summaryrefslogtreecommitdiff
path: root/indra/newview/llviewershadermgr.h
blob: 8b4a19f8c3b764802a664532ce96ef759c18ac7b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
/** 
 * @file llviewershadermgr.h
 * @brief Viewer Shader Manager
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_VIEWER_SHADER_MGR_H
#define LL_VIEWER_SHADER_MGR_H

#include "llshadermgr.h"
#include "llmaterial.h"

#define LL_DEFERRED_MULTI_LIGHT_COUNT 16

class LLViewerShaderMgr: public LLShaderMgr
{
public:
	static BOOL sInitialized;
	static bool sSkipReload;

	LLViewerShaderMgr();
	/* virtual */ ~LLViewerShaderMgr();

	// singleton pattern implementation
	static LLViewerShaderMgr * instance();
	static void releaseInstance();

	void initAttribsAndUniforms(void);
	void setShaders();
	void unloadShaders();
    S32  getShaderLevel(S32 type);

    // loadBasicShaders in case of a failure returns
    // name of a file error happened at, otherwise
    // returns an empty string
    std::string loadBasicShaders();
	BOOL loadShadersEffects();
	BOOL loadShadersDeferred();
	BOOL loadShadersObject();
	BOOL loadShadersAvatar();
	BOOL loadShadersWater();
	BOOL loadShadersInterface();

	std::vector<S32> mShaderLevel;
	S32	mMaxAvatarShaderLevel;

	enum EShaderClass
	{
		SHADER_LIGHTING,
		SHADER_OBJECT,
		SHADER_AVATAR,
		SHADER_ENVIRONMENT,
		SHADER_INTERFACE,
		SHADER_EFFECT,
		SHADER_WINDLIGHT,
		SHADER_WATER,
		SHADER_DEFERRED,
		SHADER_COUNT
	};

	// simple model of forward iterator
	// http://www.sgi.com/tech/stl/ForwardIterator.html
	class shader_iter
	{
	private:
		friend bool operator == (shader_iter const & a, shader_iter const & b);
		friend bool operator != (shader_iter const & a, shader_iter const & b);

		typedef std::vector<LLGLSLShader *>::const_iterator base_iter_t;
	public:
		shader_iter()
		{
		}

		shader_iter(base_iter_t iter) : mIter(iter)
		{
		}

		LLGLSLShader & operator * () const
		{
			return **mIter;
		}

		LLGLSLShader * operator -> () const
		{
			return *mIter;
		}

		shader_iter & operator++ ()
		{
			++mIter;
			return *this;
		}

		shader_iter operator++ (int)
		{
			return mIter++;
		}

	private:
		base_iter_t mIter;
	};

	shader_iter beginShaders() const;
	shader_iter endShaders() const;

	/* virtual */ std::string getShaderDirPrefix(void);

	/* virtual */ void updateShaderUniforms(LLGLSLShader * shader);

private:
	// the list of shaders we need to propagate parameters to.
	std::vector<LLGLSLShader *> mShaderList;

}; //LLViewerShaderMgr

inline bool operator == (LLViewerShaderMgr::shader_iter const & a, LLViewerShaderMgr::shader_iter const & b)
{
	return a.mIter == b.mIter;
}

inline bool operator != (LLViewerShaderMgr::shader_iter const & a, LLViewerShaderMgr::shader_iter const & b)
{
	return a.mIter != b.mIter;
}

extern LLVector4			gShinyOrigin;

//utility shaders
extern LLGLSLShader			gOcclusionProgram;
extern LLGLSLShader			gOcclusionCubeProgram;
extern LLGLSLShader			gGlowCombineProgram;
extern LLGLSLShader			gReflectionMipProgram;
extern LLGLSLShader         gGaussianProgram;
extern LLGLSLShader         gRadianceGenProgram;
extern LLGLSLShader         gIrradianceGenProgram;
extern LLGLSLShader			gGlowCombineFXAAProgram;
extern LLGLSLShader			gDebugProgram;
extern LLGLSLShader			gClipProgram;
extern LLGLSLShader			gBenchmarkProgram;
extern LLGLSLShader         gReflectionProbeDisplayProgram;
extern LLGLSLShader         gCopyProgram;
extern LLGLSLShader         gCopyDepthProgram;

