src/mesa/drivers/dri/r300/r300_draw.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Maciej Cencora
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL THE AUTHOR(S) AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  **************************************************************************/
  26
  27 #include <stdlib.h>
  28
  29 #include "main/glheader.h"
  30 #include "main/context.h"
  31 #include "main/state.h"
  32 #include "main/api_validate.h"
  33 #include "main/enums.h"
  34
  35 #include "r300_reg.h"
  36 #include "r300_context.h"
  37 #include "r300_emit.h"
  38 #include "r300_render.h"
  39 #include "r300_state.h"
  40 #include "r300_tex.h"
  41
  42 #include "radeon_buffer_objects.h"
  43
  44 #include "tnl/tnl.h"
  45 #include "tnl/t_vp_build.h"
  46 #include "vbo/vbo_context.h"
  47 #include "swrast/swrast.h"
  48 #include "swrast_setup/swrast_setup.h"
  49
  50
  51 static int getTypeSize(GLenum type)
  52 {
  53         switch (type) {
  54                 case GL_DOUBLE:
  55                         return sizeof(GLdouble);
  56                 case GL_FLOAT:
  57                         return sizeof(GLfloat);
  58                 case GL_INT:
  59                         return sizeof(GLint);
  60                 case GL_UNSIGNED_INT:
  61                         return sizeof(GLuint);
  62                 case GL_SHORT:
  63                         return sizeof(GLshort);
  64                 case GL_UNSIGNED_SHORT:
  65                         return sizeof(GLushort);
  66                 case GL_BYTE:
  67                         return sizeof(GLbyte);
  68                 case GL_UNSIGNED_BYTE:
  69                         return sizeof(GLubyte);
  70                 default:
  71                         assert(0);
  72                         return 0;
  73         }
  74 }
  75
  76 static void r300FixupIndexBuffer(GLcontext *ctx, const struct _mesa_index_buffer *mesa_ind_buf)
  77 {
  78         r300ContextPtr r300 = R300_CONTEXT(ctx);
  79         GLvoid *src_ptr;
  80         GLuint *out;
  81         int i;
  82         GLboolean mapped_named_bo = GL_FALSE;
  83
  84         if (mesa_ind_buf->obj->Name && !mesa_ind_buf->obj->Pointer) {
  85                 ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER, GL_READ_ONLY_ARB, mesa_ind_buf->obj);
  86                 mapped_named_bo = GL_TRUE;
  87                 assert(mesa_ind_buf->obj->Pointer != NULL);
  88         }
  89         src_ptr = ADD_POINTERS(mesa_ind_buf->obj->Pointer, mesa_ind_buf->ptr);
  90
  91         if (mesa_ind_buf->type == GL_UNSIGNED_BYTE) {
  92                 GLuint size = sizeof(GLushort) * ((mesa_ind_buf->count + 1) & ~1);
  93                 GLubyte *in = (GLubyte *)src_ptr;
  94
  95                 radeonAllocDmaRegion(&r300->radeon, &r300->ind_buf.bo, &r300->ind_buf.bo_offset, size, 4);
  96
  97                 assert(r300->ind_buf.bo->ptr != NULL);
  98                 out = (GLuint *)ADD_POINTERS(r300->ind_buf.bo->ptr, r300->ind_buf.bo_offset);
  99
 100                 for (i = 0; i + 1 < mesa_ind_buf->count; i += 2) {
 101                         *out++ = in[i] | in[i + 1] << 16;
 102                 }
 103
 104                 if (i < mesa_ind_buf->count) {
 105                         *out++ = in[i];
 106                 }
 107
 108 #if MESA_BIG_ENDIAN
 109         } else { /* if (mesa_ind_buf->type == GL_UNSIGNED_SHORT) */
 110                 GLushort *in = (GLushort *)src_ptr;
 111                 size = sizeof(GLushort) * ((mesa_ind_buf->count + 1) & ~1);
 112
 113                 radeonAllocDmaRegion(&r300->radeon, &r300->ind_buf.bo, &r300->ind_buf.bo_offet, size, 4);
 114
 115                 assert(r300->ind_buf.bo->ptr != NULL)
 116                 out = (GLuint *)ADD_POINTERS(r300->ind_buf.bo->ptr, r300->ind_buf.bo_offset);
 117
 118                 for (i = 0; i + 1 < mesa_ind_buf->count; i += 2) {
 119                         *out++ = in[i] | in[i + 1] << 16;
 120                 }
 121
 122                 if (i < mesa_ind_buf->count) {
 123                         *out++ = in[i];
 124                 }
 125 #endif
 126         }
 127
 128         r300->ind_buf.is_32bit = GL_FALSE;
 129         r300->ind_buf.count = mesa_ind_buf->count;
 130
 131         if (mapped_named_bo) {
 132                 ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER, mesa_ind_buf->obj);
 133         }
 134 }
 135
 136
 137 static void r300SetupIndexBuffer(GLcontext *ctx, const struct _mesa_index_buffer *mesa_ind_buf)
