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nanosvg: Sync with upstream 93ce879 

93ce879dc4
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Rémi Verschelde 2024-04-05 11:19:09 +02:00
parent 1a9b5b7c99
commit abee48d063
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GPG Key ID: C3336907360768E1
3 changed files with 60 additions and 30 deletions
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2
thirdparty/README.md vendored
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@ -400,7 +400,7 @@ Collection of single-file libraries used in Godot components.
## nanosvg
- Upstream: https://github.com/memononen/nanosvg
- Version: git (f0a3e1034dd22e2e87e5db22401e44998383124e, 2022)
- Version: git (93ce879dc4c04a3ef1758428ec80083c38610b1f, 2023)
- License: zlib
Files extracted from the upstream source:

70
thirdparty/nanosvg/nanosvg.h vendored
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@ -72,6 +72,7 @@ extern "C" {
*/
enum NSVGpaintType {
NSVG_PAINT_UNDEF = -1,
NSVG_PAINT_NONE = 0,
NSVG_PAINT_COLOR = 1,
NSVG_PAINT_LINEAR_GRADIENT = 2,
@ -119,7 +120,7 @@ typedef struct NSVGgradient {
} NSVGgradient;
typedef struct NSVGpaint {
char type;
signed char type;
union {
unsigned int color;
NSVGgradient* gradient;
@ -143,14 +144,17 @@ typedef struct NSVGshape
float opacity; // Opacity of the shape.
float strokeWidth; // Stroke width (scaled).
float strokeDashOffset; // Stroke dash offset (scaled).
float strokeDashArray[8]; // Stroke dash array (scaled).
char strokeDashCount; // Number of dash values in dash array.
float strokeDashArray[8]; // Stroke dash array (scaled).
char strokeDashCount; // Number of dash values in dash array.
char strokeLineJoin; // Stroke join type.
char strokeLineCap; // Stroke cap type.
float miterLimit; // Miter limit
char fillRule; // Fill rule, see NSVGfillRule.
unsigned char flags; // Logical or of NSVG_FLAGS_* flags
float bounds[4]; // Tight bounding box of the shape [minx,miny,maxx,maxy].
char fillGradient[64]; // Optional 'id' of fill gradient
char strokeGradient[64]; // Optional 'id' of stroke gradient
float xform[6]; // Root transformation for fill/stroke gradient
NSVGpath* paths; // Linked list of paths in the image.
struct NSVGshape* next; // Pointer to next shape, or NULL if last element.
} NSVGshape;
@ -394,7 +398,7 @@ typedef struct NSVGgradientData
{
char id[64];
char ref[64];
char type;
signed char type;
union {
NSVGlinearData linear;
NSVGradialData radial;
@ -814,9 +818,8 @@ static NSVGgradientData* nsvg__findGradientData(NSVGparser* p, const char* id)
return NULL;
}
static NSVGgradient* nsvg__createGradient(NSVGparser* p, const char* id, const float* localBounds, char* paintType)
static NSVGgradient* nsvg__createGradient(NSVGparser* p, const char* id, const float* localBounds, float *xform, signed char* paintType)
{
NSVGattrib* attr = nsvg__getAttr(p);
NSVGgradientData* data = NULL;
NSVGgradientData* ref = NULL;
NSVGgradientStop* stops = NULL;
@ -891,7 +894,7 @@ static NSVGgradient* nsvg__createGradient(NSVGparser* p, const char* id, const f
}
nsvg__xformMultiply(grad->xform, data->xform);
nsvg__xformMultiply(grad->xform, attr->xform);
nsvg__xformMultiply(grad->xform, xform);
grad->spread = data->spread;
memcpy(grad->stops, stops, nstops*sizeof(NSVGgradientStop));
@ -955,6 +958,9 @@ static void nsvg__addShape(NSVGparser* p)
memset(shape, 0, sizeof(NSVGshape));
memcpy(shape->id, attr->id, sizeof shape->id);
memcpy(shape->fillGradient, attr->fillGradient, sizeof shape->fillGradient);
memcpy(shape->strokeGradient, attr->strokeGradient, sizeof shape->strokeGradient);
memcpy(shape->xform, attr->xform, sizeof shape->xform);
scale = nsvg__getAverageScale(attr->xform);
shape->strokeWidth = attr->strokeWidth * scale;
shape->strokeDashOffset = attr->strokeDashOffset * scale;
@ -990,13 +996,7 @@ static void nsvg__addShape(NSVGparser* p)
shape->fill.color = attr->fillColor;
shape->fill.color |= (unsigned int)(attr->fillOpacity*255) << 24;
} else if (attr->hasFill == 2) {
float inv[6], localBounds[4];
nsvg__xformInverse(inv, attr->xform);
nsvg__getLocalBounds(localBounds, shape, inv);
shape->fill.gradient = nsvg__createGradient(p, attr->fillGradient, localBounds, &shape->fill.type);
if (shape->fill.gradient == NULL) {
shape->fill.type = NSVG_PAINT_NONE;
}
shape->fill.type = NSVG_PAINT_UNDEF;
}
// Set stroke
@ -1007,12 +1007,7 @@ static void nsvg__addShape(NSVGparser* p)
shape->stroke.color = attr->strokeColor;
shape->stroke.color |= (unsigned int)(attr->strokeOpacity*255) << 24;
} else if (attr->hasStroke == 2) {
float inv[6], localBounds[4];
nsvg__xformInverse(inv, attr->xform);
nsvg__getLocalBounds(localBounds, shape, inv);
shape->stroke.gradient = nsvg__createGradient(p, attr->strokeGradient, localBounds, &shape->stroke.type);
if (shape->stroke.gradient == NULL)
shape->stroke.type = NSVG_PAINT_NONE;
shape->stroke.type = NSVG_PAINT_UNDEF;
}
// Set flags
@ -2641,7 +2636,7 @@ static void nsvg__parseSVG(NSVGparser* p, const char** attr)
}
}
static void nsvg__parseGradient(NSVGparser* p, const char** attr, char type)
static void nsvg__parseGradient(NSVGparser* p, const char** attr, signed char type)
{
int i;
NSVGgradientData* grad = (NSVGgradientData*)malloc(sizeof(NSVGgradientData));
@ -2966,6 +2961,36 @@ static void nsvg__scaleToViewbox(NSVGparser* p, const char* units)
}
}
static void nsvg__createGradients(NSVGparser* p)
{
NSVGshape* shape;
for (shape = p->image->shapes; shape != NULL; shape = shape->next) {
if (shape->fill.type == NSVG_PAINT_UNDEF) {
if (shape->fillGradient[0] != '\0') {
float inv[6], localBounds[4];
nsvg__xformInverse(inv, shape->xform);
nsvg__getLocalBounds(localBounds, shape, inv);
shape->fill.gradient = nsvg__createGradient(p, shape->fillGradient, localBounds, shape->xform, &shape->fill.type);
}
if (shape->fill.type == NSVG_PAINT_UNDEF) {
shape->fill.type = NSVG_PAINT_NONE;
}
}
if (shape->stroke.type == NSVG_PAINT_UNDEF) {
if (shape->strokeGradient[0] != '\0') {
float inv[6], localBounds[4];
nsvg__xformInverse(inv, shape->xform);
nsvg__getLocalBounds(localBounds, shape, inv);
shape->stroke.gradient = nsvg__createGradient(p, shape->strokeGradient, localBounds, shape->xform, &shape->stroke.type);
}
if (shape->stroke.type == NSVG_PAINT_UNDEF) {
shape->stroke.type = NSVG_PAINT_NONE;
}
}
}
}
NSVGimage* nsvgParse(char* input, const char* units, float dpi)
{
NSVGparser* p;
@ -2979,6 +3004,9 @@ NSVGimage* nsvgParse(char* input, const char* units, float dpi)
nsvg__parseXML(input, nsvg__startElement, nsvg__endElement, nsvg__content, p);
// Create gradients after all definitions have been parsed
nsvg__createGradients(p);
// Scale to viewBox
nsvg__scaleToViewbox(p, units);

