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reactos/dll/win32/gdiplus/brush.c
Amine Khaldi 89f10a28f7 [GDIPLUS] Sync with Wine Staging 4.0. CORE-15682
2019-01-25 13:21:54 +01:00

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/*
* Copyright (C) 2007 Google (Evan Stade)
* Copyright (C) 2003-2004,2007 Novell, Inc. http://www.novell.com (Ravindra (rkumar@novell.com))
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wingdi.h"
#define COBJMACROS
#include "objbase.h"
#include "olectl.h"
#include "ole2.h"
#include "gdiplus.h"
#include "gdiplus_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
#ifdef __REACTOS__
/*
Unix stuff
Code from http://www.johndcook.com/blog/2009/01/19/stand-alone-error-function-erf/
*/
double erf(double x)
{
const float a1 = 0.254829592f;
const float a2 = -0.284496736f;
const float a3 = 1.421413741f;
const float a4 = -1.453152027f;
const float a5 = 1.061405429f;
const float p = 0.3275911f;
float t, y, sign;
/* Save the sign of x */
sign = 1;
if (x < 0)
sign = -1;
x = abs(x);
/* A & S 7.1.26 */
t = 1.0/(1.0 + p*x);
y = 1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x);
return sign*y;
}
#endif
/******************************************************************************
* GdipCloneBrush [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCloneBrush(GpBrush *brush, GpBrush **clone)
{
TRACE("(%p, %p)\n", brush, clone);
if(!brush || !clone)
return InvalidParameter;
switch(brush->bt){
case BrushTypeSolidColor:
{
*clone = heap_alloc_zero(sizeof(GpSolidFill));
if (!*clone) return OutOfMemory;
memcpy(*clone, brush, sizeof(GpSolidFill));
break;
}
case BrushTypeHatchFill:
{
GpHatch *hatch = (GpHatch*)brush;
return GdipCreateHatchBrush(hatch->hatchstyle, hatch->forecol, hatch->backcol, (GpHatch**)clone);
}
case BrushTypePathGradient:{
GpPathGradient *src, *dest;
INT count, pcount;
GpStatus stat;
*clone = heap_alloc_zero(sizeof(GpPathGradient));
if (!*clone) return OutOfMemory;
src = (GpPathGradient*) brush,
dest = (GpPathGradient*) *clone;
memcpy(dest, src, sizeof(GpPathGradient));
stat = GdipClonePath(src->path, &dest->path);
if(stat != Ok){
heap_free(dest);
return stat;
}
dest->transform = src->transform;
/* blending */
count = src->blendcount;
dest->blendcount = count;
dest->blendfac = heap_alloc_zero(count * sizeof(REAL));
dest->blendpos = heap_alloc_zero(count * sizeof(REAL));
dest->surroundcolors = heap_alloc_zero(dest->surroundcolorcount * sizeof(ARGB));
pcount = dest->pblendcount;
if (pcount)
{
dest->pblendcolor = heap_alloc_zero(pcount * sizeof(ARGB));
dest->pblendpos = heap_alloc_zero(pcount * sizeof(REAL));
}
if(!dest->blendfac || !dest->blendpos || !dest->surroundcolors ||
(pcount && (!dest->pblendcolor || !dest->pblendpos))){
GdipDeletePath(dest->path);
heap_free(dest->blendfac);
heap_free(dest->blendpos);
heap_free(dest->surroundcolors);
heap_free(dest->pblendcolor);
heap_free(dest->pblendpos);
heap_free(dest);
return OutOfMemory;
}
memcpy(dest->blendfac, src->blendfac, count * sizeof(REAL));
memcpy(dest->blendpos, src->blendpos, count * sizeof(REAL));
memcpy(dest->surroundcolors, src->surroundcolors, dest->surroundcolorcount * sizeof(ARGB));
if (pcount)
{
memcpy(dest->pblendcolor, src->pblendcolor, pcount * sizeof(ARGB));
memcpy(dest->pblendpos, src->pblendpos, pcount * sizeof(REAL));
}
break;
}
case BrushTypeLinearGradient:{
GpLineGradient *dest, *src;
INT count, pcount;
dest = heap_alloc_zero(sizeof(GpLineGradient));
if(!dest) return OutOfMemory;
src = (GpLineGradient*)brush;
memcpy(dest, src, sizeof(GpLineGradient));
count = dest->blendcount;
dest->blendfac = heap_alloc_zero(count * sizeof(REAL));
dest->blendpos = heap_alloc_zero(count * sizeof(REAL));
pcount = dest->pblendcount;
if (pcount)
{
dest->pblendcolor = heap_alloc_zero(pcount * sizeof(ARGB));
dest->pblendpos = heap_alloc_zero(pcount * sizeof(REAL));
}
if (!dest->blendfac || !dest->blendpos ||
(pcount && (!dest->pblendcolor || !dest->pblendpos)))
{
heap_free(dest->blendfac);
heap_free(dest->blendpos);
heap_free(dest->pblendcolor);
heap_free(dest->pblendpos);
heap_free(dest);
return OutOfMemory;
}
dest->transform = src->transform;
memcpy(dest->blendfac, src->blendfac, count * sizeof(REAL));
memcpy(dest->blendpos, src->blendpos, count * sizeof(REAL));
if (pcount)
{
memcpy(dest->pblendcolor, src->pblendcolor, pcount * sizeof(ARGB));
memcpy(dest->pblendpos, src->pblendpos, pcount * sizeof(REAL));
}
*clone = &dest->brush;
break;
}
case BrushTypeTextureFill:
{
GpStatus stat;
GpTexture *texture = (GpTexture*)brush;
GpTexture *new_texture;
UINT width, height;
stat = GdipGetImageWidth(texture->image, &width);
if (stat != Ok) return stat;
stat = GdipGetImageHeight(texture->image, &height);
if (stat != Ok) return stat;
stat = GdipCreateTextureIA(texture->image, texture->imageattributes, 0, 0, width, height, &new_texture);
if (stat == Ok)
{
new_texture->transform = texture->transform;
*clone = &new_texture->brush;
}
else
*clone = NULL;
return stat;
}
default:
ERR("not implemented for brush type %d\n", brush->bt);
return NotImplemented;
}
TRACE("<-- %p\n", *clone);
return Ok;
}
static const char HatchBrushes[][8] = {
{ 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HatchStyleHorizontal */
{ 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HatchStyleVertical */
{ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }, /* HatchStyleForwardDiagonal */
{ 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }, /* HatchStyleBackwardDiagonal */
{ 0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08 }, /* HatchStyleCross */
{ 0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 }, /* HatchStyleDiagonalCross */
{ 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x80 }, /* HatchStyle05Percent */
{ 0x00, 0x02, 0x00, 0x88, 0x00, 0x20, 0x00, 0x88 }, /* HatchStyle10Percent */
{ 0x00, 0x22, 0x00, 0xcc, 0x00, 0x22, 0x00, 0xcc }, /* HatchStyle20Percent */
{ 0x00, 0xcc, 0x00, 0xcc, 0x00, 0xcc, 0x00, 0xcc }, /* HatchStyle25Percent */
{ 0x00, 0xcc, 0x04, 0xcc, 0x00, 0xcc, 0x40, 0xcc }, /* HatchStyle30Percent */
{ 0x44, 0xcc, 0x22, 0xcc, 0x44, 0xcc, 0x22, 0xcc }, /* HatchStyle40Percent */
{ 0x55, 0xcc, 0x55, 0xcc, 0x55, 0xcc, 0x55, 0xcc }, /* HatchStyle50Percent */
{ 0x55, 0xcd, 0x55, 0xee, 0x55, 0xdc, 0x55, 0xee }, /* HatchStyle60Percent */
{ 0x55, 0xdd, 0x55, 0xff, 0x55, 0xdd, 0x55, 0xff }, /* HatchStyle70Percent */
{ 0x55, 0xff, 0x55, 0xff, 0x55, 0xff, 0x55, 0xff }, /* HatchStyle75Percent */
{ 0x55, 0xff, 0x59, 0xff, 0x55, 0xff, 0x99, 0xff }, /* HatchStyle80Percent */
{ 0x77, 0xff, 0xdd, 0xff, 0x77, 0xff, 0xfd, 0xff }, /* HatchStyle90Percent */
