Added ctm matrix to GPU path

Added ctm matrix to GPU path

There should be no changes in behavior caused by this cl, it just adds the ctm matrix to filterImageGPU so that it may be used for scaling on all platforms when it is implemented on the blink side.

BUG=

Committed: http://code.google.com/p/skia/source/detail?r=10536

[Stephen White, 2013-08-05 15:19:11]

https://codereview.chromium.org/22209002/diff/1/src/core/SkImageFilterUtils.cpp
File src/core/SkImageFilterUtils.cpp (left):

https://codereview.chromium.org/22209002/diff/1/src/core/SkImageFilterUtils.c...
src/core/SkImageFilterUtils.cpp:34: if (filter->filterImage(proxy, src, matrix,
result, offset)) {
We should also pass the ctm here and get rid of this dummy matrix. This is used
when recursing from GPU -> raster filter.

https://codereview.chromium.org/22209002/diff/1/src/gpu/SkGpuDevice.cpp
File src/gpu/SkGpuDevice.cpp (right):

https://codereview.chromium.org/22209002/diff/1/src/gpu/SkGpuDevice.cpp#newco...
src/gpu/SkGpuDevice.cpp:1413: if (filter_texture(this, fContext, texture,
filter, w, h, SkMatrix::I(), &filteredBitmap,
As discussed, this is going to be problematic. drawSprite() ignores the CTM (by
design), but we currently use it in Blink for all filter draws (for speed).
There's nothing we can really do about it at this level; we'll probably have to
do the "make drawBitmap() as fast as drawSprite() when possible" fix first.

[sugoi1, 2013-08-05 15:46:36]

https://codereview.chromium.org/22209002/diff/1/src/core/SkImageFilterUtils.cpp
File src/core/SkImageFilterUtils.cpp (left):

https://codereview.chromium.org/22209002/diff/1/src/core/SkImageFilterUtils.c...
src/core/SkImageFilterUtils.cpp:34: if (filter->filterImage(proxy, src, matrix,
result, offset)) {
On 2013/08/05 15:19:11, Stephen White wrote:
> We should also pass the ctm here and get rid of this dummy matrix. This is
used
> when recursing from GPU -> raster filter.

Done.

[Stephen White, 2013-08-05 15:48:22]

LGTM

[commit-bot: I haz the power, 2013-08-05 16:45:51]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/sugoi@chromium.org/22209002/8001

[commit-bot: I haz the power, 2013-08-05 16:53:55]

Change committed as 10536