Enabled multisample texture limit queries in ES 3.1.

src/Magnum/AbstractTexture.cpp

@@ -62,9 +62,13 @@ Float AbstractTexture::maxLodBias() {
 }
 #endif
 
-#ifndef MAGNUM_TARGET_GLES
+#ifndef MAGNUM_TARGET_GLES2
 Int AbstractTexture::maxColorSamples() {
+    #ifndef MAGNUM_TARGET_GLES
     if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_multisample>())
+    #else
+    if(!Context::current()->isVersionSupported(Version::GLES310))
+    #endif
         return 0;
 
     GLint& value = Context::current()->state().texture->maxColorSamples;
@@ -77,7 +81,11 @@ Int AbstractTexture::maxColorSamples() {
 }
 
 Int AbstractTexture::maxDepthSamples() {
+    #ifndef MAGNUM_TARGET_GLES
     if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_multisample>())
+    #else
+    if(!Context::current()->isVersionSupported(Version::GLES310))
+    #endif
         return 0;
 
     GLint& value = Context::current()->state().texture->maxDepthSamples;
@@ -90,7 +98,11 @@ Int AbstractTexture::maxDepthSamples() {
 }
 
 Int AbstractTexture::maxIntegerSamples() {
+    #ifndef MAGNUM_TARGET_GLES
     if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_multisample>())
+    #else
+    if(!Context::current()->isVersionSupported(Version::GLES310))
+    #endif
         return 0;
 
     GLint& value = Context::current()->state().texture->maxIntegerSamples;

src/Magnum/AbstractTexture.h

@@ -153,15 +153,15 @@ class MAGNUM_EXPORT AbstractTexture: public AbstractObject {
         static Float maxLodBias();
         #endif
 
-        #ifndef MAGNUM_TARGET_GLES
+        #ifndef MAGNUM_TARGET_GLES2
         /**
          * @brief Max supported color sample count
          *
          * The result is cached, repeated queries don't result in repeated
-         * OpenGL calls. If extension @extension{ARB,texture_multisample} is
-         * not available, returns `0`.
+         * OpenGL calls. If neither extension @extension{ARB,texture_multisample}
+         * (part of OpenGL 3.2) nor OpenGL ES 3.1 is available, returns `0`.
          * @see @fn_gl{Get} with @def_gl{MAX_COLOR_TEXTURE_SAMPLES}
-         * @requires_gl Multisample textures are not available in OpenGL ES.
+         * @requires_gles30 Not defined in OpenGL ES 2.0
          */
         static Int maxColorSamples();
 
@@ -169,10 +169,10 @@ class MAGNUM_EXPORT AbstractTexture: public AbstractObject {
          * @brief Max supported depth sample count
          *
          * The result is cached, repeated queries don't result in repeated
-         * OpenGL calls. If extension @extension{ARB,texture_multisample} is
-         * not available, returns `0`.
+         * OpenGL calls. If neither extension @extension{ARB,texture_multisample}
+         * (part of OpenGL 3.2) nor OpenGL ES 3.1 is available, returns `0`.
          * @see @fn_gl{Get} with @def_gl{MAX_DEPTH_TEXTURE_SAMPLES}
-         * @requires_gl Multisample textures are not available in OpenGL ES.
+         * @requires_gles30 Not defined in OpenGL ES 2.0
          */
         static Int maxDepthSamples();
 
@@ -180,10 +180,10 @@ class MAGNUM_EXPORT AbstractTexture: public AbstractObject {
          * @brief Max supported integer sample count
          *
          * The result is cached, repeated queries don't result in repeated
-         * OpenGL calls. If extension @extension{ARB,texture_multisample} is
-         * not available, returns `0`.
+         * OpenGL calls. If neither extension @extension{ARB,texture_multisample}
+         * (part of OpenGL 3.2) nor OpenGL ES 3.1 is available, returns `0`.
          * @see @fn_gl{Get} with @def_gl{MAX_INTEGER_SAMPLES}
-         * @requires_gl Multisample textures are not available in OpenGL ES.
+         * @requires_gles30 Not defined in OpenGL ES 2.0
          */
         static Int maxIntegerSamples();
         #endif

src/Magnum/Implementation/TextureState.cpp

@@ -50,8 +50,11 @@ TextureState::TextureState(Context& context, std::vector<std::string>& extension
     maxLodBias{0.0f},
     #endif
     maxMaxAnisotropy(0.0f), currentTextureUnit(0)
+    #ifndef MAGNUM_TARGET_GLES2
+    , maxColorSamples(0), maxDepthSamples(0), maxIntegerSamples(0)
+    #endif
     #ifndef MAGNUM_TARGET_GLES
-    , maxColorSamples(0), maxDepthSamples(0), maxIntegerSamples(0), bufferOffsetAlignment(0)
+    , bufferOffsetAlignment(0)
     #endif
 {
     /* Bind implementation */

src/Magnum/Implementation/TextureState.h

@@ -99,11 +99,13 @@ struct TextureState {
     #endif
     GLfloat maxMaxAnisotropy;
     GLint currentTextureUnit;
-    #ifndef MAGNUM_TARGET_GLES
+    #ifndef MAGNUM_TARGET_GLES2
     GLint maxColorSamples,
         maxDepthSamples,
-        maxIntegerSamples,
-        bufferOffsetAlignment;
+        maxIntegerSamples;
+    #endif
+    #ifndef MAGNUM_TARGET_GLES
+    GLint bufferOffsetAlignment;
     #endif
 
     std::vector<std::pair<GLenum, GLuint>> bindings;

src/Magnum/Test/CMakeLists.txt

@@ -78,14 +78,14 @@ if(BUILD_GL_TESTS)
     corrade_add_test(ShaderGLTest ShaderGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
 
     if(NOT MAGNUM_TARGET_GLES2)
-        corrade_add_test(TextureArrayGLTest TextureArrayGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
         corrade_add_test(BufferImageGLTest BufferImageGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
+        corrade_add_test(TextureArrayGLTest TextureArrayGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
+        corrade_add_test(MultisampleTextureGLTest MultisampleTextureGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
     endif()
 
     if(NOT MAGNUM_TARGET_GLES)
         corrade_add_test(BufferTextureGLTest BufferTextureGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
         corrade_add_test(CubeMapTextureArrayGLTest CubeMapTextureArrayGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
-        corrade_add_test(MultisampleTextureGLTest MultisampleTextureGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
         corrade_add_test(RectangleTextureGLTest RectangleTextureGLTest.cpp LIBRARIES ${GL_TEST_LIBRARIES})
     endif()
 endif()