{ 0x11, 0x22, 0x44, 0x88, 0x11, 0x22, 0x44, 0x88 }, /* HatchStyleLightDownwardDiagonal */
{ 0x88, 0x44, 0x22, 0x11, 0x88, 0x44, 0x22, 0x11 }, /* HatchStyleLightUpwardDiagonal */
{ 0x99, 0x33, 0x66, 0xcc, 0x99, 0x33, 0x66, 0xcc }, /* HatchStyleDarkDownwardDiagonal */
{ 0xcc, 0x66, 0x33, 0x99, 0xcc, 0x66, 0x33, 0x99 }, /* HatchStyleDarkUpwardDiagonal */
{ 0xc1, 0x83, 0x07, 0x0e, 0x1c, 0x38, 0x70, 0xe0 }, /* HatchStyleWideDownwardDiagonal */
{ 0xe0, 0x70, 0x38, 0x1c, 0x0e, 0x07, 0x83, 0xc1 }, /* HatchStyleWideUpwardDiagonal */
{ 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88 }, /* HatchStyleLightVertical */
{ 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff }, /* HatchStyleLightHorizontal */
{ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa }, /* HatchStyleNarrowVertical */
{ 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff }, /* HatchStyleNarrowHorizontal */
{ 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc }, /* HatchStyleDarkVertical */
{ 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0xff }, /* HatchStyleDarkHorizontal */
};
GpStatus get_hatch_data(GpHatchStyle hatchstyle, const char **result)
{
if (hatchstyle < ARRAY_SIZE(HatchBrushes))
{
*result = HatchBrushes[hatchstyle];
return Ok;
}
else
return NotImplemented;
}
/******************************************************************************
* GdipCreateHatchBrush [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCreateHatchBrush(GpHatchStyle hatchstyle, ARGB forecol, ARGB backcol, GpHatch **brush)
{
TRACE("(%d, %d, %d, %p)\n", hatchstyle, forecol, backcol, brush);
if(!brush) return InvalidParameter;
if(hatchstyle < HatchStyleMin || hatchstyle > HatchStyleMax)
return InvalidParameter;
*brush = heap_alloc_zero(sizeof(GpHatch));
if (!*brush) return OutOfMemory;
(*brush)->brush.bt = BrushTypeHatchFill;
(*brush)->forecol = forecol;
(*brush)->backcol = backcol;
(*brush)->hatchstyle = hatchstyle;
TRACE("<-- %p\n", *brush);
return Ok;
}
static GpStatus create_line_brush(const GpRectF *rect, ARGB startcolor, ARGB endcolor,
GpWrapMode wrap, GpLineGradient **line)
{
*line = heap_alloc_zero(sizeof(GpLineGradient));
if(!*line) return OutOfMemory;
(*line)->brush.bt = BrushTypeLinearGradient;
(*line)->startcolor = startcolor;
(*line)->endcolor = endcolor;
(*line)->wrap = wrap;
(*line)->gamma = FALSE;
(*line)->rect = *rect;
(*line)->blendcount = 1;
(*line)->blendfac = heap_alloc_zero(sizeof(REAL));
(*line)->blendpos = heap_alloc_zero(sizeof(REAL));
if (!(*line)->blendfac || !(*line)->blendpos)
{
heap_free((*line)->blendfac);
heap_free((*line)->blendpos);
heap_free(*line);
*line = NULL;
return OutOfMemory;
}
(*line)->blendfac[0] = 1.0f;
(*line)->blendpos[0] = 1.0f;
(*line)->pblendcolor = NULL;
(*line)->pblendpos = NULL;
(*line)->pblendcount = 0;
GdipSetMatrixElements(&(*line)->transform, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f);
return Ok;
}
static void linegradient_init_transform(const GpPointF *startpoint, const GpPointF *endpoint, GpLineGradient *line)
{
float trans_x = line->rect.X + (line->rect.Width / 2.f);
float trans_y = line->rect.Y + (line->rect.Height / 2.f);
float dx = endpoint->X - startpoint->X;
float dy = endpoint->Y - startpoint->Y;
float t_cos, t_sin, w_ratio, h_ratio;
float h;
GpMatrix rot;
h = sqrtf(dx * dx + dy * dy);
t_cos = dx / h;
t_sin = dy / h;
w_ratio = (fabs(t_cos) * line->rect.Width + fabs(t_sin) * line->rect.Height) / line->rect.Width;
h_ratio = (fabs(t_sin) * line->rect.Width + fabs(t_cos) * line->rect.Height) / line->rect.Height;
GdipSetMatrixElements(&line->transform, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
GdipSetMatrixElements(&rot, t_cos, t_sin, -1.f * t_sin, t_cos, 0, 0);
/* center about the origin */
GdipTranslateMatrix(&line->transform, -trans_x, -trans_y, MatrixOrderAppend);
/* scale to normalize gradient along gradient line (?) */
GdipScaleMatrix(&line->transform, w_ratio, h_ratio, MatrixOrderAppend);
/* rotate so the gradient is horizontal */
GdipMultiplyMatrix(&line->transform, &rot, MatrixOrderAppend);
/* restore original offset in new coords */
GdipTranslateMatrix(&line->transform, trans_x, trans_y, MatrixOrderAppend);
}
/******************************************************************************
* GdipCreateLineBrush [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCreateLineBrush(GDIPCONST GpPointF* startpoint,
GDIPCONST GpPointF* endpoint, ARGB startcolor, ARGB endcolor,
GpWrapMode wrap, GpLineGradient **line)
{
GpStatus stat;
GpRectF rect;
TRACE("(%s, %s, %x, %x, %d, %p)\n", debugstr_pointf(startpoint),
debugstr_pointf(endpoint), startcolor, endcolor, wrap, line);
if(!line || !startpoint || !endpoint || wrap == WrapModeClamp)
return InvalidParameter;
if (startpoint->X == endpoint->X && startpoint->Y == endpoint->Y)
return OutOfMemory;
rect.X = startpoint->X < endpoint->X ? startpoint->X : endpoint->X;
rect.Y = startpoint->Y < endpoint->Y ? startpoint->Y : endpoint->Y;
rect.Width = fabs(startpoint->X - endpoint->X);
rect.Height = fabs(startpoint->Y - endpoint->Y);
if (rect.Width == 0.0f)
{
rect.X -= rect.Height / 2.0f;
rect.Width = rect.Height;
}
else if (rect.Height == 0.0f)
{
rect.Y -= rect.Width / 2.0f;
rect.Height = rect.Width;
}
stat = create_line_brush(&rect, startcolor, endcolor, wrap, line);
if (stat != Ok)
return stat;
linegradient_init_transform(startpoint, endpoint, *line);
TRACE("<-- %p\n", *line);
return Ok;
}
GpStatus WINGDIPAPI GdipCreateLineBrushI(GDIPCONST GpPoint* startpoint,
GDIPCONST GpPoint* endpoint, ARGB startcolor, ARGB endcolor,
GpWrapMode wrap, GpLineGradient **line)
{
GpPointF stF;
GpPointF endF;
TRACE("(%p, %p, %x, %x, %d, %p)\n", startpoint, endpoint,
startcolor, endcolor, wrap, line);
if(!startpoint || !endpoint)
return InvalidParameter;
stF.X = (REAL)startpoint->X;
stF.Y = (REAL)startpoint->Y;
endF.X = (REAL)endpoint->X;
endF.Y = (REAL)endpoint->Y;
return GdipCreateLineBrush(&stF, &endF, startcolor, endcolor, wrap, line);
}
GpStatus WINGDIPAPI GdipCreateLineBrushFromRect(GDIPCONST GpRectF* rect,
ARGB startcolor, ARGB endcolor, LinearGradientMode mode, GpWrapMode wrap,
GpLineGradient **line)
{
float angle;
TRACE("(%p, %x, %x, %d, %d, %p)\n", rect, startcolor, endcolor, mode,
wrap, line);
if(!line || !rect)
return InvalidParameter;
switch (mode)
{
case LinearGradientModeHorizontal:
angle = 0.0f;
break;
case LinearGradientModeVertical:
angle = 90.0f;
break;
case LinearGradientModeForwardDiagonal:
angle = 45.0f;
break;
case LinearGradientModeBackwardDiagonal:
angle = 135.0f;
break;
default:
return InvalidParameter;
}
return GdipCreateLineBrushFromRectWithAngle(rect, startcolor, endcolor, angle, TRUE, wrap, line);
