mirror of
https://github.com/id-Software/DOOM-3-BFG.git
synced 2024-11-26 22:11:42 +00:00
411 lines
15 KiB
C++
411 lines
15 KiB
C++
/*
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===========================================================================
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Doom 3 BFG Edition GPL Source Code
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Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
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Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 BFG Edition 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 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
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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.
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===========================================================================
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*/
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#pragma hdrstop
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#include "../idlib/precompiled.h"
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#include "tr_local.h"
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idRenderProgManager renderProgManager;
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/*
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================================================================================================
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idRenderProgManager::idRenderProgManager()
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================================================================================================
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*/
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idRenderProgManager::idRenderProgManager() {
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}
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/*
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================================================================================================
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idRenderProgManager::~idRenderProgManager()
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================================================================================================
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*/
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idRenderProgManager::~idRenderProgManager() {
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}
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/*
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================================================================================================
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R_ReloadShaders
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================================================================================================
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*/
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static void R_ReloadShaders( const idCmdArgs &args ) {
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renderProgManager.KillAllShaders();
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renderProgManager.LoadAllShaders();
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}
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/*
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================================================================================================
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idRenderProgManager::Init()
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================================================================================================
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*/
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void idRenderProgManager::Init() {
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common->Printf( "----- Initializing Render Shaders -----\n" );
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for ( int i = 0; i < MAX_BUILTINS; i++ ) {
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builtinShaders[i] = -1;
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}
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struct builtinShaders_t {
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int index;
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const char * name;
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} builtins[] = {
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{ BUILTIN_GUI, "gui.vfp" },
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{ BUILTIN_COLOR, "color.vfp" },
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{ BUILTIN_SIMPLESHADE, "simpleshade.vfp" },
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{ BUILTIN_TEXTURED, "texture.vfp" },
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{ BUILTIN_TEXTURE_VERTEXCOLOR, "texture_color.vfp" },
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{ BUILTIN_TEXTURE_VERTEXCOLOR_SKINNED, "texture_color_skinned.vfp" },
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{ BUILTIN_TEXTURE_TEXGEN_VERTEXCOLOR, "texture_color_texgen.vfp" },
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{ BUILTIN_INTERACTION, "interaction.vfp" },
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{ BUILTIN_INTERACTION_SKINNED, "interaction_skinned.vfp" },
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{ BUILTIN_INTERACTION_AMBIENT, "interactionAmbient.vfp" },
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{ BUILTIN_INTERACTION_AMBIENT_SKINNED, "interactionAmbient_skinned.vfp" },
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{ BUILTIN_ENVIRONMENT, "environment.vfp" },
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{ BUILTIN_ENVIRONMENT_SKINNED, "environment_skinned.vfp" },
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{ BUILTIN_BUMPY_ENVIRONMENT, "bumpyEnvironment.vfp" },
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{ BUILTIN_BUMPY_ENVIRONMENT_SKINNED, "bumpyEnvironment_skinned.vfp" },
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{ BUILTIN_DEPTH, "depth.vfp" },
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{ BUILTIN_DEPTH_SKINNED, "depth_skinned.vfp" },
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{ BUILTIN_SHADOW_DEBUG, "shadowDebug.vfp" },
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{ BUILTIN_SHADOW_DEBUG_SKINNED, "shadowDebug_skinned.vfp" },
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{ BUILTIN_BLENDLIGHT, "blendlight.vfp" },
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{ BUILTIN_FOG, "fog.vfp" },
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{ BUILTIN_FOG_SKINNED, "fog_skinned.vfp" },
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{ BUILTIN_SKYBOX, "skybox.vfp" },
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{ BUILTIN_WOBBLESKY, "wobblesky.vfp" },
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{ BUILTIN_POSTPROCESS, "postprocess.vfp" },
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{ BUILTIN_STEREO_DEGHOST, "stereoDeGhost.vfp" },
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{ BUILTIN_STEREO_WARP, "stereoWarp.vfp" },
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{ BUILTIN_ZCULL_RECONSTRUCT, "zcullReconstruct.vfp" },
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{ BUILTIN_BINK, "bink.vfp" },
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{ BUILTIN_BINK_GUI, "bink_gui.vfp" },
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{ BUILTIN_STEREO_INTERLACE, "stereoInterlace.vfp" },
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{ BUILTIN_MOTION_BLUR, "motionBlur.vfp" },
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};
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int numBuiltins = sizeof( builtins ) / sizeof( builtins[0] );
