src/video/mir/SDL_mirvideo.c - third_party/sdl - Git at Google

 /*
   Simple DirectMedia Layer
   Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>

   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.
 */

 /*
   Contributed by Brandon Schaefer, <brandon.schaefer@canonical.com>
 */

 #include "../../SDL_internal.h"

 #if SDL_VIDEO_DRIVER_MIR

 #include "SDL_video.h"

 #include "SDL_mirframebuffer.h"
 #include "SDL_mirmouse.h"
 #include "SDL_miropengl.h"
 #include "SDL_mirvideo.h"
 #include "SDL_mirwindow.h"

 #include "SDL_mirdyn.h"

 #define MIR_DRIVER_NAME "mir"

 static int
 MIR_VideoInit(_THIS);

 static void
 MIR_VideoQuit(_THIS);

 static int
 MIR_GetDisplayBounds(_THIS, SDL_VideoDisplay* display, SDL_Rect* rect);

 static void
 MIR_GetDisplayModes(_THIS, SDL_VideoDisplay* sdl_display);

 static int
 MIR_SetDisplayMode(_THIS, SDL_VideoDisplay* sdl_display, SDL_DisplayMode* mode);

 static SDL_WindowShaper*
 MIR_CreateShaper(SDL_Window* window)
 {
     /* FIXME Im not sure if mir support this atm, will have to come back to this */
     return NULL;
 }

 static int
 MIR_SetWindowShape(SDL_WindowShaper* shaper, SDL_Surface* shape, SDL_WindowShapeMode* shape_mode)
 {
     return SDL_Unsupported();
 }

 static int
 MIR_ResizeWindowShape(SDL_Window* window)
 {
     return SDL_Unsupported();
 }

 static int
 MIR_Available()
 {
     int available = 0;

     if (SDL_MIR_LoadSymbols()) {
         /* !!! FIXME: try to make a MirConnection here. */
         available = 1;
         SDL_MIR_UnloadSymbols();

     }

     return available;
 }

 static void
 MIR_DeleteDevice(SDL_VideoDevice* device)
 {
     SDL_free(device);
     SDL_MIR_UnloadSymbols();
 }

 void
 MIR_PumpEvents(_THIS)
 {
 }

 static SDL_VideoDevice*
 MIR_CreateDevice(int device_index)
 {
     MIR_Data* mir_data;
     SDL_VideoDevice* device = NULL;

     if (!SDL_MIR_LoadSymbols()) {
         return NULL;
     }

     device = SDL_calloc(1, sizeof(SDL_VideoDevice));
     if (!device) {
         SDL_MIR_UnloadSymbols();
         SDL_OutOfMemory();
         return NULL;
     }

     mir_data = SDL_calloc(1, sizeof(MIR_Data));
     if (!mir_data) {
         SDL_free(device);
         SDL_MIR_UnloadSymbols();
         SDL_OutOfMemory();
         return NULL;
     }

     device->driverdata = mir_data;

     /* mirvideo */
     device->VideoInit        = MIR_VideoInit;
     device->VideoQuit        = MIR_VideoQuit;
     device->GetDisplayBounds = MIR_GetDisplayBounds;
     device->GetDisplayModes  = MIR_GetDisplayModes;
     device->SetDisplayMode   = MIR_SetDisplayMode;
     device->free             = MIR_DeleteDevice;

     /* miropengles */
     device->GL_SwapWindow      = MIR_GL_SwapWindow;
     device->GL_MakeCurrent     = MIR_GL_MakeCurrent;
     device->GL_CreateContext   = MIR_GL_CreateContext;
     device->GL_DeleteContext   = MIR_GL_DeleteContext;
     device->GL_LoadLibrary     = MIR_GL_LoadLibrary;
     device->GL_UnloadLibrary   = MIR_GL_UnloadLibrary;
     device->GL_GetSwapInterval = MIR_GL_GetSwapInterval;
     device->GL_SetSwapInterval = MIR_GL_SetSwapInterval;
     device->GL_GetProcAddress  = MIR_GL_GetProcAddress;

