home *** CD-ROM | disk | FTP | other *** search
- /* $Id: vbfill.c,v 1.17 1997/11/14 03:02:53 brianp Exp $ */
-
- /*
- * Mesa 3-D graphics library
- * Version: 2.5
- * Copyright (C) 1995-1997 Brian Paul
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- /*
- * $Log: vbfill.c,v $
- * Revision 1.17 1997/11/14 03:02:53 brianp
- * clamp floating point color components to [0,1] before int conversion
- *
- * Revision 1.16 1997/08/13 01:31:11 brianp
- * LightTwoSide is now a GLboolean
- *
- * Revision 1.15 1997/07/24 01:25:27 brianp
- * changed precompiled header symbol from PCH to PC_HEADER
- *
- * Revision 1.14 1997/06/20 02:47:41 brianp
- * added Color4ubv API pointer
- *
- * Revision 1.13 1997/06/20 02:46:49 brianp
- * changed color components from GLfixed to GLubyte
- *
- * Revision 1.12 1997/05/28 03:26:49 brianp
- * added precompiled header (PCH) support
- *
- * Revision 1.11 1997/05/27 03:13:41 brianp
- * removed some debugging code
- *
- * Revision 1.10 1997/04/28 02:05:44 brianp
- * renamed some vertex functions, also save color with texcoords
- *
- * Revision 1.9 1997/04/24 01:50:53 brianp
- * optimized glColor3f, glColor3fv, glColor4fv
- *
- * Revision 1.8 1997/04/24 00:30:17 brianp
- * optimized glTexCoord2() code
- *
- * Revision 1.7 1997/04/20 15:59:30 brianp
- * removed VERTEX2_BIT stuff
- *
- * Revision 1.6 1997/04/16 23:55:33 brianp
- * added optimized glTexCoord2f code
- *
- * Revision 1.5 1997/04/14 22:18:23 brianp
- * added optimized glVertex3fv code
- *
- * Revision 1.4 1997/04/12 16:21:54 brianp
- * added ctx->Exec.Vertex2f = vertex2_feedback; statement
- *
- * Revision 1.3 1997/04/12 12:23:26 brianp
- * fixed 3 bugs in gl_eval_vertex
- *
- * Revision 1.2 1997/04/07 03:01:11 brianp
- * optimized vertex[234] code
- *
- * Revision 1.1 1997/04/02 03:13:56 brianp
- * Initial revision
- *
- */
-
-
- /*
- * This file implements the functions for filling the vertex buffer:
- * glVertex, glNormal, glColor, glIndex, glEdgeFlag, glTexCoord,
- */
-
-
- #ifdef PC_HEADER
- #include "all.h"
- #else
- #include <assert.h>
- #include <stdio.h>
- #include "context.h"
- #include "light.h"
- #include "clip.h"
- #include "dlist.h"
- #include "feedback.h"
- #include "macros.h"
- #include "matrix.h"
- #include "pb.h"
- #include "types.h"
- #include "vb.h"
- #include "vbfill.h"
- #include "vbxform.h"
- #include "xform.h"
- #endif
-
-
-
- /**********************************************************************/
- /****** glNormal functions *****/
- /**********************************************************************/
-
- /*
- * Caller: context->API.Normal3f pointer.
- */
- void gl_Normal3f( GLcontext *ctx, GLfloat nx, GLfloat ny, GLfloat nz )
- {
- ctx->Current.Normal[0] = nx;
- ctx->Current.Normal[1] = ny;
- ctx->Current.Normal[2] = nz;
- ctx->VB->MonoNormal = GL_FALSE;
- }
-
-
- /*
- * Caller: context->API.Normal3fv pointer.
- */
- void gl_Normal3fv( GLcontext *ctx, const GLfloat *n )
- {
- ctx->Current.Normal[0] = n[0];
- ctx->Current.Normal[1] = n[1];
- ctx->Current.Normal[2] = n[2];
- ctx->VB->MonoNormal = GL_FALSE;
- }
-
-
-
- /**********************************************************************/
- /****** glIndex functions *****/
- /**********************************************************************/
-
- /*
- * Caller: context->API.Indexf pointer.
- */
- void gl_Indexf( GLcontext *ctx, GLfloat c )
- {
- ctx->Current.Index = (GLuint) (GLint) c;
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * Caller: context->API.Indexi pointer.
