| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2016 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 "../../events/SDL_mouse_c.h" |
| #include "../SDL_sysvideo.h" |
| #include "SDL_assert.h" |
| |
| #include "SDL_mirdyn.h" |
| |
| #include "SDL_mirvideo.h" |
| #include "SDL_mirmouse.h" |
| #include "SDL_mirwindow.h" |
| |
| typedef struct |
| { |
| MirCursorConfiguration* conf; |
| MirBufferStream* stream; |
| } MIR_Cursor; |
| |
| static SDL_Cursor* |
| MIR_CreateDefaultCursor() |
| { |
| SDL_Cursor* cursor; |
| |
| cursor = SDL_calloc(1, sizeof(SDL_Cursor)); |
| if (cursor) { |
| |
| MIR_Cursor* mir_cursor = SDL_calloc(1, sizeof(MIR_Cursor)); |
| if (mir_cursor) { |
| mir_cursor->conf = NULL; |
| mir_cursor->stream = NULL; |
| cursor->driverdata = mir_cursor; |
| } |
| else { |
| SDL_OutOfMemory(); |
| SDL_free(cursor); |
| cursor = NULL; |
| } |
| } |
| else { |
| SDL_OutOfMemory(); |
| } |
| |
| return cursor; |
| } |
| |
| static void |
| CopySurfacePixelsToMirStream(SDL_Surface* surface, MirBufferStream* stream) |
| { |
| char* dest, *pixels; |
| int i, s_w, s_h, r_stride, p_stride, bytes_per_pixel, bytes_per_row; |
| |
| MirGraphicsRegion region; |
| MIR_mir_buffer_stream_get_graphics_region(stream, ®ion); |
| |
| s_w = surface->w; |
| s_h = surface->h; |
| |
| bytes_per_pixel = surface->format->BytesPerPixel; |
| bytes_per_row = bytes_per_pixel * s_w; |
| |
| dest = region.vaddr; |
| pixels = (char*)surface->pixels; |
| |
| r_stride = region.stride; |
| p_stride = surface->pitch; |
| |
| for (i = 0; i < s_h; i++) |
| { |
| SDL_memcpy(dest, pixels, bytes_per_row); |
| dest += r_stride; |
| pixels += p_stride; |
| } |
| } |
| |
| static SDL_Cursor* |
| MIR_CreateCursor(SDL_Surface* surface, int hot_x, int hot_y) |
| { |
| MirCursorConfiguration* conf; |
| MirBufferStream* stream; |
| |
| int s_w = surface->w; |
| int s_h = surface->h; |
| |
| MIR_Data* mir_data = (MIR_Data*)SDL_GetVideoDevice()->driverdata; |
| SDL_Cursor* cursor = MIR_CreateDefaultCursor(); |
| MIR_Cursor* mir_cursor; |
| |
| if (!cursor) { |
| return NULL; |
| } |
| |
| mir_cursor = (MIR_Cursor*)cursor->driverdata; |
| |
| stream = MIR_mir_connection_create_buffer_stream_sync(mir_data->connection, |
| s_w, s_h, mir_data->pixel_format, |
| mir_buffer_usage_software); |
| |
| conf = MIR_mir_cursor_configuration_from_buffer_stream(stream, hot_x, hot_y); |
| |
| CopySurfacePixelsToMirStream(surface, stream); |
| MIR_mir_buffer_stream_swap_buffers_sync(stream); |
| |
| mir_cursor->conf = conf; |
| mir_cursor->stream = stream; |
| |
| return cursor; |
| } |
| |
| static SDL_Cursor* |
| MIR_CreateSystemCursor(SDL_SystemCursor id) |
| { |
| char const* cursor_name = NULL; |
| SDL_Cursor* cursor = MIR_CreateDefaultCursor(); |
| MIR_Cursor* mir_cursor = (MIR_Cursor*)cursor->driverdata; |
| |
| if (!cursor) { |
| return NULL; |
| } |
| |
| switch(id) { |
| case SDL_SYSTEM_CURSOR_ARROW: |
| cursor_name = MIR_mir_arrow_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_IBEAM: |
| cursor_name = MIR_mir_caret_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_WAIT: |
| cursor_name = MIR_mir_busy_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_CROSSHAIR: |
| /* Unsupported */ |
| cursor_name = MIR_mir_arrow_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_WAITARROW: |
