berp.

1 files changed, 0 insertions, 578 deletions

diff --git a/src/libui_sdl/libui/windows/draw.cpp b/src/libui_sdl/libui/windows/draw.cpp
deleted file mode 100644
index 9a815b9..0000000
--- a/src/libui_sdl/libui/windows/draw.cpp
+++ /dev/null
@@ -1,578 +0,0 @@
-// 7 september 2015
-#include "uipriv_windows.hpp"
-#include "draw.hpp"
-
-ID2D1Factory *d2dfactory = NULL;
-
-HRESULT initDraw(void)
-{
-	D2D1_FACTORY_OPTIONS opts;
-
-	ZeroMemory(&opts, sizeof (D2D1_FACTORY_OPTIONS));
-	// TODO make this an option
-	opts.debugLevel = D2D1_DEBUG_LEVEL_NONE;
-	return D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED,
-		IID_ID2D1Factory,
-		&opts,
-		(void **) (&d2dfactory));
-}
-
-void uninitDraw(void)
-{
-	d2dfactory->Release();
-}
-
-ID2D1HwndRenderTarget *makeHWNDRenderTarget(HWND hwnd)
-{
-	D2D1_RENDER_TARGET_PROPERTIES props;
-	D2D1_HWND_RENDER_TARGET_PROPERTIES hprops;
-	HDC dc;
-	RECT r;
-	ID2D1HwndRenderTarget *rt;
-	HRESULT hr;
-
-	// we need a DC for the DPI
-	// we *could* just use the screen DPI but why when we have a window handle and its DC has a DPI
-	dc = GetDC(hwnd);
-	if (dc == NULL)
-		logLastError(L"error getting DC to find DPI");
-
-	ZeroMemory(&props, sizeof (D2D1_RENDER_TARGET_PROPERTIES));
-	props.type = D2D1_RENDER_TARGET_TYPE_HARDWARE;//DEFAULT;
-	props.pixelFormat.format = DXGI_FORMAT_UNKNOWN;
-	props.pixelFormat.alphaMode = D2D1_ALPHA_MODE_UNKNOWN;
-	props.dpiX = GetDeviceCaps(dc, LOGPIXELSX);
-	props.dpiY = GetDeviceCaps(dc, LOGPIXELSY);
-	props.usage = D2D1_RENDER_TARGET_USAGE_NONE;
-	props.minLevel = D2D1_FEATURE_LEVEL_DEFAULT;
-
-	if (ReleaseDC(hwnd, dc) == 0)
-		logLastError(L"error releasing DC for finding DPI");
-
-	uiWindowsEnsureGetClientRect(hwnd, &r);
-
-	ZeroMemory(&hprops, sizeof (D2D1_HWND_RENDER_TARGET_PROPERTIES));
-	hprops.hwnd = hwnd;
-	hprops.pixelSize.width = r.right - r.left;
-	hprops.pixelSize.height = r.bottom - r.top;
-	// according to Rick Brewster, some drivers will misbehave if we don't specify this (see http://stackoverflow.com/a/33222983/3408572)
-	hprops.presentOptions = D2D1_PRESENT_OPTIONS_RETAIN_CONTENTS;
-
-	hr = d2dfactory->CreateHwndRenderTarget(
-		&props,
-		&hprops,
-		&rt);
-	if (hr != S_OK)
-    {
-        props.type = D2D1_RENDER_TARGET_TYPE_DEFAULT;
-        hr = d2dfactory->CreateHwndRenderTarget(
-            &props,
-            &hprops,
-            &rt);
-        if (hr != S_OK)
-            logHRESULT(L"error creating HWND render target", hr);
-    }
-
-	return rt;
-}
-
-ID2D1DCRenderTarget *makeHDCRenderTarget(HDC dc, RECT *r)
-{
-	D2D1_RENDER_TARGET_PROPERTIES props;
-	ID2D1DCRenderTarget *rt;
-	HRESULT hr;
-
-	ZeroMemory(&props, sizeof (D2D1_RENDER_TARGET_PROPERTIES));
-	props.type = D2D1_RENDER_TARGET_TYPE_DEFAULT;
-	props.pixelFormat.format = DXGI_FORMAT_B8G8R8A8_UNORM;
-	props.pixelFormat.alphaMode = D2D1_ALPHA_MODE_PREMULTIPLIED;
-	props.dpiX = GetDeviceCaps(dc, LOGPIXELSX);
-	props.dpiY = GetDeviceCaps(dc, LOGPIXELSY);
-	props.usage = D2D1_RENDER_TARGET_USAGE_GDI_COMPATIBLE;
-	props.minLevel = D2D1_FEATURE_LEVEL_DEFAULT;
-
-	hr = d2dfactory->CreateDCRenderTarget(&props, &rt);
