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.
This commit is contained in:
Keith Whitwell
698
src/mesa/tnl/t_vb_render.c
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698
src/mesa/tnl/t_vb_render.c
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@@ -0,0 +1,698 @@
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/* $Id: t_vb_render.c,v 1.1 2000/12/26 05:09:33 keithw Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 3.5
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*
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* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* Render whole vertex buffers, including projection of vertices from
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* clip space and clipping of primitives.
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*
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* This file makes calls to project vertices and to the point, line
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* and triangle rasterizers via the function pointers:
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*
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* context->Driver.BuildProjectedVertices()
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* context->Driver.PointsFunc()
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* context->Driver.LineFunc()
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* context->Driver.TriangleFunc()
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* context->Driver.QuadFunc()
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*
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*/
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#include "glheader.h"
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#include "context.h"
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#include "colormac.h"
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#include "macros.h"
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#include "mem.h"
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#include "mtypes.h"
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#include "mmath.h"
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#include "math/m_matrix.h"
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#include "math/m_xform.h"
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#include "t_pipeline.h"
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typedef GLuint (*interp_func)( GLcontext *ctx,
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GLfloat t, GLuint in, GLuint out,
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GLboolean force_boundary );
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typedef void (*clip_line_func)( GLcontext *ctx,
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GLuint i, GLuint j,
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GLubyte mask);
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typedef void (*clip_poly_func)( GLcontext *ctx,
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GLuint n, GLuint vlist[],
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GLuint pv, GLubyte mask );
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typedef void (*render_func)( GLcontext *ctx,
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GLuint start,
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GLuint count,
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GLuint flags );
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struct render_stage_data {
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/* Clipping functions for current state.
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*/
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interp_func interp; /* Clip interpolation function */
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GLuint _ClipInputs; /* Inputs referenced by interpfunc */
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};
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#define RENDER_STAGE_DATA(stage) ((struct render_stage_data *)stage->private)
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static void render_poly_pv_raw_elts( GLcontext *ctx,
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GLuint start,
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GLuint count,
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GLuint flags,
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GLuint pv );
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/**********************************************************************/
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/* Interpolate between pairs of vertices */
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/**********************************************************************/
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#define INTERP_RGBA 0x1
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#define INTERP_TEX 0x2
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#define INTERP_INDEX 0x4
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#define INTERP_SPEC 0x8
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#define INTERP_FOG 0x10
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#define INTERP_EDGE 0x20
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#define MAX_INTERP 0x40
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#define LINTERP_SZ( t, vec, to, a, b, sz ) \
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do { \
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switch (sz) { \
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case 4: vec[to][3] = LINTERP( t, vec[a][3], vec[b][3] ); \
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case 3: vec[to][2] = LINTERP( t, vec[a][2], vec[b][2] ); \
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case 2: vec[to][1] = LINTERP( t, vec[a][1], vec[b][1] ); \
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case 1: vec[to][0] = LINTERP( t, vec[a][0], vec[b][0] ); \
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} \
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} while(0)
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#if 1
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#define LINTERP_RGBA(nr, t, out, a, b) { \
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int i; \
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for (i = 0; i < nr; i++) { \
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GLfloat fa = CHAN_TO_FLOAT(a[i]); \
