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EGL: Add support for EGL_ANGLE_platform_angle

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This adds basic support for selecting the platform type (rendering
backend) when running on ANGLE.

Related to #1380.
This commit is contained in:
Camilla Löwy
2020-06-25 18:22:08 +02:00
parent e6a6a99813
commit 0dea8a4441
13 changed files with 224 additions and 16 deletions
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28
src/cocoa_window.m
View File

@@ -1721,8 +1721,34 @@ const char* _glfwPlatformGetClipboardString(void)
} // autoreleasepool
}
EGLenum _glfwPlatformGetEGLPlatform(void)
EGLenum _glfwPlatformGetEGLPlatform(EGLint** attribs)
{
if (_glfw.egl.ANGLE_platform_angle)
{
int type = 0;
if (_glfw.egl.ANGLE_platform_angle_opengl)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGL)
type = EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE;
}
if (_glfw.egl.ANGLE_platform_angle_metal)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_METAL)
type = EGL_PLATFORM_ANGLE_TYPE_METAL_ANGLE;
}
if (type)
{
*attribs = calloc(3, sizeof(EGLint));
(*attribs)[0] = EGL_PLATFORM_ANGLE_TYPE_ANGLE;
(*attribs)[1] = type;
(*attribs)[2] = EGL_NONE;
return EGL_PLATFORM_ANGLE_ANGLE;
}
}
return 0;
}

21
src/egl_context.c
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@@ -303,6 +303,7 @@ static void destroyContextEGL(_GLFWwindow* window)
GLFWbool _glfwInitEGL(void)
{
int i;
EGLint* attribs = NULL;
const char* extensions;
const char* sonames[] =
{
@@ -408,6 +409,16 @@ GLFWbool _glfwInitEGL(void)
_glfwStringInExtensionString("EGL_EXT_platform_x11", extensions);
_glfw.egl.EXT_platform_wayland =
_glfwStringInExtensionString("EGL_EXT_platform_wayland", extensions);
_glfw.egl.ANGLE_platform_angle =
_glfwStringInExtensionString("EGL_ANGLE_platform_angle", extensions);
_glfw.egl.ANGLE_platform_angle_opengl =
_glfwStringInExtensionString("EGL_ANGLE_platform_angle_opengl", extensions);
_glfw.egl.ANGLE_platform_angle_d3d =
_glfwStringInExtensionString("EGL_ANGLE_platform_angle_d3d", extensions);
_glfw.egl.ANGLE_platform_angle_vulkan =
_glfwStringInExtensionString("EGL_ANGLE_platform_angle_vulkan", extensions);
_glfw.egl.ANGLE_platform_angle_metal =
_glfwStringInExtensionString("EGL_ANGLE_platform_angle_metal", extensions);
}
if (_glfw.egl.EXT_platform_base)
@@ -418,17 +429,19 @@ GLFWbool _glfwInitEGL(void)
eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
}
_glfw.egl.platform = _glfwPlatformGetEGLPlatform();
_glfw.egl.platform = _glfwPlatformGetEGLPlatform(&attribs);
if (_glfw.egl.platform)
{
_glfw.egl.display =
eglGetPlatformDisplayEXT(_glfw.egl.platform,
_glfwPlatformGetEGLNativeDisplay(),
NULL);
attribs);
}
else
_glfw.egl.display = eglGetDisplay(_glfwPlatformGetEGLNativeDisplay());
free(attribs);
if (_glfw.egl.display == EGL_NO_DISPLAY)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
@@ -633,7 +646,9 @@ GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
setAttrib(EGL_NONE, EGL_NONE);
native = _glfwPlatformGetEGLNativeWindow(window);
if (_glfw.egl.platform)
// HACK: ANGLE does not implement eglCreatePlatformWindowSurfaceEXT
// despite reporting EGL_EXT_platform_base
if (_glfw.egl.platform && _glfw.egl.platform != EGL_PLATFORM_ANGLE_ANGLE)
{
window->context.egl.surface =
eglCreatePlatformWindowSurfaceEXT(_glfw.egl.display, config, native, attribs);

14
src/egl_context.h
View File

@@ -92,6 +92,15 @@
#define EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR 0x2098
#define EGL_PLATFORM_X11_EXT 0x31d5
#define EGL_PLATFORM_WAYLAND_EXT 0x31d8
#define EGL_PLATFORM_ANGLE_ANGLE 0x3202
#define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3203
#define EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x320d
#define EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE 0x320e
#define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3207
#define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3208
#define EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE 0x3450
#define EGL_PLATFORM_ANGLE_TYPE_METAL_ANGLE 0x3489
#define EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE 0x348f
typedef int EGLint;
typedef unsigned int EGLBoolean;
@@ -173,6 +182,11 @@ typedef struct _GLFWlibraryEGL
GLFWbool EXT_platform_base;
GLFWbool EXT_platform_x11;
GLFWbool EXT_platform_wayland;
GLFWbool ANGLE_platform_angle;
GLFWbool ANGLE_platform_angle_opengl;
GLFWbool ANGLE_platform_angle_d3d;
GLFWbool ANGLE_platform_angle_vulkan;
GLFWbool ANGLE_platform_angle_metal;
void* handle;

