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OgreGpuProgram.cpp @ 9

Last change on this file since 9 was 5, checked in by anonymous, 17 years ago
=hoffentlich gehts jetzt
File size: 82.9 KB

Rev	Line
[5]	1	/*
	2	-----------------------------------------------------------------------------
	3	This source file is part of OGRE
	4	(Object-oriented Graphics Rendering Engine)
	5	For the latest info, see http://www.ogre3d.org
	6
	7	Copyright (c) 2000-2006 Torus Knot Software Ltd
	8	Also see acknowledgements in Readme.html
	9
	10	This program is free software you can redistribute it and/or modify it under
	11	the terms of the GNU Lesser General Public License as published by the Free Software
	12	Foundation either version 2 of the License, or (at your option) any later
	13	version.
	14
	15	This program is distributed in the hope that it will be useful, but WITHOUT
	16	ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS
	17	FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
	18
	19	You should have received a copy of the GNU Lesser General Public License along with
	20	this program if not, write to the Free Software Foundation, Inc., 59 Temple
	21	Place - Suite 330, Boston, MA 02111-1307, USA, or go to
	22	http://www.gnu.org/copyleft/lesser.txt.
	23
	24	You may alternatively use this source under the terms of a specific version of
	25	the OGRE Unrestricted License provided you have obtained such a license from
	26	Torus Knot Software Ltd.
	27	-----------------------------------------------------------------------------
	28	*/
	29	#include "OgreStableHeaders.h"
	30	#include "OgreGpuProgram.h"
	31	#include "OgreHighLevelGpuProgram.h"
	32	#include "OgreGpuProgramManager.h"
	33	#include "OgreVector3.h"
	34	#include "OgreVector4.h"
	35	#include "OgreAutoParamDataSource.h"
	36	#include "OgreLight.h"
	37	#include "OgreRoot.h"
	38	#include "OgreRenderSystem.h"
	39	#include "OgreRenderSystemCapabilities.h"
	40	#include "OgreStringConverter.h"
	41	#include "OgreLogManager.h"
	42
	43	namespace Ogre
	44	{
	45	//-----------------------------------------------------------------------------
	46	GpuProgram::CmdType GpuProgram::msTypeCmd;
	47	GpuProgram::CmdSyntax GpuProgram::msSyntaxCmd;
	48	GpuProgram::CmdSkeletal GpuProgram::msSkeletalCmd;
	49	GpuProgram::CmdMorph GpuProgram::msMorphCmd;
	50	GpuProgram::CmdPose GpuProgram::msPoseCmd;
	51	GpuProgram::CmdVTF GpuProgram::msVTFCmd;
	52
	53
	54	GpuProgramParameters::AutoConstantDefinition GpuProgramParameters::AutoConstantDictionary[] = {
	55	AutoConstantDefinition(ACT_WORLD_MATRIX, "world_matrix", 16, ET_REAL, ACDT_NONE),
	56	AutoConstantDefinition(ACT_INVERSE_WORLD_MATRIX, "inverse_world_matrix", 16, ET_REAL, ACDT_NONE),
	57	AutoConstantDefinition(ACT_TRANSPOSE_WORLD_MATRIX, "transpose_world_matrix", 16, ET_REAL, ACDT_NONE),
	58	AutoConstantDefinition(ACT_INVERSE_TRANSPOSE_WORLD_MATRIX, "inverse_transpose_world_matrix", 16, ET_REAL, ACDT_NONE),
	59
	60	AutoConstantDefinition(ACT_WORLD_MATRIX_ARRAY_3x4, "world_matrix_array_3x4", 12, ET_REAL, ACDT_NONE),
	61	AutoConstantDefinition(ACT_WORLD_MATRIX_ARRAY, "world_matrix_array", 16, ET_REAL, ACDT_NONE),
	62
	63	AutoConstantDefinition(ACT_VIEW_MATRIX, "view_matrix", 16, ET_REAL, ACDT_NONE),
	64	AutoConstantDefinition(ACT_INVERSE_VIEW_MATRIX, "inverse_view_matrix", 16, ET_REAL, ACDT_NONE),
	65	AutoConstantDefinition(ACT_TRANSPOSE_VIEW_MATRIX, "transpose_view_matrix", 16, ET_REAL, ACDT_NONE),
	66	AutoConstantDefinition(ACT_INVERSE_TRANSPOSE_VIEW_MATRIX, "inverse_transpose_view_matrix", 16, ET_REAL, ACDT_NONE),
	67
	68	AutoConstantDefinition(ACT_PROJECTION_MATRIX, "projection_matrix", 16, ET_REAL, ACDT_NONE),
	69	AutoConstantDefinition(ACT_INVERSE_PROJECTION_MATRIX, "inverse_projection_matrix", 16, ET_REAL, ACDT_NONE),
	70	AutoConstantDefinition(ACT_TRANSPOSE_PROJECTION_MATRIX, "transpose_projection_matrix", 16, ET_REAL, ACDT_NONE),
	71	AutoConstantDefinition(ACT_INVERSE_TRANSPOSE_PROJECTION_MATRIX, "inverse_transpose_projection_matrix", 16, ET_REAL, ACDT_NONE),
	72
	73	AutoConstantDefinition(ACT_VIEWPROJ_MATRIX, "viewproj_matrix", 16, ET_REAL, ACDT_NONE),
	74	AutoConstantDefinition(ACT_INVERSE_VIEWPROJ_MATRIX, "inverse_viewproj_matrix", 16, ET_REAL, ACDT_NONE),
	75	AutoConstantDefinition(ACT_TRANSPOSE_VIEWPROJ_MATRIX, "transpose_viewproj_matrix", 16, ET_REAL, ACDT_NONE),
	76	AutoConstantDefinition(ACT_INVERSE_TRANSPOSE_VIEWPROJ_MATRIX, "inverse_transpose_viewproj_matrix", 16, ET_REAL, ACDT_NONE),
	77
	78	AutoConstantDefinition(ACT_WORLDVIEW_MATRIX, "worldview_matrix", 16, ET_REAL, ACDT_NONE),
	79	AutoConstantDefinition(ACT_INVERSE_WORLDVIEW_MATRIX, "inverse_worldview_matrix", 16, ET_REAL, ACDT_NONE),
	80	AutoConstantDefinition(ACT_TRANSPOSE_WORLDVIEW_MATRIX, "transpose_worldview_matrix", 16, ET_REAL, ACDT_NONE),
	81	AutoConstantDefinition(ACT_INVERSE_TRANSPOSE_WORLDVIEW_MATRIX, "inverse_transpose_worldview_matrix", 16, ET_REAL, ACDT_NONE),
	82
	83	AutoConstantDefinition(ACT_WORLDVIEWPROJ_MATRIX, "worldviewproj_matrix", 16, ET_REAL, ACDT_NONE),
	84	AutoConstantDefinition(ACT_INVERSE_WORLDVIEWPROJ_MATRIX, "inverse_worldviewproj_matrix", 16, ET_REAL, ACDT_NONE),
	85	AutoConstantDefinition(ACT_TRANSPOSE_WORLDVIEWPROJ_MATRIX, "transpose_worldviewproj_matrix", 16, ET_REAL, ACDT_NONE),
	86	AutoConstantDefinition(ACT_INVERSE_TRANSPOSE_WORLDVIEWPROJ_MATRIX, "inverse_transpose_worldviewproj_matrix", 16, ET_REAL, ACDT_NONE),
	87
	88	AutoConstantDefinition(ACT_RENDER_TARGET_FLIPPING, "render_target_flipping", 1, ET_REAL, ACDT_NONE),
	89
	90	AutoConstantDefinition(ACT_FOG_COLOUR, "fog_colour", 4, ET_REAL, ACDT_NONE),
	91	AutoConstantDefinition(ACT_FOG_PARAMS, "fog_params", 4, ET_REAL, ACDT_NONE),
	92
	93	AutoConstantDefinition(ACT_SURFACE_AMBIENT_COLOUR, "surface_ambient_colour", 4, ET_REAL, ACDT_NONE),
	94	AutoConstantDefinition(ACT_SURFACE_DIFFUSE_COLOUR, "surface_diffuse_colour", 4, ET_REAL, ACDT_NONE),
	95	AutoConstantDefinition(ACT_SURFACE_SPECULAR_COLOUR, "surface_specular_colour", 4, ET_REAL, ACDT_NONE),
	96	AutoConstantDefinition(ACT_SURFACE_EMISSIVE_COLOUR, "surface_emissive_colour", 4, ET_REAL, ACDT_NONE),
	97	AutoConstantDefinition(ACT_SURFACE_SHININESS, "surface_shininess", 1, ET_REAL, ACDT_NONE),
	98
	99	AutoConstantDefinition(ACT_AMBIENT_LIGHT_COLOUR, "ambient_light_colour", 4, ET_REAL, ACDT_NONE),
	100	AutoConstantDefinition(ACT_LIGHT_DIFFUSE_COLOUR, "light_diffuse_colour", 4, ET_REAL, ACDT_INT),
	101	AutoConstantDefinition(ACT_LIGHT_SPECULAR_COLOUR, "light_specular_colour", 4, ET_REAL, ACDT_INT),
	102	AutoConstantDefinition(ACT_LIGHT_ATTENUATION, "light_attenuation", 4, ET_REAL, ACDT_INT),
	103	AutoConstantDefinition(ACT_SPOTLIGHT_PARAMS, "spotlight_params", 4, ET_REAL, ACDT_INT),
	104	AutoConstantDefinition(ACT_LIGHT_POSITION, "light_position", 4, ET_REAL, ACDT_INT),
	105	AutoConstantDefinition(ACT_LIGHT_POSITION_OBJECT_SPACE, "light_position_object_space", 4, ET_REAL, ACDT_INT),
	106	AutoConstantDefinition(ACT_LIGHT_POSITION_VIEW_SPACE, "light_position_view_space", 4, ET_REAL, ACDT_INT),
	107	AutoConstantDefinition(ACT_LIGHT_DIRECTION, "light_direction", 4, ET_REAL, ACDT_INT),
	108	AutoConstantDefinition(ACT_LIGHT_DIRECTION_OBJECT_SPACE, "light_direction_object_space", 4, ET_REAL, ACDT_INT),
	109	AutoConstantDefinition(ACT_LIGHT_DIRECTION_VIEW_SPACE, "light_direction_view_space", 4, ET_REAL, ACDT_INT),
	110	AutoConstantDefinition(ACT_LIGHT_DISTANCE_OBJECT_SPACE, "light_distance_object_space", 1, ET_REAL, ACDT_INT),
	111	AutoConstantDefinition(ACT_LIGHT_POWER_SCALE, "light_power", 1, ET_REAL, ACDT_INT),
	112	AutoConstantDefinition(ACT_LIGHT_DIFFUSE_COLOUR_ARRAY, "light_diffuse_colour_array", 4, ET_REAL, ACDT_INT),
	113	AutoConstantDefinition(ACT_LIGHT_SPECULAR_COLOUR_ARRAY, "light_specular_colour_array", 4, ET_REAL, ACDT_INT),
	114	AutoConstantDefinition(ACT_LIGHT_ATTENUATION_ARRAY, "light_attenuation_array", 4, ET_REAL, ACDT_INT),
	115	AutoConstantDefinition(ACT_LIGHT_POSITION_ARRAY, "light_position_array", 4, ET_REAL, ACDT_INT),
	116	AutoConstantDefinition(ACT_LIGHT_POSITION_OBJECT_SPACE_ARRAY, "light_position_object_space_array", 4, ET_REAL, ACDT_INT),
	117	AutoConstantDefinition(ACT_LIGHT_POSITION_VIEW_SPACE_ARRAY, "light_position_view_space_array", 4, ET_REAL, ACDT_INT),
	118	AutoConstantDefinition(ACT_LIGHT_DIRECTION_ARRAY, "light_direction_array", 4, ET_REAL, ACDT_INT),
	119	AutoConstantDefinition(ACT_LIGHT_DIRECTION_OBJECT_SPACE_ARRAY, "light_direction_object_space_array", 4, ET_REAL, ACDT_INT),
	120	AutoConstantDefinition(ACT_LIGHT_DIRECTION_VIEW_SPACE_ARRAY, "light_direction_view_space_array", 4, ET_REAL, ACDT_INT),
	121	AutoConstantDefinition(ACT_LIGHT_DISTANCE_OBJECT_SPACE_ARRAY, "light_distance_object_space_array", 1, ET_REAL, ACDT_INT),
	122	AutoConstantDefinition(ACT_LIGHT_POWER_SCALE_ARRAY, "light_power_array", 1, ET_REAL, ACDT_INT),
	123	AutoConstantDefinition(ACT_SPOTLIGHT_PARAMS_ARRAY, "spotlight_params_array", 4, ET_REAL, ACDT_INT),
	124
	125	AutoConstantDefinition(ACT_DERIVED_AMBIENT_LIGHT_COLOUR, "derived_ambient_light_colour", 4, ET_REAL, ACDT_NONE),
