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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" |
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8 | #include "view.h" |
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9 | #include "util.h" |
3 | |
10 | |
4 | material::~material () |
11 | material::~material () |
5 | { |
12 | { |
6 | } |
13 | } |
7 | |
14 | |
8 | void |
15 | void |
9 | simple_material::begin () |
16 | simple_material::enable (view &ctx) |
10 | { |
17 | { |
11 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
18 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
12 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
19 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
13 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
20 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
14 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
21 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
15 | } |
22 | } |
16 | |
23 | |
17 | void |
24 | void |
18 | simple_material::end () |
25 | simple_material::disable (view &ctx) |
19 | { |
26 | { |
20 | } |
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21 | |
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22 | void |
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23 | osama_material::begin () |
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24 | { |
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25 | cgGLEnableProfile (vsh_profile); |
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26 | cgGLEnableProfile (fsh_profile); |
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27 | cgGLEnableTextureParameter (g_Texture); |
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28 | } |
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29 | |
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30 | void |
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31 | osama_material::end () |
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32 | { |
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33 | cgGLDisableTextureParameter (g_Texture); |
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34 | // cgGLUnbindProgram (vsh_profile); |
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35 | // cgGLUnbindProgram (fsh_profile); |
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36 | cgGLDisableProfile (vsh_profile); |
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37 | cgGLDisableProfile (fsh_profile); |
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38 | } |
27 | } |
39 | |
28 | |
40 | GLuint |
29 | GLuint |
41 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
30 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
42 | { |
31 | { |
43 | GLuint textur; |
32 | GLuint name; |
44 | int w, h; |
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45 | SDL_Surface *image; |
33 | SDL_Surface *image; |
46 | SDL_Rect area; |
34 | SDL_Rect area; |
47 | Uint32 saved_flags; |
35 | Uint32 saved_flags; |
48 | Uint8 saved_alpha; |
36 | Uint8 saved_alpha; |
49 | |
37 | |
50 | /* Use the surface width and height expanded to powers of 2 */ |
38 | /* Use the surface width and height expanded to powers of 2 */ |
51 | //w = power_of_two (surface->w); |
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52 | //h = power_of_two (surface->h); |
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53 | w = power_of_two (surface->w); |
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54 | h = power_of_two (surface->h); |
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55 | tex2oord[0] = 0.0f; /* Min X */ |
39 | tex2oord[0] = 0.F; /* Min X */ |
56 | tex2oord[1] = 0.0f; /* Min Y */ |
40 | tex2oord[1] = 0.F; /* Min Y */ |
57 | tex2oord[2] = (GLfloat) surface->w / w; /* Max X */ |
41 | tex2oord[2] = 1.F; /* Max X */ |
58 | tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */ |
42 | tex2oord[3] = 1.F; /* Max Y */ |
59 | |
43 | |
60 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, |
44 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, surface->w, surface->h, 32, |
61 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
45 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
62 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
46 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
63 | #else |
47 | #else |
64 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
48 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
65 | #endif |
49 | #endif |
… | |
… | |
84 | /* Restore the alpha blending attributes */ |
68 | /* Restore the alpha blending attributes */ |
85 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
69 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
86 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
70 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
87 | |
71 | |
88 | /* Create an OpenGL texture for the image */ |
72 | /* Create an OpenGL texture for the image */ |
89 | glGenTextures (1, &textur); |
73 | glGenTextures (1, &name); |
90 | glBindTexture (GL_TEXTURE_2D, textur); |
74 | glBindTexture (GL_TEXTURE_2D, name); |
91 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
75 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
92 | 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); |
93 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); // GENERATE_MIPMAP_SGIS |
77 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE); |
94 | glTexImage2D (GL_TEXTURE_2D, |
78 | glTexImage2D (GL_TEXTURE_2D, |
95 | 0, |
79 | 0, |
96 | 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); |
97 | SDL_FreeSurface (image); /* No longer needed */ |
81 | SDL_FreeSurface (image); /* No longer needed */ |
98 | |
82 | |
99 | return textur; |
83 | return name; |
100 | } |
84 | } |
101 | |
85 | |
102 | 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.tga"), texvar (tex.name) |
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89 | , norm ("textures/rockwall_height.tga"), normvar (norm.name) |
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90 | { |
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91 | using namespace shader::compile; |
103 | |
92 | |
104 | void |
93 | p.vsh->start (); |
105 | init_shaders () |
94 | |
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95 | temp_4f wpos; |
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96 | |
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97 | wpos = model_view_projection_matrix * vin.vertex; |
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98 | |
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99 | //wpos = wpos / abs (w (wpos)); |
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100 | |
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101 | vout.position = wpos; |
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102 | vout.tex_coord[0] = vin.tex_coord[0]; |
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103 | vout.tex_coord[1] = model_view_matrix * shader::compile::vec4 (x(vin.normal), y(vin.normal), z(vin.normal), 0); |
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104 | vout.tex_coord[2] = lightpos - model_view_matrix * vin.vertex; |
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105 | |
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106 | p.vsh->end (); |
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107 | p.vsh->compile (); |
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108 | |
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109 | p.fsh->start (); |
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110 | |
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111 | temp_1f fac; |
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112 | |
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113 | temp_2f disp; |
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114 | |
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115 | temp_1f dx, dy; |
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116 | |
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117 | temp_1f bumpnormal; |
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118 | dx = dFdx (texture_2d (normvar, fin.tex_coord[0])); |
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119 | dy = dFdy (texture_2d (normvar, fin.tex_coord[0])); |
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120 | |
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121 | disp = shader::compile::vec2 (dx, dy) * 0.1; |
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122 | |
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123 | fac = dot (normalize (fin.tex_coord[1]), normalize (fin.tex_coord[2])); |
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124 | //fac = dot (shader::compile::vec3 (normalize (fin.tex_coord[1]) + normalize (fin.tex_coord[2])) * 0.5, bumpnormal); |
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125 | //fac = dot (bumpnormal, normalize (fin.tex_coord[2])); |
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126 | //fac = pow (max (fac, 0.0), 8); |
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127 | xyz (fout.frag_color) = (texture_2d (texvar, fin.tex_coord[0] - disp) + 0.1) * max (fac, 0.0); |
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128 | |
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129 | p.fsh->end (); |
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130 | p.fsh->compile (); |
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131 | p.link (); |
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132 | } |
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133 | |
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134 | void test_material::enable (view &ctx) |
106 | { |
135 | { |
107 | cgc = cgCreateContext (); |
136 | p.enable (); |
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137 | lightpos->set (vec3 (0, 0, 0)); |
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138 | texvar->enable (); |
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139 | normvar->enable (); |
108 | } |
140 | } |
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141 | |
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142 | void test_material::disable (view &ctx) |
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143 | { |
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144 | normvar->disable (); |
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145 | texvar->disable (); |
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146 | p.disable (); |
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147 | } |
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148 | |