Support using OpenGL ES context on desktop

dm/DM.cpp

 // Main binary for DM.
 // For a high-level overview, please see dm/README.
 
 #include "Benchmark.h"
 #include "CrashHandler.h"
 #include "SkCommandLineFlags.h"
 #include "SkForceLinking.h"
 #include "SkGraphics.h"
 #include "SkPicture.h"
 #include "SkString.h"
@@ skipping 19 matching lines @@
 #  define RASTERIZE_PDF_PROC NULL
 #endif
 
 #include <ctype.h>
 
 using skiagm::GM;
 using skiagm::GMRegistry;
 using skiatest::Test;
 using skiatest::TestRegistry;
 
+static const char kGpuAPINameGL[] = "gl";
+static const char kGpuAPINameGLES[] = "gles";
+
 DEFINE_int32(threads, -1, "Threads for CPU work. Default NUM_CPUS.");
 DEFINE_int32(gpuThreads, 1, "Threads for GPU work.");
+DEFINE_string(gpuAPI, "", "Force use of specific gpu API.  Using \"gl\" "
+              "forces OpenGL API. Using \"gles\" forces OpenGL ES API. "
+              "Defaults to empty string, which selects the API native to the "
+              "system.");
 DEFINE_string2(expectations, r, "",
                "If a directory, compare generated images against images under this path. "
                "If a file, compare generated images against JSON expectations at this path."
 );
 DEFINE_string2(resources, i, "resources", "Path to resources directory.");
 DEFINE_string(match, "",  "[~][^]substring[$] [...] of GM name to run.\n"
                           "Multiple matches may be separated by spaces.\n"
                           "~ causes a matching GM to always be skipped\n"
                           "^ requires the start of the GM to match\n"
                           "$ requires the end of the GM to match\n"
@@ skipping 36 matching lines @@
 #endif
 static const GrContextFactory::GLContextType mesa   =
 #if SK_MESA
 GrContextFactory::kMESA_GLContextType;
 #else
 native;
 #endif
 
 static void kick_off_gms(const SkTDArray<GMRegistry::Factory>& gms,
                          const SkTArray<SkString>& configs,
+                         GrGLStandard gpuAPI,
                          const DM::Expectations& expectations,
                          DM::Reporter* reporter,
                          DM::TaskRunner* tasks) {
 #define START(name, type, ...)                                                              \
     if (lowercase(configs[j]).equals(name)) {                                               \
         tasks->add(SkNEW_ARGS(DM::type, (name, reporter, tasks, gms[i], ## __VA_ARGS__)));  \
     }
     for (int i = 0; i < gms.count(); i++) {
         for (int j = 0; j < configs.count(); j++) {
+
             START("565",        CpuGMTask, expectations, kRGB_565_SkColorType);
             START("8888",       CpuGMTask, expectations, kN32_SkColorType);
-            START("gpu",        GpuGMTask, expectations, native, 0);
-            START("msaa4",      GpuGMTask, expectations, native, 4);
-            START("msaa16",     GpuGMTask, expectations, native, 16);
-            START("nvprmsaa4",  GpuGMTask, expectations, nvpr,   4);
-            START("nvprmsaa16", GpuGMTask, expectations, nvpr,   16);
-            START("gpunull",    GpuGMTask, expectations, null,   0);
-            START("gpudebug",   GpuGMTask, expectations, debug,  0);
-            START("angle",      GpuGMTask, expectations, angle,  0);
-            START("mesa",       GpuGMTask, expectations, mesa,   0);
+            START("gpu",        GpuGMTask, expectations, native, gpuAPI, 0);
+            START("msaa4",      GpuGMTask, expectations, native, gpuAPI, 4);
+            START("msaa16",     GpuGMTask, expectations, native, gpuAPI, 16);
+            START("nvprmsaa4",  GpuGMTask, expectations, nvpr,   gpuAPI, 4);
+            START("nvprmsaa16", GpuGMTask, expectations, nvpr,   gpuAPI, 16);
+            START("gpunull",    GpuGMTask, expectations, null,   gpuAPI, 0);
+            START("gpudebug",   GpuGMTask, expectations, debug,  gpuAPI, 0);
+            START("angle",      GpuGMTask, expectations, angle,  gpuAPI, 0);
+            START("mesa",       GpuGMTask, expectations, mesa,   gpuAPI, 0);
             START("pdf",        PDFTask,   RASTERIZE_PDF_PROC);
         }
     }
 #undef START
 }
 