	126	AutoConstantDefinition(ACT_DERIVED_SCENE_COLOUR, "derived_scene_colour", 4, ET_REAL, ACDT_NONE),
	127	AutoConstantDefinition(ACT_DERIVED_LIGHT_DIFFUSE_COLOUR, "derived_light_diffuse_colour", 4, ET_REAL, ACDT_INT),
	128	AutoConstantDefinition(ACT_DERIVED_LIGHT_SPECULAR_COLOUR, "derived_light_specular_colour", 4, ET_REAL, ACDT_INT),
	129	AutoConstantDefinition(ACT_DERIVED_LIGHT_DIFFUSE_COLOUR_ARRAY, "derived_light_diffuse_colour_array", 4, ET_REAL, ACDT_INT),
	130	AutoConstantDefinition(ACT_DERIVED_LIGHT_SPECULAR_COLOUR_ARRAY, "derived_light_specular_colour_array", 4, ET_REAL, ACDT_INT),
	131
	132	AutoConstantDefinition(ACT_SHADOW_EXTRUSION_DISTANCE, "shadow_extrusion_distance", 1, ET_REAL, ACDT_INT),
	133	AutoConstantDefinition(ACT_CAMERA_POSITION, "camera_position", 3, ET_REAL, ACDT_NONE),
	134	AutoConstantDefinition(ACT_CAMERA_POSITION_OBJECT_SPACE, "camera_position_object_space", 3, ET_REAL, ACDT_NONE),
	135	AutoConstantDefinition(ACT_TEXTURE_VIEWPROJ_MATRIX, "texture_viewproj_matrix", 16, ET_REAL, ACDT_INT),
	136	AutoConstantDefinition(ACT_CUSTOM, "custom", 4, ET_REAL, ACDT_INT), // *** needs to be tested
	137	AutoConstantDefinition(ACT_TIME, "time", 1, ET_REAL, ACDT_REAL),
	138	AutoConstantDefinition(ACT_TIME_0_X, "time_0_x", 4, ET_REAL, ACDT_REAL),
	139	AutoConstantDefinition(ACT_COSTIME_0_X, "costime_0_x", 4, ET_REAL, ACDT_REAL),
	140	AutoConstantDefinition(ACT_SINTIME_0_X, "sintime_0_x", 4, ET_REAL, ACDT_REAL),
	141	AutoConstantDefinition(ACT_TANTIME_0_X, "tantime_0_x", 4, ET_REAL, ACDT_REAL),
	142	AutoConstantDefinition(ACT_TIME_0_X_PACKED, "time_0_x_packed", 4, ET_REAL, ACDT_REAL),
	143	AutoConstantDefinition(ACT_TIME_0_1, "time_0_1", 4, ET_REAL, ACDT_REAL),
	144	AutoConstantDefinition(ACT_COSTIME_0_1, "costime_0_1", 4, ET_REAL, ACDT_REAL),
	145	AutoConstantDefinition(ACT_SINTIME_0_1, "sintime_0_1", 4, ET_REAL, ACDT_REAL),
	146	AutoConstantDefinition(ACT_TANTIME_0_1, "tantime_0_1", 4, ET_REAL, ACDT_REAL),
	147	AutoConstantDefinition(ACT_TIME_0_1_PACKED, "time_0_1_packed", 4, ET_REAL, ACDT_REAL),
	148	AutoConstantDefinition(ACT_TIME_0_2PI, "time_0_2pi", 4, ET_REAL, ACDT_REAL),
	149	AutoConstantDefinition(ACT_COSTIME_0_2PI, "costime_0_2pi", 4, ET_REAL, ACDT_REAL),
	150	AutoConstantDefinition(ACT_SINTIME_0_2PI, "sintime_0_2pi", 4, ET_REAL, ACDT_REAL),
	151	AutoConstantDefinition(ACT_TANTIME_0_2PI, "tantime_0_2pi", 4, ET_REAL, ACDT_REAL),
	152	AutoConstantDefinition(ACT_TIME_0_2PI_PACKED, "time_0_2pi_packed", 4, ET_REAL, ACDT_REAL),
	153	AutoConstantDefinition(ACT_FRAME_TIME, "frame_time", 1, ET_REAL, ACDT_REAL),
	154	AutoConstantDefinition(ACT_FPS, "fps", 1, ET_REAL, ACDT_NONE),
	155	AutoConstantDefinition(ACT_VIEWPORT_WIDTH, "viewport_width", 1, ET_REAL, ACDT_NONE),
	156	AutoConstantDefinition(ACT_VIEWPORT_HEIGHT, "viewport_height", 1, ET_REAL, ACDT_NONE),
	157	AutoConstantDefinition(ACT_INVERSE_VIEWPORT_WIDTH, "inverse_viewport_width", 1, ET_REAL, ACDT_NONE),
	158	AutoConstantDefinition(ACT_INVERSE_VIEWPORT_HEIGHT, "inverse_viewport_height", 1, ET_REAL, ACDT_NONE),
	159	AutoConstantDefinition(ACT_VIEWPORT_SIZE, "viewport_size", 4, ET_REAL, ACDT_NONE),
	160	AutoConstantDefinition(ACT_VIEW_DIRECTION, "view_direction", 3, ET_REAL, ACDT_NONE),
	161	AutoConstantDefinition(ACT_VIEW_SIDE_VECTOR, "view_side_vector", 3, ET_REAL, ACDT_NONE),
	162	AutoConstantDefinition(ACT_VIEW_UP_VECTOR, "view_up_vector", 3, ET_REAL, ACDT_NONE),
	163	AutoConstantDefinition(ACT_FOV, "fov", 1, ET_REAL, ACDT_NONE),
	164	AutoConstantDefinition(ACT_NEAR_CLIP_DISTANCE, "near_clip_distance", 1, ET_REAL, ACDT_NONE),
	165	AutoConstantDefinition(ACT_FAR_CLIP_DISTANCE, "far_clip_distance", 1, ET_REAL, ACDT_NONE),
	166	AutoConstantDefinition(ACT_PASS_NUMBER, "pass_number", 1, ET_REAL, ACDT_NONE),
	167	AutoConstantDefinition(ACT_PASS_ITERATION_NUMBER, "pass_iteration_number", 1, ET_REAL, ACDT_NONE),
	168	AutoConstantDefinition(ACT_ANIMATION_PARAMETRIC, "animation_parametric", 4, ET_REAL, ACDT_INT),
	169	AutoConstantDefinition(ACT_TEXEL_OFFSETS, "texel_offsets", 4, ET_REAL, ACDT_NONE),
	170	AutoConstantDefinition(ACT_SCENE_DEPTH_RANGE, "scene_depth_range", 4, ET_REAL, ACDT_NONE),
	171	AutoConstantDefinition(ACT_SHADOW_SCENE_DEPTH_RANGE, "shadow_scene_depth_range", 4, ET_REAL, ACDT_INT),
	172	AutoConstantDefinition(ACT_TEXTURE_SIZE, "texture_size", 4, ET_REAL, ACDT_INT),
	173	AutoConstantDefinition(ACT_INVERSE_TEXTURE_SIZE, "inverse_texture_size", 4, ET_REAL, ACDT_INT),
	174	AutoConstantDefinition(ACT_PACKED_TEXTURE_SIZE, "packed_texture_size", 4, ET_REAL, ACDT_INT),
	175	};
	176
	177	//---------------------------------------------------------------------
	178	void GpuNamedConstants::generateConstantDefinitionArrayEntries(
	179	const String& paramName, const GpuConstantDefinition& baseDef)
	180	{
	181	// Copy definition for use with arrays
	182	GpuConstantDefinition arrayDef = baseDef;
	183	arrayDef.arraySize = 1;
	184	String arrayName;
	185
	186	// Add parameters for array accessors
	187	// [0] will refer to the same location, [1+] will increment
	188	// only populate others individually up to 16 array slots so as not to get out of hand
	189
	190	// paramName[0] version will always exist
	191	size_t maxArrayIndex = 1;
	192	if (baseDef.arraySize <= 16)
	193	maxArrayIndex = baseDef.arraySize;
	194
	195	for (size_t i = 0; i < maxArrayIndex; i++)
	196	{
	197	arrayName = paramName + "[" + StringConverter::toString(i) + "]";
	198	map.insert(GpuConstantDefinitionMap::value_type(arrayName, arrayDef));
	199	// increment location
	200	arrayDef.physicalIndex += arrayDef.elementSize;
	201	}
	202	// note no increment of buffer sizes since this is shared with main array def
	203
	204	}
	205
	206
	207	//-----------------------------------------------------------------------------
	208	GpuProgram::GpuProgram(ResourceManager* creator, const String& name, ResourceHandle handle,
	209	const String& group, bool isManual, ManualResourceLoader* loader)
	210	:Resource(creator, name, handle, group, isManual, loader),
	211	mType(GPT_VERTEX_PROGRAM), mLoadFromFile(true), mSkeletalAnimation(false),
	212	mVertexTextureFetch(false), mPassSurfaceAndLightStates(false), mCompileError(false)
	213	{
	214	}
	215	//-----------------------------------------------------------------------------
	216	void GpuProgram::setType(GpuProgramType t)
	217	{
	218	mType = t;
	219	}
	220	//-----------------------------------------------------------------------------
	221	void GpuProgram::setSyntaxCode(const String& syntax)
	222	{
	223	mSyntaxCode = syntax;
	224	}
	225	//-----------------------------------------------------------------------------
	226	void GpuProgram::setSourceFile(const String& filename)
	227	{
	228	mFilename = filename;
	229	mSource.clear();
	230	mLoadFromFile = true;
	231	mCompileError = false;
	232	}
	233	//-----------------------------------------------------------------------------
	234	void GpuProgram::setSource(const String& source)
	235	{
	236	mSource = source;
	237	mFilename.clear();
	238	mLoadFromFile = false;
	239	mCompileError = false;
	240	}
	241
	242	//-----------------------------------------------------------------------------
	243	void GpuProgram::loadImpl(void)
	244	{
	245	if (mLoadFromFile)
	246	{
	247	// find & load source code
	248	DataStreamPtr stream =
	249	ResourceGroupManager::getSingleton().openResource(
	250	mFilename, mGroup, true, this);
	251	mSource = stream->getAsString();
	252	}
	253
	254	// Call polymorphic load
	255	try
	256	{
	257	loadFromSource();
	258	}
	259	catch (const Exception&)
	260	{
	261	// will already have been logged
	262	StringUtil::StrStreamType str;
	263	str << "Gpu program " << mName << " encountered an error "
	264	<< "during loading and is thus not supported.";
	265	LogManager::getSingleton().logMessage(str.str());
	266
	267	mCompileError = true;
	268	}
	269
	270	}
	271	//-----------------------------------------------------------------------------
	272	bool GpuProgram::isRequiredCapabilitiesSupported(void) const
	273	{
	274	const RenderSystemCapabilities* caps =
	275	Root::getSingleton().getRenderSystem()->getCapabilities();
	276
	277	// If skeletal animation is being done, we need support for UBYTE4
	278	if (isSkeletalAnimationIncluded() &&
	279	!caps->hasCapability(RSC_VERTEX_FORMAT_UBYTE4))
	280	{
	281	return false;
	282	}
	283
	284	// Vertex texture fetch required?
	285	if (isVertexTextureFetchRequired() &&
	286	!caps->hasCapability(RSC_VERTEX_TEXTURE_FETCH))
	287	{
	288	return false;
	289	}
	290
	291	return true;
	292	}
	293	//-----------------------------------------------------------------------------
	294	bool GpuProgram::isSupported(void) const
	295	{
	296	if (mCompileError \|\| !isRequiredCapabilitiesSupported())
	297	return false;
	298
	299	return GpuProgramManager::getSingleton().isSyntaxSupported(mSyntaxCode);
	300	}
	301	//-----------------------------------------------------------------------------
	302	GpuProgramParametersSharedPtr GpuProgram::createParameters(void)
	303	{
	304	// Default implementation simply returns standard parameters.
