mesa: initial support for ARB_geometry_shader4
laying down the foundation for everything and implementing most of the
stuff.
linking, gl_VerticesIn and multidimensional inputs are left.
diff --git a/src/mesa/program/program.c b/src/mesa/program/program.c
index a6ada8a..cf46095 100644
--- a/src/mesa/program/program.c
+++ b/src/mesa/program/program.c
@@ -98,6 +98,13 @@
ctx->FragmentProgram.Cache = _mesa_new_program_cache();
#endif
+#if FEATURE_ARB_geometry_shader4
+ ctx->GeometryProgram.Enabled = GL_FALSE;
+ /* right now by default we don't have a geometry program */
+ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current,
+ NULL);
+ ctx->GeometryProgram.Cache = _mesa_new_program_cache();
+#endif
/* XXX probably move this stuff */
#if FEATURE_ATI_fragment_shader
@@ -123,6 +130,10 @@
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL);
_mesa_delete_program_cache(ctx, ctx->FragmentProgram.Cache);
#endif
+#if FEATURE_ARB_geometry_shader4
+ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, NULL);
+ _mesa_delete_program_cache(ctx, ctx->GeometryProgram.Cache);
+#endif
/* XXX probably move this stuff */
#if FEATURE_ATI_fragment_shader
if (ctx->ATIFragmentShader.Current) {
@@ -158,6 +169,12 @@
assert(ctx->FragmentProgram.Current);
#endif
+#if FEATURE_ARB_geometry_shader4
+ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current,
+ (struct gl_geometry_program *)
+ ctx->Shared->DefaultGeometryProgram);
+#endif
+
/* XXX probably move this stuff */
#if FEATURE_ATI_fragment_shader
if (ctx->ATIFragmentShader.Current) {
@@ -286,6 +303,20 @@
/**
+ * Initialize a new geometry program object.
+ */
+struct gl_program *
+_mesa_init_geometry_program( GLcontext *ctx, struct gl_geometry_program *prog,
+ GLenum target, GLuint id)
+{
+ if (prog)
+ return _mesa_init_program_struct( ctx, &prog->Base, target, id );
+ else
+ return NULL;
+}
+
+
+/**
* Allocate and initialize a new fragment/vertex program object but
* don't put it into the program hash table. Called via
* ctx->Driver.NewProgram. May be overridden (ie. replaced) by a
@@ -313,6 +344,11 @@
CALLOC_STRUCT(gl_fragment_program),
target, id );
break;
+ case MESA_GEOMETRY_PROGRAM:
+ prog = _mesa_init_geometry_program(ctx,
+ CALLOC_STRUCT(gl_geometry_program),
+ target, id);
+ break;
default:
_mesa_problem(ctx, "bad target in _mesa_new_program");
prog = NULL;
@@ -387,6 +423,8 @@
else if ((*ptr)->Target == GL_FRAGMENT_PROGRAM_ARB)
ASSERT(prog->Target == GL_FRAGMENT_PROGRAM_ARB ||
prog->Target == GL_FRAGMENT_PROGRAM_NV);
+ else if ((*ptr)->Target == MESA_GEOMETRY_PROGRAM)
+ ASSERT(prog->Target == MESA_GEOMETRY_PROGRAM);
}
if (*ptr == prog) {
return; /* no change */
@@ -398,7 +436,8 @@
#if 0
printf("Program %p ID=%u Target=%s Refcount-- to %d\n",
*ptr, (*ptr)->Id,
- ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : "FP"),
+ ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB ? "VP" :
+ ((*ptr)->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")),
(*ptr)->RefCount - 1);
#endif
ASSERT((*ptr)->RefCount > 0);
@@ -422,7 +461,8 @@
#if 0
printf("Program %p ID=%u Target=%s Refcount++ to %d\n",
prog, prog->Id,
- (prog->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : "FP"),
+ (prog->Target == GL_VERTEX_PROGRAM_ARB ? "VP" :
+ (prog->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")),
prog->RefCount);
#endif
/*_glthread_UNLOCK_MUTEX(prog->Mutex);*/
@@ -510,6 +550,16 @@
fpc->PixelCenterInteger = fp->PixelCenterInteger;
}
break;
+ case MESA_GEOMETRY_PROGRAM:
+ {
+ const struct gl_geometry_program *gp
+ = (const struct gl_geometry_program *) prog;
+ struct gl_geometry_program *gpc = (struct gl_geometry_program *) clone;
+ gpc->VerticesOut = gp->VerticesOut;
+ gpc->InputType = gp->InputType;
+ gpc->OutputType = gp->OutputType;
+ }
+ break;
default:
_mesa_problem(NULL, "Unexpected target in _mesa_clone_program");
}