diff options
author | Eric Anholt <eric@anholt.net> | 2010-05-21 09:32:38 -0700 |
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committer | Eric Anholt <eric@anholt.net> | 2010-05-21 12:20:39 -0700 |
commit | 68fc4b415e322f6744299e39864fbc377c6eff74 (patch) | |
tree | 4bafffd8b0105174f3c5c0ae327a005be9145990 /progs/tests/getteximage.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/getteximage.c')
-rw-r--r-- | progs/tests/getteximage.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/progs/tests/getteximage.c b/progs/tests/getteximage.c deleted file mode 100644 index e4053b8de1..0000000000 --- a/progs/tests/getteximage.c +++ /dev/null @@ -1,273 +0,0 @@ -/** - * Test glGetTexImage() - * Brian Paul - * 9 June 2009 - */ - - -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glew.h> -#include <GL/glut.h> - -static int Win; - - -static void -TestGetTexImage(GLboolean npot) -{ - GLuint iter; - GLubyte *data = (GLubyte *) malloc(1024 * 1024 * 4); - GLubyte *data2 = (GLubyte *) malloc(1024 * 1024 * 4); - - glEnable(GL_TEXTURE_2D); - - printf("glTexImage2D + glGetTexImage:\n"); - - for (iter = 0; iter < 8; iter++) { - GLint p = (iter % 8) + 3; - GLint w = npot ? (p * 20) : (1 << p); - GLint h = npot ? (p * 10) : (1 << p); - GLuint i; - GLint level = 0; - - printf(" Testing %d x %d tex image\n", w, h); - - /* fill data */ - for (i = 0; i < w * h * 4; i++) { - data[i] = i & 0xff; - data2[i] = 0; - } - - glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, w, h, 0, - GL_RGBA, GL_UNSIGNED_BYTE, data); - - glBegin(GL_POINTS); - glVertex2f(0, 0); - glEnd(); - - /* get */ - glGetTexImage(GL_TEXTURE_2D, level, GL_RGBA, GL_UNSIGNED_BYTE, data2); - - /* compare */ - for (i = 0; i < w * h * 4; i++) { - if (data2[i] != data[i]) { - printf("glTexImage + glGetTexImage failure!\n"); - printf("Expected value %d, found %d\n", data[i], data2[i]); - abort(); - } - } - - /* get as BGRA */ - glGetTexImage(GL_TEXTURE_2D, level, GL_BGRA, GL_UNSIGNED_BYTE, data2); - - /* compare */ - { - const GLubyte *rgba = (GLubyte *) data; - const GLubyte *bgra = (GLubyte *) data2; - for (i = 0; i < w * h; i += 4) { - if (rgba[i+0] != bgra[i+2] || - rgba[i+1] != bgra[i+1] || - rgba[i+2] != bgra[i+0] || - rgba[i+3] != bgra[i+3]) { - printf("glTexImage + glGetTexImage(GL_BGRA) failure!\n"); - printf("Expected value %d, found %d\n", data[i], data2[i]); - abort(); - } - } - } - - } - - printf("Passed\n"); - glDisable(GL_TEXTURE_2D); - free(data); - free(data2); -} - - -static GLboolean -ColorsEqual(const GLubyte ref[4], const GLubyte act[4]) -{ - if (abs((int) ref[0] - (int) act[0]) > 1 || - abs((int) ref[1] - (int) act[1]) > 1 || - abs((int) ref[2] - (int) act[2]) > 1 || - abs((int) ref[3] - (int) act[3]) > 1) { - printf("expected %d %d %d %d\n", ref[0], ref[1], ref[2], ref[3]); - printf("found %d %d %d %d\n", act[0], act[1], act[2], act[3]); - return GL_FALSE; - } - return GL_TRUE; -} - - -static void -TestGetTexImageRTT(GLboolean npot) -{ - GLuint iter; - - printf("Render to texture + glGetTexImage:\n"); - - for (iter = 0; iter < 8; iter++) { - - GLuint fb, tex; - GLint w, h; - GLint level = 0; - - if (npot) { - w = 200 + iter * 40; - h = 200 + iter * 12; - } - else { - w = 4 << iter; - h = 4 << iter; - } - - glGenTextures(1, &tex); - glGenFramebuffersEXT(1, &fb); - - glBindTexture(GL_TEXTURE_2D, tex); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, - GL_RGBA, GL_UNSIGNED_BYTE, NULL); - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb); - glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, - GL_TEXTURE_2D, tex, level); - - glViewport(0, 0, w, h); - - printf(" Testing %d x %d tex image\n", w, h); - { - static const GLubyte blue[4] = {0, 0, 255, 255}; - GLubyte color[4]; - GLubyte *data2 = (GLubyte *) malloc(w * h * 4); - GLuint i; - - /* random clear color */ - for (i = 0; i < 4; i++) { - color[i] = rand() % 256; - } - - glClearColor(color[0] / 255.0, - color[1] / 255.0, - color[2] / 255.0, - color[3] / 255.0); - - glClear(GL_COLOR_BUFFER_BIT); - - /* draw polygon over top half, in blue */ - glColor4ubv(blue); - glRectf(0, 0.5, 1.0, 1.0); - - /* get */ - glGetTexImage(GL_TEXTURE_2D, level, GL_RGBA, GL_UNSIGNED_BYTE, data2); - - /* compare */ - for (i = 0; i < w * h; i += 4) { - if (i < w * h / 2) { - /* lower half */ - if (!ColorsEqual(color, data2 + i * 4)) { - printf("Render to texture failure (expected clear color)!\n"); - abort(); - } - } - else { - /* upper half */ - if (!ColorsEqual(blue, data2 + i * 4)) { - printf("Render to texture failure (expected blue)!\n"); - abort(); - } - } - } - - free(data2); - } - - glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - glDeleteFramebuffersEXT(1, &fb); - glDeleteTextures(1, &tex); - - } - - printf("Passed\n"); -} - - - - -static void -Draw(void) -{ - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - TestGetTexImage(GL_FALSE); - if (glutExtensionSupported("GL_ARB_texture_non_power_of_two")) - TestGetTexImage(GL_TRUE); - - if (glutExtensionSupported("GL_EXT_framebuffer_object") || - glutExtensionSupported("GL_ARB_framebuffer_object")) { - TestGetTexImageRTT(GL_FALSE); - if (glutExtensionSupported("GL_ARB_texture_non_power_of_two")) - TestGetTexImageRTT(GL_TRUE); - } - - glutDestroyWindow(Win); - exit(0); - - glutSwapBuffers(); -} - - -static void -Reshape(int width, int height) -{ - glViewport(0, 0, width, height); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(0, 1, 0, 1, -1, 1); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glTranslatef(0.0, 0.0, 0.0); -} - - -static void -Key(unsigned char key, int x, int y) -{ - (void) x; - (void) y; - switch (key) { - case 27: - glutDestroyWindow(Win); - exit(0); - break; - } - glutPostRedisplay(); -} - - -static void -Init(void) -{ -} - - -int -main(int argc, char *argv[]) -{ - glutInit(&argc, argv); - glutInitWindowPosition(0, 0); - glutInitWindowSize(400, 400); - glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); - Win = glutCreateWindow(argv[0]); - glewInit(); - glutReshapeFunc(Reshape); - glutKeyboardFunc(Key); - glutDisplayFunc(Draw); - Init(); - glutMainLoop(); - return 0; -} |