110 lines
No EOL
3.2 KiB
C++
110 lines
No EOL
3.2 KiB
C++
#pragma once
|
|
#include "../Core/IRenderingDevice.h"
|
|
#include "../Core/VideoRenderer.h"
|
|
#include "../Core/EmuSettings.h"
|
|
#include "../Core/Console.h"
|
|
#include "../Utilities/snes_ntsc.h"
|
|
#include "libretro.h"
|
|
|
|
class LibretroRenderer : public IRenderingDevice
|
|
{
|
|
private:
|
|
shared_ptr<Console> _console;
|
|
retro_video_refresh_t _sendFrame = nullptr;
|
|
retro_environment_t _retroEnv = nullptr;
|
|
bool _skipMode = false;
|
|
int32_t _previousHeight = -1;
|
|
int32_t _previousWidth = -1;
|
|
|
|
public:
|
|
LibretroRenderer(shared_ptr<Console> console, retro_environment_t retroEnv)
|
|
{
|
|
_console = console;
|
|
_retroEnv = retroEnv;
|
|
_console->GetVideoRenderer()->RegisterRenderingDevice(this);
|
|
}
|
|
|
|
~LibretroRenderer()
|
|
{
|
|
_console->GetVideoRenderer()->UnregisterRenderingDevice(this);
|
|
}
|
|
|
|
// Inherited via IRenderingDevice
|
|
virtual void UpdateFrame(void *frameBuffer, uint32_t width, uint32_t height) override
|
|
{
|
|
if(!_skipMode && _sendFrame) {
|
|
//Use Blargg's NTSC filter's max size as a minimum resolution, to prevent changing resolution too often
|
|
int32_t newWidth = std::max<int32_t>(width, SNES_NTSC_OUT_WIDTH(256));
|
|
int32_t newHeight = std::max<int32_t>(height, 239 * 2);
|
|
if(_retroEnv != nullptr && (_previousWidth != newWidth || _previousHeight != newHeight)) {
|
|
//Resolution change is needed
|
|
retro_system_av_info avInfo = {};
|
|
GetSystemAudioVideoInfo(avInfo, newWidth, newHeight);
|
|
_retroEnv(RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO, &avInfo);
|
|
|
|
_previousWidth = newWidth;
|
|
_previousHeight = newHeight;
|
|
}
|
|
|
|
_sendFrame(frameBuffer, width, height, sizeof(uint32_t) * width);
|
|
}
|
|
}
|
|
|
|
void GetSystemAudioVideoInfo(retro_system_av_info &info, int32_t maxWidth = 0, int32_t maxHeight = 0)
|
|
{
|
|
AudioConfig audio = _console->GetSettings()->GetAudioConfig();
|
|
|
|
info.timing.fps = _console->GetRegion() == ConsoleRegion::Ntsc ? 60.098811862348404716732985230828 : 50.006977968268290848936010226333;
|
|
info.timing.sample_rate = audio.SampleRate;
|
|
|
|
OverscanDimensions overscan = _console->GetSettings()->GetOverscan();
|
|
int width = (256 - overscan.Left - overscan.Right);
|
|
int height = (239 - overscan.Top - overscan.Bottom);
|
|
|
|
double aspectRatio = _console->GetSettings()->GetAspectRatio(_console->GetRegion());
|
|
if(aspectRatio != 0.0) {
|
|
VideoAspectRatio aspect = _console->GetSettings()->GetVideoConfig().AspectRatio;
|
|
bool usePar = aspect == VideoAspectRatio::NTSC || aspect == VideoAspectRatio::PAL || aspect == VideoAspectRatio::Auto;
|
|
if(usePar) {
|
|
info.geometry.aspect_ratio = (float)(width * aspectRatio / height);
|
|
} else {
|
|
info.geometry.aspect_ratio = (float)aspectRatio;
|
|
}
|
|
} else {
|
|
info.geometry.aspect_ratio = (float)width / height;
|
|
}
|
|
|
|
info.geometry.base_width = width;
|
|
info.geometry.base_height = height;
|
|
|
|
info.geometry.max_width = maxWidth;
|
|
info.geometry.max_height = maxHeight;
|
|
|
|
if(maxHeight > 0 && maxWidth > 0) {
|
|
_previousWidth = maxWidth;
|
|
_previousHeight = maxHeight;
|
|
}
|
|
}
|
|
|
|
void SetVideoCallback(retro_video_refresh_t sendFrame)
|
|
{
|
|
_sendFrame = sendFrame;
|
|
}
|
|
|
|
void SetSkipMode(bool skip)
|
|
{
|
|
_skipMode = skip;
|
|
}
|
|
|
|
virtual void Render() override
|
|
{
|
|
}
|
|
|
|
virtual void Reset() override
|
|
{
|
|
}
|
|
|
|
virtual void SetFullscreenMode(bool fullscreen, void *windowHandle, uint32_t monitorWidth, uint32_t monitorHeight) override
|
|
{
|
|
}
|
|
}; |