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| 1 /* | |
| 2 * Copyright 2013 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 #ifndef SkCLImageDiffer_DEFINED | |
| 9 #define SkCLImageDiffer_DEFINED | |
| 10 | |
| 11 #if SK_BUILD_FOR_MAC | |
| 12 # include <OpenCL/cl.h> | |
| 13 #else | |
| 14 # include <CL/cl.h> | |
| 15 #endif | |
| 16 #include "SkTDArray.h" | |
| 17 | |
| 18 #include "SkImageDiffer.h" | |
| 19 | |
| 20 class SkStream; | |
| 21 | |
| 22 /** | |
| 23 * An SkImageDiffer that requires initialization with an OpenCL device and conte
xt. | |
| 24 */ | |
| 25 class SkCLImageDiffer : public SkImageDiffer { | |
| 26 public: | |
| 27 SkCLImageDiffer(); | |
| 28 | |
| 29 virtual bool requiresOpenCL() SK_OVERRIDE { return true; } | |
| 30 | |
| 31 /** | |
| 32 * Initializes the OpenCL resources this differ needs to work | |
| 33 * @param device An OpenCL device | |
| 34 * @param context An OpenCL context of the given device | |
| 35 * @return True on success, false otherwise | |
| 36 */ | |
| 37 virtual bool init(cl_device_id device, cl_context context); | |
| 38 | |
| 39 protected: | |
| 40 /** | |
| 41 * Called by init after fDevice, fContext, and fCommandQueue are successfull
y initialized | |
| 42 * @return True on success, false otherwise | |
| 43 */ | |
| 44 virtual bool onInit() = 0; | |
| 45 | |
| 46 /** | |
| 47 * Loads an OpenCL kernel from the file with the given named entry point. Th
is only works after | |
| 48 * init is called. | |
| 49 * @param file The file path of the kernel | |
| 50 * @param name The name of the entry point of the desired kernel in the f
ile | |
| 51 * @param kernel A pointer to return the loaded kernel into | |
| 52 * @return True on success, false otherwise | |
| 53 */ | |
| 54 bool loadKernelFile(const char file[], const char name[], cl_kernel* kernel)
; | |
| 55 | |
| 56 /** | |
| 57 * Loads an OpenCL kernel from the stream with the given named entry point.
This only works | |
| 58 * after init is called. | |
| 59 * @param stream The stream that contains the kernel | |
| 60 * @param name The name of the entry point of the desired kernel in the
stream | |
| 61 * @param kernel A pointer to return the loaded kernel into | |
| 62 * @return True on success, false otherwise | |
| 63 */ | |
| 64 bool loadKernelStream(SkStream* stream, const char name[], cl_kernel* kernel
); | |
| 65 | |
| 66 /** | |
| 67 * Loads an OpenCL kernel from the source string with the given named entry
point. This only | |
| 68 * works after init is called. | |
| 69 * @param source The string that contains the kernel | |
| 70 * @param name The name of the entry point of the desired kernel in the
source string | |
| 71 * @param kernel A pointer to return the loaded kernel into | |
| 72 * @return True on success, false otherwise | |
| 73 */ | |
| 74 bool loadKernelSource(const char source[], const char name[], cl_kernel* ker
nel); | |
| 75 | |
| 76 /** | |
| 77 * Loads a read only copy of the given bitmap into device memory and returns
the block of | |
| 78 * memory. This only works after init is called. | |
| 79 * @param bitmap The bitmap to load into memory | |
| 80 * @param image A pointer to return the allocated image to | |
| 81 * @return True on success, false otherwise | |
| 82 */ | |
| 83 bool makeImage2D(SkBitmap* bitmap, cl_mem* image); | |
| 84 | |
| 85 cl_device_id fDevice; | |
| 86 cl_context fContext; | |
| 87 cl_command_queue fCommandQueue; | |
| 88 | |
| 89 private: | |
| 90 | |
| 91 typedef SkImageDiffer INHERITED; | |
| 92 }; | |
| 93 | |
| 94 #endif | |
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