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GLfloat fb = CHAN_TO_FLOAT(b[i]); \
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GLfloat fo = LINTERP(t, fa, fb); \
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FLOAT_COLOR_TO_CHAN(out[i], fo); \
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} \
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}
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#else
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#define LINTERP_RGBA(nr, t, out, a, b) { \
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int n; \
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const GLuint ti = FloatToInt(t*256.0F); \
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const GLubyte *Ib = (const GLubyte *)&a[0]; \
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const GLubyte *Jb = (const GLubyte *)&b[0]; \
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GLubyte *Ob = (GLubyte *)&out[0]; \
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\
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for (n = 0 ; n < nr ; n++) \
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Ob[n] = (GLubyte) (Ib[n] + ((ti * (Jb[n] - Ib[n]))/256)); \
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}
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#endif
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static interp_func interp_tab[0x80];
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#define IND (INTERP_RGBA)
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#define NAME interp_RGBA
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_SPEC)
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#define NAME interp_RGBA_SPEC
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_FOG)
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#define NAME interp_RGBA_FOG
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_FOG)
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#define NAME interp_RGBA_SPEC_FOG
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_TEX)
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#define NAME interp_RGBA_TEX
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_TEX)
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#define NAME interp_RGBA_SPEC_TEX
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_FOG|INTERP_TEX)
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#define NAME interp_RGBA_FOG_TEX
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_TEX)
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#define NAME interp_RGBA_SPEC_FOG_TEX
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#include "t_vb_interptmp.h"
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#define IND (INTERP_INDEX)
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#define NAME interp_INDEX
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#include "t_vb_interptmp.h"
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#define IND (INTERP_FOG|INTERP_INDEX)
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#define NAME interp_FOG_INDEX
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#include "t_vb_interptmp.h"
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#define IND (INTERP_TEX|INTERP_INDEX)
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#define NAME interp_TEX_INDEX
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#include "t_vb_interptmp.h"
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#define IND (INTERP_FOG|INTERP_TEX|INTERP_INDEX)
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#define NAME interp_FOG_TEX_INDEX
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_EDGE)
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#define NAME interp_RGBA_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_EDGE)
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#define NAME interp_RGBA_SPEC_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_FOG|INTERP_EDGE)
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#define NAME interp_RGBA_FOG_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_EDGE)
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#define NAME interp_RGBA_SPEC_FOG_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_TEX|INTERP_EDGE)
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#define NAME interp_RGBA_TEX_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_TEX|INTERP_EDGE)
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#define NAME interp_RGBA_SPEC_TEX_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_FOG|INTERP_TEX|INTERP_EDGE)
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#define NAME interp_RGBA_FOG_TEX_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_TEX|INTERP_EDGE)
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#define NAME interp_RGBA_SPEC_FOG_TEX_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_INDEX|INTERP_EDGE)
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#define NAME interp_INDEX_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_FOG|INTERP_INDEX|INTERP_EDGE)
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#define NAME interp_FOG_INDEX_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_TEX|INTERP_INDEX|INTERP_EDGE)
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#define NAME interp_TEX_INDEX_EDGE
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#include "t_vb_interptmp.h"
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#define IND (INTERP_FOG|INTERP_TEX|INTERP_INDEX|INTERP_EDGE)
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#define NAME interp_FOG_TEX_INDEX_EDGE
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#include "t_vb_interptmp.h"
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static GLuint interp_invalid( GLcontext *ctx,
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GLfloat t,
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GLuint in, GLuint out,
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GLboolean boundary )
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{
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(void)(ctx && t && in && out && boundary);
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fprintf(stderr, "Invalid interpolation function in t_vbrender.c\n");
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return in;
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}
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static void interp_init( void )
