OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mesa: clean-up vertex array object VBO unbinding and delete/refcounting

Browse Source 
Don't really delete vertex array objects until the refcount hits zero.
At that time, unbind any pointers to VBOs.
(cherry picked from commit 32b851c807)
This commit is contained in:
Brian Paul
2009-05-13 09:32:53 -06:00
parent 5568f2f601
commit 7ae4ce9e22
1 changed files with 33 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
src/mesa/main/arrayobj.c
View File

@@ -68,6 +68,32 @@ lookup_arrayobj(GLcontext *ctx, GLuint id)
}
/**
* For all the vertex arrays in the array object, unbind any pointers
* to any buffer objects (VBOs).
* This is done just prior to array object destruction.
*/
static void
unbind_array_object_vbos(GLcontext *ctx, struct gl_array_object *obj)
{
GLuint i;
_mesa_reference_buffer_object(ctx, &obj->Vertex.BufferObj, NULL);
_mesa_reference_buffer_object(ctx, &obj->Normal.BufferObj, NULL);
_mesa_reference_buffer_object(ctx, &obj->Color.BufferObj, NULL);
_mesa_reference_buffer_object(ctx, &obj->SecondaryColor.BufferObj, NULL);
_mesa_reference_buffer_object(ctx, &obj->FogCoord.BufferObj, NULL);
_mesa_reference_buffer_object(ctx, &obj->Index.BufferObj, NULL);
_mesa_reference_buffer_object(ctx, &obj->EdgeFlag.BufferObj, NULL);
for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++)
_mesa_reference_buffer_object(ctx, &obj->TexCoord[i].BufferObj, NULL);
for (i = 0; i < VERT_ATTRIB_MAX; i++)
_mesa_reference_buffer_object(ctx, &obj->VertexAttrib[i].BufferObj,NULL);
}
/**
* Allocate and initialize a new vertex array object.
*
@@ -94,6 +120,7 @@ void
_mesa_delete_array_object( GLcontext *ctx, struct gl_array_object *obj )
{
(void) ctx;
unbind_array_object_vbos(ctx, obj);
_glthread_DESTROY_MUTEX(obj->Mutex);
_mesa_free(obj);
}
@@ -239,15 +266,6 @@ _mesa_remove_array_object( GLcontext *ctx, struct gl_array_object *obj )
}
static void
unbind_buffer_object( GLcontext *ctx, struct gl_buffer_object *bufObj )
{
if (bufObj != ctx->Array.NullBufferObj) {
_mesa_reference_buffer_object(ctx, &bufObj, NULL);
}
}
/**********************************************************************/
/* API Functions */
/**********************************************************************/
@@ -274,7 +292,7 @@ _mesa_BindVertexArrayAPPLE( GLuint id )
return; /* rebinding the same array object- no change */
/*
* Get pointer to new array object (newBufObj)
* Get pointer to new array object (newObj)
*/
if (id == 0) {
/* The spec says there is no array object named 0, but we use
@@ -333,7 +351,6 @@ _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids)
if ( obj != NULL ) {
ASSERT( obj->Name == ids[i] );
/* If the array object is currently bound, the spec says "the binding
* for that object reverts to zero and the default vertex array
* becomes current."
@@ -342,28 +359,13 @@ _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids)
CALL_BindVertexArrayAPPLE( ctx->Exec, (0) );
}
#if FEATURE_ARB_vertex_buffer_object
/* Unbind any buffer objects that might be bound to arrays in
* this array object.
*/
unbind_buffer_object( ctx, obj->Vertex.BufferObj );
unbind_buffer_object( ctx, obj->Normal.BufferObj );
unbind_buffer_object( ctx, obj->Color.BufferObj );
unbind_buffer_object( ctx, obj->SecondaryColor.BufferObj );
unbind_buffer_object( ctx, obj->FogCoord.BufferObj );
unbind_buffer_object( ctx, obj->Index.BufferObj );
for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
unbind_buffer_object( ctx, obj->TexCoord[i].BufferObj );
}
unbind_buffer_object( ctx, obj->EdgeFlag.BufferObj );
for (i = 0; i < VERT_ATTRIB_MAX; i++) {
unbind_buffer_object( ctx, obj->VertexAttrib[i].BufferObj );
}
#endif
/* The ID is immediately freed for re-use */
_mesa_remove_array_object(ctx, obj);
ctx->Driver.DeleteArrayObject(ctx, obj);
/* Unreference the array object.
* If refcount hits zero, the object will be deleted.
*/
_mesa_reference_array_object(ctx, &obj, NULL);
}
}