/* * Mesa 3-D graphics library * Version: 6.3 * * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * Authors: * Keith Whitwell <keith@tungstengraphics.com> */ #include "main/imports.h" #include "main/mtypes.h" #include "main/api_arrayelt.h" #include "main/bufferobj.h" #include "math/m_eval.h" #include "vbo.h" #include "vbo_context.h" #define NR_MAT_ATTRIBS 12 static GLuint check_size( const GLfloat *attr ) { if (attr[3] != 1.0) return 4; if (attr[2] != 0.0) return 3; if (attr[1] != 0.0) return 2; return 1; } static void init_legacy_currval(struct gl_context *ctx) { struct vbo_context *vbo = vbo_context(ctx); struct gl_client_array *arrays = vbo->legacy_currval; GLuint i; memset(arrays, 0, sizeof(*arrays) * VERT_ATTRIB_FF_MAX); /* Set up a constant (StrideB == 0) array for each current * attribute: */ for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) { struct gl_client_array *cl = &arrays[i]; /* Size will have to be determined at runtime: */ cl->Size = check_size(ctx->Current.Attrib[i]); cl->Stride = 0; cl->StrideB = 0; cl->Enabled = 1; cl->Type = GL_FLOAT; cl->Format = GL_RGBA; cl->Ptr = (const void *)ctx->Current.Attrib[i]; cl->_ElementSize = cl->Size * sizeof(GLfloat); _mesa_reference_buffer_object(ctx, &cl->BufferObj, ctx->Shared->NullBufferObj); } } static void init_generic_currval(struct gl_context *ctx) { struct vbo_context *vbo = vbo_context(ctx); struct gl_client_array *arrays = vbo->generic_currval; GLuint i; memset(arrays, 0, sizeof(*arrays) * VERT_ATTRIB_GENERIC_MAX); for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; i++) { struct gl_client_array *cl = &arrays[i]; /* This will have to be determined at runtime: */ cl->Size = 1; cl->Type = GL_FLOAT; cl->Format = GL_RGBA; cl->Ptr = (const void *)ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + i]; cl->Stride = 0; cl->StrideB = 0; cl->Enabled = 1; cl->_ElementSize = cl->Size * sizeof(GLfloat); _mesa_reference_buffer_object(ctx, &cl->BufferObj, ctx->Shared->NullBufferObj); } } static void init_mat_currval(struct gl_context *ctx) { struct vbo_context *vbo = vbo_context(ctx); struct gl_client_array *arrays = vbo->mat_currval; GLuint i; ASSERT(NR_MAT_ATTRIBS == MAT_ATTRIB_MAX); memset(arrays, 0, sizeof(*arrays) * NR_MAT_ATTRIBS); /* Set up a constant (StrideB == 0) array for each current * attribute: */ for (i = 0; i < NR_MAT_ATTRIBS; i++) { struct gl_client_array *cl = &arrays[i]; /* Size is fixed for the material attributes, for others will * be determined at runtime: */ switch (i - VERT_ATTRIB_GENERIC0) { case MAT_ATTRIB_FRONT_SHININESS: case MAT_ATTRIB_BACK_SHININESS: cl->Size = 1; break; case MAT_ATTRIB_FRONT_INDEXES: case MAT_ATTRIB_BACK_INDEXES: cl->Size = 3; break; default: cl->Size = 4; break; } cl->Ptr = (const void *)ctx->Light.Material.Attrib[i]; cl->Type = GL_FLOAT; cl->Format = GL_RGBA; cl->Stride = 0; cl->StrideB = 0; cl->Enabled = 1; cl->_ElementSize = cl->Size * sizeof(GLfloat); _mesa_reference_buffer_object(ctx, &cl->BufferObj, ctx->Shared->NullBufferObj); } } GLboolean _vbo_CreateContext( struct gl_context *ctx ) { struct vbo_context *vbo = CALLOC_STRUCT(vbo_context); ctx->swtnl_im = (void *)vbo; /* Initialize the arrayelt helper */ if (!ctx->aelt_context && !_ae_create_context( ctx )) { return GL_FALSE; } /* TODO: remove these pointers. */ vbo->legacy_currval = &vbo->currval[VBO_ATTRIB_POS]; vbo->generic_currval = &vbo->currval[VBO_ATTRIB_GENERIC0]; vbo->mat_currval = &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT]; init_legacy_currval( ctx ); init_generic_currval( ctx ); init_mat_currval( ctx ); /* Build mappings from VERT_ATTRIB -> VBO_ATTRIB depending on type * of vertex program active. */ { GLuint i; /* When no vertex program, pull in the material attributes in * the generic range. */ for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) vbo->map_vp_none[i] = i; for (i = 0; i < NR_MAT_ATTRIBS; i++) vbo->map_vp_none[VERT_ATTRIB_GENERIC(i)] = VBO_ATTRIB_MAT_FRONT_AMBIENT + i; for (i = NR_MAT_ATTRIBS; i < VERT_ATTRIB_GENERIC_MAX; i++) vbo->map_vp_none[VERT_ATTRIB_GENERIC(i)] = i; for (i = 0; i < Elements(vbo->map_vp_arb); i++) vbo->map_vp_arb[i] = i; } /* Hook our functions into exec and compile dispatch tables. These * will pretty much be permanently installed, which means that the * vtxfmt mechanism can be removed now. */ vbo_exec_init( ctx ); if (ctx->API == API_OPENGL) vbo_save_init( ctx ); _math_init_eval(); return GL_TRUE; } void _vbo_InvalidateState( struct gl_context *ctx, GLuint new_state ) { vbo_exec_invalidate_state(ctx, new_state); } void _vbo_DestroyContext( struct gl_context *ctx ) { struct vbo_context *vbo = vbo_context(ctx); if (ctx->aelt_context) { _ae_destroy_context( ctx ); ctx->aelt_context = NULL; } if (vbo) { GLuint i; for (i = 0; i < VBO_ATTRIB_MAX; i++) { _mesa_reference_buffer_object(ctx, &vbo->currval[i].BufferObj, NULL); } vbo_exec_destroy(ctx); if (ctx->API == API_OPENGL) vbo_save_destroy(ctx); FREE(vbo); ctx->swtnl_im = NULL; } } void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func) { struct vbo_context *vbo = vbo_context(ctx); vbo->draw_prims = func; }