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{
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GLuint i;
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/* Use the maximal function as the default. I don't believe any of
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* the non-implemented combinations are reachable, but this gives
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* some safety from crashes.
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*/
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for (i = 0 ; i < Elements(interp_tab) ; i++)
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interp_tab[i] = interp_invalid;
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interp_tab[INTERP_RGBA] = interp_RGBA;
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interp_tab[INTERP_RGBA|INTERP_SPEC] = interp_RGBA_SPEC;
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interp_tab[INTERP_RGBA|INTERP_FOG] = interp_RGBA_FOG;
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interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_FOG] = interp_RGBA_SPEC_FOG;
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interp_tab[INTERP_RGBA|INTERP_TEX] = interp_RGBA_TEX;
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interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_TEX] = interp_RGBA_SPEC_TEX;
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interp_tab[INTERP_RGBA|INTERP_FOG|INTERP_TEX] = interp_RGBA_FOG_TEX;
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interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_TEX] = interp_RGBA_SPEC_FOG_TEX;
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interp_tab[INTERP_INDEX] = interp_INDEX;
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interp_tab[INTERP_FOG|INTERP_INDEX] = interp_FOG_INDEX;
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interp_tab[INTERP_TEX|INTERP_INDEX] = interp_TEX_INDEX;
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interp_tab[INTERP_FOG|INTERP_TEX|INTERP_INDEX] = interp_FOG_TEX_INDEX;
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interp_tab[INTERP_RGBA|INTERP_EDGE] = interp_RGBA_EDGE;
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interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_EDGE] = interp_RGBA_SPEC_EDGE;
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interp_tab[INTERP_RGBA|INTERP_FOG|INTERP_EDGE] = interp_RGBA_FOG_EDGE;
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interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_EDGE] = interp_RGBA_SPEC_FOG_EDGE;
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interp_tab[INTERP_RGBA|INTERP_TEX|INTERP_EDGE] = interp_RGBA_TEX_EDGE;
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interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_TEX|INTERP_EDGE] = interp_RGBA_SPEC_TEX_EDGE;
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interp_tab[INTERP_RGBA|INTERP_FOG|INTERP_TEX|INTERP_EDGE] = interp_RGBA_FOG_TEX_EDGE;
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interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_TEX|INTERP_EDGE] = interp_RGBA_SPEC_FOG_TEX_EDGE;
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interp_tab[INTERP_INDEX|INTERP_EDGE] = interp_INDEX_EDGE;
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interp_tab[INTERP_FOG|INTERP_INDEX|INTERP_EDGE] = interp_FOG_INDEX_EDGE;
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interp_tab[INTERP_TEX|INTERP_INDEX|INTERP_EDGE] = interp_TEX_INDEX_EDGE;
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interp_tab[INTERP_FOG|INTERP_TEX|INTERP_INDEX|INTERP_EDGE] = interp_FOG_TEX_INDEX_EDGE;
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}
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/**********************************************************************/
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/* Clip single primitives */
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/**********************************************************************/
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#if 0
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#define NEGATIVE(x) ((*(int *)&x)<0)
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#define DIFFERENT_SIGNS(a,b) ((a*b) < 0)
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#else
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#define NEGATIVE(x) (x < 0)
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#define DIFFERENT_SIGNS(a,b) ((a*b) < 0)
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#endif
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#define W(i) coord[i][3]
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#define Z(i) coord[i][2]
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#define Y(i) coord[i][1]
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#define X(i) coord[i][0]
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#define SIZE 4
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#define TAG(x) x##_4
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#include "t_vb_cliptmp.h"
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#define W(i) 1.0
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#define Z(i) coord[i][2]
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#define Y(i) coord[i][1]
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#define X(i) coord[i][0]
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#define SIZE 3
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#define TAG(x) x##_3
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#include "t_vb_cliptmp.h"
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#define W(i) 1.0
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#define Z(i) 0.0
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#define Y(i) coord[i][1]
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#define X(i) coord[i][0]
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#define SIZE 2
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#define TAG(x) x##_2
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#include "t_vb_cliptmp.h"
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static clip_poly_func clip_poly_tab[5] = {
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0,
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0,
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viewclip_polygon_2,
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viewclip_polygon_3,
