src/gallium/drivers/i965/brw_pipe_vertex.c

   1 #include "brw_context.h"
   2
   3
   4 static void brw_set_vertex_elements( struct pipe_context *pipe,
   5                                      unsigned count,
   6                                      const struct pipe_vertex_element *elements )
   7 {
   8    struct brw_context *brw = brw_context(pipe);
   9
  10    memcpy(brw->curr.vertex_element, elements, count * sizeof(elements[0]));
  11    brw->curr.num_vertex_elements = count;
  12
  13    brw->state.dirty.mesa |= PIPE_NEW_VERTEX_ELEMENT;
  14 }
  15
  16
  17 static void brw_set_vertex_buffers(struct pipe_context *pipe,
  18                                    unsigned count,
  19                                    const struct pipe_vertex_buffer *buffers)
  20 {
  21    struct brw_context *brw = brw_context(pipe);
  22    unsigned i;
  23
  24    /* Check for no change */
  25    if (count == brw->curr.num_vertex_buffers &&
  26        memcmp(brw->curr.vertex_buffer,
  27               buffers,
  28               count * sizeof buffers[0]) == 0)
  29       return;
  30
  31    /* Adjust refcounts */
  32    for (i = 0; i < count; i++)
  33       pipe_buffer_reference(&brw->curr.vertex_buffer[i].buffer,
  34                             buffers[i].buffer);
  35
  36    for ( ; i < brw->curr.num_vertex_buffers; i++)
  37       pipe_buffer_reference(&brw->curr.vertex_buffer[i].buffer,
  38                             NULL);
  39
  40    /* Copy remaining data */
  41    memcpy(brw->curr.vertex_buffer, buffers, count * sizeof buffers[0]);
  42    brw->curr.num_vertex_buffers = count;
  43
  44    brw->state.dirty.mesa |= PIPE_NEW_VERTEX_BUFFER;
  45 }
  46
  47
  48 void
  49 brw_pipe_vertex_init( struct brw_context *brw )
  50 {
  51    brw->base.set_vertex_buffers = brw_set_vertex_buffers;
  52    brw->base.set_vertex_elements = brw_set_vertex_elements;
  53 }
  54
  55
  56 void
  57 brw_pipe_vertex_cleanup( struct brw_context *brw )
  58 {
  59
  60    /* Release bound pipe vertex_buffers
  61     */
  62
  63    /* Release some other stuff
  64     */
  65 #if 0
  66    for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
  67       bo_reference(&brw->vb.inputs[i].bo, NULL);
  68       brw->vb.inputs[i].bo = NULL;
  69    }
  70 #endif
  71 }