Add EGLDevice backend to GLFW

This adds interface to graphics application to create EGLDisplay
directly over GPU device as enabled by EGLDevice extensions

Fixes #786.
This commit is contained in:
Kamal 2016-06-15 15:53:00 +05:30 committed by Camilla Löwy
parent f4fb25b63d
commit 5b1a187f71
10 changed files with 1034 additions and 0 deletions

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@ -163,6 +163,9 @@ elseif (GLFW_USE_MIR)
elseif (GLFW_USE_OSMESA)
set(_GLFW_OSMESA 1)
message(STATUS "Using OSMesa for headless context creation")
elseif (GLFW_USE_EGLDEVICE)
set(_GLFW_EGLDEVICE 1)
message(STATUS "Using EGLDevice for window creation")
elseif (WIN32)
set(_GLFW_WIN32 1)
message(STATUS "Using Win32 for window creation")
@ -291,6 +294,16 @@ if (_GLFW_WAYLAND)
list(APPEND glfw_LIBRARIES "${XKBCOMMON_LIBRARY}")
endif()
#--------------------------------------------------------------------
# Use EGLDevice for window creation
#--------------------------------------------------------------------
if (_GLFW_EGLDEVICE)
list(APPEND glfw_LIBRARIES "-ldrm")
list(APPEND glfw_LIBRARIES "-lpthread")
endif()
#--------------------------------------------------------------------
# Use Mir for window creation
#--------------------------------------------------------------------

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@ -47,6 +47,12 @@ elseif (_GLFW_WAYLAND)
PROTOCOL
"${WAYLAND_PROTOCOLS_PKGDATADIR}/unstable/pointer-constraints/pointer-constraints-unstable-v1.xml"
BASENAME pointer-constraints-unstable-v1)
elseif(_GLFW_EGLDEVICE)
set(glfw_HEADERS ${common_HEADERS} egldevice_platform.h linux_joystick.h
posix_time.h posix_tls.h xkb_unicode.h egl_context.h)
set(glfw_SOURCES ${common_SOURCES} egldevice_init.c egldevice_monitor.c egldevice_window.c
linux_joystick.c posix_time.c posix_tls.c xkb_unicode.c
egl_context.c)
elseif (_GLFW_MIR)
set(glfw_HEADERS ${common_HEADERS} mir_platform.h linux_joystick.h
posix_time.h posix_thread.h xkb_unicode.h egl_context.h

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@ -116,10 +116,18 @@ static GLFWbool chooseEGLConfig(const _GLFWctxconfig* ctxconfig,
if (getEGLConfigAttrib(n, EGL_COLOR_BUFFER_TYPE) != EGL_RGB_BUFFER)
continue;
#if defined(_GLFW_EGLDEVICE)
// Only consider stream EGLConfigs
if (!(getConfigAttrib(n, EGL_SURFACE_TYPE) & EGL_STREAM_BIT_KHR))
continue;
#else
// Only consider window EGLConfigs
if (!(getEGLConfigAttrib(n, EGL_SURFACE_TYPE) & EGL_WINDOW_BIT))
continue;
#endif
#if defined(_GLFW_X11)
// Only consider EGLConfigs with associated Visuals
if (!getEGLConfigAttrib(n, EGL_NATIVE_VISUAL_ID))
@ -376,6 +384,9 @@ GLFWbool _glfwInitEGL(void)
return GLFW_FALSE;
}
// For EGLDevice backend the display gets initialized
// in _glfwPlatformInit()
#if !defined(_GLFW_EGLDEVICE)
_glfw.egl.display = eglGetDisplay(_GLFW_EGL_NATIVE_DISPLAY);
if (_glfw.egl.display == EGL_NO_DISPLAY)
{
@ -396,6 +407,7 @@ GLFWbool _glfwInitEGL(void)
_glfwTerminateEGL();
return GLFW_FALSE;
}
#endif
_glfw.egl.KHR_create_context =
extensionSupportedEGL("EGL_KHR_create_context");
@ -581,6 +593,9 @@ GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
setAttrib(EGL_NONE, EGL_NONE);
}
// The surface for EGLDevice backened is created in _glfwPlatformCreateWindow
//
#if !defined (_GLFW_EGLDEVICE)
window->context.egl.surface =
eglCreateWindowSurface(_glfw.egl.display,
config,
@ -593,6 +608,7 @@ GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
getEGLErrorString(eglGetError()));
return GLFW_FALSE;
}
#endif
window->context.egl.config = config;

