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-rw-r--r--progs/tests/bufferobj.c511
1 files changed, 0 insertions, 511 deletions
diff --git a/progs/tests/bufferobj.c b/progs/tests/bufferobj.c
deleted file mode 100644
index d4ca270016..0000000000
--- a/progs/tests/bufferobj.c
+++ /dev/null
@@ -1,511 +0,0 @@
-/*
- * Test GL_ARB_vertex_buffer_object
- * Also test GL_ARB_vertex_array_object if supported
- *
- * Brian Paul
- * 16 Sep 2003
- */
-
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-
-#define NUM_OBJECTS 10
-
-struct object
-{
- GLuint ArrayObjectID; /** GL_ARB_vertex_array_object */
- GLuint VertexBufferID;
- GLuint ColorBufferID;
- GLuint ElementsBufferID;
- GLuint NumVerts;
- GLuint VertexOffset;
- GLuint ColorOffset;
- GLuint VertexStride;
- GLuint ColorStride;
- GLuint NumElements;
-};
-
-static struct object Objects[NUM_OBJECTS];
-static GLuint NumObjects;
-
-static GLuint Win;
-
-static GLfloat Xrot = 0, Yrot = 0, Zrot = 0;
-static GLboolean Anim = GL_TRUE;
-static GLboolean Have_ARB_vertex_array_object = GL_FALSE;
-
-
-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 )
-{
- if (Have_ARB_vertex_array_object && obj->ArrayObjectID) {
- glBindVertexArray(obj->ArrayObjectID);
-
- 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);
- }
-
- glBindVertexArray(0);
- }
- else {
- /* no vertex array objects, must set vertex/color pointers per draw */
-
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->VertexBufferID);
- glVertexPointer(3, GL_FLOAT, obj->VertexStride, (void *) obj->VertexOffset);
- glEnableClientState(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
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->ColorBufferID);
- glColorPointer(3, GL_FLOAT, obj->ColorStride, (void *) obj->ColorOffset);
- glEnableClientState(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 = 7.0 * ((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 FreeBuffers(void)
-{
- int i;
- for (i = 0; i < NUM_OBJECTS; i++) {
- glDeleteBuffersARB(1, &Objects[i].VertexBufferID);
- glDeleteBuffersARB(1, &Objects[i].ColorBufferID);
- glDeleteBuffersARB(1, &Objects[i].ElementsBufferID);
- }
-}
-
-
-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:
- FreeBuffers();
- glutDestroyWindow(Win);
- 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();
-}
-
-
-/**
- * If GL_ARB_vertex_array_object is supported, create an array object
- * and set all the per-array state.
- */
-static void
-CreateVertexArrayObject(struct object *obj)
-{
- glGenVertexArrays(1, &obj->ArrayObjectID);
- glBindVertexArray(obj->ArrayObjectID);
-
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->VertexBufferID);
- glVertexPointer(3, GL_FLOAT, obj->VertexStride, (void *) obj->VertexOffset);
- glEnableClientState(GL_VERTEX_ARRAY);
-
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->ColorBufferID);
- glColorPointer(3, GL_FLOAT, obj->ColorStride, (void *) obj->ColorOffset);
- glEnableClientState(GL_COLOR_ARRAY);
-
- glBindVertexArray(0);
-}
-
-
-/*
- * Non-interleaved position/color data.
- */
-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->VertexBufferID = 0;
- glGenBuffersARB(1, &obj->VertexBufferID);
- obj->ColorBufferID = obj->VertexBufferID;
- assert(obj->VertexBufferID != 0);
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->VertexBufferID);
- 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->VertexStride = 0;
- obj->ColorStride = 0;
- 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);
-
- if (Have_ARB_vertex_array_object) {
- CreateVertexArrayObject(obj);
- }
-}
-
-
-/*
- * Interleaved position/color data.
