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1 | #include <cassert> |
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2 | |
1 | #include "shader.h" |
3 | #include "shader.h" |
2 | #include "shader_vars.h" |
4 | #include "shader_vars.h" |
3 | |
5 | |
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6 | #include <sstream> |
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7 | #include <iomanip> |
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8 | |
4 | namespace shader { |
9 | namespace shader { |
5 | |
10 | |
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11 | using namespace std; |
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12 | |
6 | refcounted::~refcounted () |
13 | refcounted::~refcounted () |
7 | { |
14 | { |
8 | #if 1 |
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9 | if (refcnt) |
15 | if (refcnt) |
10 | abort (); |
16 | abort (); |
11 | #endif |
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12 | } |
17 | } |
13 | |
18 | |
14 | void refcounted::refcnt_dec () const |
19 | void refcounted::refcnt_destroy () const |
15 | { |
20 | { |
16 | if (!--refcnt) |
21 | if (!--refcnt) |
17 | delete this; // quite a bit of code... |
22 | delete this; // quite a bit of code... |
18 | } |
23 | } |
19 | |
24 | |
… | |
… | |
35 | const char str_sampler_3d_rect [] = "sampler3DRect"; |
40 | const char str_sampler_3d_rect [] = "sampler3DRect"; |
36 | const char str_sampler_cube [] = "samplerCube"; |
41 | const char str_sampler_cube [] = "samplerCube"; |
37 | |
42 | |
38 | unsigned int var_i::next_id = 0; |
43 | unsigned int var_i::next_id = 0; |
39 | |
44 | |
40 | var_i::var_i (const char *typestr) |
45 | var_i::var_i (const char *domainstr, const char *typestr) |
41 | : typestr (typestr) |
46 | : domainstr (domainstr), typestr (typestr) |
42 | { |
47 | { |
43 | //param = cgCreateParameter (cg_context, cgtype); |
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44 | } |
48 | } |
45 | |
49 | |
46 | var_i::~var_i () |
50 | var_i::~var_i () |
47 | { |
51 | { |
48 | //cgDestroyParameter (param); |
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49 | } |
52 | } |
50 | |
53 | |
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54 | #if 0 |
51 | stream_i::stream_i (const char *strtype) |
55 | stream_i::stream_i (const char *strtype) |
52 | : var_i (strtype) |
56 | : var_i (strtype) |
53 | { |
57 | { |
54 | sprintf (name, "V%lx_%d", ((long)this >> 4) & 0xfff, ++next_id); |
58 | sprintf (name, "V%d", ++next_id); |
55 | } |
59 | } |
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60 | #endif |
56 | |
61 | |
57 | temporary_i::temporary_i (const char *strtype) |
62 | temporary_i::temporary_i (const char *strtype) |
58 | : var_i (strtype) |
63 | : var_i (0, strtype) |
59 | { |
64 | { |
60 | sprintf (name, "T%lx_%d", ((long)this >> 4) & 0xfff, ++next_id); |
65 | sprintf (name, "T%d", ++next_id); |
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66 | } |
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67 | |
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68 | varying_i::varying_i (const char *strtype) |
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69 | : var_i ("varying", strtype) |
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70 | { |
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71 | sprintf (name, "V%d", ++next_id); |
61 | } |
72 | } |
62 | |
73 | |
63 | uniform_i::uniform_i (const char *strtype) |
74 | uniform_i::uniform_i (const char *strtype) |
64 | : var_i (strtype), dirty (true) |
75 | : var_i ("uniform", strtype) |
65 | { |
76 | { |
66 | sprintf (name, "U%lx_%d", ((long)this >> 4) & 0xfff, ++next_id); |
77 | sprintf (name, "U%d", ++next_id); |
67 | } |
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68 | |
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69 | fragment_string_i::~fragment_string_i () |
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70 | { |
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71 | free (str); |
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72 | } |
78 | } |
73 | |
79 | |
74 | //////////////////////////////////////////////////////////////////////////// |
80 | //////////////////////////////////////////////////////////////////////////// |
75 | |
81 | |
76 | void var_i::build_decl (ostringstream &b) |
82 | void var_i::operator ()() const |
77 | { |
83 | { |
78 | b << typestr << ' ' << name; |
84 | compile::cur->code << name; |
79 | } |
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80 | |
85 | |
81 | void uniform_i::build_decl (ostringstream &b) |
86 | if (compile::cur->first (this)) |
82 | { |
87 | { |
83 | b << "uniform " << typestr << ' ' << name; |
88 | if (domainstr) |
84 | } |
89 | compile::cur->global << domainstr << ' ' << typestr << ' ' << name << ";\n"; |
85 | |
90 | else |
86 | void stream_i::build_decl (ostringstream &b) |
91 | compile::cur->local << " " << typestr << ' ' << name << ";\n"; |
87 | { |
92 | } |
88 | b << typestr << ' ' << name; |
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89 | } |
93 | } |
90 | |
94 | |
91 | //////////////////////////////////////////////////////////////////////////// |
95 | //////////////////////////////////////////////////////////////////////////// |
92 | |
96 | |
93 | void glvar_i::build (shader_builder &b) |
97 | int texture_units::unit_count = 8; |
94 | { |
98 | int texture_units::units[8] = { 7, 6, 5, 4, 3, 2, 1, 0 }; |
95 | b << name; |
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96 | } |
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97 | |
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98 | void var_i::build (shader_builder &b) |
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99 | { |
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100 | b << name; |
