Implement EXT_sRGB_write_control ES extension.

doc/opengl-support.dox

@@ -355,6 +355,7 @@ Extension                                   | Status
 @es_extension{EXT,robustness}               | done
 @es_extension{EXT,disjoint_timer_query}     | only time elapsed query
 @es_extension{EXT,texture_sRGB_decode}      | done
+@es_extension{EXT,sRGB_write_control}       | done
 @es_extension{EXT,shader_integer_mix}       | done (shading language only)
 @extension3{KHR,texture_compression_astc_ldr,texture_compression_astc_hdr} | |
 @extension{KHR,texture_compression_astc_hdr} | |

src/Magnum/Context.cpp

@@ -252,6 +252,7 @@ const std::vector<Extension>& Extension::extensions(Version version) {
         _extension(GL,EXT,debug_marker),
         _extension(GL,EXT,disjoint_timer_query),
         _extension(GL,EXT,texture_sRGB_decode),
+        _extension(GL,EXT,sRGB_write_control),
         _extension(GL,EXT,separate_shader_objects),
         _extension(GL,EXT,multisampled_render_to_texture),
         _extension(GL,EXT,robustness),

src/Magnum/Extensions.h

@@ -323,6 +323,7 @@ namespace GL {
         _extension(GL,EXT,draw_buffers,             GLES200, GLES300) // #151
         #endif
         _extension(GL,EXT,texture_sRGB_decode,      GLES200,    None) // #152
+        _extension(GL,EXT,sRGB_write_control,       GLES200,    None) // #153
         #ifdef MAGNUM_TARGET_GLES2
         _extension(GL,EXT,instanced_arrays,         GLES200, GLES300) // #156
         _extension(GL,EXT,draw_instanced,           GLES200, GLES300) // #157

src/Magnum/Renderer.h

@@ -140,15 +140,24 @@ class MAGNUM_EXPORT Renderer {
              */
             FaceCulling = GL_CULL_FACE,
 
-            #ifndef MAGNUM_TARGET_GLES
+            #ifndef MAGNUM_TARGET_WEBGL
             /**
              * sRGB encoding of the default framebuffer
              * @requires_gl30 Extension @extension{ARB,framebuffer_sRGB}
-             * @requires_gl sRGB encoding of the default framebuffer is
-             *      implementation-defined in OpenGL ES and WebGL.
+             * @requires_es_extension @es_extension{EXT,sRGB_write_control}.
+             *      Otherwise sRGB encoding of the default framebuffer is
+             *      implementation-defined.
+             * @requires_gles sRGB encoding of the default framebuffer is
+             *      implementation-defined in WebGL.
              */
+            #ifndef MAGNUM_TARGET_GLES
             FramebufferSRGB = GL_FRAMEBUFFER_SRGB,
+            #else
+            FramebufferSRGB = GL_FRAMEBUFFER_SRGB_EXT,
+            #endif
+            #endif
 
+            #ifndef MAGNUM_TARGET_GLES
             /**
              * Logical operation
              * @see @ref setLogicOperation()
@@ -156,9 +165,7 @@ class MAGNUM_EXPORT Renderer {
              *      available in OpenGL ES and WebGL.
              */
             LogicOperation = GL_COLOR_LOGIC_OP,
-            #endif
 
-            #ifndef MAGNUM_TARGET_GLES
             /**
              * Multisampling. Enabled by default. Note that the actual presence
              * of this feature in default framebuffer depends on context

src/MagnumExternal/OpenGL/GLES2/extensions.txt

@@ -56,6 +56,7 @@ extension EXT_debug_label                       optional
 extension EXT_debug_marker                      optional
 extension EXT_disjoint_timer_query              optional
 extension EXT_texture_sRGB_decode               optional
+extension EXT_sRGB_write_control                optional
 extension EXT_separate_shader_objects           optional
 extension EXT_multisampled_render_to_texture    optional
 extension EXT_robustness                        optional

src/MagnumExternal/OpenGL/GLES2/flextGL.h

@@ -759,6 +759,10 @@ typedef khronos_ssize_t GLsizeiptr;
 #define GL_DECODE_EXT 0x8A49
 #define GL_SKIP_DECODE_EXT 0x8A4A
 
+/* GL_EXT_sRGB_write_control */
+
+#define GL_FRAMEBUFFER_SRGB_EXT 0x8DB9
+
 /* GL_EXT_separate_shader_objects */
 
 #define GL_ACTIVE_PROGRAM_EXT 0x8259
@@ -1313,6 +1317,9 @@ GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryObjectui64vEXT)(GLuint, GLenu
 /* GL_EXT_texture_sRGB_decode */
 
 
+/* GL_EXT_sRGB_write_control */
+
+
 /* GL_EXT_separate_shader_objects */
 
 GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglUseShaderProgramEXT)(GLenum, GLuint);

src/MagnumExternal/OpenGL/GLES2/flextGLPlatform.cpp

@@ -170,6 +170,8 @@ void flextGLInit() {
 
     /* GL_EXT_texture_sRGB_decode */
 
+    /* GL_EXT_sRGB_write_control */
+
     /* GL_EXT_separate_shader_objects */
     flextglUseShaderProgramEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint)>(loader.load("glUseShaderProgramEXT"));
     flextglActiveProgramEXT = reinterpret_cast<void(APIENTRY*)(GLuint)>(loader.load("glActiveProgramEXT"));

src/MagnumExternal/OpenGL/GLES3/extensions.txt

@@ -11,6 +11,7 @@ extension EXT_debug_label                       optional
 extension EXT_debug_marker                      optional
 extension EXT_disjoint_timer_query              optional
 extension EXT_texture_sRGB_decode               optional
+extension EXT_sRGB_write_control                optional
 extension EXT_separate_shader_objects           optional
 extension EXT_multisampled_render_to_texture    optional
 extension EXT_robustness                        optional

src/MagnumExternal/OpenGL/GLES3/flextGL.h

@@ -943,6 +943,10 @@ typedef khronos_ssize_t GLsizeiptr;
 #define GL_DECODE_EXT 0x8A49
 #define GL_SKIP_DECODE_EXT 0x8A4A
 
+/* GL_EXT_sRGB_write_control */
+
+#define GL_FRAMEBUFFER_SRGB_EXT 0x8DB9
+
 /* GL_EXT_separate_shader_objects */
 
 #define GL_ACTIVE_PROGRAM_EXT 0x8259
@@ -1535,6 +1539,9 @@ GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryObjectui64vEXT)(GLuint, GLenu
 /* GL_EXT_texture_sRGB_decode */
 
 
+/* GL_EXT_sRGB_write_control */
+
+
 /* GL_EXT_separate_shader_objects */
 
 GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglUseShaderProgramEXT)(GLenum, GLuint);

src/MagnumExternal/OpenGL/GLES3/flextGLPlatform.cpp

@@ -114,6 +114,8 @@ void flextGLInit() {
 
     /* GL_EXT_texture_sRGB_decode */
 
+    /* GL_EXT_sRGB_write_control */
+
     /* GL_EXT_separate_shader_objects */
     flextglUseShaderProgramEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint)>(loader.load("glUseShaderProgramEXT"));
     flextglActiveProgramEXT = reinterpret_cast<void(APIENTRY*)(GLuint)>(loader.load("glActiveProgramEXT"));