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GL render manager: Simple implementation of synchronous framebuffer readbacks.

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Henrik Rydgård committed 2018-01-27 15:10:17 +01:00
1 parent 2b12776137
commit 49c3cb83fe
10 files changed
+246 -121
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ext/native/thin3d/DataFormatGL.cpp
+90
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#include "thin3d/DataFormatGL.h"
#include "base/logging.h"
#include "Common/Log.h"
namespace Draw {
// TODO: Also output storage format (GL_RGBA8 etc) for modern GL usage.
bool Thin3DFormatToFormatAndType(DataFormat fmt, GLuint &internalFormat, GLuint &format, GLuint &type, int &alignment) {
alignment = 4;
switch (fmt) {
case DataFormat::R8G8B8A8_UNORM:
internalFormat = GL_RGBA;
format = GL_RGBA;
type = GL_UNSIGNED_BYTE;
break;
case DataFormat::D32F:
internalFormat = GL_DEPTH_COMPONENT;
format = GL_DEPTH_COMPONENT;
type = GL_FLOAT;
break;
#ifndef USING_GLES2
case DataFormat::S8:
internalFormat = GL_STENCIL_INDEX;
format = GL_STENCIL_INDEX;
type = GL_UNSIGNED_BYTE;
alignment = 1;
break;
#endif
case DataFormat::R8G8B8_UNORM:
internalFormat = GL_RGB;
format = GL_RGB;
type = GL_UNSIGNED_BYTE;
alignment = 1;
break;
case DataFormat::B4G4R4A4_UNORM_PACK16:
internalFormat = GL_RGBA;
format = GL_RGBA;
type = GL_UNSIGNED_SHORT_4_4_4_4;
alignment = 2;
break;
case DataFormat::B5G6R5_UNORM_PACK16:
internalFormat = GL_RGB;
format = GL_RGB;
type = GL_UNSIGNED_SHORT_5_6_5;
alignment = 2;
break;
case DataFormat::B5G5R5A1_UNORM_PACK16:
internalFormat = GL_RGBA;
format = GL_RGBA;
type = GL_UNSIGNED_SHORT_5_5_5_1;
alignment = 2;
break;
#ifndef USING_GLES2
case DataFormat::A4R4G4B4_UNORM_PACK16:
internalFormat = GL_RGBA;
format = GL_RGBA;
type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
alignment = 2;
break;
case DataFormat::R5G6B5_UNORM_PACK16:
internalFormat = GL_RGB;
format = GL_RGB;
type = GL_UNSIGNED_SHORT_5_6_5_REV;
alignment = 2;
break;
case DataFormat::A1R5G5B5_UNORM_PACK16:
internalFormat = GL_RGBA;
format = GL_RGBA;
type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
alignment = 2;
break;
#endif
default:
_assert_msg_(G3D, false, "Thin3d GL: Unsupported texture format %d", (int)fmt);
return false;
}
return true;
}
}