Add GPU render examples.

examples/BUILD.bazel

+cc_binary(
+    name = "skia_svg_render",
+    srcs = ["skia_svg_render.cc"],
+    copts = ["-I./src", "-std=c++2a"],
+    linkopts = [
+        "-lz", "-llzma", "-ljpeg", "-lfreetype",
+        "-lpng", "-lfontconfig", "-lGLX", "-lexpat -lm"],
+    deps = [
+        "@skia//:skia_svg",
+        "@skia//:skia",
+    ],
+)
+
+cc_binary(
+    name = "skia_svg_gpu_render",
+    srcs = ["skia_svg_gpu_render.cc"],
+    copts = ["-std=c++2a"],
+    linkopts = [
+        "-lz",
+        "-llzma",
+        "-ljpeg",
+        "-lfreetype",
+        "-lpng",
+        "-lfontconfig",
+        "-lGLX",
+        "-lexpat",
+        "-lm"],
+    deps = [
+        "@skia//:skia_svg",
+        "@skia//:skia",
+    ],
+)

examples/skia_svg_gpu_render.cc

+#include "include/gpu/GrBackendSurface.h"
+#include "include/gpu/gl/GrGLTypes.h"
+#include "include/gpu/GrDirectContext.h"
+
+int main(void) {
+    const int width = 1920;
+    const int height = 1080;
+    const int pixelBytes = 4;
+
+    sk_sp<GrDirectContext> context = GrDirectContext::MakeGL();
+
+    return 0;
+}

src/try.cc → examples/skia_svg_render.cc

@@ -12,8 +12,9 @@
 #include "include/core/SkImage.h"
 #include "include/core/SkEncodedImageFormat.h"
 #include "include/core/SkData.h"
+#include "include/gpu/gl/GrGLTypes.h"
 
-int example(void) {
+int main(void) {
     const int width = 1920;
     const int height = 1080;
     const int pixelBytes = 4;

prepare.sh

@@ -34,6 +34,9 @@ COMPILE_ARGS=(
     skia_enable_svg=true
     skia_use_system_libwebp=false
     skia_use_system_icu=false
+    skia_use_gl=true
+    skia_enable_gpu=true
+
 )
 printf -v COMPILE_ARGS_STR '%s ' "${COMPILE_ARGS[@]}"
 

src/try.h

-
-int example();

tests/check.cc

-#include "src/try.h"
 #include "gtest/gtest.h"
-
-extern "C" {
-#include "external/theft/inc/theft.h"
-}
-
-// Tests factorial of 0.
-TEST(Say, SayNothing) {
-  EXPECT_EQ(example(), 0);
-}