forked from mia/Aegisub
Made YV12->RGB32 conversion happen before subtitling, so asa works without glitching.
Originally committed to SVN as r982.
This commit is contained in:
Rodrigo Braz Monteiro
parent
4e2af4cd57
commit
246be56350
2 changed files with 57 additions and 51 deletions
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@ -265,10 +265,11 @@ void OpenGLWrapper::SetModeFill() {
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//////////////////////////
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// Are shaders available?
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bool OpenGLWrapper::ShadersAvailable() {
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bool available = IsExtensionSupported("GL_ARB_vertex_shader") && IsExtensionSupported("GL_ARB_fragment_shader");
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static bool first = true;
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static bool available = false;
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if (first) {
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first = false;
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available = IsExtensionSupported("GL_ARB_vertex_shader") && IsExtensionSupported("GL_ARB_fragment_shader");
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if (!available) wxMessageBox(_T("Warning, OpenGL shaders are not available on this machine. YV12 video will be on greyscale."),_T("GL Shaders Error"));
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}
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return available;
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@ -400,29 +400,19 @@ wxGLContext *VideoContext::GetGLContext(wxGLCanvas *canvas) {
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}
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///////////////////////////
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// Get GL Texture of frame
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GLuint VideoContext::GetFrameAsTexture(int n) {
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// Already uploaded
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if (n == lastFrame || n == -1) return lastTex;
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////////////////////////
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// Requests a new frame
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AegiVideoFrame VideoContext::GetFrame(int n) {
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// Current frame if -1
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if (n == -1) n = frame_n;
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// Get frame
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AegiVideoFrame frame = GetFrame(n);
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AegiVideoFrame frame = provider->GetFrame(n);
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AegiVideoFrame *srcFrame = &frame;
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// Set frame
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lastFrame = n;
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// Set context
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GetGLContext(displayList.front())->SetCurrent(*displayList.front());
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glEnable(GL_TEXTURE_2D);
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if (glGetError() != 0) throw _T("Error enabling texture.");
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// Deal with YV12
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bool doMakeShader = false;
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// Convert to YV12 if it can't be handled
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if (frame.format == FORMAT_YV12 && yv12shader == 0) {
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doMakeShader = OpenGLWrapper::UseShaders();
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if (!doMakeShader) {
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if (!OpenGLWrapper::UseShaders()) {
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tempRGBFrame.w = frame.w;
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tempRGBFrame.h = frame.h;
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tempRGBFrame.pitch[0] = frame.w * 4;
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@ -432,20 +422,49 @@ GLuint VideoContext::GetFrameAsTexture(int n) {
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}
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}
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// Raster subtitles if available/necessary
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if (subsProvider && subsProvider->CanRaster()) {
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tempFrame.CopyFrom(*srcFrame);
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subsProvider->DrawSubtitles(tempFrame,VFR_Input.GetTimeAtFrame(n,true,true)/1000.0);
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return tempFrame;
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}
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// Return pure frame
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else return *srcFrame;
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}
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///////////////////////////
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// Get GL Texture of frame
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GLuint VideoContext::GetFrameAsTexture(int n) {
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// Already uploaded
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if (n == lastFrame || n == -1) return lastTex;
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// Get frame
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AegiVideoFrame frame = GetFrame(n);
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// Set frame
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lastFrame = n;
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// Set context
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GetGLContext(displayList.front())->SetCurrent(*displayList.front());
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glEnable(GL_TEXTURE_2D);
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if (glGetError() != 0) throw _T("Error enabling texture.");
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// Image type
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GLenum format = GL_LUMINANCE;
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if (srcFrame->format == FORMAT_RGB32) {
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if (srcFrame->invertChannels) format = GL_BGRA_EXT;
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if (frame.format == FORMAT_RGB32) {
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if (frame.invertChannels) format = GL_BGRA_EXT;
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else format = GL_RGBA;
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}
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else if (srcFrame->format == FORMAT_RGB24) {
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if (srcFrame->invertChannels) format = GL_BGR_EXT;
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else if (frame.format == FORMAT_RGB24) {
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if (frame.invertChannels) format = GL_BGR_EXT;
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else format = GL_RGB;
