| 0,0 → 1,237 |
|---|
| /* |
| * Mesa 3-D graphics library |
| * |
| * 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 |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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 <keithw@vmware.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->currval[VBO_ATTRIB_POS]; |
| 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->currval[VBO_ATTRIB_GENERIC0]; |
| 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->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT]; |
| 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->vbo_context = vbo; |
| |
| /* Initialize the arrayelt helper |
| */ |
| if (!ctx->aelt_context && |
| !_ae_create_context( ctx )) { |
| return GL_FALSE; |
| } |
| |
| 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; |
| |
| /* identity mapping */ |
| for (i = 0; i < ARRAY_SIZE(vbo->map_vp_none); i++) |
| vbo->map_vp_none[i] = i; |
| /* map material attribs to generic slots */ |
| for (i = 0; i < NR_MAT_ATTRIBS; i++) |
| vbo->map_vp_none[VERT_ATTRIB_GENERIC(i)] |
| = VBO_ATTRIB_MAT_FRONT_AMBIENT + i; |
| |
| for (i = 0; i < ARRAY_SIZE(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_COMPAT) |
| 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_COMPAT) |
| vbo_save_destroy(ctx); |
| free(vbo); |
| ctx->vbo_context = 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; |
| } |
| |