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1 | #include <cstdlib> |
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2 | #include <cstring> |
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3 | |
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4 | #include <algorithm> |
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5 | |
| 1 | #include "opengl.h" |
6 | #include "opengl.h" |
| 2 | #include "material.h" |
7 | #include "material.h" |
| 3 | |
8 | #include "view.h" |
| 4 | #include <cstdlib> |
9 | #include "util.h" |
| 5 | #include <cstring> |
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| 6 | |
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| 7 | #include <algorithm> |
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| 8 | |
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| 9 | namespace shader { |
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| 10 | |
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| 11 | refcounted::~refcounted () |
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| 12 | { |
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| 13 | #if 0 |
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| 14 | if (refcnt) |
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| 15 | abort (); |
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| 16 | #endif |
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| 17 | } |
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| 18 | |
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| 19 | const char str_float [] = "float"; |
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| 20 | const char str_float2 [] = "float2"; |
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| 21 | const char str_float3 [] = "float3"; |
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| 22 | const char str_float4 [] = "float4"; |
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| 23 | const char str_float4x4 [] = "float4x4"; |
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| 24 | |
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| 25 | static CGcontext cg_context = cgCreateContext (); |
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| 26 | |
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| 27 | int var_i::next_name = 0; |
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| 28 | |
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| 29 | var_i::var_i (CGtype cgtype, const char *typestr) |
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| 30 | : typestr (typestr) |
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| 31 | { |
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| 32 | name = ++next_name; |
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| 33 | param = cgCreateParameter (cg_context, cgtype); |
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| 34 | } |
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| 35 | |
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| 36 | var_i::~var_i () |
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| 37 | { |
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| 38 | cgDestroyParameter (param); |
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| 39 | } |
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| 40 | |
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| 41 | void var_i::build_decl (ostringstream &b) |
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| 42 | { |
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| 43 | b << typestr << ' ' << "V" << name; |
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| 44 | } |
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| 45 | |
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| 46 | void uniform_i::build_decl (ostringstream &b) |
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| 47 | { |
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| 48 | b << "uniform " << typestr << ' ' << "V" << name; |
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| 49 | } |
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| 50 | |
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| 51 | void stream_i::build_decl (ostringstream &b) |
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| 52 | { |
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| 53 | b << typestr << ' ' << "V" << name; |
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| 54 | b << " : " << binding; |
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| 55 | } |
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| 56 | |
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| 57 | void var_i::build (shader_builder &b) |
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| 58 | { |
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| 59 | b << "V" << name; |
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| 60 | } |
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| 61 | |
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| 62 | void uniform_i::build (shader_builder &b) |
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| 63 | { |
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| 64 | var_i::build (b); |
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| 65 | |
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| 66 | if (find (b.refs.begin (), b.refs.end (), uniform (*this)) == b.refs.end ()) |
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| 67 | b.refs.push_back (*this); |
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| 68 | } |
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| 69 | |
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| 70 | void stream_i::build (shader_builder &b) |
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| 71 | { |
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| 72 | var_i::build (b); |
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| 73 | |
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| 74 | if (find (b.streams.begin (), b.streams.end (), var (*this)) == b.streams.end ()) |
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| 75 | b.streams.push_back (*this); |
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| 76 | } |
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| 77 | |
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| 78 | void temporary_i::build (shader_builder &b) |
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| 79 | { |
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| 80 | var_i::build (b); |
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| 81 | |
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| 82 | if (find (b.temps.begin (), b.temps.end (), var (*this)) == b.temps.end ()) |
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| 83 | b.temps.push_back (*this); |
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| 84 | } |
