mirror of
https://github.com/dhewm/dhewm3.git
synced 2024-12-11 21:40:49 +00:00
516 lines
18 KiB
C++
516 lines
18 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
Doom 3 GPL Source Code
|
|
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
|
|
|
|
This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
|
|
|
|
Doom 3 Source Code is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Doom 3 Source Code 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
|
|
|
|
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
|
|
|
|
===========================================================================
|
|
*/
|
|
#include "../idlib/precompiled.h"
|
|
#pragma hdrstop
|
|
|
|
#include "tr_local.h"
|
|
|
|
/*
|
|
|
|
There are not enough vertex program texture coordinate outputs
|
|
to have unique texture coordinates for bump, specular, and diffuse,
|
|
so diffuse and specular are assumed to be the same mapping.
|
|
|
|
To handle properly, those cases with different diffuse and specular
|
|
mapping will need to be run as two passes.
|
|
|
|
*/
|
|
|
|
// changed from 1 to 255 to not conflict with ARB2 program names
|
|
static int FPROG_FAST_PATH = 255;
|
|
|
|
typedef struct {
|
|
GLint numFragmentRegisters; // 6
|
|
GLint numFragmentConstants; // 8
|
|
GLint numPasses; // 2
|
|
GLint numInstructionsPerPass; // 8
|
|
GLint numInstructionsTotal; // 16
|
|
GLint colorAlphaPairing; // 1
|
|
GLint numLoopbackComponenets; // 3
|
|
GLint numInputInterpolatorComponents; // 3
|
|
} atiFragmentShaderInfo_t;
|
|
|
|
static atiFragmentShaderInfo_t fsi;
|
|
|
|
typedef struct {
|
|
// vertex shader invariants
|
|
int lightPos; // light position in object coordinates
|
|
int viewerPos; // viewer position in object coordinates
|
|
int lightProjectS; // projected light s texgen
|
|
int lightProjectT; // projected light t texgen
|
|
int lightProjectQ; // projected light q texgen
|
|
int lightFalloffS; // projected light falloff s texgen
|
|
int bumpTransformS; // bump TEX0 S transformation
|
|
int bumpTransformT; // bump TEX0 T transformation
|
|
int colorTransformS; // diffuse/specular texture matrix
|
|
int colorTransformT; // diffuse/specular texture matrix
|
|
|
|
// vertex shader variants
|
|
int texCoords;
|
|
int vertexColors;
|
|
int normals;
|
|
int tangents;
|
|
int biTangents;
|
|
|
|
} atiVertexShaderInfo_t;
|
|
|
|
static atiVertexShaderInfo_t vsi;
|
|
|
|
/*
|
|
===================
|
|
RB_R200_ARB_DrawInteraction
|
|
|
|
===================
|
|
*/
|
|
static void RB_R200_ARB_DrawInteraction( const drawInteraction_t *din ) {
|
|
// check for the case we can't handle in a single pass (we could calculate this at shader parse time to optimize)
|
|
if ( din->diffuseImage != globalImages->blackImage && din->specularImage != globalImages->blackImage
|
|
&& memcmp( din->specularMatrix, din->diffuseMatrix, sizeof( din->diffuseMatrix ) ) ) {
|
|
// common->Printf( "Note: Shader %s drawn as two pass on R200\n", din->surf->shader->getName() );
|
|
|
|
// draw the specular as a separate pass with a black diffuse map
|
|
drawInteraction_t d;
|
|
d = *din;
|
|
d.diffuseImage = globalImages->blackImage;
|
|
