diff options
| -rw-r--r-- | progs/trivial/Makefile | 1 | ||||
| -rw-r--r-- | progs/trivial/SConscript | 1 | ||||
| -rw-r--r-- | progs/trivial/vbo-noninterleaved.c | 139 |
3 files changed, 141 insertions, 0 deletions
diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile index e255cdadc5..69b0408bbd 100644 --- a/progs/trivial/Makefile +++ b/progs/trivial/Makefile @@ -139,6 +139,7 @@ SOURCES = \ tristrip-flat.c \ tristrip.c \ vbo-drawarrays.c \ + vbo-noninterleaved.c \ vbo-drawelements.c \ vbo-drawrange.c \ vp-array.c \ diff --git a/progs/trivial/SConscript b/progs/trivial/SConscript index 0333418ad8..03ccb1436d 100644 --- a/progs/trivial/SConscript +++ b/progs/trivial/SConscript @@ -135,6 +135,7 @@ progs = [ 'tristrip-flat', 'tristrip', 'vbo-drawarrays', + 'vbo-noninterleaved', 'vbo-drawelements', 'vbo-drawrange', 'vp-array', diff --git a/progs/trivial/vbo-noninterleaved.c b/progs/trivial/vbo-noninterleaved.c new file mode 100644 index 0000000000..0672ca50ff --- /dev/null +++ b/progs/trivial/vbo-noninterleaved.c @@ -0,0 +1,139 @@ +/* Basic VBO */ + +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glew.h> +#include <GL/glut.h> + + +struct { + GLfloat pos[4][4]; + GLfloat col[4][4]; +} verts = +{ + /* Position: a quad + */ + { + { 0.9, -0.9, 0.0, 1.0 }, + { 0.9, 0.9, 0.0, 1.0 }, + { -0.9, 0.9, 0.0, 1.0 }, + { -0.9, -0.9, 0.0, 1.0 }, + }, + + /* Color: all red + */ + { + { 1.0, 0.0, 0.0, 1.0 }, + { 1.0, 0.0, 0.0, 1.0 }, + { 1.0, 0.0, 0.0, 1.0 }, + { 1.0, 0.0, 0.0, 1.0 }, + }, + + +}; + +GLuint arrayObj, elementObj; + +static void Init( void ) +{ + GLint errno; + GLuint prognum; + + static const char *prog1 = + "!!ARBvp1.0\n" + "MOV result.color, vertex.color;\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 ); + + glGenBuffersARB(1, &arrayObj); + glBindBufferARB(GL_ARRAY_BUFFER_ARB, arrayObj); + glBufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), &verts, GL_STATIC_DRAW_ARB); + + glVertexPointer( 4, GL_FLOAT, sizeof(verts.pos[0]), 0 ); + glColorPointer( 4, GL_FLOAT, sizeof(verts.col[0]), (void *)(4*4*sizeof(float)) ); + +} + + + +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_ARB); + +// glDrawArrays( GL_TRIANGLES, 0, 3 ); +// glDrawArrays( GL_TRIANGLES, 1, 3 ); + glDrawArrays( GL_QUADS, 0, 4 ); + + 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; +} |