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viewclip_polygon_4
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};
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static clip_line_func clip_line_tab[5] = {
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0,
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0,
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viewclip_line_2,
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viewclip_line_3,
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viewclip_line_4
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};
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/**********************************************************************/
|
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/* Clip and render single primitives */
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/**********************************************************************/
|
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static INLINE void draw_line(GLcontext *ctx, GLuint v1, GLuint v2 )
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{
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struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
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GLubyte c1 = VB->ClipMask[v1], c2 = VB->ClipMask[v2];
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GLubyte ormask = c1|c2;
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if (!ormask)
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ctx->Driver.LineFunc( ctx, v1, v2, v2 );
|
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else if (!(c1 & c2 & 0x3f))
|
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clip_line_tab[VB->ClipPtr->size]( ctx, v1, v2, ormask );
|
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}
|
||||
|
||||
static INLINE void draw_triangle(GLcontext *ctx,
|
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GLuint v1, GLuint v2, GLuint v3,
|
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GLuint pv )
|
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{
|
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struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
|
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GLubyte c1 = VB->ClipMask[v1], c2 = VB->ClipMask[v2], c3 = VB->ClipMask[v3];
|
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GLubyte ormask = c1|c2|c3;
|
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if (!ormask)
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ctx->Driver.TriangleFunc( ctx, v1, v2, v3, pv );
|
||||
else if (!(c1 & c2 & c3 & 0x3f)) {
|
||||
GLuint vlist[MAX_CLIPPED_VERTICES];
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ASSIGN_3V(vlist, v1, v2, v3 );
|
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clip_poly_tab[VB->ClipPtr->size]( ctx, 3, vlist, pv, ormask );
|
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}
|
||||
}
|
||||
|
||||
|
||||
static INLINE void draw_quad( GLcontext *ctx,
|
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GLuint v1, GLuint v2, GLuint v3,
|
||||
GLuint v4, GLuint pv )
|
||||
{
|
||||
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
|
||||
GLubyte c1 = VB->ClipMask[v1], c2 = VB->ClipMask[v2];
|
||||
GLubyte c3 = VB->ClipMask[v3], c4 = VB->ClipMask[v4];
|
||||
GLubyte ormask = c1|c2|c3|c4;
|
||||
if (!ormask)
|
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ctx->Driver.QuadFunc( ctx, v1, v2, v3, v4, pv );
|
||||
else if (!(c1 & c2 & c3 & c4 & 0x3f)) {
|
||||
GLuint vlist[MAX_CLIPPED_VERTICES];
|
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ASSIGN_4V(vlist, v1, v2, v3, v4 );
|
||||
clip_poly_tab[VB->ClipPtr->size]( ctx, 4, vlist, pv, ormask );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************/
|
||||
/* Clip and render whole begin/end objects */
|
||||
/**********************************************************************/
|
||||
|
||||
#define NEED_EDGEFLAG_SETUP (ctx->_TriangleCaps & DD_TRI_UNFILLED)
|
||||
#define EDGEFLAG_GET(idx) VB->EdgeFlagPtr->data[idx]
|
||||
#define EDGEFLAG_SET(idx, val) VB->EdgeFlagPtr->data[idx] = val
|
||||
|
||||
|
||||
/* Vertices, no clipping.
|
||||
*/
|
||||
#define RENDER_POINTS( start, count ) \
|
||||
ctx->Driver.PointsFunc( ctx, start, count-1 )
|
||||
|
||||
#define RENDER_LINE( i1, i ) \
|
||||
ctx->Driver.LineFunc( ctx, i1, i, i )
|
||||
|
||||
#define RENDER_TRI( i2, i1, i, pv, parity ) \
|
||||
do { \
|
||||
if (parity) \
|
||||
ctx->Driver.TriangleFunc( ctx, i1, i2, i, pv ); \
|
||||
else \
|
||||
ctx->Driver.TriangleFunc( ctx, i2, i1, i, pv ); \
|
||||
} while (0)
|
||||
|
||||
#define RENDER_QUAD( i3, i2, i1, i, pv ) \
|
||||
ctx->Driver.QuadFunc( ctx, i3, i2, i1, i, pv );
|
||||
|
||||
#define TAG(x) x##_raw
|
||||
|
||||
#define LOCAL_VARS \
|
||||
struct vertex_buffer *VB = &(TNL_CONTEXT(ctx)->vb); \
|
||||
(void) VB;
|
||||
|
||||
#define RESET_STIPPLE ctx->Driver.ResetLineStipple( ctx )
|
||||
#define RESET_OCCLUSION ctx->OcclusionResult = GL_TRUE;
|
||||
#define PRESERVE_VB_DEFS
|
||||
#include "t_vb_rendertmp.h"
|
||||
|
||||
|
||||
/* Elts, no clipping.
|
||||
*/
|
||||
#undef ELT
|
||||
#undef TAG
|
||||
#undef LOCAL_VARS
|
||||
#define TAG(x) x##_raw_elts
|
||||
#define ELT(x) elt[x]
|
||||
#define LOCAL_VARS \
|
||||
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; \
|
||||
const GLuint * const elt = VB->Elts; \
|
||||
(void) elt;
|
||||
#include "t_vb_rendertmp.h"
|
||||
|
||||
|
||||
|
||||
|
||||
/* Vertices, with the possibility of clipping.
|
||||
*/
|
||||
#define RENDER_POINTS( start, count ) \
|
||||
ctx->Driver.PointsFunc( ctx, start, count-1 )
|
||||
|
||||
#define RENDER_LINE( i1, i ) \
|
||||
draw_line( ctx, i1, i )
|
||||
|
||||
#define RENDER_TRI( i2, i1, i, pv, parity) \
|
||||
do { \
|
||||
GLuint e2=i2, e1=i1; \
|
||||
if (parity) { GLuint t=e2; e2=e1; e1=t; } \
|
||||
draw_triangle(ctx,e2,e1,i,pv); \
|
||||
} while (0)
|
||||
|
||||
#define RENDER_QUAD( i3, i2, i1, i, pv) \
|
||||
draw_quad(ctx,i3,i2,i1,i,pv)
|
||||
|
||||
|
||||
#define LOCAL_VARS \
|
||||
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; \
|
||||
(void)VB;
|
||||
|
||||
#define TAG(x) x##_clipped
|
||||
#define RESET_STIPPLE ctx->Driver.ResetLineStipple( ctx )
|
||||
#define RESET_OCCLUSION ctx->OcclusionResult = GL_TRUE;
|
||||
#define PRESERVE_VB_DEFS
|
||||
#include "t_vb_rendertmp.h"
|
||||
|
||||
|
||||
|
||||
/* Elts, with the possibility of clipping.
