Subversion Repositories Kolibri OS

Rev

Blame | Last modification | View Log | RSS feed

  1. /**********************************************************
  2.  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person
  5.  * obtaining a copy of this software and associated documentation
  6.  * files (the "Software"), to deal in the Software without
  7.  * restriction, including without limitation the rights to use, copy,
  8.  * modify, merge, publish, distribute, sublicense, and/or sell copies
  9.  * of the Software, and to permit persons to whom the Software is
  10.  * furnished to do so, subject to the following conditions:
  11.  *
  12.  * The above copyright notice and this permission notice shall be
  13.  * included in all copies or substantial portions of the Software.
  14.  *
  15.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16.  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18.  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19.  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20.  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21.  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22.  * SOFTWARE.
  23.  *
  24.  **********************************************************/
  25.  
  26. #include "util/u_helpers.h"
  27. #include "util/u_inlines.h"
  28. #include "pipe/p_defines.h"
  29. #include "util/u_math.h"
  30. #include "util/u_memory.h"
  31. #include "util/u_transfer.h"
  32. #include "tgsi/tgsi_parse.h"
  33.  
  34. #include "svga_screen.h"
  35. #include "svga_resource_buffer.h"
  36. #include "svga_context.h"
  37.  
  38.  
  39. static void svga_set_vertex_buffers(struct pipe_context *pipe,
  40.                                     unsigned start_slot, unsigned count,
  41.                                     const struct pipe_vertex_buffer *buffers)
  42. {
  43.    struct svga_context *svga = svga_context(pipe);
  44.  
  45.    util_set_vertex_buffers_count(svga->curr.vb,
  46.                                  &svga->curr.num_vertex_buffers,
  47.                                  buffers, start_slot, count);
  48.  
  49.    svga->dirty |= SVGA_NEW_VBUFFER;
  50. }
  51.  
  52.  
  53. static void svga_set_index_buffer(struct pipe_context *pipe,
  54.                                   const struct pipe_index_buffer *ib)
  55. {
  56.    struct svga_context *svga = svga_context(pipe);
  57.  
  58.    if (ib) {
  59.       pipe_resource_reference(&svga->curr.ib.buffer, ib->buffer);
  60.       memcpy(&svga->curr.ib, ib, sizeof(svga->curr.ib));
  61.    }
  62.    else {
  63.       pipe_resource_reference(&svga->curr.ib.buffer, NULL);
  64.       memset(&svga->curr.ib, 0, sizeof(svga->curr.ib));
  65.    }
  66.  
  67.    /* TODO make this more like a state */
  68. }
  69.  
  70.  
  71. static void *
  72. svga_create_vertex_elements_state(struct pipe_context *pipe,
  73.                                   unsigned count,
  74.                                   const struct pipe_vertex_element *attribs)
  75. {
  76.    struct svga_velems_state *velems;
  77.    assert(count <= PIPE_MAX_ATTRIBS);
  78.    velems = (struct svga_velems_state *) MALLOC(sizeof(struct svga_velems_state));
  79.    if (velems) {
  80.       velems->count = count;
  81.       memcpy(velems->velem, attribs, sizeof(*attribs) * count);
  82.    }
  83.    return velems;
  84. }
  85.  
  86. static void svga_bind_vertex_elements_state(struct pipe_context *pipe,
  87.                                             void *velems)
  88. {
  89.    struct svga_context *svga = svga_context(pipe);
  90.    struct svga_velems_state *svga_velems = (struct svga_velems_state *) velems;
  91.  
  92.    svga->curr.velems = svga_velems;
  93.    svga->dirty |= SVGA_NEW_VELEMENT;
  94. }
  95.  
  96. static void svga_delete_vertex_elements_state(struct pipe_context *pipe,
  97.                                               void *velems)
  98. {
  99.    FREE(velems);
  100. }
  101.  
  102. void svga_cleanup_vertex_state( struct svga_context *svga )
  103. {
  104.    unsigned i;
  105.    
  106.    for (i = 0 ; i < svga->curr.num_vertex_buffers; i++)
  107.       pipe_resource_reference(&svga->curr.vb[i].buffer, NULL);
  108. }
  109.  
  110.  
  111. void svga_init_vertex_functions( struct svga_context *svga )
  112. {
  113.    svga->pipe.set_vertex_buffers = svga_set_vertex_buffers;
  114.    svga->pipe.set_index_buffer = svga_set_index_buffer;
  115.    svga->pipe.create_vertex_elements_state = svga_create_vertex_elements_state;
  116.    svga->pipe.bind_vertex_elements_state = svga_bind_vertex_elements_state;
  117.    svga->pipe.delete_vertex_elements_state = svga_delete_vertex_elements_state;
  118. }
  119.  
  120.  
  121.