#include <GLHQLiteScaler.hh>
Public Member Functions | |
| GLHQLiteScaler (GLScaler &fallback, unsigned maxWidth, unsigned maxHeight) | |
| void | scaleImage (gl::ColorTexture &src, gl::ColorTexture *superImpose, unsigned srcStartY, unsigned srcEndY, unsigned srcWidth, unsigned dstStartY, unsigned dstEndY, unsigned dstWidth, unsigned logSrcHeight) override |
| Scales the image in the given area, which must consist of lines which are all equally wide. | |
| void | uploadBlock (unsigned srcStartY, unsigned srcEndY, unsigned lineWidth, FrameSource &paintFrame) override |
 Public Member Functions inherited from openmsx::GLScaler | |
| virtual | ~GLScaler ()=default |
| void | setup (bool superImpose) |
| Setup scaler. | |
Additional Inherited Members | |
| Protected Member Functions inherited from openmsx::GLScaler | |
| GLScaler (const std::string &progName) | |
| void | execute (const gl::ColorTexture &src, const gl::ColorTexture *superImpose, unsigned srcStartY, unsigned srcEndY, unsigned srcWidth, unsigned dstStartY, unsigned dstEndY, unsigned dstWidth, unsigned logSrcHeight, bool textureFromZero=false) |
| Helper method to draw a rectangle with multiple texture coordinates. | |
| Protected Attributes inherited from openmsx::GLScaler | |
| std::array< gl::BufferObject, 2 > | vbo |
| std::array< gl::ShaderProgram, 2 > | program |
| std::array< GLint, 2 > | unifTexSize |
| std::array< GLint, 2 > | unifMvpMatrix |
Detailed Description
Definition at line 12 of file GLHQLiteScaler.hh.
Constructor & Destructor Documentation
◆ GLHQLiteScaler()
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explicit |
Definition at line 19 of file GLHQLiteScaler.cc.
References gl::PixelBuffer< T >::allocate(), gl::Texture::bind(), openmsx::DiskImageUtils::format(), openmsx::File::mmap(), OPENGL_3_3, OPENGL_VERSION, openmsx::GLScaler::program, openmsx::systemFileContext(), and xrange().
Member Function Documentation
◆ scaleImage()
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overridevirtual |
Scales the image in the given area, which must consist of lines which are all equally wide.
Scaling factor depends on the concrete scaler.
- Parameters
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src Source: texture containing the frame to be scaled. superImpose Texture containing the to-be-superimposed image (can be nullptr). srcStartY Y-coordinate of the top source line (inclusive). srcEndY Y-coordinate of the bottom source line (exclusive). srcWidth The number of pixels per line for the given area. dstStartY Y-coordinate of the top destination line (inclusive). dstEndY Y-coordinate of the bottom destination line (exclusive). dstWidth The number of pixels per line on the output screen. logSrcHeight The logical height of the complete src texture (actual texture height can be double as high in case of non-interlace). This is needed to translate src-Y-coordinates to superImpose-Y-coordinates.
Implements openmsx::GLScaler.
Definition at line 75 of file GLHQLiteScaler.cc.
References gl::Texture::bind(), openmsx::GLScaler::execute(), gl::ColorTexture::getHeight(), gl::ColorTexture::getWidth(), openmsx::GLScaler::scaleImage(), gl::Texture::setInterpolation(), and openmsx::GLScaler::setup().
◆ uploadBlock()
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overridevirtual |
Reimplemented from openmsx::GLScaler.
Definition at line 109 of file GLHQLiteScaler.cc.
References gl::Texture::bind(), gl::PixelBuffer< T >::bind(), openmsx::calcEdgesGL(), ranges::fill(), openmsx::DiskImageUtils::format(), openmsx::FrameSource::getLine(), gl::PixelBuffer< T >::mapWrite(), OPENGL_3_3, OPENGL_VERSION, subspan(), gl::PixelBuffer< T >::unbind(), gl::PixelBuffer< T >::unmap(), VLA_SSE_ALIGNED, and xrange().
The documentation for this class was generated from the following files:
