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Comparing cvsroot/libgender/material.C (file contents):
Revision 1.8 by root, Thu Oct 21 15:46:38 2004 UTC vs.
Revision 1.18 by root, Fri Oct 29 17:21:54 2004 UTC

1#include "opengl.h"
2#include "material.h"
3
4#include <cstdlib> 1#include <cstdlib>
5#include <cstring> 2#include <cstring>
6 3
7namespace 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 10
59material::~material () 11material::~material ()
60{ 12{
61} 13}
62 14
63void 15void
64simple_material::begin () 16simple_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
72void 24void
73simple_material::end () 25simple_material::disable (view &ctx)
74{ 26{
75}
76
77void
78osama_material::begin ()
79{
80 cgGLEnableProfile (vsh_profile);
81 cgGLEnableProfile (fsh_profile);
82 cgGLEnableTextureParameter (g_Texture);
83}
84
85void
86osama_material::end ()
87{
88 cgGLDisableTextureParameter (g_Texture);
89 // cgGLUnbindProgram (vsh_profile);
90 // cgGLUnbindProgram (fsh_profile);
91 cgGLDisableProfile (vsh_profile);
92 cgGLDisableProfile (fsh_profile);
93} 27}
94 28
95GLuint 29GLuint
96texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord) 30texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord)
97{ 31{
98 GLuint textur; 32 GLuint name;
99 int w, h; 33 int w, h;
100 SDL_Surface *image; 34 SDL_Surface *image;
101 SDL_Rect area; 35 SDL_Rect area;
102 Uint32 saved_flags; 36 Uint32 saved_flags;
103 Uint8 saved_alpha; 37 Uint8 saved_alpha;
… …
139 /* Restore the alpha blending attributes */ 73 /* Restore the alpha blending attributes */
140 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) 74 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
141 SDL_SetAlpha (surface, saved_flags, saved_alpha); 75 SDL_SetAlpha (surface, saved_flags, saved_alpha);
142 76
143 /* Create an OpenGL texture for the image */ 77 /* Create an OpenGL texture for the image */
144 glGenTextures (1, &textur); 78 glGenTextures (1, &name);
145 glBindTexture (GL_TEXTURE_2D, textur); 79 glBindTexture (GL_TEXTURE_2D, name);
146 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 80 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
147 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); 81 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 82 glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
149 glTexImage2D (GL_TEXTURE_2D, 83 glTexImage2D (GL_TEXTURE_2D,
150 0, 84 0,
151 GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); 85 GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
152 SDL_FreeSurface (image); /* No longer needed */ 86 SDL_FreeSurface (image); /* No longer needed */
153 87
154 return textur; 88 return name;
155} 89}
156 90
157CGcontext cgc; 91test_material::test_material ()
92: tex ("textures/osama.jpg"), texvar (tex.name)
93{
94 using namespace shader;
158 95
159void 96 p.vsh->start ();
160init_shaders () 97
161{ 98 temp_4f wpos;
162 cgc = cgCreateContext (); 99
100 wpos = shader::gl.model_view_projection_matrix * vin.vertex;
101
102 vout.position = wpos;
103 vout.tex_coord[0] = vin.tex_coord[0];
104 vout.tex_coord[1] = shader::gl.model_view_matrix * shader::vec4 (x (vin.normal), y(vin.normal), z(vin.normal), 0);
105
106 p.vsh->end ();
107 p.vsh->compile ();
108
109 p.fsh->start ();
110
111 temp_1f fac;
112
113 fac = max (dot (fin.tex_coord[1], lightpos), 0.0);
114 fac = pow (fac, 3);
115 xyz(fout.frag_color) = texture_2d (texvar, fin.tex_coord[0]) * (fac + 0.3);
116
117 p.fsh->end ();
118 p.fsh->compile ();
119 p.link ();
163} 120}
164 121
122void test_material::enable (view &ctx)
123{
124 p.enable ();
125 lightpos->set (-ctx.d);
126 texvar->enable ();
127}
128
129void test_material::disable (view &ctx)
130{
131 texvar->disable ();
132 p.disable ();
133}
134

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