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
|
/**
* @file llglslshader.h
* @brief GLSL shader wrappers
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_LLGLSLSHADER_H
#define LL_LLGLSLSHADER_H
#include "llgl.h"
#include "llrender.h"
class LLShaderFeatures
{
public:
bool calculatesLighting;
bool calculatesAtmospherics;
bool hasLighting; // implies no transport (it's possible to have neither though)
bool isShiny;
bool isFullbright; // implies no lighting
bool isSpecular;
bool hasWaterFog; // implies no gamma
bool hasTransport; // implies no lighting (it's possible to have neither though)
bool hasSkinning;
bool hasAtmospherics;
bool hasGamma;
// char numLights;
LLShaderFeatures();
};
class LLGLSLShader
{
public:
enum
{
SG_DEFAULT = 0,
SG_SKY,
SG_WATER
};
LLGLSLShader();
void unload();
BOOL createShader(std::vector<std::string> * attributes,
std::vector<std::string> * uniforms);
BOOL attachObject(std::string object);
void attachObject(GLhandleARB object);
void attachObjects(GLhandleARB* objects = NULL, S32 count = 0);
BOOL mapAttributes(const std::vector<std::string> * attributes);
BOOL mapUniforms(const std::vector<std::string> * uniforms);
void mapUniform(GLint index, const std::vector<std::string> * uniforms);
void uniform1f(U32 index, GLfloat v);
void uniform2f(U32 index, GLfloat x, GLfloat y);
void uniform3f(U32 index, GLfloat x, GLfloat y, GLfloat z);
void uniform4f(U32 index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
void uniform1fv(U32 index, U32 count, const GLfloat* v);
void uniform2fv(U32 index, U32 count, const GLfloat* v);
void uniform3fv(U32 index, U32 count, const GLfloat* v);
void uniform4fv(U32 index, U32 count, const GLfloat* v);
void uniform1f(const std::string& uniform, GLfloat v);
void uniform2f(const std::string& uniform, GLfloat x, GLfloat y);
void uniform3f(const std::string& uniform, GLfloat x, GLfloat y, GLfloat z);
void uniform4f(const std::string& uniform, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
void uniform1fv(const std::string& uniform, U32 count, const GLfloat* v);
void uniform2fv(const std::string& uniform, U32 count, const GLfloat* v);
void uniform3fv(const std::string& uniform, U32 count, const GLfloat* v);
void uniform4fv(const std::string& uniform, U32 count, const GLfloat* v);
void uniformMatrix2fv(U32 index, U32 count, GLboolean transpose, const GLfloat *v);
void uniformMatrix3fv(U32 index, U32 count, GLboolean transpose, const GLfloat *v);
void uniformMatrix4fv(U32 index, U32 count, GLboolean transpose, const GLfloat *v);
void uniformMatrix2fv(const std::string& uniform, U32 count, GLboolean transpose, const GLfloat *v);
void uniformMatrix3fv(const std::string& uniform, U32 count, GLboolean transpose, const GLfloat *v);
void uniformMatrix4fv(const std::string& uniform, U32 count, GLboolean transpose, const GLfloat *v);
void vertexAttrib4f(U32 index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
void vertexAttrib4fv(U32 index, GLfloat* v);
GLint getUniformLocation(const std::string& uniform);
GLint mapUniformTextureChannel(GLint location, GLenum type);
//enable/disable texture channel for specified uniform
//if given texture uniform is active in the shader,
//the corresponding channel will be active upon return
//returns channel texture is enabled in from [0-MAX)
S32 enableTexture(S32 uniform, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
S32 disableTexture(S32 uniform, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
BOOL link(BOOL suppress_errors = FALSE);
void bind();
void unbind();
// Unbinds any previously bound shader by explicitly binding no shader.
static void bindNoShader(void);
GLhandleARB mProgramObject;
std::vector<GLint> mAttribute; //lookup table of attribute enum to attribute channel
std::vector<GLint> mUniform; //lookup table of uniform enum to uniform location
std::map<std::string, GLint> mUniformMap; //lookup map of uniform name to uniform location
std::map<GLint, LLVector4> mValue; //lookup map of uniform location to last known value
std::vector<GLint> mTexture;
S32 mActiveTextureChannels;
S32 mShaderLevel;
S32 mShaderGroup;
BOOL mUniformsDirty;
LLShaderFeatures mFeatures;
std::vector< std::pair< std::string, GLenum > > mShaderFiles;
std::string mName;
};
#endif
|
