316 lines
8.1 KiB
C++
316 lines
8.1 KiB
C++
// Copyright 2021 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "VideoCommon/TextureInfo.h"
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#include <fmt/format.h>
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#include <xxhash.h>
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#include "Common/Align.h"
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#include "Core/HW/Memmap.h"
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#include "VideoCommon/BPMemory.h"
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#include "VideoCommon/TextureDecoder.h"
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TextureInfo TextureInfo::FromStage(u32 stage)
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{
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const auto tex = bpmem.tex.GetUnit(stage);
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const auto texture_format = tex.texImage0.format;
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const auto tlut_format = tex.texTlut.tlut_format;
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const auto width = tex.texImage0.width + 1;
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const auto height = tex.texImage0.height + 1;
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const u32 address = (tex.texImage3.image_base /* & 0x1FFFFF*/) << 5;
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const u32 tlutaddr = tex.texTlut.tmem_offset << 9;
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const u8* tlut_ptr = &texMem[tlutaddr];
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std::optional<u32> mip_count;
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const bool has_mipmaps = tex.texMode0.mipmap_filter != MipMode::None;
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if (has_mipmaps)
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{
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mip_count = (tex.texMode1.max_lod + 0xf) / 0x10;
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}
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const bool from_tmem = tex.texImage1.cache_manually_managed != 0;
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const u32 tmem_address_even = from_tmem ? tex.texImage1.tmem_even * TMEM_LINE_SIZE : 0;
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const u32 tmem_address_odd = from_tmem ? tex.texImage2.tmem_odd * TMEM_LINE_SIZE : 0;
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if (from_tmem)
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{
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return TextureInfo(&texMem[tmem_address_even], tlut_ptr, address, texture_format, tlut_format,
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width, height, true, &texMem[tmem_address_odd], &texMem[tmem_address_even],
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mip_count);
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}
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return TextureInfo(Memory::GetPointer(address), tlut_ptr, address, texture_format, tlut_format,
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width, height, false, nullptr, nullptr, mip_count);
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}
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TextureInfo::TextureInfo(const u8* ptr, const u8* tlut_ptr, u32 address,
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TextureFormat texture_format, TLUTFormat tlut_format, u32 width,
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u32 height, bool from_tmem, const u8* tmem_odd, const u8* tmem_even,
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std::optional<u32> mip_count)
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: m_ptr(ptr), m_tlut_ptr(tlut_ptr), m_address(address), m_from_tmem(from_tmem),
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m_tmem_odd(tmem_odd), m_texture_format(texture_format), m_tlut_format(tlut_format),
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m_raw_width(width), m_raw_height(height)
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{
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const bool is_palette_texture = IsColorIndexed(m_texture_format);
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if (is_palette_texture)
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m_palette_size = TexDecoder_GetPaletteSize(m_texture_format);
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// TexelSizeInNibbles(format) * width * height / 16;
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m_block_width = TexDecoder_GetBlockWidthInTexels(m_texture_format);
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m_block_height = TexDecoder_GetBlockHeightInTexels(m_texture_format);
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m_expanded_width = Common::AlignUp(m_raw_width, m_block_width);
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m_expanded_height = Common::AlignUp(m_raw_height, m_block_height);
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m_texture_size =
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TexDecoder_GetTextureSizeInBytes(m_expanded_width, m_expanded_height, m_texture_format);
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if (mip_count)
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{
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m_mipmaps_enabled = true;
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const u32 raw_mip_count = *mip_count;
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// GPUs don't like when the specified mipmap count would require more than one 1x1-sized LOD in
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// the mipmap chain
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// e.g. 64x64 with 7 LODs would have the mipmap chain 64x64,32x32,16x16,8x8,4x4,2x2,1x1,0x0, so
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// we limit the mipmap count to 6 there
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const u32 limited_mip_count =
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std::min<u32>(IntLog2(std::max(width, height)) + 1, raw_mip_count + 1) - 1;
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// load mips
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const u8* src_data = m_ptr + GetTextureSize();
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if (tmem_even)
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tmem_even += GetTextureSize();
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for (u32 i = 0; i < limited_mip_count; i++)
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{
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MipLevel mip_level(i + 1, *this, m_from_tmem, src_data, tmem_even, tmem_odd);
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m_mip_levels.push_back(std::move(mip_level));
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}
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}
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}
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std::string TextureInfo::NameDetails::GetFullName() const
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{
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return fmt::format("{}_{}{}_{}", base_name, texture_name, tlut_name, format_name);
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}
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TextureInfo::NameDetails TextureInfo::CalculateTextureName()
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{
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if (!m_ptr)
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return NameDetails{};
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const u8* tlut = m_tlut_ptr;
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size_t tlut_size = m_palette_size ? *m_palette_size : 0;
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// checking for min/max on paletted textures
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u32 min = 0xffff;
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u32 max = 0;
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switch (tlut_size)
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{
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case 0:
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break;
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case 16 * 2:
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for (size_t i = 0; i < m_texture_size; i++)
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{
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const u32 low_nibble = m_ptr[i] & 0xf;
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const u32 high_nibble = m_ptr[i] >> 4;
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min = std::min({min, low_nibble, high_nibble});
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max = std::max({max, low_nibble, high_nibble});
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}
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break;
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case 256 * 2:
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{
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for (size_t i = 0; i < m_texture_size; i++)
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{
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const u32 texture_byte = m_ptr[i];
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min = std::min(min, texture_byte);
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max = std::max(max, texture_byte);
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}
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break;
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}
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case 16384 * 2:
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for (size_t i = 0; i < m_texture_size; i += sizeof(u16))
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{
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const u32 texture_halfword = Common::swap16(m_ptr[i]) & 0x3fff;
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min = std::min(min, texture_halfword);
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max = std::max(max, texture_halfword);
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}
