diff options
Diffstat (limited to 'src/glsl/builtin_functions.cpp')
| -rw-r--r-- | src/glsl/builtin_functions.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/glsl/builtin_functions.cpp b/src/glsl/builtin_functions.cpp index eadc20c6c1d..94b57810720 100644 --- a/src/glsl/builtin_functions.cpp +++ b/src/glsl/builtin_functions.cpp @@ -359,6 +359,12 @@ shader_image_load_store(const _mesa_glsl_parse_state *state) state->ARB_shader_image_load_store_enable); } +static bool +gs_streams(const _mesa_glsl_parse_state *state) +{ + return gpu_shader5(state) && gs_only(state); +} + /** @} */ /******************************************************************************/ @@ -594,6 +600,10 @@ private: B0(EmitVertex) B0(EndPrimitive) + ir_function_signature *_EmitStreamVertex(builtin_available_predicate avail, + const glsl_type *stream_type); + ir_function_signature *_EndStreamPrimitive(builtin_available_predicate avail, + const glsl_type *stream_type); B2(textureQueryLod); B1(textureQueryLevels); @@ -1708,6 +1718,14 @@ builtin_builder::create_builtins() add_function("EmitVertex", _EmitVertex(), NULL); add_function("EndPrimitive", _EndPrimitive(), NULL); + add_function("EmitStreamVertex", + _EmitStreamVertex(gs_streams, glsl_type::uint_type), + _EmitStreamVertex(gs_streams, glsl_type::int_type), + NULL); + add_function("EndStreamPrimitive", + _EndStreamPrimitive(gs_streams, glsl_type::uint_type), + _EndStreamPrimitive(gs_streams, glsl_type::int_type), + NULL); add_function("textureQueryLOD", _textureQueryLod(glsl_type::sampler1D_type, glsl_type::float_type), @@ -3879,6 +3897,26 @@ builtin_builder::_EmitVertex() } ir_function_signature * +builtin_builder::_EmitStreamVertex(builtin_available_predicate avail, + const glsl_type *stream_type) +{ + /* Section 8.12 (Geometry Shader Functions) of the GLSL 4.0 spec says: + * + * "Emit the current values of output variables to the current output + * primitive on stream stream. The argument to stream must be a constant + * integral expression." + */ + ir_variable *stream = + new(mem_ctx) ir_variable(stream_type, "stream", ir_var_const_in); + + MAKE_SIG(glsl_type::void_type, avail, 1, stream); + + body.emit(new(mem_ctx) ir_emit_vertex(var_ref(stream))); + + return sig; +} + +ir_function_signature * builtin_builder::_EndPrimitive() { MAKE_SIG(glsl_type::void_type, gs_only, 0); @@ -3890,6 +3928,26 @@ builtin_builder::_EndPrimitive() } ir_function_signature * +builtin_builder::_EndStreamPrimitive(builtin_available_predicate avail, + const glsl_type *stream_type) +{ + /* Section 8.12 (Geometry Shader Functions) of the GLSL 4.0 spec says: + * + * "Completes the current output primitive on stream stream and starts + * a new one. The argument to stream must be a constant integral + * expression." + */ + ir_variable *stream = + new(mem_ctx) ir_variable(stream_type, "stream", ir_var_const_in); + + MAKE_SIG(glsl_type::void_type, avail, 1, stream); + + body.emit(new(mem_ctx) ir_end_primitive(var_ref(stream))); + + return sig; +} + +ir_function_signature * builtin_builder::_textureQueryLod(const glsl_type *sampler_type, const glsl_type *coord_type) { |