diff options
author | Brian Paul <[email protected]> | 2009-04-18 12:55:55 -0600 |
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committer | Brian Paul <[email protected]> | 2009-04-18 12:55:55 -0600 |
commit | 6a495d26af54011ff1ec0597b38db2ce162c7d50 (patch) | |
tree | dc7a363dd4035f3faea84a8079bcbebc9f14bb56 /progs/demos | |
parent | 118856641f4871d6f6afd1abb67ad7fe56a6814b (diff) |
demos: move streaming_rect.c demo to tests/
Diffstat (limited to 'progs/demos')
-rw-r--r-- | progs/demos/Makefile | 1 | ||||
-rw-r--r-- | progs/demos/streaming_rect.c | 327 |
2 files changed, 0 insertions, 328 deletions
diff --git a/progs/demos/Makefile b/progs/demos/Makefile index 43bf09c0af3..1cdd9634177 100644 --- a/progs/demos/Makefile +++ b/progs/demos/Makefile @@ -48,7 +48,6 @@ PROGS = \ renormal \ shadowtex \ singlebuffer \ - streaming_rect \ spectex \ spriteblast \ stex3d \ diff --git a/progs/demos/streaming_rect.c b/progs/demos/streaming_rect.c deleted file mode 100644 index f65ac4ce36c..00000000000 --- a/progs/demos/streaming_rect.c +++ /dev/null @@ -1,327 +0,0 @@ -/* - * GL_ARB_pixel_buffer_object test - * - * Command line options: - * -w WIDTH -h HEIGHT sets window size - * - */ - -#include <math.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <GL/glew.h> -#include <GL/glut.h> - -#include "readtex.h" - - -#define ANIMATE 10 -#define PBO 11 -#define QUIT 100 - -static GLuint DrawPBO; - -static GLboolean Animate = GL_TRUE; -static GLboolean use_pbo = 1; -static GLboolean whole_rect = 1; - -static GLfloat Drift = 0.0; -static GLfloat drift_increment = 1/255.0; -static GLfloat Xrot = 20.0, Yrot = 30.0; - -static GLuint Width = 1024; -static GLuint Height = 512; - - -static void Idle( void ) -{ - if (Animate) { - - Drift += drift_increment; - if (Drift >= 1.0) - Drift = 0.0; - - glutPostRedisplay(); - } -} - -/*static int max( int a, int b ) { return a > b ? a : b; }*/ - -#ifndef min -static int min( int a, int b ) { return a < b ? a : b; } -#endif - -static void DrawObject() -{ - GLint size = Width * Height * 4; - - if (use_pbo) { - /* XXX: This is extremely important - semantically makes the buffer - * contents undefined, but in practice means that the driver can - * release the old copy of the texture and allocate a new one - * without waiting for outstanding rendering to complete. - */ - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, DrawPBO); - glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_EXT, size, NULL, GL_STREAM_DRAW_ARB); - - { - char *image = glMapBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, GL_WRITE_ONLY_ARB); - - printf("char %d\n", (unsigned char)(Drift * 255)); - - memset(image, (unsigned char)(Drift * 255), size); - - glUnmapBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT); - } - - - /* BGRA is required for most hardware paths: - */ - glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, Width, Height, 0, - GL_BGRA, GL_UNSIGNED_BYTE, NULL); - } - else { - static char *image = NULL; - - if (image == NULL) - image = malloc(size); - - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, 0); - - memset(image, (unsigned char)(Drift * 255), size); - - /* BGRA should be the fast path for regular uploads as well. - */ - glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, Width, Height, 0, - GL_BGRA, GL_UNSIGNED_BYTE, image); - } - - { - int x,y,w,h; - - if (whole_rect) { - x = y = 0; - w = Width; - h = Height; - } - else { - x = y = 0; - w = min(10, Width); - h = min(10, Height); - } - - glBegin(GL_QUADS); - - glTexCoord2f( x, y); - glVertex2f( x, y ); - - glTexCoord2f( x, y + h); - glVertex2f( x, y + h); - - glTexCoord2f( x + w + .5, y + h); - glVertex2f( x + w, y + h ); - - glTexCoord2f( x + w, y + .5); - glVertex2f( x + w, y ); - - glEnd(); - } -} - - - -static void Display( void ) -{ - static GLint T0 = 0; - static GLint Frames = 0; - GLint t; - - glClear( GL_COLOR_BUFFER_BIT ); - - glPushMatrix(); - DrawObject(); - glPopMatrix(); - - glutSwapBuffers(); - - Frames++; - - t = glutGet(GLUT_ELAPSED_TIME); - if (t - T0 >= 1000) { - GLfloat seconds = (t - T0) / 1000.0; - - GLfloat fps = Frames / seconds; - printf("%d frames in %6.3f seconds = %6.3f FPS\n", Frames, seconds, fps); - fflush(stdout); - - drift_increment = 2.2 * seconds / Frames; - T0 = t; - Frames = 0; - } -} - - -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, 10.0, 100.0 ); */ - gluOrtho2D( 0, width, height, 0 ); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); - glTranslatef(0.375, 0.375, 0); -} - - -static void ModeMenu(int entry) -{ - if (entry==ANIMATE) { - Animate = !Animate; - } - else if (entry==PBO) { - use_pbo = !use_pbo; - } - else if (entry==QUIT) { - exit(0); - } - - glutPostRedisplay(); -} - - -static void Key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - switch (key) { - case 27: - exit(0); - break; - } - glutPostRedisplay(); -} - - -static void SpecialKey( int key, int x, int y ) -{ - float step = 3.0; - (void) x; - (void) y; - - switch (key) { - case GLUT_KEY_UP: - Xrot += step; - break; - case GLUT_KEY_DOWN: - Xrot -= step; - break; - case GLUT_KEY_LEFT: - Yrot += step; - break; - case GLUT_KEY_RIGHT: - Yrot -= step; - break; - } - glutPostRedisplay(); -} - - -static void Init( int argc, char *argv[] ) -{ - const char *exten = (const char *) glGetString(GL_EXTENSIONS); - GLuint texObj; - GLint size; - - - if (!strstr(exten, "GL_ARB_pixel_buffer_object")) { - printf("Sorry, GL_ARB_pixel_buffer_object not supported by this renderer.\n"); - exit(1); - } - - glGetIntegerv(GL_MAX_TEXTURE_SIZE, &size); - printf("%d x %d max texture size\n", size, size); - - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - - /* allocate two texture objects */ - glGenTextures(1, &texObj); - - /* setup the texture objects */ - glActiveTextureARB(GL_TEXTURE0_ARB); - glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texObj); - - glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - - glGenBuffersARB(1, &DrawPBO); - - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, DrawPBO); - glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_EXT, - Width * Height * 4, NULL, GL_STREAM_DRAW); - - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - - glEnable(GL_TEXTURE_RECTANGLE_ARB); - - glShadeModel(GL_SMOOTH); - glClearColor(0.3, 0.3, 0.4, 1.0); - - if (argc > 1 && strcmp(argv[1], "-info")==0) { - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); - printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); - } -} - - -int main( int argc, char *argv[] ) -{ - GLint i; - - glutInit( &argc, argv ); - - for (i = 1; i < argc; i++) { - if (strcmp(argv[i], "-w") == 0) { - Width = atoi(argv[i+1]); - if (Width <= 0) { - printf("Error, bad width\n"); - exit(1); - } - i++; - } - else if (strcmp(argv[i], "-h") == 0) { - Height = atoi(argv[i+1]); - if (Height <= 0) { - printf("Error, bad height\n"); - exit(1); - } - i++; - } - } - - glutInitWindowSize( Width, Height ); - glutInitWindowPosition( 0, 0 ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow(argv[0] ); - glewInit(); - - Init( argc, argv ); - - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutSpecialFunc( SpecialKey ); - glutDisplayFunc( Display ); - glutIdleFunc( Idle ); - - glutCreateMenu(ModeMenu); - glutAddMenuEntry("Toggle Animation", ANIMATE); - glutAddMenuEntry("Toggle PBO", PBO); - glutAddMenuEntry("Quit", QUIT); - glutAttachMenu(GLUT_RIGHT_BUTTON); - - glutMainLoop(); - return 0; -} |