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| 85 | |
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| 86 | void fragment_const_string_i::build (shader_builder &b) |
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| 87 | { |
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| 88 | b << str; |
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| 89 | } |
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| 90 | |
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| 91 | struct vin vin; |
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| 92 | |
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| 93 | // MUST update is-function below |
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| 94 | varying_3f vin::position_3f ("POSITION"); |
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| 95 | varying_4f vin::position_4f ("POSITION"); |
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| 96 | varying_3f vin::normal_3f ("NORMAL"); |
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| 97 | varying_4f vin::normal_4f ("NORMAL"); |
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| 98 | varying_3f vin::color0_3f ("COLOR0"); |
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| 99 | varying_4f vin::color0_4f ("COLOR0"); |
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| 100 | varying_3f vin::color1_3f ("COLOR1"); |
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| 101 | varying_4f vin::color1_4f ("COLOR1"); |
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| 102 | varying_2f vin::texcoord0_2f ("TEXCOORD0"); |
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| 103 | varying_4f vin::texcoord0_4f ("TEXCOORD0"); |
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| 104 | varying_2f vin::texcoord1_2f ("TEXCOORD1"); |
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| 105 | varying_4f vin::texcoord1_4f ("TEXCOORD1"); |
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| 106 | varying_2f vin::texcoord2_2f ("TEXCOORD2"); |
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| 107 | varying_4f vin::texcoord2_4f ("TEXCOORD2"); |
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| 108 | varying_2f vin::texcoord3_2f ("TEXCOORD3"); |
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| 109 | varying_4f vin::texcoord3_4f ("TEXCOORD3"); |
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| 110 | varying_2f vin::texcoord4_2f ("TEXCOORD4"); |
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| 111 | varying_4f vin::texcoord4_4f ("TEXCOORD4"); |
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| 112 | varying_2f vin::texcoord5_2f ("TEXCOORD5"); |
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| 113 | varying_4f vin::texcoord5_4f ("TEXCOORD5"); |
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| 114 | varying_2f vin::texcoord6_2f ("TEXCOORD6"); |
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| 115 | varying_4f vin::texcoord6_4f ("TEXCOORD6"); |
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| 116 | varying_2f vin::texcoord7_2f ("TEXCOORD7"); |
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| 117 | varying_4f vin::texcoord7_4f ("TEXCOORD7"); |
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| 118 | varying_1f vin::psize_1f ("PSIZE"); |
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| 119 | varying_1f vin::attr6_1f ("ATTR6"); |
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| 120 | varying_1f vin::attr7_1f ("ATTR7"); |
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| 121 | varying_2f vin::attr6_2f ("ATTR6"); |
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| 122 | varying_2f vin::attr7_2f ("ATTR7"); |
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| 123 | varying_3f vin::attr6_3f ("ATTR6"); |
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| 124 | varying_3f vin::attr7_3f ("ATTR7"); |
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| 125 | varying_4f vin::attr6_4f ("ATTR6"); |
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| 126 | varying_4f vin::attr7_4f ("ATTR7"); |
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| 127 | |
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| 128 | bool vin::is (const var &r) |
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| 129 | { |
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| 130 | return r == vin::position_3f |
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| 131 | || r == vin::position_4f |
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| 132 | || r == vin::normal_3f |
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| 133 | || r == vin::normal_4f |
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| 134 | || r == vin::color0_3f |
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| 135 | || r == vin::color0_4f |
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| 136 | || r == vin::color1_3f |
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| 137 | || r == vin::color1_4f |
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| 138 | || r == vin::texcoord0_2f |
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| 139 | || r == vin::texcoord0_4f |
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| 140 | || r == vin::texcoord1_2f |
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| 141 | || r == vin::texcoord1_4f |
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| 142 | || r == vin::texcoord2_2f |
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| 143 | || r == vin::texcoord2_4f |
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| 144 | || r == vin::texcoord3_2f |
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| 145 | || r == vin::texcoord3_4f |
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| 146 | || r == vin::texcoord4_2f |
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| 147 | || r == vin::texcoord4_4f |
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| 148 | || r == vin::texcoord5_2f |
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| 149 | || r == vin::texcoord5_4f |
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| 150 | || r == vin::texcoord6_2f |
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| 151 | || r == vin::texcoord6_4f |
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| 152 | || r == vin::texcoord7_2f |
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| 153 | || r == vin::texcoord7_4f |
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| 154 | || r == vin::psize_1f |
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| 155 | || r == vin::attr6_1f |
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| 156 | || r == vin::attr7_1f |
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| 157 | || r == vin::attr6_2f |
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| 158 | || r == vin::attr7_2f |