}
GpStatus WINGDIPAPI GdipCreateLineBrushFromRectI(GDIPCONST GpRect* rect,
ARGB startcolor, ARGB endcolor, LinearGradientMode mode, GpWrapMode wrap,
GpLineGradient **line)
{
GpRectF rectF;
TRACE("(%p, %x, %x, %d, %d, %p)\n", rect, startcolor, endcolor, mode,
wrap, line);
rectF.X = (REAL) rect->X;
rectF.Y = (REAL) rect->Y;
rectF.Width = (REAL) rect->Width;
rectF.Height = (REAL) rect->Height;
return GdipCreateLineBrushFromRect(&rectF, startcolor, endcolor, mode, wrap, line);
}
/******************************************************************************
* GdipCreateLineBrushFromRectWithAngle [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCreateLineBrushFromRectWithAngle(GDIPCONST GpRectF* rect,
ARGB startcolor, ARGB endcolor, REAL angle, BOOL isAngleScalable, GpWrapMode wrap,
GpLineGradient **line)
{
GpStatus stat;
REAL exofs, eyofs, far_x, far_y;
REAL sin_angle, cos_angle, sin_cos_angle;
GpPointF start, end;
TRACE("(%p, %x, %x, %.2f, %d, %d, %p)\n", rect, startcolor, endcolor, angle, isAngleScalable,
wrap, line);
if (!rect || !line || wrap == WrapModeClamp)
return InvalidParameter;
if (!rect->Width || !rect->Height)
return OutOfMemory;
angle = fmodf(angle, 360);
if (angle < 0)
angle += 360;
if (isAngleScalable)
{
float add_angle = 0;
while(angle >= 90) {
angle -= 180;
add_angle += M_PI;
}
if (angle != 90 && angle != -90)
angle = atan((rect->Width / rect->Height) * tan(deg2rad(angle)));
else
angle = deg2rad(angle);
angle += add_angle;
}
else
{
angle = deg2rad(angle);
}
sin_angle = sinf(angle);
cos_angle = cosf(angle);
sin_cos_angle = sin_angle * cos_angle;
far_x = rect->X + rect->Width;
far_y = rect->Y + rect->Height;
if (angle == 0.0f)
{
start.X = min(rect->X, far_x);
start.Y = rect->Y;
end.X = max(rect->X, far_x);
end.Y = rect->Y;
}
else if (sin_cos_angle >= 0)
{
start.X = min(rect->X, far_x);
start.Y = min(rect->Y, far_y);
end.X = max(rect->X, far_x);
end.Y = max(rect->Y, far_y);
}
else
{
start.X = max(rect->X, far_x);
start.Y = min(rect->Y, far_y);
end.X = min(rect->X, far_x);
end.Y = max(rect->Y, far_y);
}
stat = create_line_brush(rect, startcolor, endcolor, wrap, line);
if (stat != Ok || angle == 0.0f)
return stat;
if (sin_cos_angle >= 0)
{
exofs = rect->Height * sin_cos_angle + rect->Width * cos_angle * cos_angle;
eyofs = rect->Height * sin_angle * sin_angle + rect->Width * sin_cos_angle;
}
else
{
exofs = rect->Width * sin_angle * sin_angle + rect->Height * sin_cos_angle;
eyofs = -rect->Width * sin_cos_angle + rect->Height * sin_angle * sin_angle;
}
if (sin_angle >= 0)
{
end.X = rect->X + exofs;
end.Y = rect->Y + eyofs;
}
else
{
end.X = start.X;
end.Y = start.Y;
start.X = rect->X + exofs;
start.Y = rect->Y + eyofs;
}
linegradient_init_transform(&start, &end, *line);
return stat;
}
GpStatus WINGDIPAPI GdipCreateLineBrushFromRectWithAngleI(GDIPCONST GpRect* rect,
ARGB startcolor, ARGB endcolor, REAL angle, BOOL isAngleScalable, GpWrapMode wrap,
GpLineGradient **line)
{
TRACE("(%p, %x, %x, %.2f, %d, %d, %p)\n", rect, startcolor, endcolor, angle, isAngleScalable,
wrap, line);
return GdipCreateLineBrushFromRectI(rect, startcolor, endcolor, LinearGradientModeForwardDiagonal,
wrap, line);
}
static GpStatus create_path_gradient(GpPath *path, ARGB centercolor, GpPathGradient **grad)
{
GpRectF bounds;
if(!path || !grad)
return InvalidParameter;
if (path->pathdata.Count < 2)
return OutOfMemory;
GdipGetPathWorldBounds(path, &bounds, NULL, NULL);
*grad = heap_alloc_zero(sizeof(GpPathGradient));
if (!*grad)
{
return OutOfMemory;
}
GdipSetMatrixElements(&(*grad)->transform, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
(*grad)->blendfac = heap_alloc_zero(sizeof(REAL));
(*grad)->blendpos = heap_alloc_zero(sizeof(REAL));
(*grad)->surroundcolors = heap_alloc_zero(sizeof(ARGB));
if(!(*grad)->blendfac || !(*grad)->blendpos || !(*grad)->surroundcolors){
heap_free((*grad)->blendfac);
heap_free((*grad)->blendpos);
heap_free((*grad)->surroundcolors);
heap_free(*grad);
*grad = NULL;
return OutOfMemory;
}
(*grad)->blendfac[0] = 1.0;
(*grad)->blendpos[0] = 1.0;
(*grad)->blendcount = 1;
(*grad)->path = path;
(*grad)->brush.bt = BrushTypePathGradient;
(*grad)->centercolor = centercolor;
(*grad)->wrap = WrapModeClamp;
(*grad)->gamma = FALSE;
/* FIXME: this should be set to the "centroid" of the path by default */
(*grad)->center.X = bounds.X + bounds.Width / 2;
(*grad)->center.Y = bounds.Y + bounds.Height / 2;
(*grad)->focus.X = 0.0;
(*grad)->focus.Y = 0.0;
(*grad)->surroundcolors[0] = 0xffffffff;
(*grad)->surroundcolorcount = 1;
TRACE("<-- %p\n", *grad);
return Ok;
}
GpStatus WINGDIPAPI GdipCreatePathGradient(GDIPCONST GpPointF* points,
INT count, GpWrapMode wrap, GpPathGradient **grad)
{
GpStatus stat;
GpPath *path;
TRACE("(%p, %d, %d, %p)\n", points, count, wrap, grad);
if(!grad)
return InvalidParameter;
if(!points || count <= 0)
return OutOfMemory;
stat = GdipCreatePath(FillModeAlternate, &path);
if (stat == Ok)
{
stat = GdipAddPathLine2(path, points, count);
if (stat == Ok)
stat = create_path_gradient(path, 0xff000000, grad);
if (stat != Ok)
GdipDeletePath(path);
}
if (stat == Ok)
(*grad)->wrap = wrap;
return stat;
}
GpStatus WINGDIPAPI GdipCreatePathGradientI(GDIPCONST GpPoint* points,
INT count, GpWrapMode wrap, GpPathGradient **grad)
{
GpStatus stat;
GpPath *path;
TRACE("(%p, %d, %d, %p)\n", points, count, wrap, grad);
if(!grad)
return InvalidParameter;
if(!points || count <= 0)
return OutOfMemory;
stat = GdipCreatePath(FillModeAlternate, &path);
if (stat == Ok)
{
stat = GdipAddPathLine2I(path, points, count);
if (stat == Ok)
stat = create_path_gradient(path, 0xff000000, grad);
if (stat != Ok)
GdipDeletePath(path);
}
if (stat == Ok)
(*grad)->wrap = wrap;
return stat;
}
/******************************************************************************
* GdipCreatePathGradientFromPath [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCreatePathGradientFromPath(GDIPCONST GpPath* path,
GpPathGradient **grad)
{
GpStatus stat;
GpPath *new_path;
TRACE("(%p, %p)\n", path, grad);
if(!grad)
return InvalidParameter;
if (!path)
return OutOfMemory;
stat = GdipClonePath((GpPath*)path, &new_path);
if (stat == Ok)
{
stat = create_path_gradient(new_path, 0xffffffff, grad);
if (stat != Ok)
GdipDeletePath(new_path);
}
return stat;
}
/******************************************************************************
* GdipCreateSolidFill [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCreateSolidFill(ARGB color, GpSolidFill **sf)
{
TRACE("(%x, %p)\n", color, sf);
if(!sf) return InvalidParameter;
*sf = heap_alloc_zero(sizeof(GpSolidFill));