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101 | } |
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102 | |
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103 | void uniform_i::build (shader_builder &b) |
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104 | { |
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105 | var_i::build (b); |
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106 | |
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107 | if (find (b.refs.begin (), b.refs.end (), uniform (*this)) == b.refs.end ()) |
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108 | b.refs.push_back (*this); |
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109 | } |
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110 | |
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111 | void stream_i::build (shader_builder &b) |
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112 | { |
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113 | var_i::build (b); |
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114 | |
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115 | if (find (b.streams.begin (), b.streams.end (), var (*this)) == b.streams.end ()) |
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116 | b.streams.push_back (*this); |
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117 | } |
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118 | |
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119 | void temporary_i::build (shader_builder &b) |
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120 | { |
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121 | var_i::build (b); |
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122 | |
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123 | if (find (b.temps.begin (), b.temps.end (), var (*this)) == b.temps.end ()) |
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124 | b.temps.push_back (*this); |
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125 | } |
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126 | |
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127 | void fragment_vector_i::build (shader_builder &b) |
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128 | { |
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129 | for (vector<fragment>::iterator i = begin (); i != end (); i++) |
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130 | (*i)->build (b); |
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131 | } |
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132 | |
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133 | void fragment_const_string_i::build (shader_builder &b) |
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134 | { |
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135 | b << str; |
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136 | } |
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137 | |
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138 | void fragment_string_i::build (shader_builder &b) |
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139 | { |
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140 | b << str; |
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141 | } |
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142 | |
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143 | #if 0 |
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144 | void statement_i::build (shader_builder &b) |
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145 | { |
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146 | b << " "; |
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147 | fragment_vector_i::build (b); |
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148 | b << ";\n"; |
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149 | } |
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150 | #endif |
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151 | |
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152 | //////////////////////////////////////////////////////////////////////////// |
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153 | |
99 | |
154 | shader_object_i *cur = 0; |
100 | shader_object_i *cur = 0; |
155 | |
101 | |
156 | shader_object_i::shader_object_i (GLenum type) |
102 | shader_object_i::shader_object_i (GLenum type) |
157 | : type (type) |
103 | : type (type) |
158 | { |
104 | { |
159 | id = glCreateShaderObjectARB (type); |
105 | id = glCreateShaderObjectARB (type); |
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106 | assert (id); |
160 | } |
107 | } |
161 | |
108 | |
162 | shader_object_i::~shader_object_i () |
109 | shader_object_i::~shader_object_i () |
163 | { |
110 | { |
164 | glDeleteObjectARB (id); |
111 | glDeleteObjectARB (id); |
165 | } |
112 | } |
166 | |
113 | |
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114 | static string linify (const string &s) |
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115 | { |
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116 | ostringstream o; |
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117 | |
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118 | int b = 0, e; |
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119 | int l = 1; |
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120 | do { |
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121 | o << setw (3) << l << ": "; |
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122 | e = s.find ('\n', b); |
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123 | if (e == string::npos) |
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124 | e = s.size (); |
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125 | |
