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/*
* Copyright 2009 Maciej Cencora <m.cencora@gmail.com>
*
* 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
* on 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
* THE AUTHOR(S) AND/OR THEIR 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.
*/
/* r300_vbo: Various helpers for emitting vertex buffers. Needs cleanup,
* refactoring, etc. */
#include "r300_vbo.h"
#include "pipe/p_format.h"
#include "r300_cs.h"
#include "r300_context.h"
#include "r300_state_inlines.h"
#include "r300_reg.h"
#include "r300_winsys.h"
static INLINE void setup_vertex_attribute(struct r300_vertex_info *vinfo,
struct pipe_vertex_element *vert_elem,
unsigned attr_num)
{
uint16_t hw_fmt1, hw_fmt2;
hw_fmt1 = r300_translate_vertex_data_type(vert_elem->src_format) |
(attr_num << R300_DST_VEC_LOC_SHIFT);
hw_fmt2 = r300_translate_vertex_data_swizzle(vert_elem->src_format);
if (attr_num % 2 == 0)
{
vinfo->vap_prog_stream_cntl[attr_num >> 1] = hw_fmt1;
vinfo->vap_prog_stream_cntl_ext[attr_num >> 1] = hw_fmt2;
}
else
{
vinfo->vap_prog_stream_cntl[attr_num >> 1] |= hw_fmt1 << 16;
vinfo->vap_prog_stream_cntl_ext[attr_num >> 1] |= hw_fmt2 << 16;
}
}
static void finish_vertex_attribs_setup(struct r300_vertex_info *vinfo,
unsigned attribs_num)
{
uint32_t last_vec_bit = (attribs_num % 2 == 0) ?
(R300_LAST_VEC << 16) : R300_LAST_VEC;
assert(attribs_num > 0 && attribs_num <= 16);
vinfo->vap_prog_stream_cntl[(attribs_num - 1) >> 1] |= last_vec_bit;
}
void setup_vertex_attributes(struct r300_context *r300)
{
struct pipe_vertex_element *vert_elem;
int i;
for (i = 0; i < r300->vertex_element_count; i++) {
vert_elem = &r300->vertex_element[i];
setup_vertex_attribute(r300->vertex_info, vert_elem, i);
}
finish_vertex_attribs_setup(r300->vertex_info,
r300->vertex_element_count);
}
static INLINE int get_buffer_offset(struct r300_context *r300,
unsigned int buf_nr,
unsigned int elem_offset)
{
return r300->vertex_buffer[buf_nr].buffer_offset + elem_offset;
}
#if 0
/* XXX not called at all */
static void setup_vertex_buffers(struct r300_context *r300)
{
struct pipe_vertex_element *vert_elem;
int i;
for (i = 0; i < r300->aos_count; i++)
{
vert_elem = &r300->vertex_element[i];
/* XXX use translate module to convert the data */
if (!format_is_supported(vert_elem->src_format,
vert_elem->nr_components)) {
assert(0);
/*
struct pipe_buffer *buf;
const unsigned int max_index = r300->vertex_buffers[vert_elem->vertex_buffer_index].max_index;
buf = pipe_buffer_create(r300->context.screen, 4, usage, vert_elem->nr_components * max_index * sizeof(float));
*/
}
if (get_buffer_offset(r300,
vert_elem->vertex_buffer_index,
vert_elem->src_offset) % 4) {
/* XXX need to align buffer */
assert(0);
}
}
}
#endif
/* XXX these shouldn't be asserts since we can work around bad indexbufs */
void setup_index_buffer(struct r300_context *r300,
struct pipe_buffer* indexBuffer,
unsigned indexSize)
{
if (!r300->winsys->add_buffer(r300->winsys, indexBuffer,
RADEON_GEM_DOMAIN_GTT, 0)) {
assert(0);
}
if (!r300->winsys->validate(r300->winsys)) {
assert(0);
}
}
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