if (!*sf) return OutOfMemory;
(*sf)->brush.bt = BrushTypeSolidColor;
(*sf)->color = color;
TRACE("<-- %p\n", *sf);
return Ok;
}
/******************************************************************************
* GdipCreateTexture [GDIPLUS.@]
*
* PARAMS
* image [I] image to use
* wrapmode [I] optional
* texture [O] pointer to the resulting texturebrush
*
* RETURNS
* SUCCESS: Ok
* FAILURE: element of GpStatus
*/
GpStatus WINGDIPAPI GdipCreateTexture(GpImage *image, GpWrapMode wrapmode,
GpTexture **texture)
{
UINT width, height;
GpImageAttributes *attributes;
GpStatus stat;
TRACE("%p, %d %p\n", image, wrapmode, texture);
if (!(image && texture))
return InvalidParameter;
stat = GdipGetImageWidth(image, &width);
if (stat != Ok) return stat;
stat = GdipGetImageHeight(image, &height);
if (stat != Ok) return stat;
stat = GdipCreateImageAttributes(&attributes);
if (stat == Ok)
{
attributes->wrap = wrapmode;
stat = GdipCreateTextureIA(image, attributes, 0, 0, width, height,
texture);
GdipDisposeImageAttributes(attributes);
}
return stat;
}
/******************************************************************************
* GdipCreateTexture2 [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCreateTexture2(GpImage *image, GpWrapMode wrapmode,
REAL x, REAL y, REAL width, REAL height, GpTexture **texture)
{
GpImageAttributes *attributes;
GpStatus stat;
TRACE("%p %d %f %f %f %f %p\n", image, wrapmode,
x, y, width, height, texture);
stat = GdipCreateImageAttributes(&attributes);
if (stat == Ok)
{
attributes->wrap = wrapmode;
stat = GdipCreateTextureIA(image, attributes, x, y, width, height,
texture);
GdipDisposeImageAttributes(attributes);
}
return stat;
}
/******************************************************************************
* GdipCreateTextureIA [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCreateTextureIA(GpImage *image,
GDIPCONST GpImageAttributes *imageattr, REAL x, REAL y, REAL width,
REAL height, GpTexture **texture)
{
GpStatus status;
GpImage *new_image=NULL;
TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f, %p)\n", image, imageattr, x, y, width, height,
texture);
if(!image || !texture || x < 0.0 || y < 0.0 || width < 0.0 || height < 0.0)
return InvalidParameter;
*texture = NULL;
if(image->type != ImageTypeBitmap){
FIXME("not implemented for image type %d\n", image->type);
return NotImplemented;
}
status = GdipCloneBitmapArea(x, y, width, height, PixelFormatDontCare, (GpBitmap*)image, (GpBitmap**)&new_image);
if (status != Ok)
return status;
*texture = heap_alloc_zero(sizeof(GpTexture));
if (!*texture){
status = OutOfMemory;
goto exit;
}
GdipSetMatrixElements(&(*texture)->transform, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
if (imageattr)
{
status = GdipCloneImageAttributes(imageattr, &(*texture)->imageattributes);
}
else
{
status = GdipCreateImageAttributes(&(*texture)->imageattributes);
if (status == Ok)
(*texture)->imageattributes->wrap = WrapModeTile;
}
if (status == Ok)
{
(*texture)->brush.bt = BrushTypeTextureFill;
(*texture)->image = new_image;
}
exit:
if (status == Ok)
{
TRACE("<-- %p\n", *texture);
}
else
{
if (*texture)
{
GdipDisposeImageAttributes((*texture)->imageattributes);
heap_free(*texture);
*texture = NULL;
}
GdipDisposeImage(new_image);
TRACE("<-- error %u\n", status);
}
return status;
}
/******************************************************************************
* GdipCreateTextureIAI [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipCreateTextureIAI(GpImage *image, GDIPCONST GpImageAttributes *imageattr,
INT x, INT y, INT width, INT height, GpTexture **texture)
{
TRACE("(%p, %p, %d, %d, %d, %d, %p)\n", image, imageattr, x, y, width, height,
texture);
return GdipCreateTextureIA(image,imageattr,(REAL)x,(REAL)y,(REAL)width,(REAL)height,texture);
}
GpStatus WINGDIPAPI GdipCreateTexture2I(GpImage *image, GpWrapMode wrapmode,
INT x, INT y, INT width, INT height, GpTexture **texture)
{
GpImageAttributes *imageattr;
GpStatus stat;
TRACE("%p %d %d %d %d %d %p\n", image, wrapmode, x, y, width, height,
texture);
stat = GdipCreateImageAttributes(&imageattr);
if (stat == Ok)
{
imageattr->wrap = wrapmode;
stat = GdipCreateTextureIA(image, imageattr, x, y, width, height, texture);
GdipDisposeImageAttributes(imageattr);
}
return stat;
}
GpStatus WINGDIPAPI GdipGetBrushType(GpBrush *brush, GpBrushType *type)
{
TRACE("(%p, %p)\n", brush, type);
if(!brush || !type) return InvalidParameter;
*type = brush->bt;
return Ok;
}
GpStatus WINGDIPAPI GdipGetHatchBackgroundColor(GpHatch *brush, ARGB *backcol)
{
TRACE("(%p, %p)\n", brush, backcol);
if(!brush || !backcol) return InvalidParameter;
*backcol = brush->backcol;
return Ok;
}
GpStatus WINGDIPAPI GdipGetHatchForegroundColor(GpHatch *brush, ARGB *forecol)
{
TRACE("(%p, %p)\n", brush, forecol);
if(!brush || !forecol) return InvalidParameter;
*forecol = brush->forecol;
return Ok;
}
GpStatus WINGDIPAPI GdipGetHatchStyle(GpHatch *brush, GpHatchStyle *hatchstyle)
{
TRACE("(%p, %p)\n", brush, hatchstyle);
if(!brush || !hatchstyle) return InvalidParameter;
*hatchstyle = brush->hatchstyle;
return Ok;
}
GpStatus WINGDIPAPI GdipDeleteBrush(GpBrush *brush)
{
TRACE("(%p)\n", brush);
if(!brush) return InvalidParameter;
switch(brush->bt)
{
case BrushTypePathGradient:
GdipDeletePath(((GpPathGradient*) brush)->path);
heap_free(((GpPathGradient*) brush)->blendfac);
heap_free(((GpPathGradient*) brush)->blendpos);
heap_free(((GpPathGradient*) brush)->surroundcolors);
heap_free(((GpPathGradient*) brush)->pblendcolor);
heap_free(((GpPathGradient*) brush)->pblendpos);
break;
case BrushTypeLinearGradient:
heap_free(((GpLineGradient*)brush)->blendfac);
heap_free(((GpLineGradient*)brush)->blendpos);
heap_free(((GpLineGradient*)brush)->pblendcolor);
heap_free(((GpLineGradient*)brush)->pblendpos);
break;
case BrushTypeTextureFill:
GdipDisposeImage(((GpTexture*)brush)->image);
GdipDisposeImageAttributes(((GpTexture*)brush)->imageattributes);
heap_free(((GpTexture*)brush)->bitmap_bits);
break;
default:
break;
}
heap_free(brush);
return Ok;
}
GpStatus WINGDIPAPI GdipGetLineGammaCorrection(GpLineGradient *line,
BOOL *usinggamma)
{
TRACE("(%p, %p)\n", line, usinggamma);
if(!line || !usinggamma)
return InvalidParameter;
*usinggamma = line->gamma;
return Ok;
}
GpStatus WINGDIPAPI GdipGetLineWrapMode(GpLineGradient *brush, GpWrapMode *wrapmode)
{
TRACE("(%p, %p)\n", brush, wrapmode);
if(!brush || !wrapmode || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
*wrapmode = brush->wrap;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientBlend(GpPathGradient *brush, REAL *blend,
REAL *positions, INT count)
