Greg Daniel | b2acf0a | 2018-09-12 09:17:11 -0400 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2018 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 | // This is a GPU-backend specific test. It relies on static intializers to work |
| 9 | |
| 10 | #include "SkTypes.h" |
| 11 | |
| 12 | #if SK_SUPPORT_GPU && defined(SK_BUILD_FOR_ANDROID) && __ANDROID_API__ >= 26 |
| 13 | |
| 14 | #include "GrAHardwareBufferImageGenerator.h" |
| 15 | #include "GrContext.h" |
| 16 | #include "GrContextFactory.h" |
| 17 | #include "GrContextPriv.h" |
| 18 | #include "GrGpu.h" |
| 19 | #include "SkImage.h" |
| 20 | #include "SkSurface.h" |
| 21 | #include "Test.h" |
| 22 | |
| 23 | #include <android/hardware_buffer.h> |
| 24 | #include <cinttypes> |
| 25 | |
| 26 | static const int DEV_W = 16, DEV_H = 16; |
| 27 | |
| 28 | static SkPMColor get_src_color(int x, int y) { |
| 29 | SkASSERT(x >= 0 && x < DEV_W); |
| 30 | SkASSERT(y >= 0 && y < DEV_H); |
| 31 | |
| 32 | U8CPU r = x; |
| 33 | U8CPU g = y; |
| 34 | U8CPU b = 0xc; |
| 35 | |
| 36 | U8CPU a = 0xff; |
| 37 | switch ((x+y) % 5) { |
| 38 | case 0: |
| 39 | a = 0xff; |
| 40 | break; |
| 41 | case 1: |
| 42 | a = 0x80; |
| 43 | break; |
| 44 | case 2: |
| 45 | a = 0xCC; |
| 46 | break; |
| 47 | case 4: |
| 48 | a = 0x01; |
| 49 | break; |
| 50 | case 3: |
| 51 | a = 0x00; |
| 52 | break; |
| 53 | } |
| 54 | a = 0xff; |
| 55 | return SkPremultiplyARGBInline(a, r, g, b); |
| 56 | } |
| 57 | |
| 58 | static SkBitmap make_src_bitmap() { |
| 59 | static SkBitmap bmp; |
| 60 | if (bmp.isNull()) { |
| 61 | bmp.allocN32Pixels(DEV_W, DEV_H); |
| 62 | intptr_t pixels = reinterpret_cast<intptr_t>(bmp.getPixels()); |
| 63 | for (int y = 0; y < DEV_H; ++y) { |
| 64 | for (int x = 0; x < DEV_W; ++x) { |
| 65 | SkPMColor* pixel = reinterpret_cast<SkPMColor*>( |
| 66 | pixels + y * bmp.rowBytes() + x * bmp.bytesPerPixel()); |
| 67 | *pixel = get_src_color(x, y); |
| 68 | } |
| 69 | } |
| 70 | } |
| 71 | return bmp; |
| 72 | } |
| 73 | |
| 74 | static bool check_read(skiatest::Reporter* reporter, const SkBitmap& expectedBitmap, |
| 75 | const SkBitmap& actualBitmap) { |
| 76 | bool result = true; |
| 77 | for (int y = 0; y < DEV_H && result; ++y) { |
| 78 | for (int x = 0; x < DEV_W && result; ++x) { |
| 79 | const uint32_t srcPixel = *expectedBitmap.getAddr32(x, y); |
| 80 | const uint32_t dstPixel = *actualBitmap.getAddr32(x, y); |
| 81 | if (srcPixel != dstPixel) { |
| 82 | ERRORF(reporter, "Expected readback pixel (%d, %d) value 0x%08x, got 0x%08x.", |
| 83 | x, y, srcPixel, dstPixel); |
| 84 | result = false; |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | return result; |
| 89 | } |
| 90 | |
| 91 | static void cleanup_resources(AHardwareBuffer* buffer) { |
| 92 | if (buffer) { |
| 93 | AHardwareBuffer_release(buffer); |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | // Basic test to make sure we can import an AHardwareBuffer into an SkImage and draw it into a |
| 98 | // surface. |
| 99 | DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrAHardwareBuffer_BasicDrawTest, |
| 100 | reporter, context_info) { |
| 101 | GrContext* context = context_info.grContext(); |
| 102 | if (!context->contextPriv().caps()->supportsAHardwareBufferImages()) { |
| 103 | return; |
| 104 | } |
| 105 | |
| 106 | /////////////////////////////////////////////////////////////////////////// |
| 107 | // Setup SkBitmaps |
| 108 | /////////////////////////////////////////////////////////////////////////// |
| 109 | |
| 110 | const SkBitmap srcBitmap = make_src_bitmap(); |