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| 159 | || r == vin::attr6_3f |
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| 160 | || r == vin::attr7_3f |
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| 161 | || r == vin::attr6_4f |
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| 162 | || r == vin::attr7_4f; |
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| 163 | } |
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| 164 | |
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| 165 | struct fin fin; |
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| 166 | struct fin &vout = fin; |
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| 167 | |
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| 168 | // MUST update is-function below |
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| 169 | varying_4f fin::position_4f ("HPOS"); |
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| 170 | varying_4f fin::color0_4f ("COLOR0"); |
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| 171 | varying_4f fin::color1_4f ("COLOR1"); |
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| 172 | varying_4f fin::texcoord0_4f ("TEXCOORD0"); |
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| 173 | varying_4f fin::texcoord1_4f ("TEXCOORD1"); |
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| 174 | varying_4f fin::texcoord2_4f ("TEXCOORD2"); |
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| 175 | varying_4f fin::texcoord3_4f ("TEXCOORD3"); |
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| 176 | varying_4f fin::texcoord4_4f ("TEXCOORD4"); |
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| 177 | varying_4f fin::texcoord5_4f ("TEXCOORD5"); |
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| 178 | varying_4f fin::texcoord6_4f ("TEXCOORD6"); |
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| 179 | varying_4f fin::texcoord7_4f ("TEXCOORD7"); |
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| 180 | |
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| 181 | bool fin::is (const var &r) |
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| 182 | { |
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| 183 | return r == fin::position_4f |
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| 184 | || r == fin::color0_4f |
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| 185 | || r == fin::color1_4f |
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| 186 | || r == fin::texcoord0_4f |
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| 187 | || r == fin::texcoord1_4f |
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| 188 | || r == fin::texcoord2_4f |
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| 189 | || r == fin::texcoord3_4f |
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| 190 | || r == fin::texcoord4_4f |
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| 191 | || r == fin::texcoord5_4f |
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| 192 | || r == fin::texcoord6_4f |
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| 193 | || r == fin::texcoord7_4f; |
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| 194 | } |
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| 195 | |
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| 196 | struct fout fout; |
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| 197 | |
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| 198 | // MUST update is-function below |
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| 199 | varying_4f fout::color0_4f ("COLOR0"); |
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| 200 | varying_3f fout::color0_3f ("COLOR0"); |
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| 201 | varying_4f fout::color1_4f ("COLOR1"); |
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| 202 | varying_3f fout::color1_3f ("COLOR1"); |
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| 203 | varying_1f fout::depth_1f ("DEPTH"); |
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| 204 | |
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| 205 | bool fout::is (const var &r) |
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| 206 | { |
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| 207 | return r == fout::color0_4f |
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| 208 | || r == fout::color0_3f |
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| 209 | || r == fout::color1_4f |
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| 210 | || r == fout::color1_3f |
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| 211 | || r == fout::depth_1f; |
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| 212 | } |
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| 213 | |
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| 214 | uniform_matrix_f_i mvp, mv, proj; |
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| 215 | |
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| 216 | void fragment_vector_i::build (shader_builder &b) |
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| 217 | { |
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| 218 | for (vector<fragment>::iterator i = begin (); i != end (); i++) |
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| 219 | (*i)->build (b); |
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| 220 | } |
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| 221 | |
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| 222 | void shader_program::print () |
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| 223 | { |
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| 224 | shader_builder b; |
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| 225 | build (b); |
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| 226 | ostringstream os; |
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| 227 | |
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| 228 | os << "void main (\n"; |
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| 229 | for (vector<var>::iterator i = b.streams.begin (); i != b.streams.end (); i++) |
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| 230 | { |
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| 231 | os << " "; |
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| 232 | |
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| 233 | if (is_vertex) |
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| 234 | { |
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| 235 | if (vin.is (*i)) os << "in "; |
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| 236 | if (vout.is (*i)) os << "out "; |
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| 237 | } |
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| 238 | else |
