_UNUSED_TYPE; 69 70 inline void Surface::setPixel (int x, int y, RGBA col) 71 { 72 DE_ASSERT(de::inBounds(x, 0, m_width) && de::inBounds(y, 0, m_height)); 73 74 const int pixOffset = y*m_width + x; 75 deUint32* pixAddr = m_pixels.getElementPtr(pixOffset); 76 77 #if (DE_ENDIANNESS == DE_LITTLE_ENDIAN) 78 *pixAddr = col.getPacked(); 79 #else 80 *((deUint8*)pixAddr + 0) = (deUint8)col.getRed(); 81 *((deUint8*)pixAddr + 1) = (deUint8)col.getGreen(); 82 *((deUint8*)pixAddr + 2) = (deUint8)col.getBlue(); 83 *((deUint8*)pixAddr + 3) = (deUint8)col.getAlpha(); 84 #endif 85 } 86 87 inline RGBA Surface::getPixel (int x, int y) const 88 { 89 DE_ASSERT(de::inBounds(x, 0, m_width) && de::inBounds(y, 0, m_height)); 90 91 const int pixOffset = y*m_width + x; 92 const deUint32* pixAddr = m_pixels.getElementPtr(pixOffset); 93 94 DE_STATIC_ASSERT(RGBA::RED_SHIFT == 0 && RGBA::GREEN_SHIFT == 8 && RGBA::BLUE_SHIFT == 16 && RGBA::ALPHA_SHIFT == 24); 95 96 #if (DE_ENDIANNESS == DE_LITTLE_ENDIAN) 97 return RGBA(*pixAddr); 98 #else 99 const deUint8* byteAddr = (const deUint8*)pixAddr; 100 return RGBA(byteAddr[0], byteAddr[1], byteAddr[2], byteAddr[3]); 101 #endif 102 } 103 104 /** Get pixel buffer access from surface. */ 105 inline ConstPixelBufferAccess Surface::getAccess (void) const 106 { 107 return ConstPixelBufferAccess(TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8), m_width, m_height, 1, m_pixels.empty() ? DE_NULL : m_pixels.getPtr()); 108 } 109 110 /** Get pixel buffer access from surface. */ 111 inline PixelBufferAccess Surface::getAccess (void) 112 { 113 return PixelBufferAccess(TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8), m_width, m_height, 1, m_pixels.empty() ? DE_NULL : m_pixels.getPtr()); 114 } 115 116 } // tcu 117 118 #endif // _TCUSURFACE_HPP 119
