glfw/src/mir_window.c
2016-05-02 21:59:57 +02:00

852 lines
26 KiB
C

//========================================================================
// GLFW 3.2 Mir - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2014-2015 Brandon Schaefer <brandon.schaefer@canonical.com>
//
// 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/input.h>
#include <stdlib.h>
#include <string.h>
typedef struct EventNode
{
TAILQ_ENTRY(EventNode) entries;
const MirEvent* event;
_GLFWwindow* window;
} EventNode;
static void deleteNode(EventQueue* queue, EventNode* node)
{
mir_event_unref(node->event);
free(node);
}
static GLFWbool emptyEventQueue(EventQueue* queue)
{
return queue->head.tqh_first == NULL;
}
// TODO The mir_event_ref is not supposed to be used but ... its needed
// in this case. Need to wait until we can read from an FD set up by mir
// for single threaded event handling.
static EventNode* newEventNode(const MirEvent* event, _GLFWwindow* context)
{
EventNode* new_node = calloc(1, sizeof(EventNode));
new_node->event = mir_event_ref(event);
new_node->window = context;
return new_node;
}
static void enqueueEvent(const MirEvent* event, _GLFWwindow* context)
{
pthread_mutex_lock(&_glfw.mir.event_mutex);
EventNode* new_node = newEventNode(event, context);
TAILQ_INSERT_TAIL(&_glfw.mir.event_queue->head, new_node, entries);
pthread_cond_signal(&_glfw.mir.event_cond);
pthread_mutex_unlock(&_glfw.mir.event_mutex);
}
static EventNode* dequeueEvent(EventQueue* queue)
{
EventNode* node = NULL;
pthread_mutex_lock(&_glfw.mir.event_mutex);
node = queue->head.tqh_first;
if (node)
TAILQ_REMOVE(&queue->head, node, entries);
pthread_mutex_unlock(&_glfw.mir.event_mutex);
return node;
}
/* FIXME Soon to be changed upstream mir! So we can use an egl config to figure out
the best pixel format!
*/
static MirPixelFormat findValidPixelFormat(void)
{
unsigned int i, validFormats, mirPixelFormats = 32;
MirPixelFormat formats[mir_pixel_formats];
mir_connection_get_available_surface_formats(_glfw.mir.connection, formats,
mirPixelFormats, &validFormats);
for (i = 0; i < validFormats; i++)
{
if (formats[i] == mir_pixel_format_abgr_8888 ||
formats[i] == mir_pixel_format_xbgr_8888 ||
formats[i] == mir_pixel_format_argb_8888 ||
formats[i] == mir_pixel_format_xrgb_8888)
{
return formats[i];
}
}
return mir_pixel_format_invalid;
}
static int mirModToGLFWMod(uint32_t mods)
{
int publicMods = 0x0;
if (mods & mir_input_event_modifier_alt)
publicMods |= GLFW_MOD_ALT;
else if (mods & mir_input_event_modifier_shift)
publicMods |= GLFW_MOD_SHIFT;
else if (mods & mir_input_event_modifier_ctrl)
publicMods |= GLFW_MOD_CONTROL;
else if (mods & mir_input_event_modifier_meta)
publicMods |= GLFW_MOD_SUPER;
return publicMods;
}
static int toGLFWKeyCode(uint32_t key)
{
if (key < sizeof(_glfw.mir.publicKeys) / sizeof(_glfw.mir.publicKeys[0]))
return _glfw.mir.publicKeys[key];
return GLFW_KEY_UNKNOWN;
}
static void handleKeyEvent(const MirKeyboardEvent* key_event, _GLFWwindow* window)
{
const int action = mir_keyboard_event_action (key_event);
const int scan_code = mir_keyboard_event_scan_code(key_event);
const int key_code = mir_keyboard_event_key_code (key_event);
const int modifiers = mir_keyboard_event_modifiers(key_event);
const int pressed = action == mir_keyboard_action_up ? GLFW_RELEASE : GLFW_PRESS;
const int mods = mirModToGLFWMod(modifiers);
const long text = _glfwKeySym2Unicode(key_code);
const int plain = !(mods & (GLFW_MOD_CONTROL | GLFW_MOD_ALT));
_glfwInputKey(window, toGLFWKeyCode(scan_code), scan_code, pressed, mods);
if (text != -1)
_glfwInputChar(window, text, mods, plain);
}
static void handlePointerButton(_GLFWwindow* window,
int pressed,
const MirPointerEvent* pointer_event)
{
