c0bd9f9fe5
Current strategy: everything from the top
Things to look at first are the manual changes:
- added tools/rewrite_includes.py
- removed -Idirectives from BUILD.gn
- various compile.sh simplifications
- tweak tools/embed_resources.py
- update gn/find_headers.py to write paths from the top
- update gn/gn_to_bp.py SkUserConfig.h layout
so that #include "include/config/SkUserConfig.h" always
gets the header we want.
No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
70 lines
2.9 KiB
C++
70 lines
2.9 KiB
C++
/*
|
|
* Copyright 2017 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "gm/gm.h"
|
|
|
|
#include "include/gpu/GrContext.h"
|
|
|
|
// This test exercises Ganesh's drawing of tiled bitmaps. In particular, that the offsets and the
|
|
// extents of the tiles don't causes gaps between tiles.
|
|
static void draw_tile_bitmap_with_fractional_offset(GrContext* context, SkCanvas* canvas,
|
|
bool vertical) {
|
|
// This should match kBmpSmallTileSize in SkGpuDevice.cpp. Note that our canvas size is tuned
|
|
// to this constant as well.
|
|
const int kTileSize = 1 << 10;
|
|
|
|
// We're going to draw a section of the bitmap that intersects 3 tiles (3x1 or 1x3).
|
|
// We need that to be < 50% of the total image, so our image is 7 tiles (7x1 or 1x7).
|
|
const int kBitmapLongEdge = 7 * kTileSize;
|
|
const int kBitmapShortEdge = 1 * kTileSize;
|
|
|
|
// To trigger tiling, we also need the image to be more than 50% of the cache, so we ensure the
|
|
// cache is sized to make that true.
|
|
const int kBitmapArea = kBitmapLongEdge * kBitmapShortEdge;
|
|
const size_t kBitmapBytes = kBitmapArea * sizeof(SkPMColor);
|
|
|
|
int oldMaxResources;
|
|
size_t oldMaxResourceBytes;
|
|
context->getResourceCacheLimits(&oldMaxResources, &oldMaxResourceBytes);
|
|
|
|
const size_t newMaxResourceBytes = kBitmapBytes + (kBitmapBytes / 2);
|
|
context->setResourceCacheLimits(oldMaxResources, newMaxResourceBytes);
|
|
|
|
// Construct our bitmap as either very wide or very tall
|
|
SkBitmap bmp;
|
|
bmp.allocN32Pixels(vertical ? kBitmapShortEdge : kBitmapLongEdge,
|
|
vertical ? kBitmapLongEdge : kBitmapShortEdge, true);
|
|
bmp.eraseColor(SK_ColorWHITE);
|
|
|
|
// Draw ten strips with varying fractional offset to catch any rasterization issues with tiling
|
|
for (int i = 0; i < 10; ++i) {
|
|
float offset = i * 0.1f;
|
|
if (vertical) {
|
|
canvas->drawBitmapRect(bmp, SkRect::MakeXYWH(0.0f, (kTileSize - 50) + offset,
|
|
32.0f, 1124.0f),
|
|
SkRect::MakeXYWH(37.0f * i, 0.0f, 32.0f, 1124.0f), nullptr);
|
|
} else {
|
|
canvas->drawBitmapRect(bmp, SkRect::MakeXYWH((kTileSize - 50) + offset, 0.0f,
|
|
1124.0f, 32.0f),
|
|
SkRect::MakeXYWH(0.0f, 37.0f * i, 1124.0f, 32.0f), nullptr);
|
|
}
|
|
}
|
|
|
|
// Restore the cache
|
|
context->setResourceCacheLimits(oldMaxResources, oldMaxResourceBytes);
|
|
}
|
|
|
|
DEF_SIMPLE_GPU_GM_BG(
|
|
bitmaptiled_fractional_horizontal, context, rtc, canvas, 1124, 365, SK_ColorBLACK) {
|
|
draw_tile_bitmap_with_fractional_offset(context, canvas, false);
|
|
}
|
|
|
|
DEF_SIMPLE_GPU_GM_BG(
|
|
bitmaptiled_fractional_vertical, context, rtc, canvas, 365, 1124, SK_ColorBLACK) {
|
|
draw_tile_bitmap_with_fractional_offset(context, canvas, true);
|
|
}
|