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增加完整的dsa扩展检测

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This commit is contained in:
hyzboy 2018-12-08 19:32:22 +08:00
parent dda548dc6f
commit bb3009c5fb
5 changed files with 69 additions and 23 deletions
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20
inc/hgl/graph/RenderDriver.h
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@ -6,25 +6,9 @@ namespace hgl
{
namespace graph
{
/**
* 渲染驱动
* 用于对真实渲染API的交接管理
*/
class RenderDriver
{
private:
RenderStatus current_status;
public:
virtual void SetCurStatus(const RenderStatus &)=0;
virtual void ClearColorBuffer()=0;
virtual void ClearDepthBuffer()=0;
};//class RenderDriver
void InitOpenGLDebug();
bool IsSupportDSA();
}//namespace graph
}//namespace hgl
#endif//HGL_RENDER_DRIVER_INCLUDE

4
src/RenderDriver/CMakeLists.txt
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@ -1,11 +1,11 @@
add_library(ULRE.RenderDriver STATIC GLCore/RenderDriverGLCore.cpp
add_library(ULRE.RenderDriver STATIC OpenGLDebug.cpp
OpenGLExt.cpp
GLSL.cpp
Shader.cpp
VertexArray.cpp
VertexBuffer.cpp
VertexBufferControlDSA.cpp
VertexBufferControlBind.cpp
OpenGLDebug.cpp
TextureFormat.cpp
Texture1D.cpp
Texture1DDSA.cpp

62
src/RenderDriver/OpenGLExt.cpp
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@ -1,6 +1,66 @@
#include<GL/glcorearb.h>
#include<GLEWCore/glew.h>
namespace hgl
{
namespace graph
{
namespace
{
enum GLAPI_SUPPORT
{
gasNoSupport=-1,
gasNoCheck=0,
gasSupport=1
};
static GLAPI_SUPPORT support_dsa=gasNoCheck;
}
bool IsSupportDSA()
{
if(support_dsa==gasSupport)return(true);
//texture api
if(glCreateTextures
&&glGenerateTextureMipmap
&&glGetTextureLevelParameteriv
&&glGetTextureParameteriv
&&glGetCompressedTextureImage
&&glGetTextureImage
&&glBindTextureUnit
&&glCompressedTextureSubImage1D
&&glCompressedTextureSubImage2D
&&glTextureSubImage1D
&&glTextureSubImage2D
//sampler object
&&glGenSamplers
&&glBindSampler
&&glSamplerParameteri
&&glSamplerParameterfv
//vbo
&&glCreateBuffers
&&glNamedBufferData
&&glNamedBufferSubData
//vao
&&glCreateVertexArrays
&&glDeleteVertexArrays
&&glVertexArrayAttribBinding
&&glVertexArrayAttribFormat
&&glVertexArrayAttribIFormat
&&glVertexArrayAttribLFormat
&&glEnableVertexArrayAttrib
&&glVertexArrayVertexBuffer
)
{
support_dsa=gasSupport;
return(true);
}
support_dsa=gasNoSupport;
return(false);
}
}
}//namespace hgl

3
src/RenderDriver/Texture1D.cpp
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@ -1,5 +1,6 @@
#include<hgl/graph/Texture1D.h>
#include<hgl/LogInfo.h>
#include<hgl/graph/RenderDriver.h>
namespace hgl
{
@ -63,7 +64,7 @@ namespace hgl
Texture1D *CreateTexture1D()
{
// if(GLEW_VERSION_4_5||GLEW_ARB_direct_state_access||GL_EXT_direct_state_access)
// if(IsSupportDSA())
return CreateTexture1DDSA();
// else
// return CreateTexture1DBind();

3
src/RenderDriver/VertexBuffer.cpp
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@ -2,6 +2,7 @@
#include<hgl/graph/VertexArray.h>
#include<GLEWCore/glew.h>
#include"VertexBufferControl.h"
#include<hgl/graph/RenderDriver.h>
namespace hgl
{
@ -16,7 +17,7 @@ namespace hgl
void InitVertexBufferAPI()
{
if(GLEW_VERSION_4_5||GLEW_ARB_direct_state_access)
if(IsSupportDSA())
CreateVertexBufferControl=CreateVertexBufferControlDSA;
else
CreateVertexBufferControl=CreateVertexBufferControlBind;