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126 | o << s.substr (b, e - b + 1); |
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127 | b = e + 1; |
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128 | l++; |
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129 | } while (b < s.size ()); |
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130 | |
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131 | return o.str (); |
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132 | } |
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133 | |
167 | void shader_object_i::start () |
134 | void shader_object_i::start () |
168 | { |
135 | { |
169 | clear (); |
136 | compile::cur = new compile::shader_builder; |
170 | cur = this; |
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171 | } |
137 | } |
172 | |
138 | |
173 | void shader_object_i::stop () |
139 | void shader_object_i::stop () |
174 | { |
140 | { |
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141 | compile::shader_builder &b = *compile::cur; |
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142 | |
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143 | ostringstream os; |
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144 | |
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145 | os << b.global.str () |
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146 | << "\nvoid main (void)\n" |
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147 | << "{\n" |
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148 | << b.local.str () |
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149 | << "\n" |
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150 | << b.code.str () |
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151 | << "}\n"; |
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152 | |
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153 | delete cur; |
175 | cur = 0; |
154 | cur = 0; |
176 | } |
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177 | |
155 | |
178 | string shader_object_i::source () |
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179 | { |
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180 | shader_builder b; |
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181 | build (b); |
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182 | ostringstream os; |
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183 | |
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184 | for (vector<uniform>::iterator i = b.refs.begin (); i != b.refs.end (); i++) |
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185 | { |
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186 | (*i)->build_decl (os); |
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187 | os << ";\n"; |
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188 | } |
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189 | |
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190 | // not neccessary right now, as GLSL is rich on predefinitions |
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191 | for (vector<var>::iterator i = b.streams.begin (); i != b.streams.end (); i++) |
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192 | { |
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193 | os << "attribute "; |
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194 | (*i)->build_decl (os); |
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195 | os << ";\n"; |
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196 | } |
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197 | |
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198 | os << "\nvoid main (void)\n{\n"; |
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199 | |
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200 | for (vector<var>::iterator i = b.temps.begin (); i != b.temps.end (); i++) |
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201 | { |
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202 | os << " "; |
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203 | (*i)->build_decl (os); |
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204 | os << ";\n"; |
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205 | } |
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206 | |
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207 | os << "\n"; |
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208 | os << b.source.str (); |
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209 | os << "}\n"; |
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210 | |
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211 | return os.str (); |
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212 | } |
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213 | |
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214 | void shader_object_i::compile () |
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215 | { |
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216 | string src = source (); |
156 | string src = os.str (); |
217 | const char *sptr = src.data (); |
157 | const char *sptr = src.data (); |
218 | const int slen = src.size (); |
158 | const int slen = src.size (); |
219 | |
159 | |
220 | printf ("SOURCE<%s>\n", src.c_str ()); |
160 | printf ("%s\n", linify (src).c_str ()); |
221 | glShaderSourceARB (id, 1, &sptr, &slen); |
161 | glShaderSourceARB (id, 1, &sptr, &slen); |
222 | glCompileShaderARB (id); |
162 | glCompileShaderARB (id); |
223 | |
163 | |
224 | GLint compiled; |
164 | GLint compiled; |
225 | glGetObjectParameterivARB (id, GL_OBJECT_COMPILE_STATUS_ARB, &compiled); |
165 | glGetObjectParameterivARB (id, GL_OBJECT_COMPILE_STATUS_ARB, &compiled); |
226 | |
166 | |
227 | if (!compiled) |
167 | if (!compiled) |
228 | { |
168 | { |