 138 {
 139         r300ContextPtr r300 = R300_CONTEXT(ctx);
 140
 141         if (!mesa_ind_buf) {
 142                 r300->ind_buf.bo = NULL;
 143                 return;
 144         }
 145
 146 #if MESA_BIG_ENDIAN
 147         if (mesa_ind_buf->type == GL_UNSIGNED_INT) {
 148 #else
 149         if (mesa_ind_buf->type != GL_UNSIGNED_BYTE) {
 150 #endif
 151                 const GLvoid *src_ptr;
 152                 GLvoid *dst_ptr;
 153                 GLboolean mapped_named_bo = GL_FALSE;
 154
 155                 if (mesa_ind_buf->obj->Name && !mesa_ind_buf->obj->Pointer) {
 156                         ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER, GL_READ_ONLY_ARB, mesa_ind_buf->obj);
 157                         assert(mesa_ind_buf->obj->Pointer != NULL);
 158                         mapped_named_bo = GL_TRUE;
 159                 }
 160
 161                 src_ptr = ADD_POINTERS(mesa_ind_buf->obj->Pointer, mesa_ind_buf->ptr);
 162
 163                 const GLuint size = mesa_ind_buf->count * getTypeSize(mesa_ind_buf->type);
 164
 165                 radeonAllocDmaRegion(&r300->radeon, &r300->ind_buf.bo, &r300->ind_buf.bo_offset, size, 4);
 166
 167                 assert(r300->ind_buf.bo->ptr != NULL);
 168                 dst_ptr = ADD_POINTERS(r300->ind_buf.bo->ptr, r300->ind_buf.bo_offset);
 169                 _mesa_memcpy(dst_ptr, src_ptr, size);
 170
 171                 r300->ind_buf.is_32bit = (mesa_ind_buf->type == GL_UNSIGNED_INT);
 172                 r300->ind_buf.count = mesa_ind_buf->count;
 173
 174                 if (mapped_named_bo) {
 175                         ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER, mesa_ind_buf->obj);
 176                 }
 177         } else {
 178                 r300FixupIndexBuffer(ctx, mesa_ind_buf);
 179         }
 180 }
 181
 182 #define CONVERT( TYPE, MACRO ) do {             \
 183         GLuint i, j, sz;                                \
 184         sz = input->Size;                               \
 185         if (input->Normalized) {                        \
 186                 for (i = 0; i < count; i++) {           \
 187                         const TYPE *in = (TYPE *)src_ptr;               \
 188                         for (j = 0; j < sz; j++) {              \
 189                                 *dst_ptr++ = MACRO(*in);                \
 190                                 in++;                           \
 191                         }                                       \
 192                         src_ptr += stride;                      \
 193                 }                                               \
 194         } else {                                        \
 195                 for (i = 0; i < count; i++) {           \
 196                         const TYPE *in = (TYPE *)src_ptr;               \
 197                         for (j = 0; j < sz; j++) {              \
 198                                 *dst_ptr++ = (GLfloat)(*in);            \
 199                                 in++;                           \
 200                         }                                       \
 201                         src_ptr += stride;                      \
 202                 }                                               \
 203         }                                               \
 204 } while (0)
 205
 206 /**
 207  * Convert attribute data type to float
 208  * If the attribute uses named buffer object replace the bo with newly allocated bo
 209  */
 210 static void r300ConvertAttrib(GLcontext *ctx, int count, const struct gl_client_array *input, struct vertex_attribute *attr)
 211 {
 212         r300ContextPtr r300 = R300_CONTEXT(ctx);
 213         const GLvoid *src_ptr;
 214         GLboolean mapped_named_bo = GL_FALSE;
 215         GLfloat *dst_ptr;
 216         GLuint stride;
 217
 218         stride = (input->StrideB == 0) ? getTypeSize(input->Type) * input->Size : input->StrideB;
 219
 220         /* Convert value for first element only */
 221         if (input->StrideB == 0)
 222                 count = 1;
 223
 224         if (input->BufferObj->Name) {
 225                 if (!input->BufferObj->Pointer) {
 226                         ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER, GL_READ_ONLY_ARB, input->BufferObj);
 227                         mapped_named_bo = GL_TRUE;
 228                 }
 229
 230                 src_ptr = ADD_POINTERS(input->BufferObj->Pointer, input->Ptr);
