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-rw-r--r--xc/extras/Mesa/src/fog_tmp.h449
1 files changed, 0 insertions, 449 deletions
diff --git a/xc/extras/Mesa/src/fog_tmp.h b/xc/extras/Mesa/src/fog_tmp.h
deleted file mode 100644
index cec9c0d91..000000000
--- a/xc/extras/Mesa/src/fog_tmp.h
+++ /dev/null
@@ -1,449 +0,0 @@
-
-/*
- * Mesa 3-D graphics library
- * Version: 3.4
- *
- * 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.
- */
-
-/* For 3.2: Add a helper function for drivers to do fog coordinate
- * calculation. Not called from standard pipelines.
- */
-static void TAG(make_fog_coord)( struct vertex_buffer *VB,
- const GLvector4f *eye,
- GLubyte flag)
-{
- const GLcontext *ctx = VB->ctx;
- GLfloat end = ctx->Fog.End;
- GLubyte *cullmask = VB->CullMask + VB->Start;
- GLfloat *v = eye->start;
- GLuint stride = eye->stride;
- GLuint n = VB->Count - VB->Start;
- GLubyte (*out)[4];
- GLfloat d;
- GLuint i;
-
- (void) cullmask;
- (void) flag;
-
- /* Use specular alpha (front side) as fog coordinate.
- */
- out = VB->Spec[0] + VB->Start;
-
- if (VB->EyePtr->size > 2) {
- switch (ctx->Fog.Mode) {
- case GL_LINEAR:
- d = 1.0F / (ctx->Fog.End - ctx->Fog.Start);
- for ( i = 0 ; i < n ; i++, STRIDE_F(v, stride)) {
- CULLCHECK {
- GLfloat f = (end - ABSF(v[2])) * d;
- FLOAT_COLOR_TO_UBYTE_COLOR(out[i][3], f);
- }
- }
- break;
- case GL_EXP:
- d = -ctx->Fog.Density;
- for ( i = 0 ; i < n ; i++, STRIDE_F(v,stride)) {
- CULLCHECK {
- GLfloat f = exp( d*ABSF(v[2]) ); /* already clamped */
- FLOAT_COLOR_TO_UBYTE_COLOR(out[i][3], f);
- }
- }
- break;
- case GL_EXP2:
- d = -(ctx->Fog.Density*ctx->Fog.Density);
- for ( i = 0 ; i < n ; i++, STRIDE_F(v, stride)) {
- CULLCHECK {
- GLfloat z = v[2];
- GLfloat f = exp( d*z*z ); /* already clamped */
- FLOAT_COLOR_TO_UBYTE_COLOR(out[i][3], f);
- }
- }
- break;
- default:
- gl_problem(ctx, "Bad fog mode in make_fog_coord");
- return;
- }
- }
- else
- {
- GLubyte r = 255;
-
- if (ctx->Fog.Mode == GL_LINEAR) {
- GLfloat f = 1.0 - ctx->Fog.End / (ctx->Fog.End - ctx->Fog.Start);
- CLAMP_FLOAT_COLOR( f );
- FLOAT_COLOR_TO_UBYTE_COLOR(r, f);
- }
-
- for (i = 0 ; i < n ; i++)
- out[i][3] = r;
- }
-}
-
-
-
-
-
-#if 0
-/* TODO : use fog coordinates as intermediate step in all fog
- * calculations.
- */
-
-static void TAG(fog_rgba_vertices)( struct vertex_buffer *VB,
- GLuint side,
- GLubyte flag)
-{
- const GLcontext *ctx = VB->ctx;
- const GLubyte rFog = ctx->Fog.ByteColor[0];
- const GLubyte gFog = ctx->Fog.ByteColor[1];
- const GLubyte bFog = ctx->Fog.ByteColor[2];
- GLfloat end = ctx->Fog.End;
- GLubyte *cullmask = VB->CullMask + VB->Start;
- GLubyte (*fcoord)[4] = VB->SpecPtr[0]->start;
- GLuint stride = VB->SpecPtr[0]->stride;
- GLuint n = VB->Count - VB->Start;
- GLubyte *in;
- GLuint in_stride;
- GLubyte (*out)[4];
- GLfloat d,t;
- GLuint i;
-
- (void) cullmask;
- (void) flag;
-
- /* Get correct source and destination for fogged colors.