|
||||
*/
|
||||
#undef ELT
|
||||
#undef TAG
|
||||
#undef LOCAL_VARS
|
||||
#define ELT(x) elt[x]
|
||||
#define LOCAL_VARS \
|
||||
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; \
|
||||
const GLuint * const elt = VB->Elts; \
|
||||
(void) elt;
|
||||
#define TAG(x) x##_clipped_elts
|
||||
|
||||
#include "t_vb_rendertmp.h"
|
||||
|
||||
|
||||
|
||||
/**********************************************************************/
|
||||
/* Clip and render whole vertex buffers */
|
||||
/**********************************************************************/
|
||||
|
||||
|
||||
static GLboolean run_render( GLcontext *ctx,
|
||||
struct gl_pipeline_stage *stage )
|
||||
{
|
||||
TNLcontext *tnl = TNL_CONTEXT(ctx);
|
||||
struct vertex_buffer *VB = &tnl->vb;
|
||||
GLuint new_inputs = stage->changed_inputs;
|
||||
render_func *tab;
|
||||
GLint pass = 0;
|
||||
|
||||
VB->interpfunc = (void *)RENDER_STAGE_DATA(stage)->interp;
|
||||
|
||||
if (new_inputs) {
|
||||
GLuint importable = new_inputs & VB->importable_data;
|
||||
GLuint interested = 0;
|
||||
|
||||
if (VB->ClipOrMask)
|
||||
interested = ~0;
|
||||
|
||||
if (ctx->_TriangleCaps & DD_TRI_UNFILLED)
|
||||
interested |= VERT_EDGE;
|
||||
|
||||
importable &= interested;
|
||||
|
||||
if (importable)
|
||||
VB->import_data( ctx, importable, VEC_NOT_WRITEABLE|VEC_BAD_STRIDE);
|
||||
|
||||
if (ctx->Driver.BuildProjectedVertices)
|
||||
ctx->Driver.BuildProjectedVertices( ctx, 0, VB->Count, new_inputs);
|
||||
}
|
||||
|
||||
/* Rendering is considered a side-effect, and must be repeated each
|
||||
* time the stage is run, even if no inputs have changed.
|
||||
*/
|
||||
if (VB->Elts) {
|
||||
tab = VB->ClipOrMask ? render_tab_clipped_elts : render_tab_raw_elts;
|
||||
} else {
|
||||
tab = VB->ClipOrMask ? render_tab_clipped : render_tab_raw;
|
||||
}
|
||||
|
||||
if (ctx->Driver.RenderStart)
|
||||
ctx->Driver.RenderStart( ctx );
|
||||
|
||||
do
|
||||
{
|
||||
GLuint i, length, flags = 0;
|
||||
for (i = 0 ; !(flags & PRIM_LAST) ; i += length)
|
||||
{
|
||||
flags = VB->Primitive[i];
|
||||
length= VB->PrimitiveLength[i];
|
||||
ASSERT(length || (flags & PRIM_LAST));
|
||||
ASSERT((flags & PRIM_MODE_MASK) <= GL_POLYGON+1);
|
||||
if (length)
|
||||
tab[flags & PRIM_MODE_MASK]( ctx, i, i + length, flags );
|
||||
}
|
||||
} while (ctx->Driver.MultipassFunc &&
|
||||
ctx->Driver.MultipassFunc( ctx, ++pass ));
|
||||
|
||||
if (ctx->Driver.RenderFinish)
|
||||
ctx->Driver.RenderFinish( ctx );
|
||||
|
||||
return GL_FALSE; /* finished the pipe */
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************/
|
||||
/* Render pipeline stage */
|
||||
/**********************************************************************/
|
||||
|
||||
|
||||
|
||||
/* Quite a bit of work involved in finding out the inputs for the
|
||||
* render stage. This function also identifies which vertex
|
||||
* interpolation function to use, as these are essentially the same
|
||||
* question.
