platform/android: implement native software blitter, fix lost context on resize, fix safegl

2026-08-11 22:52:09 +08:00 · 2020-07-08 08:48:46 +07:00
parent c80da05e94
commit 4515d3e3cb
4 changed files with 230 additions and 103 deletions
@@ -9,11 +9,84 @@
 #include <EGL/egl.h>
 #include <EGL/eglext.h>

-static int gl_attribs[REF_GL_ATTRIBUTES_COUNT] = { 0 };
-static qboolean gl_attribs_set[REF_GL_ATTRIBUTES_COUNT] = { 0 };
-static EGLint gl_api = EGL_OPENGL_ES_API;
-static void *libgles1, *libgles2;
-static qboolean gles1;
+static struct vid_android_s
+{
+	int gl_attribs[REF_GL_ATTRIBUTES_COUNT];
+	qboolean gl_attribs_set[REF_GL_ATTRIBUTES_COUNT];
+	EGLint gl_api;
+	qboolean gles1;
+	void *libgles1, *libgles2;
+	qboolean has_context;
+	ANativeWindow* window;
+} vid_android;
+
+static struct nw_s
+{
+	void (*release)(ANativeWindow* window);
+	int32_t (*getWidth)(ANativeWindow* window);
+	int32_t (*getHeight)(ANativeWindow* window);
+	int32_t (*getFormat)(ANativeWindow* window);
+	int32_t (*setBuffersGeometry)(ANativeWindow* window, int32_t width, int32_t height, int32_t format);
+	int32_t (*lock)(ANativeWindow* window, ANativeWindow_Buffer* outBuffer, ARect* inOutDirtyBounds);
+	int32_t (*unlockAndPost)(ANativeWindow* window);
+	ANativeWindow* (*fromSurface)(JNIEnv* env, jobject surface);
+} nw;
+
+#define NW_FF(x) {"ANativeWindow_"#x, (void*)&nw.x}
+
+
+static dllfunc_t android_funcs[] =
+{
+	NW_FF(release),
+	NW_FF(getWidth),
+	NW_FF(getHeight),
+	NW_FF(getFormat),
+	NW_FF(setBuffersGeometry),
+	NW_FF(lock),
+	NW_FF(unlockAndPost),
+	NW_FF(fromSurface),
+	{ NULL, NULL }
+};
+#undef NW_FF
+dll_info_t android_info = { "libandroid.so", android_funcs, false };
+
+static struct egl_s
+{
+	EGLSurface (*GetCurrentSurface)(EGLint readdraw);
+	EGLDisplay (*GetCurrentDisplay)(void);
+	EGLint (*GetError)(void);
+	EGLBoolean (*SwapBuffers)(EGLDisplay dpy, EGLSurface surface);
+	EGLBoolean (*SwapInterval)(EGLDisplay dpy, EGLint interval);
+	void *(*GetProcAddress)(const char *procname);
+} egl;
+#undef GetProcAddress
+#define EGL_FF(x) {"egl"#x, (void*)&egl.x}
+static dllfunc_t egl_funcs[] =
+{
+	EGL_FF(SwapInterval),
+	EGL_FF(SwapBuffers),
+	EGL_FF(GetError),
+	EGL_FF(GetCurrentDisplay),
+	EGL_FF(GetCurrentSurface),
+	EGL_FF(GetProcAddress),
+	{ NULL, NULL }
+};
+#undef EGL_FF
+dll_info_t egl_info = { "libEGL.so", egl_funcs, false };
+
+static struct nativeegl_s
+{
+	qboolean valid;
+	void *window;
+	EGLDisplay dpy;
+	EGLSurface surface;
+	EGLContext context;
+	EGLConfig cfg;
+	EGLint numCfg;
+
+	const char *extensions;
+} negl;
+
 /*
 ========================
 Android_SwapInterval
@@ -22,7 +95,7 @@ Android_SwapInterval
 static void Android_SwapInterval( int interval )
 {
 	if( negl.valid )
-		eglSwapInterval( negl.dpy, interval );
+		egl.SwapInterval( negl.dpy, interval );
 }