-	if (hr != S_OK)
-		logHRESULT(L"error creating DC render target", hr);
-	hr = rt->BindDC(dc, r);
-	if (hr != S_OK)
-		logHRESULT(L"error binding DC to DC render target", hr);
-	return rt;
-}
-
-static void resetTarget(ID2D1RenderTarget *rt)
-{
-	D2D1_MATRIX_3X2_F dm;
-
-	// transformations persist
-	// reset to the identity matrix
-	ZeroMemory(&dm, sizeof (D2D1_MATRIX_3X2_F));
-	dm._11 = 1;
-	dm._22 = 1;
-	rt->SetTransform(&dm);
-}
-
-uiDrawContext *newContext(ID2D1RenderTarget *rt)
-{
-	uiDrawContext *c;
-
-	c = uiNew(uiDrawContext);
-	c->rt = rt;
-	c->states = new std::vector<struct drawState>;
-	resetTarget(c->rt);
-	return c;
-}
-
-void freeContext(uiDrawContext *c)
-{
-	if (c->currentClip != NULL)
-		c->currentClip->Release();
-	if (c->states->size() != 0)
-		// TODO do this on other platforms
-		userbug("You did not balance uiDrawSave() and uiDrawRestore() calls.");
-	delete c->states;
-	uiFree(c);
-}
-
-static ID2D1Brush *makeSolidBrush(uiDrawBrush *b, ID2D1RenderTarget *rt, D2D1_BRUSH_PROPERTIES *props)
-{
-	D2D1_COLOR_F color;
-	ID2D1SolidColorBrush *brush;
-	HRESULT hr;
-
-	color.r = b->R;
-	color.g = b->G;
-	color.b = b->B;
-	color.a = b->A;
-
-	hr = rt->CreateSolidColorBrush(
-		&color,
-		props,
-		&brush);
-	if (hr != S_OK)
-		logHRESULT(L"error creating solid brush", hr);
-	return brush;
-}
-
-static ID2D1GradientStopCollection *mkstops(uiDrawBrush *b, ID2D1RenderTarget *rt)
-{
-	ID2D1GradientStopCollection *s;
-	D2D1_GRADIENT_STOP *stops;
-	size_t i;
-	HRESULT hr;
-
-	stops = (D2D1_GRADIENT_STOP *) uiAlloc(b->NumStops * sizeof (D2D1_GRADIENT_STOP), "D2D1_GRADIENT_STOP[]");
-	for (i = 0; i < b->NumStops; i++) {
-		stops[i].position = b->Stops[i].Pos;
-		stops[i].color.r = b->Stops[i].R;
-		stops[i].color.g = b->Stops[i].G;
-		stops[i].color.b = b->Stops[i].B;
-		stops[i].color.a = b->Stops[i].A;
-	}
-
-	hr = rt->CreateGradientStopCollection(
-		stops,
-		b->NumStops,
-		D2D1_GAMMA_2_2,			// this is the default for the C++-only overload of ID2D1RenderTarget::GradientStopCollection()
-		D2D1_EXTEND_MODE_CLAMP,
-		&s);
-	if (hr != S_OK)
-		logHRESULT(L"error creating stop collection", hr);
-
-	uiFree(stops);
-	return s;
-}
-
-static ID2D1Brush *makeLinearBrush(uiDrawBrush *b, ID2D1RenderTarget *rt, D2D1_BRUSH_PROPERTIES *props)
-{
-	ID2D1LinearGradientBrush *brush;
-	D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES gprops;
-	ID2D1GradientStopCollection *stops;
-	HRESULT hr;
-
-	ZeroMemory(&gprops, sizeof (D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES));
-	gprops.startPoint.x = b->X0;
-	gprops.startPoint.y = b->Y0;
-	gprops.endPoint.x = b->X1;
-	gprops.endPoint.y = b->Y1;
-
-	stops = mkstops(b, rt);
-
-	hr = rt->CreateLinearGradientBrush(
-		&gprops,
-		props,
-		stops,
-		&brush);
-	if (hr != S_OK)
-		logHRESULT(L"error creating gradient brush", hr);
-
-	// the example at https://msdn.microsoft.com/en-us/library/windows/desktop/dd756682%28v=vs.85%29.aspx says this is safe to do now
-	stops->Release();
-	return brush;
-}
-
-static ID2D1Brush *makeRadialBrush(uiDrawBrush *b, ID2D1RenderTarget *rt, D2D1_BRUSH_PROPERTIES *props)
-{
