1 #ifndef _TCUCOMPRESSEDTEXTURE_HPP 2 #define _TCUCOMPRESSEDTEXTURE_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 Compressed Texture Utilities. 24 *//*--------------------------------------------------------------------*/ 25 26 #include "tcuDefs.hpp" 27 #include "tcuTexture.hpp" 28 29 #include <vector> 30 31 namespace tcu 32 { 33 34 /*--------------------------------------------------------------------*//*! 35 * \brief Compressed texture 36 * 37 * This class implements container for common compressed texture formats. 38 * Reference decoding to uncompressed formats is supported. 39 *//*--------------------------------------------------------------------*/ 40 class CompressedTexture 41 { 42 public: 43 enum Format 44 { 45 ETC1_RGB8 = 0, 46 EAC_R11, 47 EAC_SIGNED_R11, 48 EAC_RG11, 49 EAC_SIGNED_RG11, 50 ETC2_RGB8, 51 ETC2_SRGB8, 52 ETC2_RGB8_PUNCHTHROUGH_ALPHA1, 53 ETC2_SRGB8_PUNCHTHROUGH_ALPHA1, 54 ETC2_EAC_RGBA8, 55 ETC2_EAC_SRGB8_ALPHA8, 56 57 ASTC_4x4_RGBA, 58 ASTC_5x4_RGBA, 59 ASTC_5x5_RGBA, 60 ASTC_6x5_RGBA, 61 ASTC_6x6_RGBA, 62 ASTC_8x5_RGBA, 63 ASTC_8x6_RGBA, 64 ASTC_8x8_RGBA, 65 ASTC_10x5_RGBA, 66 ASTC_10x6_RGBA, 67 ASTC_10x8_RGBA, 68 ASTC_10x10_RGBA, 69 ASTC_12x10_RGBA, 70 ASTC_12x12_RGBA, 71 ASTC_4x4_SRGB8_ALPHA8, 72 ASTC_5x4_SRGB8_ALPHA8, 73 ASTC_5x5_SRGB8_ALPHA8, 74 ASTC_6x5_SRGB8_ALPHA8, 75 ASTC_6x6_SRGB8_ALPHA8, 76 ASTC_8x5_SRGB8_ALPHA8, 77 ASTC_8x6_SRGB8_ALPHA8, 78 ASTC_8x8_SRGB8_ALPHA8, 79 ASTC_10x5_SRGB8_ALPHA8, 80 ASTC_10x6_SRGB8_ALPHA8, 81 ASTC_10x8_SRGB8_ALPHA8, 82 ASTC_10x10_SRGB8_ALPHA8, 83 ASTC_12x10_SRGB8_ALPHA8, 84 ASTC_12x12_SRGB8_ALPHA8, 85 86 FORMAT_LAST 87 }; 88 89 struct DecompressionParams 90 { 91 bool isASTCModeLDR; //!< \note Ignored if not ASTC format. 92 DecompressionParamstcu::CompressedTexture::DecompressionParams93 DecompressionParams (bool isASTCModeLDR_) : isASTCModeLDR(isASTCModeLDR_) {} 94 }; 95 96 97 CompressedTexture (Format format, int width, int height, int depth = 1); 98 CompressedTexture (void); 99 ~CompressedTexture (void); 100 101 void setStorage (Format format, int width, int height, int depth = 1); 102 getWidth(void) const103 int getWidth (void) const { return m_width; } getHeight(void) const104 int getHeight (void) const { return m_height; } getFormat(void) const105 Format getFormat (void) const { return m_format; } getDataSize(void) const106 int getDataSize (void) const { return (int)m_data.size(); } getData(void) const107 const void* getData (void) const { return &m_data[0]; } getData(void)108 void* getData (void) { return &m_data[0]; } 109 110 TextureFormat getUncompressedFormat (void) const; 111 void decompress (const PixelBufferAccess& dst, const DecompressionParams& params = DecompressionParams(false)) const; 112 113 private: 114 Format m_format; 115 int m_width; 116 int m_height; 117 int m_depth; 118 std::vector<deUint8> m_data; 119 }; 120 121 bool isEtcFormat (CompressedTexture::Format fmt); 122 bool isASTCFormat (CompressedTexture::Format fmt); 123 bool isASTCSRGBFormat (CompressedTexture::Format fmt); 124 125 IVec3 getASTCBlockSize (CompressedTexture::Format fmt); 126 CompressedTexture::Format getASTCFormatByBlockSize (int width, int height, int depth, bool isSRGB); 127 128 } // tcu 129 130 #endif // _TCUCOMPRESSEDTEXTURE_HPP 131