119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include "common/common_types.h"
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#include "core/hle/service/service.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Namespace Y2R_U
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namespace Y2R_U {
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enum class InputFormat : u8 {
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/// 8-bit input, with YUV components in separate planes and 4:2:2 subsampling.
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YUV422_Indiv8 = 0,
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/// 8-bit input, with YUV components in separate planes and 4:2:0 subsampling.
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YUV420_Indiv8 = 1,
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/// 16-bit input (only LSB used), with YUV components in separate planes and 4:2:2 subsampling.
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YUV422_Indiv16 = 2,
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/// 16-bit input (only LSB used), with YUV components in separate planes and 4:2:0 subsampling.
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YUV420_Indiv16 = 3,
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/// 8-bit input, with a single interleaved stream in YUYV format and 4:2:2 subsampling.
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YUYV422_Interleaved = 4,
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};
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enum class OutputFormat : u8 {
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RGBA8 = 0,
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RGB8 = 1,
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RGB5A1 = 2,
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RGB565 = 3,
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};
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enum class Rotation : u8 {
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None = 0,
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Clockwise_90 = 1,
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Clockwise_180 = 2,
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Clockwise_270 = 3,
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};
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enum class BlockAlignment : u8 {
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/// Image is output in linear format suitable for use as a framebuffer.
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Linear = 0,
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/// Image is output in tiled PICA format, suitable for use as a texture.
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Block8x8 = 1,
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};
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enum class StandardCoefficient : u8 {
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/// ITU Rec. BT.601 primaries, with PC ranges.
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ITU_Rec601 = 0,
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/// ITU Rec. BT.709 primaries, with PC ranges.
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ITU_Rec709 = 1,
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/// ITU Rec. BT.601 primaries, with TV ranges.
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ITU_Rec601_Scaling = 2,
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/// ITU Rec. BT.709 primaries, with TV ranges.
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ITU_Rec709_Scaling = 3,
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};
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/**
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* A set of coefficients configuring the RGB to YUV conversion. Coefficients 0-4 are unsigned 2.8
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* fixed pointer numbers representing entries on the conversion matrix, while coefficient 5-7 are
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* signed 11.5 fixed point numbers added as offsets to the RGB result.
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*
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* The overall conversion process formula is:
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* ```
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* R = trunc((c_0 * Y + c_1 * V) + c_5 + 0.75)
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* G = trunc((c_0 * Y - c_3 * U - c_2 * V) + c_6 + 0.75)
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* B = trunc((c_0 * Y + c_4 * U ) + c_7 + 0.75)
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* ```
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*/
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using CoefficientSet = std::array<s16, 8>;
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struct ConversionBuffer {
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/// Current reading/writing address of this buffer.
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VAddr address;
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/// Remaining amount of bytes to be DMAed, does not include the inter-trasfer gap.
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u32 image_size;
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/// Size of a single DMA transfer.
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u16 transfer_unit;
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/// Amount of bytes to be skipped between copying each `transfer_unit` bytes.
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u16 gap;
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};
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struct ConversionConfiguration {
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InputFormat input_format;
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OutputFormat output_format;
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Rotation rotation;
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BlockAlignment block_alignment;
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u16 input_line_width;
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u16 input_lines;
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CoefficientSet coefficients;
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u16 alpha;
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/// Input parameters for the Y (luma) plane
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ConversionBuffer src_Y, src_U, src_V, src_YUYV;
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/// Output parameters for the conversion results
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ConversionBuffer dst;
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ResultCode SetInputLineWidth(u16 width);
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ResultCode SetInputLines(u16 lines);
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ResultCode SetStandardCoefficient(StandardCoefficient standard_coefficient);
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};
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class Interface : public Service::Interface {
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public:
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Interface();
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std::string GetPortName() const override {
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return "y2r:u";
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}
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};
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} // namespace
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