diff options
Diffstat (limited to 'progs')
| -rw-r--r-- | progs/tests/fbotexture.c | 98 |
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; } |