     /* mirwindow */
     device->CreateWindow        = MIR_CreateWindow;
     device->DestroyWindow       = MIR_DestroyWindow;
     device->GetWindowWMInfo     = MIR_GetWindowWMInfo;
     device->SetWindowFullscreen = MIR_SetWindowFullscreen;
     device->MaximizeWindow      = MIR_MaximizeWindow;
     device->MinimizeWindow      = MIR_MinimizeWindow;
     device->RestoreWindow       = MIR_RestoreWindow;

     device->CreateWindowFrom     = NULL;
     device->SetWindowTitle       = NULL;
     device->SetWindowIcon        = NULL;
     device->SetWindowPosition    = NULL;
     device->SetWindowSize        = NULL;
     device->SetWindowMinimumSize = NULL;
     device->SetWindowMaximumSize = NULL;
     device->ShowWindow           = NULL;
     device->HideWindow           = NULL;
     device->RaiseWindow          = NULL;
     device->SetWindowBordered    = NULL;
     device->SetWindowGammaRamp   = NULL;
     device->GetWindowGammaRamp   = NULL;
     device->SetWindowGrab        = NULL;
     device->OnWindowEnter        = NULL;

     /* mirframebuffer */
     device->CreateWindowFramebuffer  = MIR_CreateWindowFramebuffer;
     device->UpdateWindowFramebuffer  = MIR_UpdateWindowFramebuffer;
     device->DestroyWindowFramebuffer = MIR_DestroyWindowFramebuffer;

     device->shape_driver.CreateShaper      = MIR_CreateShaper;
     device->shape_driver.SetWindowShape    = MIR_SetWindowShape;
     device->shape_driver.ResizeWindowShape = MIR_ResizeWindowShape;

     device->PumpEvents = MIR_PumpEvents;

     device->SuspendScreenSaver = NULL;

     device->StartTextInput   = NULL;
     device->StopTextInput    = NULL;
     device->SetTextInputRect = NULL;

     device->HasScreenKeyboardSupport = NULL;
     device->ShowScreenKeyboard       = NULL;
     device->HideScreenKeyboard       = NULL;
     device->IsScreenKeyboardShown    = NULL;

     device->SetClipboardText = NULL;
     device->GetClipboardText = NULL;
     device->HasClipboardText = NULL;

     device->ShowMessageBox = NULL;

     return device;
 }

 VideoBootStrap MIR_bootstrap = {
     MIR_DRIVER_NAME, "SDL Mir video driver",
     MIR_Available, MIR_CreateDevice
 };

 static void
 MIR_SetCurrentDisplayMode(MirDisplayOutput const* out, SDL_VideoDisplay* display)
 {
     SDL_DisplayMode mode = {
         .format = SDL_PIXELFORMAT_RGB888,
         .w = out->modes[out->current_mode].horizontal_resolution,
         .h = out->modes[out->current_mode].vertical_resolution,
         .refresh_rate = out->modes[out->current_mode].refresh_rate,
         .driverdata = NULL
     };

     display->desktop_mode = mode;
     display->current_mode = mode;
 }

 static void
 MIR_AddAllModesFromDisplay(MirDisplayOutput const* out, SDL_VideoDisplay* display)
 {
     int n_mode;
     for (n_mode = 0; n_mode < out->num_modes; ++n_mode) {
         SDL_DisplayMode mode = {
             .format = SDL_PIXELFORMAT_RGB888,
             .w = out->modes[n_mode].horizontal_resolution,
             .h = out->modes[n_mode].vertical_resolution,
             .refresh_rate = out->modes[n_mode].refresh_rate,
             .driverdata = NULL
         };

         SDL_AddDisplayMode(display, &mode);
     }
 }

 static void
 MIR_InitDisplays(_THIS)
 {
     MIR_Data* mir_data = _this->driverdata;
     int d;

     MirDisplayConfiguration* display_config = MIR_mir_connection_create_display_config(mir_data->connection);

     for (d = 0; d < display_config->num_outputs; d++) {
         MirDisplayOutput const* out = display_config->outputs + d;

         SDL_VideoDisplay display;
         SDL_zero(display);

         if (out->used &&
             out->connected &&
             out->num_modes &&
             out->current_mode < out->num_modes) {

             MIR_SetCurrentDisplayMode(out, &display);
             MIR_AddAllModesFromDisplay(out, &display);

