65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
#include "openglexporter.h"
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#include "render/backend/opengl/functions.h"
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OpenGLExporter::OpenGLExporter(ViewerOutput* viewer, const VideoRenderingParams& params, const QMatrix4x4& transform, ColorProcessorPtr color_processor, QObject* parent) :
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Exporter(viewer, params, transform, color_processor, parent)
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{
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}
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OpenGLExporter::~OpenGLExporter()
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{
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}
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bool OpenGLExporter::Initialize()
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{
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QOpenGLContext* ctx = QOpenGLContext::currentContext();
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// Create rendering backends
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video_backend_ = new OpenGLBackend();
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audio_backend_ = new AudioBackend();
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// Create blitting framebuffer and texture
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buffer_.Create(ctx);
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texture_ = std::make_shared<OpenGLTexture>();
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texture_->Create(ctx, params_.effective_width(), params_.effective_height(), params_.format());
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pipeline_ = OpenGLShader::CreateDefault();
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return true;
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}
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void OpenGLExporter::Cleanup()
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{
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texture_->Destroy();
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buffer_.Destroy();
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}
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FramePtr OpenGLExporter::TextureToFrame(const QVariant& texture)
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{
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FramePtr frame = Frame::Create();
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frame->set_width(params_.width());
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frame->set_height(params_.height());
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frame->set_format(params_.format());
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frame->allocate();
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// Blit for transform if the width/height are different
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OpenGLTexturePtr input_tex = texture.value<OpenGLTexturePtr>();
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if (input_tex) {
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buffer_.Attach(texture_);
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buffer_.Bind();
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input_tex->Bind();
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olive::gl::Blit(pipeline_, false, transform_);
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input_tex->Release();
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buffer_.Release();
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buffer_.Detach();
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}
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// Perform OpenGL read
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return frame;
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}
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