1 files changed, 0 insertions, 255 deletions
diff --git a/progs/glsl/trirast.c b/progs/glsl/trirast.c
deleted file mode 100644
index 857342636d..0000000000
--- a/progs/glsl/trirast.c
+++ /dev/null
@@ -1,255 +0,0 @@
-/**
- * Demonstration of doing triangle rasterization with a fragment program.
- * Basic idea:
- *   1. Draw screen-aligned quad / bounding box around the triangle verts.
- *   2. For each pixel in the quad, determine if pixel is inside/outside
- *      the triangle edges.
- *
- * Brian Paul
- * 1 Aug 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 GLint WinWidth = 300, WinHeight = 300;
-static char *FragProgFile = NULL;
-static char *VertProgFile = NULL;
-static GLuint fragShader;
-static GLuint vertShader;
-static GLuint program;
-static GLint win = 0;
-static GLboolean anim = GL_TRUE;
-static GLfloat Zrot = 0.0f;
-static GLint uv0, uv1, uv2;
-
-
-static const GLfloat TriVerts[3][2] = {
-   { 50,  50 },
-   { 250, 50 },
-   { 150, 250 }
-};
-
-
-static void
-RotateVerts(GLfloat a,
-            GLuint n, const GLfloat vertsIn[][2], GLfloat vertsOut[][2])
-{
-   GLuint i;
-   GLfloat cx = WinWidth / 2, cy = WinHeight / 2;
-   for (i = 0; i < n; i++) {
-      float x = vertsIn[i][0] - cx;
-      float y = vertsIn[i][1] - cy;
-      
-      vertsOut[i][0] =  x * cos(a) + y * sin(a)  + cx;
-      vertsOut[i][1] = -x * sin(a) + y * cos(a)  + cy;
-   }
-}
-
-static void
-ComputeBounds(GLuint n, GLfloat vertsIn[][2],
-              GLfloat *xmin, GLfloat *ymin,
-              GLfloat *xmax, GLfloat *ymax)
-{
-   GLuint i;
-   *xmin = *xmax = vertsIn[0][0];
-   *ymin = *ymax = vertsIn[0][1];
-   for (i = 1; i < n; i++) {
-      if (vertsIn[i][0] < *xmin)
-         *xmin = vertsIn[i][0];
-      else if (vertsIn[i][0] > *xmax)
-         *xmax = vertsIn[i][0];
-      if (vertsIn[i][1] < *ymin)
-         *ymin = vertsIn[i][1];
-      else if (vertsIn[i][1] > *ymax)
-         *ymax = vertsIn[i][1];
-   }
-}
-
-
-static void
-Redisplay(void)
-{
-   GLfloat v[3][2], xmin, ymin, xmax, ymax;
-
-   RotateVerts(Zrot, 3, TriVerts, v);
-   ComputeBounds(3, v, &xmin, &ymin, &xmax, &ymax);
-
-   glUniform2fv(uv0, 1, v[0]);
-   glUniform2fv(uv1, 1, v[1]);
-   glUniform2fv(uv2, 1, v[2]);
-
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-   glPushMatrix();
-   glBegin(GL_POLYGON);
-   glVertex2f(xmin, ymin);
-   glVertex2f(xmax, ymin);
-   glVertex2f(xmax, ymax);
-   glVertex2f(xmin, ymax);
-   glEnd();
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-static void
-Idle(void)
-{
-   if (anim) {
-      Zrot = glutGet(GLUT_ELAPSED_TIME) * 0.0005;
-      glutPostRedisplay();
-   }
-   else
-      abort();
-}
-
-
-static void
-Reshape(int width, int height)
-{
-   glViewport(0, 0, width, height);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(0, width, 0, height, -1, 1);
-
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-}
-
-
-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 ' ':
-   case 'a':
-      anim = !anim;
-      if (anim)
-         glutIdleFunc(Idle);
-      else
-         glutIdleFunc(NULL);
-      break;
-   case 'z':
-      Zrot = 0;
-      break;
-   case 's':
-      Zrot += 0.05;
-      break;
-   case 27:
-      CleanUp();
-      exit(0);
-      break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void
-Init(void)
-{
-   static const char *fragShaderText =
-      "uniform vec2 v0, v1, v2; \n"
-      "float crs(const vec2 u, const vec2 v) \n"
-      "{ \n"
-      "   return u.x * v.y - u.y * v.x; \n"
-      "} \n"
-      "\n"
-      "void main() {\n"
-      "   vec2 p = gl_FragCoord.xy; \n"
-      "   if (crs(v1 - v0, p - v0) >= 0.0 && \n"
-      "       crs(v2 - v1, p - v1) >= 0.0 && \n"
-      "       crs(v0 - v2, p - v2) >= 0.0) \n"
-      "      gl_FragColor = vec4(1.0); \n"
-      "   else \n"
-      "      gl_FragColor = vec4(0.5); \n"
-      "}\n";
-   static const char *vertShaderText =
-      "void main() {\n"
-      "   gl_Position = ftransform(); \n"
-      "}\n";
-
-   if (!ShadersSupported())
-      exit(1);
-
-   vertShader = CompileShaderText(GL_VERTEX_SHADER, vertShaderText);
-   fragShader = CompileShaderText(GL_FRAGMENT_SHADER, fragShaderText);
-   program = LinkShaders(vertShader, fragShader);
-
-   glUseProgram(program);
-
-   uv0 = glGetUniformLocation(program, "v0");
-   uv1 = glGetUniformLocation(program, "v1");
-   uv2 = glGetUniformLocation(program, "v2");
-   printf("Uniforms: %d %d %d\n", uv0, uv1, uv2);
-
-   /*assert(glGetError() == 0);*/
-
-   glClearColor(0.3f, 0.3f, 0.3f, 0.0f);
-   glEnable(GL_DEPTH_TEST);
-
-   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(WinWidth, WinHeight);
-   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
-   win = glutCreateWindow(argv[0]);
-   glewInit();
-   glutReshapeFunc(Reshape);
-   glutKeyboardFunc(Key);
-   glutDisplayFunc(Redisplay);
-   if (anim)
-      glutIdleFunc(Idle);
-   ParseOptions(argc, argv);
-   Init();
-   glutMainLoop();
-   return 0;
-}