1 | #include "opengl.h" |
|
|
2 | #include "material.h" |
|
|
3 | |
|
|
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) |
|
|
14 | { |
|
|
15 | name = ++next_name; |
|
|
16 | param = cgCreateParameter (cg_context, cgtype); |
|
|
17 | } |
|
|
18 | |
|
|
19 | var_i::~var_i () |
|
|
20 | { |
|
|
21 | cgDestroyParameter (param); |
|
|
22 | } |
|
|
23 | |
|
|
24 | void var_i::build (shader_builder &b) |
|
|
25 | { |
|
|
26 | abort (); |
|
|
27 | } |
|
|
28 | |
|
|
29 | void var_i::build_decl (shader_builder &b) |
|
|
30 | { |
|
|
31 | abort (); |
|
|
32 | } |
|
|
33 | |
|
|
34 | template<int dimension, GLenum gltype, CGtype cgtype> |
|
|
35 | varying_i<dimension, gltype, cgtype>::varying_i (const char *binding) |
|
|
36 | : var_i (cgtype) |
|
|
37 | { |
|
|
38 | strcpy (this->binding, binding); |
|
|
39 | } |
|
|
40 | |
|
|
41 | varying_3f_i position_3f_i ("POSITION"); |
|
|
42 | varying_3f_i normal_3f_i ("NORMAL"); |
|
|
43 | varying_3f_i color0_3f_i ("COLOR0"); |
|
|
44 | varying_3f_i color1_3f_i ("COLOR1"); |
|
|
45 | varying_2f_i texcoord0_2f_i ("TEXCOORD0"); |
|
|
46 | varying_2f_i texcoord1_2f_i ("TEXCOORD1"); |
|
|
47 | varying_2f_i texcoord2_2f_i ("TEXCOORD2"); |
|
|
48 | varying_2f_i texcoord3_2f_i ("TEXCOORD3"); |
|
|
49 | varying_2f_i texcoord4_2f_i ("TEXCOORD4"); |
|
|
50 | varying_2f_i texcoord5_2f_i ("TEXCOORD5"); |
|
|
51 | varying_2f_i texcoord6_2f_i ("TEXCOORD6"); |
|
|
52 | varying_2f_i texcoord7_2f_i ("TEXCOORD7"); |
|
|
53 | varying_1f_i psize_1f_i ("PSIZE"); |
|
|
54 | varying_1f_i attr6_1f_i ("ATTR6"), attr7_1f_i ("ATTR7"); |
|
|
55 | varying_2f_i attr6_2f_i ("ATTR6"), attr7_2f_i ("ATTR7"); |
|
|
56 | varying_3f_i attr6_3f_i ("ATTR6"), attr7_3f_i ("ATTR7"); |
|
|
57 | } |
|
|
58 | |
|
|
59 | material::~material () |
|
|
60 | { |
|
|
61 | } |
|
|
62 | |
|
|
63 | void |
|
|
64 | simple_material::begin () |
|
|
65 | { |
|
|
66 | glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse); |
|
|
67 | glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular); |
|
|
68 | glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission); |
|
|
69 | glMaterialf (GL_FRONT, GL_SHININESS, shininess); |
|
|
70 | } |
|
|
71 | |
|
|
72 | void |
|
|
73 | simple_material::end () |
|
|
74 | { |
|
|
75 | } |
|
|
76 | |
|
|
77 | void |
|
|
78 | osama_material::begin () |
|
|
79 | { |
|
|
80 | cgGLEnableProfile (vsh_profile); |
|
|
81 | cgGLEnableProfile (fsh_profile); |
|
|
82 | cgGLEnableTextureParameter (g_Texture); |
|
|
83 | } |
|
|
84 | |
|
|
85 | void |
|
|
86 | osama_material::end () |
|
|
87 | { |
|
|
88 | cgGLDisableTextureParameter (g_Texture); |
|
|
89 | // cgGLUnbindProgram (vsh_profile); |
|
|
90 | // cgGLUnbindProgram (fsh_profile); |
|
|
91 | cgGLDisableProfile (vsh_profile); |
|
|
92 | cgGLDisableProfile (fsh_profile); |
|
|
93 | } |
|
|
94 | |
10 | |
95 | GLuint |
11 | GLuint |
96 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
12 | texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) |
97 | { |
13 | { |
98 | GLuint textur; |
14 | GLuint name; |
99 | int w, h; |
|
|
100 | SDL_Surface *image; |
15 | SDL_Surface *image; |
101 | SDL_Rect area; |
16 | SDL_Rect area; |
102 | Uint32 saved_flags; |
17 | Uint32 saved_flags; |