int mods = mir_pointer_event_modifiers(pointer_event);
const int publicMods = mirModToGLFWMod(mods);
MirPointerButton button = mir_pointer_button_primary;
static uint32_t oldButtonStates = 0;
uint32_t newButtonStates = mir_pointer_event_buttons(pointer_event);
int publicButton = GLFW_MOUSE_BUTTON_LEFT;
// XOR our old button states our new states to figure out what was added or removed
button = newButtonStates ^ oldButtonStates;
switch (button)
{
case mir_pointer_button_primary:
publicButton = GLFW_MOUSE_BUTTON_LEFT;
break;
case mir_pointer_button_secondary:
publicButton = GLFW_MOUSE_BUTTON_RIGHT;
break;
case mir_pointer_button_tertiary:
publicButton = GLFW_MOUSE_BUTTON_MIDDLE;
break;
case mir_pointer_button_forward:
// FIXME What is the forward button?
publicButton = GLFW_MOUSE_BUTTON_4;
break;
case mir_pointer_button_back:
// FIXME What is the back button?
publicButton = GLFW_MOUSE_BUTTON_5;
break;
default:
break;
}
oldButtonStates = newButtonStates;
_glfwInputMouseClick(window, publicButton, pressed, publicMods);
}
static void handlePointerMotion(_GLFWwindow* window,
const MirPointerEvent* pointer_event)
{
int current_x = window->cursorPosX;
int current_y = window->cursorPosY;
int x = mir_pointer_event_axis_value(pointer_event, mir_pointer_axis_x);
int y = mir_pointer_event_axis_value(pointer_event, mir_pointer_axis_y);
int dx = mir_pointer_event_axis_value(pointer_event, mir_pointer_axis_hscroll);
int dy = mir_pointer_event_axis_value(pointer_event, mir_pointer_axis_vscroll);
if (current_x != x || current_y != y)
_glfwInputCursorMotion(window, x, y);
if (dx != 0 || dy != 0)
_glfwInputScroll(window, dx, dy);
}
static void handlePointerEvent(const MirPointerEvent* pointer_event,
_GLFWwindow* window)
{
int action = mir_pointer_event_action(pointer_event);
switch (action)
{
case mir_pointer_action_button_down:
handlePointerButton(window, GLFW_PRESS, pointer_event);
break;
case mir_pointer_action_button_up:
handlePointerButton(window, GLFW_RELEASE, pointer_event);
break;
case mir_pointer_action_motion:
handlePointerMotion(window, pointer_event);
break;
case mir_pointer_action_enter:
case mir_pointer_action_leave:
break;
default:
break;
}
}
static void handleInput(const MirInputEvent* input_event, _GLFWwindow* window)
{
int type = mir_input_event_get_type(input_event);
switch (type)
{
case mir_input_event_type_key:
handleKeyEvent(mir_input_event_get_keyboard_event(input_event), window);
break;
case mir_input_event_type_pointer:
handlePointerEvent(mir_input_event_get_pointer_event(input_event), window);
break;
default:
break;
}
}
static void handleEvent(const MirEvent* event, _GLFWwindow* window)
{
int type = mir_event_get_type(event);
switch (type)
{
case mir_event_type_input:
handleInput(mir_event_get_input_event(event), window);
break;
default:
break;
}
}
static void addNewEvent(MirSurface* surface, const MirEvent* event, void* context)
{
enqueueEvent(event, context);
}
static GLFWbool createSurface(_GLFWwindow* window)
{
MirSurfaceSpec* spec;
MirBufferUsage buffer_usage = mir_buffer_usage_hardware;
MirPixelFormat pixel_format = findValidPixelFormat();
if (pixel_format == mir_pixel_format_invalid)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unable to find a correct pixel format");
return GLFW_FALSE;
}
spec = mir_connection_create_spec_for_normal_surface(_glfw.mir.connection,
window->mir.width,
window->mir.height,
pixel_format);
mir_surface_spec_set_buffer_usage(spec, buffer_usage);
mir_surface_spec_set_name(spec, "MirSurface");
window->mir.surface = mir_surface_create_sync(spec);
mir_surface_spec_release(spec);
if (!mir_surface_is_valid(window->mir.surface))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unable to create surface: %s",
