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-rw-r--r--progs/trivial/readpixels.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/progs/trivial/readpixels.c b/progs/trivial/readpixels.c
deleted file mode 100644
index b063f17956..0000000000
--- a/progs/trivial/readpixels.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * glRead/DrawPixels test
- */
-
-
-#include <GL/glew.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <GL/glut.h>
-
-static int Width = 250, Height = 250;
-static GLfloat Zoom = 1.0;
-
-static void Init(void)
-{
- fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
- fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
- fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
- fflush(stderr);
- glClearColor(0.3, 0.1, 0.3, 0.0);
-}
-
-static void Reshape(int width, int height)
-{
- Width = width / 2;
- Height = height;
- /* draw on left half (we'll read that area) */
- glViewport(0, 0, Width, height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
- glMatrixMode(GL_MODELVIEW);
-}
-
-static void Key(unsigned char key, int x, int y)
-{
- switch (key) {
- case 27:
- exit(0);
- default:
- break;
- }
- glutPostRedisplay();
-}
-
-static void Draw(void)
-{
- GLfloat *image = (GLfloat *) malloc(Width * Height * 4 * sizeof(GLfloat));
-
- glClear(GL_COLOR_BUFFER_BIT);
-
- glBegin(GL_TRIANGLES);
- glColor3f(.8,0,0);
- glVertex3f(-0.9, -0.9, -30.0);
- glColor3f(0,.9,0);
- glVertex3f( 0.9, -0.9, -30.0);
- glColor3f(0,0,.7);
- glVertex3f( 0.0, 0.9, -30.0);
- glEnd();
-
- glBegin(GL_QUADS);
- glColor3f(1, 1, 1);
- glVertex2f(-1.0, -1.0);
- glVertex2f(-0.9, -1.0);
- glVertex2f(-0.9, -0.9);
- glVertex2f(-1.0, -0.9);
- glEnd();
-
- glReadPixels(0, 0, Width, Height, GL_RGBA, GL_FLOAT, image);
- printf("Pixel(0,0) = %f, %f, %f, %f\n",
- image[0], image[1], image[2], image[3]);
- /* draw to right half of window */
- glWindowPos2iARB(Width, 0);
- glPixelZoom(Zoom, Zoom);
- glDrawPixels(Width, Height, GL_RGBA, GL_FLOAT, image);
- free(image);
-
- glutSwapBuffers();
-}
-
-int main(int argc, char **argv)
-{
- glutInit(&argc, argv);
- glutInitWindowPosition(0, 0);
- glutInitWindowSize(Width*2, Height);
- glutInitDisplayMode(GLUT_RGB | GLUT_ALPHA | GLUT_DOUBLE);
- if (glutCreateWindow(argv[0]) == GL_FALSE) {
- exit(1);
- }
-
- if (argc > 1)
- Zoom = atof(argv[1]);
-
- glewInit();
-
- Init();
-
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutDisplayFunc(Draw);
- glutMainLoop();
- return 0;
-}