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/**************************************************************************
*
* Copyright 2010 Christian König
* 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
* without limitation the rights to use, copy, modify, merge, publish,
* 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.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* 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.
*
**************************************************************************/
#ifndef vl_vertex_buffers_h
#define vl_vertex_buffers_h
#include <assert.h>
#include <pipe/p_state.h>
#include "vl_types.h"
struct vl_vertex_buffer
{
unsigned num_verts;
unsigned num_elements;
float *buffer;
};
struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe, unsigned max_blocks);
struct pipe_vertex_element vl_vb_get_quad_vertex_element();
struct pipe_vertex_buffer vl_vb_create_buffer(struct pipe_context *pipe, unsigned max_blocks, unsigned stride);
unsigned vl_vb_element_helper(struct pipe_vertex_element* elements, unsigned num_elements,
unsigned vertex_buffer_index);
bool vl_vb_init(struct vl_vertex_buffer *buffer, unsigned max_blocks, unsigned num_elements);
static inline void
vl_vb_add_block(struct vl_vertex_buffer *buffer, float *elements)
{
float *pos;
unsigned i;
assert(buffer);
for(i = 0; i < 4; ++i) {
pos = buffer->buffer + buffer->num_verts * buffer->num_elements;
memcpy(pos, elements, sizeof(float) * buffer->num_elements);
buffer->num_verts++;
}
}
unsigned vl_vb_upload(struct vl_vertex_buffer *buffer, void *dst);
void vl_vb_cleanup(struct vl_vertex_buffer *buffer);
#endif
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