006a9e008b
The OpenGL software renderer add-on should follow soon. Allow to link GLTeapot as native, but without renderer, nothing is displayed ;-) git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13283 a95241bf-73f2-0310-859d-f6bbb57e9c96
276 lines
6.3 KiB
C
276 lines
6.3 KiB
C
/*
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* Mesa 3-D graphics library
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* Version: 6.1
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*
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* Copyright (C) 1999-2004 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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#include "glheader.h"
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#include "colormac.h"
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#include "context.h"
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#include "macros.h"
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#include "texstate.h"
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#include "s_context.h"
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#include "s_feedback.h"
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#include "s_points.h"
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#include "s_span.h"
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#define RGBA 0x1
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#define INDEX 0x2
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#define SMOOTH 0x4
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#define TEXTURE 0x8
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#define SPECULAR 0x10
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#define LARGE 0x20
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#define ATTENUATE 0x40
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#define SPRITE 0x80
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/*
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* CI points with size == 1.0
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*/
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#define FLAGS (INDEX)
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#define NAME size1_ci_point
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#include "s_pointtemp.h"
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/*
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* General CI points.
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*/
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#define FLAGS (INDEX | LARGE)
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#define NAME general_ci_point
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#include "s_pointtemp.h"
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/*
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* Antialiased CI points.
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*/
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#define FLAGS (INDEX | SMOOTH)
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#define NAME antialiased_ci_point
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#include "s_pointtemp.h"
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/*
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* Distance attenuated, general CI points.
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*/
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#define FLAGS (INDEX | ATTENUATE)
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#define NAME atten_general_ci_point
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#include "s_pointtemp.h"
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/*
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* RGBA points with size == 1.0
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*/
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#define FLAGS (RGBA)
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#define NAME size1_rgba_point
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#include "s_pointtemp.h"
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/*
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* General RGBA points.
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*/
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#define FLAGS (RGBA | LARGE)
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#define NAME general_rgba_point
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#include "s_pointtemp.h"
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/*
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* Antialiased RGBA points.
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*/
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#define FLAGS (RGBA | SMOOTH)
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#define NAME antialiased_rgba_point
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#include "s_pointtemp.h"
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/*
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* Textured RGBA points.
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*/
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#define FLAGS (RGBA | LARGE | TEXTURE | SPECULAR)
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#define NAME textured_rgba_point
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#include "s_pointtemp.h"
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/*
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* Antialiased points with texture mapping.
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*/
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#define FLAGS (RGBA | SMOOTH | TEXTURE | SPECULAR)
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#define NAME antialiased_tex_rgba_point
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#include "s_pointtemp.h"
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/*
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* Distance attenuated, general RGBA points.
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*/
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#define FLAGS (RGBA | ATTENUATE)
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#define NAME atten_general_rgba_point
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#include "s_pointtemp.h"
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/*
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* Distance attenuated, textured RGBA points.
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*/
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#define FLAGS (RGBA | ATTENUATE | TEXTURE | SPECULAR)
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#define NAME atten_textured_rgba_point
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#include "s_pointtemp.h"
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/*
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* Distance attenuated, antialiased points with or without texture mapping.
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*/
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#define FLAGS (RGBA | ATTENUATE | TEXTURE | SMOOTH)
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#define NAME atten_antialiased_rgba_point
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#include "s_pointtemp.h"
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/*
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* Sprite (textured point)
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*/
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#define FLAGS (RGBA | SPRITE | SPECULAR)
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#define NAME sprite_point
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#include "s_pointtemp.h"
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#define FLAGS (RGBA | SPRITE | SPECULAR | ATTENUATE)
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#define NAME atten_sprite_point
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#include "s_pointtemp.h"
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void _swrast_add_spec_terms_point( GLcontext *ctx,
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const SWvertex *v0 )
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{
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SWvertex *ncv0 = (SWvertex *)v0;
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GLchan c[1][4];
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COPY_CHAN4( c[0], ncv0->color );
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ACC_3V( ncv0->color, ncv0->specular );
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SWRAST_CONTEXT(ctx)->SpecPoint( ctx, ncv0 );
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COPY_CHAN4( ncv0->color, c[0] );
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}
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/* record the current point function name */
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#ifdef DEBUG
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static const char *pntFuncName = NULL;
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#define USE(pntFunc) \
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do { \
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pntFuncName = #pntFunc; \
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/*printf("%s\n", pntFuncName);*/ \
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swrast->Point = pntFunc; \
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} while (0)
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#else
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#define USE(pntFunc) swrast->Point = pntFunc
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#endif
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/*
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* Examine the current context to determine which point drawing function
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* should be used.
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*/
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void
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_swrast_choose_point( GLcontext *ctx )
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{
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SWcontext *swrast = SWRAST_CONTEXT(ctx);
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GLboolean rgbMode = ctx->Visual.rgbMode;
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if (ctx->RenderMode==GL_RENDER) {
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if (ctx->Point.PointSprite) {
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/* GL_ARB_point_sprite / GL_NV_point_sprite */
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/* XXX this might not be good enough */
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if (ctx->Point._Attenuated)
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USE(atten_sprite_point);
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else
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USE(sprite_point);
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}
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else if (ctx->Point.SmoothFlag) {
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/* Smooth points */
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if (rgbMode) {
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if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) {
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USE(atten_antialiased_rgba_point);
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}
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else if (ctx->Texture._EnabledCoordUnits) {
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USE(antialiased_tex_rgba_point);
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}
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else {
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USE(antialiased_rgba_point);
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}
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}
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else {
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USE(antialiased_ci_point);
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}
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}
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else if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) {
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if (rgbMode) {
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if (ctx->Texture._EnabledCoordUnits) {
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if (ctx->Point.SmoothFlag) {
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USE(atten_antialiased_rgba_point);
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}
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else {
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USE(atten_textured_rgba_point);
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}
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}
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else {
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USE(atten_general_rgba_point);
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}
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}
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else {
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/* ci, atten */
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USE(atten_general_ci_point);
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}
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}
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else if (ctx->Texture._EnabledCoordUnits && rgbMode) {
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/* textured */
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USE(textured_rgba_point);
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}
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else if (ctx->Point._Size != 1.0) {
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/* large points */
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if (rgbMode) {
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USE(general_rgba_point);
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}
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else {
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USE(general_ci_point);
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}
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}
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else {
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/* single pixel points */
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if (rgbMode) {
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USE(size1_rgba_point);
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}
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else {
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USE(size1_ci_point);
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}
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}
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}
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else if (ctx->RenderMode==GL_FEEDBACK) {
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USE(_swrast_feedback_point);
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}
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else {
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/* GL_SELECT mode */
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USE(_swrast_select_point);
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}
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}
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