             SDL_AddVideoDisplay(&display);
         }
     }

     MIR_mir_display_config_destroy(display_config);
 }

 int
 MIR_VideoInit(_THIS)
 {
     MIR_Data* mir_data = _this->driverdata;

     mir_data->connection = MIR_mir_connect_sync(NULL, __PRETTY_FUNCTION__);

     if (!MIR_mir_connection_is_valid(mir_data->connection))
         return SDL_SetError("Failed to connect to the Mir Server");

     MIR_InitDisplays(_this);
     MIR_InitMouse();

     return 0;
 }

 void
 MIR_VideoQuit(_THIS)
 {
     MIR_Data* mir_data = _this->driverdata;

     MIR_FiniMouse();

     MIR_GL_DeleteContext(_this, NULL);
     MIR_GL_UnloadLibrary(_this);

     MIR_mir_connection_release(mir_data->connection);

     SDL_free(mir_data);
     _this->driverdata = NULL;
 }

 static int
 MIR_GetDisplayBounds(_THIS, SDL_VideoDisplay* display, SDL_Rect* rect)
 {
     MIR_Data* mir_data = _this->driverdata;
     int d;

     MirDisplayConfiguration* display_config = MIR_mir_connection_create_display_config(mir_data->connection);

     for (d = 0; d < display_config->num_outputs; d++) {
         MirDisplayOutput const* out = display_config->outputs + d;

         if (out->used &&
             out->connected &&
             out->num_modes &&
             out->current_mode < out->num_modes) {

             rect->x = out->position_x;
             rect->y = out->position_y;
             rect->w = out->modes->horizontal_resolution;
             rect->h = out->modes->vertical_resolution;
         }
     }

     MIR_mir_display_config_destroy(display_config);

     return 0;
 }

 static void
 MIR_GetDisplayModes(_THIS, SDL_VideoDisplay* sdl_display)
 {
 }

 static int
 MIR_SetDisplayMode(_THIS, SDL_VideoDisplay* sdl_display, SDL_DisplayMode* mode)
 {
     return 0;
 }

 #endif /* SDL_VIDEO_DRIVER_MIR */

 /* vi: set ts=4 sw=4 expandtab: */
	/*
	Simple DirectMedia Layer
	Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>

	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.
	*/

	/*
	Contributed by Brandon Schaefer, <brandon.schaefer@canonical.com>
	*/

	#include "../../SDL_internal.h"

	#if SDL_VIDEO_DRIVER_MIR

	#include "SDL_video.h"

	#include "SDL_mirframebuffer.h"
	#include "SDL_mirmouse.h"
	#include "SDL_miropengl.h"
	#include "SDL_mirvideo.h"
	#include "SDL_mirwindow.h"

	#include "SDL_mirdyn.h"

	#define MIR_DRIVER_NAME "mir"

	static int
	MIR_VideoInit(_THIS);

	static void
	MIR_VideoQuit(_THIS);

	static int
	MIR_GetDisplayBounds(_THIS, SDL_VideoDisplay* display, SDL_Rect* rect);

	static void
	MIR_GetDisplayModes(_THIS, SDL_VideoDisplay* sdl_display);

	static int
	MIR_SetDisplayMode(_THIS, SDL_VideoDisplay* sdl_display, SDL_DisplayMode* mode);

	static SDL_WindowShaper*
	MIR_CreateShaper(SDL_Window* window)
	{
	/* FIXME Im not sure if mir support this atm, will have to come back to this */
	return NULL;
	}

	static int
	MIR_SetWindowShape(SDL_WindowShaper* shaper, SDL_Surface* shape, SDL_WindowShapeMode* shape_mode)
	{
	return SDL_Unsupported();
	}

	static int
	MIR_ResizeWindowShape(SDL_Window* window)
	{
	return SDL_Unsupported();
	}

	static int
	MIR_Available()
	{
	int available = 0;

	if (SDL_MIR_LoadSymbols()) {
	/* !!! FIXME: try to make a MirConnection here. */
	available = 1;
	SDL_MIR_UnloadSymbols();

