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gdiplus: Skip resampling when drawing a bitmap with no scaling/rotation.

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Vincent Povirk 2014-09-17 14:45:28 -05:00 committed by Alexandre Julliard
parent 1f12306144
commit 76a96b70f7
1 changed files with 60 additions and 38 deletions
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98
dlls/gdiplus/graphics.c
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@ -2857,6 +2857,7 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
else if (image->type == ImageTypeBitmap)
{
GpBitmap* bitmap = (GpBitmap*)image;
BOOL do_resampling = FALSE;
BOOL use_software = FALSE;
TRACE("graphics: %.2fx%.2f dpi, fmt %#x, scale %f, image: %.2fx%.2f dpi, fmt %#x, color %08x\n",
@ -2865,12 +2866,14 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
graphics->scale, image->xres, image->yres, bitmap->format,
imageAttributes ? imageAttributes->outside_color : 0);
if (imageAttributes || graphics->alpha_hdc ||
(graphics->image && graphics->image->type == ImageTypeBitmap) ||
ptf[1].Y != ptf[0].Y || ptf[2].X != ptf[0].X ||
if (ptf[1].Y != ptf[0].Y || ptf[2].X != ptf[0].X ||
ptf[1].X - ptf[0].X != srcwidth || ptf[2].Y - ptf[0].Y != srcheight ||
srcx < 0 || srcy < 0 ||
srcx + srcwidth > bitmap->width || srcy + srcheight > bitmap->height)
do_resampling = TRUE;
if (imageAttributes || graphics->alpha_hdc || do_resampling ||
(graphics->image && graphics->image->type == ImageTypeBitmap))
use_software = TRUE;
if (use_software)
@ -2881,7 +2884,7 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
int i, x, y, src_stride, dst_stride;
GpMatrix dst_to_src;
REAL m11, m12, m21, m22, mdx, mdy;
LPBYTE src_data, dst_data;
LPBYTE src_data, dst_data, dst_dyn_data=NULL;
BitmapData lockeddata;
InterpolationMode interpolation = graphics->interpolation;
PixelOffsetMode offset_mode = graphics->pixeloffset;
@ -2926,22 +2929,25 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
stat = GdipInvertMatrix(&dst_to_src);
if (stat != Ok) return stat;
dst_data = GdipAlloc(sizeof(ARGB) * (dst_area.right - dst_area.left) * (dst_area.bottom - dst_area.top));
if (!dst_data) return OutOfMemory;
dst_stride = sizeof(ARGB) * (dst_area.right - dst_area.left);
get_bitmap_sample_size(interpolation, imageAttributes->wrap,
bitmap, srcx, srcy, srcwidth, srcheight, &src_area);
if (do_resampling)
{
get_bitmap_sample_size(interpolation, imageAttributes->wrap,
bitmap, srcx, srcy, srcwidth, srcheight, &src_area);
}
else
{
/* Make sure src_area is equal in size to dst_area. */
src_area.X = srcx + dst_area.left - pti[0].x;
src_area.Y = srcy + dst_area.top - pti[0].y;
src_area.Width = dst_area.right - dst_area.left;
src_area.Height = dst_area.bottom - dst_area.top;
}
TRACE("src_area: %d x %d\n", src_area.Width, src_area.Height);
src_data = GdipAlloc(sizeof(ARGB) * src_area.Width * src_area.Height);
if (!src_data)
{
GdipFree(dst_data);
return OutOfMemory;
}
src_stride = sizeof(ARGB) * src_area.Width;
/* Read the bits we need from the source bitmap into an ARGB buffer. */
@ -2960,7 +2966,6 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
if (stat != Ok)
{
GdipFree(src_data);
GdipFree(dst_data);
return stat;
}
@ -2968,40 +2973,57 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image
src_area.Width, src_area.Height,
src_stride, ColorAdjustTypeBitmap);
/* Transform the bits as needed to the destination. */
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;
y_dx = dst_to_src_points[2].X - dst_to_src_points[0].X;
y_dy = dst_to_src_points[2].Y - dst_to_src_points[0].Y;
for (x=dst_area.left; x<dst_area.right; x++)
if (do_resampling)
{
for (y=dst_area.top; y<dst_area.bottom; y++)
/* Transform the bits as needed to the destination. */
dst_data = dst_dyn_data = GdipAlloc(sizeof(ARGB) * (dst_area.right - dst_area.left) * (dst_area.bottom - dst_area.top));
if (!dst_data)
{
GpPointF src_pointf;
ARGB *dst_color;
GdipFree(src_data);
return OutOfMemory;
}
src_pointf.X = dst_to_src_points[0].X + x * x_dx + y * y_dx;
src_pointf.Y = dst_to_src_points[0].Y + x * x_dy + y * y_dy;
dst_stride = sizeof(ARGB) * (dst_area.right - dst_area.left);
dst_color = (ARGB*)(dst_data + dst_stride * (y - dst_area.top) + sizeof(ARGB) * (x - dst_area.left));
GdipTransformMatrixPoints(&dst_to_src, dst_to_src_points, 3);
if (src_pointf.X >= srcx && src_pointf.X < srcx + srcwidth && src_pointf.Y >= srcy && src_pointf.Y < srcy+srcheight)
*dst_color = resample_bitmap_pixel(&src_area, src_data, bitmap->width, bitmap->height, &src_pointf,
imageAttributes, interpolation, offset_mode);
else
*dst_color = 0;
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;
y_dx = dst_to_src_points[2].X - dst_to_src_points[0].X;
y_dy = dst_to_src_points[2].Y - dst_to_src_points[0].Y;
for (x=dst_area.left; x<dst_area.right; x++)
{
for (y=dst_area.top; y<dst_area.bottom; y++)
{
GpPointF src_pointf;
ARGB *dst_color;
src_pointf.X = dst_to_src_points[0].X + x * x_dx + y * y_dx;
src_pointf.Y = dst_to_src_points[0].Y + x * x_dy + y * y_dy;
dst_color = (ARGB*)(dst_data + dst_stride * (y - dst_area.top) + sizeof(ARGB) * (x - dst_area.left));
if (src_pointf.X >= srcx && src_pointf.X < srcx + srcwidth && src_pointf.Y >= srcy && src_pointf.Y < srcy+srcheight)
*dst_color = resample_bitmap_pixel(&src_area, src_data, bitmap->width, bitmap->height, &src_pointf,
imageAttributes, interpolation, offset_mode);
else
*dst_color = 0;
}
}
}
GdipFree(src_data);
else
{
dst_data = src_data;
dst_stride = src_stride;
}
stat = alpha_blend_pixels(graphics, dst_area.left, dst_area.top,
dst_data, dst_area.right - dst_area.left, dst_area.bottom - dst_area.top, dst_stride);
GdipFree(dst_data);
GdipFree(src_data);
GdipFree(dst_dyn_data);
return stat;
}