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
|
/**
* @file llglslshader.h
* @brief GLSL shader wrappers
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* 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_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 isAlphaLighting; // indicates lighting shaders need not be linked in (lighting performed directly in alpha shader to match deferred lighting functions)
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 hasObjectSkinning;
bool hasAtmospherics;
bool hasGamma;
S32 mIndexedTextureChannels;
bool disableTextureIndex;
bool hasAlphaMask;
// char numLights;
LLShaderFeatures();
};
class LLGLSLShader
{
public:
enum
{
SG_DEFAULT = 0,
SG_SKY,
SG_WATER
};
LLGLSLShader();
static GLhandleARB sCurBoundShader;
static LLGLSLShader* sCurBoundShaderPtr;
static S32 sIndexedTextureChannels;
static bool sNoFixedFunction;
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 uniform1i(U32 index, GLint i);
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 uniform1iv(U32 index, U32 count, const GLint* i);
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 uniform1i(const std::string& uniform, GLint i);
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 uniform1iv(const std::string& uniform, U32 count, const GLint* i);
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 setMinimumAlpha(F32 minimum);
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 getUniformLocation(U32 index);
GLint getAttribLocation(U32 attrib);
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);
U32 mMatHash[LLRender::NUM_MATRIX_MODES];
U32 mLightHash;
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;
};
//UI shader (declared here so llui_libtest will link properly)
extern LLGLSLShader gUIProgram;
//output vec4(color.rgb,color.a*tex0[tc0].a)
extern LLGLSLShader gSolidColorProgram;
#endif
|