229 | char infolog[8192]; |
169 | char infolog[8192]; |
230 | glGetInfoLogARB (id, 8192, NULL, infolog); |
170 | glGetInfoLogARB (id, 8192, NULL, infolog); |
231 | printf ("SOURCE<%s>\n", src.c_str ()); |
171 | printf ("%s\n", linify (src).c_str ()); |
232 | printf ("INFOLOG<%s>\n", infolog); |
172 | printf ("%s\n", infolog); |
233 | abort (); |
173 | abort (); |
234 | } |
174 | } |
235 | } |
175 | } |
236 | |
176 | |
237 | void sl_func0::begin () const |
177 | //////////////////////////////////////////////////////////////////////////// |
238 | { |
178 | |
239 | cur->append_string (name_par); |
179 | program_object *program_object::cur = 0; |
240 | } |
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241 | |
180 | |
242 | void sl_func0::comma () const |
181 | GLint uniform_i::location () |
243 | { |
182 | { |
244 | cur->append (str_comma); |
183 | assert (program_object::cur); |
245 | } |
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246 | |
184 | |
247 | void sl_func0::end () const |
185 | GLint &rid = program_object::cur->uloc[this]; |
248 | { |
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249 | str_rpar (); |
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250 | } |
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251 | |
186 | |
252 | void sl_float::operator ()() const |
187 | if (!rid) |
253 | { |
188 | rid = glGetUniformLocationARB (program_object::cur->id, name); |
254 | char s[20]; |
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255 | sprintf (s, "%g", c); |
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256 | cur->append_string (s); |
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257 | } |
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258 | |
189 | |
259 | const sl_convert< ::vec2 >::T sl_convert< ::vec2 >::convert (const ::vec2 &v) |
190 | return rid; |
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191 | } |
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192 | |
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193 | program_object::program_object () |
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194 | { |
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195 | id = glCreateProgramObjectARB (); |
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196 | assert (id); |
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197 | |
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198 | glAttachObjectARB (id, vsh->id); |
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199 | glAttachObjectARB (id, fsh->id); |
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200 | } |
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201 | |
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202 | program_object::~program_object () |
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203 | { |
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204 | glDeleteProgramsARB (1, &id); |
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205 | } |
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206 | |
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207 | void program_object::link () |
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208 | { |
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209 | glLinkProgramARB (id); |
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210 | |
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211 | GLint linked; |
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212 | glGetObjectParameterivARB (id, GL_OBJECT_LINK_STATUS_ARB, &linked); |
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213 | |
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214 | if (!linked) |
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215 | { |
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216 | char infolog[8192]; |
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217 | glGetInfoLogARB (id, 8192, NULL, infolog); |
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218 | printf ("LINK-INFOLOG<%s>\n", infolog); |
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219 | abort (); |
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220 | } |
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221 | |
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222 | uloc.clear (); |
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223 | } |
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224 | |
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225 | void program_object::enable () |
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226 | { |
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227 | glUseProgramObjectARB (id); |
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228 | //TODO: set samplers here |
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229 | cur = this; |
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230 | } |
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231 | |
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232 | void program_object::disable () |
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233 | { |
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234 | //TODO: clear samplers here |
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235 | glUseProgramObjectARB (0); |
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236 | cur = 0; |
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237 | } |
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238 | |
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239 | const sl_expr< sl_string<60> > sl_convert< ::vec2 >::convert (const ::vec2 &v) |
260 | { |
240 | { |
261 | sl_string<60> s; |
241 | sl_string<60> s; |
262 | sprintf (s.str, "vec2 (%g, %g)", v.x, v.y); |
242 | sprintf (s.str, "vec2 (%g, %g)", v.x, v.y); |