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@ -47,6 +47,8 @@ typedef struct wl_egl_window* EGLNativeWindowType;
#define EGLAPIENTRY
typedef MirEGLNativeDisplayType EGLNativeDisplayType;
typedef MirEGLNativeWindowType EGLNativeWindowType;
#elif defined(_GLFW_EGLDEVICE)
#include <EGL/eglplatform.h>
#else
#error "No supported EGL platform selected"
#endif

301
src/egldevice_init.c Normal file
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@ -0,0 +1,301 @@
//========================================================================
// GLFW 3.2 EGLDevice - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
#include <linux/limits.h>
#include "egl_context.h"
static GLFWbool initializeExtensions()
{
_glfw.egldevice.eglQueryDevicesEXT =
(PFNEGLQUERYDEVICESEXTPROC)
_glfw.egl.GetProcAddress("eglQueryDevicesEXT");
_glfw.egldevice.eglQueryDeviceStringEXT =
(PFNEGLQUERYDEVICESTRINGEXTPROC)
_glfw.egl.GetProcAddress("eglQueryDeviceStringEXT");
_glfw.egldevice.eglGetPlatformDisplayEXT =
(PFNEGLGETPLATFORMDISPLAYEXTPROC)
_glfw.egl.GetProcAddress("eglGetPlatformDisplayEXT");
_glfw.egldevice.eglGetOutputLayersEXT =
(PFNEGLGETOUTPUTLAYERSEXTPROC)
_glfw.egl.GetProcAddress("eglGetOutputLayersEXT");
_glfw.egldevice.eglCreateStreamKHR =
(PFNEGLCREATESTREAMKHRPROC)
_glfw.egl.GetProcAddress("eglCreateStreamKHR");
_glfw.egldevice.eglDestroyStreamKHR =
(PFNEGLDESTROYSTREAMKHRPROC)
_glfw.egl.GetProcAddress("eglDestroyStreamKHR");
_glfw.egldevice.eglStreamConsumerOutputEXT =
(PFNEGLSTREAMCONSUMEROUTPUTEXTPROC)
_glfw.egl.GetProcAddress("eglStreamConsumerOutputEXT");
_glfw.egldevice.eglCreateStreamProducerSurfaceKHR =
(PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC)
_glfw.egl.GetProcAddress("eglCreateStreamProducerSurfaceKHR");
if(!_glfw.egldevice.eglQueryDevicesEXT ||
!_glfw.egldevice.eglQueryDeviceStringEXT ||
!_glfw.egldevice.eglGetPlatformDisplayEXT ||
!_glfw.egldevice.eglGetOutputLayersEXT ||
!_glfw.egldevice.eglCreateStreamKHR ||
!_glfw.egldevice.eglDestroyStreamKHR ||
!_glfw.egldevice.eglStreamConsumerOutputEXT ||
!_glfw.egldevice.eglCreateStreamProducerSurfaceKHR)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Missing required function(s)");
return GLFW_FALSE;
}
return GLFW_TRUE;
}
static EGLDeviceEXT getEGLDevice(void)
{
int i, num_devs;
EGLDeviceEXT* egl_devs, eglDevice;
const char *clientExtensionString;
eglDevice = EGL_NO_DEVICE_EXT;
clientExtensionString = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
if (!_glfwStringInExtensionString("EGL_EXT_device_base",
clientExtensionString) &&
(!_glfwStringInExtensionString("EGL_EXT_device_enumeration",
clientExtensionString) ||
!_glfwStringInExtensionString("EGL_EXT_device_query",
clientExtensionString)))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: EGL_EXT_device base extensions not found");
}
if (!_glfw.egldevice.eglQueryDevicesEXT(0, NULL, &num_devs))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Falied to query EGLDevice");
}
if (num_devs < 1)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: No Devices Found");
}
egl_devs = calloc(sizeof(EGLDeviceEXT), num_devs);
if (egl_devs == NULL)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Unable to allocate memory for device storage");
}
// Select suitable device
if (!_glfw.egldevice.eglQueryDevicesEXT(num_devs, egl_devs, &num_devs))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Failed to query EGL devices");
}
for (i = 0; i <= num_devs; i++)
{
const char* deviceExtensionString;
deviceExtensionString =
_glfw.egldevice.eglQueryDeviceStringEXT(egl_devs[i], EGL_EXTENSIONS);
if (_glfwStringInExtensionString("EGL_EXT_device_drm",
