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path: root/src/gpu/gl/GrGpuGL.h
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* Split GrDrawState and GrOptDrawState into separate classes and remove base ↵Gravatar egdaniel2014-09-26
| | | | | | | | | | | | | class. Besides splitting the two classes, there are no logical changes here and mostly moving code around. BUG=skia: R=bsalomon@google.com Author: egdaniel@google.com Review URL: https://codereview.chromium.org/597323002
* Use OptDrawState instead of DrawState when flushing state in GrGpuGLGravatar egdaniel2014-09-24
| | | | | | | | | BUG=skia: R=bsalomon@google.com, joshualitt@google.com Author: egdaniel@google.com Review URL: https://codereview.chromium.org/599963002
* Patch to create a distinct geometry processor. The vast majority of this patchGravatar joshualitt2014-09-23
| | | | | | | | | | | | | is just a rename. The meat is in GrGeometryProcessor, GrProcessor, GrGL*Processor, GrProcessorStage, Gr*BackendProcessorFactory, GrProcessUnitTestFactory, and the builders BUG=skia: R=bsalomon@google.com Author: joshualitt@chromium.org Review URL: https://codereview.chromium.org/582963002
* Add counting of some GL callsGravatar robertphillips2014-09-18
| | | | | | | | | | I would like this facility for tracking FBO switch improvements. R=bsalomon@google.com Author: robertphillips@google.com Review URL: https://codereview.chromium.org/553583008
* Fix typoGravatar robertphillips2014-09-17
| | | | | | | | R=jvanverth@google.com Author: robertphillips@google.com Review URL: https://codereview.chromium.org/579753003
* "NULL !=" = NULLGravatar bsalomon2014-09-05
| | | | | | | | R=reed@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/544233002
* Initial change to create GeometryProcessorGravatar joshualitt2014-09-04
| | | | | | | | | BUG=skia: R=bsalomon@google.com, robertphillips@google.com, egdaniel@google.com, jvanverth@google.com Author: joshualitt@chromium.org Review URL: https://codereview.chromium.org/509153002
* Remove GrDrawTarget::AutoRenderTargetRestore.Gravatar bsalomon2014-09-03
| | | | | | | | | | | Pass GrRenderTarget in GrGpuG clear\bind methods. BUG=skia:2889 R=egdaniel@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/533883004
* Implement NV_path_rendering on OpenGL ESGravatar kkinnunen2014-08-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement support for NV_path_rendering on OpenGL ES. Use glProgramPathFragmentInputGenNV function call instead of glPathTexGenNV to communicate transforms to fragment shader. The intention is that the NVPR paths will be drawn with the same shader program as non-NVPR geometry. For NVPR calls, the GPU will skip the vertex shader and just run the fragment shader. After program is linked, query the locations of the fragment shader inputs with glGetResourceLocation. The location will be used to set the transforms with glProgramPathFragmentInputGenNV. The functions and their workings are documented in: glProgramPathFragmentInputGenNV https://www.opengl.org/registry/specs/NV/path_rendering.txt (note: addition as of API version 1.3) glGetResourceLocation https://www.opengl.org/registry/specs/ARB/program_interface_query.txt http://www.opengl.org/registry/doc/glspec44.core.pdf (function is in core Open GL 4.4) Note: glProgramPathFragmentInputGenNV could be used also for OpenGL. However, using seems to trigger a bug in the driver. Disable this feature on OpenGL at least until the driver is fixed and released. The bug manifests in shadertext test, where the lower-left text pair is missing. Valgrind catches a bad read for the test and causes the context to OOM reproducibly. R=bsalomon@google.com, cdalton@nvidia.com, joshualitt@google.com, joshualitt@chromium.org Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/367643004
* Add GrResourceCache2.Gravatar bsalomon2014-08-21