- */
-static void MakeObject2(struct object *obj)
-{
- GLfloat *v;
- int start = 40; /* bytes, to test non-zero array offsets */
-
- glGenBuffersARB(1, &obj->VertexBufferID);
- obj->ColorBufferID = obj->VertexBufferID;
-
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->VertexBufferID);
- glBufferDataARB(GL_ARRAY_BUFFER_ARB, 1000, NULL, GL_STATIC_DRAW_ARB);
- v = (GLfloat *) glMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB);
-
- v += start / sizeof(GLfloat);
-
- /* Make triangle: interleaved colors, then positions */
- /* R G B X Y Z */
- v[0] = 0; v[1] = 1; v[2] = 0; v[3] = -1; v[4] = -1; v[5] = 0;
- v[6] = 0; v[7] = 1; v[8] = 0; v[9] = 1; v[10] = -1; v[11] = 0;
- v[12] = 1; v[13] = 1; v[14] = 0; v[15] = 0; v[16] = 1; v[17] = 0;
-
- obj->NumVerts = 3;
- obj->VertexOffset = start + 3 * sizeof(GLfloat);
- obj->ColorOffset = start;
- obj->VertexStride = 6 * sizeof(GLfloat);
- obj->ColorStride = 6 * sizeof(GLfloat);
-
- obj->NumElements = 0;
-
- glUnmapBufferARB(GL_ARRAY_BUFFER_ARB);
-
- if (Have_ARB_vertex_array_object) {
- CreateVertexArrayObject(obj);
- }
-}
-
-
-/*
- * Use an index buffer and glDrawElements().
- */
-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;
- obj->VertexStride = 0;
- obj->ColorStride = 0;
-
- bytes = obj->NumVerts * (3 + 3) * sizeof(GLfloat);
-
- /* Don't use glMap/UnmapBuffer for this object */
- glGenBuffersARB(1, &obj->VertexBufferID);
- obj->ColorBufferID = obj->VertexBufferID;
-
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->VertexBufferID);
- 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;
-
- if (Have_ARB_vertex_array_object) {
- CreateVertexArrayObject(obj);
- }
-}
-
-
-/*
- * Vertex and color data in different buffers.
- */
-static void MakeObject4(struct object *obj)
-{
- static const GLfloat vertexData[] = {
- 0, -1, 0,
- 0.5, 0, 0,
- 0, 1, 0,
- -0.5, 0, 0
- };
- static const GLfloat colorData[] = {
- 1, 1, 1,
- 1, 1, 0,
- .5, .5, 0,
- 1, 1, 0
- };
-
- obj->VertexOffset = 0;
- obj->VertexStride = 0;
- obj->ColorOffset = 0;
- obj->ColorStride = 0;
- obj->NumVerts = 4;
-
- glGenBuffersARB(1, &obj->VertexBufferID);
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->VertexBufferID);
- glBufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(vertexData), vertexData,
- GL_STATIC_DRAW_ARB);
-
- glGenBuffersARB(1, &obj->ColorBufferID);
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->ColorBufferID);
- glBufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(colorData), colorData,
- GL_STATIC_DRAW_ARB);
-
- /* Setup a buffer of indices to test the ELEMENTS path */
- obj->ElementsBufferID = 0;
- obj->NumElements = 0;
-
- if (Have_ARB_vertex_array_object) {
- CreateVertexArrayObject(obj);
- }
-}
-
-
-
-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));
-
- Have_ARB_vertex_array_object =
- glutExtensionSupported("GL_ARB_vertex_array_object");
-
- printf("Using GL_ARB_vertex_array_object: %s\n",
- (Have_ARB_vertex_array_object ? "yes" : "no"));
-
-
- /* 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));
- }
-
- memset(Objects, 0, sizeof(Objects));
- MakeObject1(Objects + 0);
- MakeObject2(Objects + 1);
- MakeObject3(Objects + 2);
- MakeObject4(Objects + 3);
- NumObjects = 4;
-}
-
-
-int main( int argc, char *argv[] )
-{
- glutInit( &argc, argv );
- glutInitWindowPosition( 0, 0 );
- glutInitWindowSize( 600, 300 );
- glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
- Win = glutCreateWindow(argv[0]);
- glewInit();
- glutReshapeFunc( Reshape );
- glutKeyboardFunc( Key );
- glutSpecialFunc( SpecialKey );
- glutDisplayFunc( Display );
- if (Anim)
- glutIdleFunc(Idle);
- Init();
- glutMainLoop();
- return 0;
-}
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