deviceExtensionString))
{
eglDevice = egl_devs[i];
break;
}
}
free(egl_devs);
if (eglDevice == EGL_NO_DEVICE_EXT)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Missing required extension:"
" EGL_EXT_device_drm");
}
return eglDevice;
}
static int getDRMFd(EGLDeviceEXT eglDevice)
{
int drm_fd;
const char* drmName;
drmName = _glfw.egldevice.eglQueryDeviceStringEXT(eglDevice,
EGL_DRM_DEVICE_FILE_EXT);
if (!drmName || (strnlen(drmName, PATH_MAX) == 0))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Couldn't obtain device file from 0x%p",
(void*)(uintptr_t)eglDevice);
}
drm_fd = drmOpen(drmName, NULL);
if (drm_fd < 0)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Couldn't open device file '%s'", drmName);
}
return drm_fd;
}
static GLFWbool initEGLDisplay(EGLDeviceEXT egl_dev, int drm_fd)
{
const char* displayExtensionString;
EGLint displayAttribs[] = {
EGL_DRM_MASTER_FD_EXT,
drm_fd,
EGL_NONE
};
_glfw.egl.display =
_glfw.egldevice.eglGetPlatformDisplayEXT(EGL_PLATFORM_DEVICE_EXT,
(void*)egl_dev,
displayAttribs);
if (_glfw.egl.display == EGL_NO_DISPLAY)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Couldn't obtain EGLDisplay for device");
return GLFW_FALSE;
}
if (!eglInitialize(_glfw.egl.display, &_glfw.egl.major, &_glfw.egl.minor))
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"EGL: Failed to initialize EGL: %s",
eglGetError());
return GLFW_FALSE;
}
// Check for stream_consumer_egloutput + output_drm support
displayExtensionString = eglQueryString(_glfw.egl.display, EGL_EXTENSIONS);
if (!_glfwStringInExtensionString("EGL_EXT_output_base",
displayExtensionString))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Missing required extension:"
" EGL_EXT_output_base");
return GLFW_FALSE;
}
if (!_glfwStringInExtensionString("EGL_EXT_output_drm",
displayExtensionString))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Missing required extension:"
" EGL_EXT_output_drm");
return GLFW_FALSE;
}
if (!_glfwStringInExtensionString("EGL_KHR_stream",
displayExtensionString))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Missing required extension:"
" EGL_KHR_stream");
return GLFW_FALSE;
}
if (!_glfwStringInExtensionString("EGL_KHR_stream_producer_eglsurface",
displayExtensionString))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Missing required extension:"
" EGL_KHR_stream_producer_eglsurface");
return GLFW_FALSE;
}
if (!_glfwStringInExtensionString("EGL_EXT_stream_consumer_egloutput",
displayExtensionString))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Missing required extension:"
" EGL_EXT_stream_consumer_egloutput");
return GLFW_FALSE;
}
return GLFW_TRUE;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
int _glfwPlatformInit(void)
{
EGLDeviceEXT egl_dev;
int drm_fd;
if (!_glfwInitThreadLocalStoragePOSIX())
return GLFW_FALSE;
// Initialize EGL
if (!_glfwInitEGL())
return GLFW_FALSE;
// Initialize global data and extension function pointers
if (!initializeExtensions())
return GLFW_FALSE;
// Query and Obtain EGLDevice
egl_dev = getEGLDevice();
// Obtain and open DRM device file
drm_fd = getDRMFd(egl_dev);
// Store for use later
_glfw.egldevice.drmFd = drm_fd;
// Obtain EGLDisplay
if (!initEGLDisplay(egl_dev, drm_fd))
return GLFW_FALSE;
_glfwInitTimerPOSIX();
return GLFW_TRUE;
}
void _glfwPlatformTerminate(void)
{
_glfwTerminateEGL();
_glfwTerminateJoysticksLinux();
_glfwTerminateThreadLocalStoragePOSIX();
}
const char* _glfwPlatformGetVersionString(void)
{
return _GLFW_VERSION_NUMBER "EGLDEVICE"
#if defined(_GLFW_EGL)
" EGL"
#endif
#if defined(_GLFW_BUILD_DLL)
" shared"
#endif
;
}

