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574 lines
21 KiB
574 lines
21 KiB
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkCanvas.h"
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#include "SkColorData.h"
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#include "SkImageInfoPriv.h"
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#include "SkMathPriv.h"
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#include "SkSurface.h"
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#include "Test.h"
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#include "sk_tool_utils.h"
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#include "GrBackendSurface.h"
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#include "GrContext.h"
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#include "GrContextPriv.h"
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#include "GrGpu.h"
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#include "GrProxyProvider.h"
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#include <initializer_list>
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static const int DEV_W = 100, DEV_H = 100;
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static const SkIRect DEV_RECT = SkIRect::MakeWH(DEV_W, DEV_H);
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static const U8CPU DEV_PAD = 0xee;
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static SkPMColor get_canvas_color(int x, int y) {
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SkASSERT(x >= 0 && x < DEV_W);
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SkASSERT(y >= 0 && y < DEV_H);
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U8CPU r = x;
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U8CPU g = y;
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U8CPU b = 0xc;
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U8CPU a = 0x0;
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switch ((x+y) % 5) {
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case 0:
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a = 0xff;
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break;
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case 1:
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a = 0x80;
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break;
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case 2:
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a = 0xCC;
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break;
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case 3:
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a = 0x00;
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break;
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case 4:
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a = 0x01;
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break;
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}
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return SkPremultiplyARGBInline(a, r, g, b);
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}
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// assumes any premu/.unpremul has been applied
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static uint32_t pack_color_type(SkColorType ct, U8CPU a, U8CPU r, U8CPU g, U8CPU b) {
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uint32_t r32;
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uint8_t* result = reinterpret_cast<uint8_t*>(&r32);
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switch (ct) {
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case kBGRA_8888_SkColorType:
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result[0] = b;
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result[1] = g;
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result[2] = r;
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result[3] = a;
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break;
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case kRGBA_8888_SkColorType: // fallthrough
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case kRGB_888x_SkColorType:
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result[0] = r;
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result[1] = g;
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result[2] = b;
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result[3] = a;
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break;
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default:
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SkASSERT(0);
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return 0;
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}
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return r32;
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}
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static uint32_t get_bitmap_color(int x, int y, int w, SkColorType ct, SkAlphaType at) {
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int n = y * w + x;
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U8CPU b = n & 0xff;
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U8CPU g = (n >> 8) & 0xff;
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U8CPU r = (n >> 16) & 0xff;
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U8CPU a = 0;
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switch ((x+y) % 5) {
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case 4:
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a = 0xff;
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break;
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case 3:
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a = 0x80;
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break;
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case 2:
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a = 0xCC;
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break;
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case 1:
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a = 0x01;
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break;
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case 0:
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a = 0x00;
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break;
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}
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if (kPremul_SkAlphaType == at) {
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r = SkMulDiv255Ceiling(r, a);
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g = SkMulDiv255Ceiling(g, a);
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b = SkMulDiv255Ceiling(b, a);
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}
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return pack_color_type(ct, a, r, g , b);
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}
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static void fill_surface(SkSurface* surface) {
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SkBitmap bmp;
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bmp.allocN32Pixels(DEV_W, DEV_H);
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for (int y = 0; y < DEV_H; ++y) {
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for (int x = 0; x < DEV_W; ++x) {
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*bmp.getAddr32(x, y) = get_canvas_color(x, y);
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}
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}
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surface->writePixels(bmp, 0, 0);
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}
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/**
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* Lucky for us, alpha is always in the same spot (SK_A32_SHIFT), for both RGBA and BGRA.
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* Thus this routine doesn't need to know the exact colortype
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*/
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static uint32_t premul(uint32_t color) {
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unsigned a = SkGetPackedA32(color);
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// these next three are not necessarily r,g,b in that order, but they are r,g,b in some order.