//output tex0[tc0] - tex1[tc1]
extern LLGLSLShader			gTwoTextureCompareProgram;
//discard some fragments based on user-set color tolerance
extern LLGLSLShader			gOneTextureFilterProgram;
						

//object shaders
extern LLGLSLShader		gObjectPreviewProgram;
extern LLGLSLShader        gPhysicsPreviewProgram;
extern LLGLSLShader        gSkinnedObjectFullbrightAlphaMaskProgram;
extern LLGLSLShader		gObjectBumpProgram;
extern LLGLSLShader        gSkinnedObjectBumpProgram;
extern LLGLSLShader		gObjectAlphaMaskNoColorProgram;
extern LLGLSLShader		gObjectAlphaMaskNoColorWaterProgram;

//environment shaders
extern LLGLSLShader			gWaterProgram;
extern LLGLSLShader			gWaterEdgeProgram;
extern LLGLSLShader			gUnderWaterProgram;
extern LLGLSLShader			gGlowProgram;
extern LLGLSLShader			gGlowExtractProgram;

//interface shaders
extern LLGLSLShader			gHighlightProgram;
extern LLGLSLShader			gHighlightNormalProgram;
extern LLGLSLShader			gHighlightSpecularProgram;

extern LLGLSLShader			gDeferredHighlightProgram;

extern LLGLSLShader			gPathfindingProgram;
extern LLGLSLShader			gPathfindingNoNormalsProgram;

// avatar shader handles
extern LLGLSLShader			gAvatarProgram;
extern LLGLSLShader			gAvatarEyeballProgram;
extern LLGLSLShader			gImpostorProgram;

// Post Process Shaders
extern LLGLSLShader         gPostScreenSpaceReflectionProgram;

