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[wip, win32 surface sharing] simplifyin the surface sharing API

This commit is contained in:
martinfouilleul 2023-03-02 19:21:39 +01:00
parent ee87976429
commit ac00cc9def
9 changed files with 166 additions and 197 deletions
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15
examples/surface_sharing/main.c
View File

@ -100,12 +100,10 @@ int child_main(int writeFd)
mp_rect rect = {.x = 100, .y = 100, .w = 800, .h = 600};
mp_window window = mp_window_create(rect, "test", 0);
//NOTE: create surface server
mg_surface_server server = mg_surface_server_create();
mg_surface_connection_id connectionID = mg_surface_server_id(server);
//NOTE: create surface
mg_surface surface = mg_surface_create_for_sharing(server, MG_BACKEND_GLES);
mg_surface surface = mg_surface_create_remote(800, 600, MG_BACKEND_GLES);
mg_surface_id connectionID = mg_surface_remote_id(surface);
mg_surface_prepare(surface);
//NOTE: init shader and gl state
@ -232,8 +230,7 @@ int main(int argc, char** argv)
mp_window window = mp_window_create(rect, "test", 0);
//NOTE: create surface client
mg_surface surface = mg_surface_client_create_for_window(window);
mg_surface surface = mg_surface_create_host(window);
//NOTE setup descriptors
int fileDesc[2];
@ -248,12 +245,12 @@ int main(int argc, char** argv)
process_id child = spawn_child(args[0], args);
//NOTE: read the connection id
mg_surface_connection_id connectionID = 0;
mg_surface_id connectionID = 0;
read(fileDesc[0], &connectionID, sizeof(connectionID));
printf("received child connection id %llu\n", connectionID);
//NOTE: connect the client
mg_surface_client_connect(surface, connectionID);
mg_surface_host_connect(surface, connectionID);
//NOTE: show the window
mp_window_bring_to_front(window);

19
src/egl_surface.c
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@ -120,6 +120,13 @@ void* mg_egl_surface_native_layer(mg_surface_data* interface)
return(mp_layer_native_surface(&surface->layer));
}
mg_surface_id mg_egl_surface_remote_id(mg_surface_data* interface)
{
mg_egl_surface* surface = (mg_egl_surface*)interface;
//////////WARN: not portable, just for testing
return((mg_surface_id)surface->layer.hWnd);
}
//////////////////////////
// PIGMODE
//////////////////////////
@ -127,6 +134,7 @@ void* mg_egl_surface_native_layer(mg_surface_data* interface)
void mg_egl_surface_init_for_native(mg_egl_surface* surface, void* nativeSurface)
{
surface->interface.backend = MG_BACKEND_GLES;
surface->interface.destroy = mg_egl_surface_destroy;
surface->interface.prepare = mg_egl_surface_prepare;
surface->interface.present = mg_egl_surface_present;
@ -137,6 +145,7 @@ void mg_egl_surface_init_for_native(mg_egl_surface* surface, void* nativeSurface
surface->interface.getHidden = mg_egl_surface_get_hidden;
surface->interface.setHidden = mg_egl_surface_set_hidden;
surface->interface.nativeLayer = mg_egl_surface_native_layer;
surface->interface.remoteId = mg_egl_surface_remote_id;
EGLAttrib displayAttribs[] = {
EGL_PLATFORM_ANGLE_TYPE_ANGLE, MG_EGL_PLATFORM_ANGLE_TYPE,
@ -185,21 +194,19 @@ void mg_egl_surface_init_for_native(mg_egl_surface* surface, void* nativeSurface
eglSwapInterval(surface->eglDisplay, 1);
}
mg_surface_data* mg_egl_surface_create_for_sharing(mg_surface_server handle)
mg_surface_data* mg_egl_surface_create_for_sharing(u32 width, u32 height)
{
mg_egl_surface* surface = 0;
mg_surface_server_data* server = mg_surface_server_data_from_handle(handle);
if(server)
{
surface = malloc_type(mg_egl_surface);
if(surface)
{
memset(surface, 0, sizeof(mg_egl_surface));
surface->layer = server->layer;
mp_layer_init_for_sharing(&surface->layer, width, height);
mg_egl_surface_init_for_native(surface, mp_layer_native_surface(&surface->layer));
}
}
return((mg_surface_data*)surface);
}

2
src/egl_surface.h
View File

@ -13,6 +13,6 @@
#include"mp_app.h"
mg_surface_data* mg_egl_surface_create_for_window(mp_window window);
mg_surface_data* mg_egl_surface_create_for_sharing(mg_surface_server handle);
mg_surface_data* mg_egl_surface_create_for_sharing(u32 width, u32 height);
#endif // __EGL_SURFACE_H_