 231         } else {
 232                 src_ptr = input->Ptr;
 233         }
 234
 235         radeonAllocDmaRegion(&r300->radeon, &attr->bo, &attr->bo_offset, sizeof(GLfloat) * input->Size * count, 32);
 236         dst_ptr = (GLfloat *)ADD_POINTERS(attr->bo->ptr, attr->bo_offset);
 237
 238         if (RADEON_DEBUG & DEBUG_FALLBACKS) {
 239                 fprintf(stderr, "%s: Converting vertex attributes, attribute data format %x,", __FUNCTION__, input->Type);
 240                 fprintf(stderr, "stride %d, components %d\n", stride, input->Size);
 241         }
 242
 243         assert(src_ptr != NULL);
 244
 245         switch (input->Type) {
 246                 case GL_DOUBLE:
 247                         CONVERT(GLdouble, (GLfloat));
 248                         break;
 249                 case GL_UNSIGNED_INT:
 250                         CONVERT(GLuint, UINT_TO_FLOAT);
 251                         break;
 252                 case GL_INT:
 253                         CONVERT(GLint, INT_TO_FLOAT);
 254                         break;
 255                 case GL_UNSIGNED_SHORT:
 256                         CONVERT(GLushort, USHORT_TO_FLOAT);
 257                         break;
 258                 case GL_SHORT:
 259                         CONVERT(GLshort, SHORT_TO_FLOAT);
 260                         break;
 261                 case GL_UNSIGNED_BYTE:
 262                         assert(input->Format != GL_BGRA);
 263                         CONVERT(GLubyte, UBYTE_TO_FLOAT);
 264                         break;
 265                 case GL_BYTE:
 266                         CONVERT(GLbyte, BYTE_TO_FLOAT);
 267                         break;
 268                 default:
 269                         assert(0);
 270                         break;
 271         }
 272
 273         if (mapped_named_bo) {
 274                 ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER, input->BufferObj);
 275         }
 276 }
 277
 278 static void r300AlignDataToDword(GLcontext *ctx, const struct gl_client_array *input, int count, struct vertex_attribute *attr)
 279 {
 280         r300ContextPtr r300 = R300_CONTEXT(ctx);
 281         const int dst_stride = (input->StrideB + 3) & ~3;
 282         const int size = getTypeSize(input->Type) * input->Size * count;
 283         GLboolean mapped_named_bo = GL_FALSE;
 284
 285         radeonAllocDmaRegion(&r300->radeon, &attr->bo, &attr->bo_offset, size, 32);
 286
 287         if (!input->BufferObj->Pointer) {
 288                 ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER, GL_READ_ONLY_ARB, input->BufferObj);
 289                 mapped_named_bo = GL_TRUE;
 290         }
 291
 292         {
 293                 GLvoid *src_ptr = ADD_POINTERS(input->BufferObj->Pointer, input->Ptr);
 294                 GLvoid *dst_ptr = ADD_POINTERS(attr->bo->ptr, attr->bo_offset);
 295                 int i;
 296
 297                 for (i = 0; i < count; ++i) {
 298                         _mesa_memcpy(dst_ptr, src_ptr, input->StrideB);
 299                         src_ptr += input->StrideB;
 300                         dst_ptr += dst_stride;
 301                 }
 302         }
 303
 304         if (mapped_named_bo) {
 305                 ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER, input->BufferObj);
 306         }
 307
 308         attr->stride = dst_stride;
 309 }
 310
 311 static void r300TranslateAttrib(GLcontext *ctx, GLuint attr, int count, const struct gl_client_array *input)
 312 {
 313         r300ContextPtr r300 = R300_CONTEXT(ctx);
 314         struct r300_vertex_buffer *vbuf = &r300->vbuf;
 315         struct vertex_attribute r300_attr;
 316         GLenum type;
 317         GLuint stride;
 318
 319         stride = (input->StrideB == 0) ? getTypeSize(input->Type) * input->Size : input->StrideB;
 320
 321         if (input->Type == GL_DOUBLE || input->Type == GL_UNSIGNED_INT || input->Type == GL_INT ||
 322 #if MESA_BIG_ENDIAN
 323             getTypeSize(input->Type) != 4 ||
 324 #endif
 325             stride < 4) {
 326
 327                 type = GL_FLOAT;
 328
 329                 r300ConvertAttrib(ctx, count, input, &r300_attr);
 330                 if (input->StrideB == 0) {
 331                         r300_attr.stride = 0;
 332                 } else {
 333                         r300_attr.stride = sizeof(GLfloat) * input->Size;
 334                 }
 335                 r300_attr.dwords = input->Size;
 336                 r300_attr.is_named_bo = GL_FALSE;
