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https://github.com/SourMesen/Mesen-S.git
synced 2024-06-05 06:38:47 -04:00
5daa1b6225
-Fixed calculation for width for NTSC/PAL -NTSC/PAL are PAR, as before, but 4:3/16:9 are now DAR instead, since their purpose is to fill the user's screen, regardless of overscan settings
110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
#pragma once
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#include "../Core/IRenderingDevice.h"
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#include "../Core/VideoRenderer.h"
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#include "../Core/EmuSettings.h"
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#include "../Core/Console.h"
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#include "../Utilities/snes_ntsc.h"
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#include "libretro.h"
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class LibretroRenderer : public IRenderingDevice
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{
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private:
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shared_ptr<Console> _console;
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retro_video_refresh_t _sendFrame = nullptr;
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retro_environment_t _retroEnv = nullptr;
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bool _skipMode = false;
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int32_t _previousHeight = -1;
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int32_t _previousWidth = -1;
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public:
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LibretroRenderer(shared_ptr<Console> console, retro_environment_t retroEnv)
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{
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_console = console;
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_retroEnv = retroEnv;
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_console->GetVideoRenderer()->RegisterRenderingDevice(this);
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}
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~LibretroRenderer()
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{
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_console->GetVideoRenderer()->UnregisterRenderingDevice(this);
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}
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// Inherited via IRenderingDevice
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virtual void UpdateFrame(void *frameBuffer, uint32_t width, uint32_t height) override
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{
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if(!_skipMode && _sendFrame) {
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//Use Blargg's NTSC filter's max size as a minimum resolution, to prevent changing resolution too often
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int32_t newWidth = std::max<int32_t>(width, SNES_NTSC_OUT_WIDTH(256));
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int32_t newHeight = std::max<int32_t>(height, 239 * 2);
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if(_retroEnv != nullptr && (_previousWidth != newWidth || _previousHeight != newHeight)) {
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//Resolution change is needed
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retro_system_av_info avInfo = {};
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GetSystemAudioVideoInfo(avInfo, newWidth, newHeight);
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_retroEnv(RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO, &avInfo);
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_previousWidth = newWidth;
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_previousHeight = newHeight;
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}
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_sendFrame(frameBuffer, width, height, sizeof(uint32_t) * width);
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}
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}
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void GetSystemAudioVideoInfo(retro_system_av_info &info, int32_t maxWidth = 0, int32_t maxHeight = 0)
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{
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AudioConfig audio = _console->GetSettings()->GetAudioConfig();
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info.timing.fps = _console->GetRegion() == ConsoleRegion::Ntsc ? 60.098811862348404716732985230828 : 50.006977968268290848936010226333;
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info.timing.sample_rate = audio.SampleRate;
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OverscanDimensions overscan = _console->GetSettings()->GetOverscan();
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int width = (256 - overscan.Left - overscan.Right);
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int height = (239 - overscan.Top - overscan.Bottom);
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double aspectRatio = _console->GetSettings()->GetAspectRatio(_console->GetRegion());
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if(aspectRatio != 0.0) {
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VideoAspectRatio aspect = _console->GetSettings()->GetVideoConfig().AspectRatio;
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bool usePar = aspect == VideoAspectRatio::NTSC || aspect == VideoAspectRatio::PAL || aspect == VideoAspectRatio::Auto;
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if(usePar) {
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info.geometry.aspect_ratio = (float)(width * aspectRatio / height);
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} else {
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info.geometry.aspect_ratio = (float)aspectRatio;
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}
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} else {
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info.geometry.aspect_ratio = (float)width / height;
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}
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info.geometry.base_width = width;
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info.geometry.base_height = height;
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info.geometry.max_width = maxWidth;
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info.geometry.max_height = maxHeight;
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if(maxHeight > 0 && maxWidth > 0) {
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_previousWidth = maxWidth;
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_previousHeight = maxHeight;
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}
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}
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void SetVideoCallback(retro_video_refresh_t sendFrame)
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{
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_sendFrame = sendFrame;
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}
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void SetSkipMode(bool skip)
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{
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_skipMode = skip;
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}
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virtual void Render() override
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{
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}
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virtual void Reset() override
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{
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}
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virtual void SetFullscreenMode(bool fullscreen, void *windowHandle, uint32_t monitorWidth, uint32_t monitorHeight) override
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{
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}
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}; |