mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-09-21 20:01:40 +02:00
95a2abc1ce
I tried to change messages that contained instructions for users, while avoiding messages that are so technical that most users wouldn't understand them even if they were in the right language.
112 lines
2.6 KiB
C++
112 lines
2.6 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <list>
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#include <string>
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#include <vector>
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#include "png.h"
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#include "Common/FileUtil.h"
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#include "VideoCommon/ImageWrite.h"
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bool SaveData(const std::string& filename, const char* data)
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{
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std::ofstream f;
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OpenFStream(f, filename, std::ios::binary);
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f << data;
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return true;
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}
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/*
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TextureToPng
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Inputs:
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data : This is an array of RGBA with 8 bits per channel. 4 bytes for each pixel.
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row_stride: Determines the amount of bytes per row of pixels.
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*/
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bool TextureToPng(u8* data, int row_stride, const std::string& filename, int width, int height, bool saveAlpha)
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{
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bool success = false;
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if (!data)
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return false;
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char title[] = "Dolphin Screenshot";
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char title_key[] = "Title";
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png_structp png_ptr = nullptr;
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png_infop info_ptr = nullptr;
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// Open file for writing (binary mode)
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File::IOFile fp(filename, "wb");
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if (!fp.IsOpen())
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{
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PanicAlertT("Screenshot failed: Could not open file \"%s\" (error %d)", filename.c_str(), errno);
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goto finalise;
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}
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// Initialize write structure
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png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
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if (png_ptr == nullptr)
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{
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PanicAlert("Screenshot failed: Could not allocate write struct");
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goto finalise;
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}
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// Initialize info structure
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info_ptr = png_create_info_struct(png_ptr);
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if (info_ptr == nullptr)
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{
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PanicAlert("Screenshot failed: Could not allocate info struct");
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goto finalise;
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}
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// Setup Exception handling
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if (setjmp(png_jmpbuf(png_ptr)))
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{
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PanicAlert("Screenshot failed: Error during PNG creation");
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goto finalise;
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}
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png_init_io(png_ptr, fp.GetHandle());
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// Write header (8 bit color depth)
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png_set_IHDR(png_ptr, info_ptr, width, height,
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8, PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
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PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
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png_text title_text;
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title_text.compression = PNG_TEXT_COMPRESSION_NONE;
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title_text.key = title_key;
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title_text.text = title;
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png_set_text(png_ptr, info_ptr, &title_text, 1);
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png_write_info(png_ptr, info_ptr);
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// Write image data
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for (auto y = 0; y < height; ++y)
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{
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u8* row_ptr = (u8*)data + y * row_stride;
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u8* ptr = row_ptr;
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for (auto x = 0; x < row_stride / 4; ++x)
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{
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if (!saveAlpha)
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ptr[3] = 0xff;
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ptr += 4;
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}
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png_write_row(png_ptr, row_ptr);
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}
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// End write
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png_write_end(png_ptr, nullptr);
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success = true;
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finalise:
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if (info_ptr != nullptr) png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);
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if (png_ptr != nullptr) png_destroy_write_struct(&png_ptr, (png_infopp)nullptr);
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return success;
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}
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