{
TRACE("(%p, %p, %p, %d)\n", brush, blend, positions, count);
if(!brush || !blend || !positions || count <= 0 || brush->brush.bt != BrushTypePathGradient)
return InvalidParameter;
if(count < brush->blendcount)
return InsufficientBuffer;
memcpy(blend, brush->blendfac, count*sizeof(REAL));
if(brush->blendcount > 1){
memcpy(positions, brush->blendpos, count*sizeof(REAL));
}
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientBlendCount(GpPathGradient *brush, INT *count)
{
TRACE("(%p, %p)\n", brush, count);
if(!brush || !count || brush->brush.bt != BrushTypePathGradient)
return InvalidParameter;
*count = brush->blendcount;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientCenterPoint(GpPathGradient *grad,
GpPointF *point)
{
TRACE("(%p, %p)\n", grad, point);
if(!grad || !point || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
point->X = grad->center.X;
point->Y = grad->center.Y;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientCenterPointI(GpPathGradient *grad,
GpPoint *point)
{
GpStatus ret;
GpPointF ptf;
TRACE("(%p, %p)\n", grad, point);
if(!point)
return InvalidParameter;
ret = GdipGetPathGradientCenterPoint(grad,&ptf);
if(ret == Ok){
point->X = gdip_round(ptf.X);
point->Y = gdip_round(ptf.Y);
}
return ret;
}
GpStatus WINGDIPAPI GdipGetPathGradientCenterColor(GpPathGradient *grad,
ARGB *colors)
{
TRACE("(%p,%p)\n", grad, colors);
if (!grad || !colors || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
*colors = grad->centercolor;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientFocusScales(GpPathGradient *grad,
REAL *x, REAL *y)
{
TRACE("(%p, %p, %p)\n", grad, x, y);
if(!grad || !x || !y || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
*x = grad->focus.X;
*y = grad->focus.Y;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientGammaCorrection(GpPathGradient *grad,
BOOL *gamma)
{
TRACE("(%p, %p)\n", grad, gamma);
if(!grad || !gamma || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
*gamma = grad->gamma;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientPath(GpPathGradient *grad, GpPath *path)
{
static int calls;
TRACE("(%p, %p)\n", grad, path);
if (!(calls++))
FIXME("not implemented\n");
return NotImplemented;
}
GpStatus WINGDIPAPI GdipGetPathGradientPointCount(GpPathGradient *grad,
INT *count)
{
TRACE("(%p, %p)\n", grad, count);
if(!grad || !count || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
*count = grad->path->pathdata.Count;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientRect(GpPathGradient *brush, GpRectF *rect)
{
GpStatus stat;
TRACE("(%p, %p)\n", brush, rect);
if(!brush || !rect || brush->brush.bt != BrushTypePathGradient)
return InvalidParameter;
stat = GdipGetPathWorldBounds(brush->path, rect, NULL, NULL);
return stat;
}
GpStatus WINGDIPAPI GdipGetPathGradientRectI(GpPathGradient *brush, GpRect *rect)
{
GpRectF rectf;
GpStatus stat;
TRACE("(%p, %p)\n", brush, rect);
if(!brush || !rect)
return InvalidParameter;
stat = GdipGetPathGradientRect(brush, &rectf);
if(stat != Ok) return stat;
rect->X = gdip_round(rectf.X);
rect->Y = gdip_round(rectf.Y);
rect->Width = gdip_round(rectf.Width);
rect->Height = gdip_round(rectf.Height);
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientSurroundColorsWithCount(GpPathGradient
*grad, ARGB *argb, INT *count)
{
INT i;
TRACE("(%p,%p,%p)\n", grad, argb, count);
if(!grad || !argb || !count || (*count < grad->path->pathdata.Count) || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
for (i=0; i<grad->path->pathdata.Count; i++)
{
if (i < grad->surroundcolorcount)
argb[i] = grad->surroundcolors[i];
else
argb[i] = grad->surroundcolors[grad->surroundcolorcount-1];
}
*count = grad->surroundcolorcount;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientSurroundColorCount(GpPathGradient *brush, INT *count)
{
TRACE("(%p, %p)\n", brush, count);
if (!brush || !count || brush->brush.bt != BrushTypePathGradient)
return InvalidParameter;
/* Yes, this actually returns the number of points in the path (which is the
* required size of a buffer to get the surround colors), rather than the
* number of surround colors. The real count is returned when getting the
* colors. */
*count = brush->path->pathdata.Count;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientWrapMode(GpPathGradient *brush,
GpWrapMode *wrapmode)
{
TRACE("(%p, %p)\n", brush, wrapmode);
if(!brush || !wrapmode || brush->brush.bt != BrushTypePathGradient)
return InvalidParameter;
*wrapmode = brush->wrap;
return Ok;
}
GpStatus WINGDIPAPI GdipGetSolidFillColor(GpSolidFill *sf, ARGB *argb)
{
TRACE("(%p, %p)\n", sf, argb);
if(!sf || !argb)
return InvalidParameter;
*argb = sf->color;
return Ok;
}
/******************************************************************************
* GdipGetTextureImage [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipGetTextureImage(GpTexture *brush, GpImage **image)
{
TRACE("(%p, %p)\n", brush, image);
if(!brush || !image)
return InvalidParameter;
return GdipCloneImage(brush->image, image);
}
/******************************************************************************
* GdipGetTextureTransform [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipGetTextureTransform(GpTexture *brush, GpMatrix *matrix)
{
TRACE("(%p, %p)\n", brush, matrix);
if(!brush || !matrix)
return InvalidParameter;
*matrix = brush->transform;
return Ok;
}
/******************************************************************************
* GdipGetTextureWrapMode [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipGetTextureWrapMode(GpTexture *brush, GpWrapMode *wrapmode)
{
TRACE("(%p, %p)\n", brush, wrapmode);
if(!brush || !wrapmode)
return InvalidParameter;
*wrapmode = brush->imageattributes->wrap;
return Ok;
}
/******************************************************************************
* GdipMultiplyTextureTransform [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipMultiplyTextureTransform(GpTexture* brush,
GDIPCONST GpMatrix *matrix, GpMatrixOrder order)
{
TRACE("(%p, %p, %d)\n", brush, matrix, order);
if(!brush || !matrix)
return InvalidParameter;
return GdipMultiplyMatrix(&brush->transform, matrix, order);
}
/******************************************************************************
* GdipResetTextureTransform [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipResetTextureTransform(GpTexture* brush)
{
TRACE("(%p)\n", brush);
if(!brush)
return InvalidParameter;
return GdipSetMatrixElements(&brush->transform, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
}
/******************************************************************************