- */
- void gl_Indexi( GLcontext *ctx, GLint c )
- {
- ctx->Current.Index = (GLuint) c;
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
-
- /**********************************************************************/
- /****** glColor functions *****/
- /**********************************************************************/
-
- /*
- * Caller: context->API.Color3f pointer.
- */
- void gl_Color3f( GLcontext *ctx, GLfloat red, GLfloat green, GLfloat blue )
- {
- ctx->Current.ByteColor[0] = CLAMP(red , 0.0F, 1.0F) * ctx->Visual->RedScale;
- ctx->Current.ByteColor[1] = CLAMP(green, 0.0F, 1.0F) * ctx->Visual->GreenScale;
- ctx->Current.ByteColor[2] = CLAMP(blue , 0.0F, 1.0F) * ctx->Visual->BlueScale;
- ctx->Current.ByteColor[3] = ctx->Visual->AlphaScale;
- ASSERT( !ctx->Light.ColorMaterialEnabled );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * Caller: context->API.Color3fv pointer.
- */
- void gl_Color3fv( GLcontext *ctx, const GLfloat *c )
- {
- ctx->Current.ByteColor[0] = CLAMP(c[0], 0.0F, 1.0F) * ctx->Visual->RedScale;
- ctx->Current.ByteColor[1] = CLAMP(c[1], 0.0F, 1.0F) * ctx->Visual->GreenScale;
- ctx->Current.ByteColor[2] = CLAMP(c[2], 0.0F, 1.0F) * ctx->Visual->BlueScale;
- ctx->Current.ByteColor[3] = ctx->Visual->AlphaScale;
-
- ASSERT( !ctx->Light.ColorMaterialEnabled );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * Caller: context->API.Color4f pointer.
- */
- void gl_Color4f( GLcontext *ctx,
- GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha )
- {
- ctx->Current.ByteColor[0] = CLAMP(red , 0.0F, 1.0F) * ctx->Visual->RedScale;
- ctx->Current.ByteColor[1] = CLAMP(green, 0.0F, 1.0F) * ctx->Visual->GreenScale;
- ctx->Current.ByteColor[2] = CLAMP(blue , 0.0F, 1.0F) * ctx->Visual->BlueScale;
- ctx->Current.ByteColor[3] = CLAMP(alpha, 0.0F, 1.0F) * ctx->Visual->AlphaScale;
- ASSERT( !ctx->Light.ColorMaterialEnabled );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * Caller: context->API.Color4fv pointer.
- */
- void gl_Color4fv( GLcontext *ctx, const GLfloat *c )
- {
- ctx->Current.ByteColor[0] = CLAMP(c[0], 0.0F, 1.0F) * ctx->Visual->RedScale;
- ctx->Current.ByteColor[1] = CLAMP(c[1], 0.0F, 1.0F) * ctx->Visual->GreenScale;
- ctx->Current.ByteColor[2] = CLAMP(c[2], 0.0F, 1.0F) * ctx->Visual->BlueScale;
- ctx->Current.ByteColor[3] = CLAMP(c[3], 0.0F, 1.0F) * ctx->Visual->AlphaScale;
- ASSERT( !ctx->Light.ColorMaterialEnabled );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * Used when colors are not scaled to [0,255]
- * Caller: context->API.Color4ub pointer.
- */
- void gl_Color4ub( GLcontext *ctx,
- GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha )
- {
- ctx->Current.ByteColor[0] = red * ctx->Visual->RedScale * (1.0F/255.0F);
- ctx->Current.ByteColor[1] = green * ctx->Visual->GreenScale * (1.0F/255.0F);
- ctx->Current.ByteColor[2] = blue * ctx->Visual->BlueScale * (1.0F/255.0F);
- ctx->Current.ByteColor[3] = alpha * ctx->Visual->AlphaScale * (1.0F/255.0F);
- ASSERT( !ctx->Light.ColorMaterialEnabled );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * Used when colors are scaled to [0,255].
- * Caller: context->API.Color4ub pointer.
- */
- void gl_Color4ub8bit( GLcontext *ctx,
- GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha )
- {
- ASSIGN_4V( ctx->Current.ByteColor, red, green, blue, alpha );
- ASSERT( !ctx->Light.ColorMaterialEnabled );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * Used when colors are not scaled to [0,255]
- * Caller: context->API.Color4ub pointer.