| | | | | | | | | | | | Currently it just replaces GrGpu as the owner of the linked list of resources. Committed: https://skia.googlesource.com/skia/+/94ce9ac8624dbb45656b8f5c992fad9c9ff3ee5f R=mtklein@google.com, robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/481443002
* Simplify GrGLPathRendering interfaceGravatar kkinnunen2014-08-20
| | | | | | | | | | | | | | | | | | | | | | | Simplify GrGLPathRendering interface by removing polymorphism and functions that simply wrap GL functions unnecessarily. Replace the polymorphism by if -condition. Call the unconditional GL functions directly. GrGLPath, GrGLPathRange and GrGLPathRendering are part of the same logical subsystem. This means that the subsystem implementation details are taken into account within these classes. Example: if support for using conics would be added, the feature flag would go to GrGLPathRendering::Caps, the emulation would go to GrGLPath instead of GrGLPathRendering::pathCommands. Wrapping glPathCommandsNV is not useful. Try to expose the interface fully in same logical level; rename fragment input function to reflect this. R=bsalomon@google.com, cdalton@nvidia.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/450283002
* Separate GL path rendering state from GrGpuGL to GrGLPathRenderingGravatar kkinnunen2014-08-20
| | | | | | | | | | | | | | | | | | | Separate GL path rendering state from GrGpuGL to GrGLPathRendering. This makes GrGpuGL code simpler. The intention is that while GrGpuGL represents the global environment for GL, the GrGLPathRendering represents the global environment for path rendering extension. Add GrPathRendering, a base class for path rendering, and inherit GrGLPathRendering from that. Move the path rendering virtual functions from GrGpu to GrPathRendering. R=bsalomon@google.com, cdalton@nvidia.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/452823002
* Revert of Add GrResourceCache2. (patchset #4 of ↵Gravatar bsalomon2014-08-19
| | | | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/481443002/) Reason for revert: Likely caused a leak detected in Chromium after last Skia roll. Original issue's description: > Add GrResourceCache2. > > Currently it just replaces GrGpu as the owner of the linked list of resources. > > Committed: https://skia.googlesource.com/skia/+/94ce9ac8624dbb45656b8f5c992fad9c9ff3ee5f R=mtklein@google.com, robertphillips@google.com TBR=mtklein@google.com, robertphillips@google.com NOTREECHECKS=true NOTRY=true Author: bsalomon@google.com Review URL: https://codereview.chromium.org/477323006
* Add GrResourceCache2.Gravatar bsalomon2014-08-19
| | | | | | | | | | Currently it just replaces GrGpu as the owner of the linked list of resources. R=robertphillips@google.com, mtklein@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/481443002
* Wrap NV_path_rendering API with GrGLPathRenderingGravatar cdalton2014-08-11
| | | | | | | | | | | | | | Adds a GrGLPathRendering class that wraps the NV_path_rendering extension and manages its various API versions. It also provides backup implementations when certain NVpr methods from later API versions are not present on the current system. BUG=skia: R=bungeman@google.com, bsalomon@google.com, kkinnunen@nvidia.com Author: cdalton@nvidia.com Review URL: https://codereview.chromium.org/444223002
* Revert "Adds a GrGLPathRendering class that wraps the NV_path_rendering"Gravatar bungeman2014-08-06
| | | | | | | | | | | | | | | | | | This reverts commit 5672da0fa54f31c9727568e9dd5fe82c6e1585bc. This appears to be blocking the Skia roll by causing failures in the blink layout tests on the canvas-lost-gpu-context.html test. The bisect for this can be seen at: https://codereview.chromium.org/449473002/ Original issue's description: > Adds a GrGLPathRendering class that wraps the NV_path_rendering > extension and manages its various API versions. It also provides > backup implementations when certain NVpr methods from later API > versions are not present on the current system. > > Committed: https://skia.googlesource.com/skia/+/5672da0fa54f31c9727568e9dd5fe82c6e1585bc
