delete webtry from main skia repo; it's been moved to buildbots

experimental/webtry/main.cpp

-#include <sys/time.h>
-#include <sys/resource.h>
-
-#include "GrContextFactory.h"
-
-#include "SkCanvas.h"
-#include "SkCommandLineFlags.h"
-#include "SkData.h"
-#include "SkForceLinking.h"
-#include "SkGraphics.h"
-#include "SkImageDecoder.h"
-#include "SkImageEncoder.h"
-#include "SkImageInfo.h"
-#include "SkOSFile.h"
-#include "SkStream.h"
-#include "SkSurface.h"
-
-#include "seccomp_bpf.h"
-
-__SK_FORCE_IMAGE_DECODER_LINKING;
-
-DEFINE_string(out, "", "Output basename; fiddle will append the config used and the appropriate extension");
-DEFINE_string(source, "", "Filename of the source image.");
-DEFINE_int32(width, 256, "Width of output image.");
-DEFINE_int32(height, 256, "Height of output image.");
-DEFINE_bool(gpu, false, "Use GPU (Mesa) rendering.");
-DEFINE_bool(raster, true, "Use Raster rendering.");
-DEFINE_bool(pdf, false, "Use PDF rendering.");
-
-// Defined in template.cpp.
-extern SkBitmap source;
-
-static bool install_syscall_filter() {
-
-#ifndef SK_UNSAFE_BUILD_DESKTOP_ONLY
-    struct sock_filter filter[] = {
-        /* Grab the system call number. */
-        EXAMINE_SYSCALL,
-        /* List allowed syscalls. */
-        ALLOW_SYSCALL(exit_group),
-        ALLOW_SYSCALL(exit),
-        ALLOW_SYSCALL(fstat),
-        ALLOW_SYSCALL(read),
-        ALLOW_SYSCALL(write),
-        ALLOW_SYSCALL(close),
-        ALLOW_SYSCALL(mmap),
-        ALLOW_SYSCALL(munmap),
-        ALLOW_SYSCALL(brk),
-        ALLOW_SYSCALL(futex),
-        KILL_PROCESS,
-    };
-    struct sock_fprog prog = {
-        SK_ARRAY_COUNT(filter),
-        filter,
-    };
-
-    // Lock down the app so that it can't get new privs, such as setuid.
-    // Calling this is a requirement for an unpriviledged process to use mode
-    // 2 seccomp filters, ala SECCOMP_MODE_FILTER, otherwise we'd have to be
-    // root.
-    if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) {
-        perror("prctl(NO_NEW_PRIVS)");
-        goto failed;
-    }
-    // Now call seccomp and restrict the system calls that can be made to only
-    // the ones in the provided filter list.
-    if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog)) {
-        perror("prctl(SECCOMP)");
-        goto failed;
-    }
-    return true;
-
-failed:
-    if (errno == EINVAL) {
-        fprintf(stderr, "SECCOMP_FILTER is not available. :(\n");
-    }
-    return false;
-#else
-    return true;
-#endif /* SK_UNSAFE_BUILD_DESKTOP_ONLY */
-}
-
-static void setLimits() {
-    struct rlimit n;
-
-    // Limit to 5 seconds of CPU.
-    n.rlim_cur = 5;
-    n.rlim_max = 5;
-    if (setrlimit(RLIMIT_CPU, &n)) {
-        perror("setrlimit(RLIMIT_CPU)");
-    }
-
-    // Limit to 150M of Address space.
-    n.rlim_cur = 150000000;
-    n.rlim_max = 150000000;
-    if (setrlimit(RLIMIT_AS, &n)) {
-        perror("setrlimit(RLIMIT_CPU)");
-    }
-}
-
-extern void draw(SkCanvas* canvas);
-
-static void drawAndDump(SkSurface* surface, SkWStream* stream) {
-    SkCanvas *canvas = surface->getCanvas();
-    draw(canvas);
-
-    // Write out the image as a PNG.
-    SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
-    SkAutoTUnref<SkData> data(image->encode(SkImageEncoder::kPNG_Type, 100));
-    if (NULL == data.get()) {
-        printf("Failed to encode\n");
-        exit(1);
-    }
-    stream->write(data->data(), data->size());
-}
-
-static void drawRaster(SkWStream* stream, SkImageInfo info) {
-    SkAutoTUnref<SkSurface> surface;
-    surface.reset(SkSurface::NewRaster(info)); 
-    drawAndDump(surface, stream);
-}
-
-static void drawGPU(SkWStream* stream, GrContext* gr, SkImageInfo info) {
-    SkAutoTUnref<SkSurface> surface;
-    surface.reset(SkSurface::NewRenderTarget(gr,info));
-
-    drawAndDump(surface, stream);
-}
-
-static void drawPDF(SkWStream* stream, SkImageInfo info) {
-    printf( "Not implemented yet...\n");
-}
-
-int main(int argc, char** argv) {
-    SkCommandLineFlags::Parse(argc, argv);
-    SkAutoGraphics init;
-
-    if (FLAGS_out.count() == 0) {
-      perror("The --out flag must have an argument.");
-      return 1;
-    }
-
-    if (FLAGS_source.count() == 1) {
-        const char *sourceDir = getenv("WEBTRY_INOUT");
-        if (NULL == sourceDir) {
-            sourceDir = "/skia_build/inout";
-        }
-
-        SkString sourcePath = SkOSPath::Join(sourceDir, FLAGS_source[0]);
-        if (!SkImageDecoder::DecodeFile(sourcePath.c_str(), &source)) {
-            perror("Unable to read the source image.");
-        }
-    }
-
-    // make sure to open any needed output files before we set up the security
-    // jail
-
-    SkWStream* streams[3] = {NULL, NULL, NULL};
-
-    if (FLAGS_raster) {
-        SkString outPath;
-        outPath.printf("%s_raster.png", FLAGS_out[0]);
-        streams[0] = SkNEW_ARGS(SkFILEWStream,(outPath.c_str()));
-    }
-    if (FLAGS_gpu) {
-        SkString outPath;
-        outPath.printf("%s_gpu.png", FLAGS_out[0]);
-        streams[1] = SkNEW_ARGS(SkFILEWStream,(outPath.c_str()));
-    }
-    if (FLAGS_pdf) {
-        SkString outPath;
-        outPath.printf("%s.pdf", FLAGS_out[0]);
-        streams[2] = SkNEW_ARGS(SkFILEWStream,(outPath.c_str()));
-    }
-
-    SkImageInfo info = SkImageInfo::MakeN32(FLAGS_width, FLAGS_height, kPremul_SkAlphaType);
-
-    GrContext *gr = NULL;
-    GrContextFactory* grFactory = NULL;
-
-    // need to set up the GPU context before we install system call restrictions
-    if (FLAGS_gpu) {
-    
-        GrContext::Options grContextOpts;
-        grFactory = new GrContextFactory(grContextOpts);
-        gr = grFactory->get(GrContextFactory::kMESA_GLContextType);
-    }
-
-    setLimits();
-
-    if (!install_syscall_filter()) {
-        return 1;
-    }
-
-    if (NULL != streams[0]) {
-        drawRaster(streams[0], info);
-    }
-    if (NULL != streams[1]) {
-        drawGPU(streams[1], gr, info);
-    }
-    if (NULL != streams[2]) {
-        drawPDF(streams[2], info);
-    }
-
-    if (gr) {
-        delete grFactory;
-    }
-}