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unsigned c0 = SkGetPackedR32(color);
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unsigned c1 = SkGetPackedG32(color);
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unsigned c2 = SkGetPackedB32(color);
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c0 = SkMulDiv255Ceiling(c0, a);
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c1 = SkMulDiv255Ceiling(c1, a);
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c2 = SkMulDiv255Ceiling(c2, a);
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return SkPackARGB32NoCheck(a, c0, c1, c2);
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}
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static SkPMColor convert_to_PMColor(SkColorType ct, SkAlphaType at, uint32_t color) {
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if (kUnpremul_SkAlphaType == at) {
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color = premul(color);
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}
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switch (ct) {
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case kRGBA_8888_SkColorType:
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case kRGB_888x_SkColorType: // fallthrough
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color = SkSwizzle_RGBA_to_PMColor(color);
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break;
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case kBGRA_8888_SkColorType:
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color = SkSwizzle_BGRA_to_PMColor(color);
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break;
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default:
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SkASSERT(0);
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break;
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}
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return color;
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}
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static bool check_pixel(SkPMColor a, SkPMColor b, bool didPremulConversion) {
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if (!didPremulConversion) {
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return a == b;
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}
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int32_t aA = static_cast<int32_t>(SkGetPackedA32(a));
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int32_t aR = static_cast<int32_t>(SkGetPackedR32(a));
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int32_t aG = static_cast<int32_t>(SkGetPackedG32(a));
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int32_t aB = SkGetPackedB32(a);
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int32_t bA = static_cast<int32_t>(SkGetPackedA32(b));
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int32_t bR = static_cast<int32_t>(SkGetPackedR32(b));
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int32_t bG = static_cast<int32_t>(SkGetPackedG32(b));
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int32_t bB = static_cast<int32_t>(SkGetPackedB32(b));
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return aA == bA &&
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SkAbs32(aR - bR) <= 1 &&
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SkAbs32(aG - bG) <= 1 &&
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SkAbs32(aB - bB) <= 1;
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}
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bool write_should_succeed(const SkImageInfo& dstInfo, const SkImageInfo& srcInfo, bool isGPU) {
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if (!SkImageInfoValidConversion(dstInfo, srcInfo)) {
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return false;
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}
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if (!isGPU) {
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return true;
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}
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// The GPU backend supports writing unpremul data to a premul dst but not vice versa.
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if (srcInfo.alphaType() == kPremul_SkAlphaType &&
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dstInfo.alphaType() == kUnpremul_SkAlphaType) {
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return false;
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}
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if (!SkColorTypeIsAlwaysOpaque(srcInfo.colorType()) &&
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SkColorTypeIsAlwaysOpaque(dstInfo.colorType())) {
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return false;
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}
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// The source has no alpha value and the dst is only alpha
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if (SkColorTypeIsAlwaysOpaque(srcInfo.colorType()) &&
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SkColorTypeIsAlphaOnly(dstInfo.colorType())) {
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return false;
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}
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return true;
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}
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static bool check_write(skiatest::Reporter* reporter, SkSurface* surf, SkAlphaType surfaceAlphaType,
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const SkBitmap& bitmap, int writeX, int writeY) {
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size_t canvasRowBytes;
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const uint32_t* canvasPixels;
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// Can't use canvas->peekPixels(), as we are trying to look at GPU pixels sometimes as well.
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// At some point this will be unsupported, as we won't allow accessBitmap() to magically call
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// readPixels for the client.