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vertexShaders.SetNum( numBuiltins );
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fragmentShaders.SetNum( numBuiltins );
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glslPrograms.SetNum( numBuiltins );
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for ( int i = 0; i < numBuiltins; i++ ) {
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vertexShaders[i].name = builtins[i].name;
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fragmentShaders[i].name = builtins[i].name;
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builtinShaders[builtins[i].index] = i;
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LoadVertexShader( i );
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LoadFragmentShader( i );
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LoadGLSLProgram( i, i, i );
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}
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// Special case handling for fastZ shaders
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builtinShaders[BUILTIN_SHADOW] = FindVertexShader( "shadow.vp" );
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builtinShaders[BUILTIN_SHADOW_SKINNED] = FindVertexShader( "shadow_skinned.vp" );
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FindGLSLProgram( "shadow.vp", builtinShaders[BUILTIN_SHADOW], -1 );
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FindGLSLProgram( "shadow_skinned.vp", builtinShaders[BUILTIN_SHADOW_SKINNED], -1 );
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glslUniforms.SetNum( RENDERPARM_USER + MAX_GLSL_USER_PARMS, vec4_zero );
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vertexShaders[builtinShaders[BUILTIN_TEXTURE_VERTEXCOLOR_SKINNED]].usesJoints = true;
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vertexShaders[builtinShaders[BUILTIN_INTERACTION_SKINNED]].usesJoints = true;
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vertexShaders[builtinShaders[BUILTIN_INTERACTION_AMBIENT_SKINNED]].usesJoints = true;
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vertexShaders[builtinShaders[BUILTIN_ENVIRONMENT_SKINNED]].usesJoints = true;
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vertexShaders[builtinShaders[BUILTIN_BUMPY_ENVIRONMENT_SKINNED]].usesJoints = true;
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vertexShaders[builtinShaders[BUILTIN_DEPTH_SKINNED]].usesJoints = true;
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vertexShaders[builtinShaders[BUILTIN_SHADOW_SKINNED]].usesJoints = true;
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vertexShaders[builtinShaders[BUILTIN_SHADOW_DEBUG_SKINNED]].usesJoints = true;
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vertexShaders[builtinShaders[BUILTIN_FOG_SKINNED]].usesJoints = true;
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cmdSystem->AddCommand( "reloadShaders", R_ReloadShaders, CMD_FL_RENDERER, "reloads shaders" );
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}
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/*
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================================================================================================
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idRenderProgManager::LoadAllShaders()
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================================================================================================
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*/
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void idRenderProgManager::LoadAllShaders() {
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for ( int i = 0; i < vertexShaders.Num(); i++ ) {
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LoadVertexShader( i );
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}
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for ( int i = 0; i < fragmentShaders.Num(); i++ ) {
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LoadFragmentShader( i );
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}
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for ( int i = 0; i < glslPrograms.Num(); ++i ) {
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LoadGLSLProgram( i, glslPrograms[i].vertexShaderIndex, glslPrograms[i].fragmentShaderIndex );
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}
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}
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/*
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================================================================================================
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idRenderProgManager::KillAllShaders()
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================================================================================================
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*/
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void idRenderProgManager::KillAllShaders() {
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Unbind();
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for ( int i = 0; i < vertexShaders.Num(); i++ ) {
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if ( vertexShaders[i].progId != INVALID_PROGID ) {
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qglDeleteShader( vertexShaders[i].progId );
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vertexShaders[i].progId = INVALID_PROGID;
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}
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}
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for ( int i = 0; i < fragmentShaders.Num(); i++ ) {
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if ( fragmentShaders[i].progId != INVALID_PROGID ) {
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qglDeleteShader( fragmentShaders[i].progId );
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fragmentShaders[i].progId = INVALID_PROGID;
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}
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}
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for ( int i = 0; i < glslPrograms.Num(); ++i ) {
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if ( glslPrograms[i].progId != INVALID_PROGID ) {
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qglDeleteProgram( glslPrograms[i].progId );
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glslPrograms[i].progId = INVALID_PROGID;
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}
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}
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}
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/*
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================================================================================================
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idRenderProgManager::Shutdown()
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================================================================================================
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*/
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void idRenderProgManager::Shutdown() {
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KillAllShaders();
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}
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/*
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================================================================================================
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idRenderProgManager::FindVertexShader
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================================================================================================
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*/
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int idRenderProgManager::FindVertexShader( const char * name ) {