177
src/egldevice_monitor.c Normal file
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@ -0,0 +1,177 @@
//========================================================================
// GLFW 3.2 EGLDevice - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
static GLFWbool pickConnector(_GLFWmonitor* monitor, int drm_fd, drmModeRes* res_info)
{
int i, j;
// Getting suitable connector, encoder and crtc
for (i = 0; i < res_info->count_connectors; i++)
{
monitor->egldevice.connId = res_info->connectors[i];
drmModeConnector* conn_info;
conn_info =
drmModeGetConnector(drm_fd, monitor->egldevice.connId);
if (!conn_info)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Unable to obtain info for connector (%d)",
monitor->egldevice.connId);
return GLFW_FALSE;
}
if (conn_info->connection == DRM_MODE_CONNECTED &&
conn_info->count_modes > 0 &&
conn_info->count_encoders > 0)
{
monitor->egldevice.encId = conn_info->encoders[0];
drmModeEncoder* enc_info;
enc_info =
drmModeGetEncoder(drm_fd, monitor->egldevice.encId);
if (!enc_info) {
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Unable to query DRM-KMS"
" information for connector index %d", i);
}
// Select the modesize
monitor->currentMode.width = (int)conn_info->modes[0].hdisplay;
monitor->currentMode.height = (int)conn_info->modes[0].vdisplay;
monitor->currentMode.refreshRate = (int)conn_info->modes[0].vrefresh;
monitor->modeCount = (int)conn_info->count_modes;
monitor->name = conn_info->modes[0].name;
for (j = 0; j < res_info->count_crtcs; j++)
{
if ((enc_info->possible_crtcs & (1 << j)) == 0)
continue;
monitor->egldevice.crtcId = res_info->crtcs[j];
monitor->egldevice.crtcIndex = j;
if (res_info->crtcs[i] == enc_info->crtc_id)
break;
}
if (monitor->egldevice.crtcId == 0)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Unable to select suitable CRTC");
return GLFW_FALSE;
}
drmModeFreeEncoder(enc_info);
}
drmModeFreeConnector(conn_info);
}
return GLFW_TRUE;
}
static GLFWbool initDRMResources(_GLFWmonitor* monitor, int drm_fd)
{
drmModeRes* res_info;
res_info = drmModeGetResources(drm_fd);
if (!res_info)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Couldn't obtain DRM-KMS resources");
return GLFW_FALSE;
}
if(!pickConnector(monitor, drm_fd, res_info))
return GLFW_FALSE;
drmModeFreeResources(res_info);
return GLFW_TRUE;
}
/////////////////////////////////////////////////////////////////////////////
/////////// GLFW platform API //////////////
/////////////////////////////////////////////////////////////////////////////
_GLFWmonitor** _glfwPlatformGetMonitors(int* count)
{
_GLFWmonitor** monitors;
_GLFWmonitor* monitor;
int monitorsCount = 1;
monitors = calloc(monitorsCount, sizeof(_GLFWmonitor*));
monitor = calloc(1, sizeof(_GLFWmonitor));
*count = 1;
// Obtain DRM resource info
if (!initDRMResources(monitor, _glfw.egldevice.drmFd))
return GLFW_FALSE;
monitors[0] = monitor;
return monitors;
}
GLFWbool _glfwPlatformIsSameMonitor(_GLFWmonitor* first, _GLFWmonitor* second)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformIsSameMonitor not implemented");
return 0;
}
void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetMonitorPos not implemented");
}
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetVideoModes not implemented");
*found = 0;
return NULL;
}
void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetVideoMode not implemented");
}
void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetGammaRamp not implemented");
}
void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetGammaRamp not implemented");
}