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| 239 | { |
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| 240 | if (fin.is (*i)) os << "in "; |
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| 241 | if (fout.is (*i)) os << "out "; |
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| 242 | } |
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| 243 | |
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| 244 | (*i)->build_decl (os); |
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| 245 | os << ",\n"; |
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| 246 | } |
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| 247 | |
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| 248 | for (vector<uniform>::iterator i = b.refs.begin (); i != b.refs.end (); i++) |
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| 249 | { |
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| 250 | os << " "; |
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| 251 | (*i)->build_decl (os); |
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| 252 | os << ",\n"; |
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| 253 | } |
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| 254 | |
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| 255 | os << " uniform float unused_cg_broken_syntax\n"; |
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| 256 | os << ")\n{\n"; |
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| 257 | |
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| 258 | for (vector<var>::iterator i = b.temps.begin (); i != b.temps.end (); i++) |
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| 259 | { |
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| 260 | (*i)->build_decl (os); |
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| 261 | os << ";\n"; |
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| 262 | } |
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| 263 | |
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| 264 | os << "\n"; |
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| 265 | os << b.source.str (); |
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| 266 | os << "\n}\n"; |
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| 267 | |
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| 268 | printf ("%s\n", os.str ().c_str ()); |
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| 269 | |
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| 270 | } |
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| 271 | |
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| 272 | void debdebdebdebug ()//D |
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| 273 | { |
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| 274 | vertex_program p; |
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| 275 | |
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| 276 | p << vout.position_4f << " = mul(" << vin.position_4f << "," << mvp << ");"; |
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| 277 | |
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| 278 | p.print (); |
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| 279 | exit (0); |
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| 280 | } |
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| 281 | |
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| 282 | } |
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| 283 | |
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| 284 | material::~material () |
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| 285 | { |
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| 286 | } |
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| 287 | |
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| 288 | void |
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| 289 | simple_material::begin () |
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| 290 | { |
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| 291 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
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| 292 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
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| 293 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
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| 294 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
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| 295 | } |
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| 296 | |
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| 297 | void |
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| 298 | simple_material::end () |
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| 299 | { |
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| 300 | } |
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| 301 | |
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| 302 | void |
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| 303 | osama_material::begin () |
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| 304 | { |
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| 305 | cgGLEnableProfile (vsh_profile); |
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| 306 | cgGLEnableProfile (fsh_profile); |
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| 307 | cgGLEnableTextureParameter (g_Texture); |
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| 308 | } |
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| 309 | |
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| 310 | void |
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| 311 | osama_material::end () |
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| 312 | { |
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| 313 | cgGLDisableTextureParameter (g_Texture); |
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| 314 | // cgGLUnbindProgram (vsh_profile); |
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| 315 | // cgGLUnbindProgram (fsh_profile); |
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| 316 | cgGLDisableProfile (vsh_profile); |
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| 317 | cgGLDisableProfile (fsh_profile); |
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| 318 | } |
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| 319 | |
10 | |
| 320 | GLuint |
11 | GLuint |
| 321 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
12 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
| 322 | { |
13 | { |
| 323 | GLuint textur; |
14 | GLuint name; |
| 324 | int w, h; |
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| 325 | SDL_Surface *image; |
15 | SDL_Surface *image; |
| 326 | SDL_Rect area; |
16 | SDL_Rect area; |
| 327 | Uint32 saved_flags; |
17 | Uint32 saved_flags; |
| 328 | Uint8 saved_alpha; |
