diff options
author | Eric Anholt <[email protected]> | 2010-05-21 09:32:38 -0700 |
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committer | Eric Anholt <[email protected]> | 2010-05-21 12:20:39 -0700 |
commit | 68fc4b415e322f6744299e39864fbc377c6eff74 (patch) | |
tree | 4bafffd8b0105174f3c5c0ae327a005be9145990 /progs/tests/pbo.c | |
parent | e4f4489e3fc0b36d72821b55794fb843b2b7fa5f (diff) |
Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.
The remaining programs are ones I've had difficulty finding a build
environment for to make the build system or are unit tests that should
probably live next to their code instead. Hopefully people can bring
over the build for remaining pieces they care about.
Diffstat (limited to 'progs/tests/pbo.c')
-rw-r--r-- | progs/tests/pbo.c | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/progs/tests/pbo.c b/progs/tests/pbo.c deleted file mode 100644 index 9974486db39..00000000000 --- a/progs/tests/pbo.c +++ /dev/null @@ -1,297 +0,0 @@ -/* - * GL_EXT_pixel_buffer_object test - * - * Brian Paul - * 11 March 2004 - */ - - -#include <assert.h> -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glew.h> -#include <GL/glut.h> - -#include "../util/readtex.c" /* a hack, I know */ - -#define IMAGE_FILE "../images/girl.rgb" - -static int ImgWidth, ImgHeight; -static GLenum ImgFormat; -static GLubyte *Image = NULL; - -static int APosX, APosY; /* simple drawpixels */ -static int BPosX, BPosY; /* read/draw pixels */ -static int CPosX, CPosY; /* copypixels */ - -static GLboolean DrawFront = GL_FALSE; -static GLboolean ScaleAndBias = GL_FALSE; -static GLboolean Benchmark = GL_FALSE; - -static GLuint DrawPBO, TempPBO; - - -static GLenum ReadFormat = GL_BGRA; -static GLenum ReadType = GL_UNSIGNED_INT_8_8_8_8_REV; - - - -static void -CheckError(int line) -{ - GLenum err = glGetError(); - if (err) { - printf("GL Error 0x%x at line %d\n", (int) err, line); - } -} - - -static void -Reset( void ) -{ - APosX = 5; APosY = 20; - BPosX = APosX + ImgWidth + 5; BPosY = 20; - CPosX = BPosX + ImgWidth + 5; CPosY = 20; -} - - -static void -PrintString(const char *s) -{ - while (*s) { - glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s); - s++; - } -} - - -static void -SetupPixelTransfer(GLboolean invert) -{ - if (invert) { - glPixelTransferf(GL_RED_SCALE, -1.0); - glPixelTransferf(GL_RED_BIAS, 1.0); - glPixelTransferf(GL_GREEN_SCALE, -1.0); - glPixelTransferf(GL_GREEN_BIAS, 1.0); - glPixelTransferf(GL_BLUE_SCALE, -1.0); - glPixelTransferf(GL_BLUE_BIAS, 1.0); - } - else { - glPixelTransferf(GL_RED_SCALE, 1.0); - glPixelTransferf(GL_RED_BIAS, 0.0); - glPixelTransferf(GL_GREEN_SCALE, 1.0); - glPixelTransferf(GL_GREEN_BIAS, 0.0); - glPixelTransferf(GL_BLUE_SCALE, 1.0); - glPixelTransferf(GL_BLUE_BIAS, 0.0); - } -} - - -static void -Display( void ) -{ - glClearColor(.3, .3, .3, 1); - glClear( GL_COLOR_BUFFER_BIT ); - - CheckError(__LINE__); - - /** Unbind UNPACK pixel buffer before calling glBitmap */ - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, 0); - - glRasterPos2i(5, ImgHeight+25); - PrintString("f = toggle front/back s = toggle scale/bias b = benchmark"); - - glRasterPos2i(5, ImgHeight+40); - PrintString("GL_EXT_pixel_buffer_object test"); - - /* draw original image */ - glRasterPos2i(APosX, 5); - PrintString("Original"); - glRasterPos2i(APosX, APosY); - glEnable(GL_DITHER); - SetupPixelTransfer(GL_FALSE); - /*** Draw from the DrawPBO */ - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, DrawPBO); - glDrawPixels(ImgWidth, ImgHeight, ImgFormat, GL_UNSIGNED_BYTE, 0); - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, 0); - - CheckError(__LINE__); - - /* do readpixels, drawpixels */ - glRasterPos2i(BPosX, 5); - PrintString("Read/DrawPixels"); - SetupPixelTransfer(ScaleAndBias); - /*** read into the Temp PBO */ - glBindBufferARB(GL_PIXEL_PACK_BUFFER_EXT, TempPBO); - CheckError(__LINE__); - if (Benchmark) { - GLint reads = 0; - GLint endTime; - GLint startTime = glutGet(GLUT_ELAPSED_TIME); - GLdouble seconds, pixelsPerSecond; - printf("Benchmarking...