mir_surface_get_error_message(window->mir.surface));
return GLFW_FALSE;
}
mir_surface_set_event_handler(window->mir.surface, addNewEvent, window);
return GLFW_TRUE;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
void _glfwInitEventQueueMir(EventQueue* queue)
{
TAILQ_INIT(&queue->head);
}
void _glfwDeleteEventQueueMir(EventQueue* queue)
{
if (queue)
{
EventNode* node, *node_next;
node = queue->head.tqh_first;
while (node != NULL)
{
node_next = node->entries.tqe_next;
TAILQ_REMOVE(&queue->head, node, entries);
deleteNode(queue, node);
node = node_next;
}
free(queue);
}
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
int _glfwPlatformCreateWindow(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
if (window->monitor)
{
GLFWvidmode mode;
_glfwPlatformGetVideoMode(window->monitor, &mode);
mir_surface_set_state(window->mir.surface, mir_surface_state_fullscreen);
if (wndconfig->width > mode.width || wndconfig->height > mode.height)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Requested surface size too large: %ix%i",
wndconfig->width, wndconfig->height);
return GLFW_FALSE;
}
}
window->mir.width = wndconfig->width;
window->mir.height = wndconfig->height;
if (!createSurface(window))
return GLFW_FALSE;
window->mir.window = mir_buffer_stream_get_egl_native_window(
mir_surface_get_buffer_stream(window->mir.surface));
if (ctxconfig->api != GLFW_NO_API)
{
if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
return GLFW_FALSE;
}
return GLFW_TRUE;
}
void _glfwPlatformDestroyWindow(_GLFWwindow* window)
{
if (mir_surface_is_valid(window->mir.surface))
{
mir_surface_release_sync(window->mir.surface);
window->mir.surface = NULL;
}
_glfwDestroyContextEGL(window);
}
void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title)
{
MirSurfaceSpec* spec;
const char* e_title = title ? title : "";
spec = mir_connection_create_spec_for_changes(_glfw.mir.connection);
mir_surface_spec_set_name(spec, e_title);
mir_surface_apply_spec(window->mir.surface, spec);
mir_surface_spec_release(spec);
}
void _glfwPlatformSetWindowIcon(_GLFWwindow* window,
int count, const GLFWimage* images)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
{
MirSurfaceSpec* spec;
spec = mir_connection_create_spec_for_changes(_glfw.mir.connection);
mir_surface_spec_set_width (spec, width);
mir_surface_spec_set_height(spec, height);
mir_surface_apply_spec(window->mir.surface, spec);
mir_surface_spec_release(spec);
}
void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window,
int minwidth, int minheight,
int maxwidth, int maxheight)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int numer, int denom)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
int* left, int* top,
int* right, int* bottom)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
{
if (width)
*width = window->mir.width;
if (height)
*height = window->mir.height;
}
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
{
mir_surface_set_state(window->mir.surface, mir_surface_state_minimized);
}
void _glfwPlatformRestoreWindow(_GLFWwindow* window)
{
mir_surface_set_state(window->mir.surface, mir_surface_state_restored);
}
void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformHideWindow(_GLFWwindow* window)
{
MirSurfaceSpec* spec;
spec = mir_connection_create_spec_for_changes(_glfw.mir.connection);
mir_surface_spec_set_state(spec, mir_surface_state_hidden);
mir_surface_apply_spec(window->mir.surface, spec);
mir_surface_spec_release(spec);
}
void _glfwPlatformShowWindow(_GLFWwindow* window)
{
MirSurfaceSpec* spec;
spec = mir_connection_create_spec_for_changes(_glfw.mir.connection);
mir_surface_spec_set_state(spec, mir_surface_state_restored);
mir_surface_apply_spec(window->mir.surface, spec);
