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gdiplus: Avoid more cases of allocating a transformation matrix on the heap.

This commit is contained in:
Dmitry Timoshkov 2012-11-19 11:58:48 +08:00 committed by Alexandre Julliard
parent 8180b9000a
commit b9ead1a7ea
1 changed files with 13 additions and 26 deletions
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39
dlls/gdiplus/graphics.c
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@ -1439,7 +1439,7 @@ static void draw_cap(GpGraphics *graphics, COLORREF color, GpLineCap cap, REAL s
const GpCustomLineCap *custom, REAL x1, REAL y1, REAL x2, REAL y2)
{
HGDIOBJ oldbrush = NULL, oldpen = NULL;
GpMatrix *matrix = NULL;
GpMatrix matrix;
HBRUSH brush = NULL;
HPEN pen = NULL;
PointF ptf[4], *custptf = NULL;
@ -1584,16 +1584,17 @@ static void draw_cap(GpGraphics *graphics, COLORREF color, GpLineCap cap, REAL s
custpt = GdipAlloc(count * sizeof(POINT));
tp = GdipAlloc(count);
if(!custptf || !custpt || !tp || (GdipCreateMatrix(&matrix) != Ok))
if(!custptf || !custpt || !tp)
goto custend;
memcpy(custptf, custom->pathdata.Points, count * sizeof(PointF));
GdipScaleMatrix(matrix, size, size, MatrixOrderAppend);
GdipRotateMatrix(matrix, (180.0 / M_PI) * (theta - M_PI_2),
GdipSetMatrixElements(&matrix, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
GdipScaleMatrix(&matrix, size, size, MatrixOrderAppend);
GdipRotateMatrix(&matrix, (180.0 / M_PI) * (theta - M_PI_2),
MatrixOrderAppend);
GdipTranslateMatrix(matrix, x2, y2, MatrixOrderAppend);
GdipTransformMatrixPoints(matrix, custptf, count);
GdipTranslateMatrix(&matrix, x2, y2, MatrixOrderAppend);
GdipTransformMatrixPoints(&matrix, custptf, count);
transform_and_round_points(graphics, custpt, custptf, count);
@ -1613,7 +1614,6 @@ custend:
GdipFree(custptf);
GdipFree(custpt);
GdipFree(tp);
GdipDeleteMatrix(matrix);
break;
default:
break;
@ -3127,7 +3127,7 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
RECT dst_area;
GpRect src_area;
int i, x, y, src_stride, dst_stride;
GpMatrix *dst_to_src;
GpMatrix dst_to_src;
REAL m11, m12, m21, m22, mdx, mdy;
LPBYTE src_data, dst_data;
BitmapData lockeddata;
@ -3159,22 +3159,13 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
m22 = (ptf[2].Y - ptf[0].Y) / srcheight;
mdy = ptf[0].Y - m12 * srcx - m22 * srcy;
stat = GdipCreateMatrix2(m11, m12, m21, m22, mdx, mdy, &dst_to_src);
GdipSetMatrixElements(&dst_to_src, m11, m12, m21, m22, mdx, mdy);
stat = GdipInvertMatrix(&dst_to_src);
if (stat != Ok) return stat;
stat = GdipInvertMatrix(dst_to_src);
if (stat != Ok)
{
GdipDeleteMatrix(dst_to_src);
return stat;
}
dst_data = GdipAlloc(sizeof(ARGB) * (dst_area.right - dst_area.left) * (dst_area.bottom - dst_area.top));
if (!dst_data)
{
GdipDeleteMatrix(dst_to_src);
return OutOfMemory;
}
if (!dst_data) return OutOfMemory;
dst_stride = sizeof(ARGB) * (dst_area.right - dst_area.left);
@ -3187,7 +3178,6 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
if (!src_data)
{
GdipFree(dst_data);
GdipDeleteMatrix(dst_to_src);
return OutOfMemory;
}
src_stride = sizeof(ARGB) * src_area.Width;
@ -3210,7 +3200,6 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
if (src_data != dst_data)
GdipFree(src_data);
GdipFree(dst_data);
GdipDeleteMatrix(dst_to_src);
return stat;
}
@ -3219,7 +3208,7 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
src_stride, ColorAdjustTypeBitmap);
/* Transform the bits as needed to the destination. */
GdipTransformMatrixPoints(dst_to_src, dst_to_src_points, 3);
GdipTransformMatrixPoints(&dst_to_src, dst_to_src_points, 3);
x_dx = dst_to_src_points[1].X - dst_to_src_points[0].X;
x_dy = dst_to_src_points[1].Y - dst_to_src_points[0].Y;
@ -3246,8 +3235,6 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
}
}
GdipDeleteMatrix(dst_to_src);
GdipFree(src_data);
stat = alpha_blend_pixels(graphics, dst_area.left, dst_area.top,