From 3214f20914134df07b070f471c0ca2d610ed3b81 Mon Sep 17 00:00:00 2001
From: Gert Wollny <gert.wollny@collabora.com>
Date: Mon, 25 Feb 2019 19:12:07 +0100
Subject: [PATCH] mesa: Expose EXT_texture_query_lod and add support for its
 use shaders

EXT_texture_query_lod provides the same functionality for GLES like
the ARB extension with the same name for GL.

v2: Set ES 3.0 as minimum GLES version as required by the extension

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
---
 src/compiler/glsl/builtin_functions.cpp  | 3 ++-
 src/compiler/glsl/glsl_parser_extras.cpp | 1 +
 src/compiler/glsl/glsl_parser_extras.h   | 2 ++
 src/mesa/main/extensions_table.h         | 1 +
 4 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/compiler/glsl/builtin_functions.cpp b/src/compiler/glsl/builtin_functions.cpp
index 0f747b947571..aba1a14bd902 100644
--- a/src/compiler/glsl/builtin_functions.cpp
+++ b/src/compiler/glsl/builtin_functions.cpp
@@ -405,7 +405,8 @@ static bool
 texture_query_lod(const _mesa_glsl_parse_state *state)
 {
    return state->stage == MESA_SHADER_FRAGMENT &&
-          state->ARB_texture_query_lod_enable;
+          (state->ARB_texture_query_lod_enable ||
+           state->EXT_texture_query_lod_enable);
 }
 
 static bool
diff --git a/src/compiler/glsl/glsl_parser_extras.cpp b/src/compiler/glsl/glsl_parser_extras.cpp
index bde93dd3f37e..fd3e9e55af1b 100644
--- a/src/compiler/glsl/glsl_parser_extras.cpp
+++ b/src/compiler/glsl/glsl_parser_extras.cpp
@@ -730,6 +730,7 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
    EXT(EXT_texture_array),
    EXT_AEP(EXT_texture_buffer),
    EXT_AEP(EXT_texture_cube_map_array),
+   EXT(EXT_texture_query_lod),
    EXT(INTEL_conservative_rasterization),
    EXT(INTEL_shader_atomic_float_minmax),
    EXT(MESA_shader_integer_functions),
diff --git a/src/compiler/glsl/glsl_parser_extras.h b/src/compiler/glsl/glsl_parser_extras.h
index b17b5125e0b9..f404efd96109 100644
--- a/src/compiler/glsl/glsl_parser_extras.h
+++ b/src/compiler/glsl/glsl_parser_extras.h
@@ -834,6 +834,8 @@ struct _mesa_glsl_parse_state {
    bool EXT_texture_buffer_warn;
    bool EXT_texture_cube_map_array_enable;
    bool EXT_texture_cube_map_array_warn;
+   bool EXT_texture_query_lod_enable;
+   bool EXT_texture_query_lod_warn;
    bool INTEL_conservative_rasterization_enable;
    bool INTEL_conservative_rasterization_warn;
    bool INTEL_shader_atomic_float_minmax_enable;
diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
index 05ed418d7500..a9773f701b61 100644
--- a/src/mesa/main/extensions_table.h
+++ b/src/mesa/main/extensions_table.h
@@ -301,6 +301,7 @@ EXT(EXT_texture_lod_bias                    , dummy_true
 EXT(EXT_texture_mirror_clamp                , EXT_texture_mirror_clamp               , GLL, GLC,  x ,  x , 2004)
 EXT(EXT_texture_norm16                      , dummy_true                             ,  x ,  x ,  x ,  31, 2014)
 EXT(EXT_texture_object                      , dummy_true                             , GLL,  x ,  x ,  x , 1995)
+EXT(EXT_texture_query_lod                   , ARB_texture_query_lod                  ,  x ,  x ,  x ,  30, 2019)
 EXT(EXT_texture_rectangle                   , NV_texture_rectangle                   , GLL,  x ,  x ,  x , 2004)
 EXT(EXT_texture_rg                          , ARB_texture_rg                         ,  x ,  x ,  x , ES2, 2011)
 EXT(EXT_texture_sRGB                        , EXT_texture_sRGB                       , GLL, GLC,  x ,  x , 2004)
-- 
2.20.1