 /*
@@ -68,7 +141,7 @@ void GL_SwapBuffers( void )
 {
 	if( negl.valid )
 	{
-		eglSwapBuffers( negl.dpy, negl.surface );
+		egl.SwapBuffers( negl.dpy, negl.surface );
 	}
 	else
 	{
@@ -83,29 +156,64 @@ Android_UpdateSurface
 Check if we may use native EGL without jni calls
 ========================
 */
-void Android_UpdateSurface( void )
+void Android_UpdateSurface( qboolean active )
 {
 	negl.valid = false;

-	if( !Sys_CheckParm("-nativeegl") )
+	if( nw.release )
+	{
+		if( vid_android.window && !active )
+		{
+			nw.release( vid_android.window );
+			vid_android.window = NULL;
+		}
+	
+		if( active )
+		{
+			jobject surf;
+			if( vid_android.window )
+				nw.release( vid_android.window );
+			surf = (*jni.env)->CallStaticObjectMethod(jni.env, jni.actcls, jni.getSurface);
+			Con_Printf("s %p\n", surf);
+			vid_android.window = nw.fromSurface(jni.env, surf);
+			Con_Printf("w %p\n", vid_android.window);
+			nw.setBuffersGeometry(vid_android.window, 0, 0, WINDOW_FORMAT_RGB_565 );
+			(*jni.env)->DeleteLocalRef( jni.env, surf );
+		}
+		return;
+	}
+
+	if( !vid_android.has_context )
+		return;
+
+	if( ( active && host.status == HOST_FRAME ) || !active )
+		(*jni.env)->CallStaticVoidMethod( jni.env, jni.actcls, jni.toggleEGL, 0 );
+
+	if( active )
+		(*jni.env)->CallStaticVoidMethod( jni.env, jni.actcls, jni.toggleEGL, 1 );
+
+	if( !Sys_CheckParm("-nativeegl") || !active )
 		return; // enabled by user

-	negl.dpy = eglGetCurrentDisplay();
+	if( !egl.GetCurrentDisplay )
+		return;
+
+	negl.dpy = egl.GetCurrentDisplay();

 	if( negl.dpy == EGL_NO_DISPLAY )
 		return;

-	negl.surface = eglGetCurrentSurface(EGL_DRAW);
+	negl.surface = egl.GetCurrentSurface(EGL_DRAW);

 	if( negl.surface == EGL_NO_SURFACE )
 		return;

 	// now check if swapBuffers does not give error
-	if( eglSwapBuffers( negl.dpy, negl.surface ) == EGL_FALSE )
+	if( egl.SwapBuffers( negl.dpy, negl.surface ) == EGL_FALSE )
 		return;

 	// double check
-	if( eglGetError() != EGL_SUCCESS )
+	if( egl.GetError() != EGL_SUCCESS )
 		return;

 	__android_log_print( ANDROID_LOG_VERBOSE, "Xash", "native EGL enabled" );
@@ -148,9 +256,6 @@ qboolean  R_Init_Video( const int type )
 		break;
 	}

-	memset( gl_attribs, 0, sizeof( gl_attribs ));
-	memset( gl_attribs_set, 0, sizeof( gl_attribs_set ));
-
 	if( FS_FileExists( GI->iconpath, true ) )
 	{
 		if( host.rodir[0] )
@@ -174,11 +279,11 @@ qboolean  R_Init_Video( const int type )
 		break;
 	case REF_GL:
 		glw_state.software = false;
+		Sys_LoadLibrary( &egl_info );
+
 		if( !glw_state.safe && Sys_GetParmFromCmdLine( "-safegl", safe ) )
 			glw_state.safe = bound( SAFE_NO, Q_atoi( safe ), SAFE_DONTCARE );