- */
- void gl_Color4ubv( GLcontext *ctx, const GLubyte *c )
- {
- ctx->Current.ByteColor[0] = c[0] * ctx->Visual->RedScale * (1.0F/255.0F);
- ctx->Current.ByteColor[1] = c[1] * ctx->Visual->GreenScale * (1.0F/255.0F);
- ctx->Current.ByteColor[2] = c[2] * ctx->Visual->BlueScale * (1.0F/255.0F);
- ctx->Current.ByteColor[3] = c[3] * ctx->Visual->AlphaScale * (1.0F/255.0F);
- ASSERT( !ctx->Light.ColorMaterialEnabled );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * Used when colors are scaled to [0,255].
- * Caller: context->API.Color4ub pointer.
- */
- void gl_Color4ubv8bit( GLcontext *ctx, const GLubyte *c )
- {
- COPY_4UBV( ctx->Current.ByteColor, c );
- ASSERT( !ctx->Light.ColorMaterialEnabled );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * glColor() which modifies material(s).
- * Caller: context->API.Color3f pointer.
- */
- void gl_ColorMat3f( GLcontext *ctx, GLfloat red, GLfloat green, GLfloat blue )
- {
- GLfloat color[4];
- ctx->Current.ByteColor[0] = CLAMP(red , 0.0F, 1.0F) * ctx->Visual->RedScale;
- ctx->Current.ByteColor[1] = CLAMP(green, 0.0F, 1.0F) * ctx->Visual->GreenScale;
- ctx->Current.ByteColor[2] = CLAMP(blue , 0.0F, 1.0F) * ctx->Visual->BlueScale;
- ctx->Current.ByteColor[3] = ctx->Visual->AlphaScale;
- /* update material */
- ASSERT( ctx->Light.ColorMaterialEnabled );
- ASSIGN_4V( color, red, green, blue, 1.0F );
- gl_set_material( ctx, ctx->Light.ColorMaterialBitmask, color );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * glColor() which modifies material(s).
- * Caller: context->API.Color3fv pointer.
- */
- void gl_ColorMat3fv( GLcontext *ctx, const GLfloat *c )
- {
- GLfloat color[4];
- ctx->Current.ByteColor[0] = CLAMP(c[0], 0.0F, 1.0F) * ctx->Visual->RedScale;
- ctx->Current.ByteColor[1] = CLAMP(c[1], 0.0F, 1.0F) * ctx->Visual->GreenScale;
- ctx->Current.ByteColor[2] = CLAMP(c[2], 0.0F, 1.0F) * ctx->Visual->BlueScale;
- ctx->Current.ByteColor[3] = ctx->Visual->AlphaScale;
- /* update material */
- ASSERT( ctx->Light.ColorMaterialEnabled );
- ASSIGN_4V( color, c[0], c[1], c[2], 1.0F );
- gl_set_material( ctx, ctx->Light.ColorMaterialBitmask, color );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * glColor() which modifies material(s).
- * Caller: context->API.Color4f pointer.
- */
- void gl_ColorMat4f( GLcontext *ctx,
- GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha )
- {
- GLfloat color[4];
- ctx->Current.ByteColor[0] = CLAMP(red , 0.0F, 1.0F) * ctx->Visual->RedScale;
- ctx->Current.ByteColor[1] = CLAMP(green, 0.0F, 1.0F) * ctx->Visual->GreenScale;
- ctx->Current.ByteColor[2] = CLAMP(blue , 0.0F, 1.0F) * ctx->Visual->BlueScale;
- ctx->Current.ByteColor[3] = CLAMP(alpha, 0.0F, 1.0F) * ctx->Visual->AlphaScale;
- /* update material */
- ASSERT( ctx->Light.ColorMaterialEnabled );
- ASSIGN_4V( color, red, green, blue, alpha );
- gl_set_material( ctx, ctx->Light.ColorMaterialBitmask, color );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * glColor() which modifies material(s).
- * Caller: context->API.Color4fv pointer.
- */
- void gl_ColorMat4fv( GLcontext *ctx, const GLfloat *c )
- {
- GLfloat color[4];
- ctx->Current.ByteColor[0] = CLAMP(c[0], 0.0F, 1.0F) * ctx->Visual->RedScale;
- ctx->Current.ByteColor[1] = CLAMP(c[1], 0.0F, 1.0F) * ctx->Visual->GreenScale;
- ctx->Current.ByteColor[2] = CLAMP(c[2], 0.0F, 1.0F) * ctx->Visual->BlueScale;
- ctx->Current.ByteColor[3] = CLAMP(c[3], 0.0F, 1.0F) * ctx->Visual->AlphaScale;
- /* update material */
- ASSERT( ctx->Light.ColorMaterialEnabled );
- ASSIGN_4V( color, c[0], c[1], c[2], c[3] );
- gl_set_material( ctx, ctx->Light.ColorMaterialBitmask, color );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * glColor which modifies material(s).
