diff options
author | Eric Anholt <eric@anholt.net> | 2010-03-25 14:48:25 -0700 |
---|---|---|
committer | Eric Anholt <eric@anholt.net> | 2010-03-25 14:48:25 -0700 |
commit | b3f743ab0badc0ca7cba16d7989ec7ba368f6b36 (patch) | |
tree | 3a1d1f3bd34a9b7360ec7e8347f9d624b1645c02 /ir_variable.cpp | |
parent | 7c15bb2465b2c22a7de810b399b4aa7bfa1467c0 (diff) |
Set up fragment shader builtin variables.
Diffstat (limited to 'ir_variable.cpp')
-rw-r--r-- | ir_variable.cpp | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/ir_variable.cpp b/ir_variable.cpp index 283842c..9344170 100644 --- a/ir_variable.cpp +++ b/ir_variable.cpp @@ -127,6 +127,57 @@ initialize_vs_variables(exec_list *instructions, } } +static void +generate_110_fs_variables(exec_list *instructions, + glsl_symbol_table *symtab) +{ + for (unsigned i = 0; i < Elements(builtin_core_fs_variables); i++) { + add_builtin_variable(& builtin_core_fs_variables[i], + instructions, symtab); + } + + /* FINISHME: Add support for gl_FragData[GL_MAX_DRAW_BUFFERS]. */ +} + +static void +generate_120_fs_variables(exec_list *instructions, + glsl_symbol_table *symtab) +{ + /* GLSL version 1.20 did not add any built-in variables in the fragment + * shader. + */ + generate_110_fs_variables(instructions, symtab); +} + +static void +generate_130_fs_variables(exec_list *instructions, + glsl_symbol_table *symtab) +{ + generate_120_fs_variables(instructions, symtab); + + /* FINISHME: Add support fo gl_ClipDistance. The size of this array is + * FINISHME: implementation dependent based on the value of + * FINISHME: GL_MAX_CLIP_DISTANCES. + */ +} + +static void +initialize_fs_variables(exec_list *instructions, + struct _mesa_glsl_parse_state *state) +{ + + switch (state->language_version) { + case 110: + generate_110_fs_variables(instructions, state->symbols); + break; + case 120: + generate_120_fs_variables(instructions, state->symbols); + break; + case 130: + generate_130_fs_variables(instructions, state->symbols); + break; + } +} void _mesa_glsl_initialize_variables(exec_list *instructions, @@ -137,7 +188,9 @@ _mesa_glsl_initialize_variables(exec_list *instructions, initialize_vs_variables(instructions, state); break; case geometry_shader: + break; case fragment_shader: + initialize_fs_variables(instructions, state); break; } } |