src/gallium/drivers/nv50/nv50_vbo.c

   1 #include "pipe/p_context.h"
   2 #include "pipe/p_state.h"
   3 #include "pipe/p_util.h"
   4
   5 #include "nv50_context.h"
   6
   7 static INLINE unsigned
   8 nv50_prim(unsigned mode)
   9 {
  10         switch (mode) {
  11         case PIPE_PRIM_POINTS: return NV50TCL_VERTEX_BEGIN_POINTS;
  12         case PIPE_PRIM_LINES: return NV50TCL_VERTEX_BEGIN_LINES;
  13         case PIPE_PRIM_LINE_LOOP: return NV50TCL_VERTEX_BEGIN_LINE_LOOP;
  14         case PIPE_PRIM_LINE_STRIP: return NV50TCL_VERTEX_BEGIN_LINE_STRIP;
  15         case PIPE_PRIM_TRIANGLES: return NV50TCL_VERTEX_BEGIN_TRIANGLES;
  16         case PIPE_PRIM_TRIANGLE_STRIP:
  17                 return NV50TCL_VERTEX_BEGIN_TRIANGLE_STRIP;
  18         case PIPE_PRIM_TRIANGLE_FAN: return NV50TCL_VERTEX_BEGIN_TRIANGLE_FAN;
  19         case PIPE_PRIM_QUADS: return NV50TCL_VERTEX_BEGIN_QUADS;
  20         case PIPE_PRIM_QUAD_STRIP: return NV50TCL_VERTEX_BEGIN_QUAD_STRIP;
  21         case PIPE_PRIM_POLYGON: return NV50TCL_VERTEX_BEGIN_POLYGON;
  22         default:
  23                 break;
  24         }
  25
  26         NOUVEAU_ERR("invalid primitive type %d\n", mode);
  27         return NV50TCL_VERTEX_BEGIN_POINTS;
  28 }
  29
  30 boolean
  31 nv50_draw_arrays(struct pipe_context *pipe, unsigned mode, unsigned start,
  32                  unsigned count)
  33 {
  34         struct nv50_context *nv50 = nv50_context(pipe);
  35
  36         nv50_state_validate(nv50);
  37
  38         BEGIN_RING(tesla, 0x142c, 1);
  39         OUT_RING  (0);
  40         BEGIN_RING(tesla, 0x142c, 1);
  41         OUT_RING  (0);
  42
  43         BEGIN_RING(tesla, NV50TCL_VERTEX_BEGIN, 1);
  44         OUT_RING  (nv50_prim(mode));
  45         BEGIN_RING(tesla, NV50TCL_VERTEX_BUFFER_FIRST, 2);
  46         OUT_RING  (start);
  47         OUT_RING  (count);
  48         BEGIN_RING(tesla, NV50TCL_VERTEX_END, 1);
  49         OUT_RING  (0);
  50
  51         pipe->flush(pipe, 0, NULL);
  52         return TRUE;
  53 }
  54
  55 static INLINE void
  56 nv50_draw_elements_inline_u08(struct nv50_context *nv50, uint8_t *map,
  57                               unsigned start, unsigned count)
  58 {
  59         map += start;
  60
  61         if (count & 1) {
  62                 BEGIN_RING(tesla, 0x15e8, 1);
  63                 OUT_RING  (map[0]);
  64                 map++;
  65                 count--;
  66         }
  67
  68         while (count) {
  69                 unsigned nr = count > 2046 ? 2046 : count;
  70                 int i;
  71
  72                 BEGIN_RING(tesla, 0x400015f0, nr >> 1);
  73                 for (i = 0; i < nr; i += 2)
  74                         OUT_RING  ((map[1] << 16) | map[0]);
  75
  76                 count -= nr;
  77                 map += nr;
  78         }
  79 }
  80
  81 static INLINE void
  82 nv50_draw_elements_inline_u16(struct nv50_context *nv50, uint16_t *map,
  83                               unsigned start, unsigned count)
  84 {
  85         map += start;
  86
  87         if (count & 1) {
  88                 BEGIN_RING(tesla, 0x15e8, 1);
  89                 OUT_RING  (map[0]);
  90                 map++;
  91                 count--;
  92         }
  93
  94         while (count) {
  95                 unsigned nr = count > 2046 ? 2046 : count;
  96                 int i;
  97
  98                 BEGIN_RING(tesla, 0x400015f0, nr >> 1);
  99                 for (i = 0; i < nr; i += 2)
 100                         OUT_RING  ((map[1] << 16) | map[0]);
 101
 102                 count -= nr;
 103                 map += nr;
 104         }
 105 }
 106
 107 static INLINE void
 108 nv50_draw_elements_inline_u32(struct nv50_context *nv50, uint8_t *map,
 109                               unsigned start, unsigned count)
 110 {
 111         map += start;
 112
 113         while (count) {
 114                 unsigned nr = count > 2047 ? 2047 : count;
 115