| cursor_name = MIR_mir_busy_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZENWSE: |
| cursor_name = MIR_mir_omnidirectional_resize_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZENESW: |
| cursor_name = MIR_mir_omnidirectional_resize_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZEWE: |
| cursor_name = MIR_mir_horizontal_resize_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZENS: |
| cursor_name = MIR_mir_vertical_resize_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZEALL: |
| cursor_name = MIR_mir_omnidirectional_resize_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_NO: |
| /* Unsupported */ |
| cursor_name = MIR_mir_closed_hand_cursor_name; |
| break; |
| case SDL_SYSTEM_CURSOR_HAND: |
| cursor_name = MIR_mir_open_hand_cursor_name; |
| break; |
| default: |
| SDL_assert(0); |
| return NULL; |
| } |
| |
| mir_cursor->conf = MIR_mir_cursor_configuration_from_name(cursor_name); |
| |
| return cursor; |
| } |
| |
| static void |
| MIR_FreeCursor(SDL_Cursor* cursor) |
| { |
| if (cursor) { |
| |
| if (cursor->driverdata) { |
| MIR_Cursor* mir_cursor = (MIR_Cursor*)cursor->driverdata; |
| |
| if (mir_cursor->conf) |
| MIR_mir_cursor_configuration_destroy(mir_cursor->conf); |
| if (mir_cursor->stream) |
| MIR_mir_buffer_stream_release_sync(mir_cursor->stream); |
| |
| SDL_free(mir_cursor); |
| } |
| |
| SDL_free(cursor); |
| } |
| } |
| |
| static int |
| MIR_ShowCursor(SDL_Cursor* cursor) |
| { |
| MIR_Data* mir_data = (MIR_Data*)SDL_GetVideoDevice()->driverdata; |
| MIR_Window* mir_window = mir_data->current_window; |
| |
| if (cursor && cursor->driverdata) { |
| if (mir_window && MIR_mir_surface_is_valid(mir_window->surface)) { |
| MIR_Cursor* mir_cursor = (MIR_Cursor*)cursor->driverdata; |
| |
| if (mir_cursor->conf) { |
| MIR_mir_surface_configure_cursor(mir_window->surface, mir_cursor->conf); |
| } |
| } |
| } |
| else if(mir_window && MIR_mir_surface_is_valid(mir_window->surface)) { |
| MIR_mir_surface_configure_cursor(mir_window->surface, NULL); |
| } |
| |
| return 0; |
| } |
| |
| static void |
| MIR_WarpMouse(SDL_Window* window, int x, int y) |
| { |
| SDL_Unsupported(); |
| } |
| |
| static int |
| MIR_WarpMouseGlobal(int x, int y) |
| { |
| return SDL_Unsupported(); |
| } |
| |
| static int |
| MIR_SetRelativeMouseMode(SDL_bool enabled) |
| { |
| return 0; |
| } |
| |
| /* TODO Actually implement the cursor, need to wait for mir support */ |
| void |
| MIR_InitMouse() |
| { |
| SDL_Mouse* mouse = SDL_GetMouse(); |
| |
| mouse->CreateCursor = MIR_CreateCursor; |
| mouse->ShowCursor = MIR_ShowCursor; |
| mouse->FreeCursor = MIR_FreeCursor; |
| mouse->WarpMouse = MIR_WarpMouse; |
| mouse->WarpMouseGlobal = MIR_WarpMouseGlobal; |
| mouse->CreateSystemCursor = MIR_CreateSystemCursor; |
| mouse->SetRelativeMouseMode = MIR_SetRelativeMouseMode; |
| |
| SDL_SetDefaultCursor(MIR_CreateDefaultCursor()); |
| } |
| |
| void |
| MIR_FiniMouse() |
| { |
| SDL_Mouse* mouse = SDL_GetMouse(); |
| |
| MIR_FreeCursor(mouse->def_cursor); |
| mouse->def_cursor = NULL; |
| |
| mouse->CreateCursor = NULL; |
| mouse->ShowCursor = NULL; |
| mouse->FreeCursor = NULL; |
| mouse->WarpMouse = NULL; |
| mouse->CreateSystemCursor = NULL; |
| mouse->SetRelativeMouseMode = NULL; |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_MIR */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
| |