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authorBrian Paul <brian.paul@tungstengraphics.com>2005-11-16 14:48:11 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2005-11-16 14:48:11 +0000
commit32fe233d54360f66d67314f3b06a6847570a4bd9 (patch)
tree6f49a7d8763c50988e88fa67d6ab08a24f02595c /progs
parent0f29ef6092b77a5047c92520bb8e773ef44bca7c (diff)
added -ds option to test GL_EXT_packed_depth_stencil with framebuffer objects
Diffstat (limited to 'progs')
-rw-r--r--progs/tests/fbotexture.c98
1 files changed, 76 insertions, 22 deletions
diff --git a/progs/tests/fbotexture.c b/progs/tests/fbotexture.c
index f348d202f4..ca6d393511 100644
--- a/progs/tests/fbotexture.c
+++ b/progs/tests/fbotexture.c
@@ -10,11 +10,13 @@
#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <math.h>
-#include <GL/glut.h>
+
static int Width = 400, Height = 400;
static int TexWidth = 512, TexHeight = 512;
@@ -23,6 +25,7 @@ static GLuint TexObj;
static GLuint DepthRB, StencilRB;
static GLboolean Anim = GL_FALSE;
static GLfloat Rot = 0.0;
+static GLboolean UsePackedDepthStencil = GL_FALSE;
static void
@@ -71,12 +74,15 @@ RenderTexture(void)
glClearColor(0.5, 0.5, 1.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
+ CheckError(__LINE__);
glEnable(GL_DEPTH_TEST);
glEnable(GL_STENCIL_TEST);
glStencilFunc(GL_NEVER, 1, ~0);
glStencilOp(GL_REPLACE, GL_KEEP, GL_REPLACE);
+ CheckError(__LINE__);
+
/* draw diamond-shaped stencil pattern */
glColor3f(0, 1, 0);
glBegin(GL_POLYGON);
@@ -90,6 +96,8 @@ RenderTexture(void)
glStencilFunc(GL_NOTEQUAL, 1, ~0);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
+ CheckError(__LINE__);
+
#if 0
glBegin(GL_POLYGON);
glColor3f(1, 0, 0);
@@ -174,6 +182,20 @@ Reshape(int width, int height)
static void
+CleanUp(void)
+{
+ glDeleteRenderbuffersEXT(1, &DepthRB);
+ if (!UsePackedDepthStencil)
+ glDeleteRenderbuffersEXT(1, &StencilRB);
+ glDeleteFramebuffersEXT(1, &MyFB);
+
+ glDeleteTextures(1, &TexObj);
+
+ exit(0);
+}
+
+
+static void
Key(unsigned char key, int x, int y)
{
(void) x;
@@ -186,8 +208,11 @@ Key(unsigned char key, int x, int y)
else
glutIdleFunc(NULL);
break;
+ case 's':
+ Rot += 2.0;
+ break;
case 27:
- exit(0);
+ CleanUp();
break;
}
glutPostRedisplay();
@@ -195,7 +220,7 @@ Key(unsigned char key, int x, int y)
static void
-Init(void)
+Init(int argc, char *argv[])
{
GLint i;
@@ -203,6 +228,16 @@ Init(void)
printf("GL_EXT_framebuffer_object not found!\n");
exit(0);
}
+
+ if (argc > 1 && strcmp(argv[1], "-ds") == 0) {
+ if (!glutExtensionSupported("GL_EXT_packed_depth_stencil")) {
+ printf("GL_EXT_packed_depth_stencil not found!\n");
+ exit(0);
+ }
+ UsePackedDepthStencil = GL_TRUE;
+ printf("Using GL_EXT_packed_depth_stencil\n");
+ }
+
printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
/* gen framebuffer id, delete it, do some assertions, just for testing */
@@ -224,38 +259,57 @@ Init(void)
assert(!glIsRenderbufferEXT(DepthRB));
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, DepthRB);
assert(glIsRenderbufferEXT(DepthRB));
- glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT,
- TexWidth, TexHeight);
+ if (UsePackedDepthStencil)
+ glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_STENCIL_EXT,
+ TexWidth, TexHeight);
+ else
+ glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT,
+ TexWidth, TexHeight);
+ CheckError(__LINE__);
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
GL_RENDERBUFFER_DEPTH_SIZE_EXT, &i);
+ CheckError(__LINE__);
printf("Depth renderbuffer size = %d bits\n", i);
assert(i > 0);
- /* make stencil renderbuffer */
- glGenRenderbuffersEXT(1, &StencilRB);
- assert(StencilRB);
- assert(!glIsRenderbufferEXT(StencilRB));
- glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, StencilRB);
- assert(glIsRenderbufferEXT(StencilRB));
- glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_STENCIL_INDEX,
- TexWidth, TexHeight);
- glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
- GL_RENDERBUFFER_STENCIL_SIZE_EXT, &i);
- printf("Stencil renderbuffer size = %d bits\n", i);
- assert(i > 0);
-
/* attach DepthRB to MyFB */
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT, DepthRB);
- /* attach StencilRB to MyFB */
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT,
- GL_RENDERBUFFER_EXT, StencilRB);
+ CheckError(__LINE__);
+
+ if (UsePackedDepthStencil) {
+ /* DepthRb is a combined depth/stencil renderbuffer */
+ glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+ GL_STENCIL_ATTACHMENT_EXT,
+ GL_RENDERBUFFER_EXT, DepthRB);
+ }
+ else {
+ /* make stencil renderbuffer */
+ glGenRenderbuffersEXT(1, &StencilRB);
+ assert(StencilRB);
+ assert(!glIsRenderbufferEXT(StencilRB));
+ glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, StencilRB);
+ assert(glIsRenderbufferEXT(StencilRB));
+ glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_STENCIL_INDEX,
+ TexWidth, TexHeight);
+ /* attach StencilRB to MyFB */
+ glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+ GL_STENCIL_ATTACHMENT_EXT,
+ GL_RENDERBUFFER_EXT, StencilRB);
+ }
+ glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
+ GL_RENDERBUFFER_STENCIL_SIZE_EXT, &i);
+ CheckError(__LINE__);
+ printf("Stencil renderbuffer size = %d bits\n", i);
+ assert(i > 0);
/* bind regular framebuffer */
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+ CheckError(__LINE__);
+
/* Make texture object/image */
glGenTextures(1, &TexObj);
glBindTexture(GL_TEXTURE_2D, TexObj);
@@ -282,7 +336,7 @@ main(int argc, char *argv[])
glutDisplayFunc(Display);
if (Anim)
glutIdleFunc(Idle);
- Init();
+ Init(argc, argv);
glutMainLoop();
return 0;
}