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// Copyright 2011 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include "VideoCommon/BPMemory.h"
#include "VideoCommon/VideoCommon.h"
namespace DX11
{
// 4-bit format: 8x8 texels / cache line
// 8-bit format: 8x4 texels / cache line
// 16-bit format: 4x4 texels / cache line
// 32-bit format: 4x4 texels / 2 cache lines
// Compressed format: 8x8 texels / cache line
// Document EFB encoding formats here with examples of where they are used.
// Format: 0 - R4
// Used in The Legend of Zelda: The Wind Waker for character shadows (srcFormat 1,
// isIntensity 1, scaleByHalf 1).
// Format: 1 - R8
// FIXME: Unseen. May or may not be a duplicate of format 8.
// Format: 2 - A4 R4
// FIXME: Unseen.
// Format: 3 - A8 R8
// FIXME: Unseen.
// Format: 4 - R5 G6 B5
// Used in Wind Waker for most render-to-texture effects like heat shimmer and
// depth-of-field.
// Format: 5 - 1 R5 G5 B5 or 0 A3 R4 G4 B4
// Used in Twilight Princess for character shadows.
// Format: 6 - A8 R8 A8 R8 | G8 B8 G8 B8
// Used in Twilight Princess for bloom effect.
// Format: 7 - A8
// Used in Metroid Prime 2 for the scan visor.
// Format: 8 - R8
// Used in Twilight Princess for the map.
// Format: 9 - G8
// FIXME: Unseen.
// Format: A - B8
// Used in Metroid Prime 2 for the scan visor.
// Format: B - G8 R8
// Used in Wind Waker for depth-of-field. Usually used with srcFormat 3 to
// render depth textures. The bytes are swapped, so games have to correct it
// in RAM before using it as a texture.
// Format: C - B8 G8
// FIXME: Unseen.
const unsigned int BLOCK_WIDTHS[16] = {
8, // R4
8, // R8 (FIXME: duplicate of R8 below?)
8, // A4 R4
4, // A8 R8
4, // R5 G6 B5
4, // 1 R5 G5 B5 or 0 A3 R4 G4 B4
4, // A8 R8 A8 R8 | G8 B8 G8 B8 (two cache lines)
8, // A8
8, // R8 (FIXME: duplicate of R8 above?)
8, // G8
8, // B8
4, // G8 R8
4, // B8 G8
0, 0, 0 // Unknown formats
};
const unsigned int BLOCK_HEIGHTS[16] = {
8, // R4
4, // R8 (FIXME: duplicate of R8 below?)
4, // A4 R4
4, // A8 R8
4, // R5 G6 B5
4, // 1 R5 G5 B5 or 0 A3 R4 G4 B4
4, // A8 R8 A8 R8 | G8 B8 G8 B8 (two cache lines)
4, // A8
4, // R8 (FIXME: duplicate of R8 above?)
4, // G8
4, // B8
4, // G8 R8
4, // B8 G8
0, 0, 0 // Unknown formats
};
// Maximum number of bytes that can occur in a texture block-row generated by
// the encoder
static const UINT MAX_BYTES_PER_BLOCK_ROW = (EFB_WIDTH/4)*64;
// The maximum amount of data that the texture encoder can generate in one call
static const UINT MAX_BYTES_PER_ENCODE = MAX_BYTES_PER_BLOCK_ROW*(EFB_HEIGHT/4);
class TextureEncoder
{
public:
virtual ~TextureEncoder() { }
virtual void Init() = 0;
virtual void Shutdown() = 0;
// Returns size in bytes of encoded block of memory
virtual size_t Encode(u8* dst, unsigned int dstFormat,
PEControl::PixelFormat srcFormat, const EFBRectangle& srcRect,
bool isIntensity, bool scaleByHalf) = 0;
};
}
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