	}

	return available;
	}

	static void
	MIR_DeleteDevice(SDL_VideoDevice* device)
	{
	SDL_free(device);
	SDL_MIR_UnloadSymbols();
	}

	void
	MIR_PumpEvents(_THIS)
	{
	}

	static SDL_VideoDevice*
	MIR_CreateDevice(int device_index)
	{
	MIR_Data* mir_data;
	SDL_VideoDevice* device = NULL;

	if (!SDL_MIR_LoadSymbols()) {
	return NULL;
	}

	device = SDL_calloc(1, sizeof(SDL_VideoDevice));
	if (!device) {
	SDL_MIR_UnloadSymbols();
	SDL_OutOfMemory();
	return NULL;
	}

	mir_data = SDL_calloc(1, sizeof(MIR_Data));
	if (!mir_data) {
	SDL_free(device);
	SDL_MIR_UnloadSymbols();
	SDL_OutOfMemory();
	return NULL;
	}

	device->driverdata = mir_data;

	/* mirvideo */
	device->VideoInit = MIR_VideoInit;
	device->VideoQuit = MIR_VideoQuit;
	device->GetDisplayBounds = MIR_GetDisplayBounds;
	device->GetDisplayModes = MIR_GetDisplayModes;
	device->SetDisplayMode = MIR_SetDisplayMode;
	device->free = MIR_DeleteDevice;

	/* miropengles */
	device->GL_SwapWindow = MIR_GL_SwapWindow;
	device->GL_MakeCurrent = MIR_GL_MakeCurrent;
	device->GL_CreateContext = MIR_GL_CreateContext;
	device->GL_DeleteContext = MIR_GL_DeleteContext;
	device->GL_LoadLibrary = MIR_GL_LoadLibrary;
	device->GL_UnloadLibrary = MIR_GL_UnloadLibrary;
	device->GL_GetSwapInterval = MIR_GL_GetSwapInterval;
	device->GL_SetSwapInterval = MIR_GL_SetSwapInterval;
	device->GL_GetProcAddress = MIR_GL_GetProcAddress;

	/* mirwindow */
	device->CreateWindow = MIR_CreateWindow;
	device->DestroyWindow = MIR_DestroyWindow;
	device->GetWindowWMInfo = MIR_GetWindowWMInfo;
	device->SetWindowFullscreen = MIR_SetWindowFullscreen;
	device->MaximizeWindow = MIR_MaximizeWindow;
	device->MinimizeWindow = MIR_MinimizeWindow;
	device->RestoreWindow = MIR_RestoreWindow;

	device->CreateWindowFrom = NULL;
	device->SetWindowTitle = NULL;
	device->SetWindowIcon = NULL;
	device->SetWindowPosition = NULL;
	device->SetWindowSize = NULL;
	device->SetWindowMinimumSize = NULL;
	device->SetWindowMaximumSize = NULL;
	device->ShowWindow = NULL;
	device->HideWindow = NULL;
	device->RaiseWindow = NULL;
	device->SetWindowBordered = NULL;
	device->SetWindowGammaRamp = NULL;
	device->GetWindowGammaRamp = NULL;
	device->SetWindowGrab = NULL;
	device->OnWindowEnter = NULL;

	/* mirframebuffer */
	device->CreateWindowFramebuffer = MIR_CreateWindowFramebuffer;
	device->UpdateWindowFramebuffer = MIR_UpdateWindowFramebuffer;
	device->DestroyWindowFramebuffer = MIR_DestroyWindowFramebuffer;

	device->shape_driver.CreateShaper = MIR_CreateShaper;
	device->shape_driver.SetWindowShape = MIR_SetWindowShape;
	device->shape_driver.ResizeWindowShape = MIR_ResizeWindowShape;

	device->PumpEvents = MIR_PumpEvents;

	device->SuspendScreenSaver = NULL;

	device->StartTextInput = NULL;
	device->StopTextInput = NULL;
	device->SetTextInputRect = NULL;

	device->HasScreenKeyboardSupport = NULL;
	device->ShowScreenKeyboard = NULL;
	device->HideScreenKeyboard = NULL;
	device->IsScreenKeyboardShown = NULL;

	device->SetClipboardText = NULL;
	device->GetClipboardText = NULL;
	device->HasClipboardText = NULL;

	device->ShowMessageBox = NULL;