-	ID2D1RadialGradientBrush *brush;
-	D2D1_RADIAL_GRADIENT_BRUSH_PROPERTIES gprops;
-	ID2D1GradientStopCollection *stops;
-	HRESULT hr;
-
-	ZeroMemory(&gprops, sizeof (D2D1_RADIAL_GRADIENT_BRUSH_PROPERTIES));
-	gprops.gradientOriginOffset.x = b->X0 - b->X1;
-	gprops.gradientOriginOffset.y = b->Y0 - b->Y1;
-	gprops.center.x = b->X1;
-	gprops.center.y = b->Y1;
-	gprops.radiusX = b->OuterRadius;
-	gprops.radiusY = b->OuterRadius;
-
-	stops = mkstops(b, rt);
-
-	hr = rt->CreateRadialGradientBrush(
-		&gprops,
-		props,
-		stops,
-		&brush);
-	if (hr != S_OK)
-		logHRESULT(L"error creating gradient brush", hr);
-
-	stops->Release();
-	return brush;
-}
-
-static ID2D1Brush *makeBrush(uiDrawBrush *b, ID2D1RenderTarget *rt)
-{
-	D2D1_BRUSH_PROPERTIES props;
-
-	ZeroMemory(&props, sizeof (D2D1_BRUSH_PROPERTIES));
-	props.opacity = 1.0;
-	// identity matrix
-	props.transform._11 = 1;
-	props.transform._22 = 1;
-
-	switch (b->Type) {
-	case uiDrawBrushTypeSolid:
-		return makeSolidBrush(b, rt, &props);
-	case uiDrawBrushTypeLinearGradient:
-		return makeLinearBrush(b, rt, &props);
-	case uiDrawBrushTypeRadialGradient:
-		return makeRadialBrush(b, rt, &props);
-//	case uiDrawBrushTypeImage:
-//		TODO
-	}
-
-	// TODO do this on all platforms
-	userbug("Invalid brush type %d given to drawing operation.", b->Type);
-	// TODO dummy brush?
-	return NULL;		// make compiler happy
-}
-
-// how clipping works:
-// every fill and stroke is done on a temporary layer with the clip geometry applied to it
-// this is really the only way to clip in Direct2D that doesn't involve opacity images
-// reference counting:
-// - initially the clip is NULL, which means do not use a layer
-// - the first time uiDrawClip() is called, we take a reference on the path passed in (this is also why uiPathEnd() is needed)
-// - every successive time, we create a new PathGeometry and merge the current clip with the new path, releasing the reference we took earlier and taking a reference to the new one
-// - in Save, we take another reference; in Restore we drop the refernece to the existing path geometry and transfer that saved ref to the new path geometry over to the context
-// uiDrawFreePath() doesn't destroy the path geometry, it just drops the reference count, so a clip can exist independent of its path
-
-static ID2D1Layer *applyClip(uiDrawContext *c)
-{
-	ID2D1Layer *layer;
-	D2D1_LAYER_PARAMETERS params;
-	HRESULT hr;
-
-	// if no clip, don't do anything
-	if (c->currentClip == NULL)
-		return NULL;
-
-	// create a layer for clipping
-	// we have to explicitly make the layer because we're still targeting Windows 7
-	hr = c->rt->CreateLayer(NULL, &layer);
-	if (hr != S_OK)
-		logHRESULT(L"error creating clip layer", hr);
-
-	// apply it as the clip
-	ZeroMemory(&params, sizeof (D2D1_LAYER_PARAMETERS));
-	// this is the equivalent of InfiniteRect() in d2d1helper.h
-	params.contentBounds.left = -FLT_MAX;
-	params.contentBounds.top = -FLT_MAX;
-	params.contentBounds.right = FLT_MAX;
-	params.contentBounds.bottom = FLT_MAX;
-	params.geometricMask = (ID2D1Geometry *) (c->currentClip);
-	// TODO is this correct?