mir_surface_spec_release(spec);
}
void _glfwPlatformFocusWindow(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
_GLFWmonitor* monitor,
int xpos, int ypos,
int width, int height,
int refreshRate)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
int _glfwPlatformWindowFocused(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
return GLFW_FALSE;
}
int _glfwPlatformWindowIconified(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
return GLFW_FALSE;
}
int _glfwPlatformWindowVisible(_GLFWwindow* window)
{
return mir_surface_get_visibility(window->mir.surface) == mir_surface_visibility_exposed;
}
int _glfwPlatformWindowMaximized(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
return GLFW_FALSE;
}
void _glfwPlatformPollEvents(void)
{
EventNode* node = NULL;
while ((node = dequeueEvent(_glfw.mir.event_queue)))
{
handleEvent(node->event, node->window);
deleteNode(_glfw.mir.event_queue, node);
}
}
void _glfwPlatformWaitEvents(void)
{
pthread_mutex_lock(&_glfw.mir.event_mutex);
if (emptyEventQueue(_glfw.mir.event_queue))
pthread_cond_wait(&_glfw.mir.event_cond, &_glfw.mir.event_mutex);
pthread_mutex_unlock(&_glfw.mir.event_mutex);
_glfwPlatformPollEvents();
}
void _glfwPlatformWaitEventsTimeout(double timeout)
{
pthread_mutex_lock(&_glfw.mir.event_mutex);
if (emptyEventQueue(_glfw.mir.event_queue))
{
struct timespec time;
clock_gettime(CLOCK_REALTIME, &time);
time.tv_sec += (long) timeout;
time.tv_nsec += (long) ((timeout - (long) timeout) * 1e9);
pthread_cond_timedwait(&_glfw.mir.event_cond, &_glfw.mir.event_mutex, &time);
}
pthread_mutex_unlock(&_glfw.mir.event_mutex);
_glfwPlatformPollEvents();
}
void _glfwPlatformPostEmptyEvent(void)
{
}
void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height)
{
if (width)
*width = window->mir.width;
if (height)
*height = window->mir.height;
}
// FIXME implement
int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
const GLFWimage* image,
int xhot, int yhot)
{
MirBufferStream* stream;
MirPixelFormat pixel_format = findValidPixelFormat();
int i_w = image->width;
int i_h = image->height;
if (pixel_format == mir_pixel_format_invalid)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unable to find a correct pixel format");
return GLFW_FALSE;
}
stream = mir_connection_create_buffer_stream_sync(_glfw.mir.connection,
i_w, i_h,
pixel_format,
mir_buffer_usage_software);
cursor->mir.conf = mir_cursor_configuration_from_buffer_stream(stream, xhot, yhot);
char* dest;
unsigned char *pixels;
int i, r_stride, bytes_per_pixel, bytes_per_row;
MirGraphicsRegion region;
mir_buffer_stream_get_graphics_region(stream, &region);
// FIXME Figure this out based on the current_pf
bytes_per_pixel = 4;
bytes_per_row = bytes_per_pixel * i_w;
dest = region.vaddr;
pixels = image->pixels;
r_stride = region.stride;
for (i = 0; i < i_h; i++)
{
memcpy(dest, pixels, bytes_per_row);
dest += r_stride;
pixels += r_stride;
}
cursor->mir.custom_cursor = stream;
return GLFW_TRUE;
}
const char* getSystemCursorName(int shape)
{
switch (shape)
{
case GLFW_ARROW_CURSOR:
return mir_arrow_cursor_name;
case GLFW_IBEAM_CURSOR:
return mir_caret_cursor_name;
case GLFW_CROSSHAIR_CURSOR:
return mir_crosshair_cursor_name;
case GLFW_HAND_CURSOR:
return mir_open_hand_cursor_name;
case GLFW_HRESIZE_CURSOR:
return mir_horizontal_resize_cursor_name;
case GLFW_VRESIZE_CURSOR:
return mir_vertical_resize_cursor_name;
}
return NULL;
}
int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape)
{
const char* cursor_name = getSystemCursorName(shape);
if (cursor_name)
{
cursor->mir.conf = mir_cursor_configuration_from_name(cursor_name);
cursor->mir.custom_cursor = NULL;
return GLFW_TRUE;
}
return GLFW_FALSE;
}
void _glfwPlatformDestroyCursor(_GLFWcursor* cursor)
