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author | Bryan Cain <bryancain3@gmail.com> | 2013-02-15 08:53:20 -0600 |
---|---|---|
committer | Paul Berry <stereotype441@gmail.com> | 2013-08-01 20:20:36 -0700 |
commit | ff523771833cf2cfb6d69d61e86a28c26b8400be (patch) | |
tree | 8c5bbbcfa2552eed7a4d74ff34f174c623453d0d /src | |
parent | ae6eba3e32a142665d2ae6e15c9122d3201c0b5d (diff) | |
download | external_mesa3d-ff523771833cf2cfb6d69d61e86a28c26b8400be.zip external_mesa3d-ff523771833cf2cfb6d69d61e86a28c26b8400be.tar.gz external_mesa3d-ff523771833cf2cfb6d69d61e86a28c26b8400be.tar.bz2 |
glsl: add builtins for geometry shaders.
v2 (Paul Berry <stereotype441@gmail.com>): Account for rework of
builtin_variables.cpp. Use INTERP_QUALIFIER_FLAT for gl_PrimitiveID
so that it will obey provoking vertex conventions. Convert to GLSL
1.50 style geometry shaders.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
v3 (Paul Berry <stereotype441@gmail.com>): Be less obscure about
setting interpolation field of gl_Primitive variables.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src')
-rw-r--r-- | src/glsl/builtin_variables.cpp | 13 | ||||
-rw-r--r-- | src/glsl/builtins/ir/EmitVertex.ir | 5 | ||||
-rw-r--r-- | src/glsl/builtins/ir/EndPrimitive.ir | 5 | ||||
-rw-r--r-- | src/glsl/builtins/profiles/150.geom | 3 | ||||
-rwxr-xr-x | src/glsl/builtins/tools/generate_builtins.py | 6 |
5 files changed, 28 insertions, 4 deletions
diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp index 1e88b6a..6a808c0 100644 --- a/src/glsl/builtin_variables.cpp +++ b/src/glsl/builtin_variables.cpp @@ -686,8 +686,11 @@ builtin_variable_generator::generate_gs_special_vars() * the specific case of gl_PrimitiveIDIn. So we don't need to treat * gl_PrimitiveIDIn as an {ARB,EXT}_geometry_shader4-only variable. */ - add_input(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveIDIn"); - add_output(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveID"); + ir_variable *var; + var = add_input(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveIDIn"); + var->interpolation = INTERP_QUALIFIER_FLAT; + var = add_output(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveID"); + var->interpolation = INTERP_QUALIFIER_FLAT; } @@ -702,6 +705,12 @@ builtin_variable_generator::generate_fs_special_vars() if (state->is_version(120, 100)) add_input(VARYING_SLOT_PNTC, vec2_t, "gl_PointCoord"); + if (state->is_version(150, 0)) { + ir_variable *var = + add_input(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveID"); + var->interpolation = INTERP_QUALIFIER_FLAT; + } + /* gl_FragColor and gl_FragData were deprecated starting in desktop GLSL * 1.30, and were relegated to the compatibility profile in GLSL 4.20. * They were removed from GLSL ES 3.00. diff --git a/src/glsl/builtins/ir/EmitVertex.ir b/src/glsl/builtins/ir/EmitVertex.ir new file mode 100644 index 0000000..8ffb6c4 --- /dev/null +++ b/src/glsl/builtins/ir/EmitVertex.ir @@ -0,0 +1,5 @@ +((function EmitVertex + (signature void + (parameters) + ((emit-vertex))) +)) diff --git a/src/glsl/builtins/ir/EndPrimitive.ir b/src/glsl/builtins/ir/EndPrimitive.ir new file mode 100644 index 0000000..ed7e12a --- /dev/null +++ b/src/glsl/builtins/ir/EndPrimitive.ir @@ -0,0 +1,5 @@ +((function EndPrimitive + (signature void + (parameters) + ((end-primitive))) +)) diff --git a/src/glsl/builtins/profiles/150.geom b/src/glsl/builtins/profiles/150.geom new file mode 100644 index 0000000..d2ab891 --- /dev/null +++ b/src/glsl/builtins/profiles/150.geom @@ -0,0 +1,3 @@ +#version 150 +void EmitVertex(); +void EndPrimitive(); diff --git a/src/glsl/builtins/tools/generate_builtins.py b/src/glsl/builtins/tools/generate_builtins.py index 85bd5dd..54c5a49 100755 --- a/src/glsl/builtins/tools/generate_builtins.py +++ b/src/glsl/builtins/tools/generate_builtins.py @@ -125,7 +125,7 @@ def write_profiles(): def get_profile_list(): profile_files = [] - for extension in ['glsl', 'frag', 'vert']: + for extension in ['glsl', 'frag', 'vert', 'geom']: path_glob = path.join( path.join(builtins_dir, 'profiles'), '*.' + extension) profile_files.extend(glob(path_glob)) @@ -279,10 +279,12 @@ _mesa_glsl_initialize_functions(struct _mesa_glsl_parse_state *state) check = 'state->target == vertex_shader && ' elif profile.endswith('_frag'): check = 'state->target == fragment_shader && ' + elif profile.endswith('_geom'): + check = 'state->target == geometry_shader && ' else: check = '' - version = re.sub(r'_(glsl|vert|frag)$', '', profile) + version = re.sub(r'_(glsl|vert|frag|geom)$', '', profile) if version[0].isdigit(): is_es = version.endswith('es') if is_es: |