memcpy( d.diffuseMatrix, d.specularMatrix, sizeof( d.diffuseMatrix ) );
|
|
RB_R200_ARB_DrawInteraction( &d );
|
|
|
|
// now fall through and draw the diffuse pass with a black specular map
|
|
d = *din;
|
|
din = &d;
|
|
d.specularImage = globalImages->blackImage;
|
|
}
|
|
|
|
// load all the vertex program parameters
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_ORIGIN, din->localLightOrigin.ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_VIEW_ORIGIN, din->localViewOrigin.ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_S, din->lightProjection[0].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_T, din->lightProjection[1].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_Q, din->lightProjection[2].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_FALLOFF_S, din->lightProjection[3].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_BUMP_MATRIX_S, din->bumpMatrix[0].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_BUMP_MATRIX_T, din->bumpMatrix[1].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_DIFFUSE_MATRIX_S, din->diffuseMatrix[0].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_DIFFUSE_MATRIX_T, din->diffuseMatrix[1].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_SPECULAR_MATRIX_S, din->diffuseMatrix[0].ToFloatPtr() );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_SPECULAR_MATRIX_T, din->diffuseMatrix[1].ToFloatPtr() );
|
|
|
|
const srfTriangles_t *tri = din->surf->geo;
|
|
idDrawVert *ac = (idDrawVert *)vertexCache.Position( tri->ambientCache );
|
|
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->xyz );
|
|
|
|
static const float zero[4] = { 0, 0, 0, 0 };
|
|
static const float one[4] = { 1, 1, 1, 1 };
|
|
static const float negOne[4] = { -1, -1, -1, -1 };
|
|
|
|
switch ( din->vertexColor ) {
|
|
case SVC_IGNORE:
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, zero );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, one );
|
|
break;
|
|
case SVC_MODULATE:
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, one );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, zero );
|
|
break;
|
|
case SVC_INVERSE_MODULATE:
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, negOne );
|
|
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, one );
|
|
break;
|
|
}
|
|
|
|
|
|
// texture 0 = light projection
|
|
// texture 1 = light falloff
|
|
// texture 2 = surface diffuse
|
|
// texture 3 = surface specular
|
|
// texture 4 = surface bump
|
|
// texture 5 = normalization cube map
|
|
|
|
GL_SelectTexture( 5 );
|
|
if ( din->ambientLight ) {
|
|
globalImages->ambientNormalMap->Bind();
|
|
} else {
|
|
globalImages->normalCubeMapImage->Bind();
|
|
}
|
|
|
|
GL_SelectTexture( 4 );
|
|
din->bumpImage->Bind();
|
|
|
|
GL_SelectTexture( 3 );
|
|
din->specularImage->Bind();
|
|
qglTexCoordPointer( 3, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->normal );
|
|
|
|
GL_SelectTexture( 2 );
|
|
din->diffuseImage->Bind();
|
|
qglTexCoordPointer( 3, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->tangents[1][0] );
|
|
|
|
GL_SelectTexture( 1 );
|
|
din->lightFalloffImage->Bind();
|
|
