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Add GLFW_CONTEXT_NO_ERROR window hint

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This adds support for the GL_KHR_no_error extension.
This commit is contained in:
Camilla Berglund 2015-08-10 12:46:14 +02:00
parent 962497bdc9
commit 7be8209d14
12 changed files with 47 additions and 2 deletions
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1
README.md
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@ -67,6 +67,7 @@ used by the tests and examples and are not required to build the library.
- Added `glfwSetWindowSizeLimits` and `glfwSetWindowAspectRatio` for setting
absolute and relative window size limits
- Added `GLFW_NO_API` for creating window without contexts
- Added `GLFW_CONTEXT_NO_ERROR` context hint for `GL_KHR_no_error` support
- Added `GLFW_TRUE` and `GLFW_FALSE` as client API independent boolean values
- Removed dependency on external OpenGL or OpenGL ES headers
- [Cocoa] Removed support for OS X 10.6

1
docs/news.dox
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@ -4,6 +4,7 @@
@section news_32 New features in 3.2
@subsection news_32_sizelimits Window size limit support
GLFW now supports setting both absolute and relative window size limits with

9
docs/window.dox
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@ -293,6 +293,15 @@ Context release behaviors are described in detail by the
[GL_KHR_context_flush_control](https://www.opengl.org/registry/specs/KHR/context_flush_control.txt)
extension.
`GLFW_CONTEXT_NO_ERROR` specifies whether errors should be generated by the
context. If enabled, situations that would have generated errors instead cause
undefined behavior.
@par
The no error mode for OpenGL and OpenGL ES is described in detail by the
[GL_KHR_no_error](https://www.opengl.org/registry/specs/KHR/no_error.txt)
extension.
@subsubsection window_hints_values Supported and default values

1
include/GLFW/glfw3.h
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@ -658,6 +658,7 @@ extern "C" {
#define GLFW_OPENGL_DEBUG_CONTEXT 0x00022007
#define GLFW_OPENGL_PROFILE 0x00022008
#define GLFW_CONTEXT_RELEASE_BEHAVIOR 0x00022009
#define GLFW_CONTEXT_NO_ERROR 0x0002200A
#define GLFW_NO_API 0
#define GLFW_OPENGL_API 0x00030001

3
src/context.c
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@ -403,6 +403,9 @@ GLFWbool _glfwRefreshContextAttribs(const _GLFWctxconfig* ctxconfig)
// debug contexts
window->context.debug = GLFW_TRUE;
}
if (flags & GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR)
window->context.noerror = GLFW_TRUE;
}
// Read back OpenGL context profile (OpenGL 3.2 and above)

8
src/egl_context.c
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@ -264,6 +264,8 @@ int _glfwInitContextAPI(void)
_glfw.egl.KHR_create_context =
_glfwPlatformExtensionSupported("EGL_KHR_create_context");
_glfw.egl.KHR_create_context_no_error =
_glfwPlatformExtensionSupported("EGL_KHR_create_context_no_error");
return GLFW_TRUE;
}
@ -345,6 +347,12 @@ int _glfwCreateContext(_GLFWwindow* window,
mask |= EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
mask |= EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR;
if (_glfw.egl.KHR_create_context_no_error)
{
if (ctxconfig->noerror)
flags |= EGL_CONTEXT_OPENGL_NO_ERROR_KHR;
}
}
if (ctxconfig->debug)

2
src/egl_context.h
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@ -88,6 +88,7 @@
#define EGL_CONTEXT_MINOR_VERSION_KHR 0x30fb
#define EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR 0x30FD
#define EGL_CONTEXT_FLAGS_KHR 0x30fc
#define EGL_CONTEXT_OPENGL_NO_ERROR_KHR 0x31b3
#define EGL_NATIVE_VISUAL_ID 0x302e
#define EGL_NO_SURFACE ((EGLSurface) 0)
#define EGL_NO_DISPLAY ((EGLDisplay) 0)
@ -160,6 +161,7 @@ typedef struct _GLFWlibraryEGL
EGLint major, minor;
GLFWbool KHR_create_context;
GLFWbool KHR_create_context_no_error;
void* handle;

2
src/glx_context.c
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@ -380,6 +380,8 @@ int _glfwCreateContext(_GLFWwindow* window,
if (ctxconfig->debug)
flags |= GLX_CONTEXT_DEBUG_BIT_ARB;
if (ctxconfig->noerror)
flags |= GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR;
if (ctxconfig->robustness)
{

