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-rw-r--r--3rdparty/bgfx/examples/common/image.cpp412
1 files changed, 0 insertions, 412 deletions
diff --git a/3rdparty/bgfx/examples/common/image.cpp b/3rdparty/bgfx/examples/common/image.cpp
deleted file mode 100644
index 11163f768d7..00000000000
--- a/3rdparty/bgfx/examples/common/image.cpp
+++ /dev/null
@@ -1,412 +0,0 @@
-/*
- * Copyright 2011-2017 Branimir Karadzic. All rights reserved.
- * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
- */
-
-#include "entry/dbg.h"
-
-#include <bgfx/bgfx.h>
-#include <bx/allocator.h>
-#include <bx/endian.h>
-#include <bx/readerwriter.h>
-#include "bgfx_utils.h"
-
-BX_PRAGMA_DIAGNOSTIC_PUSH()
-BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wtype-limits")
-BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wunused-parameter")
-BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wunused-value")
-BX_PRAGMA_DIAGNOSTIC_IGNORED_MSVC(4100) // error C4100: '' : unreferenced formal parameter
-#if BX_PLATFORM_EMSCRIPTEN
-# include <compat/ctype.h>
-#endif // BX_PLATFORM_EMSCRIPTEN
-#define MINIZ_NO_STDIO
-#define TINYEXR_IMPLEMENTATION
-#include <tinyexr/tinyexr.h>
-BX_PRAGMA_DIAGNOSTIC_POP()
-
-#define LODEPNG_NO_COMPILE_ENCODER
-#define LODEPNG_NO_COMPILE_DISK
-#define LODEPNG_NO_COMPILE_ANCILLARY_CHUNKS
-#define LODEPNG_NO_COMPILE_ERROR_TEXT
-#define LODEPNG_NO_COMPILE_ALLOCATORS
-#define LODEPNG_NO_COMPILE_CPP
-#include <lodepng/lodepng.h>
-
-typedef unsigned char stbi_uc;
-extern "C" int stbi_is_hdr_from_memory(stbi_uc const* _buffer, int _len);
-extern "C" stbi_uc* stbi_load_from_memory(stbi_uc const* _buffer, int _len, int* _x, int* _y, int* _comp, int _req_comp);
-extern "C" float* stbi_loadf_from_memory(stbi_uc const* _buffer, int _len, int* _x, int* _y, int* _comp, int _req_comp);
-extern "C" void stbi_image_free(void* _ptr);
-extern void lodepng_free(void* _ptr);
-
-namespace bgfx
-{
- struct ImageMip
- {
- TextureFormat::Enum m_format;
- uint32_t m_width;
- uint32_t m_height;
- uint32_t m_blockSize;
- uint32_t m_size;
- uint8_t m_bpp;
- bool m_hasAlpha;
- const uint8_t* m_data;
- };
-
- uint32_t imageGetSize(
- TextureInfo* _info
- , uint16_t _width
- , uint16_t _height
- , uint16_t _depth
- , bool _cubeMap
- , bool _hasMips
- , uint16_t _numLayers
- , TextureFormat::Enum _format
- );
-
- ///
- ImageContainer* imageParseBgfx(bx::AllocatorI* _allocator, const void* _src, uint32_t _size);
-
- ///
- bool imageConvert(
- void* _dst
- , TextureFormat::Enum _dstFormat
- , const void* _src
- , TextureFormat::Enum _srcFormat
- , uint32_t _width
- , uint32_t _height
- );
-
- ///
- ImageContainer* imageConvert(
- bx::AllocatorI* _allocator
- , TextureFormat::Enum _dstFormat
- , const ImageContainer& _input
- );
-
-} // namespace bgfx
-
-namespace bgfx
-{
- static ImageContainer* imageParseLodePng(bx::AllocatorI* _allocator, const void* _data, uint32_t _size)
- {
- static uint8_t pngMagic[] = { 0x89, 0x50, 0x4E, 0x47, 0x0d, 0x0a };
-
- if (0 != bx::memCmp(_data, pngMagic, sizeof(pngMagic) ) )
- {
- return NULL;
- }
-
- ImageContainer* output = NULL;
- bgfx::TextureFormat::Enum format = bgfx::TextureFormat::RGBA8;
- uint32_t width = 0;
- uint32_t height = 0;
-
- unsigned error;
- LodePNGState state;
- lodepng_state_init(&state);
- state.decoder.color_convert = 0;
-
- uint8_t* data = NULL;
- error = lodepng_decode(&data, &width, &height, &state, (uint8_t*)_data, _size);