263 | return s; |
243 | return s; |
264 | } |
244 | } |
265 | |
245 | |
266 | const sl_convert< ::vec3 >::T sl_convert< ::vec3 >::convert (const ::vec3 &v) |
246 | const sl_expr< sl_string<80> > sl_convert< ::vec3 >::convert (const ::vec3 &v) |
267 | { |
247 | { |
268 | sl_string<80> s; |
248 | sl_string<80> s; |
269 | sprintf (s.str, "vec3 (%g, %g, %g)", v.x, v.y, v.z); |
249 | sprintf (s.str, "vec3 (%g, %g, %g)", v.x, v.y, v.z); |
270 | return s; |
250 | return s; |
271 | } |
251 | } |
272 | |
252 | |
273 | const sl_convert< ::vec4 >::T sl_convert< ::vec4 >::convert (const ::vec4 &v) |
253 | const sl_expr< sl_string<100> > sl_convert< ::vec4 >::convert (const ::vec4 &v) |
274 | { |
254 | { |
275 | sl_string<100> s; |
255 | sl_string<100> s; |
276 | sprintf (s.str, "vec4 (%g, %g, %g, %g)", v.x, v.y, v.z, v.w); |
256 | sprintf (s.str, "vec4 (%g, %g, %g, %g)", v.x, v.y, v.z, v.w); |
277 | return s; |
257 | return s; |
278 | } |
258 | } |
279 | |
259 | |
280 | const fragment_const_string str_2sp (" "); |
260 | namespace compile { |
281 | const fragment_const_string str_equal (" = "); |
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282 | const fragment_const_string str_comma (", "); |
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283 | const fragment_const_string str_endl (";\n"); |
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284 | |
261 | |
285 | const sl_append_const_string str_plus (" + "); |
262 | shader_builder *cur = 0; |
286 | const sl_append_const_string str_minus (" - "); |
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287 | const sl_append_const_string str_mul (" * "); |
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288 | const sl_append_const_string str_div (" / "); |
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289 | const sl_append_const_string str_mod (" % "); |
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290 | |
263 | |
291 | const sl_append_const_string str_lpar ("("); |
264 | bool shader_builder::first (const void *p) |
292 | const sl_append_const_string str_rpar (")"); |
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293 | |
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294 | void swizzle_mask (sl_string<7> &s, int mask) |
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295 | { |
265 | { |
296 | static const char channel[4] = { 'x', 'y', 'z', 'w' }; |
266 | if (seen.find (p) == seen.end ()) |
297 | |
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298 | char *str = s.str; |
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299 | |
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300 | *str++ = ')'; |
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301 | *str++ = '.'; |
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302 | |
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303 | while (mask) |
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304 | { |
267 | { |
305 | int c = mask % 5; |
268 | seen.insert (p); |
306 | mask /= 5; |
269 | return true; |
307 | |
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308 | if (c) |
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309 | *str++ = channel[c - 1]; |
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310 | } |
270 | } |
311 | |
271 | |
312 | *str++ = 0; |
272 | return false; |
313 | } |
273 | } |
314 | |
274 | } |
315 | |
275 | |
316 | void debdebdebdebug ()//D |
276 | void debdebdebdebug ()//D |
317 | { |
277 | { |
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278 | return; |
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279 | |
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280 | using namespace compile; |
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281 | |
318 | vertex_shader vsh; |
282 | vertex_shader vsh; |
319 | |
283 | |
320 | vsh->start (); |
284 | vsh->start (); |
321 | |
285 | |
322 | temp_4f lightpos; |
286 | temp_4f lightpos; |
323 | temp_3f wpos; |
287 | temp_4f wpos; |
324 | |
288 | |
325 | lightpos = vec4 (10, -10, 0, 1); |
289 | lightpos = vec4 (0, 10, 0, 1); |
326 | wpos = xyz (gl.model_view_matrix * vin.vertex); |
290 | wpos = model_view_matrix * vin.vertex; |
327 | vout.position = gl.model_view_matrix_inverse_transpose * vin.vertex; |
291 | vout.position = vin.vertex * model_view_matrix_inverse; |
328 | vout.tex_coord[0] = vin.tex_coord[0]; |
292 | vout.tex_coord[0] = vin.tex_coord[0]; |
329 | vout.tex_coord[1] = normalize (lightpos - wpos); |
293 | vout.tex_coord[1] = normalize (lightpos - wpos); |
330 | vout.tex_coord[2] = normalize (wpos); |
294 | vout.tex_coord[2] = normalize (wpos); |
331 | vout.tex_coord[3] = normalize (xyz (gl.model_view_matrix_inverse_transpose) * vin.normal); |
295 | //vout.tex_coord[3] = normalize (xyz (model_view_matrix_inverse_transpose) * vin.normal); |
332 | vout.tex_coord[4] = normalize (xyz (gl.projection_matrix_inverse_transpose) - wpos); |
296 | //vout.tex_coord[4] = normalize (xyz (projection_matrix_inverse_transpose) - wpos); |
333 | |
297 | |
334 | vsh->end (); |
298 | vsh->stop (); |
335 | //vsh->compile (); |
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336 | |
299 | |
337 | fragment_shader fsh; |
300 | fragment_shader fsh; |
338 | |
301 | |
339 | fsh->start (); |
302 | fsh->start (); |
340 | |
303 | |
341 | xyz (fout.frag_color) = noise3 (x (fin.frag_coord) * y (fin.frag_coord)); |
304 | xyz (fout.frag_color) = noise3 (x (fin.frag_coord) * y (fin.frag_coord)); |
342 | |
305 | |
343 | temp_1f spec_expon; |
306 | temp_1f spec_expon; |
344 | spec_expon = 200; |
307 | spec_expon = 200; |
345 | |
308 | |
346 | fsh->end (); |
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347 | fsh->compile (); |
309 | fsh->stop (); |
348 | |
310 | |
349 | //abort (); |
311 | //abort (); |
350 | } |
312 | } |
351 | |
313 | |
352 | } |
314 | } |