#include "resource_pool.h"
#include "ycbcr_input.h"
+using namespace std;
+
namespace movit {
TEST(YCbCrInputTest, Simple444) {
};
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
expect_equal(expected_data, out_data, 4 * width, height, 0.025, 0.002);
}
+// Very similar to Rec709.
+TEST(YCbCrInputTest, ChangeFormat) {
+ const int width = 1;
+ const int height = 5;
+
+ // Pure-color test inputs, calculated with the formulas in Rec. 709
+ // page 19, items 3.4 and 3.5.
+ unsigned char y[width * height] = {
+ 16, 235, 63, 173, 32,
+ };
+ unsigned char cb[width * height] = {
+ 128, 128, 102, 42, 240,
+ };
+ unsigned char cr[width * height] = {
+ 128, 128, 240, 26, 118,
+ };
+ float expected_data[4 * width * height] = {
+ 0.0, 0.0, 0.0, 1.0,
+ 1.0, 1.0, 1.0, 1.0,
+ 1.0, 0.0, 0.0, 1.0,
+ 0.0, 1.0, 0.0, 1.0,
+ 0.0, 0.0, 1.0, 1.0,
+ };
+ float out_data[4 * width * height];
+
+ EffectChainTester tester(nullptr, width, height);
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_sRGB;
+ format.gamma_curve = GAMMA_sRGB;
+
+ // Basically all of these values will be changed after finalize.
+ YCbCrFormat initial_ycbcr_format;
+ initial_ycbcr_format.luma_coefficients = YCBCR_REC_601;
+ initial_ycbcr_format.full_range = true;
+ initial_ycbcr_format.num_levels = 1024;
+ initial_ycbcr_format.chroma_subsampling_x = 1;
+ initial_ycbcr_format.chroma_subsampling_y = 5;
+ initial_ycbcr_format.cb_x_position = 0.0f;
+ initial_ycbcr_format.cb_y_position = 0.5f;
+ initial_ycbcr_format.cr_x_position = 0.0f;
+ initial_ycbcr_format.cr_y_position = 0.5f;
+
+ YCbCrInput *input = new YCbCrInput(format, initial_ycbcr_format, width, height);
+ input->set_pixel_data(0, y);
+ input->set_pixel_data(1, cb);
+ input->set_pixel_data(2, cr);
+ tester.get_chain()->add_input(input);
+
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_sRGB);
+
+ // Rerun with the right format.
+ YCbCrFormat ycbcr_format;
+ ycbcr_format.luma_coefficients = YCBCR_REC_709;
+ ycbcr_format.full_range = false;
+ ycbcr_format.num_levels = 256;
+ ycbcr_format.chroma_subsampling_x = 1;
+ ycbcr_format.chroma_subsampling_y = 1;
+ ycbcr_format.cb_x_position = 0.5f;
+ ycbcr_format.cb_y_position = 0.5f;
+ ycbcr_format.cr_x_position = 0.5f;
+ ycbcr_format.cr_y_position = 0.5f;
+
+ input->change_ycbcr_format(ycbcr_format);
+ input->set_width(width);
+ input->set_height(height);
+
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_sRGB);
+
+ // Y'CbCr isn't 100% accurate (the input values are rounded),
+ // so we need some leeway.
+ expect_equal(expected_data, out_data, 4 * width, height, 0.025, 0.002);
+}
+
TEST(YCbCrInputTest, Subsampling420) {
const int width = 4;
const int height = 4;
};
float out_data[width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, width * height * 3, data, GL_STREAM_DRAW);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
(expanded_data[i * 3 + 2] << 20);
}
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[4 * width * height];
- EffectChainTester tester(NULL, width, height);
+ EffectChainTester tester(nullptr, width, height);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
expect_equal(expected_data, out_data, 4 * width, height, 0.002, 0.0003);
}
+// Effectively scales down its input linearly by 4x (and repeating it),
+// which is not attainable without mipmaps.
+class MipmapNeedingEffect : public Effect {
+public:
+ MipmapNeedingEffect() {}
+ MipmapRequirements needs_mipmaps() const override { return NEEDS_MIPMAPS; }
+
+ // To be allowed to mess with the sampler state.
