1 #ifndef _MOVIT_TEST_UTIL_H
2 #define _MOVIT_TEST_UTIL_H 1
3 
4 #include <epoxy/gl.h>
5 #ifdef HAVE_BENCHMARK
6 #include <benchmark/benchmark.h>
7 #endif
8 #include "effect_chain.h"
9 #include "fp16.h"
10 #include "image_format.h"
11 
12 namespace movit {
13 
14 class Input;
15 
16 class EffectChainTester {
17 public:
18 	EffectChainTester(const float *data, unsigned width, unsigned height,
19 	                  MovitPixelFormat pixel_format = FORMAT_GRAYSCALE,
20 	                  Colorspace color_space = COLORSPACE_sRGB,
21 	                  GammaCurve gamma_curve = GAMMA_LINEAR,
22 	                  GLenum framebuffer_format = GL_RGBA16F_ARB);
23 	~EffectChainTester();
24 
get_chain()25 	EffectChain *get_chain() { return &chain; }
26 	Input *add_input(const float *data, MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve, int input_width = -1, int input_height = -1);
27 	Input *add_input(const fp16_int_t *data, MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve, int input_width = -1, int input_height = -1);
28 	Input *add_input(const unsigned char *data, MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve, int input_width = -1, int input_height = -1);
29 
30 	void run(float *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
31 	void run(const std::vector<float *> &out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
32 	void run(unsigned char *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
33 	void run(const std::vector<unsigned char *> &out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
34 	void run(uint16_t *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
35 	void run_10_10_10_2(uint32_t *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
36 
37 #ifdef HAVE_BENCHMARK
38 	void benchmark(benchmark::State &state, float *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
39 	void benchmark(benchmark::State &state, const std::vector<float *> &out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
40 	void benchmark(benchmark::State &state, fp16_int_t *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
41 	void benchmark(benchmark::State &state, const std::vector<fp16_int_t *> &out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
42 	void benchmark(benchmark::State &state, unsigned char *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
43 	void benchmark(benchmark::State &state, const std::vector<unsigned char *> &out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
44 	void benchmark(benchmark::State &state, uint16_t *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
45 	void benchmark_10_10_10_2(benchmark::State &state, uint32_t *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
46 #endif
47 
48 	void add_output(const ImageFormat &format, OutputAlphaFormat alpha_format);
49 	void add_ycbcr_output(const ImageFormat &format, OutputAlphaFormat alpha_format, const YCbCrFormat &ycbcr_format, YCbCrOutputSplitting output_splitting = YCBCR_OUTPUT_INTERLEAVED, GLenum output_type = GL_UNSIGNED_BYTE);
50 
51 private:
52 	void finalize_chain(Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format);
53 
54 	template<class T>
55 	void internal_run(const std::vector<T *> &out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format = OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED
56 #ifdef HAVE_BENCHMARK
57 		, benchmark::State *state = nullptr
58 #endif
59 );
60 
61 	EffectChain chain;
62 	unsigned width, height;
63 	GLenum framebuffer_format;
64 	bool output_added;
65 	bool finalized;
66 };
67 
68 void expect_equal(const float *ref, const float *result, unsigned width, unsigned height, float largest_difference_limit = 1.5 / 255.0, float rms_limit = 0.2 / 255.0);
69 void expect_equal(const unsigned char *ref, const unsigned char *result, unsigned width, unsigned height, unsigned largest_difference_limit = 1, float rms_limit = 0.2);
70 void expect_equal(const uint16_t *ref, const uint16_t *result, unsigned width, unsigned height, unsigned largest_difference_limit = 1, float rms_limit = 0.2);
71 void expect_equal(const int *ref, const int *result, unsigned width, unsigned height, unsigned largest_difference_limit = 1, float rms_limit = 0.2);
72 void test_accuracy(const float *expected, const float *result, unsigned num_values, double absolute_error_limit, double relative_error_limit, double local_relative_error_limit, double rms_limit);
73 
74 // Convert an sRGB encoded value (0.0 to 1.0, inclusive) to linear light.
75 // Undefined for values outside 0.0..1.0.
76 double srgb_to_linear(double x);
77 
78 // Convert a value in linear light (0.0 to 1.0, inclusive) to sRGB.
79 // Undefined for values outside 0.0..1.0.
80 double linear_to_srgb(double x);
81 
82 // A RAII class to pretend temporarily that we don't support compute shaders
83 // even if we do. Useful for testing or benchmarking the fragment shader path
84 // also on systems that support compute shaders.
85 class DisableComputeShadersTemporarily
86 {
87 public:
88 	// If disable_compute_shaders is false, this class effectively does nothing.
89 	// Otherwise, sets movit_compute_shaders_supported unconditionally to false.
90 	DisableComputeShadersTemporarily(bool disable_compute_shaders);
91 
92 	// Restore the old value of movit_compute_shaders_supported.
93 	~DisableComputeShadersTemporarily();
94 
95 	// Whether the current test should be skipped due to lack of compute shaders
96 	// (ie., disable_compute_shaders was _false_, but the system does not support
97 	// compute shaders). Will also output a message to stderr if so.
98 	bool should_skip();
99 
100 #ifdef HAVE_BENCHMARK
101 	// Same, but outputs a message to the benchmark instead of to stderr.
102 	bool should_skip(benchmark::State *benchmark_state);
103 #endif
104 
active()105 	bool active() const { return disable_compute_shaders; }
106 
107 private:
108 	bool disable_compute_shaders, saved_compute_shaders_supported;
109 };
110 
111 }  // namespace movit
112 
113 #endif  // !defined(_MOVIT_TEST_UTIL_H)
114