mesa: Add support for OES_texture_cube_map_array

This has a separate enable flag because this extension also requires
OES_geometry_shader.  It is possible that some drivers may support
OpenGL ES 3.1 and ARB_texture_cube_map but not support
OES_geometry_shader.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

5 files changed, 47 insertions, 29 deletions

diff --git a/src/compiler/glsl/builtin_functions.cpp b/src/compiler/glsl/builtin_functions.cpp
index 161c98bd01..64bf8d8a48 100644
--- a/src/compiler/glsl/builtin_functions.cpp
+++ b/src/compiler/glsl/builtin_functions.cpp
@@ -245,6 +245,14 @@ gpu_shader5_es(const _mesa_glsl_parse_state *state)
 }
 
 static bool
+gpu_shader5_or_OES_texture_cube_map_array(const _mesa_glsl_parse_state *state)
+{
+   return state->is_version(400, 320) ||
+          state->ARB_gpu_shader5_enable ||
+          state->OES_texture_cube_map_array_enable;
+}
+
+static bool
 es31_not_gs5(const _mesa_glsl_parse_state *state)
 {
    return state->is_version(0, 310) && !gpu_shader5_es(state);
@@ -358,11 +366,12 @@ texture_query_lod(const _mesa_glsl_parse_state *state)
 }
 
 static bool
-texture_gather(const _mesa_glsl_parse_state *state)
+texture_gather_cube_map_array(const _mesa_glsl_parse_state *state)
 {
-   return state->is_version(400, 0) ||
+   return state->is_version(400, 320) ||
           state->ARB_texture_gather_enable ||
-          state->ARB_gpu_shader5_enable;
+          state->ARB_gpu_shader5_enable ||
+          state->OES_texture_cube_map_array_enable;
 }
 
 static bool
@@ -2554,9 +2563,9 @@ builtin_builder::create_builtins()
                 _texture(ir_tg4, texture_gather_or_es31, glsl_type::ivec4_type, glsl_type::isamplerCube_type, glsl_type::vec3_type),
                 _texture(ir_tg4, texture_gather_or_es31, glsl_type::uvec4_type, glsl_type::usamplerCube_type, glsl_type::vec3_type),
 
-                _texture(ir_tg4, texture_gather, glsl_type::vec4_type, glsl_type::samplerCubeArray_type, glsl_type::vec4_type),
-                _texture(ir_tg4, texture_gather, glsl_type::ivec4_type, glsl_type::isamplerCubeArray_type, glsl_type::vec4_type),
-                _texture(ir_tg4, texture_gather, glsl_type::uvec4_type, glsl_type::usamplerCubeArray_type, glsl_type::vec4_type),
+                _texture(ir_tg4, texture_gather_cube_map_array, glsl_type::vec4_type, glsl_type::samplerCubeArray_type, glsl_type::vec4_type),
+                _texture(ir_tg4, texture_gather_cube_map_array, glsl_type::ivec4_type, glsl_type::isamplerCubeArray_type, glsl_type::vec4_type),
+                _texture(ir_tg4, texture_gather_cube_map_array, glsl_type::uvec4_type, glsl_type::usamplerCubeArray_type, glsl_type::vec4_type),
 
                 _texture(ir_tg4, gpu_shader5_or_es31, glsl_type::vec4_type, glsl_type::sampler2D_type, glsl_type::vec2_type, TEX_COMPONENT),
                 _texture(ir_tg4, gpu_shader5_or_es31, glsl_type::ivec4_type, glsl_type::isampler2D_type, glsl_type::vec2_type, TEX_COMPONENT),
@@ -2574,14 +2583,14 @@ builtin_builder::create_builtins()
                 _texture(ir_tg4, gpu_shader5_or_es31, glsl_type::ivec4_type, glsl_type::isamplerCube_type, glsl_type::vec3_type, TEX_COMPONENT),
                 _texture(ir_tg4, gpu_shader5_or_es31, glsl_type::uvec4_type, glsl_type::usamplerCube_type, glsl_type::vec3_type, TEX_COMPONENT),
 
-                _texture(ir_tg4, gpu_shader5, glsl_type::vec4_type, glsl_type::samplerCubeArray_type, glsl_type::vec4_type, TEX_COMPONENT),
-                _texture(ir_tg4, gpu_shader5, glsl_type::ivec4_type, glsl_type::isamplerCubeArray_type, glsl_type::vec4_type, TEX_COMPONENT),
-                _texture(ir_tg4, gpu_shader5, glsl_type::uvec4_type, glsl_type::usamplerCubeArray_type, glsl_type::vec4_type, TEX_COMPONENT),
+                _texture(ir_tg4, gpu_shader5_or_OES_texture_cube_map_array, glsl_type::vec4_type, glsl_type::samplerCubeArray_type, glsl_type::vec4_type, TEX_COMPONENT),
+                _texture(ir_tg4, gpu_shader5_or_OES_texture_cube_map_array, glsl_type::ivec4_type, glsl_type::isamplerCubeArray_type, glsl_type::vec4_type, TEX_COMPONENT),
+                _texture(ir_tg4, gpu_shader5_or_OES_texture_cube_map_array, glsl_type::uvec4_type, glsl_type::usamplerCubeArray_type, glsl_type::vec4_type, TEX_COMPONENT),
 