23
src/graphics.c
View File

@ -459,7 +459,7 @@ mg_surface mg_surface_create_for_window(mp_window window, mg_backend_id backend)
return(surfaceHandle);
}
mg_surface mg_surface_create_for_sharing(mg_surface_server server, mg_backend_id backend)
mg_surface mg_surface_create_remote(u32 width, u32 height, mg_backend_id backend)
{
if(__mgData.init)
{
@ -472,7 +472,7 @@ mg_surface mg_surface_create_for_sharing(mg_surface_server server, mg_backend_id
{
#if MG_COMPILE_BACKEND_GLES
case MG_BACKEND_GLES:
surface = mg_egl_surface_create_for_sharing(server);
surface = mg_egl_surface_create_for_sharing(width, height);
break;
#endif
@ -484,7 +484,26 @@ mg_surface mg_surface_create_for_sharing(mg_surface_server server, mg_backend_id
surfaceHandle = mg_surface_handle_alloc(surface);
}
return(surfaceHandle);
}
mg_surface_id mg_surface_remote_id(mg_surface handle)
{
mg_surface_id remoteId = 0;
mg_surface_data* surface = mg_surface_data_from_handle(handle);
if(surface && surface->remoteId)
{
remoteId = surface->remoteId(surface);
}
return(remoteId);
}
void mg_surface_host_connect(mg_surface handle, mg_surface_id remoteID)
{
mg_surface_data* surface = mg_surface_data_from_handle(handle);
if(surface && surface->connect)
{
surface->connect(surface, remoteID);
}
}
void mg_surface_destroy(mg_surface handle)

18
src/graphics.h
View File

@ -102,21 +102,13 @@ MP_API void mg_surface_set_frame(mg_surface surface, mp_rect frame);
MP_API bool mg_surface_get_hidden(mg_surface surface);
MP_API void mg_surface_set_hidden(mg_surface surface, bool hidden);
//------------------------------------------------------------------------------------------
//NOTE(martin): surface sharing
//------------------------------------------------------------------------------------------
typedef u64 mg_surface_id;
typedef struct mg_surface_server { u64 h; } mg_surface_server;
typedef u64 mg_surface_connection_id;
MP_API mg_surface_server mg_surface_server_create(void);
MP_API void mg_surface_server_destroy(mg_surface_server server);
MP_API mg_surface_connection_id mg_surface_server_id(mg_surface_server server);
MP_API mg_surface mg_surface_create_for_sharing(mg_surface_server server, mg_backend_id backend);
MP_API mg_surface mg_surface_client_create_for_window(mp_window window);
MP_API void mg_surface_client_connect(mg_surface surface, mg_surface_connection_id id);
MP_API mg_surface mg_surface_create_remote(u32 width, u32 height, mg_backend_id backend);
MP_API mg_surface mg_surface_create_host(mp_window window);
MP_API mg_surface_id mg_surface_remote_id(mg_surface surface);
MP_API void mg_surface_host_connect(mg_surface surface, mg_surface_id remoteId);
//------------------------------------------------------------------------------------------
//NOTE(martin): graphics canvas structs

12
src/graphics_internal.h
View File

@ -15,14 +15,6 @@
extern "C" {
#endif
typedef struct mg_surface_server_data
{
mp_layer layer;
} mg_surface_server_data;
mg_surface_server_data* mg_surface_server_data_from_handle(mg_surface_server handle);
//---------------------------------------------------------------
// surface interface
//---------------------------------------------------------------
@ -38,6 +30,8 @@ typedef void (*mg_surface_set_frame_proc)(mg_surface_data* surface, mp_rect fram
typedef bool (*mg_surface_get_hidden_proc)(mg_surface_data* surface);
typedef void (*mg_surface_set_hidden_proc)(mg_surface_data* surface, bool hidden);
typedef void* (*mg_surface_native_layer_proc)(mg_surface_data* surface);
typedef mg_surface_id (*mg_surface_remote_id_proc)(mg_surface_data* surface);
typedef void (*mg_surface_connect_proc)(mg_surface_data* surface, mg_surface_id remoteId);
typedef struct mg_surface_data
{
@ -53,6 +47,8 @@ typedef struct mg_surface_data
mg_surface_get_hidden_proc getHidden;
mg_surface_set_hidden_proc setHidden;
mg_surface_native_layer_proc nativeLayer;
mg_surface_remote_id_proc remoteId;
mg_surface_connect_proc connect;
} mg_surface_data;
mg_surface mg_surface_alloc_handle(mg_surface_data* surface);