- * Caller: context->API.Color4ub pointer.
- */
- void gl_ColorMat4ub( GLcontext *ctx,
- GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha )
- {
- GLfloat color[4];
- if (ctx->Visual->EightBitColor) {
- ASSIGN_4V( ctx->Current.ByteColor, red, green, blue, alpha );
- }
- else {
- ctx->Current.ByteColor[0] = red * ctx->Visual->RedScale * (1.0F/255.0F);
- ctx->Current.ByteColor[1] = green * ctx->Visual->GreenScale * (1.0F/255.0F);
- ctx->Current.ByteColor[2] = blue * ctx->Visual->BlueScale * (1.0F/255.0F);
- ctx->Current.ByteColor[3] = alpha * ctx->Visual->AlphaScale * (1.0F/255.0F);
- }
- /* update material */
- ASSERT( ctx->Light.ColorMaterialEnabled );
- color[0] = red * (1.0F/255.0F);
- color[1] = green * (1.0F/255.0F);
- color[2] = blue * (1.0F/255.0F);
- color[3] = alpha * (1.0F/255.0F);
- gl_set_material( ctx, ctx->Light.ColorMaterialBitmask, color );
- ctx->VB->MonoColor = GL_FALSE;
- }
-
-
- /*
- * glColor which modifies material(s).
- * Caller: context->API.Color4ub pointer.
- */
- void gl_ColorMat4ubv( GLcontext *ctx, const GLubyte *c )
- {
- gl_ColorMat4ub( ctx, c[0], c[1], c[2], c[3] );
- }
-
-
-
- /**********************************************************************/
- /****** glEdgeFlag functions *****/
- /**********************************************************************/
-
- /*
- * Caller: context->API.EdgeFlag pointer.
- */
- void gl_EdgeFlag( GLcontext *ctx, GLboolean flag )
- {
- ctx->Current.EdgeFlag = flag;
- }
-
-
-
- /**********************************************************************/
- /***** glVertex functions *****/
- /**********************************************************************/
-
- /*
- * Used when in feedback mode.
- * Caller: context->API.Vertex4f pointer.
- */
- static void vertex4f_feedback( GLcontext *ctx,
- GLfloat x, GLfloat y, GLfloat z, GLfloat w )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- /* vertex */
- ASSIGN_4V( VB->Obj[count], x, y, z, w );
-
- /* color */
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
-
- /* index */
- VB->Findex[count] = ctx->Current.Index;
-
- /* normal */
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
-
- /* texcoord */
- COPY_4V( VB->TexCoord[count], ctx->Current.TexCoord );
-
- /* edgeflag */
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- static void vertex3f_feedback( GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z )
- {
- vertex4f_feedback(ctx, x, y, z, 1.0F);
- }
-
-
- static void vertex2f_feedback( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- vertex4f_feedback(ctx, x, y, 0.0F, 1.0F);
- }
-
-
- static void vertex3fv_feedback( GLcontext *ctx, const GLfloat v[3] )
- {
- vertex4f_feedback(ctx, v[0], v[1], v[2], 1.0F);
- }
-
-
-
- /*
- * Only one glVertex4 function since it's not too popular.
- * Caller: context->API.Vertex4f pointer.
- */
- static void vertex4( GLcontext *ctx,
- GLfloat x, GLfloat y, GLfloat z, GLfloat w )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_4V( VB->Obj[count], x, y, z, w );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- COPY_4V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
- VB->VertexSizeMask = VERTEX4_BIT;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
-
- /*
- * XYZ vertex, RGB color, normal, ST texture coords.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3f_normal_color_tex2( GLcontext *ctx,
- GLfloat x, GLfloat y, GLfloat z )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, z );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- COPY_2V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, RGB color, normal, STRQ texture coords.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3f_normal_color_tex4( GLcontext *ctx,
- GLfloat x, GLfloat y, GLfloat z )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, z );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- COPY_4V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, normal.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3f_normal( GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, z );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, ST texture coords.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3f_color_tex2( GLcontext *ctx,
- GLfloat x, GLfloat y, GLfloat z )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, z );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_2V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, STRQ texture coords.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3f_color_tex4( GLcontext *ctx,
- GLfloat x, GLfloat y, GLfloat z )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, z );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_4V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, RGB color.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3f_color( GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, z );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, color index.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3f_index( GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, z );
- VB->Findex[count] = ctx->Current.Index;
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
-
- /*
- * XY vertex, RGB color, normal, ST texture coords.
