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-rw-r--r--progs/glsl/mandelbrot.c215
1 files changed, 0 insertions, 215 deletions
diff --git a/progs/glsl/mandelbrot.c b/progs/glsl/mandelbrot.c
deleted file mode 100644
index b05ef37fae1..00000000000
--- a/progs/glsl/mandelbrot.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/**
- * "Mandelbrot" shader demo. Uses the example shaders from
- * chapter 15 (or 18) of the OpenGL Shading Language "orange" book.
- * 15 Jan 2007
- */
-
-#include <assert.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-#include "shaderutil.h"
-
-
-static char *FragProgFile = "CH18-mandel.frag";
-static char *VertProgFile = "CH18-mandel.vert";
-
-/* program/shader objects */
-static GLuint fragShader;
-static GLuint vertShader;
-static GLuint program;
-
-
-static struct uniform_info Uniforms[] = {
- /* vert */
- { "LightPosition", 1, GL_FLOAT_VEC3, { 0.1, 0.1, 9.0, 0}, -1 },
- { "SpecularContribution", 1, GL_FLOAT, { 0.5, 0, 0, 0 }, -1 },
- { "DiffuseContribution", 1, GL_FLOAT, { 0.5, 0, 0, 0 }, -1 },
- { "Shininess", 1, GL_FLOAT, { 20.0, 0, 0, 0 }, -1 },
- /* frag */
- { "MaxIterations", 1, GL_FLOAT, { 12, 0, 0, 0 }, -1 },
- { "Zoom", 1, GL_FLOAT, { 0.125, 0, 0, 0 }, -1 },
- { "Xcenter", 1, GL_FLOAT, { -1.5, 0, 0, 0 }, -1 },
- { "Ycenter", 1, GL_FLOAT, { .005, 0, 0, 0 }, -1 },
- { "InnerColor", 1, GL_FLOAT_VEC3, { 1, 0, 0, 0 }, -1 },
- { "OuterColor1", 1, GL_FLOAT_VEC3, { 0, 1, 0, 0 }, -1 },
- { "OuterColor2", 1, GL_FLOAT_VEC3, { 0, 0, 1, 0 }, -1 },
- END_OF_UNIFORMS
-};
-
-static GLint win = 0;
-
-static GLfloat xRot = 0.0f, yRot = 0.0f, zRot = 0.0f;
-
-static GLint uZoom, uXcenter, uYcenter;
-static GLfloat zoom = 1.0, xCenter = -1.5, yCenter = 0.0;
-
-
-static void
-Redisplay(void)
-{
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- /* set interactive uniform parameters */
- glUniform1fv(uZoom, 1, &zoom);
- glUniform1fv(uXcenter, 1, &xCenter);
- glUniform1fv(uYcenter, 1, &yCenter);
-
- glPushMatrix();
- glRotatef(xRot, 1.0f, 0.0f, 0.0f);
- glRotatef(yRot, 0.0f, 1.0f, 0.0f);
- glRotatef(zRot, 0.0f, 0.0f, 1.0f);
-
- glBegin(GL_POLYGON);
- glTexCoord2f(0, 0); glVertex2f(-1, -1);
- glTexCoord2f(1, 0); glVertex2f( 1, -1);
- glTexCoord2f(1, 1); glVertex2f( 1, 1);
- glTexCoord2f(0, 1); glVertex2f(-1, 1);
- glEnd();
-
- glPopMatrix();
-
- glutSwapBuffers();
-}
-
-
-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, -6.0f);
-}
-
-
-static void
-CleanUp(void)
-{
- glDeleteShader(fragShader);
- glDeleteShader(vertShader);
- glDeleteProgram(program);
- glutDestroyWindow(win);
-}
-
-
-static void
-Key(unsigned char key, int x, int y)
-{
- (void) x;
- (void) y;
-
- switch(key) {
- case 'z':
- zoom *= 0.9;
- break;
- case 'Z':
- zoom /= 0.9;
- break;
- case 27:
- CleanUp();
- exit(0);
- break;
- }
- glutPostRedisplay();
-}
-
-
-static void
-SpecialKey(int key, int x, int y)
-{
- const GLfloat step = 0.1 * zoom;
-
- (void) x;
- (void) y;
-
- switch(key) {
- case GLUT_KEY_UP:
- yCenter += step;
- break;
- case GLUT_KEY_DOWN:
- yCenter -= step;
- break;
- case GLUT_KEY_LEFT:
- xCenter -= step;
- break;
- case GLUT_KEY_RIGHT:
- xCenter += step;
- break;
- }
- glutPostRedisplay();
-}
-
-
-static void
-Init(void)
-{
- if (!ShadersSupported())
- exit(1);
-
- vertShader = CompileShaderFile(GL_VERTEX_SHADER, VertProgFile);
- fragShader = CompileShaderFile(GL_FRAGMENT_SHADER, FragProgFile);
- program = LinkShaders(vertShader, fragShader);
-
- glUseProgram(program);
-
- SetUniformValues(program, Uniforms);
- PrintUniforms(Uniforms);
-
- uZoom = glGetUniformLocation(program, "Zoom");
- uXcenter = glGetUniformLocation(program, "Xcenter");
- uYcenter = glGetUniformLocation(program, "Ycenter");
-
- assert(glGetError() == 0);
-
- glClearColor(0.4f, 0.4f, 0.8f, 0.0f);
-
- printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER));
-
- assert(glIsProgram(program));
- assert(glIsShader(fragShader));
- assert(glIsShader(vertShader));
-
- glColor3f(1, 0, 0);
-}
-
-
-static void
-ParseOptions(int argc, char *argv[])
-{
- int i;
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-fs") == 0) {
- FragProgFile = argv[i+1];
- }
- else if (strcmp(argv[i], "-vs") == 0) {
- VertProgFile = argv[i+1];
- }
- }
-}
-
-
-int
-main(int argc, char *argv[])
-{
- glutInit(&argc, argv);
- glutInitWindowSize(400, 400);
- glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
- win = glutCreateWindow(argv[0]);
- glewInit();
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutSpecialFunc(SpecialKey);
- glutDisplayFunc(Redisplay);
- ParseOptions(argc, argv);
- Init();
- glutMainLoop();
- return 0;
-}
-