17
src/mp_app_internal.h
View File

@ -150,4 +150,21 @@ typedef struct mp_app
MP_PLATFORM_APP_DATA
} mp_app;
//--------------------------------------------------------------------
// layer management
//--------------------------------------------------------------------
typedef struct mp_layer mp_layer;
void mp_layer_init_for_window(mp_layer* layer, mp_window_data* window);
void mp_layer_init_for_sharing(mp_layer* layer, u32 width, u32 height);
void mp_layer_cleanup(mp_layer* layer);
vec2 mp_layer_contents_scaling(mp_layer* layer);
mp_rect mp_layer_get_frame(mp_layer* layer);
void mp_layer_set_frame(mp_layer* layer, mp_rect frame);
void mp_layer_set_hidden(mp_layer* layer, bool hidden);
bool mp_layer_get_hidden(mp_layer* layer);
void* mp_layer_native_surface(mp_layer* layer);
#endif // __MP_APP_INTERNAL_H_

36
src/win32_app.c
View File

@ -804,6 +804,42 @@ void mp_layer_init_for_window(mp_layer* layer, mp_window_data* window)
0);
}
void mp_layer_init_for_sharing(mp_layer* layer, u32 width, u32 height)
{
WNDCLASS layerWindowClass = {.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC,
.lpfnWndProc = DefWindowProc,
.hInstance = GetModuleHandleW(NULL),
.lpszClassName = "server_layer_window_class",
.hCursor = LoadCursor(0, IDC_ARROW)};
RegisterClass(&layerWindowClass);
//NOTE(martin): create a temporary parent window. This seems like a necessary hack, because if layer window is created as
// a normal window first, and then parented to the client window, it breaks resizing the parent
// window for some reason...
HWND tmpParent = CreateWindow("server_layer_window_class", "layerParent",
WS_OVERLAPPED,
0, 0, width, height,
0,
0,
layerWindowClass.hInstance,
0);
//NOTE: create the layer window
layer->hWnd = CreateWindowEx(WS_EX_NOACTIVATE,
"server_layer_window_class", "layer",
WS_CHILD,
0, 0, width, height,
tmpParent,
0,
layerWindowClass.hInstance,
0);
//NOTE: unparent it and destroy tmp parent
SetParent(layer->hWnd, 0);
DestroyWindow(tmpParent);
}
void mp_layer_cleanup(mp_layer* layer)
{
DestroyWindow(layer->hWnd);

