mirror of
https://github.com/libretro/ppsspp.git
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298 lines
8.1 KiB
C++
298 lines
8.1 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#ifdef USING_QT_UI
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#include <QtGui/QImage>
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#else
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#include <libpng17/png.h>
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#include "ext/jpge/jpge.h"
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#endif
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#include "Common/ColorConv.h"
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#include "Common/FileUtil.h"
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#include "Core/Config.h"
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#include "Core/Screenshot.h"
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#include "GPU/Common/GPUDebugInterface.h"
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#ifdef _WIN32
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#include "GPU/Directx9/GPU_DX9.h"
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#endif
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#include "GPU/GLES/GPU_GLES.h"
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#include "GPU/GPUInterface.h"
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#include "GPU/GPUState.h"
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#ifndef USING_QT_UI
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// This is used to make non-ASCII paths work for filename.
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// Technically only needed on Windows.
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class JPEGFileStream : public jpge::output_stream
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{
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public:
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JPEGFileStream(const char *filename) {
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fp_ = File::OpenCFile(filename, "wb");
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}
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~JPEGFileStream() override {
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if (fp_ ) {
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fclose(fp_);
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}
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}
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bool put_buf(const void *buf, int len) override
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{
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if (fp_) {
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if (fwrite(buf, len, 1, fp_) != 1) {
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fclose(fp_);
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fp_ = nullptr;
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}
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}
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return Valid();
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}
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bool Valid() {
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return fp_ != nullptr;
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}
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private:
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FILE *fp_;
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};
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static bool WriteScreenshotToJPEG(const char *filename, int width, int height, int num_channels, const uint8_t *image_data, const jpge::params &comp_params) {
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JPEGFileStream dst_stream(filename);
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if (!dst_stream.Valid()) {
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ERROR_LOG(COMMON, "Unable to open screenshot file for writing.");
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return false;
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}
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jpge::jpeg_encoder dst_image;
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if (!dst_image.init(&dst_stream, width, height, num_channels, comp_params)) {
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ERROR_LOG(COMMON, "Screenshot JPEG encode init failed.");
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return false;
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}
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for (u32 pass_index = 0; pass_index < dst_image.get_total_passes(); pass_index++) {
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for (int i = 0; i < height; i++) {
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const uint8_t *buf = image_data + i * width * num_channels;
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if (!dst_image.process_scanline(buf)) {
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ERROR_LOG(COMMON, "Screenshot JPEG encode scanline failed.");
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return false;
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}
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}
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if (!dst_image.process_scanline(NULL)) {
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ERROR_LOG(COMMON, "Screenshot JPEG encode scanline flush failed.");
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return false;
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}
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}
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if (!dst_stream.Valid()) {
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ERROR_LOG(COMMON, "Screenshot file write failed.");
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}
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dst_image.deinit();
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return dst_stream.Valid();
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}
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static bool WriteScreenshotToPNG(png_imagep image, const char *filename, int convert_to_8bit, const void *buffer, png_int_32 row_stride, const void *colormap) {
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FILE *fp = File::OpenCFile(filename, "wb");
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if (!fp) {
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ERROR_LOG(COMMON, "Unable to open screenshot file for writing.");
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return false;
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}
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if (png_image_write_to_stdio(image, fp, convert_to_8bit, buffer, row_stride, colormap)) {
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if (fclose(fp) != 0) {
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ERROR_LOG(COMMON, "Screenshot file write failed.");
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return false;
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}
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return true;
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} else {
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ERROR_LOG(COMMON, "Screenshot PNG encode failed.");
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fclose(fp);
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remove(filename);
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return false;
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}
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}
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#endif
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static const u8 *ConvertBufferTo888RGB(const GPUDebugBuffer &buf, u8 *&temp, u32 &w, u32 &h) {
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// The temp buffer will be freed by the caller if set, and can be the return value.
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temp = nullptr;
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w = std::min(w, buf.GetStride());
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h = std::min(h, buf.GetHeight());
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const u8 *buffer = buf.GetData();
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if (buf.GetFlipped() && buf.GetFormat() == GPU_DBG_FORMAT_888_RGB) {
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// Silly OpenGL reads upside down, we flip to another buffer for simplicity.
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temp = new u8[3 * w * h];
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for (u32 y = 0; y < h; y++) {
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memcpy(temp + y * w * 3, buffer + (buf.GetHeight() - y - 1) * buf.GetStride() * 3, w * 3);
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}
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buffer = temp;
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} else if (buf.GetFormat() != GPU_DBG_FORMAT_888_RGB) {
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// Let's boil it down to how we need to interpret the bits.
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int baseFmt = buf.GetFormat() & ~(GPU_DBG_FORMAT_REVERSE_FLAG | GPU_DBG_FORMAT_BRSWAP_FLAG);
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bool rev = (buf.GetFormat() & GPU_DBG_FORMAT_REVERSE_FLAG) != 0;
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bool brswap = (buf.GetFormat() & GPU_DBG_FORMAT_BRSWAP_FLAG) != 0;
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bool flip = buf.GetFlipped();
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temp = new u8[3 * w * h];
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// This is pretty inefficient.