18
thirdparty/nanosvg/nanosvgrast.h vendored
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@ -114,7 +114,7 @@ typedef struct NSVGmemPage {
} NSVGmemPage;
typedef struct NSVGcachedPaint {
char type;
signed char type;
char spread;
float xform[6];
unsigned int colors[256];
@ -331,6 +331,7 @@ static float nsvg__normalize(float *x, float* y)
}
static float nsvg__absf(float x) { return x < 0 ? -x : x; }
static float nsvg__roundf(float x) { return (x >= 0) ? floorf(x + 0.5) : ceilf(x - 0.5); }
static void nsvg__flattenCubicBez(NSVGrasterizer* r,
float x1, float y1, float x2, float y2,
@ -353,8 +354,8 @@ static void nsvg__flattenCubicBez(NSVGrasterizer* r,
dx = x4 - x1;
dy = y4 - y1;
d2 = nsvg__absf(((x2 - x4) * dy - (y2 - y4) * dx));
d3 = nsvg__absf(((x3 - x4) * dy - (y3 - y4) * dx));
d2 = nsvg__absf((x2 - x4) * dy - (y2 - y4) * dx);
d3 = nsvg__absf((x3 - x4) * dy - (y3 - y4) * dx);
if ((d2 + d3)*(d2 + d3) < r->tessTol * (dx*dx + dy*dy)) {
nsvg__addPathPoint(r, x4, y4, type);
@ -872,10 +873,10 @@ static NSVGactiveEdge* nsvg__addActive(NSVGrasterizer* r, NSVGedge* e, float sta
// STBTT_assert(e->y0 <= start_point);
// round dx down to avoid going too far
if (dxdy < 0)
z->dx = (int)(-floorf(NSVG__FIX * -dxdy));
z->dx = (int)(-nsvg__roundf(NSVG__FIX * -dxdy));
else
z->dx = (int)floorf(NSVG__FIX * dxdy);
z->x = (int)floorf(NSVG__FIX * (e->x0 + dxdy * (startPoint - e->y0)));
z->dx = (int)nsvg__roundf(NSVG__FIX * dxdy);
z->x = (int)nsvg__roundf(NSVG__FIX * (e->x0 + dxdy * (startPoint - e->y0)));
// z->x -= off_x * FIX;
z->ey = e->y1;
z->next = 0;
@ -1282,9 +1283,10 @@ static void nsvg__initPaint(NSVGcachedPaint* cache, NSVGpaint* paint, float opac
if (grad->nstops == 0) {
for (i = 0; i < 256; i++)
cache->colors[i] = 0;
} if (grad->nstops == 1) {
} else if (grad->nstops == 1) {
unsigned int color = nsvg__applyOpacity(grad->stops[0].color, opacity);
for (i = 0; i < 256; i++)
cache->colors[i] = nsvg__applyOpacity(grad->stops[i].color, opacity);
cache->colors[i] = color;
} else {
unsigned int ca, cb = 0;
float ua, ub, du, u;