* GdipScaleTextureTransform [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipScaleTextureTransform(GpTexture* brush,
REAL sx, REAL sy, GpMatrixOrder order)
{
TRACE("(%p, %.2f, %.2f, %d)\n", brush, sx, sy, order);
if(!brush)
return InvalidParameter;
return GdipScaleMatrix(&brush->transform, sx, sy, order);
}
GpStatus WINGDIPAPI GdipSetLineBlend(GpLineGradient *brush,
GDIPCONST REAL *factors, GDIPCONST REAL* positions, INT count)
{
REAL *new_blendfac, *new_blendpos;
TRACE("(%p, %p, %p, %i)\n", brush, factors, positions, count);
if(!brush || !factors || !positions || count <= 0 || brush->brush.bt != BrushTypeLinearGradient ||
(count >= 2 && (positions[0] != 0.0f || positions[count-1] != 1.0f)))
return InvalidParameter;
new_blendfac = heap_alloc_zero(count * sizeof(REAL));
new_blendpos = heap_alloc_zero(count * sizeof(REAL));
if (!new_blendfac || !new_blendpos)
{
heap_free(new_blendfac);
heap_free(new_blendpos);
return OutOfMemory;
}
memcpy(new_blendfac, factors, count * sizeof(REAL));
memcpy(new_blendpos, positions, count * sizeof(REAL));
heap_free(brush->blendfac);
heap_free(brush->blendpos);
brush->blendcount = count;
brush->blendfac = new_blendfac;
brush->blendpos = new_blendpos;
return Ok;
}
GpStatus WINGDIPAPI GdipGetLineBlend(GpLineGradient *brush, REAL *factors,
REAL *positions, INT count)
{
TRACE("(%p, %p, %p, %i)\n", brush, factors, positions, count);
if (!brush || !factors || !positions || count <= 0 || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
if (count < brush->blendcount)
return InsufficientBuffer;
memcpy(factors, brush->blendfac, brush->blendcount * sizeof(REAL));
memcpy(positions, brush->blendpos, brush->blendcount * sizeof(REAL));
return Ok;
}
GpStatus WINGDIPAPI GdipGetLineBlendCount(GpLineGradient *brush, INT *count)
{
TRACE("(%p, %p)\n", brush, count);
if (!brush || !count || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
*count = brush->blendcount;
return Ok;
}
GpStatus WINGDIPAPI GdipSetLineGammaCorrection(GpLineGradient *line,
BOOL usegamma)
{
TRACE("(%p, %d)\n", line, usegamma);
if(!line || line->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
line->gamma = usegamma;
return Ok;
}
GpStatus WINGDIPAPI GdipSetLineSigmaBlend(GpLineGradient *line, REAL focus,
REAL scale)
{
REAL factors[33];
REAL positions[33];
int num_points = 0;
int i;
const int precision = 16;
REAL erf_range; /* we use values erf(-erf_range) through erf(+erf_range) */
REAL min_erf;
REAL scale_erf;
TRACE("(%p, %0.2f, %0.2f)\n", line, focus, scale);
if(!line || focus < 0.0 || focus > 1.0 || scale < 0.0 || scale > 1.0 || line->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
/* we want 2 standard deviations */
erf_range = 2.0 / sqrt(2);
/* calculate the constants we need to normalize the error function to be
between 0.0 and scale over the range we need */
min_erf = erf(-erf_range);
scale_erf = scale / (-2.0 * min_erf);
if (focus != 0.0)
{
positions[0] = 0.0;
factors[0] = 0.0;
for (i=1; i<precision; i++)
{
positions[i] = focus * i / precision;
factors[i] = scale_erf * (erf(2 * erf_range * i / precision - erf_range) - min_erf);
}
num_points += precision;
}
positions[num_points] = focus;
factors[num_points] = scale;
num_points += 1;
if (focus != 1.0)
{
for (i=1; i<precision; i++)
{
positions[i+num_points-1] = (focus + ((1.0-focus) * i / precision));
factors[i+num_points-1] = scale_erf * (erf(erf_range - 2 * erf_range * i / precision) - min_erf);
}
num_points += precision;
positions[num_points-1] = 1.0;
factors[num_points-1] = 0.0;
}
return GdipSetLineBlend(line, factors, positions, num_points);
}
GpStatus WINGDIPAPI GdipSetLineWrapMode(GpLineGradient *line,
GpWrapMode wrap)
{
TRACE("(%p, %d)\n", line, wrap);
if(!line || wrap == WrapModeClamp || line->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
line->wrap = wrap;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientBlend(GpPathGradient *brush, GDIPCONST REAL *blend,
GDIPCONST REAL *pos, INT count)
{
REAL *new_blendfac, *new_blendpos;
TRACE("(%p,%p,%p,%i)\n", brush, blend, pos, count);
if(!brush || !blend || !pos || count <= 0 || brush->brush.bt != BrushTypePathGradient ||
(count >= 2 && (pos[0] != 0.0f || pos[count-1] != 1.0f)))
return InvalidParameter;
new_blendfac = heap_alloc_zero(count * sizeof(REAL));
new_blendpos = heap_alloc_zero(count * sizeof(REAL));
if (!new_blendfac || !new_blendpos)
{
heap_free(new_blendfac);
heap_free(new_blendpos);
return OutOfMemory;
}
memcpy(new_blendfac, blend, count * sizeof(REAL));
memcpy(new_blendpos, pos, count * sizeof(REAL));
heap_free(brush->blendfac);
heap_free(brush->blendpos);
brush->blendcount = count;
brush->blendfac = new_blendfac;
brush->blendpos = new_blendpos;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientLinearBlend(GpPathGradient *brush,
REAL focus, REAL scale)
{
REAL factors[3];
REAL positions[3];
int num_points = 0;
TRACE("(%p,%0.2f,%0.2f)\n", brush, focus, scale);
if (!brush || brush->brush.bt != BrushTypePathGradient)
return InvalidParameter;
if (focus != 0.0)
{
factors[num_points] = 0.0;
positions[num_points] = 0.0;
num_points++;
}
factors[num_points] = scale;
positions[num_points] = focus;
num_points++;
if (focus != 1.0)
{
factors[num_points] = 0.0;
positions[num_points] = 1.0;
num_points++;
}
return GdipSetPathGradientBlend(brush, factors, positions, num_points);
}
GpStatus WINGDIPAPI GdipSetPathGradientPresetBlend(GpPathGradient *brush,
GDIPCONST ARGB *blend, GDIPCONST REAL *pos, INT count)
{
ARGB *new_color;
REAL *new_pos;
TRACE("(%p,%p,%p,%i)\n", brush, blend, pos, count);
if (!brush || !blend || !pos || count < 2 || brush->brush.bt != BrushTypePathGradient ||
pos[0] != 0.0f || pos[count-1] != 1.0f)
{
return InvalidParameter;
}
new_color = heap_alloc_zero(count * sizeof(ARGB));
new_pos = heap_alloc_zero(count * sizeof(REAL));
if (!new_color || !new_pos)
{
heap_free(new_color);
heap_free(new_pos);
return OutOfMemory;
}
memcpy(new_color, blend, sizeof(ARGB) * count);
memcpy(new_pos, pos, sizeof(REAL) * count);
heap_free(brush->pblendcolor);
heap_free(brush->pblendpos);
brush->pblendcolor = new_color;
brush->pblendpos = new_pos;
brush->pblendcount = count;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientPresetBlend(GpPathGradient *brush,
ARGB *blend, REAL *pos, INT count)
{
TRACE("(%p,%p,%p,%i)\n", brush, blend, pos, count);
if (count < 0)
return OutOfMemory;
if (!brush || !blend || !pos || count < 2 || brush->brush.bt != BrushTypePathGradient)
return InvalidParameter;
if (brush->pblendcount == 0)
return GenericError;
if (count != brush->pblendcount)
{
/* Native lines up the ends of each array, and copies the destination size. */
