/**************************************************************************
- *
+ *
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
- *
+ *
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
- *
+ *
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
+ *
**************************************************************************/
#include "st_context.h"
#include "st_cb_bufferobjects.h"
+#include "st_debug.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
if (!st_obj)
return NULL;
- _mesa_initialize_buffer_object(&st_obj->Base, name, target);
+ _mesa_initialize_buffer_object(ctx, &st_obj->Base, name, target);
return &st_obj->Base;
}
assert(obj->RefCount == 0);
assert(st_obj->transfer == NULL);
- if (st_obj->buffer)
+ if (st_obj->buffer)
pipe_resource_reference(&st_obj->buffer, NULL);
+ free(st_obj->Base.Label);
free(st_obj);
}
if (!data)
return;
+ if (!st_obj->buffer) {
+ /* we probably ran out of memory during buffer allocation */
+ return;
+ }
+
/* Now that transfers are per-context, we don't have to figure out
* flushing here. Usually drivers won't need to flush in this case
* even if the buffer is currently referenced by hardware - they
if (!size)
return;
+ if (!st_obj->buffer) {
+ /* we probably ran out of memory during buffer allocation */
+ return;
+ }
+
pipe_buffer_read(st_context(ctx)->pipe, st_obj->buffer,
offset, size, data);
}
GLenum target,
GLsizeiptrARB size,
const GLvoid * data,
- GLenum usage,
+ GLenum usage,
struct gl_buffer_object *obj)
{
struct st_context *st = st_context(ctx);
struct st_buffer_object *st_obj = st_buffer_object(obj);
unsigned bind, pipe_usage;
+ if (size && data && st_obj->buffer &&
+ st_obj->Base.Size == size && st_obj->Base.Usage == usage) {
+ /* Just discard the old contents and write new data.
+ * This should be the same as creating a new buffer, but we avoid
+ * a lot of validation in Mesa.
+ */
+ struct pipe_box box;
+
+ u_box_1d(0, size, &box);
+ pipe->transfer_inline_write(pipe, st_obj->buffer, 0,
+ PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE,
+ &box, data, 0, 0);
+ return GL_TRUE;
+ }
+
st_obj->Base.Size = size;
st_obj->Base.Usage = usage;
-
- switch(target) {
+
+ switch (target) {
case GL_PIXEL_PACK_BUFFER_ARB:
case GL_PIXEL_UNPACK_BUFFER_ARB:
bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
case GL_ELEMENT_ARRAY_BUFFER_ARB:
bind = PIPE_BIND_INDEX_BUFFER;
break;
+ case GL_TEXTURE_BUFFER:
+ bind = PIPE_BIND_SAMPLER_VIEW;
+ break;
+ case GL_TRANSFORM_FEEDBACK_BUFFER:
+ bind = PIPE_BIND_STREAM_OUTPUT;
+ break;
+ case GL_UNIFORM_BUFFER:
+ bind = PIPE_BIND_CONSTANT_BUFFER;
+ break;
default:
bind = 0;
}
pipe_resource_reference( &st_obj->buffer, NULL );
+ if (ST_DEBUG & DEBUG_BUFFER) {
+ debug_printf("Create buffer size %td bind 0x%x\n", size, bind);
+ }
+
if (size != 0) {
st_obj->buffer = pipe_buffer_create(pipe->screen, bind,
pipe_usage, size);
if (!st_obj->buffer) {
+ /* out of memory */
+ st_obj->Base.Size = 0;
return GL_FALSE;
}
if (data)
pipe_buffer_write(pipe, st_obj->buffer, 0, size, data);
- return GL_TRUE;
}
+ /* BufferData may change an array or uniform buffer, need to update it */
+ st->dirty.st |= ST_NEW_VERTEX_ARRAYS | ST_NEW_UNIFORM_BUFFER;
+
return GL_TRUE;
}
-/**
- * Dummy data whose's pointer is used for zero size buffers or ranges.
- */
-static long st_bufferobj_zero_length = 0;
-
-
-
/**
* Called via glMapBufferRange().
*/
else
flags |= PIPE_TRANSFER_DISCARD_RANGE;
}
-
+
if (access & GL_MAP_UNSYNCHRONIZED_BIT)
flags |= PIPE_TRANSFER_UNSYNCHRONIZED;
assert(offset < obj->Size);
assert(offset + length <= obj->Size);
- /*
- * We go out of way here to hide the degenerate yet valid case of zero
- * length range from the pipe driver.
- */
- if (!length) {
- obj->Pointer = &st_bufferobj_zero_length;
- }
- else {
- obj->Pointer = pipe_buffer_map_range(pipe,
- st_obj->buffer,
- offset, length,
- flags,
- &st_obj->transfer);
- if (obj->Pointer) {
- obj->Pointer = (ubyte *) obj->Pointer + offset;
- }
- }
-
+ obj->Pointer = pipe_buffer_map_range(pipe,
+ st_obj->buffer,
+ offset, length,
+ flags,
+ &st_obj->transfer);
if (obj->Pointer) {
obj->Offset = offset;
obj->Length = length;
obj->AccessFlags = access;
}
+ else {
+ st_obj->transfer = NULL;
+ }
return obj->Pointer;
}
assert(length >= 0);
assert(offset + length <= obj->Length);
assert(obj->Pointer);
-
+
if (!length)
return;
- pipe_buffer_flush_mapped_range(pipe, st_obj->transfer,
+ pipe_buffer_flush_mapped_range(pipe, st_obj->transfer,
obj->Offset + offset, length);
}
struct st_buffer_object *dstObj = st_buffer_object(dst);
struct pipe_box box;
- if(!size)
+ if (!size)
return;
/* buffer should not already be mapped */
projects / mesa.git / blobdiff