-	params.maskAntialiasMode = c->rt->GetAntialiasMode();
-	// identity matrix
-	params.maskTransform._11 = 1;
-	params.maskTransform._22 = 1;
-	params.opacity = 1.0;
-	params.opacityBrush = NULL;
-	params.layerOptions = D2D1_LAYER_OPTIONS_NONE;
-	// TODO is this correct?
-	if (c->rt->GetTextAntialiasMode() == D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE)
-		params.layerOptions = D2D1_LAYER_OPTIONS_INITIALIZE_FOR_CLEARTYPE;
-	c->rt->PushLayer(&params, layer);
-
-	// return the layer so it can be freed later
-	return layer;
-}
-
-static void unapplyClip(uiDrawContext *c, ID2D1Layer *layer)
-{
-	if (layer == NULL)
-		return;
-	c->rt->PopLayer();
-	layer->Release();
-}
-
-void uiDrawStroke(uiDrawContext *c, uiDrawPath *p, uiDrawBrush *b, uiDrawStrokeParams *sp)
-{
-	ID2D1Brush *brush;
-	ID2D1StrokeStyle *style;
-	D2D1_STROKE_STYLE_PROPERTIES dsp;
-	FLOAT *dashes;
-	size_t i;
-	ID2D1Layer *cliplayer;
-	HRESULT hr;
-
-	brush = makeBrush(b, c->rt);
-
-	ZeroMemory(&dsp, sizeof (D2D1_STROKE_STYLE_PROPERTIES));
-	switch (sp->Cap) {
-	case uiDrawLineCapFlat:
-		dsp.startCap = D2D1_CAP_STYLE_FLAT;
-		dsp.endCap = D2D1_CAP_STYLE_FLAT;
-		dsp.dashCap = D2D1_CAP_STYLE_FLAT;
-		break;
-	case uiDrawLineCapRound:
-		dsp.startCap = D2D1_CAP_STYLE_ROUND;
-		dsp.endCap = D2D1_CAP_STYLE_ROUND;
-		dsp.dashCap = D2D1_CAP_STYLE_ROUND;
-		break;
-	case uiDrawLineCapSquare:
-		dsp.startCap = D2D1_CAP_STYLE_SQUARE;
-		dsp.endCap = D2D1_CAP_STYLE_SQUARE;
-		dsp.dashCap = D2D1_CAP_STYLE_SQUARE;
-		break;
-	}
-	switch (sp->Join) {
-	case uiDrawLineJoinMiter:
-		dsp.lineJoin = D2D1_LINE_JOIN_MITER_OR_BEVEL;
-		dsp.miterLimit = sp->MiterLimit;
-		break;
-	case uiDrawLineJoinRound:
-		dsp.lineJoin = D2D1_LINE_JOIN_ROUND;
-		break;
-	case uiDrawLineJoinBevel:
-		dsp.lineJoin = D2D1_LINE_JOIN_BEVEL;
-		break;
-	}
-	dsp.dashStyle = D2D1_DASH_STYLE_SOLID;
-	dashes = NULL;
-	// note that dash widths and the dash phase are scaled up by the thickness by Direct2D
-	// TODO be sure to formally document this
-	if (sp->NumDashes != 0) {
-		dsp.dashStyle = D2D1_DASH_STYLE_CUSTOM;
-		dashes = (FLOAT *) uiAlloc(sp->NumDashes * sizeof (FLOAT), "FLOAT[]");
-		for (i = 0; i < sp->NumDashes; i++)
-			dashes[i] = sp->Dashes[i] / sp->Thickness;
-	}
-	dsp.dashOffset = sp->DashPhase / sp->Thickness;
