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VideoBackends: Add AbstractStagingTexture class

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Can be used for asynchronous readback or upload of textures.
This commit is contained in:
Stenzek
2017-10-22 00:49:40 +10:00
parent a584ccc7d8
commit f43d85921d
33 changed files with 1220 additions and 12 deletions
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32
Source/Core/VideoBackends/OGL/OGLTexture.h
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@ -8,6 +8,7 @@
#include "Common/GL/GLUtil.h"
#include "VideoCommon/AbstractStagingTexture.h"
#include "VideoCommon/AbstractTexture.h"
namespace OGL
@ -43,4 +44,35 @@ private:
std::vector<u8> m_staging_data;
};
class OGLStagingTexture final : public AbstractStagingTexture
{
public:
OGLStagingTexture() = delete;
~OGLStagingTexture();
void CopyFromTexture(const AbstractTexture* src, const MathUtil::Rectangle<int>& src_rect,
u32 src_layer, u32 src_level,
const MathUtil::Rectangle<int>& dst_rect) override;
void CopyToTexture(const MathUtil::Rectangle<int>& src_rect, AbstractTexture* dst,
const MathUtil::Rectangle<int>& dst_rect, u32 dst_layer,
u32 dst_level) override;
bool Map() override;
void Unmap() override;
void Flush() override;
static std::unique_ptr<OGLStagingTexture> Create(StagingTextureType type,
const TextureConfig& config);
private:
OGLStagingTexture(StagingTextureType type, const TextureConfig& config, GLenum target,
GLuint buffer_name, size_t buffer_size, char* map_ptr, size_t map_stride);
private:
GLenum m_target;
GLuint m_buffer_name;
size_t m_buffer_size;
GLsync m_fence = 0;
};
} // namespace OGL