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SkBitmap secretDevBitmap;
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secretDevBitmap.allocN32Pixels(surf->width(), surf->height());
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if (!surf->readPixels(secretDevBitmap, 0, 0)) {
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return false;
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}
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canvasRowBytes = secretDevBitmap.rowBytes();
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canvasPixels = static_cast<const uint32_t*>(secretDevBitmap.getPixels());
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if (nullptr == canvasPixels) {
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return false;
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}
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if (surf->width() != DEV_W || surf->height() != DEV_H) {
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return false;
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}
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const SkImageInfo bmInfo = bitmap.info();
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SkIRect writeRect = SkIRect::MakeXYWH(writeX, writeY, bitmap.width(), bitmap.height());
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for (int cy = 0; cy < DEV_H; ++cy) {
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for (int cx = 0; cx < DEV_W; ++cx) {
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SkPMColor canvasPixel = canvasPixels[cx];
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if (writeRect.contains(cx, cy)) {
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int bx = cx - writeX;
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int by = cy - writeY;
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uint32_t bmpColor8888 = get_bitmap_color(bx, by, bitmap.width(),
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bmInfo.colorType(), bmInfo.alphaType());
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bool mul = (kUnpremul_SkAlphaType == bmInfo.alphaType());
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SkPMColor bmpPMColor = convert_to_PMColor(bmInfo.colorType(), bmInfo.alphaType(),
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bmpColor8888);
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if (bmInfo.alphaType() == kOpaque_SkAlphaType ||
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surfaceAlphaType == kOpaque_SkAlphaType) {
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bmpPMColor |= 0xFF000000;
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}
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if (!check_pixel(bmpPMColor, canvasPixel, mul)) {
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ERRORF(reporter, "Expected canvas pixel at %d, %d to be 0x%08x, got 0x%08x. "
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"Write performed premul: %d", cx, cy, bmpPMColor, canvasPixel, mul);
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return false;
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}
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} else {
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SkPMColor testColor = get_canvas_color(cx, cy);
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if (canvasPixel != testColor) {
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ERRORF(reporter, "Canvas pixel outside write rect at %d, %d changed."
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" Should be 0x%08x, got 0x%08x. ", cx, cy, testColor, canvasPixel);
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return false;
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}
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}
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}
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if (cy != DEV_H -1) {
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const char* pad = reinterpret_cast<const char*>(canvasPixels + DEV_W);
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for (size_t px = 0; px < canvasRowBytes - 4 * DEV_W; ++px) {
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bool check;
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REPORTER_ASSERT(reporter, check = (pad[px] == static_cast<char>(DEV_PAD)));
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if (!check) {
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return false;
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}
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}
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}
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canvasPixels += canvasRowBytes/4;
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}
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return true;
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}
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#include "SkMallocPixelRef.h"
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// This is a tricky pattern, because we have to setConfig+rowBytes AND specify
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// a custom pixelRef (which also has to specify its rowBytes), so we have to be
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// sure that the two rowBytes match (and the infos match).
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//
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static bool alloc_row_bytes(SkBitmap* bm, const SkImageInfo& info, size_t rowBytes) {
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if (!bm->setInfo(info, rowBytes)) {
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return false;
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}
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sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeAllocate(info, rowBytes);
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bm->setPixelRef(std::move(pr), 0, 0);
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return true;
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}
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static void free_pixels(void* pixels, void* ctx) {
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sk_free(pixels);
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}
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static bool setup_bitmap(SkBitmap* bm, SkColorType ct, SkAlphaType at, int w, int h, int tightRB) {
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size_t rowBytes = tightRB ? 0 : 4 * w + 60;
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SkImageInfo info = SkImageInfo::Make(w, h, ct, at);
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if (!alloc_row_bytes(bm, info, rowBytes)) {
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return false;
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}
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for (int y = 0; y < h; ++y) {
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for (int x = 0; x < w; ++x) {
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*bm->getAddr32(x, y) = get_bitmap_color(x, y, w, ct, at);
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}
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}
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return true;
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}
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static void call_writepixels(SkSurface* surface) {
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const SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
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SkPMColor pixel = 0;
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surface->writePixels({info, &pixel, sizeof(SkPMColor)}, 0, 0);
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}
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DEF_TEST(WritePixelsSurfaceGenID, reporter) {