223
src/win32_surface_sharing.c
View File

@ -8,156 +8,67 @@
*****************************************************************/
#include"graphics_internal.h"
//------------------------------------------------------------------------------------------------
// Surface server
//------------------------------------------------------------------------------------------------
mg_surface_server_data* mg_surface_server_data_from_handle(mg_surface_server handle)
{
mg_surface_server_data* server = (mg_surface_server_data*)mg_data_from_handle(MG_HANDLE_SURFACE_SERVER, handle.h);
return(server);
}
MP_API mg_surface_server mg_surface_server_create(void)
{
mg_surface_server_data* server = malloc_type(mg_surface_server_data);
//NOTE(martin): create a child window for the surface
WNDCLASS layerWindowClass = {.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC,
.lpfnWndProc = DefWindowProc,
.hInstance = GetModuleHandleW(NULL),
.lpszClassName = "server_layer_window_class",
.hCursor = LoadCursor(0, IDC_ARROW)};
RegisterClass(&layerWindowClass);
// RECT parentRect;
// GetClientRect(window->win32.hWnd, &parentRect);
// int width = parentRect.right - parentRect.left;
// int height = parentRect.bottom - parentRect.top;
int width = 200;
int height = 200;
//NOTE(martin): create dummy window
HWND dummyParent = CreateWindow("server_layer_window_class", "layerParent",
WS_OVERLAPPED,
0, 0, width, height,
0,
0,
layerWindowClass.hInstance,
0);
server->layer.hWnd = CreateWindowEx(WS_EX_NOACTIVATE,
"server_layer_window_class", "layer",
WS_CHILD,
0, 0, width, height,
dummyParent,
0,
layerWindowClass.hInstance,
0);
SetParent(server->layer.hWnd, 0);
DestroyWindow(dummyParent);
/*
mp_window window = mp_window_create((mp_rect){0, 0, 100, 100}, "server", 0);
mp_layer_init_for_window(&server->layer, mp_window_ptr_from_handle(window));
*/
mg_surface_server handle = (mg_surface_server){mg_handle_alloc(MG_HANDLE_SURFACE_SERVER, (void*)server)};
return(handle);
}
MP_API void mg_surface_server_destroy(mg_surface_server handle)
{
mg_surface_server_data* server = mg_surface_server_data_from_handle(handle);
if(server)
{
//TODO
free(server);
mg_handle_recycle(handle.h);
}
}
MP_API mg_surface_connection_id mg_surface_server_id(mg_surface_server handle)
{
mg_surface_connection_id res = 0;
mg_surface_server_data* server = mg_surface_server_data_from_handle(handle);
if(server)
{
//NOTE: just a quick test
HWND layerWindow = (HWND)mp_layer_native_surface(&server->layer);
res = (mg_surface_connection_id)layerWindow;
//res = (mg_surface_connection_id)GetParent(layerWindow);
}
return(res);
}
//------------------------------------------------------------------------------------------------
// Surface client
//------------------------------------------------------------------------------------------------
typedef struct mg_win32_surface_client
typedef struct mg_win32_surface_host
{
mg_surface_data interface;
mp_layer layer;
} mg_win32_surface_client;
} mg_win32_surface_host;
void mg_win32_surface_client_prepare(mg_surface_data* interface)
void mg_win32_surface_host_prepare(mg_surface_data* interface)
{}
void mg_win32_surface_client_present(mg_surface_data* interface)
void mg_win32_surface_host_present(mg_surface_data* interface)
{}
void mg_win32_surface_client_swap_interval(mg_surface_data* interface, int swap)
void mg_win32_surface_host_swap_interval(mg_surface_data* interface, int swap)
{
//TODO
}
vec2 mg_win32_surface_client_contents_scaling(mg_surface_data* interface)
vec2 mg_win32_surface_host_contents_scaling(mg_surface_data* interface)
{
mg_win32_surface_client* surface = (mg_win32_surface_client*)interface;
mg_win32_surface_host* surface = (mg_win32_surface_host*)interface;
return(mp_layer_contents_scaling(&surface->layer));
}
mp_rect mg_win32_surface_client_get_frame(mg_surface_data* interface)
mp_rect mg_win32_surface_host_get_frame(mg_surface_data* interface)
{
mg_win32_surface_client* surface = (mg_win32_surface_client*)interface;
mg_win32_surface_host* surface = (mg_win32_surface_host*)interface;
return(mp_layer_get_frame(&surface->layer));
}
void mg_win32_surface_client_set_frame(mg_surface_data* interface, mp_rect frame)
void mg_win32_surface_host_set_frame(mg_surface_data* interface, mp_rect frame)
{
mg_win32_surface_client* surface = (mg_win32_surface_client*)interface;
mg_win32_surface_host* surface = (mg_win32_surface_host*)interface;
mp_layer_set_frame(&surface->layer, frame);
}
void mg_win32_surface_client_set_hidden(mg_surface_data* interface, bool hidden)
void mg_win32_surface_host_set_hidden(mg_surface_data* interface, bool hidden)
{
mg_win32_surface_client* surface = (mg_win32_surface_client*)interface;
mg_win32_surface_host* surface = (mg_win32_surface_host*)interface;
mp_layer_set_hidden(&surface->layer, hidden);
}
