From cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Tue, 26 Dec 2000 05:09:27 +0000 Subject: Major rework of tnl module New array_cache module Support 8 texture units in core mesa (now support 8 everywhere) Rework core mesa statechange operations to avoid flushing on many noop statechanges. --- src/mesa/tnl/t_vb_texmat.c | 148 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 src/mesa/tnl/t_vb_texmat.c (limited to 'src/mesa/tnl/t_vb_texmat.c') diff --git a/src/mesa/tnl/t_vb_texmat.c b/src/mesa/tnl/t_vb_texmat.c new file mode 100644 index 0000000000..ea415a550e --- /dev/null +++ b/src/mesa/tnl/t_vb_texmat.c @@ -0,0 +1,148 @@ +/* $Id: t_vb_texmat.c,v 1.1 2000/12/26 05:09:33 keithw Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.5 + * + * Copyright (C) 1999-2000 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. + * + * Author: + * Keith Whitwell + */ + + +#include "glheader.h" +#include "colormac.h" +#include "context.h" +#include "macros.h" +#include "mem.h" +#include "mmath.h" +#include "mtypes.h" + +#include "math/m_xform.h" + +#include "t_context.h" +#include "t_pipeline.h" + +/* Is there any real benefit seperating texmat from texgen? It means + * we need two lots of intermediate storage. Any changes to + * _NEW_TEXTURE will invalidate both sets -- it's only on changes to + * *only* _NEW_TEXTURE_MATRIX that texgen survives but texmat doesn't. + * + * However, the seperation of this code from the complex texgen stuff + * is very appealing. + */ +struct texmat_stage_data { + GLvector4f texcoord[MAX_TEXTURE_UNITS]; +}; + +#define TEXMAT_STAGE_DATA(stage) ((struct texmat_stage_data *)stage->private) + +static void check_texmat( GLcontext *ctx, struct gl_pipeline_stage *stage ) +{ + GLuint i; + stage->active = 0; + + if (ctx->_Enabled & ENABLE_TEXMAT_ANY) { + GLuint flags = 0; + + for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) + if (ctx->_Enabled & ENABLE_TEXMAT(i)) + flags |= VERT_TEX(i); + + stage->active = 1; + stage->inputs = flags; + stage->outputs = flags; + } +} + +static GLboolean run_texmat_stage( GLcontext *ctx, + struct gl_pipeline_stage *stage ) +{ + struct texmat_stage_data *store = TEXMAT_STAGE_DATA(stage); + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLuint i; + + /* ENABLE_TEXMAT implies that the texture matrix is not the + * identity, so we don't have to check that here. + */ + for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) + if (ctx->_Enabled & ENABLE_TEXMAT(i)) { + if (stage->changed_inputs & VERT_TEX(i)) + (void) TransformRaw( &store->texcoord[i], &ctx->TextureMatrix[i], + VB->TexCoordPtr[i]); + + VB->TexCoordPtr[i] = &store->texcoord[i]; + } + return GL_TRUE; +} + + +/* Called the first time stage->run() is invoked. + */ +static GLboolean alloc_texmat_data( GLcontext *ctx, + struct gl_pipeline_stage *stage ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct texmat_stage_data *store; + GLuint i; + + stage->private = CALLOC(sizeof(*store)); + store = TEXMAT_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) + gl_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); + + /* Now run the stage. + */ + stage->run = run_texmat_stage; + return stage->run( ctx, stage ); +} + + +static void free_texmat_data( struct gl_pipeline_stage *stage ) +{ + struct texmat_stage_data *store = TEXMAT_STAGE_DATA(stage); + GLuint i; + + if (store) { + for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) + if (store->texcoord[i].data) + gl_vector4f_free( &store->texcoord[i] ); + FREE( store ); + stage->private = 0; + } +} + + + +const struct gl_pipeline_stage _tnl_texture_transform_stage = +{ + "texture transform", + _NEW_TEXTURE|_NEW_TEXTURE_MATRIX, + _NEW_TEXTURE|_NEW_TEXTURE_MATRIX, + 0,0,0, /* active, inputs, outputs */ + 0,0, /* changed_inputs, private */ + free_texmat_data, /* destructor */ + check_texmat, /* check */ + alloc_texmat_data, /* run -- initially set to init */ +}; -- cgit v1.2.3