103 | Uint8 saved_alpha; |
18 | Uint8 saved_alpha; |
104 | |
19 | |
105 | /* Use the surface width and height expanded to powers of 2 */ |
20 | /* Use the surface width and height expanded to powers of 2 */ |
106 | //w = power_of_two (surface->w); |
|
|
107 | //h = power_of_two (surface->h); |
|
|
108 | w = power_of_two (surface->w); |
|
|
109 | h = power_of_two (surface->h); |
|
|
110 | tex2oord[0] = 0.0f; /* Min X */ |
21 | tex2oord[0] = 0.F; /* Min X */ |
111 | tex2oord[1] = 0.0f; /* Min Y */ |
22 | tex2oord[1] = 0.F; /* Min Y */ |
112 | tex2oord[2] = (GLfloat) surface->w / w; /* Max X */ |
23 | tex2oord[2] = 1.F; /* Max X */ |
113 | tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */ |
24 | tex2oord[3] = 1.F; /* Max Y */ |
114 | |
25 | |
115 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, |
26 | image = SDL_CreateRGBSurface (SDL_SWSURFACE, surface->w, surface->h, 32, |
116 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
27 | #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
117 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
28 | 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
118 | #else |
29 | #else |
119 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
30 | 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
120 | #endif |
31 | #endif |
… | |
… | |
139 | /* Restore the alpha blending attributes */ |
50 | /* Restore the alpha blending attributes */ |
140 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
51 | if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) |
141 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
52 | SDL_SetAlpha (surface, saved_flags, saved_alpha); |
142 | |
53 | |
143 | /* Create an OpenGL texture for the image */ |
54 | /* Create an OpenGL texture for the image */ |
144 | glGenTextures (1, &textur); |
55 | glGenTextures (1, &name); |
145 | glBindTexture (GL_TEXTURE_2D, textur); |
56 | glBindTexture (GL_TEXTURE_2D, name); |
146 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
57 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
147 | 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); |
148 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); // GENERATE_MIPMAP_SGIS |
59 | glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE); |
149 | glTexImage2D (GL_TEXTURE_2D, |
60 | glTexImage2D (GL_TEXTURE_2D, |
150 | 0, |
61 | 0, |
151 | 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); |
152 | SDL_FreeSurface (image); /* No longer needed */ |
63 | SDL_FreeSurface (image); /* No longer needed */ |
153 | |
64 | |
154 | return textur; |
65 | return name; |
155 | } |
66 | } |
156 | |
67 | |
157 | CGcontext cgc; |
68 | material::~material () |
158 | |
|
|
159 | void |
|
|
160 | init_shaders () |
|
|
161 | { |
69 | { |
162 | cgc = cgCreateContext (); |
|
|
163 | } |
70 | } |
164 | |
71 | |
|
|
72 | void material::enable (view &ctx) |
|
|
73 | { |
|
|
74 | pass::matmap_t &matmap = ctx.pass_data->matmap; |
|
|
75 | |
|
|
76 | pass::matmap_t::iterator i = matmap.find (this); |
|
|
77 | |
|
|
78 | if (i == matmap.end ()) |
|
|
79 | { |
|
|
80 | string vsh_src, fsh_src; |
|
|
81 | |
|
|
82 | shader::shader_builder::start (); |
|
|
83 | |
|
|
84 | if (ctx.pass_data->l) |