	305	GpuProgramParametersSharedPtr ret =
	306	GpuProgramManager::getSingleton().createParameters();
	307	// link shared logical / physical map for low-level use
	308	ret->_setLogicalIndexes(&mFloatLogicalToPhysical, &mIntLogicalToPhysical);
	309
	310	// Copy in default parameters if present
	311	if (!mDefaultParams.isNull())
	312	ret->copyConstantsFrom(*(mDefaultParams.get()));
	313
	314	return ret;
	315	}
	316	//-----------------------------------------------------------------------------
	317	GpuProgramParametersSharedPtr GpuProgram::getDefaultParameters(void)
	318	{
	319	if (mDefaultParams.isNull())
	320	{
	321	mDefaultParams = createParameters();
	322	}
	323	return mDefaultParams;
	324	}
	325	//-----------------------------------------------------------------------------
	326	void GpuProgram::setupBaseParamDictionary(void)
	327	{
	328	ParamDictionary* dict = getParamDictionary();
	329
	330	dict->addParameter(
	331	ParameterDef("type", "'vertex_program' or 'fragment_program'",
	332	PT_STRING), &msTypeCmd);
	333	dict->addParameter(
	334	ParameterDef("syntax", "Syntax code, e.g. vs_1_1", PT_STRING), &msSyntaxCmd);
	335	dict->addParameter(
	336	ParameterDef("includes_skeletal_animation",
	337	"Whether this vertex program includes skeletal animation", PT_BOOL),
	338	&msSkeletalCmd);
	339	dict->addParameter(
	340	ParameterDef("includes_morph_animation",
	341	"Whether this vertex program includes morph animation", PT_BOOL),
	342	&msMorphCmd);
	343	dict->addParameter(
	344	ParameterDef("includes_pose_animation",
	345	"The number of poses this vertex program supports for pose animation", PT_INT),
	346	&msPoseCmd);
	347	dict->addParameter(
	348	ParameterDef("uses_vertex_texture_fetch",
	349	"Whether this vertex program requires vertex texture fetch support.", PT_BOOL),
	350	&msVTFCmd);
	351	}
	352
	353	//-----------------------------------------------------------------------
	354	const String& GpuProgram::getLanguage(void) const
	355	{
	356	static const String language = "asm";
	357
	358	return language;
	359	}
	360
	361
	362
	363	//-----------------------------------------------------------------------------
	364	// GpuProgramParameters Methods
	365	//-----------------------------------------------------------------------------
	366	GpuProgramParameters::GpuProgramParameters() :
	367	mFloatLogicalToPhysical(0)
	368	, mIntLogicalToPhysical(0)
	369	, mNamedConstants(0)
	370	, mTransposeMatrices(false)
	371	, mIgnoreMissingParams(false)
	372	, mActivePassIterationIndex(std::numeric_limits<size_t>::max())
	373	{
	374	}
	375	//-----------------------------------------------------------------------------
	376
	377	GpuProgramParameters::GpuProgramParameters(const GpuProgramParameters& oth)
	378	{
	379	*this = oth;
	380	}
	381
	382	//-----------------------------------------------------------------------------
	383	GpuProgramParameters& GpuProgramParameters::operator=(const GpuProgramParameters& oth)
	384	{
	385	// let compiler perform shallow copies of structures
	386	// AutoConstantEntry, RealConstantEntry, IntConstantEntry
	387	mFloatConstants = oth.mFloatConstants;
	388	mIntConstants = oth.mIntConstants;
	389	mAutoConstants = oth.mAutoConstants;
	390	mFloatLogicalToPhysical = oth.mFloatLogicalToPhysical;
	391	mIntLogicalToPhysical = oth.mIntLogicalToPhysical;
	392	mNamedConstants = oth.mNamedConstants;
	393
	394	mTransposeMatrices = oth.mTransposeMatrices;
	395	mIgnoreMissingParams = oth.mIgnoreMissingParams;
	396	mActivePassIterationIndex = oth.mActivePassIterationIndex;
	397
	398	return *this;
	399	}
	400	//---------------------------------------------------------------------
	401	void GpuProgramParameters::_setNamedConstants(
	402	const GpuNamedConstants* namedConstants)
	403	{
	404	mNamedConstants = namedConstants;
	405
	406	// Determine any extension to local buffers
	407
	408	// Size and reset buffer (fill with zero to make comparison later ok)
	409	if (namedConstants->floatBufferSize > mFloatConstants.size())
	410	{
	411	mFloatConstants.insert(mFloatConstants.end(),
	412	namedConstants->floatBufferSize - mFloatConstants.size(), 0.0f);
	413	}
	414	if (namedConstants->intBufferSize > mIntConstants.size())
	415	{
	416	mIntConstants.insert(mIntConstants.end(),
	417	namedConstants->intBufferSize - mIntConstants.size(), 0);
	418	}
	419	}
	420	//---------------------------------------------------------------------
	421	void GpuProgramParameters::_setLogicalIndexes(
	422	GpuLogicalBufferStruct* floatIndexMap,
	423	GpuLogicalBufferStruct* intIndexMap)
	424	{
	425	mFloatLogicalToPhysical = floatIndexMap;
	426	mIntLogicalToPhysical = intIndexMap;
	427
	428	// resize the internal buffers
	429	// Note that these will only contain something after the first parameter
	430	// set has set some parameters
	431
	432	// Size and reset buffer (fill with zero to make comparison later ok)
	433	if (floatIndexMap->bufferSize > mFloatConstants.size())
	434	{
	435	mFloatConstants.insert(mFloatConstants.end(),
	436	floatIndexMap->bufferSize - mFloatConstants.size(), 0.0f);
	437	}
	438	if (intIndexMap->bufferSize > mIntConstants.size())
	439	{
	440	mIntConstants.insert(mIntConstants.end(),
	441	intIndexMap->bufferSize - mIntConstants.size(), 0);
	442	}
	443
	444	}
	445	//---------------------------------------------------------------------()
	446	void GpuProgramParameters::setConstant(size_t index, const Vector4& vec)
	447	{
	448	setConstant(index, vec.ptr(), 1);
	449	}
	450	//-----------------------------------------------------------------------------
	451	void GpuProgramParameters::setConstant(size_t index, Real val)
	452	{
	453	setConstant(index, Vector4(val, 0.0f, 0.0f, 0.0f));
	454	}
	455	//-----------------------------------------------------------------------------
	456	void GpuProgramParameters::setConstant(size_t index, const Vector3& vec)
	457	{
	458	setConstant(index, Vector4(vec.x, vec.y, vec.z, 1.0f));
	459	}
	460	//-----------------------------------------------------------------------------
	461	void GpuProgramParameters::setConstant(size_t index, const Matrix4& m)
	462	{
	463	// set as 4x 4-element floats
	464	if (mTransposeMatrices)
	465	{
	466	Matrix4 t = m.transpose();
	467	GpuProgramParameters::setConstant(index, t[0], 4);
	468	}
	469	else
	470	{
	471	GpuProgramParameters::setConstant(index, m[0], 4);
	472	}
	473
	474	}
	475	//-----------------------------------------------------------------------------
	476	void GpuProgramParameters::setConstant(size_t index, const Matrix4* pMatrix,
	477	size_t numEntries)
	478	{
	479	if (mTransposeMatrices)
	480	{
	481	for (size_t i = 0; i < numEntries; ++i)
	482	{
	483	Matrix4 t = pMatrix[i].transpose();
	484	GpuProgramParameters::setConstant(index, t[0], 4);
	485	index += 4;
	486	}
	487	}
	488	else
	489	{
	490	GpuProgramParameters::setConstant(index, pMatrix[0][0], 4 * numEntries);
	491	}
	492
	493	}
	494	//-----------------------------------------------------------------------------
	495	void GpuProgramParameters::setConstant(size_t index, const ColourValue& colour)
	496	{
	497	setConstant(index, colour.ptr(), 1);
	498	}
	499	//-----------------------------------------------------------------------------
	500	void GpuProgramParameters::setConstant(size_t index, const float *val, size_t count)
	501	{
	502	// Raw buffer size is 4x count
	503	size_t rawCount = count * 4;
	504	// get physical index
	505	assert(mFloatLogicalToPhysical && "GpuProgram hasn't set up the logical -> physical map!");
	506
	507	size_t physicalIndex = _getFloatConstantPhysicalIndex(index, rawCount);
	508
	509	// Copy
	510	_writeRawConstants(physicalIndex, val, rawCount);
	511
	512	}
	513	//-----------------------------------------------------------------------------
	514	void GpuProgramParameters::setConstant(size_t index, const double *val, size_t count)
	515	{
	516	// Raw buffer size is 4x count
	517	size_t rawCount = count * 4;
	518	// get physical index
	519	assert(mFloatLogicalToPhysical && "GpuProgram hasn't set up the logical -> physical map!");
	520
	521	size_t physicalIndex = _getFloatConstantPhysicalIndex(index, rawCount);
	522	assert(physicalIndex + rawCount <= mFloatConstants.size());
	523	// Copy manually since cast required
	524	for (size_t i = 0; i < rawCount; ++i)
	525	{
	526	mFloatConstants[physicalIndex + i] =
	527	static_cast<float>(val[i]);
	528	}
	529
	530	}
	531	//-----------------------------------------------------------------------------
	532	void GpuProgramParameters::setConstant(size_t index, const int *val, size_t count)
	533	{
	534	// Raw buffer size is 4x count
	535	size_t rawCount = count * 4;
	536	// get physical index
	537	assert(mIntLogicalToPhysical && "GpuProgram hasn't set up the logical -> physical map!");
	538
	539	size_t physicalIndex = _getIntConstantPhysicalIndex(index, rawCount);
	540	// Copy
	541	_writeRawConstants(physicalIndex, val, rawCount);
	542	}
	543	//-----------------------------------------------------------------------------
	544	void GpuProgramParameters::_writeRawConstant(size_t physicalIndex, const Vector4& vec,
	545	size_t count)
	546	{
	547	// remember, raw content access uses raw float count rather than float4
	548	// write either the number requested (for packed types) or up to 4
	549	_writeRawConstants(physicalIndex, vec.ptr(), std::min(count, (size_t)4));
	550	}
	551	//-----------------------------------------------------------------------------
	552	void GpuProgramParameters::_writeRawConstant(size_t physicalIndex, Real val)
	553	{
	554	_writeRawConstants(physicalIndex, &val, 1);
	555	}
	556	//-----------------------------------------------------------------------------
	557	void GpuProgramParameters::_writeRawConstant(size_t physicalIndex, int val)
	558	{
	559	_writeRawConstants(physicalIndex, &val, 1);
	560	}
	561	//-----------------------------------------------------------------------------
	562	void GpuProgramParameters::_writeRawConstant(size_t physicalIndex, const Vector3& vec)
	563	{
	564	_writeRawConstants(physicalIndex, vec.ptr(), 3);
	565	}
	566	//-----------------------------------------------------------------------------
	567	void GpuProgramParameters::_writeRawConstant(size_t physicalIndex, const Matrix4& m)
	568	{
	569
	570	// remember, raw content access uses raw float count rather than float4
	571	if (mTransposeMatrices)
	572	{
	573	Matrix4 t = m.transpose();
	574	_writeRawConstants(physicalIndex, t[0], 16);
	575	}
	576	else
	577	{
	578	_writeRawConstants(physicalIndex, m[0], 16);
	579	}
	580
	581	}
	582	//-----------------------------------------------------------------------------
	583	void GpuProgramParameters::_writeRawConstant(size_t physicalIndex, const Matrix4* pMatrix, size_t numEntries)
	584	{
	585	// remember, raw content access uses raw float count rather than float4
