<commit_before>/*
 * GLSL noise demo.
 *
 * <NAME>
 * 20 February 2006
 *
 * Based on the original demo by:
 * <NAME> (<EMAIL>) 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 wglGetProcAddress
#else
#define GETPROCADDRESS glutGetProcAddress
#endif

static GLhandleARB fragShader;
static GLhandleARB vertShader;
static GLhandleARB program;

static GLint uTime;

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)
{
	glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	glUniform1fARB (uTime, u_time);

	glPushMatrix ();
	glutSolidSphere (2.0, 20, 10);
	glPopMatrix ();

	glutSwapBuffers();
}

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"
		"void main () {\n"
		"	gl_FragColor = gl_Color * vec4 ((0.5 + 0.5 * vec3 (noise1 (\n"
		"		vec4 (4.0 * gl_TexCoord[0].xyz, 0.5 * time)))), 1.0);\n"
		"}\n"
	;
	static const char *vertShaderText =
		"void main () {\n"
		"	gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
		"	gl_TexCoord[0] = gl_Vertex;\n"
		"	gl_FrontColor = gl_Color;\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) wglGetProcAddress ("glCreateShaderObjectARB");
	glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC) wglGetProcAddress ("glShaderSourceARB");
	glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC) wglGetProcAddress ("glCompileShaderARB");
	glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC) wglGetProcAddress ("glCreateProgramObjectARB");
	glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC) wglGetProcAddress ("glAttachObjectARB");
	glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC) wglGetProcAddress ("glLinkProgramARB");
	glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC) wglGetProcAddress ("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 ();<commit_msg>fix GETPROCADDRESS usage, remove carriage return chars (bug 6430)<commit_after>/*
 * GLSL noise demo.
 *
 * <NAME>
 * 20 February 2006
 *
 * Based on the original demo by:
 * <NAME> (<EMAIL>) 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 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)
{
	glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	glUniform1fARB (uTime, u_time);

	glPushMatrix ();
	glutSolidSphere (2.0, 20, 10);
	glPopMatrix ();

	glutSwapBuffers();
}

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"
		"void main () {\n"
		"	gl_FragColor = gl_Color * vec4 ((0.5 + 0.5 * vec3 (noise1 (\n"
		"		vec4 (4.0 * gl_TexCoord[0].xyz, 0.5 * time)))), 1.0);\n"
		"}\n"
	;
	static const char *vertShaderText =
		"void main () {\n"
		"	gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
		"	gl_TexCoord[0] = gl_Vertex;\n"
		"	gl_FrontColor = gl_Color;\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 ();
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