-
- if (0 == error)
- {
- switch (state.info_raw.bitdepth)
- {
- case 8:
- switch (state.info_raw.colortype)
- {
- case LCT_GREY:
- format = bgfx::TextureFormat::R8;
- break;
-
- case LCT_GREY_ALPHA:
- format = bgfx::TextureFormat::RG8;
- break;
-
- case LCT_RGB:
- format = bgfx::TextureFormat::RGB8;
- break;
-
- case LCT_RGBA:
- format = bgfx::TextureFormat::RGBA8;
- break;
-
- case LCT_PALETTE:
- break;
- }
- break;
-
- case 16:
- switch (state.info_raw.colortype)
- {
- case LCT_GREY:
- for (uint32_t ii = 0, num = width*height; ii < num; ++ii)
- {
- uint16_t* rgba = (uint16_t*)data + ii;
- rgba[0] = bx::toHostEndian(rgba[0], false);
- }
- format = bgfx::TextureFormat::R16;
- break;
-
- case LCT_GREY_ALPHA:
- for (uint32_t ii = 0, num = width*height; ii < num; ++ii)
- {
- uint16_t* rgba = (uint16_t*)data + ii*2;
- rgba[0] = bx::toHostEndian(rgba[0], false);
- rgba[1] = bx::toHostEndian(rgba[1], false);
- }
- format = bgfx::TextureFormat::RG16;
- break;
-
- case LCT_RGBA:
- for (uint32_t ii = 0, num = width*height; ii < num; ++ii)
- {
- uint16_t* rgba = (uint16_t*)data + ii*4;
- rgba[0] = bx::toHostEndian(rgba[0], false);
- rgba[1] = bx::toHostEndian(rgba[1], false);
- rgba[2] = bx::toHostEndian(rgba[2], false);
- rgba[3] = bx::toHostEndian(rgba[3], false);
- }
- format = bgfx::TextureFormat::RGBA16;
- break;
-
- case LCT_RGB:
- case LCT_PALETTE:
- break;
- }
- break;
-
- default:
- break;
- }
-
- output = imageAlloc(_allocator
- , format
- , uint16_t(width)
- , uint16_t(height)
- , 0
- , 1
- , false
- , false
- , data
- );
- }
-
- lodepng_state_cleanup(&state);
- lodepng_free(data);
-
- return output;
- }
-
- static ImageContainer* imageParseTinyExr(bx::AllocatorI* _allocator, const void* _data, uint32_t _size)
- {
- EXRVersion exrVersion;
- int result = ParseEXRVersionFromMemory(&exrVersion, (uint8_t*)_data, _size);
- if (TINYEXR_SUCCESS != result)
- {
- return NULL;
- }
-
- bgfx::TextureFormat::Enum format = bgfx::TextureFormat::RGBA8;
- uint32_t width = 0;
- uint32_t height = 0;
-
- uint8_t* data = NULL;
- const char* err = NULL;
- EXRHeader exrHeader;
- result = ParseEXRHeaderFromMemory(&exrHeader, &exrVersion, (uint8_t*)_data, _size, &err);
- if (TINYEXR_SUCCESS == result)
- {
- EXRImage exrImage;
- InitEXRImage(&exrImage);
-
- result = LoadEXRImageFromMemory(&exrImage, &exrHeader, (uint8_t*)_data, _size, &err);
- if (TINYEXR_SUCCESS == result)
- {
- uint8_t idxR = UINT8_MAX;
- uint8_t idxG = UINT8_MAX;
- uint8_t idxB = UINT8_MAX;
- uint8_t idxA = UINT8_MAX;
- for (uint8_t ii = 0, num = uint8_t(exrHeader.num_channels); ii < num; ++ii)
- {
- const EXRChannelInfo& channel = exrHeader.channels[ii];
- if (UINT8_MAX == idxR
- && 0 == bx::strncmp(channel.name, "R") )
- {
- idxR = ii;
- }
- else if (UINT8_MAX == idxG
- && 0 == bx::strncmp(channel.name, "G") )
- {
- idxG = ii;
- }
- else if (UINT8_MAX == idxB
- && 0 == bx::strncmp(channel.name, "B") )
- {
- idxB = ii;
- }
- else if (UINT8_MAX == idxA
- && 0 == bx::strncmp(channel.name, "A") )
- {
- idxA = ii;
- }
- }
-
- if (UINT8_MAX != idxR)
- {
- const bool asFloat = exrHeader.pixel_types[idxR] == TINYEXR_PIXELTYPE_FLOAT;
- uint32_t srcBpp = 32;
- uint32_t dstBpp = asFloat ? 32 : 16;
- format = asFloat ? TextureFormat::R32F : TextureFormat::R16F;
- uint32_t stepR = 1;
- uint32_t stepG = 0;
- uint32_t stepB = 0;
- uint32_t stepA = 0;
-
- if (UINT8_MAX != idxG)
- {
- srcBpp += 32;