	586	if (mTransposeMatrices)
	587	{
	588	for (size_t i = 0; i < numEntries; ++i)
	589	{
	590	Matrix4 t = pMatrix[i].transpose();
	591	_writeRawConstants(physicalIndex, t[0], 16);
	592	physicalIndex += 16;
	593	}
	594	}
	595	else
	596	{
	597	_writeRawConstants(physicalIndex, pMatrix[0][0], 16 * numEntries);
	598	}
	599
	600
	601	}
	602	//-----------------------------------------------------------------------------
	603	void GpuProgramParameters::_writeRawConstant(size_t physicalIndex,
	604	const ColourValue& colour, size_t count)
	605	{
	606	// write either the number requested (for packed types) or up to 4
	607	_writeRawConstants(physicalIndex, colour.ptr(), std::min(count, (size_t)4));
	608	}
	609	//-----------------------------------------------------------------------------
	610	void GpuProgramParameters::_writeRawConstants(size_t physicalIndex, const double* val, size_t count)
	611	{
	612	assert(physicalIndex + count <= mFloatConstants.size());
	613	for (size_t i = 0; i < count; ++i)
	614	{
	615	mFloatConstants[physicalIndex+i] = static_cast<float>(val[i]);
	616	}
	617	}
	618	//-----------------------------------------------------------------------------
	619	void GpuProgramParameters::_writeRawConstants(size_t physicalIndex, const float* val, size_t count)
	620	{
	621	assert(physicalIndex + count <= mFloatConstants.size());
	622	memcpy(&mFloatConstants[physicalIndex], val, sizeof(float) * count);
	623	}
	624	//-----------------------------------------------------------------------------
	625	void GpuProgramParameters::_writeRawConstants(size_t physicalIndex, const int* val, size_t count)
	626	{
	627	assert(physicalIndex + count <= mIntConstants.size());
	628	memcpy(&mIntConstants[physicalIndex], val, sizeof(int) * count);
	629	}
	630	//-----------------------------------------------------------------------------
	631	void GpuProgramParameters::_readRawConstants(size_t physicalIndex, size_t count, float* dest)
	632	{
	633	assert(physicalIndex + count <= mFloatConstants.size());
	634	memcpy(dest, &mFloatConstants[physicalIndex], sizeof(float) * count);
	635	}
	636	//-----------------------------------------------------------------------------
	637	void GpuProgramParameters::_readRawConstants(size_t physicalIndex, size_t count, int* dest)
	638	{
	639	assert(physicalIndex + count <= mIntConstants.size());
	640	memcpy(dest, &mIntConstants[physicalIndex], sizeof(int) * count);
	641	}
	642	//-----------------------------------------------------------------------------
	643	size_t GpuProgramParameters::_getFloatConstantPhysicalIndex(
	644	size_t logicalIndex, size_t requestedSize)
	645	{
	646	if (!mFloatLogicalToPhysical)
	647	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	648	"This is not a low-level parameter parameter object",
	649	"GpuProgramParameters::_getFloatConstantPhysicalIndex");
	650
	651	size_t physicalIndex;
	652	OGRE_LOCK_MUTEX(mFloatLogicalToPhysical->mutex)
	653
	654	GpuLogicalIndexUseMap::iterator logi = mFloatLogicalToPhysical->map.find(logicalIndex);
	655	if (logi == mFloatLogicalToPhysical->map.end())
	656	{
	657	if (requestedSize)
	658	{
	659	physicalIndex = mFloatConstants.size();
	660
	661	// Expand at buffer end
	662	mFloatConstants.insert(mFloatConstants.end(), requestedSize, 0.0f);
	663
	664	// Record extended size for future GPU params re-using this information
	665	mFloatLogicalToPhysical->bufferSize = mFloatConstants.size();
	666
	667	// low-level programs will not know about mapping ahead of time, so
	668	// populate it. Other params objects will be able to just use this
	669	// accepted mapping since the constant structure will be the same
	670
	671	// Set up a mapping for all items in the count
	672	size_t currPhys = physicalIndex;
	673	size_t count = requestedSize / 4;
	674	for (size_t logicalNum = 0; logicalNum < count; ++logicalNum)
	675	{
	676	mFloatLogicalToPhysical->map.insert(
	677	GpuLogicalIndexUseMap::value_type(
	678	logicalIndex + logicalNum,
	679	GpuLogicalIndexUse(currPhys, requestedSize)));
	680	currPhys += 4;
	681	}
	682	}
	683	else
	684	{
	685	// no match & ignore
	686	return std::numeric_limits<size_t>::max();
	687	}
	688
	689	}
	690	else
	691	{
	692	physicalIndex = logi->second.physicalIndex;
	693	// check size
	694	if (logi->second.currentSize < requestedSize)
	695	{
	696	// init buffer entry wasn't big enough; could be a mistake on the part
	697	// of the original use, or perhaps a variable length we can't predict
	698	// until first actual runtime use e.g. world matrix array
	699	size_t insertCount = requestedSize - logi->second.currentSize;
	700	FloatConstantList::iterator insertPos = mFloatConstants.begin();
	701	std::advance(insertPos, physicalIndex);
	702	mFloatConstants.insert(insertPos, insertCount, 0.0f);
	703	// shift all physical positions after this one
	704	for (GpuLogicalIndexUseMap::iterator i = mFloatLogicalToPhysical->map.begin();
	705	i != mFloatLogicalToPhysical->map.end(); ++i)
	706	{
	707	if (i->second.physicalIndex > physicalIndex)
	708	i->second.physicalIndex += insertCount;
	709	}
	710	for (AutoConstantList::iterator i = mAutoConstants.begin();
	711	i != mAutoConstants.end(); ++i)
	712	{
	713	if (i->physicalIndex > physicalIndex)
	714	i->physicalIndex += insertCount;
	715	}
	716	}
	717	}
	718
	719	return physicalIndex;
	720	}
	721	//-----------------------------------------------------------------------------
	722	size_t GpuProgramParameters::_getIntConstantPhysicalIndex(
	723	size_t logicalIndex, size_t requestedSize)
	724	{
	725	if (!mIntLogicalToPhysical)
	726	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	727	"This is not a low-level parameter parameter object",
	728	"GpuProgramParameters::_getIntConstantPhysicalIndex");
	729
	730	size_t physicalIndex;
	731	OGRE_LOCK_MUTEX(mIntLogicalToPhysical->mutex)
	732
	733	GpuLogicalIndexUseMap::iterator logi = mIntLogicalToPhysical->map.find(logicalIndex);
	734	if (logi == mIntLogicalToPhysical->map.end())
	735	{
	736	if (requestedSize)
	737	{
	738	physicalIndex = mIntConstants.size();
	739
	740	// Expand at buffer end
	741	mIntConstants.insert(mIntConstants.end(), requestedSize, 0);
	742
	743	// Record extended size for future GPU params re-using this information
	744	mIntLogicalToPhysical->bufferSize = mIntConstants.size();
	745
	746	// low-level programs will not know about mapping ahead of time, so
	747	// populate it. Other params objects will be able to just use this
	748	// accepted mapping since the constant structure will be the same
	749
	750	// Set up a mapping for all items in the count
	751	size_t currPhys = physicalIndex;
	752	size_t count = requestedSize / 4;
	753	for (size_t logicalNum = 0; logicalNum < count; ++logicalNum)
	754	{
	755	mIntLogicalToPhysical->map.insert(
	756	GpuLogicalIndexUseMap::value_type(
	757	logicalIndex + logicalNum,
	758	GpuLogicalIndexUse(currPhys, requestedSize)));
	759	currPhys += 4;
	760	}
	761	}
	762	else
	763	{
	764	// no match
	765	return std::numeric_limits<size_t>::max();
	766	}
	767
	768	}
	769	else
	770	{
	771	physicalIndex = logi->second.physicalIndex;
	772	// check size
	773	if (logi->second.currentSize < requestedSize)
	774	{
	775	// init buffer entry wasn't big enough; could be a mistake on the part
	776	// of the original use, or perhaps a variable length we can't predict
	777	// until first actual runtime use e.g. world matrix array
	778	size_t insertCount = requestedSize - logi->second.currentSize;
	779	IntConstantList::iterator insertPos = mIntConstants.begin();
	780	std::advance(insertPos, physicalIndex);
	781	mIntConstants.insert(insertPos, insertCount, 0);
	782	// shift all physical positions after this one
	783	for (GpuLogicalIndexUseMap::iterator i = mIntLogicalToPhysical->map.begin();
	784	i != mIntLogicalToPhysical->map.end(); ++i)
	785	{
	786	if (i->second.physicalIndex > physicalIndex)
	787	i->second.physicalIndex += insertCount;
	788	}
	789	for (AutoConstantList::iterator i = mAutoConstants.begin();
	790	i != mAutoConstants.end(); ++i)
	791	{
	792	if (i->physicalIndex > physicalIndex)
	793	i->physicalIndex += insertCount;
	794	}
	795	}
	796	}
	797
	798	return physicalIndex;
	799	}
	800	//-----------------------------------------------------------------------------
	801	size_t GpuProgramParameters::getFloatLogicalIndexForPhysicalIndex(size_t physicalIndex)
	802	{
	803	// perhaps build a reverse map of this sometime (shared in GpuProgram)
	804	for (GpuLogicalIndexUseMap::iterator i = mFloatLogicalToPhysical->map.begin();
	805	i != mFloatLogicalToPhysical->map.end(); ++i)
	806	{
	807	if (i->second.physicalIndex == physicalIndex)
	808	return i->first;
	809	}
	810	return std::numeric_limits<size_t>::max();
	811
	812	}
	813	//-----------------------------------------------------------------------------
	814	size_t GpuProgramParameters::getIntLogicalIndexForPhysicalIndex(size_t physicalIndex)
	815	{
	816	// perhaps build a reverse map of this sometime (shared in GpuProgram)
	817	for (GpuLogicalIndexUseMap::iterator i = mIntLogicalToPhysical->map.begin();
	818	i != mIntLogicalToPhysical->map.end(); ++i)
	819	{
	820	if (i->second.physicalIndex == physicalIndex)
	821	return i->first;
	822	}
	823	return std::numeric_limits<size_t>::max();
	824
	825	}
	826	//-----------------------------------------------------------------------------
	827	GpuConstantDefinitionIterator GpuProgramParameters::getConstantDefinitionIterator(void) const
	828	{
	829	if (!mNamedConstants)
	830	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	831	"This params object is not based on a program with named parameters.",
	832	"GpuProgramParameters::getConstantDefinitionIterator");
	833
	834	return GpuConstantDefinitionIterator(mNamedConstants->map.begin(),
	835	mNamedConstants->map.end());
	836
	837	}
	838	//-----------------------------------------------------------------------------
	839	const GpuNamedConstants& GpuProgramParameters::getConstantDefinitions() const
	840	{
	841	if (!mNamedConstants)
	842	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	843	"This params object is not based on a program with named parameters.",
	844	"GpuProgramParameters::getConstantDefinitionIterator");
	845
	846	return *mNamedConstants;
	847	}
	848	//-----------------------------------------------------------------------------
	849	const GpuConstantDefinition& GpuProgramParameters::getConstantDefinition(const String& name) const
	850	{
	851	if (!mNamedConstants)
	852	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	853	"This params object is not based on a program with named parameters.",
	854	"GpuProgramParameters::getConstantDefinitionIterator");
	855
	856
	857	// locate, and throw exception if not found
	858	const GpuConstantDefinition* def = _findNamedConstantDefinition(name, true);
