/*

Simple DirectMedia Layer

Copyright (C) 1997-2017 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_egl_c.h"

#include "../SDL_sysvideo.h"

#include "../../events/SDL_keyboard_c.h"

#include "SDL_mirevents.h"

#include "SDL_mirwindow.h"

#include "SDL_mirdyn.h"

int

IsSurfaceValid(MIR_Window* mir_window)

{

if (!MIR_mir_window_is_valid(mir_window->window)) {

const char* error = MIR_mir_window_get_error_message(mir_window->window);

return SDL_SetError("Failed to created a mir surface: %s", error);

}

return 0;

}

MirPixelFormat

FindValidPixelFormat(MIR_Data* mir_data)

{

unsigned int pf_size = 32;

unsigned int valid_formats;

unsigned int f;

MirPixelFormat formats[pf_size];

MIR_mir_connection_get_available_surface_formats(mir_data->connection, formats,

pf_size, &valid_formats);

for (f = 0; f < valid_formats; f++) {

MirPixelFormat cur_pf = formats[f];

if (cur_pf == mir_pixel_format_abgr_8888 ||

cur_pf == mir_pixel_format_xbgr_8888 ||

cur_pf == mir_pixel_format_argb_8888 ||

cur_pf == mir_pixel_format_xrgb_8888) {

return cur_pf;

}

}

return mir_pixel_format_invalid;

}

int

MIR_CreateWindow(_THIS, SDL_Window* window)

{

MIR_Window* mir_window;

MIR_Data* mir_data;

MirPixelFormat pixel_format;

MirBufferUsage buffer_usage;

MirWindowSpec* spec;

mir_window = SDL_calloc(1, sizeof(MIR_Window));

if (!mir_window)

return SDL_OutOfMemory();

mir_data = _this->driverdata;

window->driverdata = mir_window;

if (window->x == SDL_WINDOWPOS_UNDEFINED)

window->x = 0;

if (window->y == SDL_WINDOWPOS_UNDEFINED)

window->y = 0;

mir_window->mir_data = mir_data;

mir_window->sdl_window = window;

if (window->flags & SDL_WINDOW_OPENGL) {

pixel_format = MIR_mir_connection_get_egl_pixel_format(mir_data->connection,

_this->egl_data->egl_display,

_this->egl_data->egl_config);

}

else {

pixel_format = FindValidPixelFormat(mir_data);

}

mir_data->pixel_format = pixel_format;

if (pixel_format == mir_pixel_format_invalid) {

return SDL_SetError("Failed to find a valid pixel format.");

}

buffer_usage = mir_buffer_usage_hardware;

if (mir_data->software)

buffer_usage = mir_buffer_usage_software;

spec = MIR_mir_create_normal_window_spec(mir_data->connection,

window->w,

window->h);

MIR_mir_window_spec_set_buffer_usage(spec, buffer_usage);

MIR_mir_window_spec_set_name(spec, "Mir surface");

MIR_mir_window_spec_set_pixel_format(spec, pixel_format);

if (window->flags & SDL_WINDOW_INPUT_FOCUS)

SDL_SetKeyboardFocus(window);

mir_window->window = MIR_mir_create_window_sync(spec);

MIR_mir_window_set_event_handler(mir_window->window, MIR_HandleEvent, window);

MIR_mir_window_spec_release(spec);

if (!MIR_mir_window_is_valid(mir_window->window)) {

return SDL_SetError("Failed to created a mir surface: %s",

MIR_mir_window_get_error_message(mir_window->window));

}

if (window->flags & SDL_WINDOW_OPENGL) {

EGLNativeWindowType egl_native_window =

(EGLNativeWindowType)MIR_mir_buffer_stream_get_egl_native_window(

MIR_mir_window_get_buffer_stream(mir_window->window));

mir_window->egl_surface = SDL_EGL_CreateSurface(_this, egl_native_window);

if (mir_window->egl_surface == EGL_NO_SURFACE) {

return SDL_SetError("Failed to created a window surface %p",

_this->egl_data->egl_display);

}

}

else {

mir_window->egl_surface = EGL_NO_SURFACE;

}

mir_data->current_window = mir_window;

return 0;

}

void

MIR_DestroyWindow(_THIS, SDL_Window* window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

if (mir_data) {

SDL_EGL_DestroySurface(_this, mir_window->egl_surface);

MIR_mir_window_release_sync(mir_window->window);

mir_data->current_window = NULL;

SDL_free(mir_window);

}

window->driverdata = NULL;

}

SDL_bool

MIR_GetWindowWMInfo(_THIS, SDL_Window* window, SDL_SysWMinfo* info)

