vbo_exec_array.c revision 4a95185c9f30c2de7a03bb1a0653f51b53b1111d
1fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell/************************************************************************** 2fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * 3fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 4fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * All Rights Reserved. 5fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * 6fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * Permission is hereby granted, free of charge, to any person obtaining a 7fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * copy of this software and associated documentation files (the 8fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * "Software"), to deal in the Software without restriction, including 9fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * without limitation the rights to use, copy, modify, merge, publish, 10fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * distribute, sub license, and/or sell copies of the Software, and to 11fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * permit persons to whom the Software is furnished to do so, subject to 12fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * the following conditions: 13fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * 14fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * The above copyright notice and this permission notice (including the 15fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * next paragraph) shall be included in all copies or substantial portions 16fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * of the Software. 17fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * 18fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * 26fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell **************************************************************************/ 27fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 28c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian#include "main/glheader.h" 29c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian#include "main/context.h" 30c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian#include "main/state.h" 31c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian#include "main/api_validate.h" 32c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian#include "main/api_noop.h" 33feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul#include "main/varray.h" 34a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul#include "main/bufferobj.h" 35c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian#include "glapi/dispatch.h" 36fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 37fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell#include "vbo_context.h" 38fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 393bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul/** 403bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * Compute min and max elements for glDraw[Range]Elements() calls. 41893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell */ 42893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwellstatic void get_minmax_index( GLuint count, GLuint type, 43893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell const GLvoid *indices, 44893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell GLuint *min_index, 45893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell GLuint *max_index) 46fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 4753174afeeb68a79e471185cb463c13ff90af698fJosé Fonseca GLuint i; 48fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 49fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell switch(type) { 50fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell case GL_UNSIGNED_INT: { 51fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell const GLuint *ui_indices = (const GLuint *)indices; 52026e7731e549e0777c010348460fd48b3d75a843Keith Whitwell GLuint max_ui = ui_indices[count-1]; 53893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell GLuint min_ui = ui_indices[0]; 54026e7731e549e0777c010348460fd48b3d75a843Keith Whitwell for (i = 0; i < count; i++) { 55893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; 56893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; 57893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell } 58893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell *min_index = min_ui; 59893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell *max_index = max_ui; 60893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell break; 61fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 62fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell case GL_UNSIGNED_SHORT: { 63fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell const GLushort *us_indices = (const GLushort *)indices; 64026e7731e549e0777c010348460fd48b3d75a843Keith Whitwell GLuint max_us = us_indices[count-1]; 65893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell GLuint min_us = us_indices[0]; 66026e7731e549e0777c010348460fd48b3d75a843Keith Whitwell for (i = 0; i < count; i++) { 67893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell if (us_indices[i] > max_us) max_us = us_indices[i]; 68893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell if (us_indices[i] < min_us) min_us = us_indices[i]; 69893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell } 70893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell *min_index = min_us; 71893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell *max_index = max_us; 72893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell break; 73fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 74fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell case GL_UNSIGNED_BYTE: { 75fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell const GLubyte *ub_indices = (const GLubyte *)indices; 76026e7731e549e0777c010348460fd48b3d75a843Keith Whitwell GLuint max_ub = ub_indices[count-1]; 77893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell GLuint min_ub = ub_indices[0]; 78026e7731e549e0777c010348460fd48b3d75a843Keith Whitwell for (i = 0; i < count; i++) { 79893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; 80893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; 81893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell } 82893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell *min_index = min_ub; 83893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell *max_index = max_ub; 84893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell break; 85fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 86fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell default: 87893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell assert(0); 88893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell break; 89fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 90fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell} 91fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 92fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 933bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul/** 943bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * Just translate the arrayobj into a sane layout. 95fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell */ 96fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellstatic void bind_array_obj( GLcontext *ctx ) 97fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 985a652f595716a82ebd79e33011f6082199c4b0d0Keith Whitwell struct vbo_context *vbo = vbo_context(ctx); 995a652f595716a82ebd79e33011f6082199c4b0d0Keith Whitwell struct vbo_exec_context *exec = &vbo->exec; 1002e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul struct gl_array_object *arrayObj = ctx->Array.ArrayObj; 101fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GLuint i; 102fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 103fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell /* TODO: Fix the ArrayObj struct to keep legacy arrays in an array 104fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * rather than as individual named arrays. Then this function can 105fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * go away. 106fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell */ 1072e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_POS] = &arrayObj->Vertex; 1088fa0cb2b422abaeee1b69f82ca7e9f02dc8393b9Brian Paul exec->array.legacy_array[VERT_ATTRIB_WEIGHT] = &arrayObj->Weight; 1092e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_NORMAL] = &arrayObj->Normal; 1102e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_COLOR0] = &arrayObj->Color; 1112e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_COLOR1] = &arrayObj->SecondaryColor; 1122e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_FOG] = &arrayObj->FogCoord; 1132e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_COLOR_INDEX] = &arrayObj->Index; 1142e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul if (arrayObj->PointSize.Enabled) { 115d378f7b3dfda3b549e4b02380e492671cc34bb59Brian Paul /* this aliases COLOR_INDEX */ 1162e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_POINT_SIZE] = &arrayObj->PointSize; 117d378f7b3dfda3b549e4b02380e492671cc34bb59Brian Paul } 1182e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_EDGEFLAG] = &arrayObj->EdgeFlag; 119fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 120899c524a49fe5dc7413656380ebd65bbd061c042Brian Paul for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) 1212e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.legacy_array[VERT_ATTRIB_TEX0 + i] = &arrayObj->TexCoord[i]; 122fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 1234a95185c9f30c2de7a03bb1a0653f51b53b1111dBrian Paul for (i = 0; i < MAX_VERTEX_GENERIC_ATTRIBS; i++) { 1248da09e6924ca22ba7951d5a7673dfab2a711a997Brian Paul assert(i < Elements(arrayObj->VertexAttrib)); 1258da09e6924ca22ba7951d5a7673dfab2a711a997Brian Paul assert(i < Elements(exec->array.generic_array)); 1262e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.generic_array[i] = &arrayObj->VertexAttrib[i]; 1278da09e6924ca22ba7951d5a7673dfab2a711a997Brian Paul } 128fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 1292e798e4b7e5956dbf3c7fde18f408b5d4c1b151cBrian Paul exec->array.array_obj = arrayObj->Name; 130fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell} 131fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 1323bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul 133fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellstatic void recalculate_input_bindings( GLcontext *ctx ) 134fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 13599efde461d3b8615863bdb7308e05289e0db0422Keith Whitwell struct vbo_context *vbo = vbo_context(ctx); 13699efde461d3b8615863bdb7308e05289e0db0422Keith Whitwell struct vbo_exec_context *exec = &vbo->exec; 137fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell const struct gl_client_array **inputs = &exec->array.inputs[0]; 138239617fbe22d4dd7b2794510a6665f09602b5adfBrian Paul GLbitfield const_inputs = 0x0; 139fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GLuint i; 140fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 141fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->array.program_mode = get_program_mode(ctx); 142fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->array.enabled_flags = ctx->Array.ArrayObj->_Enabled; 143fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 144fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell switch (exec->array.program_mode) { 145fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell case VP_NONE: 1463bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul /* When no vertex program is active (or the vertex program is generated 1473bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * from fixed-function state). We put the material values into the 1483bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * generic slots. This is the only situation where material values 1493bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * are available as per-vertex attributes. 150fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell */ 151fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell for (i = 0; i <= VERT_ATTRIB_TEX7; i++) { 152fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (exec->array.legacy_array[i]->Enabled) 153fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell inputs[i] = exec->array.legacy_array[i]; 1541680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell else { 15599efde461d3b8615863bdb7308e05289e0db0422Keith Whitwell inputs[i] = &vbo->legacy_currval[i]; 1561680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell const_inputs |= 1 << i; 1571680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell } 158fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 159fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 160fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell for (i = 0; i < MAT_ATTRIB_MAX; i++) { 16199efde461d3b8615863bdb7308e05289e0db0422Keith Whitwell inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->mat_currval[i]; 1621680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); 163fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 1645a652f595716a82ebd79e33011f6082199c4b0d0Keith Whitwell 1655a652f595716a82ebd79e33011f6082199c4b0d0Keith Whitwell /* Could use just about anything, just to fill in the empty 1665a652f595716a82ebd79e33011f6082199c4b0d0Keith Whitwell * slots: 1675a652f595716a82ebd79e33011f6082199c4b0d0Keith Whitwell */ 1681680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell for (i = MAT_ATTRIB_MAX; i < VERT_ATTRIB_MAX - VERT_ATTRIB_GENERIC0; i++) { 169fcccf8943213a20957f305161e8aae7fef55baabZou Nan hai inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i]; 1701680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); 1711680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell } 172fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell break; 1733bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul 174fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell case VP_NV: 175fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell /* NV_vertex_program - attribute arrays alias and override 176fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * conventional, legacy arrays. No materials, and the generic 177fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * slots are vacant. 178fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell */ 179fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell for (i = 0; i <= VERT_ATTRIB_TEX7; i++) { 180fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (exec->array.generic_array[i]->Enabled) 181fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell inputs[i] = exec->array.generic_array[i]; 182fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell else if (exec->array.legacy_array[i]->Enabled) 183fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell inputs[i] = exec->array.legacy_array[i]; 1841680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell else { 18599efde461d3b8615863bdb7308e05289e0db0422Keith Whitwell inputs[i] = &vbo->legacy_currval[i]; 1861680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell const_inputs |= 1 << i; 1871680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell } 188fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 189301acdf34ad01315f41c14638d92aa7fe0c2d2dcKeith Whitwell 190301acdf34ad01315f41c14638d92aa7fe0c2d2dcKeith Whitwell /* Could use just about anything, just to fill in the empty 191301acdf34ad01315f41c14638d92aa7fe0c2d2dcKeith Whitwell * slots: 192301acdf34ad01315f41c14638d92aa7fe0c2d2dcKeith Whitwell */ 1931680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell for (i = VERT_ATTRIB_GENERIC0; i < VERT_ATTRIB_MAX; i++) { 194301acdf34ad01315f41c14638d92aa7fe0c2d2dcKeith Whitwell inputs[i] = &vbo->generic_currval[i - VERT_ATTRIB_GENERIC0]; 1951680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell const_inputs |= 1 << i; 1961680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell } 197fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell break; 1983bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul 199fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell case VP_ARB: 2003bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul /* GL_ARB_vertex_program or GLSL vertex shader - Only the generic[0] 2013bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * attribute array aliases and overrides the legacy position array. 202fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * 203fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * Otherwise, legacy attributes available in the legacy slots, 204fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * generic attributes in the generic slots and materials are not 205fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * available as per-vertex attributes. 206fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell */ 207fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (exec->array.generic_array[0]->Enabled) 208fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell inputs[0] = exec->array.generic_array[0]; 209fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell else if (exec->array.legacy_array[0]->Enabled) 210fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell inputs[0] = exec->array.legacy_array[0]; 2111680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell else { 21299efde461d3b8615863bdb7308e05289e0db0422Keith Whitwell inputs[0] = &vbo->legacy_currval[0]; 2131680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell const_inputs |= 1 << 0; 2141680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell } 215fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 216fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell for (i = 1; i <= VERT_ATTRIB_TEX7; i++) { 217fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (exec->array.legacy_array[i]->Enabled) 218fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell inputs[i] = exec->array.legacy_array[i]; 2191680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell else { 22099efde461d3b8615863bdb7308e05289e0db0422Keith Whitwell inputs[i] = &vbo->legacy_currval[i]; 2211680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell const_inputs |= 1 << i; 2221680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell } 223fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 224fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 2254a95185c9f30c2de7a03bb1a0653f51b53b1111dBrian Paul for (i = 0; i < MAX_VERTEX_GENERIC_ATTRIBS; i++) { 2267d8ed0f5f5960a492734cb415b8a85ef4ad79846Roland Scheidegger if (exec->array.generic_array[i]->Enabled) 227fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell inputs[VERT_ATTRIB_GENERIC0 + i] = exec->array.generic_array[i]; 2281680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell else { 22999efde461d3b8615863bdb7308e05289e0db0422Keith Whitwell inputs[VERT_ATTRIB_GENERIC0 + i] = &vbo->generic_currval[i]; 2301680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell const_inputs |= 1 << (VERT_ATTRIB_GENERIC0 + i); 2311680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell } 2321680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell 233fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 234fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell break; 235fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 2361680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell 2371680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell _mesa_set_varying_vp_inputs( ctx, ~const_inputs ); 238fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell} 239fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 2403bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul 241fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellstatic void bind_arrays( GLcontext *ctx ) 242fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 243fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell#if 0 244fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (ctx->Array.ArrayObj.Name != exec->array.array_obj) { 245fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell bind_array_obj(ctx); 246fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell recalculate_input_bindings(ctx); 247fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 248fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell else if (exec->array.program_mode != get_program_mode(ctx) || 249fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->array.enabled_flags != ctx->Array.ArrayObj->_Enabled) { 250fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 251fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell recalculate_input_bindings(ctx); 252fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 253fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell#else 254fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell bind_array_obj(ctx); 255fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell recalculate_input_bindings(ctx); 256fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell#endif 257fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell} 258fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 259fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 260fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 261fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell/*********************************************************************** 262fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * API functions. 263fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell */ 264fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 265fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellstatic void GLAPIENTRY 266fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellvbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count) 267fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 268fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GET_CURRENT_CONTEXT(ctx); 269fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell struct vbo_context *vbo = vbo_context(ctx); 270fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell struct vbo_exec_context *exec = &vbo->exec; 271fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell struct _mesa_prim prim[1]; 272fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 273fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (!_mesa_validate_DrawArrays( ctx, mode, start, count )) 274fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell return; 275fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 276fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell FLUSH_CURRENT( ctx, 0 ); 277fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 278fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (ctx->NewState) 279fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell _mesa_update_state( ctx ); 280fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 281d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul if (!vbo_validate_shaders(ctx)) { 282d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawArrays(bad shader)"); 283d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul return; 284d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul } 285d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul 286fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell bind_arrays( ctx ); 287fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 2883bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul /* Again... because we may have changed the bitmask of per-vertex varying 2893bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * attributes. If we regenerate the fixed-function vertex program now 2903bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * we may be able to prune down the number of vertex attributes which we 2913bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul * need in the shader. 2921680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell */ 2931680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell if (ctx->NewState) 2941680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell _mesa_update_state( ctx ); 2951680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell 296fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].begin = 1; 297fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].end = 1; 298fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].weak = 0; 299fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].pad = 0; 300893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell prim[0].mode = mode; 301893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell prim[0].start = start; 302893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell prim[0].count = count; 303893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell prim[0].indexed = 0; 304fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 3053bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul vbo->draw_prims( ctx, exec->array.inputs, prim, 1, NULL, 3063bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul start, start + count - 1 ); 307a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul 308a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul#if 0 309a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul { 310a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul int i; 311a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul 312a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul _mesa_printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n", 313a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul mode, start, count); 314a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul 315a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul for (i = 0; i < 32; i++) { 316a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul GLuint bufName = exec->array.inputs[i]->BufferObj->Name; 317a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul GLint stride = exec->array.inputs[i]->Stride; 318a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul _mesa_printf("attr %2d: size %d stride %d enabled %d " 319a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul "ptr %p Bufobj %u\n", 320a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul i, 321a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul exec->array.inputs[i]->Size, 322a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul stride, 323a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul /*exec->array.inputs[i]->Enabled,*/ 324a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul exec->array.legacy_array[i]->Enabled, 325a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul exec->array.inputs[i]->Ptr, 326a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul bufName); 327a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul 328a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul if (bufName) { 329a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul struct gl_buffer_object *buf = _mesa_lookup_bufferobj(ctx, bufName); 330a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul GLubyte *p = ctx->Driver.MapBuffer(ctx, GL_ARRAY_BUFFER_ARB, 331a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul GL_READ_ONLY_ARB, buf); 332a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul int offset = (int) exec->array.inputs[i]->Ptr; 333a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul float *f = (float *) (p + offset); 334a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul int *k = (int *) f; 335a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul int i; 336a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul int n = (count * stride) / 4; 337a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul if (n > 32) 338a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul n = 32; 339a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul _mesa_printf(" Data at offset %d:\n", offset); 340a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul for (i = 0; i < n; i++) { 341a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul _mesa_printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]); 342a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul } 343a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER_ARB, buf); 344a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul } 345a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul } 346a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul } 347a3b7db0326337117ccdea526818040d2c24d83b4Brian Paul#endif 348fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell} 349fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 350fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 351fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellstatic void GLAPIENTRY 352fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellvbo_exec_DrawRangeElements(GLenum mode, 353fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GLuint start, GLuint end, 354fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GLsizei count, GLenum type, const GLvoid *indices) 355fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 356fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GET_CURRENT_CONTEXT(ctx); 357fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell struct vbo_context *vbo = vbo_context(ctx); 358fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell struct vbo_exec_context *exec = &vbo->exec; 359fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell struct _mesa_index_buffer ib; 360fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell struct _mesa_prim prim[1]; 361fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 362fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count, type, indices )) 363fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell return; 364fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 365a185bcbdec856cc98c26098e4e447a683eed14d1Brian Paul if (end >= ctx->Array.ArrayObj->_MaxElement) { 366f37cccde3c2f4d63ba45be5b50b2358eb8ef98b4Brian Paul /* the max element is out of bounds of one or more enabled arrays */ 3673bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, " 3683bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul "type 0x%x) index=%u is out of bounds (max=%u)", 3698b91778f46bf7f48efacf5f14d3cc9023a1986aeBrian Paul start, end, count, type, end); 3703bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul if (0) 3713bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul _mesa_print_arrays(ctx); 372f37cccde3c2f4d63ba45be5b50b2358eb8ef98b4Brian Paul return; 373f37cccde3c2f4d63ba45be5b50b2358eb8ef98b4Brian Paul } 374f37cccde3c2f4d63ba45be5b50b2358eb8ef98b4Brian Paul 375fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell FLUSH_CURRENT( ctx, 0 ); 376fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 377fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (ctx->NewState) 378fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell _mesa_update_state( ctx ); 379c3da1501b81a31e92f485ee9fbd99e60cc3a4337Roland Scheidegger 380d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul if (!vbo_validate_shaders(ctx)) { 381d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawRangeElements(bad shader)"); 382d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul return; 383d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul } 384d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul 385c3da1501b81a31e92f485ee9fbd99e60cc3a4337Roland Scheidegger bind_arrays( ctx ); 386c3da1501b81a31e92f485ee9fbd99e60cc3a4337Roland Scheidegger 3871680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell if (ctx->NewState) 3881680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell _mesa_update_state( ctx ); 3891680ef869625dc1fe9cf481b180382a34e0738e7Keith Whitwell 390fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell ib.count = count; 391fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell ib.type = type; 392fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell ib.obj = ctx->Array.ElementArrayBufferObj; 393fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell ib.ptr = indices; 394fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 395fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].begin = 1; 396fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].end = 1; 397fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].weak = 0; 398fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].pad = 0; 399fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].mode = mode; 400fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].start = 0; 401fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].count = count; 402fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell prim[0].indexed = 1; 403fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 404893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell /* Need to give special consideration to rendering a range of 405893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * indices starting somewhere above zero. Typically the 406893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * application is issuing multiple DrawRangeElements() to draw 407893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * successive primitives layed out linearly in the vertex arrays. 408893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * Unless the vertex arrays are all in a VBO (or locked as with 409893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * CVA), the OpenGL semantics imply that we need to re-read or 410893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * re-upload the vertex data on each draw call. 411893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * 412893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * In the case of hardware tnl, we want to avoid starting the 413893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * upload at zero, as it will mean every draw call uploads an 414893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * increasing amount of not-used vertex data. Worse - in the 415893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * software tnl module, all those vertices might be transformed and 416893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * lit but never rendered. 417893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * 418893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * If we just upload or transform the vertices in start..end, 419893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * however, the indices will be incorrect. 420893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * 421893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * At this level, we don't know exactly what the requirements of 422893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * the backend are going to be, though it will likely boil down to 423893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * either: 424893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * 425893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * 1) Do nothing, everything is in a VBO and is processed once 426893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * only. 427893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * 428893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * 2) Adjust the indices and vertex arrays so that start becomes 429893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * zero. 430893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * 431893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * Rather than doing anything here, I'll provide a helper function 432893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell * for the latter case elsewhere. 