- */
- in_stride = VB->Color[side]->stride;
- in = VB->Color[side]->start;
- VB->Color[side] = VB->FoggedColor[side];
- VB->ColorPtr = VB->Color[0];
- out = (GLubyte (*)[4])VB->Color[side]->start;
-
- FLOAT_COLOR_TO_UBYTE_COLOR( rFog, ctx->Fog.Color[0] );
-
- for ( i = 0 ; i < n ; i++, STRIDE_F(spec, sp_stride), in += in_stride) {
- CULLCHECK {
- GLint fc = (GLint) spec[3], ifc = 255 - fc;
-
- out[i][0] = (fc * in[0] + ifc * rFog) >> 8;
- out[i][1] = (fc * in[1] + ifc * gFog) >> 8;
- out[i][2] = (fc * in[2] + ifc * bFog) >> 8;
- }
- }
-}
-
-
-
-static void TAG(fog_ci_vertices)( struct vertex_buffer *VB,
- GLuint side,
- GLubyte flag )
-{
- GLcontext *ctx = VB->ctx;
-
- GLubyte *cullmask = VB->CullMask + VB->Start;
-
- GLfloat *v = VB->EyePtr->start;
- GLuint stride = VB->EyePtr->stride;
- GLuint vertex_size = VB->EyePtr->size;
- GLuint n = VB->EyePtr->count;
-
- GLuint *in;
- GLuint in_stride;
- GLuint *out;
- GLuint i;
-
- (void) flag;
- (void) cullmask;
-
-
- in = VB->Index[side]->start;
- in_stride = VB->Index[side]->stride;
- VB->IndexPtr = VB->FoggedIndex[side];
- out = VB->IndexPtr->start;
-
- /* NOTE: the use of casts generates better/faster code for MIPS */
- for ( i = 0; i < n ; i++, STRIDE_F(v,stride), STRIDE_UI(in,in_stride))
- CULLCHECK {
- GLfloat f = (fogend - ABSF(v[2])) * d;
- f = CLAMP( f, 0.0, 1.0 );
- *out = (GLint) ((GLfloat)(GLint) *in + (1.0F-f) * fogindex);
- }
-}
-
-#endif
-
-
-
-
-static void TAG(fog_rgba_vertices)( struct vertex_buffer *VB,
- GLuint side,
- GLubyte flag)
-{
- const GLcontext *ctx = VB->ctx;
- GLfloat rFog = ctx->Fog.Color[0];
- GLfloat gFog = ctx->Fog.Color[1];
- GLfloat bFog = ctx->Fog.Color[2];
- GLfloat end = ctx->Fog.End;
- GLubyte *cullmask = VB->CullMask + VB->Start;
- GLfloat *v = VB->EyePtr->start;
- GLuint stride = VB->EyePtr->stride;
- GLuint n = VB->EyePtr->count;
- GLubyte *in;
- GLuint in_stride;
- GLubyte (*out)[4];
- GLfloat d,t;
- GLuint i;
-
- (void) cullmask;
- (void) flag;
-
- /* Get correct source and destination for fogged colors.
- */
- in_stride = VB->Color[side]->stride;
- in = VB->Color[side]->start;
- VB->Color[side] = VB->FoggedColor[side];
- VB->ColorPtr = VB->Color[0];
- out = (GLubyte (*)[4])VB->Color[side]->start;
-
- if (VB->EyePtr->size > 2) {
- switch (ctx->Fog.Mode) {
- case GL_LINEAR:
- d = 1.0F / (ctx->Fog.End - ctx->Fog.Start);
- for ( i = 0 ; i < n ; i++, STRIDE_F(v, stride), in += in_stride) {
- CULLCHECK {
- GLfloat f = (end - ABSF(v[2])) * d;
- if (f >= 1.0) {
- out[i][0] = in[0];
- out[i][1] = in[1];
- out[i][2] = in[2];
- }
- else if (f <= 0.0) {
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][0], rFog);
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][1], gFog);
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][2], bFog);
- }
- else {
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[0]) + (1.0F-f)*rFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][0], t);
-
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[1]) + (1.0F-f)*gFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][1], t);
-
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[2]) + (1.0F-f)*bFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][2], t);
-
- }
- out[i][3] = in[3];
- }
- }
- break;
- case GL_EXP:
- d = -ctx->Fog.Density;
- for ( i = 0 ; i < n ; i++, STRIDE_F(v,stride), in += in_stride) {
- CULLCHECK {
- GLfloat f = exp( d*ABSF(v[2]) ); /* already clamped */
-
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[0]) + (1.0F-f)*rFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][0], t);
-
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[1]) + (1.0F-f)*gFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][1], t);
-
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[2]) + (1.0F-f)*bFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][2], t);
- }
- out[i][3] = in[3];
- }
- break;
- case GL_EXP2:
- d = -(ctx->Fog.Density*ctx->Fog.Density);
- for ( i = 0 ; i < n ; i++, STRIDE_F(v, stride), in += in_stride) {
- CULLCHECK {
- GLfloat z = v[2];
- GLfloat f = exp( d*z*z ); /* already clamped */
-
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[0]) + (1.0F-f)*rFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][0], t);
-
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[1]) + (1.0F-f)*gFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][1], t);
-
- t = f * UBYTE_COLOR_TO_FLOAT_COLOR(in[2]) + (1.0F-f)*bFog;
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(out[i][2], t);
- }
- out[i][3] = in[3];
- }
- break;
- default:
- gl_problem(ctx, "Bad fog mode in gl_fog_rgba_vertices");
- return;
- }
- }
- else {
- /* All vertex Z coordinates are zero */
- if (ctx->Fog.Mode == GL_LINEAR) {
- /* 2-vector vertices */
- GLubyte r,g,b;
- GLfloat f = ctx->Fog.End * (ctx->Fog.End - ctx->Fog.Start);
- CLAMP_FLOAT_COLOR( f );
- f = 1.0 - f;
- rFog *= f;
- bFog *= f;
- gFog *= f;
-
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(r, rFog);
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(g, gFog);
- CLAMPED_FLOAT_COLOR_TO_UBYTE_COLOR(b, bFog);
-
- for (i = 0 ; i < n ; i++) {
- /* CULLCHECK */ {
- out[i][0] = r;
- out[i][1] = g;
- out[i][2] = b;
- }
- }
- }
- else {
- /* EXP or EXP2 mode */
- /* f = exp(d*z*z) or f = exp(d*|z|) is one. Copy in color to out */
- for ( i = 0 ; i < n ; i++, STRIDE_F(v,stride), in += in_stride) {
- /* CULLCHECK */ {
- out[i][0] = in[0];
- out[i][1] = in[1];
- out[i][2] = in[2];
- }
- }
- }
- }
-}
-
-
-
-/*
- * Compute the fogged color indexes for an array of vertices.
