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More Direct2D work. Sources and drawing re more properly defined now. Some discrepancies in cairo documentation hold up gradients for now. Zero clue how to start images.

This commit is contained in:
Pietro Gagliardi 2015-10-07 10:47:38 -04:00
parent 4d39f77dbc
commit cb4079c468
2 changed files with 73 additions and 80 deletions
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148
winarea_d2d/draw.c
View File

@ -66,44 +66,6 @@ ID2D1HwndRenderTarget *makeHWNDRenderTarget(HWND hwnd)
return rt;
}
// TODO move below the path stuff
struct uiDrawContext {
ID2D1RenderTarget *rt;
// source color
BOOL useRGB;
uint8_t r;
uint8_t g;
uint8_t b;
uint8_t a;
};
uiDrawContext *newContext(ID2D1RenderTarget *rt)
{
uiDrawContext *c;
// TODO use uiNew
c = (uiDrawContext *) malloc(sizeof (uiDrawContext));
c->rt = rt;
return c;
}
void uiDrawBeginPathRGB(uiDrawContext *c, uint8_t r, uint8_t g, uint8_t b)
{
uiDrawBeginPathRGBA(c, r, g, b, 1);
}
void uiDrawBeginPathRGBA(uiDrawContext *c, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
HRESULT hr;
c->useRGB = TRUE;
c->r = r;
c->g = g;
c->b = b;
c->a = a;
}
struct uiDrawPath {
ID2D1PathGeometry *path;
ID2D1GeometrySink *sink;
@ -286,17 +248,53 @@ void uiDrawPathEnd(uiDrawPath *p)
p->sink = NULL;
}
static ID2D1SolidColorBrush *makeBrush(uiDrawContext *c)
struct uiDrawContext {
ID2D1RenderTarget *rt;
};
uiDrawContext *newContext(ID2D1RenderTarget *rt)
{
uiDrawContext *c;
// TODO use uiNew
c = (uiDrawContext *) malloc(sizeof (uiDrawContext));
c->rt = rt;
return c;
}
static ID2D1Brush *makeSolidBrush(uiDrawBrush *b, ID2D1RenderTarget *rt, D2D1_BRUSH_PROPERTIES *props)
{
D2D1_COLOR_F color;
D2D1_BRUSH_PROPERTIES props;
ID2D1SolidColorBrush *brush;
HRESULT hr;
color.r = ((FLOAT) (c->r)) / 255;
color.g = ((FLOAT) (c->g)) / 255;
color.b = ((FLOAT) (c->b)) / 255;
color.a = ((FLOAT) (c->a)) / 255;
color.r = b->R;
color.g = b->G;
color.b = b->B;
color.a = b->A;
hr = ID2D1RenderTarget_CreateSolidColorBrush(rt,
&color,
&props,
&brush);
if (hr != S_OK)
logHRESULT("error creating solid brush in makeSolidBrush()", hr);
return (ID2D1Brush *) brush;
}
/* TODO
static ID2D1Brush *makeLinearBrush(uiDrawBrush *b, ID2D1RenderTarget *rt, D2D1_BRUSH_PROPERTIES *props)
{
}
static ID2D1Brush *makeRadialBrush(uiDrawBrush *b, ID2D1RenderTarget *rt, D2D1_BRUSH_PROPERTIES *props)
{
}
*/
static ID2D1Brush *makeBrush(uiDrawBrush *b, ID2D1RenderTarget *rt)
{
D2D1_BRUSH_PROPERTIES props;
ZeroMemory(&props, sizeof (D2D1_BRUSH_PROPERTIES));
props.opacity = 1.0;
@ -304,54 +302,44 @@ static ID2D1SolidColorBrush *makeBrush(uiDrawContext *c)
props.transform._11 = 1;
props.transform._22 = 1;
hr = ID2D1RenderTarget_CreateSolidColorBrush(c->rt,
&color,
&props,
&brush);
if (hr != S_OK)
logHRESULT("error creating brush in makeBrush()", hr);
return brush;
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
}
complain("invalid brush type %d in makeBrush()", b->Type);
return NULL; // make compiler happy
}
void uiDrawStroke(uiDrawContext *c, uiDrawStrokeParams *p)
void uiDrawStroke(uiDrawContext *c, uiDrawPath *p, uiDrawBrush *b, uiDrawStrokeParams *sp)
{
ID2D1SolidColorBrush *brush;
ID2D1Brush *brush;
HRESULT hr;
if (c->inFigure)
ID2D1GeometrySink_EndFigure(c->sink,
D2D1_FIGURE_END_OPEN);
hr = ID2D1GeometrySink_Close(c->sink);
if (hr != S_OK)
logHRESULT("error closing geometry sink in uiDrawStroke()", hr);
brush = makeBrush(c);
brush = makeBrush(b, c->rt);
ID2D1RenderTarget_DrawGeometry(c->rt,
(ID2D1Geometry *) (c->path),
(ID2D1Brush *) brush,
p->Thickness,
(ID2D1Geometry *) (p->path),
brush,
sp->Thickness,
NULL);
ID2D1SolidColorBrush_Release(brush);
ID2D1GeometrySink_Release(c->sink);
ID2D1PathGeometry_Release(c->path);
ID2D1Brush_Release(brush);
}
void uiDrawFill(uiDrawContext *c, uiDrawFillMode mode)
void uiDrawFill(uiDrawContext *c, uiDrawPath *p, uiDrawBrush *b)
{
ID2D1SolidColorBrush *brush;
ID2D1Brush *brush;
HRESULT hr;
if (c->inFigure)
ID2D1GeometrySink_EndFigure(c->sink,
D2D1_FIGURE_END_OPEN);
hr = ID2D1GeometrySink_Close(c->sink);
if (hr != S_OK)
logHRESULT("error closing geometry sink in uiDrawStroke()", hr);
brush = makeBrush(c);
brush = makeBrush(b, c->rt);
ID2D1RenderTarget_FillGeometry(c->rt,
(ID2D1Geometry *) (c->path),
(ID2D1Brush *) brush,
(ID2D1Geometry *) (p->path),
brush,
NULL);
ID2D1SolidColorBrush_Release(brush);
ID2D1GeometrySink_Release(c->sink);
ID2D1PathGeometry_Release(c->path);
ID2D1Brush_Release(brush);
}

5
winarea_d2d/ui.h
View File

@ -95,6 +95,11 @@ struct uiDrawBrush {
double OuterRadius; // radial gradients only
uiDrawBrushGradientStop *Stops;
size_t NumStops;
// TODO extend mode
// cairo: none, repeat, reflect, pad; no individual control
// Direct2D: repeat, reflect, pad; no individual control
// Core Graphics: none, pad; before and after individually
// TODO cairo documentation is inconsistent about pad
// TODO images
};