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/*
* 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 "mtypes.h"
#include "vbo.h"
#include "vbo_context.h"
#include "imports.h"
#include "api_arrayelt.h"
/* Reach out and grab this to use as the default:
*/
extern void _tnl_draw_prims( GLcontext *ctx,
const struct gl_client_array *arrays[],
const struct _mesa_prim *prims,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLuint min_index,
GLuint max_index );
#define NR_LEGACY_ATTRIBS 16
#define NR_GENERIC_ATTRIBS 16
#define NR_MAT_ATTRIBS 12
static void init_legacy_currval(GLcontext *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct gl_client_array *arrays = vbo->legacy_currval;
GLuint i;
memset(arrays, 0, sizeof(*arrays) * NR_LEGACY_ATTRIBS);
/* Set up a constant (StrideB == 0) array for each current
* attribute:
*/
for (i = 0; i < NR_LEGACY_ATTRIBS; i++) {
struct gl_client_array *cl = &arrays[i];
switch (i) {
case VBO_ATTRIB_EDGEFLAG:
cl->Type = GL_UNSIGNED_BYTE;
cl->Ptr = (const void *)&ctx->Current.EdgeFlag;
break;
case VBO_ATTRIB_INDEX:
cl->Type = GL_FLOAT;
cl->Ptr = (const void *)&ctx->Current.Index;
break;
default:
cl->Type = GL_FLOAT;
cl->Ptr = (const void *)ctx->Current.Attrib[i];
break;
}
/* This will have to be determined at runtime:
*/
cl->Size = 1;
cl->Stride = 0;
cl->StrideB = 0;
cl->Enabled = 1;
cl->BufferObj = ctx->Array.NullBufferObj;
}
}
static void init_generic_currval(GLcontext *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct gl_client_array *arrays = vbo->generic_currval;
GLuint i;
memset(arrays, 0, sizeof(*arrays) * NR_GENERIC_ATTRIBS);
for (i = 0; i < NR_GENERIC_ATTRIBS; i++) {
struct gl_client_array *cl = &arrays[i];
/* This will have to be determined at runtime:
*/
cl->Size = 1;
cl->Type = GL_FLOAT;
cl->Ptr = (const void *)ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + i];
cl->Stride = 0;
cl->StrideB = 0;
cl->Enabled = 1;
cl->BufferObj = ctx->Array.NullBufferObj;
}
}
static void init_mat_currval(GLcontext *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct gl_client_array *arrays = vbo->mat_currval;
GLuint i;
memset(arrays, 0, sizeof(*arrays) * NR_GENERIC_ATTRIBS);
/* Set up a constant (StrideB == 0) array for each current
* attribute:
*/
for (i = 0; i < NR_GENERIC_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;
}
if (i < MAT_ATTRIB_MAX)
cl->Ptr = (const void *)ctx->Light.Material.Attrib[i];
else
cl->Ptr = (const void *)ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + i];
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 0;
cl->Enabled = 1;
cl->BufferObj = ctx->Array.NullBufferObj;
}
}
GLboolean _vbo_CreateContext( GLcontext *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;
}
/* 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 );
vbo_save_init( ctx );
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 16..32 generic range.
*/
for (i = 0; i < 16; i++)
vbo->map_vp_none[i] = i;
for (i = 0; i < 12; i++)
vbo->map_vp_none[16+i] = VBO_ATTRIB_MAT_FRONT_AMBIENT + i;
for (i = 0; i < 4; i++)
vbo->map_vp_none[28+i] = i;
for (i = 0; i < VERT_ATTRIB_MAX; i++)
vbo->map_vp_arb[i] = i;
}
/* By default:
*/
vbo->draw_prims = _tnl_draw_prims;
return GL_TRUE;
}
void _vbo_InvalidateState( GLcontext *ctx, GLuint new_state )
{
_ae_invalidate_state(ctx, new_state);
vbo_exec_invalidate_state(ctx, new_state);
}
void _vbo_DestroyContext( GLcontext *ctx )
{
if (ctx->aelt_context) {
_ae_destroy_context( ctx );
ctx->aelt_context = NULL;
}
FREE(vbo_context(ctx));
ctx->swtnl_im = NULL;
}
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