                 _texture(ir_tg4, gpu_shader5_or_es31, glsl_type::vec4_type, glsl_type::sampler2DShadow_type, glsl_type::vec2_type),
                 _texture(ir_tg4, gpu_shader5_or_es31, glsl_type::vec4_type, glsl_type::sampler2DArrayShadow_type, glsl_type::vec3_type),
                 _texture(ir_tg4, gpu_shader5_or_es31, glsl_type::vec4_type, glsl_type::samplerCubeShadow_type, glsl_type::vec3_type),
-                _texture(ir_tg4, gpu_shader5, glsl_type::vec4_type, glsl_type::samplerCubeArrayShadow_type, glsl_type::vec4_type),
+                _texture(ir_tg4, gpu_shader5_or_OES_texture_cube_map_array, glsl_type::vec4_type, glsl_type::samplerCubeArrayShadow_type, glsl_type::vec4_type),
                 _texture(ir_tg4, gpu_shader5, glsl_type::vec4_type, glsl_type::sampler2DRectShadow_type, glsl_type::vec2_type),
                 NULL);
 
diff --git a/src/compiler/glsl/builtin_types.cpp b/src/compiler/glsl/builtin_types.cpp
index 5f208f8e9d..d40f785c28 100644
--- a/src/compiler/glsl/builtin_types.cpp
+++ b/src/compiler/glsl/builtin_types.cpp
@@ -177,7 +177,7 @@ static const struct builtin_type_versions {
    T(samplerCube,                     110, 100)
    T(sampler1DArray,                  130, 999)
    T(sampler2DArray,                  130, 300)
-   T(samplerCubeArray,                400, 999)
+   T(samplerCubeArray,                400, 320)
    T(sampler2DRect,                   140, 999)
    T(samplerBuffer,                   140, 320)
    T(sampler2DMS,                     150, 310)
@@ -189,7 +189,7 @@ static const struct builtin_type_versions {
    T(isamplerCube,                    130, 300)
    T(isampler1DArray,                 130, 999)
    T(isampler2DArray,                 130, 300)
-   T(isamplerCubeArray,               400, 999)
+   T(isamplerCubeArray,               400, 320)
    T(isampler2DRect,                  140, 999)
    T(isamplerBuffer,                  140, 320)
    T(isampler2DMS,                    150, 310)
@@ -201,7 +201,7 @@ static const struct builtin_type_versions {
    T(usamplerCube,                    130, 300)
    T(usampler1DArray,                 130, 999)
    T(usampler2DArray,                 130, 300)
-   T(usamplerCubeArray,               400, 999)
+   T(usamplerCubeArray,               400, 320)
    T(usampler2DRect,                  140, 999)
    T(usamplerBuffer,                  140, 320)
    T(usampler2DMS,                    150, 310)
@@ -212,7 +212,7 @@ static const struct builtin_type_versions {
    T(samplerCubeShadow,               130, 300)
    T(sampler1DArrayShadow,            130, 999)
    T(sampler2DArrayShadow,            130, 300)
-   T(samplerCubeArrayShadow,          400, 999)
+   T(samplerCubeArrayShadow,          400, 320)
    T(sampler2DRectShadow,             140, 999)
 
    T(struct_gl_DepthRangeParameters,  110, 100)
@@ -225,7 +225,7 @@ static const struct builtin_type_versions {
    T(imageBuffer,                     420, 320)
    T(image1DArray,                    420, 999)
    T(image2DArray,                    420, 310)
-   T(imageCubeArray,                  420, 999)
+   T(imageCubeArray,                  420, 320)
    T(image2DMS,                       420, 999)
    T(image2DMSArray,                  420, 999)
    T(iimage1D,                        420, 999)
@@ -236,7 +236,7 @@ static const struct builtin_type_versions {
    T(iimageBuffer,                    420, 320)
    T(iimage1DArray,                   420, 999)
    T(iimage2DArray,                   420, 310)
-   T(iimageCubeArray,                 420, 999)
+   T(iimageCubeArray,                 420, 320)
    T(iimage2DMS,                      420, 999)
    T(iimage2DMSArray,                 420, 999)
    T(uimage1D,                        420, 999)
@@ -247,7 +247,7 @@ static const struct builtin_type_versions {
    T(uimageBuffer,                    420, 320)
    T(uimage1DArray,                   420, 999)
    T(uimage2DArray,                   420, 310)
-   T(uimageCubeArray,                 420, 999)
+   T(uimageCubeArray,                 420, 320)
    T(uimage2DMS,                      420, 999)
    T(uimage2DMSArray,                 420, 999)
 