-		// refdll can request some attributes
-		ref.dllFuncs.GL_SetupAttributes( glw_state.safe );
 		break;
 	default:
 		Host_Error( "Can't initialize unknown context type %d!\n", type );
@@ -187,8 +292,13 @@ qboolean  R_Init_Video( const int type )

 	if( glw_state.software )
 	{
-		Con_Reportf( S_ERROR "Native software mode isn't supported on Android yet! :(\n" );
-		return false;
+		uint arg;
+//		Con_Reportf( S_ERROR "Native software mode isn't supported on Android yet! :(\n" );
+//		return false;
+		Sys_LoadLibrary( &android_info );
+		Android_UpdateSurface( true );
+		if( !SW_CreateBuffer( jni.width, jni.height, &arg, &arg, &arg, &arg, &arg ) )
+			return false;
 	}

 	while( !(retval = VID_SetMode()) )
@@ -221,15 +331,17 @@ void R_Free_Video( void )
 	// VID_DestroyWindow ();

 	// R_FreeVideoModes();
-
+	Sys_FreeLibrary( &android_info );
+	Sys_FreeLibrary( &egl_info );
+	vid_android.has_context = false;
 	ref.dllFuncs.GL_ClearExtensions();
 }

 #define COPY_ATTR_IF_SET( refattr, attr ) \
-	if( gl_attribs_set[refattr] ) \
+	if( vid_android.gl_attribs_set[refattr] ) \
 	{ \
 		attribs[i++] = attr; \
-		attribs[i++] = gl_attribs[refattr]; \
+		attribs[i++] = vid_android.gl_attribs[refattr]; \
 	}

 static size_t VID_GenerateConfig( EGLint *attribs, size_t size )
@@ -237,7 +349,12 @@ static size_t VID_GenerateConfig( EGLint *attribs, size_t size )
 	size_t i = 0;

 	memset( attribs, 0, size * sizeof( EGLint ) );
-	gles1 = false;
+	vid_android.gles1 = false;
+	memset( vid_android.gl_attribs, 0, sizeof( vid_android.gl_attribs ));
+	memset( vid_android.gl_attribs_set, 0, sizeof( vid_android.gl_attribs_set ));
+
+	// refdll can request some attributes
+	ref.dllFuncs.GL_SetupAttributes( glw_state.safe );

 	COPY_ATTR_IF_SET( REF_GL_RED_SIZE, EGL_RED_SIZE );
 	COPY_ATTR_IF_SET( REF_GL_GREEN_SIZE, EGL_GREEN_SIZE );
@@ -248,31 +365,31 @@ static size_t VID_GenerateConfig( EGLint *attribs, size_t size )
 	COPY_ATTR_IF_SET( REF_GL_MULTISAMPLEBUFFERS, EGL_SAMPLE_BUFFERS );
 	COPY_ATTR_IF_SET( REF_GL_MULTISAMPLESAMPLES, EGL_SAMPLES );

-	if( gl_attribs_set[REF_GL_ACCELERATED_VISUAL] )
+	if( vid_android.gl_attribs_set[REF_GL_ACCELERATED_VISUAL] )
 	{
 		attribs[i++] = EGL_CONFIG_CAVEAT;
-		attribs[i++] = gl_attribs[REF_GL_ACCELERATED_VISUAL] ? EGL_NONE : EGL_DONT_CARE;
+		attribs[i++] = vid_android.gl_attribs[REF_GL_ACCELERATED_VISUAL] ? EGL_NONE : EGL_DONT_CARE;
 	}

 	// BigGL support
 	attribs[i++] = EGL_RENDERABLE_TYPE;
-	gl_api = EGL_OPENGL_ES_API;
+	vid_android.gl_api = EGL_OPENGL_ES_API;

