aboutsummaryrefslogtreecommitdiffhomepage
path: root/tools/fiddle/fiddle_main.cpp
blob: 4ba84f38ca00077116bff8d026120244dd2dd662 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
/*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include <cstdio>
#include <cstdlib>
#include <sstream>
#include <string>

#include "SkAutoPixmapStorage.h"
#include "SkCommandLineFlags.h"
#include "SkMipMap.h"
#include "SkUtils.h"

#include "fiddle_main.h"

DEFINE_double(duration, 1.0, "The total duration, in seconds, of the animation we are drawing.");
DEFINE_double(frame, 1.0, "A double value in [0, 1] that specifies the point in animation to draw.");

#include "GrBackendSurface.h"
#include "GrContextPriv.h"
#include "GrGpu.h"

#include "GrTest.h"


// Globals externed in fiddle_main.h
sk_sp<GrTexture>      backingTexture;  // not externed
GrBackendTexture      backEndTexture;

sk_sp<GrRenderTarget> backingRenderTarget; // not externed
GrBackendRenderTarget backEndRenderTarget;

sk_sp<GrTexture>      backingTextureRenderTarget;  // not externed
GrBackendTexture      backEndTextureRenderTarget;

SkBitmap source;
sk_sp<SkImage> image;
double duration; // The total duration of the animation in seconds.
double frame;    // A value in [0, 1] of where we are in the animation.

// Global used by the local impl of SkDebugf.
std::ostringstream gTextOutput;

// Global to record the GL driver info via create_grcontext().
std::ostringstream gGLDriverInfo;

void SkDebugf(const char * fmt, ...) {
    va_list args;
    va_start(args, fmt);
    char formatbuffer[1024];
    int n = vsnprintf(formatbuffer, sizeof(formatbuffer), fmt, args);
    va_end(args);
    if (n>=0 && n<=int(sizeof(formatbuffer))) {
        gTextOutput.write(formatbuffer, n);
    }
}

static void encode_to_base64(const void* data, size_t size, FILE* out) {
    const uint8_t* input = reinterpret_cast<const uint8_t*>(data);
    const uint8_t* end = &input[size];
    static const char codes[] =
            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
            "abcdefghijklmnopqrstuvwxyz0123456789+/";
    while (input != end) {
        uint8_t b = (*input & 0xFC) >> 2;
        fputc(codes[b], out);
        b = (*input & 0x03) << 4;
        ++input;
        if (input == end) {
            fputc(codes[b], out);
            fputs("==", out);
            return;
        }
        b |= (*input & 0xF0) >> 4;
        fputc(codes[b], out);
        b = (*input & 0x0F) << 2;
        ++input;
        if (input == end) {
            fputc(codes[b], out);
            fputc('=', out);
            return;
        }
        b |= (*input & 0xC0) >> 6;
        fputc(codes[b], out);
        b = *input & 0x3F;
        fputc(codes[b], out);
        ++input;
    }
}


static void dump_output(const void* data, size_t size,
                        const char* name, bool last = true) {
    printf("\t\"%s\": \"", name);
    encode_to_base64(data, size, stdout);
    fputs(last ? "\"\n" : "\",\n", stdout);
}

static void dump_output(const sk_sp<SkData>& data,
                        const char* name, bool last = true) {
    if (data) {
        dump_output(data->data(), data->size(), name, last);
    }
}

static sk_sp<SkData> encode_snapshot(const sk_sp<SkSurface>& surface) {
    sk_sp<SkImage> img(surface->makeImageSnapshot());
    return img ? img->encodeToData() : nullptr;
}

static SkCanvas* prepare_canvas(SkCanvas * canvas) {
    canvas->clear(SK_ColorWHITE);
    return canvas;
}

static bool setup_backend_objects(GrContext* context,
                                  const SkBitmap& bm,
                                  const DrawOptions& options) {
    if (!context) {
        return false;
    }

    auto resourceProvider = context->contextPriv().resourceProvider();

