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

yet another take on VBO deleting and reference counting

Browse Source
This commit is contained in:
Brian Paul
2004-03-04 14:46:00 +00:00
parent 3f94cef027
commit 94ec525ba5
2 changed files with 54 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
src/mesa/main/bufferobj.c
View File

@@ -452,8 +452,60 @@ _mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids)
_mesa_HashLookup(ctx->Shared->BufferObjects, ids[i]);
if (bufObj) {
/* unbind any vertex pointers bound to this buffer */
GLuint j;
ASSERT(bufObj->Name == ids[i]);
if (ctx->Array.Vertex.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.Vertex.BufferObj = ctx->Array.NullBufferObj;
}
if (ctx->Array.Normal.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.Normal.BufferObj = ctx->Array.NullBufferObj;
}
if (ctx->Array.Color.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.Color.BufferObj = ctx->Array.NullBufferObj;
}
if (ctx->Array.SecondaryColor.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.SecondaryColor.BufferObj = ctx->Array.NullBufferObj;
}
if (ctx->Array.FogCoord.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.FogCoord.BufferObj = ctx->Array.NullBufferObj;
}
if (ctx->Array.Index.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.Index.BufferObj = ctx->Array.NullBufferObj;
}
if (ctx->Array.EdgeFlag.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.EdgeFlag.BufferObj = ctx->Array.NullBufferObj;
}
for (j = 0; j < MAX_TEXTURE_UNITS; j++) {
if (ctx->Array.TexCoord[j].BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.TexCoord[j].BufferObj = ctx->Array.NullBufferObj;
}
}
for (j = 0; j < VERT_ATTRIB_MAX; j++) {
if (ctx->Array.VertexAttrib[j].BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.VertexAttrib[j].BufferObj = ctx->Array.NullBufferObj;
}
}
if (ctx->Array.ArrayBufferObj == bufObj) {
_mesa_BindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
}
if (ctx->Array.ElementArrayBufferObj == bufObj) {
_mesa_BindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
}
/* decrement refcount and delete if <= 0 */
bufObj->DeletePending = GL_TRUE;
bufObj->RefCount--;
if (bufObj->RefCount <= 0) {
/* buffer should not be bound anymore! */
@@ -541,7 +593,7 @@ _mesa_IsBufferARB(GLuint id)
bufObj = (struct gl_buffer_object *) _mesa_HashLookup(ctx->Shared->BufferObjects, id);
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
return (bufObj != NULL);
return bufObj && !bufObj->DeletePending;
}

1
src/mesa/main/mtypes.h
View File

@@ -1329,6 +1329,7 @@ struct gl_buffer_object {
GLvoid *Pointer; /**< Only valid while buffer is mapped */
GLuint Size; /**< Size of data array in bytes */
GLubyte *Data; /**< The storage */
GLboolean DeletePending; /**< Deleted by user? */
};