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0022819: Redesign of OpenGl driver

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This commit is contained in:
SAN, KGV
2012-02-03 12:59:15 +00:00
committed by bugmaster
parent 1d2b1ccb45
commit 2166f0fad8
362 changed files with 19749 additions and 57863 deletions
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84
src/OpenGl/OpenGl_FrameBuffer.hxx
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@@ -1,37 +1,15 @@
// File: OpenGl_FrameBuffer.hxx
// Author: Kirill GAVRILOV
// Copyright: OPEN CASCADE 2011
#ifndef OPENGL_FRAME_BUFFER_H
#define OPENGL_FRAME_BUFFER_H
#include <OpenGl_Extension.hxx>
#include <OpenGl_Context.hxx>
#include <Standard_Boolean.hxx>
#include <InterfaceGraphic.hxx>
#ifndef GL_FRAMEBUFFER_EXT
#define GL_FRAMEBUFFER_EXT 0x8D40
#endif
#ifndef GL_COLOR_ATTACHMENT0_EXT
#define GL_COLOR_ATTACHMENT0_EXT 0x8CE0
#endif
#ifndef GL_FRAMEBUFFER_COMPLETE_EXT
#define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5
#endif
#ifndef GL_RENDERBUFFER_EXT
#define GL_RENDERBUFFER_EXT 0x8D41
#endif
#ifndef GL_DEPTH_ATTACHMENT_EXT
#define GL_DEPTH_ATTACHMENT_EXT 0x8D00
#endif
#ifdef WNT
#define GL_API_ENTRY APIENTRY
#else
#define GL_API_ENTRY
#endif
class OpenGl_FrameBuffer
{
@@ -42,33 +20,13 @@ public:
static const GLuint NO_FRAMEBUFFER = 0;
static const GLuint NO_RENDERBUFFER = 0;
public:
typedef void (GL_API_ENTRY *glGenFramebuffersEXT_t) (GLsizei n, GLuint* ids);
typedef void (GL_API_ENTRY *glDeleteFramebuffersEXT_t) (GLsizei n, GLuint* ids);
typedef void (GL_API_ENTRY *glBindFramebufferEXT_t) (GLenum target, GLuint id);
typedef void (GL_API_ENTRY *glFramebufferTexture2DEXT_t) (GLenum target, GLenum attachmentPoint,
GLenum textureTarget, GLuint textureId,
GLint level);
typedef GLenum (GL_API_ENTRY *glCheckFramebufferStatusEXT_t) (GLenum target);
typedef void (GL_API_ENTRY *glGenRenderbuffersEXT_t) (GLsizei n, GLuint* ids);
typedef void (GL_API_ENTRY *glDeleteRenderbuffersEXT_t) (GLsizei n, GLuint* ids);
typedef void (GL_API_ENTRY *glBindRenderbufferEXT_t) (GLenum target, GLuint id);
typedef void (GL_API_ENTRY *glRenderbufferStorageEXT_t) (GLenum target, GLenum internalFormat,
GLsizei width, GLsizei height);
typedef void (GL_API_ENTRY *glFramebufferRenderbufferEXT_t) (GLenum target,
GLenum attachmentPoint,
GLenum renderbufferTarget,
GLuint renderbufferId);
public:
OpenGl_FrameBuffer (GLint theTextureFormat = GL_RGBA8);
virtual ~OpenGl_FrameBuffer()
{
Release();
Release (Handle(OpenGl_Context)());
}
//! Texture width.
@@ -109,12 +67,13 @@ public:
//! current implementation will try to generate compatible FBO;
//! 2) FBO rendering will be done in software mode (ForceWare 'hack');
//! 3) FBO rendering will be incorrect (some obsolete Catalyst drivers).
Standard_Boolean Init (GLsizei theViewportSizeX,
Standard_Boolean Init (const Handle(OpenGl_Context)& theGlContext,
GLsizei theViewportSizeX,
GLsizei theViewportSizeY,
GLboolean toForcePowerOfTwo = GL_FALSE);
//! Release GL objects
void Release();
void Release (const Handle(OpenGl_Context)& theGlContext);
//! Setup viewport to render into FBO
void SetupViewport()
@@ -131,15 +90,15 @@ public:
}
//! Bind frame buffer (to render into the texture).
void BindBuffer()
void BindBuffer (const Handle(OpenGl_Context)& theGlContext)
{
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, myGlFBufferId);
theGlContext->extFBO->glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, myGlFBufferId);
}
//! Unbind frame buffer.
void UnbindBuffer()
void UnbindBuffer (const Handle(OpenGl_Context)& theGlContext)
{
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, NO_FRAMEBUFFER);
theGlContext->extFBO->glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, NO_FRAMEBUFFER);
}
//! Bind the texture.
@@ -162,7 +121,7 @@ private:
Standard_Boolean IsProxySuccess() const;
//! Generate texture with undefined data
Standard_Boolean InitTrashTexture();
Standard_Boolean InitTrashTexture (const Handle(OpenGl_Context)& theGlContext);
Standard_Boolean IsValidTexture() const
{
@@ -179,9 +138,6 @@ private:
return myGlTextureId != NO_RENDERBUFFER;
}
Standard_Boolean AreFBOFunctionsValid();
Standard_Boolean InitFBOFunctions();
private:
GLsizei mySizeX; // texture width
@@ -193,18 +149,6 @@ private:
GLuint myGlFBufferId; // FBO object ID
GLuint myGlDepthRBId; // RenderBuffer object for depth ID
// functions
glGenFramebuffersEXT_t glGenFramebuffersEXT;
glDeleteFramebuffersEXT_t glDeleteFramebuffersEXT;
glBindFramebufferEXT_t glBindFramebufferEXT;
glFramebufferTexture2DEXT_t glFramebufferTexture2DEXT;
glCheckFramebufferStatusEXT_t glCheckFramebufferStatusEXT;
glGenRenderbuffersEXT_t glGenRenderbuffersEXT;
glDeleteRenderbuffersEXT_t glDeleteRenderbuffersEXT;
glBindRenderbufferEXT_t glBindRenderbufferEXT;
glRenderbufferStorageEXT_t glRenderbufferStorageEXT;
glFramebufferRenderbufferEXT_t glFramebufferRenderbufferEXT;
};
#endif //OPENGL_FRAME_BUFFER_H