| 111 | |
| 112 | /////////////////////////////////////////////////////////////////////////// |
| 113 | // Setup AHardwareBuffer |
| 114 | /////////////////////////////////////////////////////////////////////////// |
| 115 | |
| 116 | AHardwareBuffer* buffer = nullptr; |
| 117 | |
| 118 | AHardwareBuffer_Desc hwbDesc; |
| 119 | hwbDesc.width = DEV_W; |
| 120 | hwbDesc.height = DEV_H; |
| 121 | hwbDesc.layers = 1; |
| 122 | hwbDesc.usage = AHARDWAREBUFFER_USAGE_CPU_READ_NEVER | |
| 123 | AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN | |
| 124 | AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE; |
| 125 | hwbDesc.format = AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM; |
| 126 | // The following three are not used in the allocate |
| 127 | hwbDesc.stride = 0; |
| 128 | hwbDesc.rfu0= 0; |
| 129 | hwbDesc.rfu1= 0; |
| 130 | |
| 131 | if (int error = AHardwareBuffer_allocate(&hwbDesc, &buffer)) { |
| 132 | ERRORF(reporter, "Failed to allocated hardware buffer, error: %d", error); |
| 133 | cleanup_resources(buffer); |
| 134 | return; |
| 135 | } |
| 136 | |
| 137 | // Get actual desc for allocated buffer so we know the stride for uploading cpu data. |
| 138 | AHardwareBuffer_describe(buffer, &hwbDesc); |
| 139 | |
| 140 | uint32_t* bufferAddr; |
| 141 | if (AHardwareBuffer_lock(buffer, AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN, -1, nullptr, |
| 142 | reinterpret_cast<void**>(&bufferAddr))) { |
| 143 | ERRORF(reporter, "Failed to lock hardware buffer"); |
| 144 | cleanup_resources(buffer); |
| 145 | return; |
| 146 | } |
| 147 | |
| 148 | int bbp = srcBitmap.bytesPerPixel(); |
| 149 | uint32_t* src = (uint32_t*)srcBitmap.getPixels(); |
| 150 | uint32_t* dst = bufferAddr; |
| 151 | for (int y = 0; y < DEV_H; ++y) { |
| 152 | memcpy(dst, src, DEV_W * bbp); |
| 153 | src += DEV_W; |
| 154 | dst += hwbDesc.stride; |
| 155 | } |
| 156 | AHardwareBuffer_unlock(buffer, nullptr); |
| 157 | |
| 158 | /////////////////////////////////////////////////////////////////////////// |
| 159 | // Wrap AHardwareBuffer in SkImage |
| 160 | /////////////////////////////////////////////////////////////////////////// |
| 161 | |
| 162 | sk_sp<SkImage> image = SkImage::MakeFromAHardwareBuffer(buffer); |
| 163 | REPORTER_ASSERT(reporter, image); |
| 164 | |
| 165 | /////////////////////////////////////////////////////////////////////////// |
| 166 | // Make a surface to draw into |
| 167 | /////////////////////////////////////////////////////////////////////////// |
| 168 | |
| 169 | SkImageInfo imageInfo = SkImageInfo::Make(DEV_W, DEV_H, kRGBA_8888_SkColorType, |
| 170 | kPremul_SkAlphaType); |
| 171 | sk_sp<SkSurface> surface = SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, |
| 172 | imageInfo); |
| 173 | REPORTER_ASSERT(reporter, surface); |
| 174 | |
| 175 | /////////////////////////////////////////////////////////////////////////// |
| 176 | // Draw the AHardwareBuffer SkImage into surface |
| 177 | /////////////////////////////////////////////////////////////////////////// |
| 178 | |
| 179 | surface->getCanvas()->drawImage(image, 0, 0); |
| 180 | |
| 181 | SkBitmap readbackBitmap; |
| 182 | readbackBitmap.allocN32Pixels(DEV_W, DEV_H); |
| 183 | |
| 184 | REPORTER_ASSERT(reporter, surface->readPixels(readbackBitmap, 0, 0)); |
| 185 | REPORTER_ASSERT(reporter, check_read(reporter, srcBitmap, readbackBitmap)); |
| 186 | |
| 187 | image.reset(); |
| 188 | |
| 189 | cleanup_resources(buffer); |
| 190 | } |
| 191 | |
| 192 | #endif |