18 | Uint8 saved_alpha; |
| 329 | |
19 | |
| 330 | /* Use the surface width and height expanded to powers of 2 */ |
20 | /* Use the surface width and height expanded to powers of 2 */ |
| 331 | //w = power_of_two (surface->w); |
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| 332 | //h = power_of_two (surface->h); |
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| 333 | w = power_of_two (surface->w); |
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| 334 | h = power_of_two (surface->h); |
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| 335 | tex2oord[0] = 0.0f; /* Min X */ |
21 | tex2oord[0] = 0.F; /* Min X */ |
| 336 | tex2oord[1] = 0.0f; /* Min Y */ |
22 | tex2oord[1] = 0.F; /* Min Y */ |
| 337 | tex2oord[2] = (GLfloat) surface->w / w; /* Max X */ |
23 | tex2oord[2] = 1.F; /* Max X */ |
| 338 | tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */ |
24 | tex2oord[3] = 1.F; /* Max Y */ |
| 339 | |
25 | |
| 340 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, |
26 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, surface->w, surface->h, 32, |
| 341 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
27 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
| 342 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
28 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
| 343 | #else |
29 | #else |
| 344 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
30 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
| 345 | #endif |
31 | #endif |
| … | |
… | |
| 364 | /* Restore the alpha blending attributes */ |
50 | /* Restore the alpha blending attributes */ |
| 365 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
51 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
| 366 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
52 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
| 367 | |
53 | |
| 368 | /* Create an OpenGL texture for the image */ |
54 | /* Create an OpenGL texture for the image */ |
| 369 | glGenTextures (1, &textur); |
55 | glGenTextures (1, &name); |
| 370 | glBindTexture (GL_TEXTURE_2D, textur); |
56 | glBindTexture (GL_TEXTURE_2D, name); |
| 371 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
57 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| 372 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); |
58 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); |
| 373 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); // GENERATE_MIPMAP_SGIS |
59 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE); |
| 374 | glTexImage2D (GL_TEXTURE_2D, |
60 | glTexImage2D (GL_TEXTURE_2D, |
| 375 | 0, |
61 | 0, |
| 376 | GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
62 | GL_RGBA, surface->w, surface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
| 377 | SDL_FreeSurface (image); /* No longer needed */ |
63 | SDL_FreeSurface (image); /* No longer needed */ |
| 378 | |
64 | |
| 379 | return textur; |
65 | return name; |
| 380 | } |
66 | } |
| 381 | |
67 | |
| 382 | CGcontext cgc; |
68 | material::~material () |
| 383 | |
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| 384 | void |
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| 385 | init_shaders () |
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| 386 | { |
69 | { |
| 387 | cgc = cgCreateContext (); |
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| 388 | } |
70 | } |
| 389 | |
71 | |
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72 | void material::enable (view &ctx) |
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73 | { |
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74 | pass_data::matmap_t &matmap = ctx.pass->matmap; |
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75 | |
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76 | pass_data::matmap_t::iterator i = matmap.find (this); |
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77 | |
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78 | if (i == matmap.end ()) |
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79 | { |
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80 | string vsh_src, fsh_src; |
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81 | |
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82 | shader::shader_builder::start (); |
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83 | |
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84 | if (ctx.pass->l) |
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85 | ctx.pass->l->vsh (); |
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86 | |
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87 | vsh (ctx); |
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88 | |
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89 | // compute logarithmic depth - see the frustum matrix in view.C |
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90 | { |
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91 | using namespace shader::compile; |
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92 | |
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93 | temp_1f lz; |
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94 | |
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95 | // TODO: negative z is not calculated in an acceptable way, clipping does horrible things(?) |
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96 | lz = z (vout.position); |
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97 | z (vout.position) = (ifelse ( |
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98 | lz < 0, |
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99 | lz, |
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100 | log (lz) * (2 / log (1e10)) |
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101 | ) - 1) * w (vout.position); |
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102 | } |
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103 | |
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104 | vsh_src = shader::shader_builder::stop (); |
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105 | |
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106 | shader::shader_builder::start (); |
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107 | |
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108 | if (ctx.pass->l) |
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109 | { |
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110 | ctx.pass->l->fsh (); |
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111 | |
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112 | fsh (ctx); |
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113 | } |
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114 | else |
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115 | shader::compile::fout.frag_color = shader::compile::float4 (1., 0., 1., 1.); |