	859
	860	return *def;
	861
	862	}
	863	//-----------------------------------------------------------------------------
	864	const GpuConstantDefinition*
	865	GpuProgramParameters::_findNamedConstantDefinition(const String& name,
	866	bool throwExceptionIfNotFound) const
	867	{
	868	if (!mNamedConstants)
	869	{
	870	if (throwExceptionIfNotFound)
	871	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	872	"Named constants have not been initialised, perhaps a compile error.",
	873	"GpuProgramParameters::_findNamedConstantDefinition");
	874	return 0;
	875	}
	876
	877	GpuConstantDefinitionMap::const_iterator i = mNamedConstants->map.find(name);
	878	if (i == mNamedConstants->map.end())
	879	{
	880	if (throwExceptionIfNotFound)
	881	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	882	"Parameter called " + name + " does not exist. ",
	883	"GpuProgramParameters::_findNamedConstantDefinition");
	884	return 0;
	885	}
	886	else
	887	{
	888	return &(i->second);
	889	}
	890	}
	891	//-----------------------------------------------------------------------------
	892	void GpuProgramParameters::setAutoConstant(size_t index, AutoConstantType acType, size_t extraInfo)
	893	{
	894	// Get auto constant definition for sizing
	895	const AutoConstantDefinition* autoDef = getAutoConstantDefinition(acType);
	896	// round up to nearest multiple of 4
	897	size_t sz = autoDef->elementCount;
	898	if (sz % 4 > 0)
	899	{
	900	sz += 4 - (sz % 4);
	901	}
	902
	903	size_t physicalIndex = _getFloatConstantPhysicalIndex(index, sz);
	904
	905	_setRawAutoConstant(physicalIndex, acType, extraInfo);
	906	}
	907	//-----------------------------------------------------------------------------
	908	void GpuProgramParameters::_setRawAutoConstant(size_t physicalIndex,
	909	AutoConstantType acType, size_t extraInfo, size_t elementSize)
	910	{
	911	// update existing index if it exists
	912	bool found = false;
	913	for (AutoConstantList::iterator i = mAutoConstants.begin();
	914	i != mAutoConstants.end(); ++i)
	915	{
	916	if (i->physicalIndex == physicalIndex)
	917	{
	918	i->paramType = acType;
	919	i->data = extraInfo;
	920	i->elementCount = elementSize;
	921	found = true;
	922	break;
	923	}
	924	}
	925	if (!found)
	926	mAutoConstants.push_back(AutoConstantEntry(acType, physicalIndex, extraInfo, elementSize));
	927
	928	}
	929	//-----------------------------------------------------------------------------
	930	void GpuProgramParameters::_setRawAutoConstantReal(size_t physicalIndex,
	931	AutoConstantType acType, Real rData, size_t elementSize)
	932	{
	933	// update existing index if it exists
	934	bool found = false;
	935	for (AutoConstantList::iterator i = mAutoConstants.begin();
	936	i != mAutoConstants.end(); ++i)
	937	{
	938	if (i->physicalIndex == physicalIndex)
	939	{
	940	i->paramType = acType;
	941	i->fData = rData;
	942	i->elementCount = elementSize;
	943	found = true;
	944	break;
	945	}
	946	}
	947	if (!found)
	948	mAutoConstants.push_back(AutoConstantEntry(acType, physicalIndex, rData, elementSize));
	949
	950	}
	951	//-----------------------------------------------------------------------------
	952	void GpuProgramParameters::clearAutoConstant(size_t index)
	953	{
	954	size_t physicalIndex = _getFloatConstantPhysicalIndex(index, 0);
	955	if (physicalIndex != std::numeric_limits<size_t>::max())
	956	{
	957	// update existing index if it exists
	958	for (AutoConstantList::iterator i = mAutoConstants.begin();
	959	i != mAutoConstants.end(); ++i)
	960	{
	961	if (i->physicalIndex == physicalIndex)
	962	{
	963	mAutoConstants.erase(i);
	964	break;
	965	}
	966	}
	967	}
	968	}
	969	//-----------------------------------------------------------------------------
	970	void GpuProgramParameters::clearNamedAutoConstant(const String& name)
	971	{
	972	const GpuConstantDefinition* def = _findNamedConstantDefinition(name);
	973	if (def)
	974	{
	975	// Autos are always floating point
	976	if (def->isFloat())
	977	{
	978	for (AutoConstantList::iterator i = mAutoConstants.begin();
	979	i != mAutoConstants.end(); ++i)
	980	{
	981	if (i->physicalIndex == def->physicalIndex)
	982	{
	983	mAutoConstants.erase(i);
	984	break;
	985	}
	986	}
	987	}
	988
	989	}
	990	}
	991	//-----------------------------------------------------------------------------
	992	void GpuProgramParameters::clearAutoConstants(void)
	993	{
	994	mAutoConstants.clear();
	995	}
	996	//-----------------------------------------------------------------------------
	997	GpuProgramParameters::AutoConstantIterator GpuProgramParameters::getAutoConstantIterator(void) const
	998	{
	999	return AutoConstantIterator(mAutoConstants.begin(), mAutoConstants.end());
	1000	}
	1001	//-----------------------------------------------------------------------------
	1002	void GpuProgramParameters::setAutoConstantReal(size_t index, AutoConstantType acType, Real rData)
	1003	{
	1004	// Get auto constant definition for sizing
	1005	const AutoConstantDefinition* autoDef = getAutoConstantDefinition(acType);
	1006	// round up to nearest multiple of 4
	1007	size_t sz = autoDef->elementCount;
	1008	if (sz % 4 > 0)
	1009	{
	1010	sz += 4 - (sz % 4);
	1011	}
	1012
	1013	size_t physicalIndex = _getFloatConstantPhysicalIndex(index, sz);
	1014
	1015	_setRawAutoConstantReal(physicalIndex, acType, rData);
	1016	}
	1017	//-----------------------------------------------------------------------------
	1018
	1019	//-----------------------------------------------------------------------------
	1020	void GpuProgramParameters::_updateAutoParamsNoLights(const AutoParamDataSource& source)
	1021	{
	1022	if (!hasAutoConstants()) return; // abort early if no autos
	1023	Vector3 vec3;
	1024	Vector4 vec4;
	1025	size_t index;
	1026	size_t numMatrices;
	1027	const Matrix4* pMatrix;
	1028	size_t m;
	1029
	1030	mActivePassIterationIndex = std::numeric_limits<size_t>::max();
	1031
	1032	// Autoconstant index is not a physical index
	1033	AutoConstantList::const_iterator i, iend;
	1034	iend = mAutoConstants.end();
	1035	for (i = mAutoConstants.begin(); i != iend; ++i)
	1036	{
	1037	switch(i->paramType)
	1038	{
	1039	case ACT_WORLD_MATRIX:
	1040	_writeRawConstant(i->physicalIndex, source.getWorldMatrix());
	1041	break;
	1042	case ACT_INVERSE_WORLD_MATRIX:
	1043	_writeRawConstant(i->physicalIndex, source.getInverseWorldMatrix());
	1044	break;
	1045	case ACT_TRANSPOSE_WORLD_MATRIX:
	1046	_writeRawConstant(i->physicalIndex, source.getTransposeWorldMatrix());
	1047	break;
	1048	case ACT_INVERSE_TRANSPOSE_WORLD_MATRIX:
	1049	_writeRawConstant(i->physicalIndex, source.getInverseTransposeWorldMatrix());
	1050	break;
	1051
	1052	case ACT_WORLD_MATRIX_ARRAY_3x4:
	1053	// Loop over matrices
	1054	pMatrix = source.getWorldMatrixArray();
	1055	numMatrices = source.getWorldMatrixCount();
	1056	index = i->physicalIndex;
	1057	for (m = 0; m < numMatrices; ++m)
	1058	{
	1059	_writeRawConstants(index, (*pMatrix)[0], 12);
	1060	index += 12;
	1061	++pMatrix;
	1062	}
	1063
	1064	break;
	1065	case ACT_WORLD_MATRIX_ARRAY:
	1066	_writeRawConstant(i->physicalIndex, source.getWorldMatrixArray(),
	1067	source.getWorldMatrixCount());
	1068	break;
	1069	case ACT_VIEW_MATRIX:
	1070	_writeRawConstant(i->physicalIndex, source.getViewMatrix());
	1071	break;
	1072	case ACT_INVERSE_VIEW_MATRIX:
	1073	_writeRawConstant(i->physicalIndex, source.getInverseViewMatrix());
	1074	break;
	1075	case ACT_TRANSPOSE_VIEW_MATRIX:
	1076	_writeRawConstant(i->physicalIndex, source.getTransposeViewMatrix());
	1077	break;
	1078	case ACT_INVERSE_TRANSPOSE_VIEW_MATRIX:
	1079	_writeRawConstant(i->physicalIndex, source.getInverseTransposeViewMatrix());
	1080	break;
	1081
	1082	case ACT_PROJECTION_MATRIX:
	1083	_writeRawConstant(i->physicalIndex, source.getProjectionMatrix());
	1084	break;
	1085	case ACT_INVERSE_PROJECTION_MATRIX:
	1086	_writeRawConstant(i->physicalIndex, source.getInverseProjectionMatrix());
	1087	break;
	1088	case ACT_TRANSPOSE_PROJECTION_MATRIX:
	1089	_writeRawConstant(i->physicalIndex, source.getTransposeProjectionMatrix());
	1090	break;
	1091	case ACT_INVERSE_TRANSPOSE_PROJECTION_MATRIX:
	1092	_writeRawConstant(i->physicalIndex, source.getInverseTransposeProjectionMatrix());
	1093	break;
	1094
	1095	case ACT_VIEWPROJ_MATRIX:
	1096	_writeRawConstant(i->physicalIndex, source.getViewProjectionMatrix());
	1097	break;
	1098	case ACT_INVERSE_VIEWPROJ_MATRIX:
	1099	_writeRawConstant(i->physicalIndex, source.getInverseViewProjMatrix());
	1100	break;
	1101	case ACT_TRANSPOSE_VIEWPROJ_MATRIX:
	1102	_writeRawConstant(i->physicalIndex, source.getTransposeViewProjMatrix());
	1103	break;
	1104	case ACT_INVERSE_TRANSPOSE_VIEWPROJ_MATRIX:
	1105	_writeRawConstant(i->physicalIndex, source.getInverseTransposeViewProjMatrix());
	1106	break;
	1107
	1108	case ACT_WORLDVIEW_MATRIX:
	1109	_writeRawConstant(i->physicalIndex, source.getWorldViewMatrix());
	1110	break;
	1111	case ACT_INVERSE_WORLDVIEW_MATRIX:
	1112	_writeRawConstant(i->physicalIndex, source.getInverseWorldViewMatrix());
	1113	break;
	1114	case ACT_TRANSPOSE_WORLDVIEW_MATRIX:
	1115	_writeRawConstant(i->physicalIndex, source.getTransposeWorldViewMatrix());
	1116	break;
	1117	case ACT_INVERSE_TRANSPOSE_WORLDVIEW_MATRIX:
	1118	_writeRawConstant(i->physicalIndex, source.getInverseTransposeWorldViewMatrix());
	1119	break;
	1120
	1121	case ACT_WORLDVIEWPROJ_MATRIX:
	1122	_writeRawConstant(i->physicalIndex, source.getWorldViewProjMatrix());
	1123	break;
	1124	case ACT_INVERSE_WORLDVIEWPROJ_MATRIX:
	1125	_writeRawConstant(i->physicalIndex, source.getInverseWorldViewProjMatrix());
	1126	break;
	1127	case ACT_TRANSPOSE_WORLDVIEWPROJ_MATRIX:
	1128	_writeRawConstant(i->physicalIndex, source.getTransposeWorldViewProjMatrix());
	1129	break;
	1130	case ACT_INVERSE_TRANSPOSE_WORLDVIEWPROJ_MATRIX:
	1131	_writeRawConstant(i->physicalIndex, source.getInverseTransposeWorldViewProjMatrix());
	1132	break;
	1133
	1134	case ACT_RENDER_TARGET_FLIPPING:
	1135	_writeRawConstant(i->physicalIndex, source.getCurrentRenderTarget()->requiresTextureFlipping() ? -1.f : +1.f);
	1136	break;
	1137
	1138	// NB ambient light still here because it's not related to a specific light
	1139	case ACT_AMBIENT_LIGHT_COLOUR:
	1140	_writeRawConstant(i->physicalIndex, source.getAmbientLightColour(),
	1141	i->elementCount);
	1142	break;
	1143	case ACT_DERIVED_AMBIENT_LIGHT_COLOUR:
	1144	_writeRawConstant(i->physicalIndex, source.getDerivedAmbientLightColour(),
	1145	i->elementCount);
	1146	break;
	1147	case ACT_DERIVED_SCENE_COLOUR:
	1148	_writeRawConstant(i->physicalIndex, source.getDerivedSceneColour(),
	1149	i->elementCount);
	1150	break;
	1151
	1152	case ACT_FOG_COLOUR:
	1153	_writeRawConstant(i->physicalIndex, source.getFogColour());
	1154	break;
	1155	case ACT_FOG_PARAMS:
	1156	_writeRawConstant(i->physicalIndex, source.getFogParams(), i->elementCount);
	1157	break;
	1158
	1159	case ACT_SURFACE_AMBIENT_COLOUR:
	1160	_writeRawConstant(i->physicalIndex, source.getSurfaceAmbientColour(),
	1161	i->elementCount);
	1162	break;
	1163	case ACT_SURFACE_DIFFUSE_COLOUR:
	1164	_writeRawConstant(i->physicalIndex, source.getSurfaceDiffuseColour(),
	1165	i->elementCount);
	1166	break;
	1167	case ACT_SURFACE_SPECULAR_COLOUR:
	1168	_writeRawConstant(i->physicalIndex, source.getSurfaceSpecularColour(),
	1169	i->elementCount);
	1170	break;
	1171	case ACT_SURFACE_EMISSIVE_COLOUR:
	1172	_writeRawConstant(i->physicalIndex, source.getSurfaceEmissiveColour(),
	1173	i->elementCount);
	1174	break;
	1175	case ACT_SURFACE_SHININESS:
	1176	_writeRawConstant(i->physicalIndex, source.getSurfaceShininess());
	1177	break;
	1178
	1179	case ACT_CAMERA_POSITION:
	1180	_writeRawConstant(i->physicalIndex, source.getCameraPosition(), i->elementCount);
	1181	break;
	1182	case ACT_CAMERA_POSITION_OBJECT_SPACE:
	1183	_writeRawConstant(i->physicalIndex, source.getCameraPositionObjectSpace(), i->elementCount);
	1184	break;
	1185
	1186	case ACT_TIME:
	1187	_writeRawConstant(i->physicalIndex, source.getTime() * i->fData);
	1188	break;
	1189	case ACT_TIME_0_X:
	1190	_writeRawConstant(i->physicalIndex, source.getTime_0_X(i->fData));
	1191	break;
	1192	case ACT_COSTIME_0_X:
	1193	_writeRawConstant(i->physicalIndex, source.getCosTime_0_X(i->fData));
	1194	break;
	1195	case ACT_SINTIME_0_X:
	1196	_writeRawConstant(i->physicalIndex, source.getSinTime_0_X(i->fData));
	1197	break;
	1198	case ACT_TANTIME_0_X:
	1199	_writeRawConstant(i->physicalIndex, source.getTanTime_0_X(i->fData));
	1200	break;
	1201	case ACT_TIME_0_X_PACKED:
	1202	_writeRawConstant(i->physicalIndex, source.getTime_0_X_packed(i->fData), i->elementCount);
	1203	break;
	1204	case ACT_TIME_0_1:
	1205	_writeRawConstant(i->physicalIndex, source.getTime_0_1(i->fData));
	1206	break;
	1207	case ACT_COSTIME_0_1:
	1208	_writeRawConstant(i->physicalIndex, source.getCosTime_0_1(i->fData));
	1209	break;
	1210	case ACT_SINTIME_0_1:
	1211	_writeRawConstant(i->physicalIndex, source.getSinTime_0_1(i->fData));
	1212	break;
	1213	case ACT_TANTIME_0_1:
	1214	_writeRawConstant(i->physicalIndex, source.getTanTime_0_1(i->fData));
	1215	break;
	1216	case ACT_TIME_0_1_PACKED:
	1217	_writeRawConstant(i->physicalIndex, source.getTime_0_1_packed(i->fData), i->elementCount);
	1218	break;
	1219	case ACT_TIME_0_2PI:
	1220	_writeRawConstant(i->physicalIndex, source.getTime_0_2Pi(i->fData));
	1221	break;
	1222	case ACT_COSTIME_0_2PI:
	1223	_writeRawConstant(i->physicalIndex, source.getCosTime_0_2Pi(i->fData));
	1224	break;
	1225	case ACT_SINTIME_0_2PI:
	1226	_writeRawConstant(i->physicalIndex, source.getSinTime_0_2Pi(i->fData));
	1227	break;
	1228	case ACT_TANTIME_0_2PI:
	1229	_writeRawConstant(i->physicalIndex, source.getTanTime_0_2Pi(i->fData));
	1230	break;
	1231	case ACT_TIME_0_2PI_PACKED:
	1232	_writeRawConstant(i->physicalIndex, source.getTime_0_2Pi_packed(i->fData), i->elementCount);
	1233	break;
	1234	case ACT_FRAME_TIME:
	1235	_writeRawConstant(i->physicalIndex, source.getFrameTime() * i->fData);
	1236	break;
	1237	case ACT_FPS:
	1238	_writeRawConstant(i->physicalIndex, source.getFPS());
	1239	break;
	1240	case ACT_VIEWPORT_WIDTH:
	1241	_writeRawConstant(i->physicalIndex, source.getViewportWidth());
	1242	break;
	1243	case ACT_VIEWPORT_HEIGHT:
	1244	_writeRawConstant(i->physicalIndex, source.getViewportHeight());
	1245	break;
	1246	case ACT_INVERSE_VIEWPORT_WIDTH:
	1247	_writeRawConstant(i->physicalIndex, source.getInverseViewportWidth());
	1248	break;
	1249	case ACT_INVERSE_VIEWPORT_HEIGHT:
	1250	_writeRawConstant(i->physicalIndex, source.getInverseViewportHeight());
	1251	break;
	1252	case ACT_VIEWPORT_SIZE:
	1253	_writeRawConstant(i->physicalIndex, Vector4(
	1254	source.getViewportWidth(),
	1255	source.getViewportHeight(),
	1256	source.getInverseViewportWidth(),
	1257	source.getInverseViewportHeight()), i->elementCount);
	1258	break;
	1259	case ACT_TEXEL_OFFSETS:
	1260	{
	1261	RenderSystem* rsys = Root::getSingleton().getRenderSystem();
	1262	_writeRawConstant(i->physicalIndex, Vector4(
	1263	rsys->getHorizontalTexelOffset(),
	1264	rsys->getVerticalTexelOffset(),
	1265	rsys->getHorizontalTexelOffset() * source.getInverseViewportWidth(),
	1266	rsys->getVerticalTexelOffset() * source.getInverseViewportHeight()),
	1267	i->elementCount);
	1268	}
	1269	break;
	1270	case ACT_TEXTURE_SIZE:
	1271	_writeRawConstant(i->physicalIndex, source.getTextureSize(i->data), i->elementCount);
	1272	break;
	1273	case ACT_INVERSE_TEXTURE_SIZE:
	1274	_writeRawConstant(i->physicalIndex, source.getInverseTextureSize(i->data), i->elementCount);
	1275	break;
	1276	case ACT_PACKED_TEXTURE_SIZE:
	1277	_writeRawConstant(i->physicalIndex, source.getPackedTextureSize(i->data), i->elementCount);
	1278	break;
	1279	case ACT_SCENE_DEPTH_RANGE:
	1280	_writeRawConstant(i->physicalIndex, source.getSceneDepthRange(), i->elementCount);
	1281	break;
	1282	case ACT_VIEW_DIRECTION:
	1283	_writeRawConstant(i->physicalIndex, source.getViewDirection());
	1284	break;
	1285	case ACT_VIEW_SIDE_VECTOR:
	1286	_writeRawConstant(i->physicalIndex, source.getViewSideVector());
	1287	break;
	1288	case ACT_VIEW_UP_VECTOR:
	1289	_writeRawConstant(i->physicalIndex, source.getViewUpVector());
	1290	break;
	1291	case ACT_FOV:
	1292	_writeRawConstant(i->physicalIndex, source.getFOV());
	1293	break;
	1294	case ACT_NEAR_CLIP_DISTANCE:
	1295	_writeRawConstant(i->physicalIndex, source.getNearClipDistance());
	1296	break;
	1297	case ACT_FAR_CLIP_DISTANCE:
	1298	_writeRawConstant(i->physicalIndex, source.getFarClipDistance());
	1299	break;
	1300	case ACT_PASS_NUMBER:
	1301	_writeRawConstant(i->physicalIndex, (float)source.getPassNumber());
	1302	break;
	1303	case ACT_PASS_ITERATION_NUMBER:
	1304	_writeRawConstant(i->physicalIndex, 0.0f);
	1305	mActivePassIterationIndex = i->physicalIndex;
	1306	break;
	1307	case ACT_CUSTOM:
	1308	case ACT_ANIMATION_PARAMETRIC:
	1309	source.getCurrentRenderable()->_updateCustomGpuParameter(*i, this);
	1310	break;
	1311	default:
	1312	break;
	1313	}
	1314	}
	1315	}
	1316	//-----------------------------------------------------------------------------
	1317	void GpuProgramParameters::_updateAutoParamsLightsOnly(const AutoParamDataSource& source)
	1318	{
	1319	if (!hasAutoConstants()) return; // abort early if no autos
	1320	Vector3 vec3;
	1321	Vector4 vec4;
	1322	Matrix3 m3;
	1323
	1324	AutoConstantList::const_iterator i, iend;
	1325	iend = mAutoConstants.end();
	1326	for (i = mAutoConstants.begin(); i != iend; ++i)
	1327	{
	1328	switch(i->paramType)
	1329	{
	1330	case ACT_LIGHT_DIFFUSE_COLOUR:
	1331	_writeRawConstant(i->physicalIndex, source.getLight(i->data).getDiffuseColour(), i->elementCount);
	1332	break;
	1333	case ACT_LIGHT_SPECULAR_COLOUR:
	1334	_writeRawConstant(i->physicalIndex, source.getLight(i->data).getSpecularColour(), i->elementCount);
	1335	break;
	1336	case ACT_LIGHT_POSITION:
	1337	// Get as 4D vector, works for directional lights too
	1338	// Use element count in case uniform slot is smaller
	1339	_writeRawConstant(i->physicalIndex,
	1340	source.getLight(i->data).getAs4DVector(), i->elementCount);
	1341	break;
	1342	case ACT_LIGHT_DIRECTION:
	1343	vec3 = source.getLight(i->data).getDerivedDirection();
	1344	// Set as 4D vector for compatibility
	1345	// Use element count in case uniform slot is smaller
	1346	_writeRawConstant(i->physicalIndex, Vector4(vec3.x, vec3.y, vec3.z, 1.0f), i->elementCount);
	1347	break;
	1348	case ACT_LIGHT_POSITION_OBJECT_SPACE:
	1349	_writeRawConstant(i->physicalIndex,
	1350	source.getInverseWorldMatrix().transformAffine(
	1351	source.getLight(i->data).getAs4DVector()),
	1352	i->elementCount);
	1353	break;
	1354	case ACT_LIGHT_DIRECTION_OBJECT_SPACE:
	1355	// We need the inverse of the inverse transpose
	1356	source.getInverseTransposeWorldMatrix().inverse().extract3x3Matrix(m3);
	1357	vec3 = m3 * source.getLight(i->data).getDerivedDirection();
	1358	vec3.normalise();
	1359	// Set as 4D vector for compatibility
	1360	_writeRawConstant(i->physicalIndex, Vector4(vec3.x, vec3.y, vec3.z, 0.0f), i->elementCount);
	1361	break;
	1362	case ACT_LIGHT_POSITION_VIEW_SPACE:
	1363	_writeRawConstant(i->physicalIndex,
	1364	source.getViewMatrix().transformAffine(source.getLight(i->data).getAs4DVector()), i->elementCount);
	1365	break;
	1366	case ACT_LIGHT_DIRECTION_VIEW_SPACE:
	1367	source.getInverseTransposeViewMatrix().extract3x3Matrix(m3);
	1368	// inverse transpose in case of scaling
	1369	vec3 = m3 * source.getLight(i->data).getDerivedDirection();
	1370	vec3.normalise();
	1371	// Set as 4D vector for compatibility
	1372	_writeRawConstant(i->physicalIndex, Vector4(vec3.x, vec3.y, vec3.z, 0.0f),i->elementCount);
	1373	break;
	1374	case ACT_LIGHT_DISTANCE_OBJECT_SPACE:
	1375	vec3 = source.getInverseWorldMatrix().transformAffine(source.getLight(i->data).getDerivedPosition());
	1376	_writeRawConstant(i->physicalIndex, vec3.length());
	1377	break;
	1378	case ACT_SHADOW_EXTRUSION_DISTANCE:
	1379	_writeRawConstant(i->physicalIndex, source.getShadowExtrusionDistance());
	1380	break;
	1381	case ACT_SHADOW_SCENE_DEPTH_RANGE:
	1382	_writeRawConstant(i->physicalIndex, source.getShadowSceneDepthRange(i->data));
	1383	break;
	1384	case ACT_LIGHT_POWER_SCALE:
	1385	_writeRawConstant(i->physicalIndex, source.getLight(i->data).getPowerScale());
	1386	break;
	1387	case ACT_LIGHT_ATTENUATION:
	1388	{
	1389	// range, const, linear, quad
	1390	const Light& l = source.getLight(i->data);
	1391	vec4.x = l.getAttenuationRange();
	1392	vec4.y = l.getAttenuationConstant();
	1393	vec4.z = l.getAttenuationLinear();
	1394	vec4.w = l.getAttenuationQuadric();
	1395	_writeRawConstant(i->physicalIndex, vec4, i->elementCount);
	1396	break;
	1397	}
	1398	case ACT_SPOTLIGHT_PARAMS:
	1399	{
	1400	// inner, outer, fallof, isSpot
	1401	const Light& l = source.getLight(i->data);
	1402	if (l.getType() == Light::LT_SPOTLIGHT)
	1403	{
	1404	vec4.x = Math::Cos(l.getSpotlightInnerAngle().valueRadians() * 0.5);
	1405	vec4.y = Math::Cos(l.getSpotlightOuterAngle().valueRadians() * 0.5);
	1406	vec4.z = l.getSpotlightFalloff();
	1407	vec4.w = 1.0f;
	1408	}
	1409	else
	1410	{
	1411	// Use safe values which result in no change to point & dir light calcs
	1412	// The spot factor applied to the usual lighting calc is
	1413	// pow((dot(spotDir, lightDir) - y) / (x - y), z)
	1414	// Therefore if we set z to 0.0f then the factor will always be 1
	1415	// since pow(anything, 0) == 1
	1416	// However we also need to ensure we don't overflow because of the division
	1417	// therefore set x = 1 and y = 0 so divisor doesn't change scale
	1418	vec4.x = 1.0f;
	1419	vec4.y = 0.0f;