-	if( gl_attribs_set[REF_GL_CONTEXT_PROFILE_MASK] &&
-		!( gl_attribs[REF_GL_CONTEXT_PROFILE_MASK] & REF_GL_CONTEXT_PROFILE_ES ))
+	if( vid_android.gl_attribs_set[REF_GL_CONTEXT_PROFILE_MASK] &&
+		!( vid_android.gl_attribs[REF_GL_CONTEXT_PROFILE_MASK] & REF_GL_CONTEXT_PROFILE_ES ))
 	{
 		attribs[i++] = EGL_OPENGL_BIT;
-		gl_api = EGL_OPENGL_API;
+		vid_android.gl_api = EGL_OPENGL_API;
 	}
-	else if( gl_attribs_set[REF_GL_CONTEXT_MAJOR_VERSION] &&
-		gl_attribs[REF_GL_CONTEXT_MAJOR_VERSION] >= 2 )
+	else if( vid_android.gl_attribs_set[REF_GL_CONTEXT_MAJOR_VERSION] &&
+		vid_android.gl_attribs[REF_GL_CONTEXT_MAJOR_VERSION] >= 2 )
 	{
 		attribs[i++] = EGL_OPENGL_ES2_BIT;
 	}
 	else
 	{
-		attribs[i++] = EGL_OPENGL_ES_BIT;
-		gles1 = true;
+		i--; // erase EGL_RENDERABLE_TYPE
+		vid_android.gles1 = true;
 	}

 	attribs[i++] = EGL_NONE;
@@ -288,15 +405,15 @@ static size_t VID_GenerateContextConfig( EGLint *attribs, size_t size )

 	/*if( Q_strcmp( negl.extensions, " EGL_KHR_create_context ") )
 	{
-		if( gl_attribs_set[REF_GL_CONTEXT_FLAGS] )
+		if( vid_android.gl_attribs_set[REF_GL_CONTEXT_FLAGS] )
 		{
 			attribs[i++] = 0x30FC; // EGL_CONTEXT_FLAGS_KHR
-			attribs[i++] = gl_attribs[REF_GL_CONTEXT_FLAGS] & ((REF_GL_CONTEXT_ROBUST_ACCESS_FLAG << 1) - 1);
+			attribs[i++] = vid_android.gl_attribs[REF_GL_CONTEXT_FLAGS] & ((REF_GL_CONTEXT_ROBUST_ACCESS_FLAG << 1) - 1);
 		}

-		if( gl_attribs_set[REF_GL_CONTEXT_PROFILE_MASK] )
+		if( vid_android.gl_attribs_set[REF_GL_CONTEXT_PROFILE_MASK] )
 		{
-			int val = gl_attribs[REF_GL_CONTEXT_PROFILE_MASK];
+			int val = vid_android.gl_attribs[REF_GL_CONTEXT_PROFILE_MASK];

 			if( val & ( (REF_GL_CONTEXT_PROFILE_COMPATIBILITY << 1) - 1 ) )
 			{
@@ -325,9 +442,16 @@ qboolean VID_SetMode( void )
 	jintArray attribs, contextAttribs;
 	static EGLint nAttribs[32+1], nContextAttribs[32+1];
 	const size_t attribsSize = ARRAYSIZE( nAttribs );
+	size_t s1, s2;

-	size_t s1 = VID_GenerateConfig(nAttribs, attribsSize);
-	size_t s2 = VID_GenerateContextConfig(nContextAttribs, attribsSize);
+	if( vid_android.has_context )
+	{
+		R_ChangeDisplaySettings( 0, 0, false ); // width and height are ignored anyway
+		return true;
+	}
+
+	s1 = VID_GenerateConfig(nAttribs, attribsSize);
+	s2 = VID_GenerateContextConfig(nContextAttribs, attribsSize);

 	attribs = (*jni.env)->NewIntArray( jni.env, s1 );
 	contextAttribs = (*jni.env)->NewIntArray( jni.env, s2 );
@@ -337,8 +461,12 @@ qboolean VID_SetMode( void )