qglTexCoordPointer( 3, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->tangents[0][0] );
|
|
|
|
GL_SelectTexture( 0 );
|
|
din->lightImage->Bind();
|
|
qglTexCoordPointer( 2, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->st[0] );
|
|
|
|
qglSetFragmentShaderConstantATI( GL_CON_0_ATI, din->diffuseColor.ToFloatPtr() );
|
|
qglSetFragmentShaderConstantATI( GL_CON_1_ATI, din->specularColor.ToFloatPtr() );
|
|
|
|
if ( din->vertexColor != SVC_IGNORE ) {
|
|
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof(idDrawVert), (void *)&ac->color );
|
|
qglEnableClientState( GL_COLOR_ARRAY );
|
|
|
|
RB_DrawElementsWithCounters( tri );
|
|
|
|
qglDisableClientState( GL_COLOR_ARRAY );
|
|
qglColor4f( 1, 1, 1, 1 );
|
|
} else {
|
|
RB_DrawElementsWithCounters( tri );
|
|
}
|
|
}
|
|
|
|
/*
|
|
==================
|
|
RB_R200_ARB_CreateDrawInteractions
|
|
==================
|
|
*/
|
|
static void RB_R200_ARB_CreateDrawInteractions( const drawSurf_t *surf ) {
|
|
if ( !surf ) {
|
|
return;
|
|
}
|
|
|
|
// force a space calculation for light vectors
|
|
backEnd.currentSpace = NULL;
|
|
|
|
// set the depth test
|
|
if ( surf->material->Coverage() == MC_TRANSLUCENT /* != C_PERFORATED */ ) {
|
|
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | GLS_DEPTHFUNC_LESS );
|
|
} else {
|
|
// only draw on the alpha tested pixels that made it to the depth buffer
|
|
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | GLS_DEPTHFUNC_EQUAL );
|
|
}
|
|
|
|
// start the vertex shader
|
|
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_R200_INTERACTION );
|
|
qglEnable(GL_VERTEX_PROGRAM_ARB);
|
|
|
|
// start the fragment shader
|
|
qglBindFragmentShaderATI( FPROG_FAST_PATH );
|
|
#if defined( MACOS_X )
|
|
qglEnable( GL_TEXT_FRAGMENT_SHADER_ATI );
|
|
#else
|
|
qglEnable( GL_FRAGMENT_SHADER_ATI );
|
|
#endif
|
|
|
|
qglColor4f( 1, 1, 1, 1 );
|
|
|
|
GL_SelectTexture( 1 );
|
|
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
|
|
GL_SelectTexture( 2 );
|
|
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
|
|
GL_SelectTexture( 3 );
|
|
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
|
|
|
|
for ( ; surf ; surf=surf->nextOnLight ) {
|
|
RB_CreateSingleDrawInteractions( surf, RB_R200_ARB_DrawInteraction );
|
|
}
|
|
|
|
GL_SelectTexture( 5 );
|
|
globalImages->BindNull();
|
|
|
|
GL_SelectTexture( 4 );
|
|
globalImages->BindNull();
|
|
|
|
GL_SelectTexture( 3 );
|
|
globalImages->BindNull();
|
|
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
|
|
|
|
GL_SelectTexture( 2 );
|
|
globalImages->BindNull();
|
|
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
|
|
|
|
GL_SelectTexture( 1 );
|
|
globalImages->BindNull();
|
|
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
|
|
|
|
GL_SelectTexture( 0 );
|
|
|
|
qglDisable( GL_VERTEX_PROGRAM_ARB );
|
|
#if defined( MACOS_X )
|
|
qglDisable( GL_TEXT_FRAGMENT_SHADER_ATI );
|
|
#else
|
|
qglDisable( GL_FRAGMENT_SHADER_ATI );
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
==================
|
|
RB_R200_DrawInteractions
|
|
|
|
==================
|
|
*/
|
|
void RB_R200_DrawInteractions( void ) {
|
|
qglEnable( GL_STENCIL_TEST );
|
|
|
|
