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Introduce nwindowGetDefault

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This commit is contained in:
fincs 2018-12-12 21:13:17 +01:00
parent 7807fa7078
commit 5e8a88ce85
3 changed files with 67 additions and 0 deletions
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11
nx/include/switch/display/native_window.h
View File

@ -43,6 +43,17 @@ typedef struct NWindow {
/// Checks whether a pointer refers to a valid \ref NWindow object.
bool nwindowIsValid(NWindow* nw);
/**
* @brief Retrieves the default \ref NWindow object.
* @return Pointer to the default \ref NWindow object.
* @note When this function is used/referenced, libnx will initialize VI services
* and create a \ref NWindow object from a \ref ViLayer created on the default \ref ViDisplay;
* all of this happening automatically during application startup (i.e. before main is called).
* If creating the default \ref NWindow fails, libnx will throw a LibnxError_BadGfxInit fatal error.
* Likewise, after main returns (or exit is called) libnx will clean up all resources used by it.
*/
NWindow* nwindowGetDefault(void);
/**
* @brief Creates a \ref NWindow.
* @param[out] nw Output \ref NWindow structure.

51
nx/source/display/default_window.c Normal file
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@ -0,0 +1,51 @@
#include <string.h>
#include "types.h"
#include "result.h"
#include "services/vi.h"
#include "services/fatal.h"
#include "display/binder.h"
#include "display/buffer_producer.h"
#include "display/native_window.h"
#include "nvidia/graphic_buffer.h"
static ViDisplay g_viDisplay;
static ViLayer g_viLayer;
static NWindow g_defaultWin;
NWindow* nwindowGetDefault(void)
{
return &g_defaultWin;
}
void __nx_win_init(void)
{
Result rc;
rc = viInitialize(ViServiceType_Default);
if (R_SUCCEEDED(rc)) {
rc = viOpenDefaultDisplay(&g_viDisplay);
if (R_SUCCEEDED(rc)) {
rc = viCreateLayer(&g_viDisplay, &g_viLayer);
if (R_SUCCEEDED(rc)) {
rc = viSetLayerScalingMode(&g_viLayer, ViScalingMode_FitToLayer);
if (R_SUCCEEDED(rc))
rc = nwindowCreateFromLayer(&g_defaultWin, &g_viLayer);
if (R_FAILED(rc))
viCloseLayer(&g_viLayer);
}
if (R_FAILED(rc))
viCloseDisplay(&g_viDisplay);
}
if (R_FAILED(rc))
viExit();
}
if (R_FAILED(rc))
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_BadGfxInit));
}
void __nx_win_exit(void)
{
nwindowClose(&g_defaultWin);
viCloseLayer(&g_viLayer);
viCloseDisplay(&g_viDisplay);
viExit();
}

5
nx/source/runtime/init.c
View File

@ -95,6 +95,7 @@ void __attribute__((weak)) __libnx_initheap(void)
fake_heap_end = (char*)addr + size;
}
void __attribute__((weak)) __nx_win_init(void);
void __attribute__((weak)) userAppInit(void);
void __attribute__((weak)) __appInit(void)
@ -128,14 +129,18 @@ void __attribute__((weak)) __appInit(void)
fsdevMountSdmc();
if (&__nx_win_init) __nx_win_init();
if (&userAppInit) userAppInit();
}
void __attribute__((weak)) userAppExit(void);
void __attribute__((weak)) __nx_win_exit(void);
void __attribute__((weak)) __appExit(void)
{
if (&userAppExit) userAppExit();
if (&__nx_win_exit) __nx_win_exit();
// Cleanup default services.
fsdevUnmountAll();
fsExit();