	return device;
	}

	VideoBootStrap MIR_bootstrap = {
	MIR_DRIVER_NAME, "SDL Mir video driver",
	MIR_Available, MIR_CreateDevice
	};

	static void
	MIR_SetCurrentDisplayMode(MirDisplayOutput const* out, SDL_VideoDisplay* display)
	{
	SDL_DisplayMode mode = {
	.format = SDL_PIXELFORMAT_RGB888,
	.w = out->modes[out->current_mode].horizontal_resolution,
	.h = out->modes[out->current_mode].vertical_resolution,
	.refresh_rate = out->modes[out->current_mode].refresh_rate,
	.driverdata = NULL
	};

	display->desktop_mode = mode;
	display->current_mode = mode;
	}

	static void
	MIR_AddAllModesFromDisplay(MirDisplayOutput const* out, SDL_VideoDisplay* display)
	{
	int n_mode;
	for (n_mode = 0; n_mode < out->num_modes; ++n_mode) {
	SDL_DisplayMode mode = {
	.format = SDL_PIXELFORMAT_RGB888,
	.w = out->modes[n_mode].horizontal_resolution,
	.h = out->modes[n_mode].vertical_resolution,
	.refresh_rate = out->modes[n_mode].refresh_rate,
	.driverdata = NULL
	};

	SDL_AddDisplayMode(display, &mode);
	}
	}

	static void
	MIR_InitDisplays(_THIS)
	{
	MIR_Data* mir_data = _this->driverdata;
	int d;

	MirDisplayConfiguration* display_config = MIR_mir_connection_create_display_config(mir_data->connection);

	for (d = 0; d < display_config->num_outputs; d++) {
	MirDisplayOutput const* out = display_config->outputs + d;

	SDL_VideoDisplay display;
	SDL_zero(display);

	if (out->used &&
	out->connected &&
	out->num_modes &&
	out->current_mode < out->num_modes) {

	MIR_SetCurrentDisplayMode(out, &display);
	MIR_AddAllModesFromDisplay(out, &display);

	SDL_AddVideoDisplay(&display);
	}
	}

	MIR_mir_display_config_destroy(display_config);
	}

	int
	MIR_VideoInit(_THIS)
	{
	MIR_Data* mir_data = _this->driverdata;

	mir_data->connection = MIR_mir_connect_sync(NULL, __PRETTY_FUNCTION__);

	if (!MIR_mir_connection_is_valid(mir_data->connection))
	return SDL_SetError("Failed to connect to the Mir Server");

	MIR_InitDisplays(_this);
	MIR_InitMouse();

	return 0;
	}

	void
	MIR_VideoQuit(_THIS)
	{
	MIR_Data* mir_data = _this->driverdata;

	MIR_FiniMouse();

	MIR_GL_DeleteContext(_this, NULL);
	MIR_GL_UnloadLibrary(_this);

	MIR_mir_connection_release(mir_data->connection);

	SDL_free(mir_data);
	_this->driverdata = NULL;
	}

	static int
	MIR_GetDisplayBounds(_THIS, SDL_VideoDisplay* display, SDL_Rect* rect)
	{
	MIR_Data* mir_data = _this->driverdata;
	int d;

	MirDisplayConfiguration* display_config = MIR_mir_connection_create_display_config(mir_data->connection);

	for (d = 0; d < display_config->num_outputs; d++) {
	MirDisplayOutput const* out = display_config->outputs + d;

	if (out->used &&
	out->connected &&
	out->num_modes &&
	out->current_mode < out->num_modes) {

	rect->x = out->position_x;
	rect->y = out->position_y;
	rect->w = out->modes->horizontal_resolution;
	rect->h = out->modes->vertical_resolution;
	}
	}

	MIR_mir_display_config_destroy(display_config);

	return 0;
	}

	static void
	MIR_GetDisplayModes(_THIS, SDL_VideoDisplay* sdl_display)
	{
	}

	static int
	MIR_SetDisplayMode(_THIS, SDL_VideoDisplay* sdl_display, SDL_DisplayMode* mode)
	{
	return 0;
	}

	#endif /* SDL_VIDEO_DRIVER_MIR */

	/* vi: set ts=4 sw=4 expandtab: */