for ( viewLight_t *vLight = backEnd.viewDef->viewLights ; vLight ; vLight = vLight->next ) {
|
|
// do fogging later
|
|
if ( vLight->lightShader->IsFogLight() ) {
|
|
continue;
|
|
}
|
|
if ( vLight->lightShader->IsBlendLight() ) {
|
|
continue;
|
|
}
|
|
|
|
backEnd.vLight = vLight;
|
|
|
|
RB_LogComment( "---------- RB_RenderViewLight 0x%p ----------\n", vLight );
|
|
|
|
// clear the stencil buffer if needed
|
|
if ( vLight->globalShadows || vLight->localShadows ) {
|
|
backEnd.currentScissor = vLight->scissorRect;
|
|
if ( r_useScissor.GetBool() ) {
|
|
qglScissor( backEnd.viewDef->viewport.x1 + backEnd.currentScissor.x1,
|
|
backEnd.viewDef->viewport.y1 + backEnd.currentScissor.y1,
|
|
backEnd.currentScissor.x2 + 1 - backEnd.currentScissor.x1,
|
|
backEnd.currentScissor.y2 + 1 - backEnd.currentScissor.y1 );
|
|
}
|
|
qglClear( GL_STENCIL_BUFFER_BIT );
|
|
} else {
|
|
// no shadows, so no need to read or write the stencil buffer
|
|
// we might in theory want to use GL_ALWAYS instead of disabling
|
|
// completely, to satisfy the invarience rules
|
|
qglStencilFunc( GL_ALWAYS, 128, 255 );
|
|
}
|
|
|
|
if ( r_useShadowVertexProgram.GetBool() ) {
|
|
qglEnable( GL_VERTEX_PROGRAM_ARB );
|
|
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_STENCIL_SHADOW );
|
|
RB_StencilShadowPass( vLight->globalShadows );
|
|
|
|
RB_R200_ARB_CreateDrawInteractions( vLight->localInteractions );
|
|
|
|
qglEnable( GL_VERTEX_PROGRAM_ARB );
|
|
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_STENCIL_SHADOW );
|
|
RB_StencilShadowPass( vLight->localShadows );
|
|
|
|
RB_R200_ARB_CreateDrawInteractions( vLight->globalInteractions );
|
|
|
|
qglDisable( GL_VERTEX_PROGRAM_ARB ); // if there weren't any globalInteractions, it would have stayed on
|
|
} else {
|
|
RB_StencilShadowPass( vLight->globalShadows );
|
|
RB_R200_ARB_CreateDrawInteractions( vLight->localInteractions );
|
|
|
|
RB_StencilShadowPass( vLight->localShadows );
|
|
RB_R200_ARB_CreateDrawInteractions( vLight->globalInteractions );
|
|
}
|
|
|
|
if ( r_skipTranslucent.GetBool() ) {
|
|
continue;
|
|
}
|
|
|
|
// disable stencil testing for translucent interactions, because
|
|
// the shadow isn't calculated at their point, and the shadow
|
|
// behind them may be depth fighting with a back side, so there
|
|
// isn't any reasonable thing to do
|
|
qglStencilFunc( GL_ALWAYS, 128, 255 );
|
|
RB_R200_ARB_CreateDrawInteractions( vLight->translucentInteractions );
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
=================
|
|
R_BuildSurfaceFragmentProgram
|
|
=================
|
|
*/
|
|
static void R_BuildSurfaceFragmentProgram( int programNum ) {
|
|
qglBindFragmentShaderATI( programNum );
|
|
|
|
qglBeginFragmentShaderATI();
|
|
|
|
// texture 0 = light projection
|
|
// texture 1 = light falloff
|
|
// texture 2 = surface diffuse
|
|
// texture 3 = surface specular
|
|
// texture 4 = surface bump
|
|
// texture 5 = normalization cube map
|
|
|
|
// texcoord 0 = light projection texGen
|
|
// texcoord 1 = light falloff texGen
|
|
// texcoord 2 = bumpmap texCoords
|
|
// texcoord 3 = specular / diffuse texCoords
|
|
// texcoord 4 = halfangle vector in local tangent space
|
|
