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-rw-r--r--progs/tests/Makefile1
-rw-r--r--progs/tests/bufferobj.c89
-rw-r--r--progs/tests/fbotexture.c31
-rw-r--r--progs/tests/mapvbo.c138
4 files changed, 234 insertions, 25 deletions
diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index 34c9ab1dce..a70a6ab9ab 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -54,6 +54,7 @@ SOURCES = \
jkrahntest.c \
lineclip.c \
manytex.c \
+ mapvbo.c \
minmag.c \
mipmap_limits.c \
mipmap_view.c \
diff --git a/progs/tests/bufferobj.c b/progs/tests/bufferobj.c
index d1a85392e1..9edb86e575 100644
--- a/progs/tests/bufferobj.c
+++ b/progs/tests/bufferobj.c
@@ -17,7 +17,8 @@
struct object
{
- GLuint BufferID;
+ GLuint VertexBufferID;
+ GLuint ColorBufferID;
GLuint ElementsBufferID;
GLuint NumVerts;
GLuint VertexOffset;
@@ -47,7 +48,7 @@ static void CheckError(int line)
static void DrawObject( const struct object *obj )
{
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->BufferID);
+ glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->VertexBufferID);
glVertexPointer(3, GL_FLOAT, obj->VertexStride, (void *) obj->VertexOffset);
glEnable(GL_VERTEX_ARRAY);
@@ -62,6 +63,7 @@ static void DrawObject( const struct object *obj )
glPopClientAttrib();
}
#endif
+ glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->ColorBufferID);
glColorPointer(3, GL_FLOAT, obj->ColorStride, (void *) obj->ColorOffset);
glEnable(GL_COLOR_ARRAY);
@@ -92,7 +94,7 @@ static void Display( void )
glClear( GL_COLOR_BUFFER_BIT );
for (i = 0; i < NumObjects; i++) {
- float x = 5.0 * ((float) i / (NumObjects-1) - 0.5);
+ float x = 7.0 * ((float) i / (NumObjects-1) - 0.5);
glPushMatrix();
glTranslatef(x, 0, 0);
glRotatef(Xrot, 1, 0, 0);
@@ -125,8 +127,11 @@ static void Reshape( int width, int height )
static void FreeBuffers(void)
{
int i;
- for (i = 0; i < NUM_OBJECTS; i++)
- glDeleteBuffersARB(1, &Objects[i].BufferID);
+ for (i = 0; i < NUM_OBJECTS; i++) {
+ glDeleteBuffersARB(1, &Objects[i].VertexBufferID);
+ glDeleteBuffersARB(1, &Objects[i].ColorBufferID);
+ glDeleteBuffersARB(1, &Objects[i].ElementsBufferID);
+ }
}
@@ -182,7 +187,9 @@ static void SpecialKey( int key, int x, int y )
}
-
+/*
+ * Non-interleaved position/color data.
+ */
static void MakeObject1(struct object *obj)
{
GLfloat *v, *c;
@@ -193,10 +200,11 @@ static void MakeObject1(struct object *obj)
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);
+ 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++)
@@ -257,13 +265,18 @@ static void MakeObject1(struct object *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->BufferID);
- glBindBufferARB(GL_ARRAY_BUFFER_ARB, obj->BufferID);
+ 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);
@@ -287,6 +300,9 @@ static void MakeObject2(struct object *obj)
}
+/*
+ * Use an index buffer and glDrawElements().
+ */
static void MakeObject3(struct object *obj)
{
GLfloat vertexData[1000];
@@ -314,8 +330,10 @@ static void MakeObject3(struct object *obj)
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);
+ 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 */
@@ -332,6 +350,46 @@ static void MakeObject3(struct object *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;
+}
+
+
static void Init( void )
{
@@ -358,7 +416,8 @@ static void Init( void )
MakeObject1(Objects + 0);
MakeObject2(Objects + 1);
MakeObject3(Objects + 2);
- NumObjects = 3;
+ MakeObject4(Objects + 3);
+ NumObjects = 4;
}
diff --git a/progs/tests/fbotexture.c b/progs/tests/fbotexture.c
index 1f7c45fc79..ae993576b0 100644
--- a/progs/tests/fbotexture.c
+++ b/progs/tests/fbotexture.c
@@ -26,9 +26,16 @@
static int Win = 0;
static int Width = 400, Height = 400;
-static GLenum TexTarget = GL_TEXTURE_2D; /*GL_TEXTURE_RECTANGLE_ARB;*/
+#if 1
+static GLenum TexTarget = GL_TEXTURE_2D;
static int TexWidth = 512, TexHeight = 512;
-/*static int TexWidth = 600, TexHeight = 600;*/
+static GLenum TexIntFormat = GL_RGB; /* either GL_RGB or GL_RGBA */
+#else
+static GLenum TexTarget = GL_TEXTURE_RECTANGLE_ARB;
+static int TexWidth = 200, TexHeight = 200;
+static GLenum TexIntFormat = GL_RGB5; /* either GL_RGB or GL_RGBA */
+#endif
+static GLuint TextureLevel = 0; /* which texture level to render to */
static GLuint MyFB;
static GLuint TexObj;