bool mg_win32_surface_client_get_hidden(mg_surface_data* interface)
bool mg_win32_surface_host_get_hidden(mg_surface_data* interface)
{
mg_win32_surface_client* surface = (mg_win32_surface_client*)interface;
mg_win32_surface_host* surface = (mg_win32_surface_host*)interface;
return(mp_layer_get_hidden(&surface->layer));
}
void* mg_win32_surface_client_native_layer(mg_surface_data* interface)
void* mg_win32_surface_host_native_layer(mg_surface_data* interface)
{
mg_win32_surface_client* surface = (mg_win32_surface_client*)interface;
mg_win32_surface_host* surface = (mg_win32_surface_host*)interface;
return(mp_layer_native_surface(&surface->layer));
}
void mg_win32_surface_client_destroy(mg_surface_data* interface)
void mg_win32_surface_host_destroy(mg_surface_data* interface)
{
mg_win32_surface_client* surface = (mg_win32_surface_client*)interface;
mg_win32_surface_host* surface = (mg_win32_surface_host*)interface;
mp_layer_cleanup(&surface->layer);
//TODO...
@ -165,57 +76,9 @@ void mg_win32_surface_client_destroy(mg_surface_data* interface)
free(surface);
}
mg_surface_data* mg_win32_surface_client_create_for_window(mp_window window)
MP_API void mg_win32_surface_host_connect(mg_surface_data* interface, mg_surface_id ID)
{
mg_win32_surface_client* surface = 0;
mp_window_data* windowData = mp_window_ptr_from_handle(window);
if(windowData)
{
surface = malloc_type(mg_win32_surface_client);
if(surface)
{
mp_layer_init_for_window(&surface->layer, windowData);
surface->interface.backend = MG_BACKEND_REMOTE;
surface->interface.destroy = mg_win32_surface_client_destroy;
surface->interface.prepare = mg_win32_surface_client_prepare;
surface->interface.present = mg_win32_surface_client_present;
surface->interface.swapInterval = mg_win32_surface_client_swap_interval;
surface->interface.contentsScaling = mg_win32_surface_client_contents_scaling;
surface->interface.getFrame = mg_win32_surface_client_get_frame;
surface->interface.setFrame = mg_win32_surface_client_set_frame;
surface->interface.getHidden = mg_win32_surface_client_get_hidden;
surface->interface.setHidden = mg_win32_surface_client_set_hidden;
surface->interface.nativeLayer = mg_win32_surface_client_native_layer;
//TODO
}
}
return((mg_surface_data*)surface);
}
mg_surface mg_surface_client_create_for_window(mp_window window)
{
if(!__mgData.init)
{
mg_init();
}
mg_surface surfaceHandle = {0};
mg_surface_data* surface = mg_win32_surface_client_create_for_window(window);
if(surface)
{
surfaceHandle = mg_surface_handle_alloc(surface);
}
return(surfaceHandle);
}
MP_API void mg_surface_client_connect(mg_surface handle, mg_surface_connection_id ID)
{
mg_surface_data* interface = mg_surface_data_from_handle(handle);
if(interface && interface->backend == MG_BACKEND_REMOTE)
{
mg_win32_surface_client* surface = (mg_win32_surface_client*)interface;
mg_win32_surface_host* surface = (mg_win32_surface_host*)interface;
//NOTE:Quick test
HWND dstWnd = mp_layer_native_surface(&surface->layer);
@ -226,7 +89,6 @@ MP_API void mg_surface_client_connect(mg_surface handle, mg_surface_connection_i
SetParent(srcWnd, dstWnd);
ShowWindow(srcWnd, SW_NORMAL);
// SetWindowLongPtr(srcWnd, GWL_STYLE, WS_CHILD|WS_VISIBLE);
SetWindowPos(srcWnd,
HWND_TOP,
@ -235,6 +97,49 @@ MP_API void mg_surface_client_connect(mg_surface handle, mg_surface_connection_i
dstRect.right - dstRect.left,
dstRect.bottom - dstRect.top,
SWP_NOACTIVATE | SWP_NOZORDER);
}
mg_surface_data* mg_win32_surface_create_host(mp_window window)
{
mg_win32_surface_host* surface = 0;
mp_window_data* windowData = mp_window_ptr_from_handle(window);
if(windowData)
{
surface = malloc_type(mg_win32_surface_host);
if(surface)
{
mp_layer_init_for_window(&surface->layer, windowData);
surface->interface.backend = MG_BACKEND_REMOTE;
surface->interface.destroy = mg_win32_surface_host_destroy;
surface->interface.prepare = mg_win32_surface_host_prepare;
surface->interface.present = mg_win32_surface_host_present;
surface->interface.swapInterval = mg_win32_surface_host_swap_interval;
surface->interface.contentsScaling = mg_win32_surface_host_contents_scaling;
surface->interface.getFrame = mg_win32_surface_host_get_frame;
surface->interface.setFrame = mg_win32_surface_host_set_frame;
surface->interface.getHidden = mg_win32_surface_host_get_hidden;
surface->interface.setHidden = mg_win32_surface_host_set_hidden;
surface->interface.nativeLayer = mg_win32_surface_host_native_layer;
surface->interface.connect = mg_win32_surface_host_connect;
//TODO
}
}
return((mg_surface_data*)surface);
}
mg_surface mg_surface_create_host(mp_window window)
{
if(!__mgData.init)
{
mg_init();
}
mg_surface surfaceHandle = {0};
mg_surface_data* surface = mg_win32_surface_create_host(window);
if(surface)
{
surfaceHandle = mg_surface_handle_alloc(surface);
}
return(surfaceHandle);
}