433893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell */ 434fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 435893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib, start, end ); 436893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell} 437fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 4383bfe312d0136c95b2a8518d65fa32c89ed474987Brian Paul 439fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellstatic void GLAPIENTRY 440fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellvbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices) 441fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 442fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GET_CURRENT_CONTEXT(ctx); 443893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell GLuint min_index = 0; 444893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell GLuint max_index = 0; 445fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 446fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices )) 447fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell return; 448fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 449d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul if (!vbo_validate_shaders(ctx)) { 450d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawElements(bad shader)"); 451d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul return; 452d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul } 453d758479b9fbff803bdac15f3f39d32ef9064db71Brian Paul 454fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell if (ctx->Array.ElementArrayBufferObj->Name) { 455fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell const GLvoid *map = ctx->Driver.MapBuffer(ctx, 456fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GL_ELEMENT_ARRAY_BUFFER_ARB, 4572cb3594af9cd1434aa2c408cd6f8d51bcd12e8eaAapo Tahkola GL_READ_ONLY, 458fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell ctx->Array.ElementArrayBufferObj); 459fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 460893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell get_minmax_index(count, type, ADD_POINTERS(map, indices), &min_index, &max_index); 461fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 462fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell ctx->Driver.UnmapBuffer(ctx, 463fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell GL_ELEMENT_ARRAY_BUFFER_ARB, 464fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell ctx->Array.ElementArrayBufferObj); 465fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 466fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell else { 467893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell get_minmax_index(count, type, indices, &min_index, &max_index); 468fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell } 469fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 470893526b8a823fe1b88f2b46376155afb91c84016Keith Whitwell vbo_exec_DrawRangeElements(mode, min_index, max_index, count, type, indices); 471fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell} 472fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 473fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 474fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell/*********************************************************************** 475fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell * Initialization 476fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell */ 477fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 478fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellvoid vbo_exec_array_init( struct vbo_exec_context *exec ) 479fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 480fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell#if 1 481fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->vtxfmt.DrawArrays = vbo_exec_DrawArrays; 482fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->vtxfmt.DrawElements = vbo_exec_DrawElements; 483fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->vtxfmt.DrawRangeElements = vbo_exec_DrawRangeElements; 484fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell#else 485fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->vtxfmt.DrawArrays = _mesa_noop_DrawArrays; 486fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->vtxfmt.DrawElements = _mesa_noop_DrawElements; 487fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell exec->vtxfmt.DrawRangeElements = _mesa_noop_DrawRangeElements; 488fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell#endif 489fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell} 490fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 491fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell 492fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwellvoid vbo_exec_array_destroy( struct vbo_exec_context *exec ) 493fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell{ 494584def75ad8dd13add5b4ed7e364d13202539539Keith Whitwell /* nothing to do */ 495fd12b37dbada6f945a94b93ecf332d0b6a8eef06Keith Whitwell} 496feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul 497feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul 498feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul/* This API entrypoint is not ordinarily used */ 499feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paulvoid GLAPIENTRY 500feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count) 501feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul{ 502feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul vbo_exec_DrawArrays(mode, first, count); 503feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul} 504feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul 505feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul 506feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul/* This API entrypoint is not ordinarily used */ 507feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paulvoid GLAPIENTRY 508feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type, 509feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul const GLvoid *indices) 510feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul{ 511feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul vbo_exec_DrawElements(mode, count, type, indices); 512feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul} 513feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul 514feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul 515feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul/* This API entrypoint is not ordinarily used */ 516feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paulvoid GLAPIENTRY 517feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, 518feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul GLenum type, const GLvoid *indices) 519feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul{ 520feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul vbo_exec_DrawRangeElements(mode, start, end, count, type, indices); 521feb722fa98f04a4487b7ec4746bcc8c7296899c8Brian Paul} 522