// texcoord 5 = vector to light in local tangent space
|
|
|
|
// constant 0 = diffuse modulate
|
|
// constant 1 = specular modulate
|
|
// constant 5 = internal use for 0.75 constant
|
|
|
|
qglSampleMapATI( GL_REG_0_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STQ_DQ_ATI );
|
|
qglSampleMapATI( GL_REG_1_ATI, GL_TEXTURE1_ARB, GL_SWIZZLE_STR_ATI );
|
|
qglSampleMapATI( GL_REG_4_ATI, GL_TEXTURE2_ARB, GL_SWIZZLE_STR_ATI );
|
|
qglSampleMapATI( GL_REG_5_ATI, GL_TEXTURE5_ARB, GL_SWIZZLE_STR_ATI );
|
|
|
|
// move the alpha component to the red channel to support rxgb normal map compression
|
|
if ( globalImages->image_useNormalCompression.GetInteger() == 2 ) {
|
|
qglColorFragmentOp1ATI( GL_MOV_ATI, GL_REG_4_ATI, GL_RED_BIT_ATI, GL_NONE,
|
|
GL_REG_4_ATI, GL_ALPHA, GL_NONE );
|
|
}
|
|
|
|
// light projection * light falloff
|
|
qglColorFragmentOp2ATI( GL_MUL_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_1_ATI, GL_NONE, GL_NONE );
|
|
|
|
// vectorToLight dot bumpMap
|
|
qglColorFragmentOp2ATI( GL_DOT3_ATI, GL_REG_1_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
|
|
GL_REG_4_ATI, GL_NONE, GL_2X_BIT_ATI | GL_BIAS_BIT_ATI,
|
|
GL_REG_5_ATI, GL_NONE, GL_2X_BIT_ATI | GL_BIAS_BIT_ATI );
|
|
|
|
// bump * light
|
|
qglColorFragmentOp2ATI( GL_MUL_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_1_ATI, GL_NONE, GL_NONE );
|
|
|
|
//-------------------
|
|
|
|
// carry over the incomingLight calculation
|
|
qglPassTexCoordATI( GL_REG_0_ATI, GL_REG_0_ATI, GL_SWIZZLE_STR_ATI );
|
|
|
|
// sample the diffuse surface map
|
|
qglSampleMapATI( GL_REG_2_ATI, GL_TEXTURE3_ARB, GL_SWIZZLE_STR_ATI );
|
|
|
|
// sample the specular surface map
|
|
qglSampleMapATI( GL_REG_3_ATI, GL_TEXTURE3_ARB, GL_SWIZZLE_STR_ATI );
|
|
|
|
// we will use the surface bump map again
|
|
qglPassTexCoordATI( GL_REG_4_ATI, GL_REG_4_ATI, GL_SWIZZLE_STR_ATI );
|
|
|
|
// normalize the specular halfangle
|
|
qglSampleMapATI( GL_REG_5_ATI, GL_TEXTURE4_ARB, GL_SWIZZLE_STR_ATI );
|
|
|
|
// R1 = halfangle dot surfaceNormal
|
|
qglColorFragmentOp2ATI( GL_DOT3_ATI, GL_REG_1_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
|
|
GL_REG_4_ATI, GL_NONE, GL_2X_BIT_ATI | GL_BIAS_BIT_ATI,
|
|
GL_REG_5_ATI, GL_NONE, GL_2X_BIT_ATI | GL_BIAS_BIT_ATI );
|
|
|
|
// R1 = 4 * ( R1 - 0.75 )
|
|
// subtract 0.75 and quadruple to tighten the specular spot
|
|
float data[4] = { 0.75, 0.75, 0.75, 0.75 };
|
|
qglSetFragmentShaderConstantATI( GL_CON_5_ATI, data );
|
|
qglColorFragmentOp2ATI( GL_SUB_ATI, GL_REG_1_ATI, GL_NONE, GL_4X_BIT_ATI | GL_SATURATE_BIT_ATI,
|
|
GL_REG_1_ATI, GL_NONE, GL_NONE,
|
|
GL_CON_5_ATI, GL_NONE, GL_NONE );
|
|
|
|
// R1 = R1 * R1
|
|
// sqare the stretched specular result
|
|
qglColorFragmentOp2ATI( GL_MUL_ATI, GL_REG_1_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
|
|
GL_REG_1_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_1_ATI, GL_NONE, GL_NONE );
|
|
|
|
// R1 = R1 * R3
|
|
// R1 = specular power * specular texture * 2
|
|
qglColorFragmentOp2ATI( GL_MUL_ATI, GL_REG_1_ATI, GL_NONE, GL_2X_BIT_ATI | GL_SATURATE_BIT_ATI,
|
|
GL_REG_1_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_3_ATI, GL_NONE, GL_NONE );