	1420	vec4.z = 0.0f; // since the main op is pow(.., vec4.z), this will result in 1.0
	1421	vec4.w = 1.0f;
	1422	}
	1423	_writeRawConstant(i->physicalIndex, vec4, i->elementCount);
	1424	break;
	1425	}
	1426	case ACT_LIGHT_DIFFUSE_COLOUR_ARRAY:
	1427	for (size_t l = 0; l < i->data; ++l)
	1428	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1429	source.getLight(l).getDiffuseColour(), i->elementCount);
	1430	break;
	1431
	1432	case ACT_LIGHT_SPECULAR_COLOUR_ARRAY:
	1433	for (size_t l = 0; l < i->data; ++l)
	1434	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1435	source.getLight(l).getSpecularColour(), i->elementCount);
	1436	break;
	1437
	1438	case ACT_LIGHT_POSITION_ARRAY:
	1439	// Get as 4D vector, works for directional lights too
	1440	for (size_t l = 0; l < i->data; ++l)
	1441	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1442	source.getLight(l).getAs4DVector(), i->elementCount);
	1443	break;
	1444
	1445	case ACT_LIGHT_DIRECTION_ARRAY:
	1446	for (size_t l = 0; l < i->data; ++l)
	1447	{
	1448	vec3 = source.getLight(l).getDerivedDirection();
	1449	// Set as 4D vector for compatibility
	1450	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1451	Vector4(vec3.x, vec3.y, vec3.z, 0.0f), i->elementCount);
	1452	}
	1453	break;
	1454
	1455	case ACT_LIGHT_POSITION_OBJECT_SPACE_ARRAY:
	1456	for (size_t l = 0; l < i->data; ++l)
	1457	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1458	source.getInverseWorldMatrix().transformAffine(
	1459	source.getLight(l).getAs4DVector()),
	1460	i->elementCount);
	1461	break;
	1462
	1463	case ACT_LIGHT_DIRECTION_OBJECT_SPACE_ARRAY:
	1464	// We need the inverse of the inverse transpose
	1465	source.getInverseTransposeWorldMatrix().inverse().extract3x3Matrix(m3);
	1466	for (size_t l = 0; l < i->data; ++l)
	1467	{
	1468	vec3 = m3 * source.getLight(l).getDerivedDirection();
	1469	vec3.normalise();
	1470	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1471	Vector4(vec3.x, vec3.y, vec3.z, 0.0f), i->elementCount);
	1472	}
	1473	break;
	1474
	1475	case ACT_LIGHT_POSITION_VIEW_SPACE_ARRAY:
	1476	for (size_t l = 0; l < i->data; ++l)
	1477	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1478	source.getViewMatrix().transformAffine(
	1479	source.getLight(l).getAs4DVector()),
	1480	i->elementCount);
	1481	break;
	1482
	1483	case ACT_LIGHT_DIRECTION_VIEW_SPACE_ARRAY:
	1484	source.getInverseTransposeViewMatrix().extract3x3Matrix(m3);
	1485	for (size_t l = 0; l < i->data; ++l)
	1486	{
	1487	vec3 = m3 * source.getLight(l).getDerivedDirection();
	1488	vec3.normalise();
	1489	// Set as 4D vector for compatibility
	1490	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1491	Vector4(vec3.x, vec3.y, vec3.z, 0.0f), i->elementCount);
	1492	}
	1493	break;
	1494
	1495	case ACT_LIGHT_DISTANCE_OBJECT_SPACE_ARRAY:
	1496	for (size_t l = 0; l < i->data; ++l)
	1497	{
	1498	vec3 = source.getInverseWorldMatrix().transformAffine(source.getLight(l).getDerivedPosition());
	1499	_writeRawConstant(i->physicalIndex + l*i->elementCount, vec3.length());
	1500	}
	1501	break;
	1502
	1503	case ACT_LIGHT_POWER_SCALE_ARRAY:
	1504	for (size_t l = 0; l < i->data; ++l)
	1505	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1506	source.getLight(l).getPowerScale());
	1507	break;
	1508
	1509	case ACT_LIGHT_ATTENUATION_ARRAY:
	1510	for (size_t l = 0; l < i->data; ++l)
	1511	{
	1512	// range, const, linear, quad
	1513	const Light& light = source.getLight(l);
	1514	vec4.x = light.getAttenuationRange();
	1515	vec4.y = light.getAttenuationConstant();
	1516	vec4.z = light.getAttenuationLinear();
	1517	vec4.w = light.getAttenuationQuadric();
	1518	_writeRawConstant(i->physicalIndex + l*i->elementCount, vec4,
	1519	i->elementCount);
	1520	}
	1521	break;
	1522	case ACT_SPOTLIGHT_PARAMS_ARRAY:
	1523	{
	1524	for (size_t l = 0 ; l < i->data; ++l)
	1525	{
	1526	// inner, outer, fallof, isSpot
	1527	const Light& light = source.getLight(l);
	1528	if (light.getType() == Light::LT_SPOTLIGHT)
	1529	{
	1530	vec4.x = Math::Cos(light.getSpotlightInnerAngle().valueRadians() * 0.5);
	1531	vec4.y = Math::Cos(light.getSpotlightOuterAngle().valueRadians() * 0.5);
	1532	vec4.z = light.getSpotlightFalloff();
	1533	vec4.w = 1.0f;
	1534	}
	1535	else
	1536	{
	1537	// Set angles to full circle for generality
	1538	vec4.x = vec4.y = 1.0f;
	1539	// reduce outer angle slightly to avoid divide by zero
	1540	vec4.y -= 1e-5f;
	1541	vec4.z = vec4.w = 0.0f;
	1542	}
	1543	_writeRawConstant(i->physicalIndex + l*i->elementCount, vec4,
	1544	i->elementCount);
	1545
	1546	}
	1547	break;
	1548	}
	1549	case ACT_DERIVED_LIGHT_DIFFUSE_COLOUR:
	1550	_writeRawConstant(i->physicalIndex,
	1551	source.getLight(i->data).getDiffuseColour() * source.getSurfaceDiffuseColour(),
	1552	i->elementCount);
	1553	break;
	1554	case ACT_DERIVED_LIGHT_SPECULAR_COLOUR:
	1555	_writeRawConstant(i->physicalIndex,
	1556	source.getLight(i->data).getSpecularColour() * source.getSurfaceSpecularColour(),
	1557	i->elementCount);
	1558	break;
	1559	case ACT_DERIVED_LIGHT_DIFFUSE_COLOUR_ARRAY:
	1560	for (size_t l = 0; l < i->data; ++l)
	1561	{
	1562	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1563	source.getLight(l).getDiffuseColour() * source.getSurfaceDiffuseColour(),
	1564	i->elementCount);
	1565	}
	1566	break;
	1567	case ACT_DERIVED_LIGHT_SPECULAR_COLOUR_ARRAY:
	1568	for (size_t l = 0; l < i->data; ++l)
	1569	{
	1570	_writeRawConstant(i->physicalIndex + l*i->elementCount,
	1571	source.getLight(l).getSpecularColour() * source.getSurfaceSpecularColour(),
	1572	i->elementCount);
	1573	}
	1574	break;
	1575	case ACT_TEXTURE_VIEWPROJ_MATRIX:
	1576	// can also be updated in lights
	1577	_writeRawConstant(i->physicalIndex, source.getTextureViewProjMatrix(i->data));
	1578	break;
	1579	default:
	1580	// do nothing
	1581	break;
	1582	}
	1583	}
	1584	}
	1585	//---------------------------------------------------------------------------
	1586	void GpuProgramParameters::setNamedConstant(const String& name, Real val)
	1587	{
	1588	// look up, and throw an exception if we're not ignoring missing
	1589	const GpuConstantDefinition* def =
	1590	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1591	if (def)
	1592	_writeRawConstant(def->physicalIndex, val);
	1593	}
	1594	//---------------------------------------------------------------------------
	1595	void GpuProgramParameters::setNamedConstant(const String& name, int val)
	1596	{
	1597	// look up, and throw an exception if we're not ignoring missing
	1598	const GpuConstantDefinition* def =
	1599	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1600	if (def)
	1601	_writeRawConstant(def->physicalIndex, val);
	1602	}
	1603	//---------------------------------------------------------------------------
	1604	void GpuProgramParameters::setNamedConstant(const String& name, const Vector4& vec)
	1605	{
	1606	// look up, and throw an exception if we're not ignoring missing
	1607	const GpuConstantDefinition* def =
	1608	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1609	if (def)
	1610	_writeRawConstant(def->physicalIndex, vec, def->elementSize);
	1611	}
	1612	//---------------------------------------------------------------------------
	1613	void GpuProgramParameters::setNamedConstant(const String& name, const Vector3& vec)
	1614	{
	1615	// look up, and throw an exception if we're not ignoring missing
	1616	const GpuConstantDefinition* def =
	1617	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1618	if (def)
	1619	_writeRawConstant(def->physicalIndex, vec);
	1620	}
	1621	//---------------------------------------------------------------------------
	1622	void GpuProgramParameters::setNamedConstant(const String& name, const Matrix4& m)
	1623	{
	1624	// look up, and throw an exception if we're not ignoring missing
	1625	const GpuConstantDefinition* def =
	1626	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1627	if (def)
	1628	_writeRawConstant(def->physicalIndex, m);
	1629	}
	1630	//---------------------------------------------------------------------------
	1631	void GpuProgramParameters::setNamedConstant(const String& name, const Matrix4* m,
	1632	size_t numEntries)
	1633	{
	1634	// look up, and throw an exception if we're not ignoring missing
	1635	const GpuConstantDefinition* def =
	1636	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1637	if (def)
	1638	_writeRawConstant(def->physicalIndex, m, numEntries);
	1639	}
	1640	//---------------------------------------------------------------------------
	1641	void GpuProgramParameters::setNamedConstant(const String& name,
	1642	const float *val, size_t count, size_t multiple)
	1643	{
	1644	size_t rawCount = count * multiple;
	1645	// look up, and throw an exception if we're not ignoring missing
	1646	const GpuConstantDefinition* def =
	1647	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1648	if (def)
	1649	_writeRawConstants(def->physicalIndex, val, rawCount);
	1650	}
	1651	//---------------------------------------------------------------------------
	1652	void GpuProgramParameters::setNamedConstant(const String& name,
	1653	const double *val, size_t count, size_t multiple)
	1654	{
	1655	size_t rawCount = count * multiple;
	1656	// look up, and throw an exception if we're not ignoring missing
	1657	const GpuConstantDefinition* def =
	1658	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1659	if (def)
	1660	_writeRawConstants(def->physicalIndex, val, rawCount);
	1661	}
	1662	//---------------------------------------------------------------------------
	1663	void GpuProgramParameters::setNamedConstant(const String& name, const ColourValue& colour)
	1664	{
	1665	// look up, and throw an exception if we're not ignoring missing
	1666	const GpuConstantDefinition* def =
	1667	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1668	if (def)
	1669	_writeRawConstant(def->physicalIndex, colour, def->elementSize);
	1670	}
	1671	//---------------------------------------------------------------------------
	1672	void GpuProgramParameters::setNamedConstant(const String& name,
	1673	const int *val, size_t count, size_t multiple)
	1674	{
	1675	size_t rawCount = count * multiple;
	1676	// look up, and throw an exception if we're not ignoring missing
	1677	const GpuConstantDefinition* def =
	1678	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1679	if (def)
	1680	_writeRawConstants(def->physicalIndex, val, rawCount);
	1681	}
	1682	//---------------------------------------------------------------------------
	1683	void GpuProgramParameters::setNamedAutoConstant(const String& name,
	1684	AutoConstantType acType, size_t extraInfo)
	1685	{
	1686	// look up, and throw an exception if we're not ignoring missing
	1687	const GpuConstantDefinition* def =
	1688	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1689	if (def)