 	R_ChangeDisplaySettings( 0, 0, false ); // width and height are ignored anyway

+	if( glw_state.software )
+		return true;
+
 	if( (*jni.env)->CallStaticBooleanMethod( jni.env, jni.actcls, jni.createGLContext, attribs, contextAttribs ) )
 	{
+		vid_android.has_context = true;
 		return true;
 	}

@@ -387,8 +515,8 @@ int GL_SetAttribute( int attr, int val )
 	if( attr < 0 || attr >= REF_GL_ATTRIBUTES_COUNT )
 		return -1;

-	gl_attribs[attr] = val;
-	gl_attribs_set[attr] = true;
+	vid_android.gl_attribs[attr] = val;
+	vid_android.gl_attribs_set[attr] = true;
 	return 0;
 }

@@ -445,23 +573,26 @@ void* GL_GetProcAddress( const char *name ) // RenderAPI requirement
 	void *gles;
 	void *addr;

-	if( gles1 )
+	if( vid_android.gles1 )
 	{
-		if( !libgles1 )
-			libgles1 = dlopen("libGLESv1_CM.so", RTLD_NOW);
-		gles = libgles1;
+		if( !vid_android.libgles1 )
+			vid_android.libgles1 = dlopen("libGLESv1_CM.so", RTLD_NOW);
+		gles = vid_android.libgles1;
 	}
 	else
 	{
-		if( !libgles2 )
-			libgles2 = dlopen("libGLESv2.so", RTLD_NOW);
-		gles = libgles2;
+		if( !vid_android.libgles2 )
+			vid_android.libgles2 = dlopen("libGLESv2.so", RTLD_NOW);
+		gles = vid_android.libgles2;
 	}

 	if( gles && ( addr = dlsym(gles, name ) ) )
 		return addr;

-	return eglGetProcAddress( name );
+	if( !egl.GetProcAddress )
+		return NULL;
+
+	return egl.GetProcAddress( name );
 }

 void GL_UpdateSwapInterval( void )
@@ -481,15 +612,47 @@ void GL_UpdateSwapInterval( void )

 void *SW_LockBuffer( void )
 {
-	return NULL;
+	ANativeWindow_Buffer buffer;
+	if( !nw.lock || !vid_android.window )
+		return NULL;
+	if( nw.lock( vid_android.window, &buffer, NULL ) )
+		return NULL;
+	if( buffer.width < refState.width || buffer.height < refState.height )
+		return NULL;
+	return buffer.bits;
 }

 void SW_UnlockBuffer( void )
 {
-
+	if( nw.unlockAndPost )
+		nw.unlockAndPost( vid_android.window );
 }

 qboolean SW_CreateBuffer( int width, int height, uint *stride, uint *bpp, uint *r, uint *g, uint *b )
 {
-	return false;
+	ANativeWindow_Buffer buffer;
+	int lock;
+	if( !nw.lock || !vid_android.window )
+		return false;
+	nw.unlockAndPost( vid_android.window );
+
+	if( ( lock = nw.lock( vid_android.window, &buffer, NULL ) ) )
+	{
+		Con_Printf("SW_CreateBuffer: lock %d\n", lock );
+		return false;
+	}
+	nw.unlockAndPost( vid_android.window );
+	Con_Printf("SW_CreateBuffer: buffer %d %d %x %d\n", buffer.width, buffer.height, buffer.format, buffer.stride );
+	if( width > buffer.width || height > buffer.height )
+		return false;
+	if( buffer.format != WINDOW_FORMAT_RGB_565 )
+		return false;
+	Con_Printf("SW_CreateBuffer: ok\n");
+	*stride = buffer.stride;
+
+	*bpp = 2;
+	*r = (((1 << 5) - 1) << (5+6));
+	*g = (((1 << 6) - 1) << (5));
+	*b = (((1 << 5) - 1) << (0));
+	return true;
 }