4
src/init.c
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@@ -53,6 +53,7 @@ static GLFWerrorfun _glfwErrorCallback;
static _GLFWinitconfig _glfwInitHints =
{
GLFW_TRUE, // hat buttons
GLFW_ANGLE_PLATFORM_TYPE_NONE, // ANGLE backend
{
GLFW_TRUE, // macOS menu bar
GLFW_TRUE // macOS bundle chdir
@@ -287,6 +288,9 @@ GLFWAPI void glfwInitHint(int hint, int value)
case GLFW_JOYSTICK_HAT_BUTTONS:
_glfwInitHints.hatButtons = value;
return;
case GLFW_ANGLE_PLATFORM_TYPE:
_glfwInitHints.angleType = value;
return;
case GLFW_COCOA_CHDIR_RESOURCES:
_glfwInitHints.ns.chdir = value;
return;

3
src/internal.h
View File

@@ -243,6 +243,7 @@ struct _GLFWerror
struct _GLFWinitconfig
{
GLFWbool hatButtons;
int angleType;
struct {
GLFWbool menubar;
GLFWbool chdir;
@@ -684,7 +685,7 @@ void _glfwPlatformWaitEvents(void);
void _glfwPlatformWaitEventsTimeout(double timeout);
void _glfwPlatformPostEmptyEvent(void);
EGLenum _glfwPlatformGetEGLPlatform(void);
EGLenum _glfwPlatformGetEGLPlatform(EGLint** attribs);
EGLNativeDisplayType _glfwPlatformGetEGLNativeDisplay(void);
EGLNativeWindowType _glfwPlatformGetEGLNativeWindow(_GLFWwindow* window);

38
src/win32_window.c
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@@ -2186,8 +2186,44 @@ const char* _glfwPlatformGetClipboardString(void)
return _glfw.win32.clipboardString;
}
EGLenum _glfwPlatformGetEGLPlatform(void)
EGLenum _glfwPlatformGetEGLPlatform(EGLint** attribs)
{
if (_glfw.egl.ANGLE_platform_angle)
{
int type = 0;
if (_glfw.egl.ANGLE_platform_angle_opengl)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGL)
type = EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE;
else if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGLES)
type = EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE;
}
if (_glfw.egl.ANGLE_platform_angle_d3d)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_D3D9)
type = EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE;
else if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_D3D11)
type = EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE;
}
if (_glfw.egl.ANGLE_platform_angle_vulkan)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_VULKAN)
type = EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE;
}
if (type)
{
*attribs = calloc(3, sizeof(EGLint));
(*attribs)[0] = EGL_PLATFORM_ANGLE_TYPE_ANGLE;
(*attribs)[1] = type;
(*attribs)[2] = EGL_NONE;
return EGL_PLATFORM_ANGLE_ANGLE;
}
}
return 0;
}

2
src/wl_window.c
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@@ -1684,7 +1684,7 @@ const char* _glfwPlatformGetClipboardString(void)
return _glfw.wl.clipboardString;
}
EGLenum _glfwPlatformGetEGLPlatform(void)
EGLenum _glfwPlatformGetEGLPlatform(EGLint** attribs)
{
if (_glfw.egl.EXT_platform_base && _glfw.egl.EXT_platform_wayland)
return EGL_PLATFORM_WAYLAND_EXT;

34
src/x11_window.c
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@@ -3048,12 +3048,40 @@ const char* _glfwPlatformGetClipboardString(void)
return getSelectionString(_glfw.x11.CLIPBOARD);
}
EGLenum _glfwPlatformGetEGLPlatform(void)
EGLenum _glfwPlatformGetEGLPlatform(EGLint** attribs)
{
if (_glfw.egl.ANGLE_platform_angle)
{
int type = 0;
if (_glfw.egl.ANGLE_platform_angle_opengl)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGL)
type = EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE;
}
if (_glfw.egl.ANGLE_platform_angle_vulkan)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_VULKAN)
type = EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE;
}
if (type)
{
*attribs = calloc(5, sizeof(EGLint));
(*attribs)[0] = EGL_PLATFORM_ANGLE_TYPE_ANGLE;
(*attribs)[1] = type;
(*attribs)[2] = EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE;
(*attribs)[3] = EGL_PLATFORM_X11_EXT;
(*attribs)[4] = EGL_NONE;
return EGL_PLATFORM_ANGLE_ANGLE;
}
}
if (_glfw.egl.EXT_platform_base && _glfw.egl.EXT_platform_x11)
return EGL_PLATFORM_X11_EXT;
else
return 0;
return 0;
}
EGLNativeDisplayType _glfwPlatformGetEGLNativeDisplay(void)