{

if (info->version.major == SDL_MAJOR_VERSION &&

info->version.minor == SDL_MINOR_VERSION) {

MIR_Window* mir_window = window->driverdata;

info->subsystem = SDL_SYSWM_MIR;

info->info.mir.connection = mir_window->mir_data->connection;

// Cannot change this to window due to it being in the public API

info->info.mir.surface = mir_window->window;

return SDL_TRUE;

}

return SDL_FALSE;

}

void

MIR_SetWindowFullscreen(_THIS, SDL_Window* window,

SDL_VideoDisplay* display,

SDL_bool fullscreen)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirWindowSpec* spec;

MirWindowState state;

if (IsSurfaceValid(mir_window) < 0)

return;

if (fullscreen) {

state = mir_window_state_fullscreen;

} else {

state = mir_window_state_restored;

}

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_state(spec, state);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_MaximizeWindow(_THIS, SDL_Window* window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirWindowSpec* spec;

if (IsSurfaceValid(mir_window) < 0)

return;

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_state(spec, mir_window_state_maximized);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_MinimizeWindow(_THIS, SDL_Window* window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirWindowSpec* spec;

if (IsSurfaceValid(mir_window) < 0)

return;

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_state(spec, mir_window_state_minimized);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_RestoreWindow(_THIS, SDL_Window * window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirWindowSpec* spec;

if (IsSurfaceValid(mir_window) < 0)

return;

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_state(spec, mir_window_state_restored);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_HideWindow(_THIS, SDL_Window* window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirWindowSpec* spec;

if (IsSurfaceValid(mir_window) < 0)

return;

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_state(spec, mir_window_state_hidden);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_SetWindowSize(_THIS, SDL_Window* window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirWindowSpec* spec;

if (IsSurfaceValid(mir_window) < 0)

return;

/* You cannot set the x/y of a mir window! So only update w/h */

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_width (spec, window->w);

MIR_mir_window_spec_set_height(spec, window->h);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_SetWindowMinimumSize(_THIS, SDL_Window* window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirWindowSpec* spec;

if (IsSurfaceValid(mir_window) < 0)

return;

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_width (spec, window->min_w);

MIR_mir_window_spec_set_height(spec, window->min_h);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_SetWindowMaximumSize(_THIS, SDL_Window* window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirWindowSpec* spec;

if (IsSurfaceValid(mir_window) < 0)

return;

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_max_width(spec, window->max_w);

MIR_mir_window_spec_set_max_height(spec, window->max_h);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_SetWindowTitle(_THIS, SDL_Window* window)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

char const* title = window->title ? window->title : "";

MirWindowSpec* spec;

if (IsSurfaceValid(mir_window) < 0)

return;

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_name(spec, title);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

void

MIR_SetWindowGrab(_THIS, SDL_Window* window, SDL_bool grabbed)

{

MIR_Data* mir_data = _this->driverdata;

MIR_Window* mir_window = window->driverdata;

MirPointerConfinementState confined = mir_pointer_unconfined;

MirWindowSpec* spec;

if (grabbed)

confined = mir_pointer_confined_to_window;

spec = MIR_mir_create_window_spec(mir_data->connection);

MIR_mir_window_spec_set_pointer_confinement(spec, confined);

MIR_mir_window_apply_spec(mir_window->window, spec);

MIR_mir_window_spec_release(spec);

}

int

MIR_SetWindowGammaRamp(_THIS, SDL_Window* window, Uint16 const* ramp)

{

MirOutput* output = SDL_GetDisplayForWindow(window)->driverdata;

Uint32 ramp_size = 256;

// FIXME Need to apply the changes to the output, once that public API function is around

if (MIR_mir_output_is_gamma_supported(output) == mir_output_gamma_supported) {

MIR_mir_output_set_gamma(output,

ramp + ramp_size * 0,

ramp + ramp_size * 1,

ramp + ramp_size * 2,

ramp_size);

return 0;

}

return -1;

}

int

MIR_GetWindowGammaRamp(_THIS, SDL_Window* window, Uint16* ramp)

{

MirOutput* output = SDL_GetDisplayForWindow(window)->driverdata;

Uint32 ramp_size = 256;

if (MIR_mir_output_is_gamma_supported(output) == mir_output_gamma_supported) {

if (MIR_mir_output_get_gamma_size(output) == ramp_size) {

MIR_mir_output_get_gamma(output,

ramp + ramp_size * 0,

ramp + ramp_size * 1,

ramp + ramp_size * 2,

ramp_size);

return 0;

}

}

return -1;

}

#endif /* SDL_VIDEO_DRIVER_MIR */

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