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/cvs/cvsroot/libgender/material.C
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Comparing cvsroot/libgender/material.C (file contents):
Revision 1.4 by root, Sun Oct 10 20:22:33 2004 UTC vs.
Revision 1.16 by root, Fri Oct 29 16:02:22 2004 UTC

1#include <cstdlib>
2#include <cstring>
3
4#include <algorithm>
5
1#include "opengl.h" 6#include "opengl.h"
2#include "material.h" 7#include "material.h"
8#include "util.h"
3 9
4material::~material () 10material::~material ()
5{ 11{
6} 12}
7 13
14void
8void simple_material::begin () 15simple_material::enable ()
9{ 16{
10 glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *)&diffuse); 17 glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse);
11 glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *)&specular); 18 glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular);
12 glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *)&emission); 19 glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission);
13 glMaterialf (GL_FRONT, GL_SHININESS, shininess); 20 glMaterialf (GL_FRONT, GL_SHININESS, shininess);
14} 21}
15 22
23void
16void simple_material::end () 24simple_material::disable ()
17{ 25{
18} 26}
19void osama_material::begin () 27
28GLuint
29texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord)
20{ 30{
21 cgGLEnableProfile (vsh_profile); 31 GLuint name;
22 cgGLEnableProfile (fsh_profile);
23 cgGLEnableTextureParameter(g_Texture);
24}
25void osama_material::end ()
26{
27 cgGLDisableTextureParameter(g_Texture);
28 // cgGLUnbindProgram (vsh_profile);
29 // cgGLUnbindProgram (fsh_profile);
30 cgGLDisableProfile (vsh_profile);
31 cgGLDisableProfile (fsh_profile);
32}
33
34
35GLuint texture::load_texture (SDL_Surface *surface, GLfloat *texcoord)
36{
37 GLuint textur;
38 int w, h; 32 int w, h;
39 SDL_Surface *image; 33 SDL_Surface *image;
40 SDL_Rect area; 34 SDL_Rect area;
41 Uint32 saved_flags; 35 Uint32 saved_flags;
42 Uint8 saved_alpha; 36 Uint8 saved_alpha;
… …
44 /* Use the surface width and height expanded to powers of 2 */ 38 /* Use the surface width and height expanded to powers of 2 */
45 //w = power_of_two (surface->w); 39 //w = power_of_two (surface->w);
46 //h = power_of_two (surface->h); 40 //h = power_of_two (surface->h);
47 w = power_of_two (surface->w); 41 w = power_of_two (surface->w);
48 h = power_of_two (surface->h); 42 h = power_of_two (surface->h);
49 texcoord[0] = 0.0f; /* Min X */ 43 tex2oord[0] = 0.0f; /* Min X */
50 texcoord[1] = 0.0f; /* Min Y */ 44 tex2oord[1] = 0.0f; /* Min Y */
51 texcoord[2] = (GLfloat) surface->w / w; /* Max X */ 45 tex2oord[2] = (GLfloat) surface->w / w; /* Max X */
52 texcoord[3] = (GLfloat) surface->h / h; /* Max Y */ 46 tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */
53 47
54 image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, 48 image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
55#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ 49#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
56 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 50 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
57#else 51#else
58 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF 52 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
59#endif 53#endif
60 ); 54 );
55
61 if (image == NULL) 56 if (image == NULL)
62 {
63 return 0; 57 return 0;
64 }
65 58
66 /* Save the alpha blending attributes */ 59 /* Save the alpha blending attributes */
67 saved_flags = surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); 60 saved_flags = surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
68 saved_alpha = surface->format->alpha; 61 saved_alpha = surface->format->alpha;
69 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) 62 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
70 {
71 SDL_SetAlpha (surface, 0, 0); 63 SDL_SetAlpha (surface, 0, 0);
72 }
73 64
74 /* Copy the surface into the GL texture image */ 65 /* Copy the surface into the GL texture image */
75 area.x = 0; 66 area.x = 0;
76 area.y = 0; 67 area.y = 0;
77 area.w = surface->w; 68 area.w = surface->w;
78 area.h = surface->h; 69 area.h = surface->h;
79 SDL_BlitSurface (surface, &area, image, &area); 70 SDL_BlitSurface (surface, &area, image, &area);
80 71
81 /* Restore the alpha blending attributes */ 72 /* Restore the alpha blending attributes */
82 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) 73 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
83 {
84 SDL_SetAlpha (surface, saved_flags, saved_alpha); 74 SDL_SetAlpha (surface, saved_flags, saved_alpha);
85 }
86 75
87 /* Create an OpenGL texture for the image */ 76 /* Create an OpenGL texture for the image */
88 glGenTextures (1, &textur); 77 glGenTextures (1, &name);
89 glBindTexture (GL_TEXTURE_2D, textur); 78 glBindTexture (GL_TEXTURE_2D, name);
90 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 79 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
91 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 80 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
81 glTexParameteri (GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
92 glTexImage2D (GL_TEXTURE_2D, 82 glTexImage2D (GL_TEXTURE_2D,
93 0, 83 0,
94 GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); 84 GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
95 SDL_FreeSurface (image); /* No longer needed */ 85 SDL_FreeSurface (image); /* No longer needed */
96 86
97 return textur; 87 return name;
98} 88}
99 89
90test_material::test_material ()
91: tex ("textures/osama.jpg"), texvar (tex.name)
92{
93 using namespace shader;
100 94
101CGcontext cgc; 95 p.vsh->start ();
102void init_shaders () { 96
103 cgc = cgCreateContext (); 97 temp_4f lightpos;
98 temp_4f wpos;
99
100 //lightpos = shader::vec4 (0, 10, 0, 1);
101 vout.position = shader::gl.model_view_projection_matrix * vin.vertex;
102 vout.tex_coord[0] = vin.tex_coord[0] + 1;
103 //vout.tex_coord[1] = normalize (lightpos - wpos);
104 //vout.tex_coord[2] = normalize (wpos);
105 //vout.tex_coord[3] = normalize (xyz (gl.model_view_matrix_inverse_transpose) * vin.normal);
106 //vout.tex_coord[4] = normalize (xyz (gl.projection_matrix_inverse_transpose) - wpos);
107
108 p.vsh->end ();
109 p.vsh->compile ();
110
111 fragment_shader fsh;
112
113 p.fsh->start ();
114
115 xyz(fout.frag_color) = texture_2d (texvar, fin.tex_coord[0]);
116
117 p.fsh->end ();
118 p.fsh->compile ();
119 p.link ();
104} 120}
121
122void test_material::enable ()
123{
124 p.enable ();
125 texvar->enable ();
126}
127
128void test_material::disable ()
129{
130 texvar->disable ();
131 p.disable ();
132}
133

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