- * Caller: context->API.Vertex2f pointer.
- */
- static void vertex2f_normal_color_tex2( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, 0.0F );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- COPY_2V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XY vertex, RGB color, normal, STRQ texture coords.
- * Caller: context->API.Vertex2f pointer.
- */
- static void vertex2f_normal_color_tex4( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, 0.0F );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- COPY_4V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XY vertex, normal.
- * Caller: context->API.Vertex2f pointer.
- */
- static void vertex2f_normal( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, 0.0F );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XY vertex, ST texture coords.
- * Caller: context->API.Vertex2f pointer.
- */
- static void vertex2f_color_tex2( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, 0.0F );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_2V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XY vertex, STRQ texture coords.
- * Caller: context->API.Vertex2f pointer.
- */
- static void vertex2f_color_tex4( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, 0.0F );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_4V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XY vertex, RGB color.
- * Caller: context->API.Vertex2f pointer.
- */
- static void vertex2f_color( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, 0.0F );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XY vertex, color index.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex2f_index( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- ASSIGN_3V( VB->Obj[count], x, y, 0.0F );
- VB->Findex[count] = ctx->Current.Index;
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
-
-
- /*
- * XYZ vertex, RGB color, normal, ST texture coords.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3fv_normal_color_tex2( GLcontext *ctx, const GLfloat v[3] )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- COPY_3V( VB->Obj[count], v );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- COPY_2V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, RGB color, normal, STRQ texture coords.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3fv_normal_color_tex4( GLcontext *ctx, const GLfloat v[3] )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- COPY_3V( VB->Obj[count], v );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- COPY_4V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, normal.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3fv_normal( GLcontext *ctx, const GLfloat v[3] )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- COPY_3V( VB->Obj[count], v );
- COPY_3V( VB->Normal[count], ctx->Current.Normal );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, ST texture coords.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3fv_color_tex2( GLcontext *ctx, const GLfloat v[3] )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- COPY_3V( VB->Obj[count], v );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_2V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, STRQ texture coords.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3fv_color_tex4( GLcontext *ctx, const GLfloat v[3] )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- COPY_3V( VB->Obj[count], v );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- COPY_4V( VB->TexCoord[count], ctx->Current.TexCoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, RGB color.
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3fv_color( GLcontext *ctx, const GLfloat v[3] )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- COPY_3V( VB->Obj[count], v );
- COPY_4UBV( VB->Fcolor[count], ctx->Current.ByteColor );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
- /*
- * XYZ vertex, Color index
- * Caller: context->API.Vertex3f pointer.
- */
- static void vertex3fv_index( GLcontext *ctx, const GLfloat v[3] )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count;
-
- COPY_3V( VB->Obj[count], v );
- VB->Findex[count] = ctx->Current.Index;
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
-
- /*
- * Called when outside glBegin/glEnd, raises an error.
- * Caller: context->API.Vertex4f pointer.
- */
- void gl_vertex4f_nop( GLcontext *ctx,
- GLfloat x, GLfloat y, GLfloat z, GLfloat w )
- {
- gl_error( ctx, GL_INVALID_OPERATION, "glVertex4" );
- }
-
- void gl_vertex3f_nop( GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z )
- {
- gl_error( ctx, GL_INVALID_OPERATION, "glVertex3" );
- }
-
- void gl_vertex2f_nop( GLcontext *ctx, GLfloat x, GLfloat y )
- {
- gl_error( ctx, GL_INVALID_OPERATION, "glVertex2" );
- }
-
- void gl_vertex3fv_nop( GLcontext *ctx, const GLfloat v[3] )
- {
- gl_error( ctx, GL_INVALID_OPERATION, "glVertex3v" );
- }
-
-
-
-
- /**********************************************************************/
- /****** glTexCoord functions *****/
- /**********************************************************************/
-
- /*
- * Caller: context->API.TexCoord2f pointer.
