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/*
** Copyright (c) 2020 LunarG, Inc.
** Copyright (c) 2021 Advanced Micro Devices, Inc. All rights reserved.
*
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and associated documentation files (the "Software"),
** to deal in the Software without restriction, including without limitation
** the rights to use, copy, modify, merge, publish, distribute, sublicense,
** and/or sell copies of the Software, and to permit persons to whom the
** Software is furnished to do so, subject to the following conditions:
**
** The above copyright notice and this permission notice shall be included in
** all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
** FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
** DEALINGS IN THE SOFTWARE.
*/
#include "image_writer.h"
#include "platform.h"
GFXRECON_BEGIN_NAMESPACE(gfxrecon)
GFXRECON_BEGIN_NAMESPACE(util)
GFXRECON_BEGIN_NAMESPACE(imagewriter)
const uint16_t kBmpBitCount = 32; // Expecting 32-bit BGRA bitmap data.
const uint32_t kBmpBpp = 4; // Expecting 4 bytes per pixel for 32-bit BGRA bitmap data.
bool WriteBmpImage(
const std::string& filename, uint32_t width, uint32_t height, uint64_t data_size, const void* data, uint32_t pitch)
{
bool success = false;
uint32_t row_pitch = width * kBmpBpp;
if (pitch != 0)
{
row_pitch = pitch;
}
uint32_t image_size = height * row_pitch;
if (image_size <= data_size)
{
FILE* file = nullptr;
int32_t result = util::platform::FileOpen(&file, filename.c_str(), "wb");
if ((result == 0) && (file != nullptr))
{
BmpFileHeader file_header;
BmpInfoHeader info_header;
file_header.type = ('M' << 8) | 'B';
file_header.reserved1 = 0;
file_header.reserved2 = 0;
file_header.off_bits = sizeof(file_header) + sizeof(info_header);
file_header.size = image_size + file_header.off_bits;
info_header.size = sizeof(info_header);
info_header.width = width;
info_header.height = height;
info_header.planes = 1;
info_header.bit_count = kBmpBitCount;
info_header.compression = 0;
info_header.size_image = 0;
info_header.x_pels_per_meter = 0;
info_header.y_pels_per_meter = 0;
info_header.clr_used = 0;
info_header.clr_important = 0;
util::platform::FileWrite(&file_header, sizeof(file_header), 1, file);
util::platform::FileWrite(&info_header, sizeof(info_header), 1, file);
// Y needs to be inverted when writing the bitmap data.
auto height_1 = height - 1;
auto bytes = reinterpret_cast<const uint8_t*>(data);
for (uint32_t i = 0; i < height; ++i)
{
util::platform::FileWrite(&bytes[(height_1 - i) * row_pitch], 1, width * kBmpBpp, file);
}
if (!ferror(file))
{
success = true;
}
util::platform::FileClose(file);
}
}
return success;
}
GFXRECON_END_NAMESPACE(imagewriter)
GFXRECON_END_NAMESPACE(util)
GFXRECON_END_NAMESPACE(gfxrecon)
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