 337         } else {
 338                 type = input->Type;
 339                 r300_attr.dwords = (getTypeSize(type) * input->Size + 3)/ 4;
 340                 if (input->BufferObj->Name) {
 341                         if (stride % 4 != 0) {
 342                                 assert(((int) input->Ptr) % input->StrideB == 0);
 343                                 r300AlignDataToDword(ctx, input, count, &r300_attr);
 344                                 r300_attr.is_named_bo = GL_FALSE;
 345                         } else {
 346                                 r300_attr.stride = input->StrideB;
 347                                 r300_attr.bo_offset = (GLuint) input->Ptr;
 348                                 r300_attr.bo = get_radeon_buffer_object(input->BufferObj)->bo;
 349                                 r300_attr.is_named_bo = GL_TRUE;
 350                         }
 351                 } else {
 352                         int size;
 353                         uint32_t *dst;
 354
 355                         if (input->StrideB == 0) {
 356                                 size = getTypeSize(input->Type) * input->Size;
 357                                 count = 1;
 358                                 r300_attr.stride = 0;
 359                         } else {
 360                                 size = getTypeSize(input->Type) * input->Size * count;
 361                                 r300_attr.stride = (getTypeSize(type) * input->Size + 3) & ~3;
 362                         }
 363
 364                         radeonAllocDmaRegion(&r300->radeon, &r300_attr.bo, &r300_attr.bo_offset, size, 32);
 365                         assert(r300_attr.bo->ptr != NULL);
 366                         dst = (uint32_t *)ADD_POINTERS(r300_attr.bo->ptr, r300_attr.bo_offset);
 367                         switch (r300_attr.dwords) {
 368                                 case 1: radeonEmitVec4(dst, input->Ptr, input->StrideB, count); break;
 369                                 case 2: radeonEmitVec8(dst, input->Ptr, input->StrideB, count); break;
 370                                 case 3: radeonEmitVec12(dst, input->Ptr, input->StrideB, count); break;
 371                                 case 4: radeonEmitVec16(dst, input->Ptr, input->StrideB, count); break;
 372                                 default: assert(0); break;
 373                         }
 374
 375                         r300_attr.is_named_bo = GL_FALSE;
 376                 }
 377         }
 378
 379         r300_attr.size = input->Size;
 380         r300_attr.element = attr;
 381         r300_attr.dst_loc = vbuf->num_attribs;
 382
 383         switch (type) {
 384                 case GL_FLOAT:
 385                         switch (input->Size) {
 386                                 case 1: r300_attr.data_type = R300_DATA_TYPE_FLOAT_1; break;
 387                                 case 2: r300_attr.data_type = R300_DATA_TYPE_FLOAT_2; break;
 388                                 case 3: r300_attr.data_type = R300_DATA_TYPE_FLOAT_3; break;
 389                                 case 4: r300_attr.data_type = R300_DATA_TYPE_FLOAT_4; break;
 390                         }
 391                         r300_attr._signed = 0;
 392                         r300_attr.normalize = 0;
 393                         break;
 394                 case GL_SHORT:
 395                         r300_attr._signed = 1;
 396                         r300_attr.normalize = input->Normalized;
 397                         switch (input->Size) {
 398                                 case 1:
 399                                 case 2:
 400                                         r300_attr.data_type = R300_DATA_TYPE_SHORT_2;
 401                                         break;
 402                                 case 3:
 403                                 case 4:
 404                                         r300_attr.data_type = R300_DATA_TYPE_SHORT_4;
 405                                         break;
 406                         }
 407                         break;
 408                 case GL_BYTE:
 409                         r300_attr._signed = 1;
 410                         r300_attr.normalize = input->Normalized;
 411                         r300_attr.data_type = R300_DATA_TYPE_BYTE;
 412                         break;
 413                 case GL_UNSIGNED_SHORT:
 414                         r300_attr._signed = 0;
 415                         r300_attr.normalize = input->Normalized;