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break;
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}
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if (tlut_size > 0)
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{
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tlut_size = 2 * (max + 1 - min);
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tlut += 2 * min;
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}
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const u64 tex_hash = XXH64(m_ptr, m_texture_size, 0);
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const u64 tlut_hash = tlut_size ? XXH64(tlut, tlut_size, 0) : 0;
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NameDetails result;
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result.base_name = fmt::format("{}{}x{}{}", format_prefix, m_raw_width, m_raw_height,
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m_mipmaps_enabled ? "_m" : "");
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result.texture_name = fmt::format("{:016x}", tex_hash);
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result.tlut_name = tlut_size ? fmt::format("_{:016x}", tlut_hash) : "";
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result.format_name = fmt::to_string(static_cast<int>(m_texture_format));
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return result;
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}
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const u8* TextureInfo::GetData() const
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{
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return m_ptr;
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}
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const u8* TextureInfo::GetTlutAddress() const
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{
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return m_tlut_ptr;
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}
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u32 TextureInfo::GetRawAddress() const
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{
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return m_address;
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}
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bool TextureInfo::IsFromTmem() const
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{
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return m_from_tmem;
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}
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const u8* TextureInfo::GetTmemOddAddress() const
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{
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return m_tmem_odd;
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}
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TextureFormat TextureInfo::GetTextureFormat() const
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{
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return m_texture_format;
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}
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TLUTFormat TextureInfo::GetTlutFormat() const
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{
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return m_tlut_format;
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}
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std::optional<u32> TextureInfo::GetPaletteSize() const
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{
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return m_palette_size;
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}
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u32 TextureInfo::GetTextureSize() const
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{
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return m_texture_size;
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}
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u32 TextureInfo::GetBlockWidth() const
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{
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return m_block_width;
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}
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u32 TextureInfo::GetBlockHeight() const
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{
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return m_block_height;
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}
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u32 TextureInfo::GetExpandedWidth() const
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{
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return m_expanded_width;
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}
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u32 TextureInfo::GetExpandedHeight() const
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{
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return m_expanded_height;
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}
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u32 TextureInfo::GetRawWidth() const
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{
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return m_raw_width;
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}
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u32 TextureInfo::GetRawHeight() const
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{
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return m_raw_height;
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}
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bool TextureInfo::HasMipMaps() const
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{
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return !m_mip_levels.empty();
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}
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u32 TextureInfo::GetLevelCount() const
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{
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return static_cast<u32>(m_mip_levels.size()) + 1;
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}
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const TextureInfo::MipLevel* TextureInfo::GetMipMapLevel(u32 level) const
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{
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if (level < m_mip_levels.size())
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return &m_mip_levels[level];
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return nullptr;
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}
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TextureInfo::MipLevel::MipLevel(u32 level, const TextureInfo& parent, bool from_tmem,
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const u8*& src_data, const u8*& ptr_even, const u8*& ptr_odd)
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{
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m_raw_width = std::max(parent.GetRawWidth() >> level, 1u);
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m_raw_height = std::max(parent.GetRawHeight() >> level, 1u);
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m_expanded_width = Common::AlignUp(m_raw_width, parent.GetBlockWidth());
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m_expanded_height = Common::AlignUp(m_raw_height, parent.GetBlockHeight());
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m_texture_size = TexDecoder_GetTextureSizeInBytes(m_expanded_width, m_expanded_height,
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parent.GetTextureFormat());
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const u8*& ptr = from_tmem ? ((level % 2) ? ptr_odd : ptr_even) : src_data;
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m_ptr = ptr;
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ptr += m_texture_size;
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}
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u32 TextureInfo::GetFullLevelSize() const
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{
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u32 all_mips_size = 0;
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for (const auto& mip_map : m_mip_levels)
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{
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all_mips_size += mip_map.GetTextureSize();
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}
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return m_texture_size + all_mips_size;
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}
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const u8* TextureInfo::MipLevel::GetData() const
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{
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return m_ptr;
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}
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u32 TextureInfo::MipLevel::GetTextureSize() const
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{
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return m_texture_size;
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}
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u32 TextureInfo::MipLevel::GetExpandedWidth() const
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{
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return m_expanded_width;
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}
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u32 TextureInfo::MipLevel::GetExpandedHeight() const
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{
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return m_expanded_height;
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}
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u32 TextureInfo::MipLevel::GetRawWidth() const
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{
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return m_raw_width;
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}
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u32 TextureInfo::MipLevel::GetRawHeight() const
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{
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return m_raw_height;
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}
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