    GrSurfaceDesc backingDesc;
    backingDesc.fFlags = kNone_GrSurfaceFlags;
    backingDesc.fOrigin = kTopLeft_GrSurfaceOrigin;
    backingDesc.fWidth = bm.width();
    backingDesc.fHeight = bm.height();
    // This config must match the SkColorType used in draw.cpp in the SkImage and Surface factories
    backingDesc.fConfig = kRGBA_8888_GrPixelConfig;
    backingDesc.fSampleCnt = 0;

    if (!bm.empty()) {
        SkPixmap originalPixmap;
        SkPixmap* pixmap = &originalPixmap;
        if (!bm.peekPixels(&originalPixmap)) {
            return false;
        }

        SkAutoPixmapStorage rgbaPixmap;
        if (kN32_SkColorType != kRGBA_8888_SkColorType) {
            if (!rgbaPixmap.tryAlloc(bm.info().makeColorType(kRGBA_8888_SkColorType))) {
                return false;
            }
            if (!bm.readPixels(rgbaPixmap)) {
                return false;
            }
            pixmap = &rgbaPixmap;
        }
        int mipLevelCount = GrMipMapped::kYes == options.fMipMapping
                                    ? SkMipMap::ComputeLevelCount(bm.width(), bm.height())
                                    : 1;
        std::unique_ptr<GrMipLevel[]> texels(new GrMipLevel[mipLevelCount]);

        texels[0].fPixels = pixmap->addr();
        texels[0].fRowBytes = pixmap->rowBytes();

        for (int i = 1; i < mipLevelCount; i++) {
            texels[i].fPixels = nullptr;
            texels[i].fRowBytes = 0;
        }

        backingTexture = resourceProvider->createTexture(backingDesc, SkBudgeted::kNo,
                                                         texels.get(), mipLevelCount,
                                                         SkDestinationSurfaceColorMode::kLegacy);
        if (!backingTexture) {
            return false;
        }

        backEndTexture = backingTexture->getBackendTexture();
        if (!backEndTexture.isValid()) {
            return false;
        }
    }

    backingDesc.fFlags = kRenderTarget_GrSurfaceFlag;
    backingDesc.fWidth = options.fOffScreenWidth;
    backingDesc.fHeight = options.fOffScreenHeight;
    backingDesc.fSampleCnt = options.fOffScreenSampleCount;

    SkAutoTMalloc<uint32_t> data(backingDesc.fWidth * backingDesc.fHeight);
    sk_memset32(data.get(), 0, backingDesc.fWidth * backingDesc.fHeight);


    {
        // This backend object should be renderable but not textureable. Given the limitations
        // of how we're creating it though it will wind up being secretly textureable.
        // We use this fact to initialize it with data but don't allow mipmaps
        GrMipLevel level0 = { data.get(), backingDesc.fWidth*sizeof(uint32_t) };

        sk_sp<GrTexture> tmp = resourceProvider->createTexture(
                                                            backingDesc, SkBudgeted::kNo,
                                                            &level0, 1,
                                                            SkDestinationSurfaceColorMode::kLegacy);
        if (!tmp || !tmp->asRenderTarget()) {
            return false;
        }

        backingRenderTarget = sk_ref_sp(tmp->asRenderTarget());

        backEndRenderTarget = backingRenderTarget->getBackendRenderTarget();
        if (!backEndRenderTarget.isValid()) {
            return false;
        }
    }

    {
        int mipLevelCount = GrMipMapped::kYes == options.fOffScreenMipMapping
                            ? SkMipMap::ComputeLevelCount(backingDesc.fWidth, backingDesc.fHeight)
                            : 1;
        std::unique_ptr<GrMipLevel[]> texels(new GrMipLevel[mipLevelCount]);

        texels[0].fPixels = data.get();
        texels[0].fRowBytes = backingDesc.fWidth*sizeof(uint32_t);

        for (int i = 1; i < mipLevelCount; i++) {
            texels[i].fPixels = nullptr;
            texels[i].fRowBytes = 0;
        }

        backingTextureRenderTarget = resourceProvider->createTexture(
                                                            backingDesc, SkBudgeted::kNo,
                                                            texels.get(), mipLevelCount,
                                                            SkDestinationSurfaceColorMode::kLegacy);
        if (!backingTextureRenderTarget || !backingTextureRenderTarget->asRenderTarget()) {
            return false;
        }