- */
- void gl_TexCoord2f( GLcontext *ctx, GLfloat s, GLfloat t )
- {
- ctx->Current.TexCoord[0] = s;
- ctx->Current.TexCoord[1] = t;
- }
-
-
- /*
- * Caller: context->API.TexCoord2f pointer.
- * This version of glTexCoord2 is called if glTexCoord[34] was a predecessor.
- */
- void gl_TexCoord2f4( GLcontext *ctx, GLfloat s, GLfloat t )
- {
- ctx->Current.TexCoord[0] = s;
- ctx->Current.TexCoord[1] = t;
- ctx->Current.TexCoord[2] = 0.0F;
- ctx->Current.TexCoord[3] = 1.0F;
- }
-
-
- /*
- * Caller: context->API.TexCoord4f pointer.
- */
- void gl_TexCoord4f( GLcontext *ctx, GLfloat s, GLfloat t, GLfloat r, GLfloat q)
- {
- ctx->Current.TexCoord[0] = s;
- ctx->Current.TexCoord[1] = t;
- ctx->Current.TexCoord[2] = r;
- ctx->Current.TexCoord[3] = q;
- if (ctx->VB->TexCoordSize==2) {
- /* Have to switch to 4-component texture mode now */
- ctx->VB->TexCoordSize = 4;
- gl_set_vertex_function( ctx );
- ctx->Exec.TexCoord2f = ctx->API.TexCoord2f = gl_TexCoord2f4;
- }
- }
-
-
-
-
- /*
- * This function examines the current GL state and sets the
- * ctx->Exec.Vertex[34]f pointers to point at the appropriate vertex
- * processing functions.
- */
- void gl_set_vertex_function( GLcontext *ctx )
- {
- if (ctx->RenderMode==GL_FEEDBACK) {
- ctx->Exec.Vertex4f = vertex4f_feedback;
- ctx->Exec.Vertex3f = vertex3f_feedback;
- ctx->Exec.Vertex2f = vertex2f_feedback;
- ctx->Exec.Vertex3fv = vertex3fv_feedback;
- }
- else {
- ctx->Exec.Vertex4f = vertex4;
- if (ctx->Visual->RGBAflag) {
- if (ctx->NeedNormals) {
- /* lighting enabled, need normal vectors */
- if (ctx->Texture.Enabled) {
- if (ctx->VB->TexCoordSize==2) {
- ctx->Exec.Vertex2f = vertex2f_normal_color_tex2;
- ctx->Exec.Vertex3f = vertex3f_normal_color_tex2;
- ctx->Exec.Vertex3fv = vertex3fv_normal_color_tex2;
- }
- else {
- ctx->Exec.Vertex2f = vertex2f_normal_color_tex4;
- ctx->Exec.Vertex3f = vertex3f_normal_color_tex4;
- ctx->Exec.Vertex3fv = vertex3fv_normal_color_tex4;
- }
- }
- else {
- ctx->Exec.Vertex2f = vertex2f_normal;
- ctx->Exec.Vertex3f = vertex3f_normal;
- ctx->Exec.Vertex3fv = vertex3fv_normal;
- }
- }
- else {
- /* not lighting, need vertex color */
- if (ctx->Texture.Enabled) {
- if (ctx->VB->TexCoordSize==2) {
- ctx->Exec.Vertex2f = vertex2f_color_tex2;
- ctx->Exec.Vertex3f = vertex3f_color_tex2;
- ctx->Exec.Vertex3fv = vertex3fv_color_tex2;
- }
- else {
- ctx->Exec.Vertex2f = vertex2f_color_tex4;
- ctx->Exec.Vertex3f = vertex3f_color_tex4;
- ctx->Exec.Vertex3fv = vertex3fv_color_tex4;
- }
- }
- else {
- ctx->Exec.Vertex2f = vertex2f_color;
- ctx->Exec.Vertex3f = vertex3f_color;
- ctx->Exec.Vertex3fv = vertex3fv_color;
- }
- }
- }
- else {
- /* color index mode */
- if (ctx->Light.Enabled) {
- ctx->Exec.Vertex2f = vertex2f_normal;
- ctx->Exec.Vertex3f = vertex3f_normal;
- ctx->Exec.Vertex3fv = vertex3fv_normal;
- }
- else {
- ctx->Exec.Vertex2f = vertex2f_index;
- ctx->Exec.Vertex3f = vertex3f_index;
- ctx->Exec.Vertex3fv = vertex3fv_index;
- }
- }
- }
-
- if (!ctx->CompileFlag) {
- ctx->API.Vertex2f = ctx->Exec.Vertex2f;
- ctx->API.Vertex3f = ctx->Exec.Vertex3f;
- ctx->API.Vertex4f = ctx->Exec.Vertex4f;
- ctx->API.Vertex3fv = ctx->Exec.Vertex3fv;
- }
- }
-
-
-
- /*
- * This function examines the current GL state and sets the
- * ctx->Exec.Color[34]* pointers to point at the appropriate vertex
- * processing functions.