4
src/internal.h
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@ -65,6 +65,7 @@
#define GL_NO_RESET_NOTIFICATION_ARB 0x8261
#define GL_CONTEXT_RELEASE_BEHAVIOR 0x82fb
#define GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH 0x82fc
#define GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR 0x00000008
typedef int GLint;
typedef unsigned int GLuint;
@ -195,6 +196,7 @@ struct _GLFWctxconfig
int minor;
GLFWbool forward;
GLFWbool debug;
GLFWbool noerror;
int profile;
int robustness;
int release;
@ -262,7 +264,7 @@ struct _GLFWwindow
struct {
int api;
int major, minor, revision;
GLFWbool forward, debug;
GLFWbool forward, debug, noerror;
int profile;
int robustness;
int release;

2
src/wgl_context.c
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@ -382,6 +382,8 @@ int _glfwCreateContext(_GLFWwindow* window,
if (ctxconfig->debug)
flags |= WGL_CONTEXT_DEBUG_BIT_ARB;
if (ctxconfig->noerror)
flags |= GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR;
if (ctxconfig->robustness)
{

5
src/window.c
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@ -357,6 +357,9 @@ GLFWAPI void glfwWindowHint(int target, int hint)
case GLFW_OPENGL_DEBUG_CONTEXT:
_glfw.hints.context.debug = hint ? GLFW_TRUE : GLFW_FALSE;
break;
case GLFW_CONTEXT_NO_ERROR:
_glfw.hints.context.noerror = hint ? GLFW_TRUE : GLFW_FALSE;
break;
case GLFW_OPENGL_PROFILE:
_glfw.hints.context.profile = hint;
break;
@ -629,6 +632,8 @@ GLFWAPI int glfwGetWindowAttrib(GLFWwindow* handle, int attrib)
return window->context.profile;
case GLFW_CONTEXT_RELEASE_BEHAVIOR:
return window->context.release;
case GLFW_CONTEXT_NO_ERROR:
return window->context.noerror;
}
_glfwInputError(GLFW_INVALID_ENUM, "Invalid window attribute");

11
tests/glfwinfo.c
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@ -88,6 +88,7 @@ static void usage(void)
printf(" --stereo request stereo rendering\n");
printf(" --srgb request an sRGB capable framebuffer\n");
printf(" --singlebuffer request single-buffering\n");
printf(" --no-error request a context that does not emit errors\n");
}
static void error_callback(int error, const char* description)
@ -226,7 +227,7 @@ int main(int argc, char** argv)
MAJOR, MINOR, PROFILE, ROBUSTNESS, VERSION,
REDBITS, GREENBITS, BLUEBITS, ALPHABITS, DEPTHBITS, STENCILBITS,
ACCUMREDBITS, ACCUMGREENBITS, ACCUMBLUEBITS, ACCUMALPHABITS,
AUXBUFFERS, SAMPLES, STEREO, SRGB, SINGLEBUFFER };
AUXBUFFERS, SAMPLES, STEREO, SRGB, SINGLEBUFFER, NOERROR };
const struct option options[] =
{
{ "behavior", 1, NULL, BEHAVIOR },
@ -255,6 +256,7 @@ int main(int argc, char** argv)
{ "stereo", 0, NULL, STEREO },
{ "srgb", 0, NULL, SRGB },
{ "singlebuffer", 0, NULL, SINGLEBUFFER },
{ "no-error", 0, NULL, NOERROR },
{ NULL, 0, NULL, 0 }
};
@ -447,6 +449,9 @@ int main(int argc, char** argv)
case SINGLEBUFFER:
glfwWindowHint(GLFW_DOUBLEBUFFER, GLFW_FALSE);
break;
case NOERROR:
glfwWindowHint(GLFW_CONTEXT_NO_ERROR, GLFW_TRUE);
break;
default:
usage();
exit(EXIT_FAILURE);
@ -500,6 +505,8 @@ int main(int argc, char** argv)
printf(" debug");
if (flags & GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB)
printf(" robustness");
if (flags & 8/*GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR*/)
printf(" no-error");
putchar('\n');
printf("%s context flags parsed by GLFW:", get_api_name(api));
@ -510,6 +517,8 @@ int main(int argc, char** argv)
printf(" debug");
if (glfwGetWindowAttrib(window, GLFW_CONTEXT_ROBUSTNESS) == GLFW_LOSE_CONTEXT_ON_RESET)
printf(" robustness");
if (glfwGetWindowAttrib(window, GLFW_CONTEXT_NO_ERROR))
printf(" no-error");
putchar('\n');
}