/**
* Update the fields of a vertex array structure.
* We need to do a few special things for arrays that live in
* vertex buffer objects.
*/
static void
update_array(GLcontext *ctx, struct gl_client_array *array,
GLuint dirtyFlag, GLsizei elementSize,
GLint size, GLenum type,
GLsizei stride, GLboolean normalized, const GLvoid *ptr)
{
array->Size = size;
array->Type = type;
array->Stride = stride;
array->StrideB = stride ? stride : elementSize;
array->Normalized = normalized;
array->Ptr = (const GLubyte *) ptr;
#if FEATURE_ARB_vertex_buffer_object
array->BufferObj->RefCount--;
if (array->BufferObj->RefCount <= 0) {
ASSERT(array->BufferObj->Name);
_mesa_remove_buffer_object( ctx, array->BufferObj );
(*ctx->Driver.DeleteBuffer)( ctx, array->BufferObj );
}
array->BufferObj = ctx->Array.ArrayBufferObj;
array->BufferObj->RefCount++;
/* Compute the index of the last array element that's inside the buffer.
* Later in glDrawArrays we'll check if start + count > _MaxElement to
* be sure we won't go out of bounds.
*/
if (ctx->Array.ArrayBufferObj->Name)
array->_MaxElement = ((GLsizeiptrARB) ctx->Array.ArrayBufferObj->Size
- (GLsizeiptrARB) array->Ptr) / array->StrideB;
else
#endif
array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */
ctx->NewState |= _NEW_ARRAY;
ctx->Array.NewState |= dirtyFlag;
}
/**
* Delete a set of buffer objects.
*
* \param n Number of buffer objects to delete.
* \param ids Array of \c n buffer object IDs.
*/
void GLAPIENTRY
_mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids)
{
GET_CURRENT_CONTEXT(ctx);
GLsizei i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (n < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glDeleteBuffersARB(n)");
return;
}
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
for (i = 0; i < n; i++) {
if (ids[i] != 0) {
struct gl_buffer_object *bufObj = (struct gl_buffer_object *)
_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;
ctx->Array.NullBufferObj->RefCount++;
}
if (ctx->Array.Normal.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.Normal.BufferObj = ctx->Array.NullBufferObj;
ctx->Array.NullBufferObj->RefCount++;
}
if (ctx->Array.Color.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.Color.BufferObj = ctx->Array.NullBufferObj;
ctx->Array.NullBufferObj->RefCount++;
}
if (ctx->Array.SecondaryColor.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.SecondaryColor.BufferObj = ctx->Array.NullBufferObj;
ctx->Array.NullBufferObj->RefCount++;
}
if (ctx->Array.FogCoord.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.FogCoord.BufferObj = ctx->Array.NullBufferObj;
ctx->Array.NullBufferObj->RefCount++;
}
if (ctx->Array.Index.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.Index.BufferObj = ctx->Array.NullBufferObj;
ctx->Array.NullBufferObj->RefCount++;
}
if (ctx->Array.EdgeFlag.BufferObj == bufObj) {
bufObj->RefCount--;
ctx->Array.EdgeFlag.BufferObj = ctx->Array.NullBufferObj;
ctx->Array.NullBufferObj->RefCount++;
}
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;
ctx->Array.NullBufferObj->RefCount++;
}
}
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;
ctx->Array.NullBufferObj->RefCount++;
}
}
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 );
}
if (ctx->Pack.BufferObj == bufObj) {
_mesa_BindBufferARB( GL_PIXEL_PACK_BUFFER_EXT, 0 );
}
if (ctx->Unpack.BufferObj == bufObj) {
_mesa_BindBufferARB( GL_PIXEL_UNPACK_BUFFER_EXT, 0 );
}
/* The ID is immediately freed for re-use */
_mesa_remove_buffer_object(ctx, bufObj);
bufObj->RefCount--;
if (bufObj->RefCount <= 0) {
ASSERT(ctx->Array.ArrayBufferObj != bufObj);
ASSERT(ctx->Array.ElementArrayBufferObj != bufObj);
ASSERT(ctx->Array.Vertex.BufferObj != bufObj);
ASSERT(ctx->Driver.DeleteBuffer);
ctx->Driver.DeleteBuffer(ctx, bufObj);
}
}
}
}
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
}
