From 118856641f4871d6f6afd1abb67ad7fe56a6814b Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Sat, 18 Apr 2009 12:54:27 -0600 Subject: demos: move glslnoise.c demo to glsl/noise2.c --- progs/demos/Makefile | 1 - progs/demos/glslnoise.c | 201 ------------------------------------------------ progs/glsl/Makefile | 8 ++ progs/glsl/noise2.c | 201 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 209 insertions(+), 202 deletions(-) delete mode 100644 progs/demos/glslnoise.c create mode 100644 progs/glsl/noise2.c (limited to 'progs') diff --git a/progs/demos/Makefile b/progs/demos/Makefile index 32c6072123..43bf09c0af 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 e972b62673..0000000000 --- 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 (stegu@itn.liu.se) 2004, 2005 - */ - -#ifdef WIN32 -#include -#endif - -#include -#include -#include -#include -#include - -#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; -} - diff --git a/progs/glsl/Makefile b/progs/glsl/Makefile index 5fb95c4b3b..8e61ab690b 100644 --- a/progs/glsl/Makefile +++ b/progs/glsl/Makefile @@ -23,6 +23,7 @@ PROGS = \ multinoise \ multitex \ noise \ + noise2 \ points \ pointcoord \ samplers \ @@ -163,6 +164,13 @@ noise: noise.o shaderutil.o $(APP_CC) -I$(INCDIR) $(CFLAGS) $(LDFLAGS) noise.o shaderutil.o $(LIBS) -o $@ +noise2.o: noise2.c extfuncs.h shaderutil.h + $(APP_CC) -c -I$(INCDIR) $(CFLAGS) noise2.c + +noise2: noise2.o shaderutil.o + $(APP_CC) -I$(INCDIR) $(CFLAGS) $(LDFLAGS) noise2.o shaderutil.o $(LIBS) -o $@ + + points.o: points.c extfuncs.h shaderutil.h $(APP_CC) -c -I$(INCDIR) $(CFLAGS) points.c diff --git a/progs/glsl/noise2.c b/progs/glsl/noise2.c new file mode 100644 index 0000000000..e972b62673 --- /dev/null +++ b/progs/glsl/noise2.c @@ -0,0 +1,201 @@ +/* + * GLSL noise demo. + * + * Michal Krol + * 20 February 2006 + * + * Based on the original demo by: + * Stefan Gustavson (stegu@itn.liu.se) 2004, 2005 + */ + +#ifdef WIN32 +#include +#endif + +#include +#include +#include +#include +#include + +#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; +} + -- cgit v1.2.3