 static void kick_off_benches(const SkTDArray<BenchRegistry::Factory>& benches,
                              const SkTArray<SkString>& configs,
+                             GrGLStandard gpuAPI,
                              DM::Reporter* reporter,
                              DM::TaskRunner* tasks) {
 #define START(name, type, ...)                                                                 \
     if (lowercase(configs[j]).equals(name)) {                                                  \
         tasks->add(SkNEW_ARGS(DM::type, (name, reporter, tasks, benches[i], ## __VA_ARGS__))); \
     }
     for (int i = 0; i < benches.count(); i++) {
         for (int j = 0; j < configs.count(); j++) {
             START("nonrendering", NonRenderingBenchTask);
             START("565",          CpuBenchTask, kRGB_565_SkColorType);
             START("8888",         CpuBenchTask, kN32_SkColorType);
-            START("gpu",          GpuBenchTask, native, 0);
-            START("msaa4",        GpuBenchTask, native, 4);
-            START("msaa16",       GpuBenchTask, native, 16);
-            START("nvprmsaa4",    GpuBenchTask, nvpr,   4);
-            START("nvprmsaa16",   GpuBenchTask, nvpr,   16);
-            START("gpunull",      GpuBenchTask, null,   0);
-            START("gpudebug",     GpuBenchTask, debug,  0);
-            START("angle",        GpuBenchTask, angle,  0);
-            START("mesa",         GpuBenchTask, mesa,   0);
+            START("gpu",          GpuBenchTask, native, gpuAPI, 0);
+            START("msaa4",        GpuBenchTask, native, gpuAPI, 4);
+            START("msaa16",       GpuBenchTask, native, gpuAPI, 16);
+            START("nvprmsaa4",    GpuBenchTask, nvpr,   gpuAPI, 4);
+            START("nvprmsaa16",   GpuBenchTask, nvpr,   gpuAPI, 16);
+            START("gpunull",      GpuBenchTask, null,   gpuAPI, 0);
+            START("gpudebug",     GpuBenchTask, debug,  gpuAPI, 0);
+            START("angle",        GpuBenchTask, angle,  gpuAPI, 0);
+            START("mesa",         GpuBenchTask, mesa,   gpuAPI, 0);
         }
     }
 #undef START
 }
 
 static void kick_off_tests(const SkTDArray<TestRegistry::Factory>& tests,
                            DM::Reporter* reporter,
                            DM::TaskRunner* tasks) {
     for (int i = 0; i < tests.count(); i++) {
         SkAutoTDelete<Test> test(tests[i](NULL));
@@ skipping 41 matching lines @@
         return;
     }
 
     SkDebugf("Failures:\n");
     for (int i = 0; i < failures.count(); i++) {
         SkDebugf("  %s\n", failures[i].c_str());
     }
     SkDebugf("%d failures.\n", failures.count());
 }
 
+static GrGLStandard get_gl_standard() {
+  if (FLAGS_gpuAPI.contains(kGpuAPINameGL)) {
+      return kGL_GrGLStandard;
+  }
+  if (FLAGS_gpuAPI.contains(kGpuAPINameGLES)) {
+      return kGLES_GrGLStandard;
+  }
+  return kNone_GrGLStandard;
+}
+
 template <typename T, typename Registry>
 static void append_matching_factories(Registry* head, SkTDArray<typename Registry::Factory>* out) {
     for (const Registry* reg = head; reg != NULL; reg = reg->next()) {
         SkAutoTDelete<T> forName(reg->factory()(NULL));
         if (!SkCommandLineFlags::ShouldSkip(FLAGS_match, forName->getName())) {
             *out->append() = reg->factory();
         }
     }
 }
 
 int tool_main(int argc, char** argv);
 int tool_main(int argc, char** argv) {
     SetupCrashHandler();
     SkAutoGraphics ag;
     SkCommandLineFlags::Parse(argc, argv);
 
     if (FLAGS_dryRun) {
         FLAGS_verbose = true;
     }
 #if SK_ENABLE_INST_COUNT
     gPrintInstCount = FLAGS_leaks;
 #endif
 
     SkTArray<SkString> configs;
     for (int i = 0; i < FLAGS_config.count(); i++) {
         SkStrSplit(FLAGS_config[i], ", ", &configs);
     }
 
+    GrGLStandard gpuAPI = get_gl_standard();
+
     SkTDArray<GMRegistry::Factory> gms;
     SkAutoTDelete<DM::Expectations> expectations(SkNEW(DM::NoExpectations));
     if (FLAGS_gms) {
         append_matching_factories<GM>(GMRegistry::Head(), &gms);
 
         if (FLAGS_expectations.count() > 0) {
             const char* path = FLAGS_expectations[0];
             if (sk_isdir(path)) {
                 expectations.reset(SkNEW_ARGS(DM::WriteTask::Expectations, (path)));
             } else {
                 expectations.reset(SkNEW_ARGS(DM::JsonExpectations, (path)));
             }
         }
     }
 
     SkTDArray<BenchRegistry::Factory> benches;
     if (FLAGS_benches) {
         append_matching_factories<Benchmark>(BenchRegistry::Head(), &benches);
     }
 
     SkTDArray<TestRegistry::Factory> tests;
     if (FLAGS_tests) {
         append_matching_factories<Test>(TestRegistry::Head(), &tests);
     }
 
     SkDebugf("(%d GMs, %d benches) x %d configs, %d tests\n",
              gms.count(), benches.count(), configs.count(), tests.count());
     DM::Reporter reporter;
     DM::TaskRunner tasks(FLAGS_threads, FLAGS_gpuThreads);
-    kick_off_gms(gms, configs, *expectations, &reporter, &tasks);
-    kick_off_benches(benches, configs, &reporter, &tasks);
+    kick_off_gms(gms, configs, gpuAPI, *expectations, &reporter, &tasks);
+    kick_off_benches(benches, configs, gpuAPI, &reporter, &tasks);
     kick_off_tests(tests, &reporter, &tasks);
     kick_off_skps(&reporter, &tasks);
     tasks.wait();
 
     SkDebugf("\n");
 
     SkTArray<SkString> failures;
     reporter.getFailures(&failures);
     report_failures(failures);
     return failures.count() > 0;
 }
 
 #if !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_NACL)
 int main(int argc, char** argv) {
     return tool_main(argc, argv);
 }
 #endif