 116                 BEGIN_RING(tesla, 0x400015e8, nr);
 117                 OUT_RINGp (map, nr);
 118
 119                 count -= nr;
 120                 map += nr;
 121         }
 122 }
 123
 124 boolean
 125 nv50_draw_elements(struct pipe_context *pipe,
 126                    struct pipe_buffer *indexBuffer, unsigned indexSize,
 127                    unsigned mode, unsigned start, unsigned count)
 128 {
 129         struct nv50_context *nv50 = nv50_context(pipe);
 130         struct pipe_winsys *ws = pipe->winsys;
 131         void *map = ws->buffer_map(ws, indexBuffer, PIPE_BUFFER_USAGE_CPU_READ);
 132
 133         nv50_state_validate(nv50);
 134
 135         BEGIN_RING(tesla, 0x142c, 1);
 136         OUT_RING  (0);
 137         BEGIN_RING(tesla, 0x142c, 1);
 138         OUT_RING  (0);
 139
 140         BEGIN_RING(tesla, NV50TCL_VERTEX_BEGIN, 1);
 141         OUT_RING  (nv50_prim(mode));
 142         switch (indexSize) {
 143         case 1:
 144                 nv50_draw_elements_inline_u08(nv50, map, start, count);
 145                 break;
 146         case 2:
 147                 nv50_draw_elements_inline_u16(nv50, map, start, count);
 148                 break;
 149         case 4:
 150                 nv50_draw_elements_inline_u32(nv50, map, start, count);
 151                 break;
 152         default:
 153                 assert(0);
 154         }
 155         BEGIN_RING(tesla, NV50TCL_VERTEX_END, 1);
 156         OUT_RING  (0);
 157
 158         pipe->flush(pipe, 0, NULL);
 159         return TRUE;
 160 }
 161
 162 void
 163 nv50_vbo_validate(struct nv50_context *nv50)
 164 {
 165         struct nouveau_grobj *tesla = nv50->screen->tesla;
 166         struct nouveau_stateobj *vtxbuf, *vtxfmt;
 167         int i, vpi = 0;
 168
 169         vtxbuf = so_new(nv50->vtxelt_nr * 4, nv50->vtxelt_nr * 2);
 170         vtxfmt = so_new(nv50->vtxelt_nr + 1, 0);
 171         so_method(vtxfmt, tesla, 0x1ac0, nv50->vtxelt_nr);
 172
 173         for (i = 0; i < nv50->vtxelt_nr; i++) {
 174                 struct pipe_vertex_element *ve = &nv50->vtxelt[i];
 175                 struct pipe_vertex_buffer *vb =
 176                         &nv50->vtxbuf[ve->vertex_buffer_index];
 177
 178                 switch (ve->src_format) {
 179                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 180                         so_data(vtxfmt, 0x7e080000 | i);
 181                         break;
 182                 case PIPE_FORMAT_R32G32B32_FLOAT:
 183                         so_data(vtxfmt, 0x7e100000 | i);
 184                         break;
 185                 case PIPE_FORMAT_R32G32_FLOAT:
 186                         so_data(vtxfmt, 0x7e200000 | i);
 187                         break;
 188                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 189                         so_data(vtxfmt, 0x24500000 | i);
 190                         break;
 191                 default:
 192                 {
 193                         char fmt[128];
 194                         pf_sprint_name(fmt, ve->src_format);
 195                         NOUVEAU_ERR("invalid vbo format %s\n", fmt);
 196                         assert(0);
 197                         return;
 198                 }
 199                 }
 200
 201                 so_method(vtxbuf, tesla, 0x900 + (i * 16), 3);
 202                 so_data  (vtxbuf, 0x20000000 | vb->pitch);
 203                 so_reloc (vtxbuf, vb->buffer, vb->buffer_offset +
 204                           ve->src_offset, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
 205                           NOUVEAU_BO_HIGH, 0, 0);
 206                 so_reloc (vtxbuf, vb->buffer, vb->buffer_offset +
 207                           ve->src_offset, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
 208                           NOUVEAU_BO_LOW, 0, 0);
 209         }
 210
 211         so_ref (vtxfmt, &nv50->state.vtxfmt);
 212         so_ref (vtxbuf, &nv50->state.vtxbuf);
 213 }
 214