|
|
85 | ctx.pass_data->l->vsh (); |
|
|
86 | |
|
|
87 | vsh (ctx); |
|
|
88 | |
|
|
89 | { |
|
|
90 | using namespace shader::compile; |
|
|
91 | |
|
|
92 | //z (vout.position) = log2 (z (vout.position) / w (vout.position)) * w (vout.position); |
|
|
93 | } |
|
|
94 | |
|
|
95 | vsh_src = shader::shader_builder::stop (); |
|
|
96 | |
|
|
97 | shader::shader_builder::start (); |
|
|
98 | |
|
|
99 | if (ctx.pass_data->l) |
|
|
100 | { |
|
|
101 | ctx.pass_data->l->fsh (); |
|
|
102 | |
|
|
103 | fsh (ctx); |
|
|
104 | } |
|
|
105 | else |
|
|
106 | shader::compile::fout.frag_color = shader::compile::float4 (1., 0., 1., 1.); |
|
|
107 | |
|
|
108 | fsh_src = shader::shader_builder::stop (); |
|
|
109 | |
|
|
110 | shader::program_object po = shader::get_program (vsh_src, fsh_src); |
|
|
111 | matmap.insert (pass::matmap_t::value_type (this, po)); |
|
|
112 | |
|
|
113 | po->enable (); |
|
|
114 | } |
|
|
115 | else |
|
|
116 | i->second->enable (); |
|
|
117 | } |
|
|
118 | |
|
|
119 | void material::disable (view &ctx) |
|
|
120 | { |
|
|
121 | } |
|
|
122 | |
|
|
123 | test_material::test_material () |
|
|
124 | //: tex ("textures/osama.jpg"), texvar (tex.name) |
|
|
125 | : tex ("textures/rockwall.jpg"), texvar (tex.name) |
|
|
126 | , norm ("textures/rockwall_normal.jpg"), normvar (norm.name) |
|
|
127 | { |
|
|
128 | } |
|
|
129 | |
|
|
130 | static shader::varying_3f normal; |
|
|
131 | static shader::varying_2f texcoord; |
|
|
132 | |
|
|
133 | void test_material::vsh (view &ctx) |
|
|
134 | { |
|
|
135 | using namespace shader::compile; |
|
|
136 | |
|
|
137 | std_vsh (); |
|
|
138 | |
|
|
139 | if (ctx.pass_data->l) |
|
|
140 | { |
|
|
141 | texcoord = xy (vin.tex_coord[0]); |
|
|
142 | normal = normal_matrix * vin.normal; |
|
|
143 | } |
|
|
144 | } |
|
|
145 | |
|
|
146 | void test_material::fsh (view &ctx) |
|
|
147 | { |
|
|
148 | using namespace shader::compile; |
|
|
149 | |
|
|
150 | if (ctx.pass_data->l) |
|
|
151 | { |
|
|
152 | temp_3f lc; |
|
|
153 | temp_1f fac; |
|
|
154 | |
|
|
155 | temp_3f rot1, rot2, rot3; |
|
|
156 | |
|
|
157 | yxz (rot1) = (texture_2d (normvar, texcoord) * 2.F - 1.F); |
|
|
158 | |
|
|
159 | //rot1 = normal_matrix * rot1; |
|
|
160 | |
|
|
161 | rot2 = float3 (x(rot1), z(rot1), -y(rot1)); |
|
|
162 | rot3 = float3 (y(rot1), -x(rot1), z(rot1)); |
|
|
163 | |
|
|
164 | normal = mat3 (rot1, rot2, rot3) * normal; |
|
|
165 | |
|
|
166 | fac = dot (normalize (normal), normalize (ctx.pass_data->l->sh_lightvec)); |
|
|
167 | fac = max (pow (max (fac, 0.0), 6), 0.3); |
|
|
168 | xyz (fout.frag_color) = (texture_2d (texvar, texcoord) + 0.2F) * fac |
|
|
169 | * ctx.pass_data->l->sh_colour; |
|
|
170 | //xyz (fout.frag_color) = lc * fac; |
|
|
171 | } |
|
|
172 | } |
|
|
173 | |
|
|
174 | void test_material::enable (view &ctx) |
|
|
175 | { |
|
|
176 | material::enable (ctx); |
|
|
177 | texvar->enable (); |
|
|
178 | normvar->enable (); |
|
|
179 | } |
|
|
180 | |
|
|
181 | void test_material::disable (view &ctx) |
|
|
182 | { |
|
|
183 | normvar->disable (); |
|
|
184 | texvar->disable (); |
|
|
185 | material::disable (ctx); |
|
|
186 | } |
|
|
187 | |
|
|
188 | test_material *testmat; |
|
|
189 | |