119
src/egldevice_platform.h Normal file
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@ -0,0 +1,119 @@
//========================================================================
// GLFW 3.2 EGLDevice - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#ifndef _glfw3_egldevice_h_
#define _glfw3_egldevice_h_
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/select.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <assert.h>
#include <math.h>
#include <stdbool.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <dlfcn.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <drm_fourcc.h>
#include "posix_time.h"
#include "linux_joystick.h"
#include "posix_tls.h"
#include "egl_context.h"
#define _glfw_dlopen(name) dlopen(name, RTLD_LAZY | RTLD_LOCAL)
#define _glfw_dlclose(handle) dlclose(handle)
#define _glfw_dlsym(handle, name) dlsym(handle, name)
#define _GLFW_EGL_NATIVE_DISPLAY EGL_DEFAULT_DISPLAY
#define _GLFW_EGL_NATIVE_WINDOW ((EGLNativeWindowType)window->egldevice.handle)
#define _GLFW_PLATFORM_WINDOW_STATE _GLFWwindowEgldevice egldevice
#define _GLFW_PLATFORM_LIBRARY_WINDOW_STATE _GLFWlibraryEgldevice egldevice
#define _GLFW_PLATFORM_MONITOR_STATE _GLFWmonitorEgldevice egldevice
#define _GLFW_PLATFORM_CURSOR_STATE _GLFWcursorEgldevice egldevice
#define _GLFW_PLATFORM_CONTEXT_STATE
#define _GLFW_PLATFORM_LIBRARY_CONTEXT_STATE
// EGLDEVICE-specific per-window data
//
typedef struct _GLFWwindowEgldevice
{
int xsurfsize, ysurfsize;
int xoffset, yoffset;
int fifo;
uint32_t planeId;
EGLDisplay handle;
EGLOutputLayerEXT eglLayer;
EGLStreamKHR eglStream;
} _GLFWwindowEgldevice;
// EGLDEVICE-specific global data
//
typedef struct _GLFWlibraryEgldevice
{
int drmFd;
PFNEGLQUERYDEVICESEXTPROC eglQueryDevicesEXT;
PFNEGLQUERYDEVICESTRINGEXTPROC eglQueryDeviceStringEXT;
PFNEGLGETPLATFORMDISPLAYEXTPROC eglGetPlatformDisplayEXT;
PFNEGLGETOUTPUTLAYERSEXTPROC eglGetOutputLayersEXT;
PFNEGLCREATESTREAMKHRPROC eglCreateStreamKHR;
PFNEGLDESTROYSTREAMKHRPROC eglDestroyStreamKHR;
PFNEGLSTREAMCONSUMEROUTPUTEXTPROC eglStreamConsumerOutputEXT;
PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC eglCreateStreamProducerSurfaceKHR;
PFNEGLSTREAMATTRIBKHRPROC eglStreamAttribKHR;
PFNEGLSTREAMCONSUMERACQUIREATTRIBEXTPROC eglStreamConsumerAcquireAttribEXT;
} _GLFWlibraryEgldevice;
// EGLDEVICE-specific per-monitor data
//
typedef struct _GLFWmonitorEgldevice {
int crtcIndex;
uint32_t connId, encId, crtcId;
} _GLFWmonitorEgldevice;
// EGLDEVICE-specific per-cursor data
//
typedef struct _GLFWcursorEgldevice {
} _GLFWcursorEgldevice;
#endif // _glfw3_egldevice_platform_h_

