FGFS-4.1/OpenSceneGraph
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Added FBO deletion support, and better FBO querry and fallback mechansim in RenderStage.

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This commit is contained in:
Robert Osfield
2005-11-24 15:18:12 +00:00
parent 09bfbeec8b
commit 736a8433ca
5 changed files with 229 additions and 38 deletions
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63
include/osg/FrameBufferObject
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@@ -95,9 +95,11 @@ namespace osg
{
public:
typedef void APIENTRY TglBindRenderbufferEXT(GLenum, GLuint);
typedef void APIENTRY TglDeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers);
typedef void APIENTRY TglGenRenderbuffersEXT(GLsizei, GLuint *);
typedef void APIENTRY TglRenderbufferStorageEXT(GLenum, GLenum, GLsizei, GLsizei);
typedef void APIENTRY TglBindFramebufferEXT(GLenum, GLuint);
typedef void APIENTRY TglDeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers);
typedef void APIENTRY TglGenFramebuffersEXT(GLsizei, GLuint *);
typedef GLenum APIENTRY TglCheckFramebufferStatusEXT(GLenum);
typedef void APIENTRY TglFramebufferTexture1DEXT(GLenum, GLenum, GLenum, GLuint, GLint);
@@ -106,19 +108,21 @@ namespace osg
typedef void APIENTRY TglFramebufferRenderbufferEXT(GLenum, GLenum, GLenum, GLuint);
typedef void APIENTRY TglGenerateMipmapEXT(GLenum);
TglBindRenderbufferEXT *glBindRenderbufferEXT;
TglGenRenderbuffersEXT *glGenRenderbuffersEXT;
TglRenderbufferStorageEXT *glRenderbufferStorageEXT;
TglBindFramebufferEXT *glBindFramebufferEXT;
TglGenFramebuffersEXT *glGenFramebuffersEXT;
TglCheckFramebufferStatusEXT *glCheckFramebufferStatusEXT;
TglFramebufferTexture1DEXT *glFramebufferTexture1DEXT;
TglFramebufferTexture2DEXT *glFramebufferTexture2DEXT;
TglFramebufferTexture3DEXT *glFramebufferTexture3DEXT;
TglFramebufferRenderbufferEXT *glFramebufferRenderbufferEXT;
TglGenerateMipmapEXT *glGenerateMipmapEXT;
TglBindRenderbufferEXT* glBindRenderbufferEXT;
TglGenRenderbuffersEXT* glGenRenderbuffersEXT;
TglDeleteRenderbuffersEXT* glDeleteRenderbuffersEXT;
TglRenderbufferStorageEXT* glRenderbufferStorageEXT;
TglBindFramebufferEXT* glBindFramebufferEXT;
TglDeleteFramebuffersEXT* glDeleteFramebuffersEXT;
TglGenFramebuffersEXT* glGenFramebuffersEXT;
TglCheckFramebufferStatusEXT* glCheckFramebufferStatusEXT;
TglFramebufferTexture1DEXT* glFramebufferTexture1DEXT;
TglFramebufferTexture2DEXT* glFramebufferTexture2DEXT;
TglFramebufferTexture3DEXT* glFramebufferTexture3DEXT;
TglFramebufferRenderbufferEXT* glFramebufferRenderbufferEXT;
TglGenerateMipmapEXT* glGenerateMipmapEXT;
static FBOExtensions *instance(unsigned contextID)
static FBOExtensions* instance(unsigned contextID)
{
static buffered_object<FBOExtensions *> _instances;
FBOExtensions *ext = _instances[contextID];
@@ -148,7 +152,7 @@ namespace osg
public:
RenderBuffer();
RenderBuffer(int width, int height, GLenum internalFormat);
RenderBuffer(const RenderBuffer &copy, const CopyOp &copyop = CopyOp::SHALLOW_COPY);
RenderBuffer(const RenderBuffer& copy, const CopyOp& copyop = CopyOp::SHALLOW_COPY);
META_Object(osg, RenderBuffer);
@@ -163,8 +167,18 @@ namespace osg
GLuint getObjectID(unsigned int contextID, const FBOExtensions *ext) const;
inline int compare(const RenderBuffer &rb) const;
/** Mark internal RenderBuffer for deletion.
* Deletion requests are queued until they can be executed
* in the proper GL context. */
static void deleteRenderBuffer(unsigned int contextID, GLuint rb);
/** flush all the cached RenderBuffers which need to be deleted
* in the OpenGL context related to contextID.*/
static void flushDeletedRenderBuffers(unsigned int contextID,double currentTime, double& availableTime);
protected:
virtual ~RenderBuffer() {}
virtual ~RenderBuffer();
RenderBuffer &operator=(const RenderBuffer &) { return *this; }
inline void dirtyAll() const;
@@ -249,7 +263,7 @@ namespace osg
{
public:
FrameBufferAttachment();
FrameBufferAttachment(const FrameBufferAttachment &copy);
FrameBufferAttachment(const FrameBufferAttachment& copy);
explicit FrameBufferAttachment(RenderBuffer* target);
explicit FrameBufferAttachment(Texture1D* target, int level = 0);
@@ -261,9 +275,9 @@ namespace osg
~FrameBufferAttachment();
FrameBufferAttachment &operator = (const FrameBufferAttachment &copy);
FrameBufferAttachment&operator = (const FrameBufferAttachment& copy);
void createRequiredTexturesAndApplyGenerateMipMap(State &state, const FBOExtensions* ext) const;
void createRequiredTexturesAndApplyGenerateMipMap(State& state, const FBOExtensions* ext) const;
void attach(State &state, GLenum attachment_point, const FBOExtensions* ext) const;
int compare(const FrameBufferAttachment &fa) const;
@@ -283,7 +297,7 @@ namespace osg
typedef std::map<GLenum, FrameBufferAttachment> AttachmentMap;
FrameBufferObject();
FrameBufferObject(const FrameBufferObject &copy, const CopyOp &copyop = CopyOp::SHALLOW_COPY);
FrameBufferObject(const FrameBufferObject& copy, const CopyOp& copyop = CopyOp::SHALLOW_COPY);
META_StateAttribute(osg, FrameBufferObject, (StateAttribute::Type)0x101010/*FrameBufferObject*/);
@@ -295,9 +309,18 @@ namespace osg
int compare(const StateAttribute &sa) const;
void apply(State &state) const;
/** Mark internal FBO for deletion.
* Deletion requests are queued until they can be executed
* in the proper GL context. */
static void deleteFrameBufferObject(unsigned int contextID, GLuint program);
/** flush all the cached FBOs which need to be deleted
* in the OpenGL context related to contextID.*/
static void flushDeletedFrameBufferObjects(unsigned int contextID,double currentTime, double& availableTime);
protected:
virtual ~FrameBufferObject() {}
FrameBufferObject &operator=(const FrameBufferObject &) { return *this; }
virtual ~FrameBufferObject();
FrameBufferObject& operator = (const FrameBufferObject&) { return *this; }
inline void dirtyAll();