 416                         switch (input->Size) {
 417                                 case 1:
 418                                 case 2:
 419                                         r300_attr.data_type = R300_DATA_TYPE_SHORT_2;
 420                                         break;
 421                                 case 3:
 422                                 case 4:
 423                                         r300_attr.data_type = R300_DATA_TYPE_SHORT_4;
 424                                         break;
 425                         }
 426                         break;
 427                 case GL_UNSIGNED_BYTE:
 428                         r300_attr._signed = 0;
 429                         r300_attr.normalize = input->Normalized;
 430                         if (input->Format == GL_BGRA)
 431                                 r300_attr.data_type = R300_DATA_TYPE_D3DCOLOR;
 432                         else
 433                                 r300_attr.data_type = R300_DATA_TYPE_BYTE;
 434                         break;
 435
 436                 default:
 437                 case GL_DOUBLE:
 438                 case GL_INT:
 439                 case GL_UNSIGNED_INT:
 440                         assert(0);
 441                         break;
 442         }
 443
 444         switch (input->Size) {
 445                 case 4:
 446                         r300_attr.swizzle = SWIZZLE_XYZW;
 447                         break;
 448                 case 3:
 449                         r300_attr.swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ONE);
 450                         break;
 451                 case 2:
 452                         r300_attr.swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_ZERO, SWIZZLE_ONE);
 453                         break;
 454                 case 1:
 455                         r300_attr.swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_ZERO, SWIZZLE_ZERO, SWIZZLE_ONE);
 456                         break;
 457         }
 458
 459         r300_attr.write_mask = MASK_XYZW;
 460
 461         vbuf->attribs[vbuf->num_attribs] = r300_attr;
 462         ++vbuf->num_attribs;
 463 }
 464
 465 static void r300SetVertexFormat(GLcontext *ctx, const struct gl_client_array *arrays[], int count)
 466 {
 467         r300ContextPtr r300 = R300_CONTEXT(ctx);
 468         struct r300_vertex_buffer *vbuf = &r300->vbuf;
 469
 470         {
 471                 int i, tmp;
 472
 473                 tmp = r300->selected_vp->code.InputsRead;
 474                 i = 0;
 475                 vbuf->num_attribs = 0;
 476                 while (tmp) {
 477                         /* find first enabled bit */
 478                         while (!(tmp & 1)) {
 479                                 tmp >>= 1;
 480                                 ++i;
 481                         }
 482
 483                         r300TranslateAttrib(ctx, i, count, arrays[i]);
 484
 485                         tmp >>= 1;
 486                         ++i;
 487                 }
 488         }
 489
 490         r300SwitchFallback(ctx, R300_FALLBACK_AOS_LIMIT, vbuf->num_attribs > R300_MAX_AOS_ARRAYS);
 491         if (r300->fallback)
 492                 return;
 493
 494         {
 495                 int i;
 496
 497                 for (i = 0; i < vbuf->num_attribs; i++) {
 498                         struct radeon_aos *aos = &r300->radeon.tcl.aos[i];
 499
 500                         aos->count = vbuf->attribs[i].stride == 0 ? 1 : count;
 501                         aos->stride = vbuf->attribs[i].stride / sizeof(float);
 502                         aos->offset = vbuf->attribs[i].bo_offset;
 503                         aos->components = vbuf->attribs[i].dwords;
 504                         aos->bo = vbuf->attribs[i].bo;
 505
 506                         radeon_cs_space_check_with_bo(r300->radeon.cmdbuf.cs,
 507                                                                                   r300->vbuf.attribs[i].bo,
 508                                                                                   RADEON_GEM_DOMAIN_GTT, 0);
 509                         if (vbuf->attribs[i].is_named_bo) {
 510                                 radeon_cs_space_add_persistent_bo(r300->radeon.cmdbuf.cs,
 511                                                                                                   r300->vbuf.attribs[i].bo,
 512                                                                                                   RADEON_GEM_DOMAIN_GTT, 0);
