diff options
Diffstat (limited to 'progs/tests/fbotest2.c')
-rw-r--r-- | progs/tests/fbotest2.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/progs/tests/fbotest2.c b/progs/tests/fbotest2.c deleted file mode 100644 index c3117b0f767..00000000000 --- a/progs/tests/fbotest2.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Test GL_EXT_framebuffer_object - * - * Brian Paul - * 19 Mar 2006 - */ - - -#define GL_GLEXT_PROTOTYPES -#include <assert.h> -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glut.h> - -static int Width = 400, Height = 400; -static GLuint MyFB, ColorRb, DepthRb; -static GLboolean Animate = GL_TRUE; -static GLfloat Rotation = 0.0; - - -static void -CheckError(int line) -{ - GLenum err = glGetError(); - if (err) { - printf("fbotest2: GL Error 0x%x at line %d\n", (int) err, line); - } -} - - -static void -Display( void ) -{ - GLubyte *buffer = malloc(Width * Height * 4); - GLenum status; - - CheckError(__LINE__); - - /* draw to user framebuffer */ - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); - glDrawBuffer(GL_COLOR_ATTACHMENT1_EXT); - glReadBuffer(GL_COLOR_ATTACHMENT1_EXT); - - status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); - if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { - printf("fbotest2: Error: Framebuffer is incomplete!!!\n"); - } - - CheckError(__LINE__); - - glClearColor(0.5, 0.5, 1.0, 0.0); - glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); - - glEnable(GL_DEPTH_TEST); - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - - glPushMatrix(); - glRotatef(30.0, 1, 0, 0); - glRotatef(Rotation, 0, 1, 0); - glutSolidTeapot(2.0); - glPopMatrix(); - - /* read from user framebuffer */ - glReadPixels(0, 0, Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, buffer); - - /* draw to window */ - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - glWindowPos2iARB(0, 0); - glDrawPixels(Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, buffer); - - free(buffer); - glutSwapBuffers(); - CheckError(__LINE__); -} - - -static void -Reshape( int width, int height ) -{ - float ar = (float) width / (float) height; - - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glFrustum( -ar, ar, -1.0, 1.0, 5.0, 25.0 ); - - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); - glTranslatef( 0.0, 0.0, -15.0 ); - - glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, ColorRb); - glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, width, height); - glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, DepthRb); - glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, - width, height); - - Width = width; - Height = height; -} - - -static void -CleanUp(void) -{ - glDeleteFramebuffersEXT(1, &MyFB); - glDeleteRenderbuffersEXT(1, &ColorRb); - glDeleteRenderbuffersEXT(1, &DepthRb); - assert(!glIsFramebufferEXT(MyFB)); - assert(!glIsRenderbufferEXT(ColorRb)); - assert(!glIsRenderbufferEXT(DepthRb)); - exit(0); -} - - -static void -Idle(void) -{ - Rotation = glutGet(GLUT_ELAPSED_TIME) * 0.1; - glutPostRedisplay(); -} - - -static void -Key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - switch (key) { - case 'a': - Animate = !Animate; - if (Animate) - glutIdleFunc(Idle); - else - glutIdleFunc(NULL); - break; - case 27: - CleanUp(); - break; - } - glutPostRedisplay(); -} - - -static void -Init( void ) -{ - if (!glutExtensionSupported("GL_EXT_framebuffer_object")) { - printf("fbotest2: GL_EXT_framebuffer_object not found!\n"); - exit(0); - } - printf("fbotest2: GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - - glGenFramebuffersEXT(1, &MyFB); - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); - assert(glIsFramebufferEXT(MyFB)); - - /* set color buffer */ - glGenRenderbuffersEXT(1, &ColorRb); - glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, ColorRb); - assert(glIsRenderbufferEXT(ColorRb)); - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, - GL_RENDERBUFFER_EXT, ColorRb); - glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height); - - /* setup depth buffer */ - glGenRenderbuffersEXT(1, &DepthRb); - glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, DepthRb); - assert(glIsRenderbufferEXT(DepthRb)); - glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, - GL_RENDERBUFFER_EXT, DepthRb); - glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, Width, Height); - - CheckError(__LINE__); - - /* restore to default */ - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - CheckError(__LINE__); -} - - -int -main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize(Width, Height); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow(argv[0]); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - if (Animate) - glutIdleFunc(Idle); - Init(); - glutMainLoop(); - return 0; -} |