FIXME("Braindead behavior on wrong-sized buffer not implemented.\n");
return InvalidParameter;
}
memcpy(blend, brush->pblendcolor, sizeof(ARGB) * brush->pblendcount);
memcpy(pos, brush->pblendpos, sizeof(REAL) * brush->pblendcount);
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientPresetBlendCount(GpPathGradient *brush,
INT *count)
{
TRACE("(%p,%p)\n", brush, count);
if (!brush || !count || brush->brush.bt != BrushTypePathGradient)
return InvalidParameter;
*count = brush->pblendcount;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientCenterColor(GpPathGradient *grad,
ARGB argb)
{
TRACE("(%p, %x)\n", grad, argb);
if(!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
grad->centercolor = argb;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientCenterPoint(GpPathGradient *grad,
GpPointF *point)
{
TRACE("(%p, %s)\n", grad, debugstr_pointf(point));
if(!grad || !point || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
grad->center.X = point->X;
grad->center.Y = point->Y;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientCenterPointI(GpPathGradient *grad,
GpPoint *point)
{
GpPointF ptf;
TRACE("(%p, %p)\n", grad, point);
if(!point)
return InvalidParameter;
ptf.X = (REAL)point->X;
ptf.Y = (REAL)point->Y;
return GdipSetPathGradientCenterPoint(grad,&ptf);
}
GpStatus WINGDIPAPI GdipSetPathGradientFocusScales(GpPathGradient *grad,
REAL x, REAL y)
{
TRACE("(%p, %.2f, %.2f)\n", grad, x, y);
if(!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
grad->focus.X = x;
grad->focus.Y = y;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientGammaCorrection(GpPathGradient *grad,
BOOL gamma)
{
TRACE("(%p, %d)\n", grad, gamma);
if(!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
grad->gamma = gamma;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientPath(GpPathGradient *grad, GDIPCONST GpPath *path)
{
static int calls;
TRACE("(%p, %p)\n", grad, path);
if (!(calls++))
FIXME("not implemented\n");
return NotImplemented;
}
GpStatus WINGDIPAPI GdipSetPathGradientSigmaBlend(GpPathGradient *grad,
REAL focus, REAL scale)
{
REAL factors[33];
REAL positions[33];
int num_points = 0;
int i;
const int precision = 16;
REAL erf_range; /* we use values erf(-erf_range) through erf(+erf_range) */
REAL min_erf;
REAL scale_erf;
TRACE("(%p,%0.2f,%0.2f)\n", grad, focus, scale);
if(!grad || focus < 0.0 || focus > 1.0 || scale < 0.0 || scale > 1.0 || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
/* we want 2 standard deviations */
erf_range = 2.0 / sqrt(2);
/* calculate the constants we need to normalize the error function to be
between 0.0 and scale over the range we need */
min_erf = erf(-erf_range);
scale_erf = scale / (-2.0 * min_erf);
if (focus != 0.0)
{
positions[0] = 0.0;
factors[0] = 0.0;
for (i=1; i<precision; i++)
{
positions[i] = focus * i / precision;
factors[i] = scale_erf * (erf(2 * erf_range * i / precision - erf_range) - min_erf);
}
num_points += precision;
}
positions[num_points] = focus;
factors[num_points] = scale;
num_points += 1;
if (focus != 1.0)
{
for (i=1; i<precision; i++)
{
positions[i+num_points-1] = (focus + ((1.0-focus) * i / precision));
factors[i+num_points-1] = scale_erf * (erf(erf_range - 2 * erf_range * i / precision) - min_erf);
}
num_points += precision;
positions[num_points-1] = 1.0;
factors[num_points-1] = 0.0;
}
return GdipSetPathGradientBlend(grad, factors, positions, num_points);
}
GpStatus WINGDIPAPI GdipSetPathGradientSurroundColorsWithCount(GpPathGradient
*grad, GDIPCONST ARGB *argb, INT *count)
{
ARGB *new_surroundcolors;
INT i, num_colors;
TRACE("(%p,%p,%p)\n", grad, argb, count);
if(!grad || !argb || !count || (*count <= 0) || grad->brush.bt != BrushTypePathGradient ||
(*count > grad->path->pathdata.Count))
return InvalidParameter;
num_colors = *count;
/* If all colors are the same, only store 1 color. */
if (*count > 1)
{
for (i=1; i < num_colors; i++)
if (argb[i] != argb[i-1])
break;
if (i == num_colors)
num_colors = 1;
}
new_surroundcolors = heap_alloc_zero(num_colors * sizeof(ARGB));
if (!new_surroundcolors)
return OutOfMemory;
memcpy(new_surroundcolors, argb, num_colors * sizeof(ARGB));
heap_free(grad->surroundcolors);
grad->surroundcolors = new_surroundcolors;
grad->surroundcolorcount = num_colors;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientWrapMode(GpPathGradient *grad,
GpWrapMode wrap)
{
TRACE("(%p, %d)\n", grad, wrap);
if(!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
grad->wrap = wrap;
return Ok;
}
GpStatus WINGDIPAPI GdipSetPathGradientTransform(GpPathGradient *grad,
GpMatrix *matrix)
{
TRACE("(%p,%p)\n", grad, matrix);
if (!grad || !matrix || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
grad->transform = *matrix;
return Ok;
}
GpStatus WINGDIPAPI GdipGetPathGradientTransform(GpPathGradient *grad,
GpMatrix *matrix)
{
TRACE("(%p,%p)\n", grad, matrix);
if (!grad || !matrix || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
*matrix = grad->transform;
return Ok;
}
GpStatus WINGDIPAPI GdipMultiplyPathGradientTransform(GpPathGradient *grad,
GDIPCONST GpMatrix *matrix, GpMatrixOrder order)
{
TRACE("(%p,%p,%i)\n", grad, matrix, order);
if (!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
return GdipMultiplyMatrix(&grad->transform, matrix, order);
}
GpStatus WINGDIPAPI GdipResetPathGradientTransform(GpPathGradient *grad)
{
TRACE("(%p)\n", grad);
if (!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
return GdipSetMatrixElements(&grad->transform, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
}
GpStatus WINGDIPAPI GdipRotatePathGradientTransform(GpPathGradient *grad,
REAL angle, GpMatrixOrder order)
{
TRACE("(%p,%0.2f,%i)\n", grad, angle, order);
if (!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
return GdipRotateMatrix(&grad->transform, angle, order);
}
GpStatus WINGDIPAPI GdipScalePathGradientTransform(GpPathGradient *grad,
REAL sx, REAL sy, GpMatrixOrder order)
{
TRACE("(%p,%0.2f,%0.2f,%i)\n", grad, sx, sy, order);
if (!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
return GdipScaleMatrix(&grad->transform, sx, sy, order);
}
GpStatus WINGDIPAPI GdipTranslatePathGradientTransform(GpPathGradient *grad,
REAL dx, REAL dy, GpMatrixOrder order)
{
TRACE("(%p,%0.2f,%0.2f,%i)\n", grad, dx, dy, order);
if (!grad || grad->brush.bt != BrushTypePathGradient)
return InvalidParameter;
return GdipTranslateMatrix(&grad->transform, dx, dy, order);
}
GpStatus WINGDIPAPI GdipSetSolidFillColor(GpSolidFill *sf, ARGB argb)
{
TRACE("(%p, %x)\n", sf, argb);
if(!sf)
return InvalidParameter;
sf->color = argb;
return Ok;
}
