1a325d25b9
Initial implementation of a GPU path renderer that draws antialiased paths by counting coverage in an offscreen buffer. Initially disabled until it has had time to soak. Bug: skia: Change-Id: I003d8cfdf8dc62641581b5ea2dc4f0aa00108df6 Reviewed-on: https://skia-review.googlesource.com/21541 Commit-Queue: Chris Dalton <csmartdalton@google.com> Reviewed-by: Greg Daniel <egdaniel@google.com> Reviewed-by: Brian Salomon <bsalomon@google.com> Reviewed-by: Robert Phillips <robertphillips@google.com>
75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SK_COMMON_FLAGS_PATH_RENDERER_H
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#define SK_COMMON_FLAGS_PATH_RENDERER_H
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#if SK_SUPPORT_GPU
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#include "GrContextOptions.h"
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#include "SkCommandLineFlags.h"
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#include "SkTypes.h"
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DECLARE_string(pr);
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#define DEFINE_pathrenderer_flag \
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DEFINE_string(pr, "all", \
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"Set of enabled gpu path renderers. Defined as a list of: " \
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"[[~]all [~]dashline [~]nvpr [~]msaa [~]aahairline [~]aaconvex " \
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"[~]aalinearizing [~]small [~]tess [~]grdefault]")
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inline GrContextOptions::GpuPathRenderers get_named_pathrenderers_flags(const char* name) {
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using GpuPathRenderers = GrContextOptions::GpuPathRenderers;
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if (!strcmp(name, "all")) {
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return GpuPathRenderers::kAll;
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} else if (!strcmp(name, "dashline")) {
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return GpuPathRenderers::kDashLine;
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} else if (!strcmp(name, "nvpr")) {
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return GpuPathRenderers::kStencilAndCover;
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} else if (!strcmp(name, "msaa")) {
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return GpuPathRenderers::kMSAA;
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} else if (!strcmp(name, "aahairline")) {
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return GpuPathRenderers::kAAHairline;
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} else if (!strcmp(name, "aaconvex")) {
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return GpuPathRenderers::kAAConvex;
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} else if (!strcmp(name, "aalinearizing")) {
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return GpuPathRenderers::kAALinearizing;
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} else if (!strcmp(name, "small")) {
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return GpuPathRenderers::kSmall;
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} else if (!strcmp(name, "ccpr")) {
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return GpuPathRenderers::kCoverageCounting;
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} else if (!strcmp(name, "tess")) {
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return GpuPathRenderers::kTessellating;
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} else if (!strcmp(name, "grdefault")) {
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return GpuPathRenderers::kDefault;
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}
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SK_ABORT(SkStringPrintf("error: unknown named path renderer \"%s\"\n", name).c_str());
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return GpuPathRenderers::kNone;
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}
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inline GrContextOptions::GpuPathRenderers CollectGpuPathRenderersFromFlags() {
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using GpuPathRenderers = GrContextOptions::GpuPathRenderers;
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if (FLAGS_pr.isEmpty()) {
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return GpuPathRenderers::kAll;
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}
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GpuPathRenderers gpuPathRenderers = '~' == FLAGS_pr[0][0] ?
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GpuPathRenderers::kAll : GpuPathRenderers::kNone;
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for (int i = 0; i < FLAGS_pr.count(); ++i) {
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const char* name = FLAGS_pr[i];
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if (name[0] == '~') {
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gpuPathRenderers &= ~get_named_pathrenderers_flags(&name[1]);
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} else {
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gpuPathRenderers |= get_named_pathrenderers_flags(name);
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}
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}
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return gpuPathRenderers;
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}
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#endif // SK_SUPPORT_GPU
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#endif
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