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116 | |
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117 | fsh_src = shader::shader_builder::stop (); |
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118 | |
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119 | shader::program_object po = shader::get_program (vsh_src, fsh_src); |
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120 | matmap.insert (pass_data::matmap_t::value_type (this, po)); |
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121 | |
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122 | po->enable (); |
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123 | } |
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124 | else |
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125 | i->second->enable (); |
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126 | |
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127 | if (ctx.pass->l) |
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128 | ctx.pass->l->enable (); |
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129 | } |
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130 | |
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131 | void material::disable (view &ctx) |
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132 | { |
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133 | } |
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134 | |
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135 | test_material::test_material () |
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136 | //: tex ("textures/osama.jpg"), texvar (tex.name) |
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137 | : tex ("textures/rockwall.jpg"), texvar (tex.name) |
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138 | , norm ("textures/rockwall_normal.jpg"), normvar (norm.name) |
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139 | { |
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140 | } |
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141 | |
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142 | static shader::varying_3f normal; |
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143 | static shader::varying_2f texcoord; |
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144 | |
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145 | void test_material::vsh (view &ctx) |
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146 | { |
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147 | using namespace shader::compile; |
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148 | |
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149 | std_vsh (); |
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150 | |
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151 | if (ctx.pass->l) |
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152 | { |
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153 | texcoord = xy (vin.tex_coord[0]); |
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154 | normal = normal_matrix * vin.normal; |
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155 | } |
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156 | } |
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157 | |
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158 | void test_material::fsh (view &ctx) |
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159 | { |
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160 | using namespace shader::compile; |
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161 | |
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162 | if (ctx.pass->l) |
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163 | { |
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164 | temp_3f lc; |
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165 | temp_1f fac; |
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166 | |
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167 | temp_3f rot1, rot2, rot3; |
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168 | |
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169 | yxz (rot1) = (texture_2d (normvar, texcoord) * 2.F - 1.F); |
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170 | |
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171 | //rot1 = normal_matrix * rot1; |
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172 | |
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173 | rot2 = float3 (x(rot1), z(rot1), -y(rot1)); |
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174 | rot3 = float3 (y(rot1), -x(rot1), z(rot1)); |
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175 | |
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176 | normal = mat3 (rot1, rot2, rot3) * normal; |
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177 | |
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178 | fac = dot (normalize (normal), normalize (ctx.pass->l->sh_lightvec)); |
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179 | fac = max (pow (max (fac, 0.0), 6), 0.3); |
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180 | xyz (fout.frag_color) = (texture_2d (texvar, texcoord) + 0.2F) * fac |
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181 | * ctx.pass->l->sh_colour; |
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182 | //xyz (fout.frag_color) = lc * fac; |
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183 | } |
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184 | } |
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185 | |
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186 | void test_material::enable (view &ctx) |
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187 | { |
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188 | material::enable (ctx); |
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189 | texvar->enable (); |
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190 | normvar->enable (); |
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191 | } |
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192 | |
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193 | void test_material::disable (view &ctx) |
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194 | { |
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195 | normvar->disable (); |
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196 | texvar->disable (); |
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197 | material::disable (ctx); |
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198 | } |
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199 | |
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200 | test_material *testmat; |
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201 | |