- */
- void gl_set_color_function( GLcontext *ctx )
- {
- ASSERT( !INSIDE_BEGIN_END(ctx) );
-
- if (ctx->Light.ColorMaterialEnabled) {
- ctx->Exec.Color3f = gl_ColorMat3f;
- ctx->Exec.Color3fv = gl_ColorMat3fv;
- ctx->Exec.Color4f = gl_ColorMat4f;
- ctx->Exec.Color4fv = gl_ColorMat4fv;
- ctx->Exec.Color4ub = gl_ColorMat4ub;
- ctx->Exec.Color4ubv = gl_ColorMat4ubv;
- }
- else {
- ctx->Exec.Color3f = gl_Color3f;
- ctx->Exec.Color3fv = gl_Color3fv;
- ctx->Exec.Color4f = gl_Color4f;
- ctx->Exec.Color4fv = gl_Color4fv;
- ctx->Exec.Color4ub
- = ctx->Visual->EightBitColor ? (void(*)(GLcontext *,GLubyte, GLubyte, GLubyte, GLubyte))gl_Color4ub8bit : (void(*)(GLcontext *,GLubyte, GLubyte, GLubyte, GLubyte))gl_Color4ub;
- ctx->Exec.Color4ubv
- = ctx->Visual->EightBitColor ? (void(*)(GLcontext *, const GLubyte *))gl_Color4ubv8bit : (void(*)(GLcontext *, const GLubyte *))gl_Color4ubv;
- }
- if (!ctx->CompileFlag) {
- ctx->API.Color3f = ctx->Exec.Color3f;
- ctx->API.Color3fv = ctx->Exec.Color3fv;
- ctx->API.Color4f = ctx->Exec.Color4f;
- ctx->API.Color4fv = ctx->Exec.Color4fv;
- ctx->API.Color4ub = ctx->Exec.Color4ub;
- ctx->API.Color4ubv = ctx->Exec.Color4ubv;
- }
- }
-
-
-
- /**********************************************************************/
- /***** Evaluator vertices *****/
- /**********************************************************************/
-
-
- /*
- * Process a vertex produced by an evaluator.
- * Caller: eval.c
- * Input: vertex - the X,Y,Z,W vertex
- * normal - normal vector
- * color - 4 integer color components
- * index - color index
- * texcoord - texture coordinate
- */
- void gl_eval_vertex( GLcontext *ctx,
- const GLfloat vertex[4], const GLfloat normal[3],
- const GLubyte color[4],
- GLuint index,
- const GLfloat texcoord[4] )
- {
- struct vertex_buffer *VB = ctx->VB;
- GLuint count = VB->Count; /* copy to local var to encourage optimization */
-
- VB->VertexSizeMask = VERTEX4_BIT;
- VB->MonoNormal = GL_FALSE;
- COPY_4V( VB->Obj[count], vertex );
- COPY_3V( VB->Normal[count], normal );
- COPY_4UBV( VB->Fcolor[count], color );
-
- #ifdef GL_VERSION_1_1
- if (ctx->Light.ColorMaterialEnabled
- && (ctx->Eval.Map1Color4 || ctx->Eval.Map2Color4)) {
- GLfloat fcolor[4];
- fcolor[0] = color[0] * ctx->Visual->InvRedScale;
- fcolor[1] = color[1] * ctx->Visual->InvGreenScale;
- fcolor[2] = color[2] * ctx->Visual->InvBlueScale;
- fcolor[3] = color[3] * ctx->Visual->InvAlphaScale;
- gl_set_material( ctx, ctx->Light.ColorMaterialBitmask, fcolor );
- }
- #endif
- VB->Findex[count] = index;
- COPY_4V( VB->TexCoord[count], texcoord );
- VB->Edgeflag[count] = ctx->Current.EdgeFlag;
-
- count++;
- VB->Count = count;
- if (count==VB_MAX) {
- gl_transform_vb_part1( ctx, GL_FALSE );
- }
- }
-
-
-
-
-
- /**********************************************************************/