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@ -0,0 +1,396 @@
//========================================================================
// GLFW 3.2 EGLDevice - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
///////////////////////////////////////////////////////////////////////////
//////// GLFW platform API /////////////
///////////////////////////////////////////////////////////////////////////
int _glfwPlatformCreateWindow(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
int n;
_GLFWmonitor* monitor;
EGLAttrib layerAttribs[] = { EGL_NONE, EGL_NONE, EGL_NONE };
EGLint streamAttribs[] = { EGL_STREAM_FIFO_LENGTH_KHR,
window->egldevice.fifo, EGL_NONE };
EGLint surfaceAttribs[] = { EGL_WIDTH, 0, EGL_HEIGHT, 0, EGL_NONE };
if (window->monitor)
monitor = window->monitor;
else
monitor = _glfw.monitors[0];
window->egldevice.xsurfsize = wndconfig->width;
window->egldevice.ysurfsize = wndconfig->height;
if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
return GLFW_FALSE;
// Get the layer for this crtc/plane
layerAttribs[0] = EGL_DRM_CRTC_EXT;
layerAttribs[1] = (EGLAttrib)monitor->egldevice.crtcId;
if (!_glfw.egldevice.eglGetOutputLayersEXT(_glfw.egl.display, layerAttribs,
&window->egldevice.eglLayer,
1, &n) || !n)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Unable to obtain EGLOutputLayer");
return GLFW_FALSE;
}
// Create a stream and connect to the output
window->egldevice.eglStream =
_glfw.egldevice.eglCreateStreamKHR(_glfw.egl.display, streamAttribs);
if (window->egldevice.eglStream == EGL_NO_STREAM_KHR)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Unable to create stream (error 0x%x)",
eglGetError());
return GLFW_FALSE;
}
if (!_glfw.egldevice.eglStreamConsumerOutputEXT(_glfw.egl.display,
window->egldevice.eglStream,
window->egldevice.eglLayer))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Unable to connect stream (error 0x%x)",
eglGetError());
return GLFW_FALSE;
}
// Create a surface to feed the stream
surfaceAttribs[1] = window->egldevice.xsurfsize;
surfaceAttribs[3] = window->egldevice.ysurfsize;
window->context.egl.surface =
_glfw.egldevice.eglCreateStreamProducerSurfaceKHR(_glfw.egl.display,
window->context.egl.config,
window->egldevice.eglStream,
surfaceAttribs);
if (window->context.egl.surface == EGL_NO_SURFACE)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Unable to create rendering"
" surface (error 0x%x)", eglGetError());
return GLFW_FALSE;
}
return GLFW_TRUE;
}
void _glfwPlatformDestroyWindow(_GLFWwindow* window)
{
if (window->context.client != GLFW_NO_API)
window->context.destroy(window);
if (window->egldevice.eglStream != EGL_NO_STREAM_KHR)
{
_glfw.egldevice.eglDestroyStreamKHR(_glfw.egl.display,
window->egldevice.eglStream);
}
}
void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetWindowTitle is not supported");
}
void _glfwPlatformSetWindowIcon(_GLFWwindow* window,
int count, const GLFWimage* images)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetWindowIcon is not supported");
}
void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
{
if (xpos)
*xpos = window->egldevice.xoffset;
if (ypos)
*ypos = window->egldevice.yoffset;
}
void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos)
{
window->egldevice.xoffset = xpos;
window->egldevice.yoffset = ypos;
drmModeRes* res_info;
_GLFWmonitor* monitor;
if (window->monitor)
monitor = window->monitor;
else
monitor = _glfw.monitors[0];
res_info = drmModeGetResources(_glfw.egldevice.drmFd);
if (drmModeSetCrtc(_glfw.egldevice.drmFd,
res_info->crtcs[monitor->egldevice.crtcIndex],
-1, window->egldevice.xoffset, window->egldevice.yoffset,
&res_info->connectors[monitor->egldevice.crtcIndex], 1, NULL))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: Setting window pos failed");
}
drmModeFreeResources(res_info);
}
void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
{
if (width)
*width = window->egldevice.xsurfsize;
if (height)
*height = window->egldevice.ysurfsize;
}
void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetWindowSize not implemented");
}
void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window,
int minwidth, int minheight,
int maxwidth, int maxheight)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetWindowSizeLimits not implemented");
}
void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int numer, int denom)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetWindowAspectRatio not implemented");
}
void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height)
{
_glfwPlatformGetWindowSize(window, width, height);
}