	1690	_setRawAutoConstant(def->physicalIndex, acType, extraInfo, def->elementSize);
	1691
	1692	}
	1693	//---------------------------------------------------------------------------
	1694	void GpuProgramParameters::setNamedAutoConstantReal(const String& name,
	1695	AutoConstantType acType, Real rData)
	1696	{
	1697	// look up, and throw an exception if we're not ignoring missing
	1698	const GpuConstantDefinition* def =
	1699	_findNamedConstantDefinition(name, !mIgnoreMissingParams);
	1700	if (def)
	1701	_setRawAutoConstantReal(def->physicalIndex, acType, rData, def->elementSize);
	1702
	1703	}
	1704	//---------------------------------------------------------------------------
	1705	void GpuProgramParameters::setConstantFromTime(size_t index, Real factor)
	1706	{
	1707	setAutoConstantReal(index, ACT_TIME, factor);
	1708	}
	1709	//---------------------------------------------------------------------------
	1710	void GpuProgramParameters::setNamedConstantFromTime(const String& name, Real factor)
	1711	{
	1712	setNamedAutoConstantReal(name, ACT_TIME, factor);
	1713	}
	1714	//---------------------------------------------------------------------------
	1715	GpuProgramParameters::AutoConstantEntry* GpuProgramParameters::getAutoConstantEntry(const size_t index)
	1716	{
	1717	if (index < mAutoConstants.size())
	1718	{
	1719	return &(mAutoConstants[index]);
	1720	}
	1721	else
	1722	{
	1723	return NULL;
	1724	}
	1725	}
	1726	//---------------------------------------------------------------------------
	1727	const GpuProgramParameters::AutoConstantEntry*
	1728	GpuProgramParameters::findFloatAutoConstantEntry(size_t logicalIndex)
	1729	{
	1730	if (!mFloatLogicalToPhysical)
	1731	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	1732	"This is not a low-level parameter parameter object",
	1733	"GpuProgramParameters::findFloatAutoConstantEntry");
	1734
	1735	return _findRawAutoConstantEntryFloat(
	1736	_getFloatConstantPhysicalIndex(logicalIndex, 0));
	1737
	1738	}
	1739	//---------------------------------------------------------------------------
	1740	const GpuProgramParameters::AutoConstantEntry*
	1741	GpuProgramParameters::findIntAutoConstantEntry(size_t logicalIndex)
	1742	{
	1743	if (!mIntLogicalToPhysical)
	1744	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	1745	"This is not a low-level parameter parameter object",
	1746	"GpuProgramParameters::findIntAutoConstantEntry");
	1747
	1748	return _findRawAutoConstantEntryInt(
	1749	_getIntConstantPhysicalIndex(logicalIndex, 0));
	1750
	1751
	1752	}
	1753	//---------------------------------------------------------------------------
	1754	const GpuProgramParameters::AutoConstantEntry*
	1755	GpuProgramParameters::findAutoConstantEntry(const String& paramName)
	1756	{
	1757	if (!mNamedConstants)
	1758	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
	1759	"This params object is not based on a program with named parameters.",
	1760	"GpuProgramParameters::findAutoConstantEntry");
	1761
	1762	const GpuConstantDefinition& def = getConstantDefinition(paramName);
	1763	if (def.isFloat())
	1764	{
	1765	return _findRawAutoConstantEntryFloat(def.physicalIndex);
	1766	}
	1767	else
	1768	{
	1769	return _findRawAutoConstantEntryInt(def.physicalIndex);
	1770	}
	1771	}
	1772	//---------------------------------------------------------------------------
	1773	const GpuProgramParameters::AutoConstantEntry*
	1774	GpuProgramParameters::_findRawAutoConstantEntryFloat(size_t physicalIndex)
	1775	{
	1776	for(AutoConstantList::iterator i = mAutoConstants.begin();
	1777	i != mAutoConstants.end(); ++i)
	1778	{
	1779	AutoConstantEntry& ac = *i;
	1780	// should check that auto is float and not int so that physicalIndex
	1781	// doesn't have any ambiguity
	1782	// However, all autos are float I think so no need
	1783	if (ac.physicalIndex == physicalIndex)
	1784	return &ac;
	1785	}
	1786
	1787	return 0;
	1788
	1789	}
	1790	//---------------------------------------------------------------------------
	1791	const GpuProgramParameters::AutoConstantEntry*
	1792	GpuProgramParameters::_findRawAutoConstantEntryInt(size_t physicalIndex)
	1793	{
	1794	// No autos are float?
	1795	return 0;
	1796	}
	1797	//---------------------------------------------------------------------------
	1798	void GpuProgramParameters::copyConstantsFrom(const GpuProgramParameters& source)
	1799	{
	1800	// Pull buffers & auto constant list over directly
	1801	mFloatConstants = source.getFloatConstantList();
	1802	mIntConstants = source.getIntConstantList();
	1803	mAutoConstants = source.getAutoConstantList();
	1804	}
	1805	//-----------------------------------------------------------------------
	1806	const GpuProgramParameters::AutoConstantDefinition*
	1807	GpuProgramParameters::getAutoConstantDefinition(const String& name)
	1808	{
	1809	// find a constant definition that matches name by iterating through the
	1810	// constant definition array
	1811	bool nameFound = false;
	1812	size_t i = 0;
	1813	const size_t numDefs = getNumAutoConstantDefinitions();
	1814	while (!nameFound && (i < numDefs))
	1815	{
	1816	if (name == AutoConstantDictionary[i].name)
	1817	nameFound = true;
	1818	else
	1819	++i;
	1820	}
	1821
	1822	if (nameFound)
	1823	return &AutoConstantDictionary[i];
	1824	else
	1825	return 0;
	1826	}
	1827
	1828	//-----------------------------------------------------------------------
	1829	const GpuProgramParameters::AutoConstantDefinition*
	1830	GpuProgramParameters::getAutoConstantDefinition(const size_t idx)
	1831	{
	1832
	1833	if (idx < getNumAutoConstantDefinitions())
	1834	{
	1835	// verify index is equal to acType
	1836	// if they are not equal then the dictionary was not setup properly
	1837	assert(idx == static_cast<size_t>(AutoConstantDictionary[idx].acType));
	1838	return &AutoConstantDictionary[idx];
	1839	}
	1840	else
	1841	return 0;
	1842	}
	1843	//-----------------------------------------------------------------------
	1844	size_t GpuProgramParameters::getNumAutoConstantDefinitions(void)
	1845	{
	1846	return sizeof(AutoConstantDictionary)/sizeof(AutoConstantDefinition);
	1847	}
	1848
	1849	//-----------------------------------------------------------------------
	1850	void GpuProgramParameters::incPassIterationNumber(void)
	1851	{
	1852	if (mActivePassIterationIndex != std::numeric_limits<size_t>::max())
	1853	{
	1854	// This is a physical index
	1855	++mFloatConstants[mActivePassIterationIndex];
	1856	}
	1857	}
	1858
	1859	//-----------------------------------------------------------------------
	1860	//-----------------------------------------------------------------------
	1861	String GpuProgram::CmdType::doGet(const void* target) const
	1862	{
	1863	const GpuProgram* t = static_cast<const GpuProgram*>(target);
	1864	if (t->getType() == GPT_VERTEX_PROGRAM)
	1865	{
	1866	return "vertex_program";
	1867	}
	1868	else
	1869	{
	1870	return "fragment_program";
	1871	}
	1872	}
	1873	void GpuProgram::CmdType::doSet(void* target, const String& val)
	1874	{
	1875	GpuProgram* t = static_cast<GpuProgram*>(target);
	1876	if (val == "vertex_program")
	1877	{
	1878	t->setType(GPT_VERTEX_PROGRAM);
	1879	}
	1880	else
	1881	{
	1882	t->setType(GPT_FRAGMENT_PROGRAM);
	1883	}
	1884	}
	1885	//-----------------------------------------------------------------------
	1886	String GpuProgram::CmdSyntax::doGet(const void* target) const
	1887	{
	1888	const GpuProgram* t = static_cast<const GpuProgram*>(target);
	1889	return t->getSyntaxCode();
	1890	}
	1891	void GpuProgram::CmdSyntax::doSet(void* target, const String& val)
	1892	{
	1893	GpuProgram* t = static_cast<GpuProgram*>(target);
	1894	t->setSyntaxCode(val);
	1895	}
	1896	//-----------------------------------------------------------------------
	1897	String GpuProgram::CmdSkeletal::doGet(const void* target) const
	1898	{
	1899	const GpuProgram* t = static_cast<const GpuProgram*>(target);
	1900	return StringConverter::toString(t->isSkeletalAnimationIncluded());
	1901	}
	1902	void GpuProgram::CmdSkeletal::doSet(void* target, const String& val)
	1903	{
	1904	GpuProgram* t = static_cast<GpuProgram*>(target);
	1905	t->setSkeletalAnimationIncluded(StringConverter::parseBool(val));
	1906	}
	1907	//-----------------------------------------------------------------------
	1908	String GpuProgram::CmdMorph::doGet(const void* target) const
	1909	{
	1910	const GpuProgram* t = static_cast<const GpuProgram*>(target);
	1911	return StringConverter::toString(t->isMorphAnimationIncluded());
	1912	}
	1913	void GpuProgram::CmdMorph::doSet(void* target, const String& val)
	1914	{
	1915	GpuProgram* t = static_cast<GpuProgram*>(target);
	1916	t->setMorphAnimationIncluded(StringConverter::parseBool(val));
	1917	}
	1918	//-----------------------------------------------------------------------
	1919	String GpuProgram::CmdPose::doGet(const void* target) const
	1920	{
	1921	const GpuProgram* t = static_cast<const GpuProgram*>(target);
	1922	return StringConverter::toString(t->getNumberOfPosesIncluded());
	1923	}
	1924	void GpuProgram::CmdPose::doSet(void* target, const String& val)
	1925	{
	1926	GpuProgram* t = static_cast<GpuProgram*>(target);
	1927	t->setPoseAnimationIncluded(StringConverter::parseUnsignedInt(val));
	1928	}
	1929	//-----------------------------------------------------------------------
	1930	String GpuProgram::CmdVTF::doGet(const void* target) const
	1931	{
	1932	const GpuProgram* t = static_cast<const GpuProgram*>(target);
	1933	return StringConverter::toString(t->isVertexTextureFetchRequired());
	1934	}
	1935	void GpuProgram::CmdVTF::doSet(void* target, const String& val)
	1936	{
	1937	GpuProgram* t = static_cast<GpuProgram*>(target);
	1938	t->setVertexTextureFetchRequired(StringConverter::parseBool(val));
	1939	}
	1940	//-----------------------------------------------------------------------
	1941	GpuProgramPtr& GpuProgramPtr::operator=(const HighLevelGpuProgramPtr& r)
	1942	{
	1943	// Can assign direct
	1944	if (pRep == r.getPointer())
	1945	return *this;
	1946	release();
	1947	// lock & copy other mutex pointer
	1948	OGRE_MUTEX_CONDITIONAL(r.OGRE_AUTO_MUTEX_NAME)
	1949	{
	1950	OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
	1951	OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
	1952	pRep = r.getPointer();
	1953	pUseCount = r.useCountPointer();
	1954	if (pUseCount)
	1955	{
	1956	++(*pUseCount);
	1957	}
	1958	}
	1959	else
	1960	{
	1961	// RHS must be a null pointer
	1962	assert(r.isNull() && "RHS must be null if it has no mutex!");
	1963	setNull();
	1964	}
	1965	return *this;
	1966	}
	1967
	1968	}

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source: downloads/OgreMain/src/OgreGpuProgram.cpp @ 9

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