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for ( int i = 0; i < vertexShaders.Num(); i++ ) {
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if ( vertexShaders[i].name.Icmp( name ) == 0 ) {
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LoadVertexShader( i );
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return i;
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}
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}
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vertexShader_t shader;
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shader.name = name;
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int index = vertexShaders.Append( shader );
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LoadVertexShader( index );
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currentVertexShader = index;
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// FIXME: we should really scan the program source code for using rpEnableSkinning but at this
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// point we directly load a binary and the program source code is not available on the consoles
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if ( idStr::Icmp( name, "heatHaze.vfp" ) == 0 ||
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idStr::Icmp( name, "heatHazeWithMask.vfp" ) == 0 ||
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idStr::Icmp( name, "heatHazeWithMaskAndVertex.vfp" ) == 0 ) {
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vertexShaders[index].usesJoints = true;
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vertexShaders[index].optionalSkinning = true;
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}
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return index;
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}
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/*
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================================================================================================
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idRenderProgManager::FindFragmentShader
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================================================================================================
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*/
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int idRenderProgManager::FindFragmentShader( const char * name ) {
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for ( int i = 0; i < fragmentShaders.Num(); i++ ) {
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if ( fragmentShaders[i].name.Icmp( name ) == 0 ) {
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LoadFragmentShader( i );
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return i;
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}
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}
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fragmentShader_t shader;
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shader.name = name;
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int index = fragmentShaders.Append( shader );
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LoadFragmentShader( index );
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currentFragmentShader = index;
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return index;
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}
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/*
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================================================================================================
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idRenderProgManager::LoadVertexShader
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================================================================================================
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*/
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void idRenderProgManager::LoadVertexShader( int index ) {
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if ( vertexShaders[index].progId != INVALID_PROGID ) {
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return; // Already loaded
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}
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vertexShaders[index].progId = ( GLuint ) LoadGLSLShader( GL_VERTEX_SHADER, vertexShaders[index].name, vertexShaders[index].uniforms );
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}
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/*
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================================================================================================
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idRenderProgManager::LoadFragmentShader
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================================================================================================
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*/
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void idRenderProgManager::LoadFragmentShader( int index ) {
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if ( fragmentShaders[index].progId != INVALID_PROGID ) {
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return; // Already loaded
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}
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fragmentShaders[index].progId = ( GLuint ) LoadGLSLShader( GL_FRAGMENT_SHADER, fragmentShaders[index].name, fragmentShaders[index].uniforms );
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}
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/*
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================================================================================================
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idRenderProgManager::LoadShader
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================================================================================================
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*/
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GLuint idRenderProgManager::LoadShader( GLenum target, const char * name, const char * startToken ) {
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idStr fullPath = "renderprogs\\gl\\";
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fullPath += name;
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common->Printf( "%s", fullPath.c_str() );
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char * fileBuffer = NULL;
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fileSystem->ReadFile( fullPath.c_str(), (void **)&fileBuffer, NULL );
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if ( fileBuffer == NULL ) {
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common->Printf( ": File not found\n" );
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return INVALID_PROGID;
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}
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if ( !R_IsInitialized() ) {
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common->Printf( ": Renderer not initialized\n" );
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fileSystem->FreeFile( fileBuffer );
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return INVALID_PROGID;
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}
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// vertex and fragment shaders are both be present in a single file, so
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// scan for the proper header to be the start point, and stamp a 0 in after the end
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char * start = strstr( (char *)fileBuffer, startToken );
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if ( start == NULL ) {
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common->Printf( ": %s not found\n", startToken );
