Doc: fixed a few issues with OpenGL ES extensions.

src/AbstractImage.h

@@ -111,9 +111,9 @@ class MAGNUM_EXPORT AbstractImage {
 
             /**
              * Floating-point BGRA.
-             * @requires_es_extension %Extension @es_extension{EXT,read_format_bgra},
-             *      for framebuffer reading, extension @es_extension{APPLE,texture_format_BGRA8888}
-             *      for texture data.
+             * @requires_es_extension %Extension @es_extension{EXT,read_format_bgra}
+             *      for framebuffer reading, extension @es_extension{APPLE,texture_format_BGRA8888} or
+             *      @es_extension{EXT,texture_format_BGRA8888} for texture data.
              */
             #ifndef MAGNUM_TARGET_GLES
             BGRA = GL_BGRA,
@@ -268,7 +268,7 @@ class MAGNUM_EXPORT AbstractImage {
             /**
              * Each component half float. For framebuffer reading only.
              * @requires_gl30 %Extension @extension{NV,half_float} / @extension{ARB,half_float_pixel}
-             * @requires_gles30 %Extension @es_extension{OES,texture_float},
+             * @requires_gles30 %Extension @es_extension2{OES,texture_half_float,OES_texture_float},
              *      for texture data only.
              */
             #ifndef MAGNUM_TARGET_GLES2

src/AbstractTexture.h

@@ -72,7 +72,17 @@ class MAGNUM_EXPORT AbstractTexture {
          */
         enum class Filter: GLint {
             NearestNeighbor = GL_NEAREST,   /**< Nearest neighbor filtering */
-            LinearInterpolation = GL_LINEAR /**< Linear interpolation filtering */
+
+            /**
+             * Linear interpolation filtering.
+             * @requires_gles30 %Extension @es_extension{OES,texture_float_linear} /
+             *      @es_extension2{OES,texture_half_float_linear,OES_texture_float_linear}
+             *      for linear interpolation of textures with
+             *      @ref Magnum::AbstractTexture::InternalFormat "InternalFormat::HalfFloat"
+             *      / @ref Magnum::AbstractTexture::InternalFormat "InternalFormat::Float"
+             *      in OpenGL ES 2.0.
+             */
+            LinearInterpolation = GL_LINEAR
         };
 
         /**
@@ -91,6 +101,12 @@ class MAGNUM_EXPORT AbstractTexture {
             /**
              * Linear interpolation of nearest mip levels. **Unavailable on
              * rectangle textures.**
+             * @requires_gles30 %Extension @es_extension{OES,texture_float_linear} /
+             *      @es_extension2{OES,texture_half_float_linear,OES_texture_float_linear}
+             *      for linear interpolation of textures with
+             *      @ref Magnum::AbstractTexture::InternalFormat "InternalFormat::HalfFloat"
+             *      / @ref Magnum::AbstractTexture::InternalFormat "InternalFormat::Float"
+             *      in OpenGL ES 2.0.
              */
             LinearInterpolation = GL_NEAREST_MIPMAP_LINEAR & ~GL_NEAREST
         };
@@ -622,6 +638,7 @@ class MAGNUM_EXPORT AbstractTexture {
             /**
              * RGB, each component normalized unsigned 10bit.
              * @requires_es_extension %Extension @es_extension{OES,required_internalformat}
+             *      and @es_extension{EXT,texture_type_2_10_10_10_REV}
              */
             #ifndef MAGNUM_TARGET_GLES
             RGB10 = GL_RGB10,
@@ -904,7 +921,7 @@ class MAGNUM_EXPORT AbstractTexture {
             /**
              * Depth component, 32bit.
              * @requires_es_extension %Extension @es_extension{OES,required_internalformat},
-             *      @es_extension{OES,depth_texture} and @es_extension{OES,depth24}
+             *      @es_extension{OES,depth_texture} and @es_extension{OES,depth32}
              */
             #ifndef MAGNUM_TARGET_GLES2
             DepthComponent32 = GL_DEPTH_COMPONENT32,

src/DefaultFramebuffer.h

@@ -186,7 +186,7 @@ class MAGNUM_EXPORT DefaultFramebuffer: public AbstractFramebuffer {
 
             /**
              * Read from front framebuffer.
-             * @requires_es_extension %Extension @es_extension2{NV,read_buffer,GL_NV_read_buffer}
+             * @requires_es_extension %Extension @es_extension2{NV,read_buffer_front,GL_NV_read_buffer}
              */
             Front = GL_FRONT
 

src/IndexedMesh.h

@@ -62,7 +62,8 @@ From user point-of-view the operation is the same as for
 
 @section IndexedMesh-performance-optimization Performance optimizations
 
-If @extension{APPLE,vertex_array_object} is supported, next to
+If @extension{APPLE,vertex_array_object}, OpenGL ES 3.0 or
+@es_extension{OES,vertex_array_object} on OpenGL ES 2.0 is supported, next to
 @ref Mesh-performance-optimization "optimizations in Mesh itself" the index
 buffer is bound on object construction instead of binding it in every draw()
 call.

src/Mesh.h

@@ -102,10 +102,11 @@ for more infromation) and call Mesh::draw().
 
 @section Mesh-performance-optimization Performance optimizations
 
-If @extension{APPLE,vertex_array_object} is supported, VAOs are used instead
-of binding the buffers and specifying vertex attribute pointers in each
-draw() call. The engine tracks currently bound VAO to avoid unnecessary calls
-to @fn_gl{BindVertexArray}.
+If @extension{APPLE,vertex_array_object}, OpenGL ES 3.0 or
+@es_extension{OES,vertex_array_object} on OpenGL ES 2.0 is supported, VAOs are
+used instead of binding the buffers and specifying vertex attribute pointers
+in each draw() call. The engine tracks currently bound VAO to avoid
+unnecessary calls to @fn_gl{BindVertexArray}.
 
 If extension @extension{EXT,direct_state_access} and VAOs are available,
 DSA functions are used for specifying attribute locations to avoid unnecessary
@@ -113,6 +114,7 @@ calls to @fn_gl{BindBuffer} and @fn_gl{BindVertexArray}. See documentation of
 addVertexBuffer(), addInterleavedVertexBuffer(), addVertexBufferStride() for
 more information.
 
+@see IndexedMesh
 @todo Support for indirect draw buffer (OpenGL 4.0, @extension{ARB,draw_indirect})
 @todo Redo in a way that allows glMultiDrawArrays, glDrawArraysInstanced etc.
 @todo Allow unbinding all vertex buffers with some function (not as side effect),

src/Renderbuffer.h

@@ -117,7 +117,7 @@ class MAGNUM_EXPORT Renderbuffer {
             /**
              * RGBA, each component normalized unsigned byte.
              * @requires_gles30 %Extension @es_extension{ARM,rgba8} or
-             *      @es_extension{OES,required_internalformat} and @es_extension{OES,rgb8_rgba8}
+             *      @es_extension{OES,rgb8_rgba8}
              */
             #ifndef MAGNUM_TARGET_GLES2
             RGBA8 = GL_RGBA8,