Add GLFW_CONTEXT_DEBUG window hint alias

This adds GLFW_CONTEXT_DEBUG as a preferred alias for
the GLFW_OPENGL_DEBUG_CONTEXT window hint, as debug contexts are
defined for both OpenGL and OpenGL ES.

Related to #1720.

docs/compat.dox

@@ -163,10 +163,9 @@ multisampling anti-aliasing.  Where this extension is unavailable, the
 GLFW uses the `GLX_ARB_create_context` extension when available, even when
 creating OpenGL contexts of version 2.1 and below.  Where this extension is
 unavailable, the `GLFW_CONTEXT_VERSION_MAJOR` and `GLFW_CONTEXT_VERSION_MINOR`
-hints will only be partially supported, the `GLFW_OPENGL_DEBUG_CONTEXT` hint
-will have no effect, and setting the `GLFW_OPENGL_PROFILE` or
-`GLFW_OPENGL_FORWARD_COMPAT` hints to `GLFW_TRUE` will cause @ref
-glfwCreateWindow to fail.
+hints will only be partially supported, the `GLFW_CONTEXT_DEBUG` hint will have
+no effect, and setting the `GLFW_OPENGL_PROFILE` or `GLFW_OPENGL_FORWARD_COMPAT`
+hints to `GLFW_TRUE` will cause @ref glfwCreateWindow to fail.
 
 GLFW uses the `GLX_ARB_create_context_profile` extension to provide support for
 context profiles.  Where this extension is unavailable, setting the
@@ -206,10 +205,9 @@ unavailable, the `GLFW_SAMPLES` hint will have no effect.
 GLFW uses the `WGL_ARB_create_context` extension when available, even when
 creating OpenGL contexts of version 2.1 and below.  Where this extension is
 unavailable, the `GLFW_CONTEXT_VERSION_MAJOR` and `GLFW_CONTEXT_VERSION_MINOR`
-hints will only be partially supported, the `GLFW_OPENGL_DEBUG_CONTEXT` hint
-will have no effect, and setting the `GLFW_OPENGL_PROFILE` or
-`GLFW_OPENGL_FORWARD_COMPAT` hints to `GLFW_TRUE` will cause @ref
-glfwCreateWindow to fail.
+hints will only be partially supported, the `GLFW_CONTEXT_DEBUG` hint will have
+no effect, and setting the `GLFW_OPENGL_PROFILE` or `GLFW_OPENGL_FORWARD_COMPAT`
+hints to `GLFW_TRUE` will cause @ref glfwCreateWindow to fail.
 
 GLFW uses the `WGL_ARB_create_context_profile` extension to provide support for
 context profiles.  Where this extension is unavailable, setting the
@@ -239,13 +237,13 @@ Because of this, on OS X 10.7 and later, the `GLFW_CONTEXT_VERSION_MAJOR` and
 `GLFW_CONTEXT_VERSION_MINOR` hints will cause @ref glfwCreateWindow to fail if
 given version 3.0 or 3.1.  The `GLFW_OPENGL_PROFILE` hint must be set to
 `GLFW_OPENGL_CORE_PROFILE` when creating OpenGL 3.2 and later contexts.  The
-`GLFW_OPENGL_DEBUG_CONTEXT` and `GLFW_CONTEXT_NO_ERROR` hints are ignored.
+`GLFW_CONTEXT_DEBUG` and `GLFW_CONTEXT_NO_ERROR` hints are ignored.
 
 Also, on Mac OS X 10.6 and below, the `GLFW_CONTEXT_VERSION_MAJOR` and
 `GLFW_CONTEXT_VERSION_MINOR` hints will fail if given a version above 2.1,
 setting the `GLFW_OPENGL_PROFILE` or `GLFW_OPENGL_FORWARD_COMPAT` hints to
 a non-default value will cause @ref glfwCreateWindow to fail and the
-`GLFW_OPENGL_DEBUG_CONTEXT` hint is ignored.
+`GLFW_CONTEXT_DEBUG` hint is ignored.
 
 
 @section compat_vulkan Vulkan loader and API

docs/news.dox

@@ -91,6 +91,7 @@ then GLFW will fail to initialize.
  - @ref GLFW_NOT_ALLOWED_CURSOR
  - @ref GLFW_CURSOR_UNAVAILABLE
  - @ref GLFW_WIN32_KEYBOARD_MENU
+ - @ref GLFW_CONTEXT_DEBUG
 
 
 @section news_archive Release notes for earlier versions

docs/window.dox

@@ -405,10 +405,11 @@ version is 3.0 or above.  If OpenGL ES is requested, this hint is ignored.
 Forward-compatibility is described in detail in the
 [OpenGL Reference Manual](https://www.opengl.org/registry/).
 
