Module: Demos Branch: master Commit: 09fb3da886168ab3aa635acac09fba45db1c3610 URL: http://cgit.freedesktop.org/mesa/demos/commit/?id=09fb3da886168ab3aa635acac09fba45db1c3610
Author: Keith Whitwell <kei...@vmware.com> Date: Tue Oct 5 09:53:56 2010 +0100 trivial: add drawelements-large --- src/trivial/SConscript | 1 + src/trivial/drawelements-large.c | 121 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 122 insertions(+), 0 deletions(-) diff --git a/src/trivial/SConscript b/src/trivial/SConscript index 24b4f91..84270a4 100644 --- a/src/trivial/SConscript +++ b/src/trivial/SConscript @@ -15,6 +15,7 @@ progs = [ 'drawarrays', 'draw2arrays', 'drawelements', + 'drawelements-large', 'drawrange', 'flat-clip', 'fs-tri', diff --git a/src/trivial/drawelements-large.c b/src/trivial/drawelements-large.c new file mode 100644 index 0000000..fc23985 --- /dev/null +++ b/src/trivial/drawelements-large.c @@ -0,0 +1,121 @@ +/* Test rebasing */ + +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glew.h> +#include <GL/glut.h> + +#define NR_VERTS 20000 +GLfloat verts[NR_VERTS][4]; +GLushort indices[NR_VERTS*2]; + + + +static void Init( void ) +{ + GLint errno; + GLuint prognum; + GLint i; + + static const char *prog1 = + "!!ARBvp1.0\n" + "MOV result.color, {1.0}.xxxx;\n" + "MOV result.position, vertex.position;\n" + "END\n"; + + glGenProgramsARB(1, &prognum); + glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum); + glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(prog1), (const GLubyte *) prog1); + + assert(glIsProgramARB(prognum)); + errno = glGetError(); + printf("glGetError = %d\n", errno); + if (errno != GL_NO_ERROR) + { + GLint errorpos; + + glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos); + printf("errorpos: %d\n", errorpos); + printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + } + + + glEnableClientState( GL_VERTEX_ARRAY ); + glEnableClientState( GL_COLOR_ARRAY ); + glVertexPointer( 3, GL_FLOAT, sizeof(verts[0]), verts ); + + + for (i = 0; i < NR_VERTS; i++) { + verts[i][0] = cos(i / (float)NR_VERTS * 2.0 * 3.141592); + verts[i][1] = sin(i / (float)NR_VERTS * 2.0 * 3.141592); + verts[i][2] = 0.0; + verts[i][3] = 1.0; + + indices[2*i+0] = i; + indices[2*i+1] = (i+1 == NR_VERTS) ? 0 : i+1; + } +} + + + +static void Display( void ) +{ + glClearColor(0.3, 0.3, 0.3, 1); + glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); + + glEnable(GL_VERTEX_PROGRAM_NV); + + /* Should have min_index == 1, maybe force a rebase: + */ + glDrawElements( GL_LINES, NR_VERTS*2, GL_UNSIGNED_SHORT, indices ); + + glFlush(); +} + + +static void Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + /*glTranslatef( 0.0, 0.0, -15.0 );*/ +} + + +static void Key( unsigned char key, int x, int y ) +{ + (void) x; + (void) y; + switch (key) { + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + + + +int main( int argc, char *argv[] ) +{ + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( 250, 250 ); + glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH ); + glutCreateWindow(argv[0]); + glewInit(); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutDisplayFunc( Display ); + Init(); + glutMainLoop(); + return 0; +} _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-commit