// Deferred rendering shaders
extern LLGLSLShader			gDeferredImpostorProgram;
extern LLGLSLShader			gDeferredDiffuseProgram;
extern LLGLSLShader			gDeferredDiffuseAlphaMaskProgram;
extern LLGLSLShader			gDeferredNonIndexedDiffuseAlphaMaskProgram;
extern LLGLSLShader			gDeferredNonIndexedDiffuseAlphaMaskNoColorProgram;
extern LLGLSLShader			gDeferredNonIndexedDiffuseProgram;
extern LLGLSLShader			gDeferredBumpProgram;
extern LLGLSLShader			gDeferredTerrainProgram;
extern LLGLSLShader			gDeferredTreeProgram;
extern LLGLSLShader			gDeferredTreeShadowProgram;
extern LLGLSLShader			gDeferredLightProgram;
extern LLGLSLShader			gDeferredMultiLightProgram[LL_DEFERRED_MULTI_LIGHT_COUNT];
extern LLGLSLShader			gDeferredSpotLightProgram;
extern LLGLSLShader			gDeferredMultiSpotLightProgram;
extern LLGLSLShader			gDeferredSunProgram;
extern LLGLSLShader			gDeferredBlurLightProgram;
extern LLGLSLShader			gDeferredAvatarProgram;
extern LLGLSLShader			gDeferredSoftenProgram;
extern LLGLSLShader			gDeferredSoftenWaterProgram;
extern LLGLSLShader			gDeferredShadowProgram;
extern LLGLSLShader			gDeferredShadowCubeProgram;
extern LLGLSLShader			gDeferredShadowAlphaMaskProgram;
extern LLGLSLShader         gDeferredShadowGLTFAlphaMaskProgram;
extern LLGLSLShader         gDeferredShadowGLTFAlphaBlendProgram;
extern LLGLSLShader			gDeferredShadowFullbrightAlphaMaskProgram;
extern LLGLSLShader			gDeferredPostProgram;
extern LLGLSLShader			gDeferredCoFProgram;
extern LLGLSLShader			gDeferredDoFCombineProgram;
extern LLGLSLShader			gFXAAProgram;
extern LLGLSLShader			gDeferredPostNoDoFProgram;
extern LLGLSLShader			gDeferredPostGammaCorrectProgram;
extern LLGLSLShader         gNoPostGammaCorrectProgram;
extern LLGLSLShader         gLegacyPostGammaCorrectProgram;
extern LLGLSLShader			gExposureProgram;
extern LLGLSLShader			gLuminanceProgram;
extern LLGLSLShader			gDeferredAvatarShadowProgram;
extern LLGLSLShader			gDeferredAvatarAlphaShadowProgram;
extern LLGLSLShader			gDeferredAvatarAlphaMaskShadowProgram;
extern LLGLSLShader			gDeferredAlphaProgram;
extern LLGLSLShader			gHUDAlphaProgram;
extern LLGLSLShader			gDeferredAlphaImpostorProgram;
extern LLGLSLShader			gDeferredFullbrightProgram;
extern LLGLSLShader			gHUDFullbrightProgram;
extern LLGLSLShader			gDeferredFullbrightAlphaMaskProgram;
extern LLGLSLShader			gHUDFullbrightAlphaMaskProgram;
extern LLGLSLShader			gDeferredFullbrightAlphaMaskAlphaProgram;
extern LLGLSLShader			gHUDFullbrightAlphaMaskAlphaProgram;
extern LLGLSLShader			gDeferredAlphaWaterProgram;
extern LLGLSLShader			gDeferredFullbrightWaterProgram;
extern LLGLSLShader			gDeferredFullbrightWaterAlphaProgram;
extern LLGLSLShader			gDeferredFullbrightAlphaMaskWaterProgram;
extern LLGLSLShader			gDeferredEmissiveProgram;
extern LLGLSLShader			gDeferredAvatarEyesProgram;
extern LLGLSLShader			gDeferredAvatarAlphaProgram;
extern LLGLSLShader			gDeferredWLSkyProgram;
extern LLGLSLShader			gDeferredWLCloudProgram;
extern LLGLSLShader			gDeferredWLSunProgram;
extern LLGLSLShader			gDeferredWLMoonProgram;
extern LLGLSLShader			gDeferredStarProgram;
extern LLGLSLShader			gDeferredFullbrightShinyProgram;
extern LLGLSLShader         gHUDFullbrightShinyProgram;
extern LLGLSLShader			gNormalMapGenProgram;
extern LLGLSLShader         gDeferredGenBrdfLutProgram;
extern LLGLSLShader			gDeferredBufferVisualProgram;

// Deferred materials shaders
extern LLGLSLShader			gDeferredMaterialProgram[LLMaterial::SHADER_COUNT*2];
extern LLGLSLShader			gDeferredMaterialWaterProgram[LLMaterial::SHADER_COUNT*2];

extern LLGLSLShader         gHUDPBROpaqueProgram;
extern LLGLSLShader         gPBRGlowProgram;
extern LLGLSLShader         gDeferredPBROpaqueProgram;
extern LLGLSLShader         gDeferredPBRAlphaProgram;
extern LLGLSLShader         gDeferredPBRAlphaWaterProgram;
extern LLGLSLShader         gHUDPBRAlphaProgram;

// Encodes detail level for dropping textures, in accordance with the GLTF spec
// 0 is highest detail, -1 drops emissive, etc
// https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#additional-textures
enum TerrainPBRDetail : S32
{
    TERRAIN_PBR_DETAIL_MAX            = 0,
    TERRAIN_PBR_DETAIL_EMISSIVE       = 0,
    TERRAIN_PBR_DETAIL_OCCLUSION      = -1,
    TERRAIN_PBR_DETAIL_MIN            = -1,
};
extern LLGLSLShader         gDeferredPBRTerrainProgram;
#endif