|
||||
*/
|
||||
static void check_render( GLcontext *ctx, struct gl_pipeline_stage *stage )
|
||||
{
|
||||
struct render_stage_data *store = RENDER_STAGE_DATA(stage);
|
||||
GLuint interp = 0;
|
||||
GLuint inputs = VERT_CLIP;
|
||||
GLuint i;
|
||||
|
||||
if (ctx->Visual.RGBAflag)
|
||||
{
|
||||
interp |= INTERP_RGBA;
|
||||
inputs |= VERT_RGBA;
|
||||
|
||||
if (ctx->_TriangleCaps & DD_SEPERATE_SPECULAR) {
|
||||
interp |= INTERP_SPEC;
|
||||
inputs |= VERT_SPEC_RGB;
|
||||
}
|
||||
|
||||
if (ctx->Texture._ReallyEnabled) {
|
||||
interp |= INTERP_TEX;
|
||||
|
||||
for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) {
|
||||
if (ctx->Texture.Unit[i]._ReallyEnabled)
|
||||
inputs |= VERT_TEX(i);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (ctx->Light.ShadeModel==GL_SMOOTH)
|
||||
{
|
||||
interp |= INTERP_INDEX;
|
||||
inputs |= VERT_INDEX;
|
||||
}
|
||||
|
||||
if (ctx->Point._Attenuated)
|
||||
inputs |= VERT_POINT_SIZE;
|
||||
|
||||
/* How do drivers turn this off?
|
||||
*/
|
||||
if (ctx->Fog.Enabled) {
|
||||
interp |= INTERP_FOG;
|
||||
inputs |= VERT_FOG_COORD;
|
||||
}
|
||||
|
||||
if (ctx->_TriangleCaps & DD_TRI_UNFILLED) {
|
||||
inputs |= VERT_EDGE;
|
||||
}
|
||||
|
||||
if (ctx->RenderMode==GL_FEEDBACK) {
|
||||
interp |= INTERP_TEX;
|
||||
inputs |= VERT_TEX_ANY;
|
||||
}
|
||||
|
||||
store->interp = interp_tab[interp];
|
||||
stage->inputs = inputs;
|
||||
}
|
||||
|
||||
|
||||
/* Called the first time stage->check() is invoked.
|
||||
*/
|
||||
static void alloc_render_data( GLcontext *ctx,
|
||||
struct gl_pipeline_stage *stage )
|
||||
{
|
||||
struct render_stage_data *store;
|
||||
static GLboolean first_time = 1;
|
||||
|
||||
if (first_time) {
|
||||
interp_init();
|
||||
first_time = 0;
|
||||
}
|
||||
|
||||
stage->private = MALLOC(sizeof(*store));
|
||||
if (!stage->private)
|
||||
return;
|
||||
|
||||
/* Now do the check.
|
||||
*/
|
||||
stage->check = check_render;
|
||||
stage->check( ctx, stage );
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void dtr( struct gl_pipeline_stage *stage )
|
||||
{
|
||||
struct render_stage_data *store = RENDER_STAGE_DATA(stage);
|
||||
if (store) {
|
||||
FREE( store );
|
||||
stage->private = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
const struct gl_pipeline_stage _tnl_render_stage =
|
||||
{
|
||||
"render",
|
||||
(_NEW_BUFFERS |
|
||||
_DD_NEW_SEPERATE_SPECULAR |
|
||||
_NEW_TEXTURE|
|
||||
_NEW_LIGHT|
|
||||
_NEW_POINT|
|
||||
_NEW_FOG|
|
||||
_DD_NEW_TRI_UNFILLED |
|
||||
_NEW_RENDERMODE), /* re-check (new inputs, interp function) */
|
||||
0, /* re-run (always runs) */
|
||||
GL_TRUE, /* active */
|
||||
0, 0, /* inputs (set in check_render), outputs */
|
||||
0, 0, /* changed_inputs, private */
|
||||
dtr, /* destructor */
|
||||
alloc_render_data, /* check - initially set to alloc data */
|
||||
run_render /* run */
|
||||
};
|
||||
Reference in New Issue
Block a user