* Adds a GrGLPathRendering class that wraps the NV_path_renderingGravatar cdalton2014-08-04
| | | | | | | | | | | | extension and manages its various API versions. It also provides backup implementations when certain NVpr methods from later API versions are not present on the current system. R=bsalomon@google.com, kkinnunen@nvidia.com, markkilgard@gmail.com Author: cdalton@nvidia.com Review URL: https://codereview.chromium.org/437473002
* Remove support in the gpu to use hardware AA lines. Current code paths could ↵Gravatar egdaniel2014-07-29
| | | | | | | | | | | | | not reach this code and thus was never used. The blend opt flag kDisableBlend should now be able to be removed, however it is left in this CL and will removed in its own. BUG=skia: R=bsalomon@google.com Author: egdaniel@google.com Review URL: https://codereview.chromium.org/427823002
* Revert of Remove gpu support for willUseHWAALines. ↵Gravatar egdaniel2014-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | (https://codereview.chromium.org/423943003/) Reason for revert: Breaking windows 7 compare gm's Original issue's description: > Remove gpu support for willUseHWAALines. > > By removing willUseHWAALines, we also no long reference the blend opt flag kDisableBlend so it has been removed > > BUG=skia: > > Committed: https://skia.googlesource.com/skia/+/e6dfba868c19b00562f8c733b9bf37dd4ec9e68c R=bsalomon@google.com TBR=bsalomon@google.com NOTREECHECKS=true NOTRY=true BUG=skia: Author: egdaniel@google.com Review URL: https://codereview.chromium.org/430493003
* Remove gpu support for willUseHWAALines.Gravatar egdaniel2014-07-29
| | | | | | | | | | | By removing willUseHWAALines, we also no long reference the blend opt flag kDisableBlend so it has been removed BUG=skia: R=bsalomon@google.com Author: egdaniel@google.com Review URL: https://codereview.chromium.org/423943003
* Finish removing GrTHashTableGravatar robertphillips2014-07-29
| | | | | | | | | | This class is no longer used in Ganesh (in favor of SkTDynamicHash) R=jvanverth@google.com Author: robertphillips@google.com Review URL: https://codereview.chromium.org/421253003
* Revert "Revert of Use the GrCacheable ID to eliminate the need for ↵Gravatar bsalomon2014-07-22
| | | | | | | | | | | | | | notifications to GrGpuGL when textures and RTs are… (https://codereview.chromium.org/376703009/)" This reverts commit 249171e7d29b5559f3eefe9dbd437030bfad3fda. Uses 32 bit id instead of 64. Renamed instanceID to uniqueID to match existing code. R=robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/414493002
* Add a GrPathRange classGravatar cdalton2014-07-21
| | | | | | | | | | | | | | | Adds a GrPathRange object that represents a range of paths on the gpu. Updates GrDrawTarget::drawPaths and supporting code to use GrPathRange instead of an array of GrPath objects. Change-Id: I67845f3893cd4d955db947d699aa3733cbb081e0 BUG=skia: R=bsalomon@google.com, jvanverth@google.com, kkinnunen@nvidia.com Author: cdalton@nvidia.com Review URL: https://codereview.chromium.org/400713003
* Replace GrTHash with SkTDynamicHashGravatar robertphillips2014-07-20
| | | | | | | | | | | | | Mike: SkTDynamicHash changes Brian: Ganesh changes This removes three instances of GrTHash leaving the ones in GrTextStrike.h R=mtklein@google.com, bsalomon@google.com Author: robertphillips@google.com Review URL: https://codereview.chromium.org/402693003
* Revert of Use the GrCacheable ID to eliminate the need for notifications to ↵Gravatar robertphillips2014-07-20