@@ -38,8 +45,6 @@ static GLfloat Rot = 0.0;
static GLboolean UsePackedDepthStencil = GL_FALSE;
static GLboolean UsePackedDepthStencilBoth = GL_FALSE;
static GLboolean Use_ARB_fbo = GL_FALSE;
-static GLuint TextureLevel = 0; /* which texture level to render to */
-static GLenum TexIntFormat = GL_RGB; /* either GL_RGB or GL_RGBA */
static GLboolean Cull = GL_FALSE;
static GLboolean Wireframe = GL_FALSE;
@@ -404,8 +409,12 @@ AttachDepthAndStencilBuffers(GLuint fbo,
return GL_FALSE;
status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
- if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
+ if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ glDeleteRenderbuffersEXT(1, depthRbOut);
+ *depthRbOut = 0;
+ glDeleteRenderbuffersEXT(1, &rb);
return GL_FALSE;
+ }
*stencilRbOut = rb;
}
@@ -554,15 +563,17 @@ Init(void)
/* make two image levels */
glTexImage2D(TexTarget, 0, TexIntFormat, TexWidth, TexHeight, 0,
GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- glTexImage2D(TexTarget, 1, TexIntFormat, TexWidth/2, TexHeight/2, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- TexWidth = TexWidth >> TextureLevel;
- TexHeight = TexHeight >> TextureLevel;
+ if (TexTarget == GL_TEXTURE_2D) {
+ glTexImage2D(TexTarget, 1, TexIntFormat, TexWidth/2, TexHeight/2, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ TexWidth = TexWidth >> TextureLevel;
+ TexHeight = TexHeight >> TextureLevel;
+ glTexParameteri(TexTarget, GL_TEXTURE_MAX_LEVEL, TextureLevel);
+ }
glTexParameteri(TexTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(TexTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(TexTarget, GL_TEXTURE_BASE_LEVEL, TextureLevel);
- glTexParameteri(TexTarget, GL_TEXTURE_MAX_LEVEL, TextureLevel);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
diff --git a/progs/tests/mapvbo.c b/progs/tests/mapvbo.c
new file mode 100644
index 0000000000..49e120de73
--- /dev/null
+++ b/progs/tests/mapvbo.c
@@ -0,0 +1,138 @@
+/*
+ * Test glMapBuffer() call immediately after glDrawArrays().
+ * See details below.
+ *
+ * NOTE: Do not use freeglut with this test! It calls the Display()
+ * callback twice right away instead of just once.
+ *
+ * Brian Paul
+ * 27 Feb 2009
+ */
+
+
+#define GL_GLEXT_PROTOTYPES
+#include <stdio.h>
+#include <stdlib.h>
+#include <GL/glut.h>
+
+static GLuint BufferID;
+
+
+static GLuint Win;
+
+
+
+
+/*
+ * Create VBO (position and color) and load with data.
+ */
+static void
+SetupBuffers(void)
+{
+ static const GLfloat data[] = {
+ /* vertex */ /* color */
+ 0, -1, 0, 1, 1, 0,
+ 1, 0, 0, 1, 1, 0,
+ 0, 1, 0, 1, 1, 0,
+ -1, 0, 0, 1, 1, 0
+ };
+
+ glGenBuffersARB(1, &BufferID);
+ glBindBufferARB(GL_ARRAY_BUFFER_ARB, BufferID);
+ glBufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(data), data,
+ GL_STATIC_DRAW_ARB);
+}
+
+
+static void
+Draw(void)
+{
+ static int count = 1;
+
+ printf("Draw Frame %d\n", count);
+ count++;
+
+ glBindBufferARB(GL_ARRAY_BUFFER_ARB, BufferID);
+ glVertexPointer(3, GL_FLOAT, 24, 0);
+ glEnable(GL_VERTEX_ARRAY);
+
+ glColorPointer(3, GL_FLOAT, 24, (void*) 12);
+ glEnable(GL_COLOR_ARRAY);
+
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+ if (0)
+ glFinish();
+
+ /* Immediately map the color buffer and change something.
+ * This should not effect the first glDrawArrays above, but the
+ * next time we draw we should see a black vertex.
+ */
+ if (1) {
+ GLfloat *m = (GLfloat *) glMapBufferARB(GL_ARRAY_BUFFER_ARB,
+ GL_WRITE_ONLY_ARB);
+ m[3] = m[4] = m[5] = 0.0f; /* black vertex */
+ glUnmapBufferARB(GL_ARRAY_BUFFER_ARB);
+ }
+}
+
+
+static void Display( void )
+{
+ glClear( GL_COLOR_BUFFER_BIT );
+ Draw();
+ 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 )
+{
+ (void) x;
+ (void) y;
+ if (key == 27) {
+ glutDestroyWindow(Win);
+ exit(0);
+ }
+ glutPostRedisplay();
+}
+
+
+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));
+
+ SetupBuffers();
+}
+
+
+int main( int argc, char *argv[] )
+{
+ glutInit( &argc, argv );
+ glutInitWindowPosition( 0, 0 );
+ glutInitWindowSize( 300, 300 );
+ glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
+ Win = glutCreateWindow(argv[0]);
+ glutReshapeFunc( Reshape );
+ glutKeyboardFunc( Key );
+ glutDisplayFunc( Display );
+ Init();
+ glutMainLoop();
+ return 0;
+}
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