This is a first stab at implementing a GPU-based
Gaussian blur in Ganesh. The convolution shader is implemented as a new
filtering mode. There are several known issues:
- no support for blur types other than "normal"
- FBO truncation problem at high zoom values
- uses bilinear for upsampling instead of Mitchell
Review URL: http://codereview.appspot.com/4645082/
git-svn-id: http://skia.googlecode.com/svn/trunk@1830 2bbb7eff-a529-9590-31e7-b0007b416f81
Volatility is a hint that indicates that the contents of a bitmap
are ephemeral. SkGpuDevice will not preserve volatile bitmaps
in its texture cache, and will use textures from a pool of
keyless (recyclable) textures to avoid the performance hit of
texture allocation and release.
A subsequent change is required in webkit in order to take advantage
of this optimization. putImageData, and other methods that create
temporary bitmaps will have to mark their bitmaps as volatile.
before rendering them through skia.
git-svn-id: http://skia.googlecode.com/svn/trunk@1769 2bbb7eff-a529-9590-31e7-b0007b416f81
Put in framework for changing curve subdivision tolerance when rendering
offscreen AA tiles; however, comment out actual tolerance changes because
of possible quality issues with simple circles (q.v. Arcs slide of SampleApp).
git-svn-id: http://skia.googlecode.com/svn/trunk@1702 2bbb7eff-a529-9590-31e7-b0007b416f81
better match the fonts produced by CoreText on OS/X.
M include/config/SkUserConfig.h
M include/core/SkMask.h
M include/core/SkScalerContext.h
M src/core/SkBlitter_ARGB32.cpp
M src/core/SkScalerContext.cpp
M src/core/SkPaint.cpp
M src/gpu/SkGrFontScaler.cpp
M src/ports/SkFontHost_mac_coretext.cpp
M src/ports/SkFontHost_mac.cpp
M gpu/include/GrTypes.h
M gpu/src/GrAtlas.cpp
git-svn-id: http://skia.googlecode.com/svn/trunk@1672 2bbb7eff-a529-9590-31e7-b0007b416f81
Default all architectures to kProbe_GrGLCapability.
Use new facilities better from GrGpuGL.cpp
git-svn-id: http://skia.googlecode.com/svn/trunk@1613 2bbb7eff-a529-9590-31e7-b0007b416f81
Create a symbolic name for -1 when it means "don't know, probe at runtime".
git-svn-id: http://skia.googlecode.com/svn/trunk@1606 2bbb7eff-a529-9590-31e7-b0007b416f81
test of whether FBOs work at all, and adds parameters to the GrGLInterface
so that values can be passed into the Context creation routines instead
of executing the probes.
The GrGLInterface now defaults to run FBO tests on Android (since hardware
varies), but assumes success on desktop and software platforms.
git-svn-id: http://skia.googlecode.com/svn/trunk@1582 2bbb7eff-a529-9590-31e7-b0007b416f81
-Wall -Wextra and -Wno-unused in common.gypi. This revealed a lot of warnings
(and some actual bugs), all of which I fixed here. This is pretty mindless
stuff for the most part (order of intialization, missing initializers, && within
||, etc), but will allow us to build cleanly with -Wall and -Wextra (and
-Werror, if we so choose).
I put defaults into switches that were missing cases. I could put in the actual
missing enums instead if that's desired. I could also assert on missing enums
instead of break, if that's desired. I wasn't sure how to test the stuff in
"animator", so that should be looked at a bit more closely.
Review URL: http://codereview.appspot.com/4547055/
git-svn-id: http://skia.googlecode.com/svn/trunk@1386 2bbb7eff-a529-9590-31e7-b0007b416f81
edge AA polys, so we minimize state changes and GL calls. This requires
querying GL for the maximum number of fragment uniforms. It also makes the
shader generator produce custom shaders for the number of relevant edges.
This gives a ~5X speedup on the "Shapes" SampleApp.
Review URL: http://codereview.appspot.com/4536070/
git-svn-id: http://skia.googlecode.com/svn/trunk@1380 2bbb7eff-a529-9590-31e7-b0007b416f81
Problem was resolved by adding the notion of a custom texture domain in generated shaders, when necessary.
git-svn-id: http://skia.googlecode.com/svn/trunk@1337 2bbb7eff-a529-9590-31e7-b0007b416f81
This patch implements edge antialiasing for convex shapes, using the fragment
shader to compare against the edge equations for each triangle. Currently, it
only works for flat shaded primitives (i.e., it was not integrated into the
"active stages" path). The skia.gyp changes cause this code to be compiled into
SampleApp, but do not enable the tesselated path by default.
Notes: the SkOSWindow_Unix.cpp change is to silence a valgrind warning about
memcpy() with overlapping regions. The GrBinHashKey change is to avoid running
a two-pass hash (GrProgramDesc is now 52 bytes or so, exceeding the 32 byte
default size).
Review URL: http://codereview.appspot.com/4519054/
git-svn-id: http://skia.googlecode.com/svn/trunk@1314 2bbb7eff-a529-9590-31e7-b0007b416f81
assumes GL_RGBA texture format on all platforms except Windows (where it uses
GL_BGRA), so texture colours come out wrong. As a temporary fix, do on Linux
what we do on Windows, and assume GL_BGRA. (This should be made more general
later, and the assumption of matching formats between Skia and Ganesh removed.)
Review URL: http://codereview.appspot.com/4474046/
git-svn-id: http://skia.googlecode.com/svn/trunk@1247 2bbb7eff-a529-9590-31e7-b0007b416f81
