mirror of
https://github.com/giongto35/cloud-game.git
synced 2026-07-21 00:59:22 +00:00
c7caa87624
* WIP * Add libretro * Update input retro * Update cloud retro input: * Integrate libretro remove GL * Launch emulator by game type * Save and load * Update deeplink to game directly * Done channel for naemulator * each server handle only one session * Only provide available clients * Emulator based on game * Remove all OpenGL related * Retroarch audio * Audio encoding mono * Experiment with libretro audio * Audio without datachannel * Audio opus internal * Remove unnecessary code * Resampled * Limit time frame * Start Room and Audio by game * Dynamic video image allocation * Dynamic Video buffer allocation based on video resolution * Move encoder to room * width and height from emulator * Padding images to fix multipler of 64 * Remove OpenGL * Remove Open AL * Remove OpenGL from Go mod * Move away nanoarch logic in naemulator * Remove unecessary savefiles.go * Optimize Docker for caching * Update ReadME * Update README to introduce Retro * Update README * Update README.md
89 lines
2.4 KiB
Go
89 lines
2.4 KiB
Go
// credit to https://github.com/poi5305/go-yuv2webRTC/blob/master/webrtc/webrtc.go
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package util
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import (
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"image"
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"log"
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"os/user"
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"unsafe"
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)
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// https://stackoverflow.com/questions/9465815/rgb-to-yuv420-algorithm-efficiency
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/*
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void rgba2yuv(void *destination, void *source, int width, int height, int stride) {
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const int image_size = width * height;
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unsigned char *rgba = source;
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unsigned char *dst_y = destination;
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unsigned char *dst_u = destination + image_size;
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unsigned char *dst_v = destination + image_size + image_size/4;
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// Y plane
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for( int y=0; y<height; ++y ) {
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for( int x=0; x<width; ++x ) {
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const int i = y*(width+stride) + x;
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*dst_y++ = ( ( 66*rgba[4*i] + 129*rgba[4*i+1] + 25*rgba[4*i+2] ) >> 8 ) + 16;
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}
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}
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// U plane
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for( int y=0; y<height; y+=2 ) {
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for( int x=0; x<width; x+=2 ) {
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const int i = y*(width+stride) + x;
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*dst_u++ = ( ( -38*rgba[4*i] + -74*rgba[4*i+1] + 112*rgba[4*i+2] ) >> 8 ) + 128;
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}
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}
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// V plane
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for( int y=0; y<height; y+=2 ) {
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for( int x=0; x<width; x+=2 ) {
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const int i = y*(width+stride) + x;
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*dst_v++ = ( ( 112*rgba[4*i] + -94*rgba[4*i+1] + -18*rgba[4*i+2] ) >> 8 ) + 128;
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}
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}
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}
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*/
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import "C"
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// RgbaToYuv convert to yuv from rgba
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func RgbaToYuv(rgba *image.RGBA) []byte {
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w := rgba.Rect.Max.X
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h := rgba.Rect.Max.Y
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size := int(float32(w*h) * 1.5)
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stride := rgba.Stride - w*4
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yuv := make([]byte, size, size)
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C.rgba2yuv(unsafe.Pointer(&yuv[0]), unsafe.Pointer(&rgba.Pix[0]), C.int(w), C.int(h), C.int(stride))
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return yuv
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}
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// RgbaToYuvInplace convert to yuv from rgba inplace to yuv. Avoid reallocation
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func RgbaToYuvInplace(rgba *image.RGBA, yuv []byte, width, height int) {
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stride := rgba.Stride - width*4
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C.rgba2yuv(unsafe.Pointer(&yuv[0]), unsafe.Pointer(&rgba.Pix[0]), C.int(width), C.int(height), C.int(stride))
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}
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var homeDir string
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func init() {
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u, err := user.Current()
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if err != nil {
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log.Fatalln(err)
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}
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homeDir = u.HomeDir
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}
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// GetSavePath returns save location of game based on roomID
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func GetSavePath(roomID string) string {
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return savePath(roomID)
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}
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// GetSRAMPath returns SRAM location of game based on roomID
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func GetSRAMPath(hash string) string {
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return homeDir + "/.nes/sram/" + hash + ".dat"
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}
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func sramPath(hash string) string {
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return homeDir + "/.nes/sram/" + hash + ".dat"
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}
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func savePath(hash string) string {
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return homeDir + "/.nes/save/" + hash + ".dat"
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}
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