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const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
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auto surface(SkSurface::MakeRaster(info));
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uint32_t genID1 = surface->generationID();
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call_writepixels(surface.get());
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uint32_t genID2 = surface->generationID();
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REPORTER_ASSERT(reporter, genID1 != genID2);
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}
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static void test_write_pixels(skiatest::Reporter* reporter, SkSurface* surface,
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const SkImageInfo& surfaceInfo) {
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const SkIRect testRects[] = {
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// entire thing
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DEV_RECT,
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// larger on all sides
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SkIRect::MakeLTRB(-10, -10, DEV_W + 10, DEV_H + 10),
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// fully contained
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SkIRect::MakeLTRB(DEV_W / 4, DEV_H / 4, 3 * DEV_W / 4, 3 * DEV_H / 4),
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// outside top left
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SkIRect::MakeLTRB(-10, -10, -1, -1),
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// touching top left corner
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SkIRect::MakeLTRB(-10, -10, 0, 0),
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// overlapping top left corner
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SkIRect::MakeLTRB(-10, -10, DEV_W / 4, DEV_H / 4),
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// overlapping top left and top right corners
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SkIRect::MakeLTRB(-10, -10, DEV_W + 10, DEV_H / 4),
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// touching entire top edge
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SkIRect::MakeLTRB(-10, -10, DEV_W + 10, 0),
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// overlapping top right corner
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SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W + 10, DEV_H / 4),
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// contained in x, overlapping top edge
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SkIRect::MakeLTRB(DEV_W / 4, -10, 3 * DEV_W / 4, DEV_H / 4),
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// outside top right corner
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SkIRect::MakeLTRB(DEV_W + 1, -10, DEV_W + 10, -1),
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// touching top right corner
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SkIRect::MakeLTRB(DEV_W, -10, DEV_W + 10, 0),
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// overlapping top left and bottom left corners
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SkIRect::MakeLTRB(-10, -10, DEV_W / 4, DEV_H + 10),
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// touching entire left edge
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SkIRect::MakeLTRB(-10, -10, 0, DEV_H + 10),
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// overlapping bottom left corner
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SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W / 4, DEV_H + 10),
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// contained in y, overlapping left edge
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SkIRect::MakeLTRB(-10, DEV_H / 4, DEV_W / 4, 3 * DEV_H / 4),
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// outside bottom left corner
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SkIRect::MakeLTRB(-10, DEV_H + 1, -1, DEV_H + 10),
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// touching bottom left corner
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SkIRect::MakeLTRB(-10, DEV_H, 0, DEV_H + 10),
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// overlapping bottom left and bottom right corners
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SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
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// touching entire left edge
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SkIRect::MakeLTRB(0, DEV_H, DEV_W, DEV_H + 10),
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// overlapping bottom right corner
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SkIRect::MakeLTRB(3 * DEV_W / 4, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
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// overlapping top right and bottom right corners
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SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W + 10, DEV_H + 10),
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};
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SkCanvas* canvas = surface->getCanvas();
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static const struct {
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SkColorType fColorType;
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SkAlphaType fAlphaType;
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} gSrcConfigs[] = {
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{kRGBA_8888_SkColorType, kPremul_SkAlphaType},
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{kRGBA_8888_SkColorType, kUnpremul_SkAlphaType},
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{kRGB_888x_SkColorType, kOpaque_SkAlphaType},
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{kBGRA_8888_SkColorType, kPremul_SkAlphaType},
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{kBGRA_8888_SkColorType, kUnpremul_SkAlphaType},
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};
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for (size_t r = 0; r < SK_ARRAY_COUNT(testRects); ++r) {
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const SkIRect& rect = testRects[r];
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for (int tightBmp = 0; tightBmp < 2; ++tightBmp) {
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for (size_t c = 0; c < SK_ARRAY_COUNT(gSrcConfigs); ++c) {
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const SkColorType ct = gSrcConfigs[c].fColorType;
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const SkAlphaType at = gSrcConfigs[c].fAlphaType;
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bool isGPU = SkToBool(surface->getCanvas()->getGrContext());
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fill_surface(surface);
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SkBitmap bmp;
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REPORTER_ASSERT(reporter, setup_bitmap(&bmp, ct, at, rect.width(),
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rect.height(), SkToBool(tightBmp)));
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uint32_t idBefore = surface->generationID();
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// sk_tool_utils::write_pixels(&canvas, bmp, rect.fLeft, rect.fTop, ct, at);
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surface->writePixels(bmp, rect.fLeft, rect.fTop);
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uint32_t idAfter = surface->generationID();
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REPORTER_ASSERT(reporter, check_write(reporter, surface, surfaceInfo.alphaType(),
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bmp, rect.fLeft, rect.fTop));
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// we should change the genID iff pixels were actually written.
