1 | #include "opengl.h" |
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2 | #include "material.h" |
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3 | |
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4 | #include <cstdlib> |
1 | #include <cstdlib> |
5 | #include <cstring> |
2 | #include <cstring> |
6 | |
3 | |
7 | namespace shader { |
4 | #include <algorithm> |
8 | |
5 | |
9 | static CGcontext cg_context = cgCreateContext (); |
6 | #include "opengl.h" |
10 | |
7 | #include "material.h" |
11 | int var_i::next_name = 0; |
8 | #include "view.h" |
12 | |
9 | #include "util.h" |
13 | var_i::var_i (CGtype cgtype) |
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14 | { |
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15 | name = ++next_name; |
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16 | param = cgCreateParameter (cg_context, cgtype); |
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17 | } |
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18 | |
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19 | var_i::~var_i () |
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20 | { |
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21 | cgDestroyParameter (param); |
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22 | } |
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23 | |
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24 | void var_i::build (shader_builder &b) |
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25 | { |
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26 | abort (); |
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27 | } |
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28 | |
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29 | void var_i::build_decl (shader_builder &b) |
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30 | { |
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31 | abort (); |
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32 | } |
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33 | |
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34 | template<int dimension, GLenum gltype, CGtype cgtype> |
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35 | varying_i<dimension, gltype, cgtype>::varying_i (const char *binding) |
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36 | : var_i (cgtype) |
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37 | { |
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38 | strcpy (this->binding, binding); |
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39 | } |
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40 | |
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41 | varying_3f_i position_3f_i ("POSITION"); |
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42 | varying_3f_i normal_3f_i ("NORMAL"); |
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43 | varying_3f_i color0_3f_i ("COLOR0"); |
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44 | varying_3f_i color1_3f_i ("COLOR1"); |
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45 | varying_2f_i texcoord0_2f_i ("TEXCOORD0"); |
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46 | varying_2f_i texcoord1_2f_i ("TEXCOORD1"); |
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47 | varying_2f_i texcoord2_2f_i ("TEXCOORD2"); |
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48 | varying_2f_i texcoord3_2f_i ("TEXCOORD3"); |
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49 | varying_2f_i texcoord4_2f_i ("TEXCOORD4"); |
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50 | varying_2f_i texcoord5_2f_i ("TEXCOORD5"); |
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51 | varying_2f_i texcoord6_2f_i ("TEXCOORD6"); |
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52 | varying_2f_i texcoord7_2f_i ("TEXCOORD7"); |
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53 | varying_1f_i psize_1f_i ("PSIZE"); |
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54 | varying_1f_i attr6_1f_i ("ATTR6"), attr7_1f_i ("ATTR7"); |
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55 | varying_2f_i attr6_2f_i ("ATTR6"), attr7_2f_i ("ATTR7"); |
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56 | varying_3f_i attr6_3f_i ("ATTR6"), attr7_3f_i ("ATTR7"); |
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57 | } |
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58 | |
10 | |
59 | material::~material () |
11 | material::~material () |
60 | { |
12 | { |
61 | } |
13 | } |
62 | |
14 | |
63 | void |
15 | void |
64 | simple_material::begin () |
16 | simple_material::enable (view &ctx) |
65 | { |
17 | { |
66 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
18 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
67 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
19 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
68 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
20 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
69 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
21 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
70 | } |
22 | } |
71 | |
23 | |
72 | void |
24 | void |
73 | simple_material::end () |
25 | simple_material::disable (view &ctx) |
74 | { |
26 | { |
75 | } |
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76 | |
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77 | void |
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78 | osama_material::begin () |
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79 | { |
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80 | cgGLEnableProfile (vsh_profile); |
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81 | cgGLEnableProfile (fsh_profile); |
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82 | cgGLEnableTextureParameter (g_Texture); |
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83 | } |
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84 | |
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85 | void |
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86 | osama_material::end () |
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87 | { |
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88 | cgGLDisableTextureParameter (g_Texture); |
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89 | // cgGLUnbindProgram (vsh_profile); |
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90 | // cgGLUnbindProgram (fsh_profile); |
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91 | cgGLDisableProfile (vsh_profile); |
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92 | cgGLDisableProfile (fsh_profile); |
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93 | } |
27 | } |
94 | |
28 | |
95 | GLuint |
29 | GLuint |
96 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
30 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
97 | { |
31 | { |
98 | GLuint textur; |
32 | GLuint name; |
99 | int w, h; |
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100 | SDL_Surface *image; |
33 | SDL_Surface *image; |
101 | SDL_Rect area; |
34 | SDL_Rect area; |
102 | Uint32 saved_flags; |
35 | Uint32 saved_flags; |
103 | Uint8 saved_alpha; |
36 | Uint8 saved_alpha; |
104 | |
37 | |
105 | /* Use the surface width and height expanded to powers of 2 */ |
38 | /* Use the surface width and height expanded to powers of 2 */ |
106 | //w = power_of_two (surface->w); |