- dstBpp = asFloat ? 64 : 32;
- format = asFloat ? TextureFormat::RG32F : TextureFormat::RG16F;
- stepG = 1;
- }
-
- if (UINT8_MAX != idxB)
- {
- srcBpp += 32;
- dstBpp = asFloat ? 128 : 64;
- format = asFloat ? TextureFormat::RGBA32F : TextureFormat::RGBA16F;
- stepB = 1;
- }
-
- if (UINT8_MAX != idxA)
- {
- srcBpp += 32;
- dstBpp = asFloat ? 128 : 64;
- format = asFloat ? TextureFormat::RGBA32F : TextureFormat::RGBA16F;
- stepA = 1;
- }
-
- data = (uint8_t*)BX_ALLOC(_allocator, exrImage.width * exrImage.height * dstBpp/8);
-
- const float zero = 0.0f;
- const float* srcR = UINT8_MAX == idxR ? &zero : (const float*)(exrImage.images)[idxR];
- const float* srcG = UINT8_MAX == idxG ? &zero : (const float*)(exrImage.images)[idxG];
- const float* srcB = UINT8_MAX == idxB ? &zero : (const float*)(exrImage.images)[idxB];
- const float* srcA = UINT8_MAX == idxA ? &zero : (const float*)(exrImage.images)[idxA];
-
- const uint32_t bytesPerPixel = dstBpp/8;
- for (uint32_t ii = 0, num = exrImage.width * exrImage.height; ii < num; ++ii)
- {
- float rgba[4] =
- {
- *srcR,
- *srcG,
- *srcB,
- *srcA,
- };
- bx::memCopy(&data[ii * bytesPerPixel], rgba, bytesPerPixel);
-
- srcR += stepR;
- srcG += stepG;
- srcB += stepB;
- srcA += stepA;
- }
- }
-
- FreeEXRImage(&exrImage);
- }
-
- FreeEXRHeader(&exrHeader);
- }
-
- ImageContainer* output = imageAlloc(_allocator
- , format
- , uint16_t(width)
- , uint16_t(height)
- , 0
- , 1
- , false
- , false
- , data
- );
- BX_FREE(_allocator, data);
-
- return output;
- }
-
- static ImageContainer* imageParseStbImage(bx::AllocatorI* _allocator, const void* _data, uint32_t _size)
- {
- const int isHdr = stbi_is_hdr_from_memory((const uint8_t*)_data, (int)_size);
-
- void* data;
- uint32_t width = 0;
- uint32_t height = 0;
- int comp = 0;
- if (isHdr) { data = stbi_loadf_from_memory((const uint8_t*)_data, (int)_size, (int*)&width, (int*)&height, &comp, 4); }
- else { data = stbi_load_from_memory ((const uint8_t*)_data, (int)_size, (int*)&width, (int*)&height, &comp, 0); }
-
- if (NULL == data)
- {
- return NULL;
- }
-
- bgfx::TextureFormat::Enum format;
- if (isHdr)
- {
- format = bgfx::TextureFormat::RGBA32F;
- }
- else
- {
- if (1 == comp) { format = bgfx::TextureFormat::R8; }
- else if (2 == comp) { format = bgfx::TextureFormat::RG8; }
- else if (3 == comp) { format = bgfx::TextureFormat::RGB8; }
- else/*if (4 == comp)*/ { format = bgfx::TextureFormat::RGBA8; }
- }
-
- ImageContainer* output = imageAlloc(_allocator
- , format
- , uint16_t(width)
- , uint16_t(height)
- , 0
- , 1
- , false
- , false
- , data
- );
- stbi_image_free(data);
-
- return output;
- }
-
- ImageContainer* imageParse(bx::AllocatorI* _allocator, const void* _data, uint32_t _size, TextureFormat::Enum _dstFormat)
- {
- ImageContainer* input = imageParseBgfx (_allocator, _data, _size) ;
- input = NULL == input ? imageParseLodePng (_allocator, _data, _size) : input;
- input = NULL == input ? imageParseTinyExr (_allocator, _data, _size) : input;
- input = NULL == input ? imageParseStbImage(_allocator, _data, _size) : input;
-
- if (NULL == input)
- {
- return NULL;
- }
-
- _dstFormat = TextureFormat::Count == _dstFormat
- ? input->m_format
- : _dstFormat
- ;
-
- if (_dstFormat == input->m_format)
- {
- return input;
- }
-
- ImageContainer* output = imageConvert(_allocator, _dstFormat, *input);
- imageFree(input);
-
- return output;
- }
-
-} // namespace bgfx