127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef OPENGLCONTEXT_H
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#define OPENGLCONTEXT_H
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#include <QOffscreenSurface>
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#include <QOpenGLBuffer>
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#include <QOpenGLFunctions>
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#include <QOpenGLShader>
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#include <QOpenGLVertexArrayObject>
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#include <QThread>
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#include <QTimer>
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#include "render/renderer.h"
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namespace olive {
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class OpenGLRenderer : public Renderer
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{
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Q_OBJECT
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public:
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OpenGLRenderer(QObject* parent = nullptr);
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virtual ~OpenGLRenderer() override;
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void Init(QOpenGLContext* existing_ctx);
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virtual bool Init() override;
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virtual void PostDestroy() override;
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virtual void PostInit() override;
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virtual void ClearDestination(olive::Texture *texture = nullptr, double r = 0.0, double g = 0.0, double b = 0.0, double a = 0.0) override;
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virtual QVariant CreateNativeShader(olive::ShaderCode code) override;
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virtual void DestroyNativeShader(QVariant shader) override;
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virtual void UploadToTexture(const QVariant &handle, const VideoParams ¶ms, const void* data, int linesize) override;
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virtual void DownloadFromTexture(const QVariant &handle, const VideoParams ¶ms, void* data, int linesize) override;
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virtual void Flush() override;
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virtual Color GetPixelFromTexture(olive::Texture *texture, const QPointF &pt) override;
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protected:
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virtual void Blit(QVariant shader,
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olive::ShaderJob job,
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olive::Texture* destination,
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olive::VideoParams destination_params,
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bool clear_destination) override;
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virtual QVariant CreateNativeTexture(int width, int height, int depth, PixelFormat format, int channel_count, const void* data = nullptr, int linesize = 0) override;
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virtual void DestroyNativeTexture(QVariant texture) override;
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virtual void DestroyInternal() override;
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private:
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static GLint GetInternalFormat(PixelFormat format, int channel_layout);
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static GLenum GetPixelType(PixelFormat format);
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static GLenum GetPixelFormat(int channel_count);
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void AttachTextureAsDestination(const QVariant &texture);
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void DetachTextureAsDestination();
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void PrepareInputTexture(GLenum target, Texture::Interpolation interp);
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void ClearDestinationInternal(double r = 0.0, double g = 0.0, double b = 0.0, double a = 0.0);
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GLuint CompileShader(GLenum type, const QString &code);
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QOpenGLContext* context_;
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QOpenGLFunctions* functions_;
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QOffscreenSurface surface_;
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GLuint framebuffer_;
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struct TextureCacheKey {
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int width;
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int height;
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int depth;
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PixelFormat format;
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int channel_count;
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bool operator==(const TextureCacheKey &rhs) const
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{
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return width == rhs.width && height == rhs.height && depth == rhs.depth
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&& format == rhs.format && channel_count == rhs.channel_count;
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}
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};
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QMap<GLuint, TextureCacheKey> texture_params_;
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static const int kTextureCacheMaxSize;
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};
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}
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#endif // OPENGLCONTEXT_H
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