Method SetShaderConvertColorParams

Source/DX9VideoProcessor.cpp:854–910

}

void CDX9VideoProcessor::SetShaderConvertColorParams()
{
	mp_cmat cmatrix;

	if (m_Dovi.bValid) {
		const float brightness = DXVA2FixedToFloat(m_DXVA2ProcAmpValues.Brightness) / 255;
		const float contrast = DXVA2FixedToFloat(m_DXVA2ProcAmpValues.Contrast);

		for (int i = 0; i < 3; i++) {
			cmatrix.m[i][0] = (float)m_Dovi.msd.ColorMetadata.ycc_to_rgb_matrix[i * 3 + 0] * contrast;
			cmatrix.m[i][1] = (float)m_Dovi.msd.ColorMetadata.ycc_to_rgb_matrix[i * 3 + 1] * contrast;
			cmatrix.m[i][2] = (float)m_Dovi.msd.ColorMetadata.ycc_to_rgb_matrix[i * 3 + 2] * contrast;
		}

		for (int i = 0; i < 3; i++) {
			cmatrix.c[i] = brightness;
			for (int j = 0; j < 3; j++) {
				cmatrix.c[i] -= cmatrix.m[i][j] * m_Dovi.msd.ColorMetadata.ycc_to_rgb_offset[j];
			}
		}

		m_PSConvColorData.bEnable = true;
	}
	else {
		mp_csp_params csp_params;
		set_colorspace(m_srcExFmt, csp_params.color);
		csp_params.brightness = DXVA2FixedToFloat(m_DXVA2ProcAmpValues.Brightness) / 255;
		csp_params.contrast = DXVA2FixedToFloat(m_DXVA2ProcAmpValues.Contrast);
		csp_params.hue = DXVA2FixedToFloat(m_DXVA2ProcAmpValues.Hue) / 180 * acos(-1);
		csp_params.saturation = DXVA2FixedToFloat(m_DXVA2ProcAmpValues.Saturation);
		csp_params.gray = m_srcParams.CSType == CS_GRAY;

		csp_params.input_bits = csp_params.texture_bits = m_srcParams.CDepth;

		mp_get_csp_matrix(&csp_params, &cmatrix);

		m_PSConvColorData.bEnable =
			m_srcParams.CSType == CS_YUV ||
			m_srcParams.cformat == CF_GBRP8 || m_srcParams.cformat == CF_GBRP10 || m_srcParams.cformat == CF_GBRP16 ||
			fabs(csp_params.brightness) > 1e-4f || fabs(csp_params.contrast - 1.0f) > 1e-4f;
	}

	m_PSConvColorData.Constants = {
		{cmatrix.m[0][0], cmatrix.m[0][1], cmatrix.m[0][2], 0},
		{cmatrix.m[1][0], cmatrix.m[1][1], cmatrix.m[1][2], 0},
		{cmatrix.m[2][0], cmatrix.m[2][1], cmatrix.m[2][2], 0},
		{cmatrix.c[0],    cmatrix.c[1],    cmatrix.c[2],    0},
	};

	auto& cbuffer = m_PSConvColorData.Constants;

	if (m_srcParams.cformat == CF_GBRP8 || m_srcParams.cformat == CF_GBRP10 || m_srcParams.cformat == CF_GBRP16) {
		std::swap(cbuffer.cm_r.x, cbuffer.cm_r.y); std::swap(cbuffer.cm_r.y, cbuffer.cm_r.z);
		std::swap(cbuffer.cm_g.x, cbuffer.cm_g.y); std::swap(cbuffer.cm_g.y, cbuffer.cm_g.z);
		std::swap(cbuffer.cm_b.x, cbuffer.cm_b.y); std::swap(cbuffer.cm_b.y, cbuffer.cm_b.z);
	}
}