diff options
Diffstat (limited to 'progs/demos')
| -rw-r--r-- | progs/demos/Makefile | 1 | ||||
| -rw-r--r-- | progs/demos/glslnoise.c | 201 |
2 files changed, 0 insertions, 202 deletions
diff --git a/progs/demos/Makefile b/progs/demos/Makefile index 32c60721232..43bf09c0af3 100644 --- a/progs/demos/Makefile +++ b/progs/demos/Makefile @@ -32,7 +32,6 @@ PROGS = \ geartrain \ glinfo \ gloss \ - glslnoise \ gltestperf \ glutfx \ isosurf \ diff --git a/progs/demos/glslnoise.c b/progs/demos/glslnoise.c deleted file mode 100644 index e972b62673f..00000000000 --- a/progs/demos/glslnoise.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * GLSL noise demo. - * - * Michal Krol - * 20 February 2006 - * - * Based on the original demo by: - * Stefan Gustavson ([email protected]) 2004, 2005 - */ - -#ifdef WIN32 -#include <windows.h> -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <GL/gl.h> -#include <GL/glut.h> -#include <GL/glext.h> - -#ifdef WIN32 -#define GETPROCADDRESS(F) wglGetProcAddress(F) -#else -#define GETPROCADDRESS(F) glutGetProcAddress(F) -#endif - -static GLhandleARB fragShader; -static GLhandleARB vertShader; -static GLhandleARB program; - -static GLint uTime; - -static GLint t0 = 0; -static GLint frames = 0; - -static GLfloat u_time = 0.0f; - -static PFNGLCREATESHADEROBJECTARBPROC glCreateShaderObjectARB = NULL; -static PFNGLSHADERSOURCEARBPROC glShaderSourceARB = NULL; -static PFNGLCOMPILESHADERARBPROC glCompileShaderARB = NULL; -static PFNGLCREATEPROGRAMOBJECTARBPROC glCreateProgramObjectARB = NULL; -static PFNGLATTACHOBJECTARBPROC glAttachObjectARB = NULL; -static PFNGLLINKPROGRAMARBPROC glLinkProgramARB = NULL; -static PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObjectARB = NULL; -static PFNGLGETUNIFORMLOCATIONARBPROC glGetUniformLocationARB = NULL; -static PFNGLUNIFORM1FARBPROC glUniform1fARB = NULL; - -static void Redisplay (void) -{ - GLint t; - - glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - glUniform1fARB (uTime, 0.5f * u_time); - - glPushMatrix (); - glutSolidSphere (2.0, 20, 10); - glPopMatrix (); - - glutSwapBuffers(); - frames++; - - t = glutGet (GLUT_ELAPSED_TIME); - if (t - t0 >= 5000) { - GLfloat seconds = (GLfloat) (t - t0) / 1000.0f; - GLfloat fps = frames / seconds; - printf ("%d frames in %6.3f seconds = %6.3f FPS\n", frames, seconds, fps); - fflush(stdout); - t0 = t; - frames = 0; - } -} - -static void Idle (void) -{ - u_time += 0.1f; - glutPostRedisplay (); -} - -static void Reshape (int width, int height) -{ - glViewport (0, 0, width, height); - glMatrixMode (GL_PROJECTION); - glLoadIdentity (); - glFrustum (-1.0, 1.0, -1.0, 1.0, 5.0, 25.0); - glMatrixMode (GL_MODELVIEW); - glLoadIdentity (); - glTranslatef (0.0f, 0.0f, -15.0f); -} - -static void Key (unsigned char key, int x, int y) -{ - (void) x; - (void) y; - - switch (key) - { - case 27: - exit(0); - break; - } - glutPostRedisplay (); -} - -static void Init (void) -{ - static const char *fragShaderText = - "uniform float time;\n" - "varying vec3 position;\n" - "void main () {\n" - " gl_FragColor = vec4 (vec3 (0.5 + 0.5 * noise1 (vec4 (position, time))), 1.0);\n" - "}\n" - ; - static const char *vertShaderText = - "varying vec3 position;\n" - "void main () {\n" - " gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n" - " position = 4.0 * gl_Vertex.xyz;\n" - "}\n" - ; - - if (!glutExtensionSupported ("GL_ARB_fragment_shader")) - { - printf ("Sorry, this demo requires GL_ARB_fragment_shader\n"); - exit(1); - } - if (!glutExtensionSupported ("GL_ARB_shader_objects")) - { - printf ("Sorry, this demo requires GL_ARB_shader_objects\n"); - exit(1); - } - if (!glutExtensionSupported ("GL_ARB_shading_language_100")) - { - printf ("Sorry, this demo requires GL_ARB_shading_language_100\n"); - exit(1); - } - if (!glutExtensionSupported ("GL_ARB_vertex_shader")) - { - printf ("Sorry, this demo requires GL_ARB_vertex_shader\n"); - exit(1); - } - - glCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC) - GETPROCADDRESS("glCreateShaderObjectARB"); - glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC) - GETPROCADDRESS("glShaderSourceARB"); - glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC) - GETPROCADDRESS("glCompileShaderARB"); - glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC) - GETPROCADDRESS("glCreateProgramObjectARB"); - glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC) - GETPROCADDRESS("glAttachObjectARB"); - glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC) - GETPROCADDRESS ("glLinkProgramARB"); - glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC) - GETPROCADDRESS("glUseProgramObjectARB"); - - glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC) - GETPROCADDRESS("glGetUniformLocationARB"); - glUniform1fARB = (PFNGLUNIFORM1FARBPROC) - GETPROCADDRESS("glUniform1fARB"); - - fragShader = glCreateShaderObjectARB (GL_FRAGMENT_SHADER_ARB); - glShaderSourceARB (fragShader, 1, &fragShaderText, NULL); - glCompileShaderARB (fragShader); - - vertShader = glCreateShaderObjectARB (GL_VERTEX_SHADER_ARB); - glShaderSourceARB (vertShader, 1, &vertShaderText, NULL); - glCompileShaderARB (vertShader); - - program = glCreateProgramObjectARB (); - glAttachObjectARB (program, fragShader); - glAttachObjectARB (program, vertShader); - glLinkProgramARB (program); - glUseProgramObjectARB (program); - - uTime = glGetUniformLocationARB (program, "time"); - - glClearColor (0.0f, 0.1f, 0.3f, 1.0f); - glEnable (GL_CULL_FACE); - glEnable (GL_DEPTH_TEST); - - printf ("GL_RENDERER = %s\n", (const char *) glGetString (GL_RENDERER)); -} - -int main (int argc, char *argv[]) -{ - glutInit (&argc, argv); - glutInitWindowPosition ( 0, 0); - glutInitWindowSize (200, 200); - glutInitDisplayMode (GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); - glutCreateWindow (argv[0]); - glutReshapeFunc (Reshape); - glutKeyboardFunc (Key); - glutDisplayFunc (Redisplay); - glutIdleFunc (Idle); - Init (); - glutMainLoop (); - return 0; -} - |