test drawing large-coord aa rects
git-svn-id: http://skia.googlecode.com/svn/trunk@10926 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/DrawPathTest.cpp b/tests/DrawPathTest.cpp
index b791a9a..aea07c1 100644
--- a/tests/DrawPathTest.cpp
+++ b/tests/DrawPathTest.cpp
@@ -9,6 +9,7 @@
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkDashPathEffect.h"
+#include "SkSurface.h"
static SkCanvas* create(SkBitmap::Config config, int w, int h, int rb,
void* addr = NULL) {
@@ -28,6 +29,49 @@
///////////////////////////////////////////////////////////////////////////////
+// test that we can draw an aa-rect at coordinates > 32K (bigger than fixedpoint)
+static void test_big_aa_rect(skiatest::Reporter* reporter) {
+ SkBitmap output;
+ SkPMColor pixel[1];
+ output.setConfig(SkBitmap::kARGB_8888_Config, 1, 1, 4);
+ output.setPixels(pixel);
+
+ SkImage::Info info = {
+ 300, 33300, SkImage::kPMColor_ColorType, SkImage::kPremul_AlphaType
+ };
+ SkSurface* surf = SkSurface::NewRaster(info);
+ SkCanvas* canvas = surf->getCanvas();
+
+ SkRect r = { 0, 33000, 300, 33300 };
+ int x = SkScalarRoundToInt(r.left());
+ int y = SkScalarRoundToInt(r.top());
+
+ // check that the pixel in question starts as transparent (by the surface)
+ if (canvas->readPixels(&output, x, y)) {
+ REPORTER_ASSERT(reporter, 0 == pixel[0]);
+ } else {
+ REPORTER_ASSERT(reporter, !"readPixels failed");
+ }
+
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ paint.setColor(SK_ColorWHITE);
+
+ canvas->drawRect(r, paint);
+
+ // Now check that it is BLACK
+ if (canvas->readPixels(&output, x, y)) {
+ // don't know what swizzling PMColor did, but white should always
+ // appear the same.
+ REPORTER_ASSERT(reporter, 0xFFFFFFFF == pixel[0]);
+ } else {
+ REPORTER_ASSERT(reporter, !"readPixels failed");
+ }
+ surf->unref();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
static void moveToH(SkPath* path, const uint32_t raw[]) {
const float* fptr = (const float*)raw;
path->moveTo(fptr[0], fptr[1]);
@@ -276,6 +320,10 @@
if (false) test_crbug131181();
test_infinite_dash(reporter);
test_crbug_165432(reporter);
+
+ if (false) { // working on a fix
+ test_big_aa_rect(reporter);
+ }
}
#include "TestClassDef.h"