|
|
|
|
// R2 = R2 * CONST0
|
|
// down modulate the diffuse map
|
|
qglColorFragmentOp2ATI( GL_MUL_ATI, GL_REG_2_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
|
|
GL_REG_2_ATI, GL_NONE, GL_NONE,
|
|
GL_CON_0_ATI, GL_NONE, GL_NONE );
|
|
|
|
// R2 = R2 + R1 * CONST1
|
|
// diffuse + specular * specular color
|
|
qglColorFragmentOp3ATI( GL_MAD_ATI, GL_REG_2_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
|
|
GL_REG_1_ATI, GL_NONE, GL_NONE,
|
|
GL_CON_1_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_2_ATI, GL_NONE, GL_NONE );
|
|
|
|
// out = reflectance * incoming light
|
|
qglColorFragmentOp2ATI( GL_MUL_ATI, GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
|
|
GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_2_ATI, GL_NONE, GL_NONE );
|
|
|
|
// out * vertex color
|
|
qglColorFragmentOp2ATI( GL_MUL_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_PRIMARY_COLOR_ARB, GL_NONE, GL_NONE );
|
|
|
|
// out alpha = 0 to allow blending optimization
|
|
qglAlphaFragmentOp1ATI( GL_MOV_ATI, GL_REG_0_ATI, GL_NONE,
|
|
GL_ZERO, GL_NONE, GL_NONE );
|
|
|
|
qglEndFragmentShaderATI();
|
|
|
|
GL_CheckErrors();
|
|
}
|
|
|
|
/*
|
|
=================
|
|
R_R200_Init
|
|
=================
|
|
*/
|
|
void R_R200_Init( void ) {
|
|
glConfig.allowR200Path = false;
|
|
|
|
common->Printf( "----------- R200_Init -----------\n" );
|
|
|
|
if ( !glConfig.atiFragmentShaderAvailable || !glConfig.ARBVertexProgramAvailable || !glConfig.ARBVertexBufferObjectAvailable ) {
|
|
common->Printf( "Not available.\n" );
|
|
return;
|
|
}
|
|
|
|
GL_CheckErrors();
|
|
|
|
qglGetIntegerv( GL_NUM_FRAGMENT_REGISTERS_ATI, &fsi.numFragmentRegisters );
|
|
qglGetIntegerv( GL_NUM_FRAGMENT_CONSTANTS_ATI, &fsi.numFragmentConstants );
|
|
qglGetIntegerv( GL_NUM_PASSES_ATI, &fsi.numPasses );
|
|
qglGetIntegerv( GL_NUM_INSTRUCTIONS_PER_PASS_ATI, &fsi.numInstructionsPerPass );
|
|
qglGetIntegerv( GL_NUM_INSTRUCTIONS_TOTAL_ATI, &fsi.numInstructionsTotal );
|
|
qglGetIntegerv( GL_COLOR_ALPHA_PAIRING_ATI, &fsi.colorAlphaPairing );
|
|
qglGetIntegerv( GL_NUM_LOOPBACK_COMPONENTS_ATI, &fsi.numLoopbackComponenets );
|
|
qglGetIntegerv( GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI, &fsi.numInputInterpolatorComponents );
|
|
|
|
common->Printf( "GL_NUM_FRAGMENT_REGISTERS_ATI: %i\n", fsi.numFragmentRegisters );
|
|
common->Printf( "GL_NUM_FRAGMENT_CONSTANTS_ATI: %i\n", fsi.numFragmentConstants );
|
|
common->Printf( "GL_NUM_PASSES_ATI: %i\n", fsi.numPasses );
|
|
common->Printf( "GL_NUM_INSTRUCTIONS_PER_PASS_ATI: %i\n", fsi.numInstructionsPerPass );
|
|
common->Printf( "GL_NUM_INSTRUCTIONS_TOTAL_ATI: %i\n", fsi.numInstructionsTotal );
|
|
common->Printf( "GL_COLOR_ALPHA_PAIRING_ATI: %i\n", fsi.colorAlphaPairing );
|
|
common->Printf( "GL_NUM_LOOPBACK_COMPONENTS_ATI: %i\n", fsi.numLoopbackComponenets );
|
|
common->Printf( "GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI: %i\n", fsi.numInputInterpolatorComponents );
|
|
|
|
common->Printf( "FPROG_FAST_PATH\n" );
|
|
R_BuildSurfaceFragmentProgram( FPROG_FAST_PATH );
|
|
|
|
common->Printf( "---------------------\n" );
|
|
|
|
glConfig.allowR200Path = true;
|
|
}
|