diff options
Diffstat (limited to 'progs/tests/bufferobj.c')
-rw-r--r-- | progs/tests/bufferobj.c | 359 |
1 files changed, 0 insertions, 359 deletions
diff --git a/progs/tests/bufferobj.c b/progs/tests/bufferobj.c deleted file mode 100644 index c765d2516ba..00000000000 --- a/progs/tests/bufferobj.c +++ /dev/null @@ -1,359 +0,0 @@ -/* - * Test GL_ARB_vertex_buffer_object - * - * Brian Paul - * 16 Sep 2003 - */ - - -#define GL_GLEXT_PROTOTYPES -#include <assert.h> -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glut.h> - -#define NUM_OBJECTS 10 - -struct object -{ - GLuint BufferID; - GLuint ElementsBufferID; - GLuint NumVerts; - GLuint VertexOffset; - GLuint ColorOffset; - GLuint NumElements; -}; - -static struct object Objects[NUM_OBJECTS]; -static GLuint NumObjects; - -static GLfloat Xrot = 0, Yrot = 0, Zrot = 0; -static GLboolean Anim = GL_TRUE; - - -static void CheckError(int line) -{ - GLenum err = glGetError(); - if (err) { - printf("GL Error 0x%x at line %d\n", (int) err, line); - } -} - - -static void DrawObject( const struct object *obj ) -{ - glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->BufferID); - glVertexPointer(3, GL_FLOAT, 0, (void *) obj->VertexOffset); - glEnable(GL_VERTEX_ARRAY); - - /* test push/pop attrib */ - /* XXX this leads to a segfault with NVIDIA's 53.36 driver */ -#if 0 - if (1) - { - glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT); - /*glVertexPointer(3, GL_FLOAT, 0, (void *) (obj->VertexOffset + 10000));*/ - glBindBufferARB(GL_ARRAY_BUFFER_ARB, 999999); - glPopClientAttrib(); - } -#endif - glColorPointer(3, GL_FLOAT, 0, (void *) obj->ColorOffset); - glEnable(GL_COLOR_ARRAY); - - if (obj->NumElements > 0) { - /* indexed arrays */ - glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, obj->ElementsBufferID); - glDrawElements(GL_LINE_LOOP, obj->NumElements, GL_UNSIGNED_INT, NULL); - } - else { - /* non-indexed arrays */ - glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0); - glDrawArrays(GL_LINE_LOOP, 0, obj->NumVerts); - } -} - - -static void Idle( void ) -{ - Zrot = 0.05 * glutGet(GLUT_ELAPSED_TIME); - glutPostRedisplay(); -} - - -static void Display( void ) -{ - int i; - - glClear( GL_COLOR_BUFFER_BIT ); - - for (i = 0; i < NumObjects; i++) { - float x = 5.0 * ((float) i / (NumObjects-1) - 0.5); - glPushMatrix(); - glTranslatef(x, 0, 0); - glRotatef(Xrot, 1, 0, 0); - glRotatef(Yrot, 0, 1, 0); - glRotatef(Zrot, 0, 0, 1); - - DrawObject(Objects + i); - - glPopMatrix(); - } - - CheckError(__LINE__); - glutSwapBuffers(); -} - - -static void Reshape( int width, int height ) -{ - float ar = (float) width / (float) height; - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glFrustum( -ar, ar, -1.0, 1.0, 5.0, 25.0 ); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); - glTranslatef( 0.0, 0.0, -15.0 ); -} - - -static void Key( unsigned char key, int x, int y ) -{ - const GLfloat step = 3.0; - (void) x; - (void) y; - switch (key) { - case 'a': - Anim = !Anim; - if (Anim) - glutIdleFunc(Idle); - else - glutIdleFunc(NULL); - break; - case 'z': - Zrot -= step; - break; - case 'Z': - Zrot += step; - break; - case 27: - exit(0); - break; - } - glutPostRedisplay(); -} - - -static void SpecialKey( int key, int x, int y ) -{ - const GLfloat step = 3.0; - (void) x; - (void) y; - switch (key) { - case GLUT_KEY_UP: - Xrot -= step; - break; - case GLUT_KEY_DOWN: - Xrot += step; - break; - case GLUT_KEY_LEFT: - Yrot -= step; - break; - case GLUT_KEY_RIGHT: - Yrot += step; - break; - } - glutPostRedisplay(); -} - - - -static void MakeObject1(struct object *obj) -{ - GLfloat *v, *c; - void *p; - int i; - GLubyte buffer[500]; - - for (i = 0; i < 500; i++) - buffer[i] = i & 0xff; - - obj->BufferID = 0; - glGenBuffersARB(1, &obj->BufferID); - assert(obj->BufferID != 0); - glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->BufferID); - glBufferDataARB(GL_ARRAY_BUFFER_ARB, 500, buffer, GL_STATIC_DRAW_ARB); - - for (i = 0; i < 500; i++) - buffer[i] = 0; - - glGetBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, 500, buffer); - - for (i = 0; i < 500; i++) - assert(buffer[i] == (i & 0xff)); - - glGetBufferParameterivARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_MAPPED_ARB, &i); - assert(!i); - - glGetBufferParameterivARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_USAGE_ARB, &i); - - v = (GLfloat *) glMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB); - - /* do some sanity tests */ - glGetBufferPointervARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_MAP_POINTER_ARB, &p); - assert(p == v); - - glGetBufferParameterivARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_SIZE_ARB, &i); - assert(i == 500); - - glGetBufferParameterivARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_USAGE_ARB, &i); - assert(i == GL_STATIC_DRAW_ARB); - - glGetBufferParameterivARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_ACCESS_ARB, &i); - assert(i == GL_WRITE_ONLY_ARB); - - glGetBufferParameterivARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_MAPPED_ARB, &i); - assert(i); - - /* Make rectangle */ - v[0] = -1; v[1] = -1; v[2] = 0; - v[3] = 1; v[4] = -1; v[5] = 0; - v[6] = 1; v[7] = 1; v[8] = 0; - v[9] = -1; v[10] = 1; v[11] = 0; - c = v + 12; - c[0] = 1; c[1] = 0; c[2] = 0; - c[3] = 1; c[4] = 0; c[5] = 0; - c[6] = 1; c[7] = 0; c[8] = 1; - c[9] = 1; c[10] = 0; c[11] = 1; - obj->NumVerts = 4; - obj->VertexOffset = 0; - obj->ColorOffset = 3 * sizeof(GLfloat) * obj->NumVerts; - obj->NumElements = 0; - - glUnmapBufferARB(GL_ARRAY_BUFFER_ARB); - - glGetBufferPointervARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_MAP_POINTER_ARB, &p); - assert(!p); - - glGetBufferParameterivARB(GL_ARRAY_BUFFER_ARB, GL_BUFFER_MAPPED_ARB, &i); - assert(!i); -} - - -static void MakeObject2(struct object *obj) -{ - GLfloat *v, *c; - - glGenBuffersARB(1, &obj->BufferID); - glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->BufferID); - glBufferDataARB(GL_ARRAY_BUFFER_ARB, 1000, NULL, GL_STATIC_DRAW_ARB); - v = (GLfloat *) glMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB); - - /* Make triangle */ - v[0] = -1; v[1] = -1; v[2] = 0; - v[3] = 1; v[4] = -1; v[5] = 0; - v[6] = 0; v[7] = 1; v[8] = 0; - c = v + 9; - c[0] = 0; c[1] = 1; c[2] = 0; - c[3] = 0; c[4] = 1; c[5] = 0; - c[6] = 1; c[7] = 1; c[8] = 0; - obj->NumVerts = 3; - obj->VertexOffset = 0; - obj->ColorOffset = 3 * sizeof(GLfloat) * obj->NumVerts; - obj->NumElements = 0; - - glUnmapBufferARB(GL_ARRAY_BUFFER_ARB); -} - - -static void MakeObject3(struct object *obj) -{ - GLfloat vertexData[1000]; - GLfloat *v, *c; - GLuint *i; - int bytes; - - /* Make rectangle */ - v = vertexData; - v[0] = -1; v[1] = -0.5; v[2] = 0; - v[3] = 1; v[4] = -0.5; v[5] = 0; - v[6] = 1; v[7] = 0.5; v[8] = 0; - v[9] = -1; v[10] = 0.5; v[11] = 0; - c = vertexData + 12; - c[0] = 0; c[1] = 0; c[2] = 1; - c[3] = 0; c[4] = 0; c[5] = 1; - c[6] = 0; c[7] = 1; c[8] = 1; - c[9] = 0; c[10] = 1; c[11] = 1; - obj->NumVerts = 4; - obj->VertexOffset = 0; - obj->ColorOffset = 3 * sizeof(GLfloat) * obj->NumVerts; - - bytes = obj->NumVerts * (3 + 3) * sizeof(GLfloat); - - /* Don't use glMap/UnmapBuffer for this object */ - glGenBuffersARB(1, &obj->BufferID); - glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->BufferID); - glBufferDataARB(GL_ARRAY_BUFFER_ARB, bytes, vertexData, GL_STATIC_DRAW_ARB); - - /* Setup a buffer of indices to test the ELEMENTS path */ - glGenBuffersARB(1, &obj->ElementsBufferID); - glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, obj->ElementsBufferID); - glBufferDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 100, NULL, GL_STATIC_DRAW_ARB); - i = (GLuint *) glMapBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, GL_READ_WRITE_ARB); - i[0] = 0; - i[1] = 1; - i[2] = 2; - i[3] = 3; - glUnmapBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB); - obj->NumElements = 4; -} - - - -static void Init( void ) -{ - if (!glutExtensionSupported("GL_ARB_vertex_buffer_object")) { - printf("GL_ARB_vertex_buffer_object not found!\n"); - exit(0); - } - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - - /* Test buffer object deletion */ - if (1) { - static GLubyte data[1000]; - GLuint id = 999; - glBindBufferARB(GL_ARRAY_BUFFER_ARB, id); - glBufferDataARB(GL_ARRAY_BUFFER_ARB, 1000, data, GL_STATIC_DRAW_ARB); - glVertexPointer(3, GL_FLOAT, 0, (void *) 0); - glDeleteBuffersARB(1, &id); - assert(!glIsBufferARB(id)); - glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0); - glVertexPointer(3, GL_FLOAT, 0, (void *) 0); - assert(!glIsBufferARB(id)); - } - - MakeObject1(Objects + 0); - MakeObject2(Objects + 1); - MakeObject3(Objects + 2); - NumObjects = 3; -} - - -int main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( 600, 300 ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - glutCreateWindow(argv[0]); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutSpecialFunc( SpecialKey ); - glutDisplayFunc( Display ); - if (Anim) - glutIdleFunc(Idle); - Init(); - glutMainLoop(); - return 0; -} |