| | | | | | | | | | | | | | | | | | | | | | | GrGpuGL when textures and RTs are… (https://codereview.chromium.org/376703009/) Reason for revert: Trying to unblock roll wedged on 64 bit intrinsic call on XP Original issue's description: > Use the GrCacheable ID to eliminate the need for notifications to GrGpuGL when textures and RTs are deleted. > > Also, rename GrCacheable::getGenerationID() to getInstanceID() since it doesn't behave like other "generation" IDs. > > Committed: https://skia.googlesource.com/skia/+/91bdbcdbbdf5cdf0fdb4518a0d30206c964cfdf6 R=jvanverth@google.com, bsalomon@google.com TBR=bsalomon@google.com, jvanverth@google.com NOTREECHECKS=true NOTRY=true Author: robertphillips@google.com Review URL: https://codereview.chromium.org/405023003
* Use the GrCacheable ID to eliminate the need for notifications to GrGpuGL ↵Gravatar bsalomon2014-07-17
| | | | | | | | | | | | when textures and RTs are deleted. Also, rename GrCacheable::getGenerationID() to getInstanceID() since it doesn't behave like other "generation" IDs. R=jvanverth@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/376703009
* Allow compressed texture data to be updated.Gravatar krajcevski2014-06-11
| | | | | | | | R=robertphillips@google.com Author: krajcevski@google.com Review URL: https://codereview.chromium.org/326383003
* Generate path names on the client sideGravatar cdalton2014-06-09
| | | | | | | | | | | | | | Pre-allocates a range of path names and manages allocations within that range on the client side. This allows us to generate new path objects in a feed-forward manner that doesn't require round trips to the GL server. BUG=skia: R=bsalomon@google.com, markkilgard@gmail.com Author: cdalton@nvidia.com Review URL: https://codereview.chromium.org/304403003
* Initial work to get ETC1 data up to the GPUGravatar krajcevski2014-06-02
| | | | | | | | | | Committed: http://code.google.com/p/skia/source/detail?r=15001 R=bsalomon@google.com, robertphillips@google.com Author: krajcevski@google.com Review URL: https://codereview.chromium.org/302783002
* Revert of Initial work to get ETC1 data up to the GPU ↵Gravatar commit-bot@chromium.org2014-05-30
| | | | | | | | | | | | | | | | | | | | | | | (https://codereview.chromium.org/302783002/) Reason for revert: ETC1 linking problems with chrome. Original issue's description: > Initial work to get ETC1 data up to the GPU > > Committed: http://code.google.com/p/skia/source/detail?r=15001 R=bsalomon@google.com, robertphillips@google.com TBR=bsalomon@google.com, robertphillips@google.com NOTREECHECKS=true NOTRY=true Author: krajcevski@google.com Review URL: https://codereview.chromium.org/303273008 git-svn-id: http://skia.googlecode.com/svn/trunk@15004 2bbb7eff-a529-9590-31e7-b0007b416f81
* Initial work to get ETC1 data up to the GPUGravatar commit-bot@chromium.org2014-05-30
| | | | | | | | | | R=bsalomon@google.com, robertphillips@google.com Author: krajcevski@google.com Review URL: https://codereview.chromium.org/302783002 git-svn-id: http://skia.googlecode.com/svn/trunk@15001 2bbb7eff-a529-9590-31e7-b0007b416f81
* Use fixed function pipeline only when drawing pathsGravatar commit-bot@chromium.org2014-04-23
| | | | | | | | | | | | | | | | | | | | | | Use fixed function pipeline only when drawing paths. Previously FF vertex shader was used when drawing normal geometry if path rendering was enabled. This is required to make Chromium integration easier. This way fixed function vertex shading, including vertexshader-less programs, need not be implemented in the Chromium command buffer. Removes FF TexGen functionality, as it is not used anymore. Likewise removes the fixedFunctionSupport GL capability flag. BUG=chromium:344330 R=bsalomon@google.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/212753002 git-svn-id: http://skia.googlecode.com/svn/trunk@14334 2bbb7eff-a529-9590-31e7-b0007b416f81
* Use int rather than size_t for pathCount in GrDrawTarget::drawPathsGravatar commit-bot@chromium.org2014-03-28
| | | | | | | | | | | R=reed@google.com TBR=reed@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/216293006 git-svn-id: http://skia.googlecode.com/svn/trunk@13988 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add discard API to SkCanvas, plumb it to glDiscardFramebuffer()Gravatar commit-bot@chromium.org2014-03-28