{
if (cursor->mir.conf)
mir_cursor_configuration_destroy(cursor->mir.conf);
if (cursor->mir.custom_cursor)
mir_buffer_stream_release_sync(cursor->mir.custom_cursor);
}
void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
{
if (cursor && cursor->mir.conf)
{
mir_wait_for(mir_surface_configure_cursor(window->mir.surface, cursor->mir.conf));
if (cursor->mir.custom_cursor)
{
/* FIXME Bug https://bugs.launchpad.net/mir/+bug/1477285
Requires a triple buffer swap to get the cursor buffer on top! (since mir is tripled buffered)
*/
mir_buffer_stream_swap_buffers_sync(cursor->mir.custom_cursor);
mir_buffer_stream_swap_buffers_sync(cursor->mir.custom_cursor);
mir_buffer_stream_swap_buffers_sync(cursor->mir.custom_cursor);
}
}
else
{
mir_wait_for(mir_surface_configure_cursor(window->mir.surface, _glfw.mir.default_conf));
}
}
void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformSetCursorPos(_GLFWwindow* window, double xpos, double ypos)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
const char* _glfwPlatformGetKeyName(int key, int scancode)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
return NULL;
}
void _glfwPlatformSetClipboardString(_GLFWwindow* window, const char* string)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
}
const char* _glfwPlatformGetClipboardString(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Unsupported function %s", __PRETTY_FUNCTION__);
return NULL;
}
char** _glfwPlatformGetRequiredInstanceExtensions(uint32_t* count)
{
char** extensions;
*count = 0;
if (!_glfw.vk.KHR_mir_surface)
return NULL;
extensions = calloc(2, sizeof(char*));
extensions[0] = strdup("VK_KHR_surface");
extensions[1] = strdup("VK_KHR_mir_surface");
*count = 2;
return extensions;
}
int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
VkPhysicalDevice device,
uint32_t queuefamily)
{
PFN_vkGetPhysicalDeviceMirPresentationSupportKHR vkGetPhysicalDeviceMirPresentationSupportKHR =
(PFN_vkGetPhysicalDeviceMirPresentationSupportKHR)
vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceMirPresentationSupportKHR");
if (!vkGetPhysicalDeviceMirPresentationSupportKHR)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Mir: Vulkan instance missing VK_KHR_mir_surface extension");
return GLFW_FALSE;
}
return vkGetPhysicalDeviceMirPresentationSupportKHR(device,
queuefamily,
_glfw.mir.connection);
}
VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
_GLFWwindow* window,
const VkAllocationCallbacks* allocator,
VkSurfaceKHR* surface)
{
VkResult err;
VkMirSurfaceCreateInfoKHR sci;
PFN_vkCreateMirSurfaceKHR vkCreateMirSurfaceKHR;
vkCreateMirSurfaceKHR = (PFN_vkCreateMirSurfaceKHR)
vkGetInstanceProcAddr(instance, "vkCreateMirSurfaceKHR");
if (!vkCreateMirSurfaceKHR)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Mir: Vulkan instance missing VK_KHR_mir_surface extension");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
memset(&sci, 0, sizeof(sci));
sci.sType = VK_STRUCTURE_TYPE_MIR_SURFACE_CREATE_INFO_KHR;
sci.connection = _glfw.mir.connection;
sci.mirSurface = window->mir.surface;
err = vkCreateMirSurfaceKHR(instance, &sci, allocator, surface);
if (err)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Mir: Failed to create Vulkan surface: %s",
_glfwGetVulkanResultString(err));
}
return err;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW native API //////
//////////////////////////////////////////////////////////////////////////
GLFWAPI MirConnection* glfwGetMirDisplay(void)
{
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
return _glfw.mir.connection;
}
GLFWAPI MirSurface* glfwGetMirWindow(GLFWwindow* handle)
{
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
return window->mir.surface;
}