@@ -298,7 +298,8 @@ _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
     * by the version-based loop, but attempting to add them a second time
     * is harmless.
     */
-   if (state->ARB_texture_cube_map_array_enable) {
+   if (state->ARB_texture_cube_map_array_enable ||
+       state->OES_texture_cube_map_array_enable) {
       add_type(symbols, glsl_type::samplerCubeArray_type);
       add_type(symbols, glsl_type::samplerCubeArrayShadow_type);
       add_type(symbols, glsl_type::isamplerCubeArray_type);
@@ -337,6 +338,13 @@ _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
       add_type(symbols, glsl_type::sampler3D_type);
    }
 
+   if (state->ARB_shader_image_load_store_enable ||
+       state->OES_texture_cube_map_array_enable) {
+      add_type(symbols, glsl_type::imageCubeArray_type);
+      add_type(symbols, glsl_type::iimageCubeArray_type);
+      add_type(symbols, glsl_type::uimageCubeArray_type);
+   }
+
    if (state->ARB_shader_image_load_store_enable) {
       add_type(symbols, glsl_type::image1D_type);
       add_type(symbols, glsl_type::image2D_type);
@@ -346,7 +354,6 @@ _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
       add_type(symbols, glsl_type::imageBuffer_type);
       add_type(symbols, glsl_type::image1DArray_type);
       add_type(symbols, glsl_type::image2DArray_type);
-      add_type(symbols, glsl_type::imageCubeArray_type);
       add_type(symbols, glsl_type::image2DMS_type);
       add_type(symbols, glsl_type::image2DMSArray_type);
       add_type(symbols, glsl_type::iimage1D_type);
@@ -357,7 +364,6 @@ _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
       add_type(symbols, glsl_type::iimageBuffer_type);
       add_type(symbols, glsl_type::iimage1DArray_type);
       add_type(symbols, glsl_type::iimage2DArray_type);
-      add_type(symbols, glsl_type::iimageCubeArray_type);
       add_type(symbols, glsl_type::iimage2DMS_type);
       add_type(symbols, glsl_type::iimage2DMSArray_type);
       add_type(symbols, glsl_type::uimage1D_type);
@@ -368,7 +374,6 @@ _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
       add_type(symbols, glsl_type::uimageBuffer_type);
       add_type(symbols, glsl_type::uimage1DArray_type);
       add_type(symbols, glsl_type::uimage2DArray_type);
-      add_type(symbols, glsl_type::uimageCubeArray_type);
       add_type(symbols, glsl_type::uimage2DMS_type);
       add_type(symbols, glsl_type::uimage2DMSArray_type);
    }
diff --git a/src/compiler/glsl/glsl_lexer.ll b/src/compiler/glsl/glsl_lexer.ll
index ad95f0298f..2ed11ef870 100644
--- a/src/compiler/glsl/glsl_lexer.ll
+++ b/src/compiler/glsl/glsl_lexer.ll
@@ -348,10 +348,10 @@ isampler2DMSArray  KEYWORD_WITH_ALT(150, 300, 150, 320, yyextra->ARB_texture_mul
 usampler2DMSArray  KEYWORD_WITH_ALT(150, 300, 150, 320, yyextra->ARB_texture_multisample_enable || yyextra->OES_texture_storage_multisample_2d_array_enable, USAMPLER2DMSARRAY);
 
    /* keywords available with ARB_texture_cube_map_array_enable extension on desktop GLSL */
-samplerCubeArray   KEYWORD_WITH_ALT(400, 310, 400, 0, yyextra->ARB_texture_cube_map_array_enable, SAMPLERCUBEARRAY);
-isamplerCubeArray KEYWORD_WITH_ALT(400, 310, 400, 0, yyextra->ARB_texture_cube_map_array_enable, ISAMPLERCUBEARRAY);
-usamplerCubeArray KEYWORD_WITH_ALT(400, 310, 400, 0, yyextra->ARB_texture_cube_map_array_enable, USAMPLERCUBEARRAY);
-samplerCubeArrayShadow   KEYWORD_WITH_ALT(400, 310, 400, 0, yyextra->ARB_texture_cube_map_array_enable, SAMPLERCUBEARRAYSHADOW);
+samplerCubeArray   KEYWORD_WITH_ALT(400, 310, 400, 320, yyextra->ARB_texture_cube_map_array_enable || yyextra->OES_texture_cube_map_array_enable, SAMPLERCUBEARRAY);
+isamplerCubeArray KEYWORD_WITH_ALT(400, 310, 400, 320, yyextra->ARB_texture_cube_map_array_enable || yyextra->OES_texture_cube_map_array_enable, ISAMPLERCUBEARRAY);
+usamplerCubeArray KEYWORD_WITH_ALT(400, 310, 400, 320, yyextra->ARB_texture_cube_map_array_enable || yyextra->OES_texture_cube_map_array_enable, USAMPLERCUBEARRAY);
+samplerCubeArrayShadow   KEYWORD_WITH_ALT(400, 310, 400, 320, yyextra->ARB_texture_cube_map_array_enable || yyextra->OES_texture_cube_map_array_enable, SAMPLERCUBEARRAYSHADOW);
 