void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
int* left, int* top,
int* right, int* bottom)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetWindowFrameSize not implemented");
}
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformIconifyWindow not implemented");
}
void _glfwPlatformRestoreWindow(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformRestoreWindow not implemented");
}
void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformMaximizeWindow not implemented");
}
void _glfwPlatformShowWindow(_GLFWwindow* window)
{
return;
}
void _glfwPlatformUnhideWindow(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformUnhideWindow not implemented");
}
void _glfwPlatformHideWindow(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformHideWindow not implemented");
}
void _glfwPlatformFocusWindow(_GLFWwindow* window)
{
return;
}
void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
_GLFWmonitor* monitor,
int xpos, int ypos,
int width, int height,
int refreshRate)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetWindowMonitor not implemented");
}
int _glfwPlatformWindowFocused(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformWindowFocused not implemented");
return GLFW_FALSE;
}
int _glfwPlatformWindowIconified(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformWindowIconified not implemented");
return GLFW_FALSE;
}
int _glfwPlatformWindowVisible(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformWindowVisible not implemented");
return GLFW_FALSE;
}
int _glfwPlatformWindowMaximized(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformWindowMaximized not implemented");
return 0;
}
void _glfwPlatformPollEvents(void)
{
return;
}
void _glfwPlatformWaitEvents(void)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformWaitEvents not supported");
}
void _glfwPlatformWaitEventsTimeout(double timeout)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformWaitEventsTimeout not supported");
}
void _glfwPlatformPostEmptyEvent(void)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformPostEmptyEvent not supported");
}
void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetCursorPos not supported");
}
void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetCursorPos not supported");
}
void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetCursorMode not supported");
}
const char* _glfwPlatformGetKeyName(int key, int scancode)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetKeyName not supported");
return NULL;
}
int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
const GLFWimage* image,
int xhot, int yhot)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformCreateCursor not supported");
return GLFW_FALSE;
}
int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformCreateStandardCursor not supported");
return GLFW_FALSE;
}
void _glfwPlatformDestroyCursor(_GLFWcursor* cursor)
{
return;
}
void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetCursor not supported");
}
void _glfwPlatformSetClipboardString(_GLFWwindow* window, const char* string)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformSetClipboardString not supported");
}
const char* _glfwPlatformGetClipboardString(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetClipboardString not supported");
return NULL;
}
char** _glfwPlatformGetRequiredInstanceExtensions(uint32_t* count)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetRequiredInstanceExtensions not supported");
return NULL;
}
int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
VkPhysicalDevice device,
uint32_t queuefamily)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformGetPhysicalDevicePresentationSupport not supported");
return 0;
}
VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
_GLFWwindow* window,
const VkAllocationCallbacks* allocator,
VkSurfaceKHR* surface)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGLDevice: _glfwPlatformCreateWindowSurface not supported");
return (VkResult)NULL;
}

View File

@ -46,6 +46,8 @@
#cmakedefine _GLFW_MIR
// Define this to 1 if building GLFW for OSMesa
#cmakedefine _GLFW_OSMESA
// Define this to 1 if building GLFW for EGLDevice
#cmakedefine _GLFW_EGLDEVICE
// Define this to 1 if building as a shared library / dynamic library / DLL
#cmakedefine _GLFW_BUILD_DLL

View File

@ -190,6 +190,8 @@ typedef void (APIENTRY * PFN_vkVoidFunction)(void);
#include "mir_platform.h"
#elif defined(_GLFW_OSMESA)
#include "null_platform.h"
#elif defined(_GLFW_EGLDEVICE)
#include "egldevice_platform.h"
#else
#error "No supported window creation API selected"
#endif