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author | ftrapero <frantracer@gmail.com> | 2017-06-27 12:08:38 +0200 |
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committer | ftrapero <frantracer@gmail.com> | 2017-06-27 12:08:38 +0200 |
commit | b30506dface604c78e445905ce263f166945d67b (patch) | |
tree | 1c23f91f36eb445850b654daa9c5e30bb47072e5 /nx-X11/extras/Mesa_6.4.2/progs/tests/arbnpot.c | |
parent | c032f0e341c981036e9b3245a0e0710ad61599d0 (diff) | |
parent | 663631725ee2d633d9ec5821cd48953ffd188d00 (diff) | |
download | nx-libs-b30506dface604c78e445905ce263f166945d67b.tar.gz nx-libs-b30506dface604c78e445905ce263f166945d67b.tar.bz2 nx-libs-b30506dface604c78e445905ce263f166945d67b.zip |
Include mesa-6.4.2 project
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.2/progs/tests/arbnpot.c')
-rw-r--r-- | nx-X11/extras/Mesa_6.4.2/progs/tests/arbnpot.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.2/progs/tests/arbnpot.c b/nx-X11/extras/Mesa_6.4.2/progs/tests/arbnpot.c new file mode 100644 index 000000000..8107717e2 --- /dev/null +++ b/nx-X11/extras/Mesa_6.4.2/progs/tests/arbnpot.c @@ -0,0 +1,174 @@ +/* + * Test NPOT textures with the GL_ARB_texture_non_power_of_two extension. + * Brian Paul + * 2 July 2003 + */ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glut.h> +#include "../util/readtex.c" + +#define IMAGE_FILE "../images/girl.rgb" + +static GLfloat Zrot = 0; + +static void Display( void ) +{ + glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); + + glPushMatrix(); + glRotatef(Zrot, 0, 0, 1); + glBegin(GL_POLYGON); + glTexCoord2f(0, 0); + glVertex2f(-1, -1); + glTexCoord2f(1, 0); + glVertex2f(1, -1); + glTexCoord2f(1, 1); + glVertex2f(1, 1); + glTexCoord2f(0, 1); + glVertex2f(-1, 1); + glEnd(); + glPopMatrix(); + + glutSwapBuffers(); +} + + +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, 5.0, 25.0 ); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + glTranslatef( 0.0, 0.0, -7.0 ); +} + + +static void Key( unsigned char key, int x, int y ) +{ + (void) x; + (void) y; + switch (key) { + case 'z': + Zrot -= 1.0; + break; + case 'Z': + Zrot += 1.0; + break; + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void Init( void ) +{ + GLubyte *image; + int imgWidth, imgHeight, minDim, w; + GLenum imgFormat; + + if (!glutExtensionSupported("GL_ARB_texture_non_power_of_two")) { + printf("Sorry, this program requires GL_ARB_texture_non_power_of_two\n"); + exit(1); + } + +#if 1 + image = LoadRGBImage( IMAGE_FILE, &imgWidth, &imgHeight, &imgFormat ); + if (!image) { + printf("Couldn't read %s\n", IMAGE_FILE); + exit(0); + } +#else + int i, j; + imgFormat = GL_RGB; + imgWidth = 3; + imgHeight = 3; + image = malloc(imgWidth * imgHeight * 3); + for (i = 0; i < imgHeight; i++) { + for (j = 0; j < imgWidth; j++) { + int k = (i * imgWidth + j) * 3; + if ((i + j) & 1) { + image[k+0] = 255; + image[k+1] = 0; + image[k+2] = 0; + } + else { + image[k+0] = 0; + image[k+1] = 255; + image[k+2] = 0; + } + } + } +#endif + + printf("Read %d x %d\n", imgWidth, imgHeight); + + minDim = imgWidth < imgHeight ? imgWidth : imgHeight; + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glTexImage1D(GL_TEXTURE_1D, 0, GL_RGB, imgWidth, 0, + imgFormat, GL_UNSIGNED_BYTE, image); + assert(glGetError() == GL_NO_ERROR); + + glTexImage1D(GL_PROXY_TEXTURE_1D, 0, GL_RGB, imgWidth, 0, + imgFormat, GL_UNSIGNED_BYTE, image); + glGetTexLevelParameteriv(GL_PROXY_TEXTURE_1D, 0, GL_TEXTURE_WIDTH, &w); + assert(w == imgWidth); + + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, imgWidth, imgHeight, 0, + imgFormat, GL_UNSIGNED_BYTE, image); + assert(glGetError() == GL_NO_ERROR); + + glTexImage2D(GL_PROXY_TEXTURE_2D, 0, GL_RGB, imgWidth, imgHeight, 0, + imgFormat, GL_UNSIGNED_BYTE, image); + glGetTexLevelParameteriv(GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w); + assert(w == imgWidth); + + glTexImage3D(GL_TEXTURE_3D, 0, GL_RGB, imgWidth, imgHeight, 1, 0, + imgFormat, GL_UNSIGNED_BYTE, image); + assert(glGetError() == GL_NO_ERROR); + + glTexImage3D(GL_PROXY_TEXTURE_3D, 0, GL_RGB, imgWidth, imgHeight, 1, 0, + imgFormat, GL_UNSIGNED_BYTE, image); + glGetTexLevelParameteriv(GL_PROXY_TEXTURE_3D, 0, GL_TEXTURE_WIDTH, &w); + assert(w == imgWidth); + + glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, GL_RGB, + minDim, minDim, 0, + imgFormat, GL_UNSIGNED_BYTE, image); + assert(glGetError() == GL_NO_ERROR); + + glTexImage2D(GL_PROXY_TEXTURE_CUBE_MAP, 0, GL_RGB, + minDim, minDim, 0, + imgFormat, GL_UNSIGNED_BYTE, image); + glGetTexLevelParameteriv(GL_PROXY_TEXTURE_CUBE_MAP, 0, GL_TEXTURE_WIDTH, &w); + assert(w == minDim); + + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glEnable(GL_TEXTURE_2D); +} + + +int main( int argc, char *argv[] ) +{ + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( 400, 400 ); + glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); + glutCreateWindow(argv[0]); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutDisplayFunc( Display ); + Init(); + glutMainLoop(); + return 0; +} |