diff options
Diffstat (limited to 'client/SDL/sdl_pointer.cpp')
| -rw-r--r-- | client/SDL/sdl_pointer.cpp | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/client/SDL/sdl_pointer.cpp b/client/SDL/sdl_pointer.cpp new file mode 100644 index 0000000..ad8a4f3 --- /dev/null +++ b/client/SDL/sdl_pointer.cpp @@ -0,0 +1,197 @@ +/** + * FreeRDP: A Remote Desktop Protocol Implementation + * Wayland Mouse Pointer + * + * Copyright 2023 Armin Novak <armin.novak@thincast.com> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <freerdp/config.h> + +#include <freerdp/gdi/gdi.h> + +#include "sdl_pointer.hpp" +#include "sdl_freerdp.hpp" +#include "sdl_touch.hpp" +#include "sdl_utils.hpp" + +#include <SDL_mouse.h> + +#define TAG CLIENT_TAG("SDL.pointer") + +typedef struct +{ + rdpPointer pointer; + SDL_Cursor* cursor; + SDL_Surface* image; + size_t size; + void* data; +} sdlPointer; + +static BOOL sdl_Pointer_New(rdpContext* context, rdpPointer* pointer) +{ + auto ptr = reinterpret_cast<sdlPointer*>(pointer); + + WINPR_ASSERT(context); + if (!ptr) + return FALSE; + + rdpGdi* gdi = context->gdi; + WINPR_ASSERT(gdi); + + ptr->size = 4ull * pointer->width * pointer->height; + ptr->data = winpr_aligned_malloc(ptr->size, 16); + + if (!ptr->data) + return FALSE; + + auto data = static_cast<BYTE*>(ptr->data); + if (!freerdp_image_copy_from_pointer_data( + data, gdi->dstFormat, 0, 0, 0, pointer->width, pointer->height, pointer->xorMaskData, + pointer->lengthXorMask, pointer->andMaskData, pointer->lengthAndMask, pointer->xorBpp, + &context->gdi->palette)) + { + winpr_aligned_free(ptr->data); + return FALSE; + } + + return TRUE; +} + +static void sdl_Pointer_Clear(sdlPointer* ptr) +{ + WINPR_ASSERT(ptr); + SDL_FreeCursor(ptr->cursor); + SDL_FreeSurface(ptr->image); + ptr->cursor = nullptr; + ptr->image = nullptr; +} + +static void sdl_Pointer_Free(rdpContext* context, rdpPointer* pointer) +{ + auto ptr = reinterpret_cast<sdlPointer*>(pointer); + WINPR_UNUSED(context); + + if (ptr) + { + sdl_Pointer_Clear(ptr); + winpr_aligned_free(ptr->data); + ptr->data = nullptr; + } +} + +static BOOL sdl_Pointer_SetDefault(rdpContext* context) +{ + WINPR_UNUSED(context); + + return sdl_push_user_event(SDL_USEREVENT_POINTER_DEFAULT); +} + +static BOOL sdl_Pointer_Set(rdpContext* context, rdpPointer* pointer) +{ + auto sdl = get_context(context); + + return sdl_push_user_event(SDL_USEREVENT_POINTER_SET, pointer, sdl); +} + +BOOL sdl_Pointer_Set_Process(SDL_UserEvent* uptr) +{ + INT32 w = 0; + INT32 h = 0; + INT32 x = 0; + INT32 y = 0; + INT32 sw = 0; + INT32 sh = 0; + + WINPR_ASSERT(uptr); + + auto sdl = static_cast<SdlContext*>(uptr->data2); + WINPR_ASSERT(sdl); + + auto context = sdl->context(); + auto ptr = static_cast<sdlPointer*>(uptr->data1); + WINPR_ASSERT(ptr); + + rdpPointer* pointer = &ptr->pointer; + + rdpGdi* gdi = context->gdi; + WINPR_ASSERT(gdi); + + x = static_cast<INT32>(pointer->xPos); + y = static_cast<INT32>(pointer->yPos); + sw = w = static_cast<INT32>(pointer->width); + sh = h = static_cast<INT32>(pointer->height); + + SDL_Window* window = SDL_GetMouseFocus(); + if (!window) + return sdl_Pointer_SetDefault(context); + + const Uint32 id = SDL_GetWindowID(window); + + if (!sdl_scale_coordinates(sdl, id, &x, &y, FALSE, FALSE) || + !sdl_scale_coordinates(sdl, id, &sw, &sh, FALSE, FALSE)) + return FALSE; + + sdl_Pointer_Clear(ptr); + + const DWORD bpp = FreeRDPGetBitsPerPixel(gdi->dstFormat); + ptr->image = + SDL_CreateRGBSurfaceWithFormat(0, sw, sh, static_cast<int>(bpp), sdl->sdl_pixel_format); + if (!ptr->image) + return FALSE; + + SDL_LockSurface(ptr->image); + auto pixels = static_cast<BYTE*>(ptr->image->pixels); + auto data = static_cast<const BYTE*>(ptr->data); + const BOOL rc = freerdp_image_scale( + pixels, gdi->dstFormat, static_cast<UINT32>(ptr->image->pitch), 0, 0, + static_cast<UINT32>(ptr->image->w), static_cast<UINT32>(ptr->image->h), data, + gdi->dstFormat, 0, 0, 0, static_cast<UINT32>(w), static_cast<UINT32>(h)); + SDL_UnlockSurface(ptr->image); + if (!rc) + return FALSE; + + ptr->cursor = SDL_CreateColorCursor(ptr->image, x, y); + if (!ptr->cursor) + return FALSE; + + SDL_SetCursor(ptr->cursor); + SDL_ShowCursor(SDL_ENABLE); + return TRUE; +} + +static BOOL sdl_Pointer_SetNull(rdpContext* context) +{ + WINPR_UNUSED(context); + + return sdl_push_user_event(SDL_USEREVENT_POINTER_NULL); +} + +static BOOL sdl_Pointer_SetPosition(rdpContext* context, UINT32 x, UINT32 y) +{ + auto sdl = get_context(context); + WINPR_ASSERT(sdl); + + return sdl_push_user_event(SDL_USEREVENT_POINTER_POSITION, x, y); +} + +BOOL sdl_register_pointer(rdpGraphics* graphics) +{ + const rdpPointer pointer = { sizeof(sdlPointer), sdl_Pointer_New, + sdl_Pointer_Free, sdl_Pointer_Set, + sdl_Pointer_SetNull, sdl_Pointer_SetDefault, + sdl_Pointer_SetPosition, 0 }; + graphics_register_pointer(graphics, &pointer); + return TRUE; +} |