        backEndTextureRenderTarget = backingTextureRenderTarget->getBackendTexture();
        if (!backEndTextureRenderTarget.isValid()) {
            return false;
        }
    }


    return true;
}

int main(int argc, char** argv) {
    SkCommandLineFlags::Parse(argc, argv);
    duration = FLAGS_duration;
    frame = FLAGS_frame;
    DrawOptions options = GetDrawOptions();
    // If textOnly then only do one type of image, otherwise the text
    // output is duplicated for each type.
    if (options.textOnly) {
        options.raster = true;
        options.gpu = false;
        options.pdf = false;
        options.skp = false;
    }
    if (options.source) {
        sk_sp<SkData> data(SkData::MakeFromFileName(options.source));
        if (!data) {
            perror(options.source);
            return 1;
        } else {
            image = SkImage::MakeFromEncoded(std::move(data));
            if (!image) {
                perror("Unable to decode the source image.");
                return 1;
            }
            SkAssertResult(image->asLegacyBitmap(&source, SkImage::kRO_LegacyBitmapMode));
        }
    }
    sk_sp<SkData> rasterData, gpuData, pdfData, skpData;
    SkColorType colorType = kN32_SkColorType;
    sk_sp<SkColorSpace> colorSpace = nullptr;
    if (options.f16) {
        SkASSERT(options.srgb);
        colorType = kRGBA_F16_SkColorType;
        colorSpace = SkColorSpace::MakeSRGBLinear();
    } else if (options.srgb) {
        colorSpace = SkColorSpace::MakeSRGB();
    }
    SkImageInfo info = SkImageInfo::Make(options.size.width(), options.size.height(), colorType,
                                         kPremul_SkAlphaType, colorSpace);
    if (options.raster) {
        auto rasterSurface = SkSurface::MakeRaster(info);
        srand(0);
        draw(prepare_canvas(rasterSurface->getCanvas()));
        rasterData = encode_snapshot(rasterSurface);
    }
    if (options.gpu) {
        sk_sp<GrContext> grContext = create_grcontext(gGLDriverInfo);
        if (!grContext) {
            fputs("Unable to get GrContext.\n", stderr);
        } else {
            if (!setup_backend_objects(grContext.get(), source, options)) {
                fputs("Unable to create backend objects.\n", stderr);
                exit(1);
            }

            auto surface = SkSurface::MakeRenderTarget(grContext.get(), SkBudgeted::kNo, info);
            if (!surface) {
                fputs("Unable to get render surface.\n", stderr);
                exit(1);
            }
            srand(0);
            draw(prepare_canvas(surface->getCanvas()));
            gpuData = encode_snapshot(surface);
        }
    }
    if (options.pdf) {
        SkDynamicMemoryWStream pdfStream;
        sk_sp<SkDocument> document(SkDocument::MakePDF(&pdfStream));
        if (document) {
            srand(0);
            draw(prepare_canvas(document->beginPage(options.size.width(), options.size.height())));
            document->close();
            pdfData = pdfStream.detachAsData();
        }
    }
    if (options.skp) {
        SkSize size;
        size = options.size;
        SkPictureRecorder recorder;
        srand(0);
        draw(prepare_canvas(recorder.beginRecording(size.width(), size.height())));
        auto picture = recorder.finishRecordingAsPicture();
        SkDynamicMemoryWStream skpStream;
        picture->serialize(&skpStream);
        skpData = skpStream.detachAsData();
    }

    printf("{\n");
    if (!options.textOnly) {
        dump_output(rasterData, "Raster", false);
        dump_output(gpuData, "Gpu", false);
        dump_output(pdfData, "Pdf", false);
        dump_output(skpData, "Skp", false);
    } else {
        std::string textoutput = gTextOutput.str();
        dump_output(textoutput.c_str(), textoutput.length(), "Text", false);
    }
    std::string glinfo = gGLDriverInfo.str();
    dump_output(glinfo.c_str(), glinfo.length(), "GLInfo", true);
    printf("}\n");

    return 0;
}