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}
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else if (srcFrame->format == FORMAT_YV12) {
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else if (frame.format == FORMAT_YV12) {
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format = GL_LUMINANCE;
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}
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isInverted = srcFrame->flipped;
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isInverted = frame.flipped;
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if (lastTex == 0) {
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// Enable
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@ -469,9 +488,9 @@ GLuint VideoContext::GetFrameAsTexture(int n) {
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if (glGetError() != 0) throw _T("Error setting wrap_t texture parameter.");
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// Load image data into texture
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int height = srcFrame->h;
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if (srcFrame->format == FORMAT_YV12) height = height * 3 / 2;
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int tw = SmallestPowerOf2(MAX(srcFrame->pitch[0]/srcFrame->GetBpp(0),srcFrame->pitch[1]+srcFrame->pitch[2]));
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int height = frame.h;
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if (frame.format == FORMAT_YV12) height = height * 3 / 2;
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int tw = SmallestPowerOf2(MAX(frame.pitch[0]/frame.GetBpp(0),frame.pitch[1]+frame.pitch[2]));
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int th = SmallestPowerOf2(height);
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glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA8,tw,th,0,format,GL_UNSIGNED_BYTE,NULL);
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if (glGetError() != 0) {
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@ -483,16 +502,16 @@ GLuint VideoContext::GetFrameAsTexture(int n) {
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if (glGetError() != 0) throw _T("Error allocating texture.");
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}
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}
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texW = float(srcFrame->w)/float(tw);
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texH = float(srcFrame->h)/float(th);
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texW = float(frame.w)/float(tw);
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texH = float(frame.h)/float(th);
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// Set texture
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//glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
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//if (glGetError() != 0) throw _T("Error setting hinting.");
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// Create shader
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if (doMakeShader) {
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yv12shader = OpenGLWrapper::CreateYV12Shader(texW,texH,float(srcFrame->pitch[1])/float(tw));
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if (frame.format == FORMAT_YV12 && yv12shader == 0 && OpenGLWrapper::UseShaders()) {
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yv12shader = OpenGLWrapper::CreateYV12Shader(texW,texH,float(frame.pitch[1])/float(tw));
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}
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// Set priority
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@ -501,20 +520,20 @@ GLuint VideoContext::GetFrameAsTexture(int n) {
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}
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// Load texture data
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glTexSubImage2D(GL_TEXTURE_2D,0,0,0,srcFrame->pitch[0]/srcFrame->GetBpp(0),srcFrame->h,format,GL_UNSIGNED_BYTE,srcFrame->data[0]);
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glTexSubImage2D(GL_TEXTURE_2D,0,0,0,frame.pitch[0]/frame.GetBpp(0),frame.h,format,GL_UNSIGNED_BYTE,frame.data[0]);
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if (glGetError() != 0) throw _T("Error uploading primary plane");
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// UV planes for YV12
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if (srcFrame->format == FORMAT_YV12) {
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if (frame.format == FORMAT_YV12) {
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int u = 1;
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int v = 2;
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if (srcFrame->invertChannels) {
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if (frame.invertChannels) {
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u = 2;
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v = 1;
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}
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glTexSubImage2D(GL_TEXTURE_2D,0,0,srcFrame->h,srcFrame->pitch[1],srcFrame->h/2,format,GL_UNSIGNED_BYTE,srcFrame->data[u]);
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glTexSubImage2D(GL_TEXTURE_2D,0,0,frame.h,frame.pitch[1],frame.h/2,format,GL_UNSIGNED_BYTE,frame.data[u]);
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if (glGetError() != 0) throw _T("Error uploading U plane.");
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glTexSubImage2D(GL_TEXTURE_2D,0,srcFrame->pitch[1],srcFrame->h,srcFrame->pitch[2],srcFrame->h/2,format,GL_UNSIGNED_BYTE,srcFrame->data[v]);
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glTexSubImage2D(GL_TEXTURE_2D,0,frame.pitch[1],frame.h,frame.pitch[2],frame.h/2,format,GL_UNSIGNED_BYTE,frame.data[v]);
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if (glGetError() != 0) throw _T("Error uploadinv V plane.");
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}
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@ -558,20 +577,6 @@ void VideoContext::SaveSnapshot() {
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}
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////////////////////////
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// Requests a new frame
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AegiVideoFrame VideoContext::GetFrame(int n) {
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if (n == -1) n = frame_n;
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AegiVideoFrame frame = provider->GetFrame(n);
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if (subsProvider && subsProvider->CanRaster()) {
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tempFrame.CopyFrom(frame);
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subsProvider->DrawSubtitles(tempFrame,VFR_Input.GetTimeAtFrame(n,true,true)/1000.0);
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return tempFrame;
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}
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else return frame;
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}
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////////////////////////////
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// Get dimensions of script
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void VideoContext::GetScriptSize(int &sw,int &sh) {
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