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const u16 *buf16 = (const u16 *)buffer;
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const u32 *buf32 = (const u32 *)buffer;
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for (u32 y = 0; y < h; y++) {
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for (u32 x = 0; x < w; x++) {
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u8 *dst;
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if (flip) {
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dst = &temp[(h - y - 1) * w * 3 + x * 3];
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} else {
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dst = &temp[y * w * 3 + x * 3];
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}
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u8 &r = brswap ? dst[2] : dst[0];
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u8 &g = dst[1];
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u8 &b = brswap ? dst[0] : dst[2];
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u32 src;
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switch (baseFmt) {
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case GPU_DBG_FORMAT_565:
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src = buf16[y * buf.GetStride() + x];
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if (rev) {
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src = bswap16(src);
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}
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r = Convert5To8((src >> 0) & 0x1F);
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g = Convert6To8((src >> 5) & 0x3F);
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b = Convert5To8((src >> 11) & 0x1F);
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break;
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case GPU_DBG_FORMAT_5551:
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src = buf16[y * buf.GetStride() + x];
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if (rev) {
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src = bswap16(src);
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}
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r = Convert5To8((src >> 0) & 0x1F);
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g = Convert5To8((src >> 5) & 0x1F);
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b = Convert5To8((src >> 10) & 0x1F);
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break;
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case GPU_DBG_FORMAT_4444:
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src = buf16[y * buf.GetStride() + x];
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if (rev) {
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src = bswap16(src);
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}
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r = Convert4To8((src >> 0) & 0xF);
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g = Convert4To8((src >> 4) & 0xF);
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b = Convert4To8((src >> 8) & 0xF);
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break;
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case GPU_DBG_FORMAT_8888:
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src = buf32[y * buf.GetStride() + x];
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if (rev) {
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src = bswap32(src);
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}
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r = (src >> 0) & 0xFF;
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g = (src >> 8) & 0xFF;
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b = (src >> 16) & 0xFF;
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break;
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default:
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ERROR_LOG(COMMON, "Unsupported framebuffer format for screenshot: %d", buf.GetFormat());
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return nullptr;
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}
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}
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}
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buffer = temp;
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}
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return buffer;
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}
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bool TakeGameScreenshot(const char *filename, ScreenshotFormat fmt, ScreenshotType type, int *width, int *height, int maxRes) {
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GPUDebugBuffer buf;
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bool success = false;
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u32 w = (u32)-1;
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u32 h = (u32)-1;
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if (type == SCREENSHOT_RENDER) {
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if (gpuDebug) {
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success = gpuDebug->GetCurrentFramebuffer(buf, maxRes);
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}
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// Only crop to the top left when using a render screenshot.
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w = maxRes > 0 ? 480 * maxRes : PSP_CoreParameter().renderWidth;
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h = maxRes > 0 ? 272 * maxRes : PSP_CoreParameter().renderHeight;
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} else {
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if (GetGPUBackend() == GPUBackend::OPENGL) {
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success = GPU_GLES::GetDisplayFramebuffer(buf);
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#ifdef _WIN32
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} else if (GetGPUBackend() == GPUBackend::DIRECT3D9) {
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success = DX9::GPU_DX9::GetDisplayFramebuffer(buf);
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#endif
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}
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}
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if (!success) {
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ERROR_LOG(COMMON, "Failed to obtain screenshot data.");
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return false;
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}
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#ifdef USING_QT_UI
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if (success) {
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u8 *flipbuffer = nullptr;
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const u8 *buffer = ConvertBufferTo888RGB(buf, flipbuffer, w, h);
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// TODO: Handle other formats (e.g. Direct3D, raw framebuffers.)
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QImage image(buffer, w, h, QImage::Format_RGB888);
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success = image.save(filename, fmt == SCREENSHOT_PNG ? "PNG" : "JPG");
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delete [] flipbuffer;
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}
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#else
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if (success) {
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u8 *flipbuffer = nullptr;
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const u8 *buffer = ConvertBufferTo888RGB(buf, flipbuffer, w, h);
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if (buffer == nullptr) {
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success = false;
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}
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if (width)
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*width = w;
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if (height)
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*height = h;
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if (success && fmt == SCREENSHOT_PNG) {
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png_image png;
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memset(&png, 0, sizeof(png));
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png.version = PNG_IMAGE_VERSION;
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png.format = PNG_FORMAT_RGB;
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png.width = w;
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png.height = h;
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success = WriteScreenshotToPNG(&png, filename, 0, buffer, w * 3, nullptr);
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png_image_free(&png);
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if (png.warning_or_error >= 2) {
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ERROR_LOG(COMMON, "Saving screenshot to PNG produced errors.");
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success = false;
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}
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} else if (success && fmt == SCREENSHOT_JPG) {
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jpge::params params;
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params.m_quality = 90;
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success = WriteScreenshotToJPEG(filename, w, h, 3, buffer, params);
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} else {
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success = false;
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}
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delete [] flipbuffer;
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}
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#endif
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if (!success) {
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ERROR_LOG(COMMON, "Failed to write screenshot.");
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}
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return success;
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}
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