| | | | | | | | | | | BUG=skia:2349 R=robertphillips@google.com, reed@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/211683002 git-svn-id: http://skia.googlecode.com/svn/trunk@13976 2bbb7eff-a529-9590-31e7-b0007b416f81
* Increase GrGpuGL's program cache sizeGravatar commit-bot@chromium.org2014-03-28
| | | | | | | | | | | BUG=skia:2274 R=robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/214823009 git-svn-id: http://skia.googlecode.com/svn/trunk@13973 2bbb7eff-a529-9590-31e7-b0007b416f81
* Remove forceRenderTargetFlush (unused)Gravatar commit-bot@chromium.org2014-03-25
| | | | | | | | | | R=robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/210253004 git-svn-id: http://skia.googlecode.com/svn/trunk@13948 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add Gpu Tracing to GaneshGravatar commit-bot@chromium.org2014-03-25
| | | | | | | | | | | BUG=skia:2316 R=bsalomon@google.com, tomhudson@google.com Author: egdaniel@google.com Review URL: https://codereview.chromium.org/184443003 git-svn-id: http://skia.googlecode.com/svn/trunk@13936 2bbb7eff-a529-9590-31e7-b0007b416f81
* Make it possible to draw multiple paths at once to a draw targetGravatar commit-bot@chromium.org2014-03-25
| | | | | | | | | | | | | | | | | | | | | | | Add interface to draw multiple paths in a single "command" to a draw target. Implement this interface in GrGpuGL with NVPR "instanced" calls. The instanced calls accept list of paths and list of transformations as their parameters. The transformations are at this moment expected to be 2d affine transformations, as the functions are called only for text rendering. This will be used when drawing fonts. Later it can be maybe be used in GrInOrderDrawBuffer to aggregate many draw calls into one instanced draw call, similar to drawing rects. R=jvanverth@google.com, bsalomon@google.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/209413006 git-svn-id: http://skia.googlecode.com/svn/trunk@13930 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add hooks for GL_EXT_debug_marker in gpuGravatar commit-bot@chromium.org2014-02-21
| | | | | | | | | | | BUG=skia: R=bsalomon@google.com Author: egdaniel@google.com Review URL: https://codereview.chromium.org/174123003 git-svn-id: http://skia.googlecode.com/svn/trunk@13538 2bbb7eff-a529-9590-31e7-b0007b416f81
* Make GrGLContextInfo have private ptr to GrGLInterfaceGravatar commit-bot@chromium.org2014-01-16
| | | | | | | | | | | BUG=skia:2042 R=robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/140843003 git-svn-id: http://skia.googlecode.com/svn/trunk@13111 2bbb7eff-a529-9590-31e7-b0007b416f81
* Rename GrGLBinding->GrGLStandard, no longer a bitfieldGravatar commit-bot@chromium.org2014-01-16
| | | | | | | | | | | BUG=skia:2042 R=jvanverth@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/133413003 git-svn-id: http://skia.googlecode.com/svn/trunk@13108 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix two inconsistencies in handling fixed-function texture coordinate set ↵Gravatar commit-bot@chromium.org2013-11-01
| | | | | | | | | | | | | | | | | | | generation Prevent off-by-one bug leaving the texture coordinate set 0 always enabled if it ever was used. This makes the code consistent with its apparent purpose. When enabling / disabling texture coordinate sets, call glPathTexGen only if path rendering is applicable. This makes the functions consistent with GrGpuGL::resetContext. R=cdalton@nvidia.com, bsalomon@google.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/54403003 git-svn-id: http://skia.googlecode.com/svn/trunk@12074 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add can-ignore-rect hint to clear callGravatar robertphillips@google.com2013-10-31