/******************************************************************************
* GdipSetTextureTransform [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipSetTextureTransform(GpTexture *texture,
GDIPCONST GpMatrix *matrix)
{
TRACE("(%p, %p)\n", texture, matrix);
if(!texture || !matrix)
return InvalidParameter;
texture->transform = *matrix;
return Ok;
}
/******************************************************************************
* GdipSetTextureWrapMode [GDIPLUS.@]
*
* WrapMode not used, only stored
*/
GpStatus WINGDIPAPI GdipSetTextureWrapMode(GpTexture *brush, GpWrapMode wrapmode)
{
TRACE("(%p, %d)\n", brush, wrapmode);
if(!brush)
return InvalidParameter;
brush->imageattributes->wrap = wrapmode;
return Ok;
}
GpStatus WINGDIPAPI GdipSetLineColors(GpLineGradient *brush, ARGB color1,
ARGB color2)
{
TRACE("(%p, %x, %x)\n", brush, color1, color2);
if(!brush || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
brush->startcolor = color1;
brush->endcolor = color2;
return Ok;
}
GpStatus WINGDIPAPI GdipGetLineColors(GpLineGradient *brush, ARGB *colors)
{
TRACE("(%p, %p)\n", brush, colors);
if(!brush || !colors || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
colors[0] = brush->startcolor;
colors[1] = brush->endcolor;
return Ok;
}
/******************************************************************************
* GdipRotateTextureTransform [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipRotateTextureTransform(GpTexture* brush, REAL angle,
GpMatrixOrder order)
{
TRACE("(%p, %.2f, %d)\n", brush, angle, order);
if(!brush)
return InvalidParameter;
return GdipRotateMatrix(&brush->transform, angle, order);
}
GpStatus WINGDIPAPI GdipSetLineLinearBlend(GpLineGradient *brush, REAL focus,
REAL scale)
{
REAL factors[3];
REAL positions[3];
int num_points = 0;
TRACE("(%p,%.2f,%.2f)\n", brush, focus, scale);
if (!brush) return InvalidParameter;
if (focus != 0.0)
{
factors[num_points] = 0.0;
positions[num_points] = 0.0;
num_points++;
}
factors[num_points] = scale;
positions[num_points] = focus;
num_points++;
if (focus != 1.0)
{
factors[num_points] = 0.0;
positions[num_points] = 1.0;
num_points++;
}
return GdipSetLineBlend(brush, factors, positions, num_points);
}
GpStatus WINGDIPAPI GdipSetLinePresetBlend(GpLineGradient *brush,
GDIPCONST ARGB *blend, GDIPCONST REAL* positions, INT count)
{
ARGB *new_color;
REAL *new_pos;
TRACE("(%p,%p,%p,%i)\n", brush, blend, positions, count);
if (!brush || !blend || !positions || count < 2 || brush->brush.bt != BrushTypeLinearGradient ||
positions[0] != 0.0f || positions[count-1] != 1.0f)
{
return InvalidParameter;
}
new_color = heap_alloc_zero(count * sizeof(ARGB));
new_pos = heap_alloc_zero(count * sizeof(REAL));
if (!new_color || !new_pos)
{
heap_free(new_color);
heap_free(new_pos);
return OutOfMemory;
}
memcpy(new_color, blend, sizeof(ARGB) * count);
memcpy(new_pos, positions, sizeof(REAL) * count);
heap_free(brush->pblendcolor);
heap_free(brush->pblendpos);
brush->pblendcolor = new_color;
brush->pblendpos = new_pos;
brush->pblendcount = count;
return Ok;
}
GpStatus WINGDIPAPI GdipGetLinePresetBlend(GpLineGradient *brush,
ARGB *blend, REAL* positions, INT count)
{
if (!brush || !blend || !positions || count < 2 || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
if (brush->pblendcount == 0)
return GenericError;
if (count < brush->pblendcount)
return InsufficientBuffer;
memcpy(blend, brush->pblendcolor, sizeof(ARGB) * brush->pblendcount);
memcpy(positions, brush->pblendpos, sizeof(REAL) * brush->pblendcount);
return Ok;
}
GpStatus WINGDIPAPI GdipGetLinePresetBlendCount(GpLineGradient *brush,
INT *count)
{
if (!brush || !count || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
*count = brush->pblendcount;
return Ok;
}
GpStatus WINGDIPAPI GdipResetLineTransform(GpLineGradient *brush)
{
TRACE("(%p)\n", brush);
if(!brush)
return InvalidParameter;
return GdipSetMatrixElements(&brush->transform, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
}
GpStatus WINGDIPAPI GdipSetLineTransform(GpLineGradient *brush,
GDIPCONST GpMatrix *matrix)
{
TRACE("(%p,%p)\n", brush, matrix);
if(!brush || !matrix)
return InvalidParameter;
brush->transform = *matrix;
return Ok;
}
GpStatus WINGDIPAPI GdipGetLineTransform(GpLineGradient *brush, GpMatrix *matrix)
{
TRACE("(%p,%p)\n", brush, matrix);
if(!brush || !matrix)
return InvalidParameter;
*matrix = brush->transform;
return Ok;
}
GpStatus WINGDIPAPI GdipScaleLineTransform(GpLineGradient *brush, REAL sx, REAL sy,
GpMatrixOrder order)
{
TRACE("(%p,%0.2f,%0.2f,%u)\n", brush, sx, sy, order);
if(!brush)
return InvalidParameter;
return GdipScaleMatrix(&brush->transform, sx, sy, order);
}
GpStatus WINGDIPAPI GdipMultiplyLineTransform(GpLineGradient *brush,
GDIPCONST GpMatrix *matrix, GpMatrixOrder order)
{
TRACE("(%p,%p,%u)\n", brush, matrix, order);
if(!brush)
return InvalidParameter;
if(!matrix)
return Ok;
return GdipMultiplyMatrix(&brush->transform, matrix, order);
}
GpStatus WINGDIPAPI GdipTranslateLineTransform(GpLineGradient *brush,
REAL dx, REAL dy, GpMatrixOrder order)
{
TRACE("(%p,%f,%f,%d)\n", brush, dx, dy, order);
if(!brush)
return InvalidParameter;
return GdipTranslateMatrix(&brush->transform, dx, dy, order);
}
/******************************************************************************
* GdipTranslateTextureTransform [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipTranslateTextureTransform(GpTexture* brush, REAL dx, REAL dy,
GpMatrixOrder order)
{
TRACE("(%p, %.2f, %.2f, %d)\n", brush, dx, dy, order);
if(!brush)
return InvalidParameter;
return GdipTranslateMatrix(&brush->transform, dx, dy, order);
}
GpStatus WINGDIPAPI GdipGetLineRect(GpLineGradient *brush, GpRectF *rect)
{
TRACE("(%p, %p)\n", brush, rect);
if(!brush || !rect || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
*rect = brush->rect;
return Ok;
}
GpStatus WINGDIPAPI GdipGetLineRectI(GpLineGradient *brush, GpRect *rect)
{
GpRectF rectF;
GpStatus ret;
TRACE("(%p, %p)\n", brush, rect);
if(!rect)
return InvalidParameter;
ret = GdipGetLineRect(brush, &rectF);
if(ret == Ok){
rect->X = gdip_round(rectF.X);
rect->Y = gdip_round(rectF.Y);
rect->Width = gdip_round(rectF.Width);
rect->Height = gdip_round(rectF.Height);
}
return ret;
}
GpStatus WINGDIPAPI GdipRotateLineTransform(GpLineGradient* brush,
REAL angle, GpMatrixOrder order)
{
static int calls;
TRACE("(%p,%0.2f,%u)\n", brush, angle, order);
if(!brush || brush->brush.bt != BrushTypeLinearGradient)
return InvalidParameter;
if(!(calls++))
FIXME("(%p, %.2f, %d) stub\n", brush, angle, order);
return NotImplemented;
}
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