-	hr = d2dfactory->CreateStrokeStyle(
-		&dsp,
-		dashes,
-		sp->NumDashes,
-		&style);
-	if (hr != S_OK)
-		logHRESULT(L"error creating stroke style", hr);
-	if (sp->NumDashes != 0)
-		uiFree(dashes);
-
-	cliplayer = applyClip(c);
-	c->rt->DrawGeometry(
-		pathGeometry(p),
-		brush,
-		sp->Thickness,
-		style);
-	unapplyClip(c, cliplayer);
-
-	style->Release();
-	brush->Release();
-}
-
-void uiDrawFill(uiDrawContext *c, uiDrawPath *p, uiDrawBrush *b)
-{
-	ID2D1Brush *brush;
-	ID2D1Layer *cliplayer;
-
-	brush = makeBrush(b, c->rt);
-	cliplayer = applyClip(c);
-	c->rt->FillGeometry(
-		pathGeometry(p),
-		brush,
-		NULL);
-	unapplyClip(c, cliplayer);
-	brush->Release();
-}
-
-void uiDrawTransform(uiDrawContext *c, uiDrawMatrix *m)
-{
-	D2D1_MATRIX_3X2_F dm, cur;
-
-	c->rt->GetTransform(&cur);
-	m2d(m, &dm);
-	// you would think we have to do already * m, right?
-	// WRONG! we have to do m * already
-	// why? a few reasons
-	// a) this lovely comment in cairo's source - http://cgit.freedesktop.org/cairo/tree/src/cairo-matrix.c?id=0537479bd1d4c5a3bc0f6f41dec4deb98481f34a#n330
-	// 	Direct2D uses column vectors and I don't know if this is even documented
-	// b) that's what Core Graphics does
-	// TODO see if Microsoft says to do this
-	dm = dm * cur;		// for whatever reason operator * is defined but not operator *=
-	c->rt->SetTransform(&dm);
-}
-
-void uiDrawClip(uiDrawContext *c, uiDrawPath *path)
-{
-	ID2D1PathGeometry *newPath;
-	ID2D1GeometrySink *newSink;
-	HRESULT hr;
-
-	// if there's no current clip, borrow the path
-	if (c->currentClip == NULL) {
-		c->currentClip = pathGeometry(path);
-		// we have to take our own reference to that clip
-		c->currentClip->AddRef();
-		return;
-	}
-
-	// otherwise we have to intersect the current path with the new one
-	// we do that into a new path, and then replace c->currentClip with that new path
-	hr = d2dfactory->CreatePathGeometry(&newPath);
-	if (hr != S_OK)
-		logHRESULT(L"error creating new path", hr);
-	hr = newPath->Open(&newSink);
-	if (hr != S_OK)
-		logHRESULT(L"error opening new path", hr);
-	hr = c->currentClip->CombineWithGeometry(
-		pathGeometry(path),
-		D2D1_COMBINE_MODE_INTERSECT,
-		NULL,
-		// TODO is this correct or can this be set per target?