 513                         }
 514                 }
 515                 r300->radeon.tcl.aos_count = vbuf->num_attribs;
 516
 517                 if (r300->ind_buf.bo) {
 518                         radeon_cs_space_check_with_bo(r300->radeon.cmdbuf.cs,
 519                                                                                   r300->ind_buf.bo,
 520                                                                                   RADEON_GEM_DOMAIN_GTT, 0);
 521                 }
 522         }
 523 }
 524
 525 static void r300FreeData(GLcontext *ctx)
 526 {
 527         /* Need to zero tcl.aos[n].bo and tcl.elt_dma_bo
 528          * to prevent double unref in radeonReleaseArrays
 529          * called during context destroy
 530          */
 531         r300ContextPtr r300 = R300_CONTEXT(ctx);
 532         {
 533                 int i;
 534
 535                 for (i = 0; i < r300->vbuf.num_attribs; i++) {
 536                         if (!r300->vbuf.attribs[i].is_named_bo) {
 537                                 radeon_bo_unref(r300->vbuf.attribs[i].bo);
 538                         }
 539                         r300->radeon.tcl.aos[i].bo = NULL;
 540                 }
 541         }
 542
 543         {
 544                 if (r300->ind_buf.bo != NULL) {
 545                         radeon_bo_unref(r300->ind_buf.bo);
 546                 }
 547         }
 548 }
 549
 550 static GLboolean r300TryDrawPrims(GLcontext *ctx,
 551                                          const struct gl_client_array *arrays[],
 552                                          const struct _mesa_prim *prim,
 553                                          GLuint nr_prims,
 554                                          const struct _mesa_index_buffer *ib,
 555                                          GLuint min_index,
 556                                          GLuint max_index )
 557 {
 558         struct r300_context *r300 = R300_CONTEXT(ctx);
 559         GLuint i;
 560
 561         if (ctx->NewState)
 562                 _mesa_update_state( ctx );
 563
 564         if (r300->options.hw_tcl_enabled)
 565                 _tnl_UpdateFixedFunctionProgram(ctx);
 566
 567         r300UpdateShaders(r300);
 568
 569         r300SwitchFallback(ctx, R300_FALLBACK_INVALID_BUFFERS, !r300ValidateBuffers(ctx));
 570
 571         r300SetupIndexBuffer(ctx, ib);
 572
 573         /* ensure we have the cmd buf space in advance to cover
 574          * the state + DMA AOS pointers */
 575         rcommonEnsureCmdBufSpace(&r300->radeon,
 576                            r300->radeon.hw.max_state_size + (50*sizeof(int)),
 577                            __FUNCTION__);
 578
 579         r300SetVertexFormat(ctx, arrays, max_index + 1);
 580
 581         if (r300->fallback)
 582                 return GL_FALSE;
 583
 584         r300SetupVAP(ctx, r300->selected_vp->code.InputsRead, r300->selected_vp->code.OutputsWritten);
 585
 586         r300UpdateShaderStates(r300);
 587
 588         r300EmitCacheFlush(r300);
 589         radeonEmitState(&r300->radeon);
 590
 591         for (i = 0; i < nr_prims; ++i) {
 592                 r300RunRenderPrimitive(ctx, prim[i].start, prim[i].start + prim[i].count, prim[i].mode);
 593         }
 594
 595         r300EmitCacheFlush(r300);
 596
 597         r300FreeData(ctx);
 598
 599         return GL_TRUE;
 600 }
 601
 602 static void r300DrawPrims(GLcontext *ctx,
 603                          const struct gl_client_array *arrays[],
 604                          const struct _mesa_prim *prim,
 605                          GLuint nr_prims,
 606                          const struct _mesa_index_buffer *ib,
 607                          GLuint min_index,
 608                          GLuint max_index)
 609 {
 610         GLboolean retval;
 611
 612         if (min_index) {
 613                 vbo_rebase_prims( ctx, arrays, prim, nr_prims, ib, min_index, max_index, r300DrawPrims );
 614                 return;
 615         }
 616
 617         /* Make an attempt at drawing */
 618         retval = r300TryDrawPrims(ctx, arrays, prim, nr_prims, ib, min_index, max_index);
 619
 620         /* If failed run tnl pipeline - it should take care of fallbacks */
 621         if (!retval)
 622                 _tnl_draw_prims(ctx, arrays, prim, nr_prims, ib, min_index, max_index);
 623 }
 624
 625 void r300InitDraw(GLcontext *ctx)
 626 {
 627         struct vbo_context *vbo = vbo_context(ctx);
 628
 629         vbo->draw_prims = r300DrawPrims;
 630 }