| | | | | | | | https://codereview.chromium.org/53823003/ git-svn-id: http://skia.googlecode.com/svn/trunk@12064 2bbb7eff-a529-9590-31e7-b0007b416f81
* Don't check if shaders compile or program links in release ChromiumGravatar commit-bot@chromium.org2013-10-30
| | | | | | | | | | R=robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/52843003 git-svn-id: http://skia.googlecode.com/svn/trunk@12032 2bbb7eff-a529-9590-31e7-b0007b416f81
* GrTHashCache -> GrTHashTableGravatar mtklein@google.com2013-10-21
| | | | | | | | | | | The class is Table, but the file's Cache. That's confusing. BUG= R=bsalomon@google.com Review URL: https://codereview.chromium.org/32523004 git-svn-id: http://skia.googlecode.com/svn/trunk@11898 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix GrProgramsTest to not generate tests with too many TexCoord referencesGravatar commit-bot@chromium.org2013-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | Make GrProgramsTest check how many texture coordinate sets are available and select random effects up until the amount runs out. Otherwise, following effect sequence would fail the shader compilation when Skia is compiled with nv_path_rendering on (eg. when fixed function codepath is used): * Stage 0: TextureDomain (1 texcoord) * Stage 1: Convolution (1 texcoord) * Stage 2: Bitmap Alpha Threshold (2 texcoords) * Stage 3: DisplacementMap (2 texcoords) * Stage 4: Config Conversion (1 texcoords) * Stage 5: Two-Point Conical Gradient (2 texcoords) This would use more texture coordinate sets than 8, which is fairly common amount currently. R=bsalomon@google.com, cdalton@nvidia.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/32403002 git-svn-id: http://skia.googlecode.com/svn/trunk@11881 2bbb7eff-a529-9590-31e7-b0007b416f81
* Start cleaning up 64bit Win warningsGravatar robertphillips@google.com2013-10-14
| | | | | | | | https://codereview.chromium.org/27192003/ git-svn-id: http://skia.googlecode.com/svn/trunk@11764 2bbb7eff-a529-9590-31e7-b0007b416f81
* Move renderable config list to GrDrawTargetCapsGravatar commit-bot@chromium.org2013-10-14
| | | | | | | | | | R=robertphillips@google.com Author: bsalomon@google.com Review URL: https://codereview.chromium.org/26342006 git-svn-id: http://skia.googlecode.com/svn/trunk@11756 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement stroking a path with nv_path_renderingGravatar commit-bot@chromium.org2013-10-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the path stroke properties in the GrGLPath constructor. Use StencilStrokePath and CoverStrokePath to stroke the path. The order of the GL calls is: 1. StencilFill, if needed 2. StencilStroke, if needed 2a. CoverStroke, if stroke was applied 2b. CoverFill, if stroke was not applied The reason for not pairing StencilFill + CoverFill, StencilStroke + CoverStroke is that Skia API does not allow separate fill and stroke color within one call. Covering the stroke bounding box should also cover the fill bounding box. Causes different rendering in gm/dashcubics due to different rendering algorithm. (?) (TODO: this should be resolved somehow.) R=bsalomon@google.com, markkilgard@gmail.com, cdalton@nvidia.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/23440049 git-svn-id: http://skia.googlecode.com/svn/trunk@11672 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement filling a path with nv_path_rendering coverGravatar commit-bot@chromium.org2013-10-09
| | | | | | | | | | | | | | | | | | Implement filling a path with nv_path_rendering cover functionality. The nv_path_rendering cover can be used if the fill is non-inverted and the draw operation does not require use of vertex shaders. Moves code for the inverted fill from GrStencilAndCoverPathRenderer down to GrGpuGL. R=bsalomon@google.com, markkilgard@gmail.com, cdalton@nvidia.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/22686002 git-svn-id: http://skia.googlecode.com/svn/trunk@11667 2bbb7eff-a529-9590-31e7-b0007b416f81