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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 1.8 by root, Thu Oct 21 15:46:38 2004 UTC

1#include "opengl.h" 1#include "opengl.h"
2#include "material.h" 2#include "material.h"
3
4#include <cstdlib>
5#include <cstring>
6
7namespace shader {
8
9 static CGcontext cg_context = cgCreateContext ();
10
11 int var_i::next_name = 0;
12
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}
3 58
4material::~material () 59material::~material ()
5{ 60{
6} 61}
7 62
63void
8void simple_material::begin () 64simple_material::begin ()
9{ 65{
10 glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *)&diffuse); 66 glMaterialfv (GL_FRONT, GL_DIFFUSE, (GLfloat *) & diffuse);
11 glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *)&specular); 67 glMaterialfv (GL_FRONT, GL_SPECULAR, (GLfloat *) & specular);
12 glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *)&emission); 68 glMaterialfv (GL_FRONT, GL_EMISSION, (GLfloat *) & emission);
13 glMaterialf (GL_FRONT, GL_SHININESS, shininess); 69 glMaterialf (GL_FRONT, GL_SHININESS, shininess);
14} 70}
15 71
72void
16void simple_material::end () 73simple_material::end ()
17{ 74{
18} 75}
76
77void
19void osama_material::begin () 78osama_material::begin ()
20{ 79{
21 cgGLEnableProfile (vsh_profile); 80 cgGLEnableProfile (vsh_profile);
22 cgGLEnableProfile (fsh_profile); 81 cgGLEnableProfile (fsh_profile);
23 cgGLEnableTextureParameter(g_Texture); 82 cgGLEnableTextureParameter (g_Texture);
24} 83}
84
85void
25void osama_material::end () 86osama_material::end ()
26{ 87{
27 cgGLDisableTextureParameter(g_Texture); 88 cgGLDisableTextureParameter (g_Texture);
28 // cgGLUnbindProgram (vsh_profile); 89 // cgGLUnbindProgram (vsh_profile);
29 // cgGLUnbindProgram (fsh_profile); 90 // cgGLUnbindProgram (fsh_profile);
30 cgGLDisableProfile (vsh_profile); 91 cgGLDisableProfile (vsh_profile);
31 cgGLDisableProfile (fsh_profile); 92 cgGLDisableProfile (fsh_profile);
32} 93}
33 94
34 95GLuint
35GLuint texture::load_texture (SDL_Surface *surface, GLfloat *texcoord) 96texture::load_texture (SDL_Surface * surface, GLfloat * tex2oord)
36{ 97{
37 GLuint textur; 98 GLuint textur;
38 int w, h; 99 int w, h;
39 SDL_Surface *image; 100 SDL_Surface *image;
40 SDL_Rect area; 101 SDL_Rect area;
… …
44 /* Use the surface width and height expanded to powers of 2 */ 105 /* Use the surface width and height expanded to powers of 2 */
45 //w = power_of_two (surface->w); 106 //w = power_of_two (surface->w);
46 //h = power_of_two (surface->h); 107 //h = power_of_two (surface->h);
47 w = power_of_two (surface->w); 108 w = power_of_two (surface->w);
48 h = power_of_two (surface->h); 109 h = power_of_two (surface->h);
49 texcoord[0] = 0.0f; /* Min X */ 110 tex2oord[0] = 0.0f; /* Min X */
50 texcoord[1] = 0.0f; /* Min Y */ 111 tex2oord[1] = 0.0f; /* Min Y */
51 texcoord[2] = (GLfloat) surface->w / w; /* Max X */ 112 tex2oord[2] = (GLfloat) surface->w / w; /* Max X */
52 texcoord[3] = (GLfloat) surface->h / h; /* Max Y */ 113 tex2oord[3] = (GLfloat) surface->h / h; /* Max Y */
53 114
54 image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32, 115 image = SDL_CreateRGBSurface (SDL_SWSURFACE, w, h, 32,
55#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ 116#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
56 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 117 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
57#else 118#else
58 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF 119 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
59#endif 120#endif
60 ); 121 );
122
61 if (image == NULL) 123 if (image == NULL)
62 {
63 return 0; 124 return 0;
64 }
65 125
66 /* Save the alpha blending attributes */ 126 /* Save the alpha blending attributes */
67 saved_flags = surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); 127 saved_flags = surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
68 saved_alpha = surface->format->alpha; 128 saved_alpha = surface->format->alpha;
69 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) 129 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
70 {
71 SDL_SetAlpha (surface, 0, 0); 130 SDL_SetAlpha (surface, 0, 0);
72 }
73 131
74 /* Copy the surface into the GL texture image */ 132 /* Copy the surface into the GL texture image */
75 area.x = 0; 133 area.x = 0;
76 area.y = 0; 134 area.y = 0;
77 area.w = surface->w; 135 area.w = surface->w;
78 area.h = surface->h; 136 area.h = surface->h;
79 SDL_BlitSurface (surface, &area, image, &area); 137 SDL_BlitSurface (surface, &area, image, &area);
80 138
81 /* Restore the alpha blending attributes */ 139 /* Restore the alpha blending attributes */
82 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA) 140 if ((saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA)
83 {
84 SDL_SetAlpha (surface, saved_flags, saved_alpha); 141 SDL_SetAlpha (surface, saved_flags, saved_alpha);
85 }
86 142
87 /* Create an OpenGL texture for the image */ 143 /* Create an OpenGL texture for the image */
88 glGenTextures (1, &textur); 144 glGenTextures (1, &textur);
89 glBindTexture (GL_TEXTURE_2D, textur); 145 glBindTexture (GL_TEXTURE_2D, textur);
90 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 146 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
91 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 147 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
92 glTexImage2D (GL_TEXTURE_2D, 149 glTexImage2D (GL_TEXTURE_2D,
93 0, 150 0,
94 GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels); 151 GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
95 SDL_FreeSurface (image); /* No longer needed */ 152 SDL_FreeSurface (image); /* No longer needed */
96 153
97 return textur; 154 return textur;
98} 155}
99 156
157CGcontext cgc;
100 158
101CGcontext cgc; 159void
102void init_shaders () { 160init_shaders ()
161{
103 cgc = cgCreateContext (); 162 cgc = cgCreateContext ();
104} 163}
164

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