\n"); - do { - glReadPixels(APosX, APosY, ImgWidth, ImgHeight, - ReadFormat, ReadType, 0); - reads++; - endTime = glutGet(GLUT_ELAPSED_TIME); - } while (endTime - startTime < 4000); /* 4 seconds */ - seconds = (double) (endTime - startTime) / 1000.0; - pixelsPerSecond = reads * ImgWidth * ImgHeight / seconds; - printf("Result: %d reads in %f seconds = %f pixels/sec\n", - reads, seconds, pixelsPerSecond); - Benchmark = GL_FALSE; - } - else { - glReadPixels(APosX, APosY, ImgWidth, ImgHeight, - ReadFormat, ReadType, 0); - } - CheckError(__LINE__); - glRasterPos2i(BPosX, BPosY); - glDisable(GL_DITHER); - SetupPixelTransfer(GL_FALSE); - - CheckError(__LINE__); - - /*** draw from the Temp PBO */ - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, TempPBO); - glDrawPixels(ImgWidth, ImgHeight, ReadFormat, ReadType, 0); - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, 0); - - CheckError(__LINE__); - - /* do copypixels */ - glRasterPos2i(CPosX, 5); - PrintString("CopyPixels"); - glRasterPos2i(CPosX, CPosY); - glDisable(GL_DITHER); - SetupPixelTransfer(ScaleAndBias); - glCopyPixels(APosX, APosY, ImgWidth, ImgHeight, GL_COLOR); - - CheckError(__LINE__); - - if (!DrawFront) - glutSwapBuffers(); - else - glFinish(); -} - - -static void -Reshape( int width, int height ) -{ - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glOrtho( 0.0, width, 0.0, height, -1.0, 1.0 ); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); -} - - -static void -Key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - switch (key) { - case 'b': - Benchmark = GL_TRUE; - break; - case 's': - ScaleAndBias = !ScaleAndBias; - break; - case 'f': - DrawFront = !DrawFront; - if (DrawFront) { - glDrawBuffer(GL_FRONT); - glReadBuffer(GL_FRONT); - } - else { - glDrawBuffer(GL_BACK); - glReadBuffer(GL_BACK); - } - printf("glDrawBuffer(%s)\n", DrawFront ? "GL_FRONT" : "GL_BACK"); - break; - case 27: - exit(0); - break; - } - glutPostRedisplay(); -} - - -static void -Init(void) -{ - printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - - if (!glutExtensionSupported("GL_EXT_pixel_buffer_object")) { - printf("Sorry, this demo requires GL_EXT_pixel_buffer_object\n"); - exit(0); - } - - Image = LoadRGBImage( IMAGE_FILE, &ImgWidth, &ImgHeight, &ImgFormat ); - if (!Image) { - printf("Couldn't read %s\n", IMAGE_FILE); - exit(0); - } - - printf("Loaded %d by %d image\n", ImgWidth, ImgHeight ); - - if (ImgFormat == GL_RGB) { - /* convert to RGBA */ - int i; - GLubyte *image2 = (GLubyte *) malloc(ImgWidth * ImgHeight * 4); - printf("Converting RGB image to RGBA\n"); - for (i = 0; i < ImgWidth * ImgHeight; i++) { - image2[i*4+0] = Image[i*3+0]; - image2[i*4+1] = Image[i*3+1]; - image2[i*4+2] = Image[i*3+2]; - image2[i*4+3] = 255; - } - free(Image); - Image = image2; - ImgFormat = GL_RGBA; - } - - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - glPixelStorei(GL_UNPACK_ROW_LENGTH, ImgWidth); - glPixelStorei(GL_PACK_ALIGNMENT, 1); - glPixelStorei(GL_PACK_ROW_LENGTH, ImgWidth); - - Reset(); - - /* put image into DrawPBO */ - glGenBuffersARB(1, &DrawPBO); - glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, DrawPBO); - glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_EXT, - ImgWidth * ImgHeight * 4, Image, GL_STATIC_DRAW); - - /* Setup TempPBO - used for glReadPixels & glDrawPixels */ - glGenBuffersARB(1, &TempPBO); - glBindBufferARB(GL_PIXEL_PACK_BUFFER_EXT, TempPBO); - glBufferDataARB(GL_PIXEL_PACK_BUFFER_EXT, - ImgWidth * ImgHeight * 4, NULL, GL_DYNAMIC_COPY); - -} - - -int -main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( 750, 250 ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow(argv[0]); - glewInit(); - Init(); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - glutMainLoop(); - return 0; -} |