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fileSystem->FreeFile( fileBuffer );
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return INVALID_PROGID;
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}
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char * end = strstr( start, "END" );
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if ( end == NULL ) {
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common->Printf( ": END not found for %s\n", startToken );
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fileSystem->FreeFile( fileBuffer );
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return INVALID_PROGID;
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}
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end[3] = 0;
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idStr program = start;
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program.Replace( "vertex.normal", "vertex.attrib[11]" );
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program.Replace( "vertex.texcoord[0]", "vertex.attrib[8]" );
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program.Replace( "vertex.texcoord", "vertex.attrib[8]" );
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GLuint progId;
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qglGenProgramsARB( 1, &progId );
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qglBindProgramARB( target, progId );
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qglGetError();
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qglProgramStringARB( target, GL_PROGRAM_FORMAT_ASCII_ARB, program.Length(), program.c_str() );
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GLenum err = qglGetError();
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GLint ofs = -1;
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qglGetIntegerv( GL_PROGRAM_ERROR_POSITION_ARB, &ofs );
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if ( ( err == GL_INVALID_OPERATION ) || ( ofs != -1 ) ) {
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if ( err == GL_INVALID_OPERATION ) {
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const GLubyte * str = qglGetString( GL_PROGRAM_ERROR_STRING_ARB );
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common->Printf( "\nGL_PROGRAM_ERROR_STRING_ARB: %s\n", str );
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} else {
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common->Printf( "\nUNKNOWN ERROR\n" );
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}
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if ( ofs < 0 ) {
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common->Printf( "GL_PROGRAM_ERROR_POSITION_ARB < 0\n" );
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} else if ( ofs >= program.Length() ) {
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common->Printf( "error at end of shader\n" );
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} else {
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common->Printf( "error at %i:\n%s", ofs, program.c_str() + ofs );
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}
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qglDeleteProgramsARB( 1, &progId );
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fileSystem->FreeFile( fileBuffer );
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return INVALID_PROGID;
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}
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common->Printf( "\n" );
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fileSystem->FreeFile( fileBuffer );
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return progId;
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}
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/*
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================================================================================================
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idRenderProgManager::BindShader
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================================================================================================
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*/
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void idRenderProgManager::BindShader( int vIndex, int fIndex ) {
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if ( currentVertexShader == vIndex && currentFragmentShader == fIndex ) {
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return;
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}
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currentVertexShader = vIndex;
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currentFragmentShader = fIndex;
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// vIndex denotes the GLSL program
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if ( vIndex >= 0 && vIndex < glslPrograms.Num() ) {
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currentRenderProgram = vIndex;
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RENDERLOG_PRINTF( "Binding GLSL Program %s\n", glslPrograms[vIndex].name.c_str() );
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qglUseProgram( glslPrograms[vIndex].progId );
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}
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}
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/*
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================================================================================================
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idRenderProgManager::Unbind
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================================================================================================
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*/
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void idRenderProgManager::Unbind() {
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currentVertexShader = -1;
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currentFragmentShader = -1;
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qglUseProgram( 0 );
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}
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/*
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================================================================================================
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idRenderProgManager::SetRenderParms
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================================================================================================
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*/
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void idRenderProgManager::SetRenderParms( renderParm_t rp, const float * value, int num ) {
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for ( int i = 0; i < num; i++ ) {
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SetRenderParm( (renderParm_t)(rp + i), value + ( i * 4 ) );
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}
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}
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/*
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================================================================================================
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idRenderProgManager::SetRenderParm
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================================================================================================
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*/
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void idRenderProgManager::SetRenderParm( renderParm_t rp, const float * value ) {
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SetUniformValue( rp, value );
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}
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