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SkIRect canvasRect = SkIRect::MakeSize(canvas->getBaseLayerSize());
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SkIRect writeRect = SkIRect::MakeXYWH(rect.fLeft, rect.fTop,
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bmp.width(), bmp.height());
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bool expectSuccess = SkIRect::Intersects(canvasRect, writeRect) &&
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write_should_succeed(surfaceInfo, bmp.info(), isGPU);
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REPORTER_ASSERT(reporter, expectSuccess == (idBefore != idAfter));
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}
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}
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}
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}
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DEF_TEST(WritePixels, reporter) {
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const SkImageInfo info = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
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for (auto& tightRowBytes : { true, false }) {
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const size_t rowBytes = tightRowBytes ? info.minRowBytes() : 4 * DEV_W + 100;
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const size_t size = info.computeByteSize(rowBytes);
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void* pixels = sk_malloc_throw(size);
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// if rowBytes isn't tight then set the padding to a known value
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if (!tightRowBytes) {
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memset(pixels, DEV_PAD, size);
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}
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auto surface(SkSurface::MakeRasterDirectReleaseProc(info, pixels, rowBytes,
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free_pixels, nullptr));
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test_write_pixels(reporter, surface.get(), info);
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}
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}
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static void test_write_pixels(skiatest::Reporter* reporter, GrContext* context, int sampleCnt) {
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const SkImageInfo ii = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
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for (auto& origin : { kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin }) {
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sk_sp<SkSurface> surface(SkSurface::MakeRenderTarget(context,
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SkBudgeted::kNo, ii, sampleCnt,
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origin, nullptr));
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if (surface) {
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test_write_pixels(reporter, surface.get(), ii);
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}
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}
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}
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(WritePixels_Gpu, reporter, ctxInfo) {
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test_write_pixels(reporter, ctxInfo.grContext(), 1);
|
|
}
|
|
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(WritePixelsMSAA_Gpu, reporter, ctxInfo) {
|
|
test_write_pixels(reporter, ctxInfo.grContext(), 1);
|
|
}
|
|
|
|
static void test_write_pixels_non_texture(skiatest::Reporter* reporter, GrContext* context,
|
|
int sampleCnt) {
|
|
GrGpu* gpu = context->contextPriv().getGpu();
|
|
|
|
for (auto& origin : { kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin }) {
|
|
GrBackendTexture backendTex = gpu->createTestingOnlyBackendTexture(
|
|
nullptr, DEV_W, DEV_H, GrColorType::kRGBA_8888, true, GrMipMapped::kNo);
|
|
if (!backendTex.isValid()) {
|
|
continue;
|
|
}
|
|
SkColorType colorType = kN32_SkColorType;
|
|
sk_sp<SkSurface> surface(SkSurface::MakeFromBackendTextureAsRenderTarget(
|
|
context, backendTex, origin, sampleCnt, colorType, nullptr, nullptr));
|
|
if (surface) {
|
|
auto ii = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
|
|
test_write_pixels(reporter, surface.get(), ii);
|
|
}
|
|
gpu->deleteTestingOnlyBackendTexture(backendTex);
|
|
}
|
|
}
|
|
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(WritePixelsNonTexture_Gpu, reporter, ctxInfo) {
|
|
test_write_pixels_non_texture(reporter, ctxInfo.grContext(), 1);
|
|
}
|
|
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(WritePixelsNonTextureMSAA_Gpu, reporter, ctxInfo) {
|
|
test_write_pixels_non_texture(reporter, ctxInfo.grContext(), 4);
|
|
}
|
|
|
|
static sk_sp<SkSurface> create_surf(GrContext* context, int width, int height) {
|
|
const SkImageInfo ii = SkImageInfo::Make(width, height,
|
|
kRGBA_8888_SkColorType, kPremul_SkAlphaType);
|
|
|
|
sk_sp<SkSurface> surf = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, ii);
|
|
surf->flush();
|
|
return surf;
|
|
}
|
|
|
|
static sk_sp<SkImage> upload(const sk_sp<SkSurface>& surf, SkColor color) {
|
|
const SkImageInfo smII = SkImageInfo::Make(16, 16, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
|
|
SkBitmap bm;
|
|
bm.allocPixels(smII);
|
|
bm.eraseColor(color);
|
|
|
|
surf->writePixels(bm, 0, 0);
|
|
|
|
return surf->makeImageSnapshot();
|
|
}
|
|
|
|
// This is tests whether the first writePixels is completed before the
|
|
// second writePixels takes effect (i.e., that writePixels correctly flushes
|
|
// in between uses of the shared backing resource).