 samplerExternalOES		{
 			  if (yyextra->OES_EGL_image_external_enable)
@@ -372,7 +372,7 @@ imageCube       KEYWORD_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_l
 imageBuffer     KEYWORD_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, IMAGEBUFFER);
 image1DArray    KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IMAGE1DARRAY);
 image2DArray    KEYWORD_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, IMAGE2DARRAY);
-imageCubeArray  KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IMAGECUBEARRAY);
+imageCubeArray  KEYWORD_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->OES_texture_cube_map_array_enable, IMAGECUBEARRAY);
 image2DMS       KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IMAGE2DMS);
 image2DMSArray  KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IMAGE2DMSARRAY);
 iimage1D        KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IIMAGE1D);
@@ -383,7 +383,7 @@ iimageCube      KEYWORD_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_l
 iimageBuffer    KEYWORD_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, IIMAGEBUFFER);
 iimage1DArray   KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IIMAGE1DARRAY);
 iimage2DArray   KEYWORD_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, IIMAGE2DARRAY);
-iimageCubeArray KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IIMAGECUBEARRAY);
+iimageCubeArray KEYWORD_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->OES_texture_cube_map_array_enable, IIMAGECUBEARRAY);
 iimage2DMS      KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IIMAGE2DMS);
 iimage2DMSArray KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, IIMAGE2DMSARRAY);
 uimage1D        KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, UIMAGE1D);
@@ -394,7 +394,7 @@ uimageCube      KEYWORD_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_l
 uimageBuffer    KEYWORD_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, UIMAGEBUFFER);
 uimage1DArray   KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, UIMAGE1DARRAY);
 uimage2DArray   KEYWORD_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, UIMAGE2DARRAY);
-uimageCubeArray KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, UIMAGECUBEARRAY);
+uimageCubeArray KEYWORD_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->OES_texture_cube_map_array_enable, UIMAGECUBEARRAY);
 uimage2DMS      KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, UIMAGE2DMS);
 uimage2DMSArray KEYWORD_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, UIMAGE2DMSARRAY);
 image1DShadow           KEYWORD(130, 300, 0, 0, IMAGE1DSHADOW);
diff --git a/src/compiler/glsl/glsl_parser_extras.cpp b/src/compiler/glsl/glsl_parser_extras.cpp
index b5c5fdc574..80f37f34f2 100644
--- a/src/compiler/glsl/glsl_parser_extras.cpp
+++ b/src/compiler/glsl/glsl_parser_extras.cpp
@@ -640,6 +640,7 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
    EXT(OES_tessellation_shader),
    EXT(OES_texture_3D),
    EXT(OES_texture_buffer),
+   EXT(OES_texture_cube_map_array),
    EXT(OES_texture_storage_multisample_2d_array),
 
    /* All other extensions go here, sorted alphabetically.
diff --git a/src/compiler/glsl/glsl_parser_extras.h b/src/compiler/glsl/glsl_parser_extras.h
index 82ce6a7816..63a8a676b7 100644
--- a/src/compiler/glsl/glsl_parser_extras.h
+++ b/src/compiler/glsl/glsl_parser_extras.h
@@ -320,7 +320,8 @@ struct _mesa_glsl_parse_state {
    bool has_texture_cube_map_array() const
    {
       return ARB_texture_cube_map_array_enable ||
-             is_version(400, 0);
+             OES_texture_cube_map_array_enable ||
+             is_version(400, 320);
    }
 
    void process_version_directive(YYLTYPE *locp, int version,
@@ -688,6 +689,8 @@ struct _mesa_glsl_parse_state {
    bool OES_texture_3D_warn;
    bool OES_texture_buffer_enable;
    bool OES_texture_buffer_warn;
+   bool OES_texture_cube_map_array_enable;
+   bool OES_texture_cube_map_array_warn;
    bool OES_texture_storage_multisample_2d_array_enable;
    bool OES_texture_storage_multisample_2d_array_warn;