- * Input: n - number of vertices
- * v - array of vertices
- * In/Out: indx - array of vertex color indexes
- */
-static void TAG(fog_ci_vertices)( struct vertex_buffer *VB,
- GLuint side,
- GLubyte flag )
-{
- GLcontext *ctx = VB->ctx;
-
- GLubyte *cullmask = VB->CullMask + VB->Start;
-
- GLfloat *v = VB->EyePtr->start;
- GLuint stride = VB->EyePtr->stride;
- GLuint vertex_size = VB->EyePtr->size;
- GLuint n = VB->EyePtr->count;
-
- GLuint *in;
- GLuint in_stride;
- GLuint *out;
- GLuint i;
-
- (void) flag;
- (void) cullmask;
-
- in = VB->Index[side]->start;
- in_stride = VB->Index[side]->stride;
- VB->Index[side] = VB->FoggedIndex[side];
- VB->IndexPtr = VB->Index[0];
- out = (GLuint *)VB->Index[side]->start;
-
- /* NOTE: the extensive use of casts generates better/faster code for MIPS */
- if (vertex_size > 2) {
- switch (ctx->Fog.Mode) {
- case GL_LINEAR:
- {
- GLfloat d = 1.0F / (ctx->Fog.End - ctx->Fog.Start);
- GLfloat fogindex = ctx->Fog.Index;
- GLfloat fogend = ctx->Fog.End;
-
- for ( i = 0; i < n ; i++, STRIDE_F(v,stride), STRIDE_UI(in,in_stride))
- {
- CULLCHECK {
- GLfloat f = (fogend - ABSF(v[2])) * d;
- f = CLAMP( f, 0.0, 1.0 );
- out[i] = (GLint) ((GLfloat)(GLint) *in + (1.0F-f) * fogindex);
- }
- }
- break;
- }
- case GL_EXP:
- {
- GLfloat d = -ctx->Fog.Density;
- GLfloat fogindex = ctx->Fog.Index;
- for ( i = 0; i < n ; i++, STRIDE_F(v,stride), STRIDE_UI(in,in_stride))
- {
- CULLCHECK {
- GLfloat f = exp( d * ABSF(v[2]) );
- out[i] = (GLint) ((GLfloat)(GLint) *in + (1.0F-f) * fogindex);
- }
- }
- break;
- }
- case GL_EXP2:
- {
- GLfloat d = -(ctx->Fog.Density*ctx->Fog.Density);
- GLfloat fogindex = ctx->Fog.Index;
- for ( i = 0; i < n ; i++, STRIDE_F(v,stride),STRIDE_UI(in,in_stride))
- {
- CULLCHECK {
- GLfloat z = v[2]; /*ABSF(v[i][2]);*/
- GLfloat f = exp( d * z*z ); /* was -d ??? */
- out[i] = (GLint) ((GLfloat)(GLint) *in + (1.0F-f) * fogindex);
- }
- }
- break;
- }
- default:
- gl_problem(ctx, "Bad fog mode in gl_fog_ci_vertices");
- return;
- }
- }
- else if (ctx->Fog.Mode == GL_LINEAR) {
- GLuint fogindex;
- GLfloat f = ctx->Fog.End / (ctx->Fog.End - ctx->Fog.Start);
-
- f = 1.0 - CLAMP( f, 0.0F, 1.0F );
- fogindex = (GLuint)(f * ctx->Fog.Index);
- if (fogindex) {
- for ( i = 0; i < n ; i++, STRIDE_F(v,stride), STRIDE_UI(in,in_stride))
- {
- CULLCHECK {
- out[i] = *in + fogindex;
- }
- }
- }
- }
-}
-
-static void TAG(init_fog_tab)(void)
-{
- fog_ci_tab[IDX] = TAG(fog_ci_vertices);
- fog_rgba_tab[IDX] = TAG(fog_rgba_vertices);
- make_fog_coord_tab[IDX] = TAG(make_fog_coord);
-}
-
-#undef TAG
-#undef CULLCHECK
-#undef IDX
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