+ bool needs_texture_bounce() const override { return true; }
+
+ string effect_type_id() const override { return "MipmapNeedingEffect"; }
+ string output_fragment_shader() override { return read_file("mipmap_needing_effect.frag"); }
+ void inform_added(EffectChain *chain) override { this->chain = chain; }
+
+ void set_gl_state(GLuint glsl_program_num, const string& prefix, unsigned *sampler_num) override
+ {
+ Node *self = chain->find_node_for_effect(this);
+ glActiveTexture(chain->get_input_sampler(self, 0));
+ check_error();
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ check_error();
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+ check_error();
+ }
+
+private:
+ EffectChain *chain;
+};
+
+// Basically the same test as EffectChainTest_MipmapGenerationWorks,
+// just with the data converted to Y'CbCr (as red only).
+TEST(EffectChainTest, MipmapGenerationWorks) {
+ const unsigned width = 4;
+ const unsigned height = 16;
+ float red_data[width * height] = { // In 4x4 blocks.
+ 1.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 1.0f,
+
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.5f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 1.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 1.0f, 1.0f, 0.0f,
+ 0.0f, 1.0f, 1.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ };
+ float expected_data[width * height] = { // Repeated four times each way.
+ 0.125f, 0.125f, 0.125f, 0.125f,
+ 0.09375f, 0.09375f, 0.09375f, 0.09375f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.25f, 0.25f, 0.25f, 0.25f,
+
+ 0.125f, 0.125f, 0.125f, 0.125f,
+ 0.09375f, 0.09375f, 0.09375f, 0.09375f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.25f, 0.25f, 0.25f, 0.25f,
+
+ 0.125f, 0.125f, 0.125f, 0.125f,
+ 0.09375f, 0.09375f, 0.09375f, 0.09375f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.25f, 0.25f, 0.25f, 0.25f,
+
+ 0.125f, 0.125f, 0.125f, 0.125f,
+ 0.09375f, 0.09375f, 0.09375f, 0.09375f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.25f, 0.25f, 0.25f, 0.25f,
+ };
+ float expected_data_rgba[width * height * 4];
+ unsigned char ycbcr_data[width * height * 3];
+
+ // Convert to Y'CbCr.
+ YCbCrFormat ycbcr_format;
+ ycbcr_format.luma_coefficients = YCBCR_REC_709;
+ ycbcr_format.full_range = false;
+ ycbcr_format.num_levels = 256;
+ ycbcr_format.chroma_subsampling_x = 1;
+ ycbcr_format.chroma_subsampling_y = 1;
+ ycbcr_format.cb_x_position = 0.5f;
+ ycbcr_format.cb_y_position = 0.5f;
+ ycbcr_format.cr_x_position = 0.5f;
+ ycbcr_format.cr_y_position = 0.5f;
+
+ float offset[3];
+ Eigen::Matrix3d ycbcr_to_rgb;
+ compute_ycbcr_matrix(ycbcr_format, offset, &ycbcr_to_rgb);
+
+ Eigen::Matrix3d rgb_to_ycbcr = ycbcr_to_rgb.inverse();
+ for (unsigned i = 0; i < 64; ++i) {
+ Eigen::Vector3d rgb(red_data[i], 0.0, 0.0);
+ Eigen::Vector3d ycbcr = rgb_to_ycbcr * rgb;
+ ycbcr(0) += offset[0];
+ ycbcr(1) += offset[1];
+ ycbcr(2) += offset[2];
+ ycbcr_data[i * 3 + 0] = lrintf(ycbcr(0) * 255.0);
+ ycbcr_data[i * 3 + 1] = lrintf(ycbcr(1) * 255.0);
+ ycbcr_data[i * 3 + 2] = lrintf(ycbcr(2) * 255.0);
+ }
+
+ // Expand expected_data to RGBA.
+ for (unsigned i = 0; i < 64; ++i) {
+ expected_data_rgba[i * 4 + 0] = expected_data[i];
+ expected_data_rgba[i * 4 + 1] = 0.0f;
+ expected_data_rgba[i * 4 + 2] = 0.0f;
+ expected_data_rgba[i * 4 + 3] = 1.0f;
+ }
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_sRGB;
+ format.gamma_curve = GAMMA_sRGB;
+
+ float out_data[width * height * 4];
+ EffectChainTester tester(nullptr, width, height);
+ YCbCrInput *input = new YCbCrInput(format, ycbcr_format, width, height, YCBCR_INPUT_INTERLEAVED);
+ input->set_pixel_data(0, ycbcr_data);
+ tester.get_chain()->add_input(input);
+ tester.get_chain()->add_effect(new MipmapNeedingEffect());
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
+
+ // The usual pretty loose limits.
+ expect_equal(expected_data_rgba, out_data, width * 4, height, 0.025, 0.002);
+}
+
} // namespace movit
projects / movit / blobdiff