src/gallium/drivers/r300/r300_vbo.c

   1 /*
   2  * Copyright 2009 Maciej Cencora <m.cencora@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /* r300_vbo: Various helpers for emitting vertex buffers. Needs cleanup,
  25  * refactoring, etc. */
  26
  27 #include "r300_vbo.h"
  28
  29 #include "pipe/p_format.h"
  30
  31 #include "r300_cs.h"
  32 #include "r300_context.h"
  33 #include "r300_state_inlines.h"
  34 #include "r300_reg.h"
  35
  36 #include "radeon_winsys.h"
  37
  38 static INLINE int get_buffer_offset(struct r300_context *r300,
  39                                     unsigned int buf_nr,
  40                                     unsigned int elem_offset)
  41 {
  42     return r300->vertex_buffer[buf_nr].buffer_offset + elem_offset;
  43 }
  44 #if 0
  45 /* XXX not called at all */
  46 static void setup_vertex_buffers(struct r300_context *r300)
  47 {
  48     struct pipe_vertex_element *vert_elem;
  49     int i;
  50
  51     for (i = 0; i < r300->aos_count; i++)
  52     {
  53         vert_elem = &r300->vertex_element[i];
  54             /* XXX use translate module to convert the data */
  55         if (!format_is_supported(vert_elem->src_format,
  56                                  vert_elem->nr_components)) {
  57             assert(0);
  58             /*
  59             struct pipe_buffer *buf;
  60             const unsigned int max_index = r300->vertex_buffers[vert_elem->vertex_buffer_index].max_index;
  61             buf = pipe_buffer_create(r300->context.screen, 4, usage, vert_elem->nr_components * max_index * sizeof(float));
  62             */
  63         }
  64
  65         if (get_buffer_offset(r300,
  66                               vert_elem->vertex_buffer_index,
  67                               vert_elem->src_offset) % 4) {
  68             /* XXX need to align buffer */
  69             assert(0);
  70         }
  71     }
  72 }
  73 #endif
  74 /* XXX these shouldn't be asserts since we can work around bad indexbufs */
  75 void setup_index_buffer(struct r300_context *r300,
  76                         struct pipe_buffer* indexBuffer,
  77                         unsigned indexSize)
  78 {
  79     if (!r300->winsys->add_buffer(r300->winsys, indexBuffer,
  80                                   RADEON_GEM_DOMAIN_GTT, 0)) {
  81         assert(0);
  82     }
  83
  84     if (!r300->winsys->validate(r300->winsys)) {
  85         assert(0);
  86     }
  87 }