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| 1 /* |
| 2 * Copyright 2015 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #include <stdio.h> |
| 9 |
| 10 #include <GL/osmesa.h> |
| 11 |
| 12 #include "fiddle_main.h" |
| 13 |
| 14 // Globals externed in fiddle_main.h |
| 15 SkBitmap source; |
| 16 SkImage* image(nullptr); |
| 17 |
| 18 static void encode_to_base64(const void* data, size_t size, FILE* out) { |
| 19 const uint8_t* input = reinterpret_cast<const uint8_t*>(data); |
| 20 const uint8_t* end = &input[size]; |
| 21 static const char codes[] = |
| 22 "ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| 23 "abcdefghijklmnopqrstuvwxyz0123456789+/"; |
| 24 while (input != end) { |
| 25 uint8_t b = (*input & 0xFC) >> 2; |
| 26 fputc(codes[b], out); |
| 27 b = (*input & 0x03) << 4; |
| 28 ++input; |
| 29 if (input == end) { |
| 30 fputc(codes[b], out); |
| 31 fputs("==", out); |
| 32 return; |
| 33 } |
| 34 b |= (*input & 0xF0) >> 4; |
| 35 fputc(codes[b], out); |
| 36 b = (*input & 0x0F) << 2; |
| 37 ++input; |
| 38 if (input == end) { |
| 39 fputc(codes[b], out); |
| 40 fputc('=', out); |
| 41 return; |
| 42 } |
| 43 b |= (*input & 0xC0) >> 6; |
| 44 fputc(codes[b], out); |
| 45 b = *input & 0x3F; |
| 46 fputc(codes[b], out); |
| 47 ++input; |
| 48 } |
| 49 } |
| 50 |
| 51 static void dump_output(SkData* data, const char* name, bool last = true) { |
| 52 if (data) { |
| 53 printf("\t\"%s\": \"", name); |
| 54 encode_to_base64(data->data(), data->size(), stdout); |
| 55 fputs(last ? "\"\n" : "\",\n", stdout); |
| 56 } |
| 57 } |
| 58 |
| 59 static SkData* encode_snapshot(SkSurface* surface) { |
| 60 SkAutoTUnref<SkImage> img(surface->newImageSnapshot()); |
| 61 return img ? img->encode() : nullptr; |
| 62 } |
| 63 |
| 64 static OSMesaContext create_osmesa_context() { |
| 65 OSMesaContext osMesaContext = |
| 66 OSMesaCreateContextExt(OSMESA_BGRA, 0, 0, 0, nullptr); |
| 67 if (osMesaContext != nullptr) { |
| 68 static uint32_t buffer[16 * 16]; |
| 69 OSMesaMakeCurrent(osMesaContext, &buffer, GL_UNSIGNED_BYTE, 16, 16); |
| 70 } |
| 71 return osMesaContext; |
| 72 } |
| 73 |
| 74 static GrContext* create_mesa_grcontext() { |
| 75 SkAutoTUnref<const GrGLInterface> mesa(GrGLCreateMesaInterface()); |
| 76 intptr_t backend = reinterpret_cast<intptr_t>(mesa.get()); |
| 77 return backend ? GrContext::Create(kOpenGL_GrBackend, backend) : nullptr; |
| 78 } |
| 79 |
| 80 |
| 81 int main() { |
| 82 const DrawOptions options = GetDrawOptions(); |
| 83 fprintf(stderr, "%s\n", options.source); |
| 84 if (options.source) { |
| 85 SkAutoTUnref<SkData> data(SkData::NewFromFileName(options.source)); |
| 86 if (!data) { |
| 87 perror(options.source); |
| 88 return 1; |
| 89 } else { |
| 90 image = SkImage::NewFromEncoded(data); |
| 91 if (!image) { |
| 92 perror("Unable to decode the source image."); |
| 93 return 1; |
| 94 } |
| 95 SkAssertResult(image->asLegacyBitmap( |
| 96 &source, SkImage::kRO_LegacyBitmapMode)); |
| 97 } |
| 98 } |
| 99 SkAutoTUnref<SkData> rasterData, gpuData, pdfData, skpData; |
| 100 if (options.raster) { |
| 101 SkAutoTUnref<SkSurface> rasterSurface( |
| 102 SkSurface::NewRaster(SkImageInfo::MakeN32Premul(options.size))); |
| 103 draw(rasterSurface->getCanvas()); |
| 104 rasterData.reset(encode_snapshot(rasterSurface)); |
| 105 } |
| 106 if (options.gpu) { |
| 107 OSMesaContext osMesaContext = create_osmesa_context(); |
| 108 SkAutoTUnref<GrContext> grContext(create_mesa_grcontext()); |
| 109 if (!grContext) { |
| 110 fputs("Unable to get Mesa GrContext.\n", stderr); |
| 111 } else { |
| 112 SkAutoTUnref<SkSurface> surface( |
| 113 SkSurface::NewRenderTarget( |
| 114 grContext, |
| 115 SkSurface::kNo_Budgeted, |
| 116 SkImageInfo::MakeN32Premul(options.size))); |
| 117 if (!surface) { |
| 118 fputs("Unable to get render surface.\n", stderr); |
| 119 exit(1); |
| 120 } |
| 121 draw(surface->getCanvas()); |
| 122 gpuData.reset(encode_snapshot(surface)); |
| 123 } |
| 124 if (osMesaContext) { |
| 125 OSMesaDestroyContext(osMesaContext); |
| 126 } |
| 127 } |
| 128 if (options.pdf) { |
| 129 SkDynamicMemoryWStream pdfStream; |
| 130 SkAutoTUnref<SkDocument> document(SkDocument::CreatePDF(&pdfStream)); |
| 131 draw(document->beginPage(options.size.width(), options.size.height())); |
| 132 document->close(); |
| 133 pdfData.reset(pdfStream.copyToData()); |
| 134 } |
| 135 if (options.skp) { |
| 136 SkSize size; |
| 137 size = options.size; |
| 138 SkPictureRecorder recorder; |
| 139 draw(recorder.beginRecording(size.width(), size.height())); |
| 140 SkAutoTUnref<SkPicture> picture(recorder.endRecordingAsPicture()); |
| 141 SkDynamicMemoryWStream skpStream; |
| 142 picture->serialize(&skpStream); |
| 143 skpData.reset(skpStream.copyToData()); |
| 144 } |
| 145 |
| 146 printf("{\n"); |
| 147 dump_output(rasterData, "Raster", !gpuData && !pdfData && !skpData); |
| 148 dump_output(gpuData, "Gpu", !pdfData && !skpData); |
| 149 dump_output(pdfData, "Pdf", !skpData); |
| 150 dump_output(skpData, "Skp"); |
| 151 printf("}\n"); |
| 152 |
| 153 SkSafeSetNull(image); |
| 154 return 0; |
| 155 } |
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