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107 | //h = power_of_two (surface->h); |
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108 | w = power_of_two (surface->w); |
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109 | h = power_of_two (surface->h); |
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110 | tex2oord[0] = 0.0f; /* Min X */ |
39 | tex2oord[0] = 0.F; /* Min X */ |
111 | tex2oord[1] = 0.0f; /* Min Y */ |
40 | tex2oord[1] = 0.F; /* Min Y */ |
112 | tex2oord[2] = (GLfloat) surface->w / w; /* Max X */ |
41 | tex2oord[2] = 1.F; /* Max X */ |
113 | tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */ |
42 | tex2oord[3] = 1.F; /* Max Y */ |
114 | |
43 | |
115 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, |
44 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, surface->w, surface->h, 32, |
116 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
45 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
117 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
46 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
118 | #else |
47 | #else |
119 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
48 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
120 | #endif |
49 | #endif |
… | |
… | |
139 | /* Restore the alpha blending attributes */ |
68 | /* Restore the alpha blending attributes */ |
140 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
69 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
141 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
70 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
142 | |
71 | |
143 | /* Create an OpenGL texture for the image */ |
72 | /* Create an OpenGL texture for the image */ |
144 | glGenTextures (1, &textur); |
73 | glGenTextures (1, &name); |
145 | glBindTexture (GL_TEXTURE_2D, textur); |
74 | glBindTexture (GL_TEXTURE_2D, name); |
146 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
75 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
147 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); |
76 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); |
148 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); // GENERATE_MIPMAP_SGIS |
77 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE); |
149 | glTexImage2D (GL_TEXTURE_2D, |
78 | glTexImage2D (GL_TEXTURE_2D, |
150 | 0, |
79 | 0, |
151 | GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
80 | GL_RGBA, surface->w, surface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); |
152 | SDL_FreeSurface (image); /* No longer needed */ |
81 | SDL_FreeSurface (image); /* No longer needed */ |
153 | |
82 | |
154 | return textur; |
83 | return name; |
155 | } |
84 | } |
156 | |
85 | |
157 | CGcontext cgc; |
86 | test_material::test_material () |
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87 | //: tex ("textures/osama.jpg"), texvar (tex.name) |
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88 | : tex ("textures/rockwall.jpg"), texvar (tex.name) |
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89 | , norm ("textures/rockwall_height.jpg"), normvar (norm.name) |
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90 | { |
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91 | using namespace shader::compile; |
158 | |
92 | |
159 | void |
93 | shader_builder::start (); |
160 | init_shaders () |
94 | |
161 | { |
95 | temp_4f wpos; |
162 | cgc = cgCreateContext (); |
96 | varying_1f camdist, zpos; |
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97 | varying_2f texcoord; |
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98 | varying_3f lightvec, normal; |
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99 | |
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100 | wpos = model_view_matrix * vin.vertex; |
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101 | |
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102 | temp_1f wz; |
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103 | //wz = log2 (abs (wz)) * sign (wz); |
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104 | |
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105 | vout.position = projection_matrix * wpos; |
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106 | texcoord = xy (vin.tex_coord[0]); |
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107 | normal = normal_matrix * vin.normal; |
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108 | lightvec = xyz (lightpos - model_view_matrix * vin.vertex); |
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109 | camdist = 1 - max (length (lightvec) / 10000., 0); |
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110 | |
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111 | p->vsh->compile (shader_builder::stop ()); |
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112 | |
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113 | shader_builder::start (); |
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114 | |
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115 | temp_1f fac; |
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116 | temp_2f disp; |
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117 | temp_1f dx, dy; |
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118 | temp_1f bumpnormal; |
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119 | temp_1f dist; |
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120 | |
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121 | fac = dot (normalize (normal), normalize (lightvec)); |
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122 | //fac = dot (shader::compile::vec3 (normalize (fin.tex_coord[1]) + normalize (fin.tex_coord[2])) * 0.5, bumpnormal); |
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123 | //fac = dot (bumpnormal, normalize (fin.tex_coord[2])); |
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124 | fac = pow (max (fac, 0.0), 2); |
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125 | xyz (fout.frag_color) = texture_2d (texvar, texcoord) * (fac + 0.4) * camdist; |
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126 | |
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127 | p->fsh->compile (shader_builder::stop ()); |
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128 | p->link (); |
163 | } |
129 | } |
164 | |
130 | |
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131 | void test_material::enable (view &ctx) |
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132 | { |
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133 | p->enable (); |
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134 | lightpos->set (vec3 (0, 0, 0)); |
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135 | texvar->enable (); |
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136 | normvar->enable (); |
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137 | } |
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138 | |
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139 | void test_material::disable (view &ctx) |
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140 | { |
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141 | normvar->disable (); |
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142 | texvar->disable (); |
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143 | p->disable (); |
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144 | } |
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145 | |