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(WritePixelsPendingIO, reporter, ctxInfo) {
|
|
GrContext* context = ctxInfo.grContext();
|
|
GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();
|
|
|
|
static const int kFullSize = 62;
|
|
static const int kHalfSize = 31;
|
|
|
|
static const uint32_t kLeftColor = 0xFF222222;
|
|
static const uint32_t kRightColor = 0xFFAAAAAA;
|
|
|
|
const SkImageInfo fullII = SkImageInfo::Make(kFullSize, kFullSize,
|
|
kRGBA_8888_SkColorType, kPremul_SkAlphaType);
|
|
const SkImageInfo halfII = SkImageInfo::Make(kHalfSize, kFullSize,
|
|
kRGBA_8888_SkColorType, kPremul_SkAlphaType);
|
|
|
|
sk_sp<SkSurface> dest = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, fullII);
|
|
|
|
{
|
|
// Seed the resource cached with a scratch texture that will be
|
|
// reused by writeSurfacePixels
|
|
GrSurfaceDesc desc;
|
|
desc.fFlags = kNone_GrSurfaceFlags;
|
|
desc.fWidth = 32;
|
|
desc.fHeight = 64;
|
|
desc.fConfig = kRGBA_8888_GrPixelConfig;
|
|
|
|
const GrBackendFormat format =
|
|
context->contextPriv().caps()->getBackendFormatFromColorType(kRGBA_8888_SkColorType);
|
|
|
|
sk_sp<GrTextureProxy> temp = proxyProvider->createProxy(
|
|
format, desc, kTopLeft_GrSurfaceOrigin, SkBackingFit::kApprox, SkBudgeted::kYes);
|
|
temp->instantiate(context->contextPriv().resourceProvider());
|
|
}
|
|
|
|
// Create the surfaces and flush them to ensure there is no lingering pendingIO
|
|
sk_sp<SkSurface> leftSurf = create_surf(context, kHalfSize, kFullSize);
|
|
sk_sp<SkSurface> rightSurf = create_surf(context, kHalfSize, kFullSize);
|
|
|
|
sk_sp<SkImage> leftImg = upload(std::move(leftSurf), kLeftColor);
|
|
dest->getCanvas()->drawImage(std::move(leftImg), 0, 0);
|
|
|
|
sk_sp<SkImage> rightImg = upload(std::move(rightSurf), kRightColor);
|
|
dest->getCanvas()->drawImage(std::move(rightImg), kHalfSize, 0);
|
|
|
|
SkBitmap bm;
|
|
bm.allocPixels(fullII);
|
|
SkAssertResult(dest->readPixels(bm, 0, 0));
|
|
|
|
bool isCorrect = true;
|
|
for (int y = 0; isCorrect && y < 16; ++y) {
|
|
const uint32_t* sl = bm.getAddr32(0, y);
|
|
|
|
for (int x = 0; x < 16; ++x) {
|
|
if (kLeftColor != sl[x]) {
|
|
isCorrect = false;
|
|
break;
|
|
}
|
|
}
|
|
for (int x = kHalfSize; x < kHalfSize+16; ++x) {
|
|
if (kRightColor != sl[x]) {
|
|
isCorrect = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
REPORTER_ASSERT(reporter, isCorrect);
|
|
}
|