-		D2D1_DEFAULT_FLATTENING_TOLERANCE,
-		newSink);
-	if (hr != S_OK)
-		logHRESULT(L"error intersecting old path with new path", hr);
-	hr = newSink->Close();
-	if (hr != S_OK)
-		logHRESULT(L"error closing new path", hr);
-	newSink->Release();
-
-	// okay we have the new clip; we just need to replace the old one with it
-	c->currentClip->Release();
-	c->currentClip = newPath;
-	// we have a reference already; no need for another
-}
-
-struct drawState {
-	ID2D1DrawingStateBlock *dsb;
-	ID2D1PathGeometry *clip;
-};
-
-void uiDrawSave(uiDrawContext *c)
-{
-	struct drawState state;
-	HRESULT hr;
-
-	hr = d2dfactory->CreateDrawingStateBlock(
-		// TODO verify that these are correct
-		NULL,
-		NULL,
-		&(state.dsb));
-	if (hr != S_OK)
-		logHRESULT(L"error creating drawing state block", hr);
-	c->rt->SaveDrawingState(state.dsb);
-
-	// if we have a clip, we need to hold another reference to it
-	if (c->currentClip != NULL)
-		c->currentClip->AddRef();
-	state.clip = c->currentClip;		// even if NULL assign it
-
-	c->states->push_back(state);
-}
-
-void uiDrawRestore(uiDrawContext *c)
-{
-	struct drawState state;
-
-	state = (*(c->states))[c->states->size() - 1];
-	c->states->pop_back();
-
-	c->rt->RestoreDrawingState(state.dsb);
-	state.dsb->Release();
-
-	// if we have a current clip, we need to drop it
-	if (c->currentClip != NULL)
-		c->currentClip->Release();
-	// no need to explicitly addref or release; just transfer the ref
-	c->currentClip = state.clip;
-}
-
-
-// bitmap API
-
-uiDrawBitmap* uiDrawNewBitmap(uiDrawContext* c, int width, int height, int alpha)
-{
-    uiDrawBitmap* bmp;
-    HRESULT hr;
-
-    bmp = uiNew(uiDrawBitmap);
-
-    D2D1_BITMAP_PROPERTIES bp2 = D2D1::BitmapProperties();
-    bp2.dpiX = 0;
-    bp2.dpiY = 0;
-    bp2.pixelFormat = D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM,
-                                        alpha ? D2D1_ALPHA_MODE_PREMULTIPLIED : D2D1_ALPHA_MODE_IGNORE);
-
-    //c->rt->BeginDraw();
-
-    hr = c->rt->CreateBitmap(D2D1::SizeU(width,height), NULL, 0, &bp2, &bmp->bmp);
-    if (hr != S_OK)
-		logHRESULT(L"error creating bitmap", hr);
-
-    //c->rt->EndDraw();
-
-    bmp->Width = width;
-    bmp->Height = height;
-    bmp->Stride = width*4;
-
-    return bmp;
-}
-
-void uiDrawBitmapUpdate(uiDrawBitmap* bmp, const void* data)
-{
-    D2D1_RECT_U rekt = D2D1::RectU(0, 0, bmp->Width, bmp->Height);
-    bmp->bmp->CopyFromMemory(&rekt, data, bmp->Stride);
-}
-
-void uiDrawBitmapDraw(uiDrawContext* c, uiDrawBitmap* bmp, uiRect* srcrect, uiRect* dstrect, int filter)
-{
-    D2D_RECT_F _srcrect = D2D1::RectF(srcrect->X, srcrect->Y, srcrect->X+srcrect->Width, srcrect->Y+srcrect->Height);
-    D2D_RECT_F _dstrect = D2D1::RectF(dstrect->X, dstrect->Y, dstrect->X+dstrect->Width, dstrect->Y+dstrect->Height);
-
-    float dpix, dpiy;
-    c->rt->GetDpi(&dpix, &dpiy);
-    _srcrect.left   = (_srcrect.left   * 96.0f) / dpix;
-    _srcrect.top    = (_srcrect.top    * 96.0f) / dpiy;
-    _srcrect.right  = (_srcrect.right  * 96.0f) / dpix;
-    _srcrect.bottom = (_srcrect.bottom * 96.0f) / dpiy;
-
-    c->rt->DrawBitmap(bmp->bmp, &_dstrect, 1.0f, filter ? D2D1_BITMAP_INTERPOLATION_MODE_LINEAR : D2D1_BITMAP_INTERPOLATION_MODE_NEAREST_NEIGHBOR, &_srcrect);
-}
-
-void uiDrawFreeBitmap(uiDrawBitmap* bmp)
-{
-    bmp->bmp->Release();
-    uiFree(bmp);
-}