src/gallium/drivers/nv10/nv10_vbo.c

   1 #include "draw/draw_context.h"
   2 #include "pipe/p_context.h"
   3 #include "pipe/p_state.h"
   4 #include "pipe/p_util.h"
   5
   6 #include "nv10_context.h"
   7 #include "nv10_state.h"
   8
   9 #include "nouveau/nouveau_channel.h"
  10 #include "nouveau/nouveau_pushbuf.h"
  11
  12 boolean nv10_draw_elements( struct pipe_context *pipe,
  13                     struct pipe_buffer *indexBuffer,
  14                     unsigned indexSize,
  15                     unsigned prim, unsigned start, unsigned count)
  16 {
  17         struct nv10_context *nv10 = nv10_context( pipe );
  18         struct draw_context *draw = nv10->draw;
  19         unsigned i;
  20
  21         /*
  22          * Map vertex buffers
  23          */
  24         for (i = 0; i < PIPE_ATTRIB_MAX; i++) {
  25                 if (nv10->vtxbuf[i].buffer) {
  26                         void *buf
  27                                 = pipe->winsys->buffer_map(pipe->winsys,
  28                                                 nv10->vtxbuf[i].buffer,
  29                                                 PIPE_BUFFER_USAGE_CPU_READ);
  30                         draw_set_mapped_vertex_buffer(draw, i, buf);
  31                 }
  32         }
  33         /* Map index buffer, if present */
  34         if (indexBuffer) {
  35                 void *mapped_indexes
  36                         = pipe->winsys->buffer_map(pipe->winsys, indexBuffer,
  37                                         PIPE_BUFFER_USAGE_CPU_READ);
  38                 draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
  39         }
  40         else {
  41                 /* no index/element buffer */
  42                 draw_set_mapped_element_buffer(draw, 0, NULL);
  43         }
  44
  45         /* draw! */
  46         draw_arrays(nv10->draw, prim, start, count);
  47
  48         /*
  49          * unmap vertex/index buffers
  50          */
  51         for (i = 0; i < PIPE_ATTRIB_MAX; i++) {
  52                 if (nv10->vtxbuf[i].buffer) {
  53                         pipe->winsys->buffer_unmap(pipe->winsys, nv10->vtxbuf[i].buffer);
  54                         draw_set_mapped_vertex_buffer(draw, i, NULL);
  55                 }
  56         }
  57         if (indexBuffer) {
  58                 pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer);
  59                 draw_set_mapped_element_buffer(draw, 0, NULL);
  60         }
  61
  62         return TRUE;
  63 }
  64
  65 boolean nv10_draw_arrays( struct pipe_context *pipe,
  66                                  unsigned prim, unsigned start, unsigned count)
  67 {
  68         return nv10_draw_elements(pipe, NULL, 0, prim, start, count);
  69 }
  70
  71
  72