- /***** glBegin / glEnd *****/
- /**********************************************************************/
-
-
- #ifdef PROFILE
- static GLdouble begin_time;
- #endif
-
-
- void gl_Begin( GLcontext *ctx, GLenum p )
- {
- struct vertex_buffer *VB = ctx->VB;
- struct pixel_buffer *PB = ctx->PB;
- #ifdef PROFILE
- begin_time = gl_time();
- #endif
-
- if (INSIDE_BEGIN_END(ctx)) {
- gl_error( ctx, GL_INVALID_OPERATION, "glBegin" );
- return;
- }
- if (ctx->NewModelViewMatrix) {
- gl_analyze_modelview_matrix(ctx);
- }
- if (ctx->NewProjectionMatrix) {
- gl_analyze_projection_matrix(ctx);
- }
- if (ctx->NewState) {
- gl_update_state(ctx);
- }
- else if (ctx->Exec.Vertex4f==(void (*)( GLcontext *, GLfloat, GLfloat, GLfloat, GLfloat ))gl_vertex3f_nop) {
- gl_set_vertex_function(ctx);
- }
-
- if (ctx->Driver.Begin) {
- (*ctx->Driver.Begin)( ctx, p );
- }
-
- ctx->Primitive = p;
- VB->Start = VB->Count = 0;
-
- VB->MonoColor = ctx->MonoPixels;
- VB->MonoNormal = GL_TRUE;
- if (VB->MonoColor) {
- /* All pixels generated are likely to be the same color so have
- * the device driver set the "monocolor" now.
- */
- if (ctx->Visual->RGBAflag) {
- GLubyte r = ctx->Current.ByteColor[0];
- GLubyte g = ctx->Current.ByteColor[1];
- GLubyte b = ctx->Current.ByteColor[2];
- GLubyte a = ctx->Current.ByteColor[3];
- (*ctx->Driver.Color)( ctx, r, g, b, a );
- }
- else {
- (*ctx->Driver.Index)( ctx, ctx->Current.Index );
- }
- }
-
- /* By default use front color/index. Two-sided lighting may override. */
- VB->Color = VB->Fcolor;
- VB->Index = VB->Findex;
-
- switch (ctx->Primitive) {
- case GL_POINTS:
- ctx->LightTwoSide = GL_FALSE;
- PB_INIT( PB, GL_POINT );
- break;
- case GL_LINES:
- case GL_LINE_STRIP:
- case GL_LINE_LOOP:
- ctx->LightTwoSide = GL_FALSE;
- ctx->StippleCounter = 0;
- PB_INIT( PB, GL_LINE );
- break;
- case GL_TRIANGLES:
- case GL_TRIANGLE_STRIP:
- case GL_TRIANGLE_FAN:
- case GL_QUADS:
- case GL_QUAD_STRIP:
- case GL_POLYGON:
- ctx->LightTwoSide = ctx->Light.Enabled && ctx->Light.Model.TwoSide;
- PB_INIT( PB, GL_POLYGON );
- break;
- default:
- gl_error( ctx, GL_INVALID_ENUM, "glBegin" );
- ctx->Primitive = GL_BITMAP;
- }
- }
-
-
-
- void gl_End( GLcontext *ctx )
- {
- struct pixel_buffer *PB = ctx->PB;
- struct vertex_buffer *VB = ctx->VB;
-
- if (ctx->Primitive==GL_BITMAP) {
- /* glEnd without glBegin */
- gl_error( ctx, GL_INVALID_OPERATION, "glEnd" );
- return;
- }
-
- if (VB->Count > VB->Start) {
- gl_transform_vb_part1( ctx, GL_TRUE );
- }
- if (PB->count>0) {
- gl_flush_pb(ctx);
- }
-
- if (ctx->Driver.End) {
- (*ctx->Driver.End)(ctx);
- }
-
- PB->primitive = ctx->Primitive = GL_BITMAP; /* Default mode */
-
- #ifdef PROFILE
- ctx->BeginEndTime += gl_time() - begin_time;
- ctx->BeginEndCount++;
- #endif
- }
-
-