+@anchor GLFW_CONTEXT_DEBUG_hint
 @anchor GLFW_OPENGL_DEBUG_CONTEXT_hint
-__GLFW_OPENGL_DEBUG_CONTEXT__ specifies whether the context should be created
-in debug mode, which may provide additional error and diagnostic reporting
-functionality.  Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
+__GLFW_CONTEXT_DEBUG__ specifies whether the context should be created in debug
+mode, which may provide additional error and diagnostic reporting functionality.
+Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
 
 @par
 Debug contexts for OpenGL and OpenGL ES are described in detail by the
@@ -545,7 +546,7 @@ GLFW_CONTEXT_VERSION_MINOR    | 0                           | Any valid minor ve
 GLFW_CONTEXT_ROBUSTNESS       | `GLFW_NO_ROBUSTNESS`        | `GLFW_NO_ROBUSTNESS`, `GLFW_NO_RESET_NOTIFICATION` or `GLFW_LOSE_CONTEXT_ON_RESET`
 GLFW_CONTEXT_RELEASE_BEHAVIOR | `GLFW_ANY_RELEASE_BEHAVIOR` | `GLFW_ANY_RELEASE_BEHAVIOR`, `GLFW_RELEASE_BEHAVIOR_FLUSH` or `GLFW_RELEASE_BEHAVIOR_NONE`
 GLFW_OPENGL_FORWARD_COMPAT    | `GLFW_FALSE`                | `GLFW_TRUE` or `GLFW_FALSE`
-GLFW_OPENGL_DEBUG_CONTEXT     | `GLFW_FALSE`                | `GLFW_TRUE` or `GLFW_FALSE`
+GLFW_CONTEXT_DEBUG            | `GLFW_FALSE`                | `GLFW_TRUE` or `GLFW_FALSE`
 GLFW_OPENGL_PROFILE           | `GLFW_OPENGL_ANY_PROFILE`   | `GLFW_OPENGL_ANY_PROFILE`, `GLFW_OPENGL_COMPAT_PROFILE` or `GLFW_OPENGL_CORE_PROFILE`
 GLFW_WIN32_KEYBOARD_MENU      | `GLFW_FALSE`                | `GLFW_TRUE` or `GLFW_FALSE`
 GLFW_COCOA_RETINA_FRAMEBUFFER | `GLFW_TRUE`                 | `GLFW_TRUE` or `GLFW_FALSE`
@@ -1338,8 +1339,9 @@ of the GLFW header.
 __GLFW_OPENGL_FORWARD_COMPAT__ is `GLFW_TRUE` if the window's context is an
 OpenGL forward-compatible one, or `GLFW_FALSE` otherwise.
 
+@anchor GLFW_CONTEXT_DEBUG_attrib
 @anchor GLFW_OPENGL_DEBUG_CONTEXT_attrib
-__GLFW_OPENGL_DEBUG_CONTEXT__ is `GLFW_TRUE` if the window's context is in debug
+__GLFW_CONTEXT_DEBUG__ is `GLFW_TRUE` if the window's context is in debug
 mode, or `GLFW_FALSE` otherwise.
 
 @anchor GLFW_OPENGL_PROFILE_attrib

include/GLFW/glfw3.h

@@ -1014,10 +1014,15 @@ extern "C" {
 #define GLFW_OPENGL_FORWARD_COMPAT  0x00022006
 /*! @brief Debug mode context hint and attribute.
  *
- *  Debug mode context [hint](@ref GLFW_OPENGL_DEBUG_CONTEXT_hint) and
- *  [attribute](@ref GLFW_OPENGL_DEBUG_CONTEXT_attrib).
+ *  Debug mode context [hint](@ref GLFW_CONTEXT_DEBUG_hint) and
+ *  [attribute](@ref GLFW_CONTEXT_DEBUG_attrib).
  */
-#define GLFW_OPENGL_DEBUG_CONTEXT   0x00022007
+#define GLFW_CONTEXT_DEBUG          0x00022007
+/*! @brief Legacy name for compatibility.
+ *
+ *  This is an alias for compatibility with earlier versions.
+ */
+#define GLFW_OPENGL_DEBUG_CONTEXT   GLFW_CONTEXT_DEBUG
 /*! @brief OpenGL profile hint and attribute.
  *
  *  OpenGL profile [hint](@ref GLFW_OPENGL_PROFILE_hint) and

src/window.c

@@ -396,7 +396,7 @@ GLFWAPI void glfwWindowHint(int hint, int value)
         case GLFW_OPENGL_FORWARD_COMPAT:
             _glfw.hints.context.forward = value ? GLFW_TRUE : GLFW_FALSE;
             return;
-        case GLFW_OPENGL_DEBUG_CONTEXT:
+        case GLFW_CONTEXT_DEBUG:
             _glfw.hints.context.debug = value ? GLFW_TRUE : GLFW_FALSE;
             return;
         case GLFW_CONTEXT_NO_ERROR:
@@ -846,7 +846,7 @@ GLFWAPI int glfwGetWindowAttrib(GLFWwindow* handle, int attrib)
             return window->context.robustness;
         case GLFW_OPENGL_FORWARD_COMPAT:
             return window->context.forward;
-        case GLFW_OPENGL_DEBUG_CONTEXT:
+        case GLFW_CONTEXT_DEBUG:
             return window->context.debug;
         case GLFW_OPENGL_PROFILE:
             return window->context.profile;

tests/glfwinfo.c

@@ -422,7 +422,7 @@ int main(int argc, char** argv)
                 break;
             case 'd':
             case DEBUG_CONTEXT:
-                glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
+                glfwWindowHint(GLFW_CONTEXT_DEBUG, GLFW_TRUE);
                 break;
             case 'f':
             case FORWARD:
@@ -639,7 +639,7 @@ int main(int argc, char** argv)
 
             if (glfwGetWindowAttrib(window, GLFW_OPENGL_FORWARD_COMPAT))
                 printf(" forward-compatible");
-            if (glfwGetWindowAttrib(window, GLFW_OPENGL_DEBUG_CONTEXT))
+            if (glfwGetWindowAttrib(window, GLFW_CONTEXT_DEBUG))
                 printf(" debug");
             if (glfwGetWindowAttrib(window, GLFW_CONTEXT_ROBUSTNESS) == GLFW_LOSE_CONTEXT_ON_RESET)
                 printf(" robustness");