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glsl: Add extension plumbing for OES/EXT_tessellation_shader.

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This adds the #extension directive support, built-in #defines,
lexer keyword support, and updates has_tessellation_shader().

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Kenneth Graunke
2016-07-08 12:00:30 -07:00
parent 722fd10456
commit 58709d36d7
4 changed files with 19 additions and 3 deletions
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2
src/compiler/glsl/glsl_lexer.ll
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@@ -311,7 +311,7 @@ invariant KEYWORD(120, 100, 120, 100, INVARIANT);
flat KEYWORD(130, 100, 130, 300, FLAT);
smooth KEYWORD(130, 300, 130, 300, SMOOTH);
noperspective KEYWORD(130, 300, 130, 0, NOPERSPECTIVE);
patch KEYWORD_WITH_ALT(0, 300, 400, 0, yyextra->ARB_tessellation_shader_enable, PATCH);
patch KEYWORD_WITH_ALT(0, 300, 400, 320, yyextra->has_tessellation_shader(), PATCH);
sampler1D DEPRECATED_ES_KEYWORD(SAMPLER1D);
sampler2D return SAMPLER2D;

3
src/compiler/glsl/glsl_parser.yy
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@@ -1274,7 +1274,8 @@ layout_qualifier_id:
}
}
if ($$.flags.i && !state->has_geometry_shader()) {
if ($$.flags.i && !state->has_geometry_shader() &&
!state->has_tessellation_shader()) {
_mesa_glsl_error(& @1, state, "#version 150 layout "
"qualifier `%s' used", $1);
}

4
src/compiler/glsl/glsl_parser_extras.cpp
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@@ -634,6 +634,8 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
EXT(OES_shader_io_blocks),
EXT(OES_shader_multisample_interpolation),
EXT(OES_standard_derivatives),
EXT(OES_tessellation_point_size),
EXT(OES_tessellation_shader),
EXT(OES_texture_3D),
EXT(OES_texture_buffer),
EXT(OES_texture_storage_multisample_2d_array),
@@ -653,6 +655,8 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
EXT(EXT_shader_integer_mix),
EXT(EXT_shader_io_blocks),
EXT(EXT_shader_samples_identical),
EXT(EXT_tessellation_point_size),
EXT(EXT_tessellation_shader),
EXT(EXT_texture_array),
EXT(EXT_texture_buffer),
EXT(MESA_shader_integer_functions),

13
src/compiler/glsl/glsl_parser_extras.h
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@@ -279,7 +279,10 @@ struct _mesa_glsl_parse_state {
bool has_tessellation_shader() const
{
return ARB_tessellation_shader_enable || is_version(400, 0);
return ARB_tessellation_shader_enable ||
OES_tessellation_shader_enable ||
EXT_tessellation_shader_enable ||
is_version(400, 320);
}
bool has_clip_distance() const
@@ -649,6 +652,10 @@ struct _mesa_glsl_parse_state {
bool OES_shader_multisample_interpolation_warn;
bool OES_standard_derivatives_enable;
bool OES_standard_derivatives_warn;
bool OES_tessellation_point_size_enable;
bool OES_tessellation_point_size_warn;
bool OES_tessellation_shader_enable;
bool OES_tessellation_shader_warn;
bool OES_texture_3D_enable;
bool OES_texture_3D_warn;
bool OES_texture_buffer_enable;
@@ -684,6 +691,10 @@ struct _mesa_glsl_parse_state {
bool EXT_shader_io_blocks_warn;
bool EXT_shader_samples_identical_enable;
bool EXT_shader_samples_identical_warn;
bool EXT_tessellation_point_size_enable;
bool EXT_tessellation_point_size_warn;
bool EXT_tessellation_shader_enable;
bool EXT_tessellation_shader_warn;
bool EXT_texture_array_enable;
bool EXT_texture_array_warn;
bool EXT_texture_buffer_enable;