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// Copyright 2021 Dolphin Emulator Project |
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// Licensed under GPLv2+ |
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// Refer to the license.txt file included. |
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#include "VideoCommon/TextureInfo.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/SamplerCommon.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 FourTexUnits& tex = bpmem.tex[stage >> 2]; |
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const u32 id = stage & 3; |
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const auto texture_format = tex.texImage0[id].format; |
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const auto tlut_format = tex.texTlut[id].tlut_format; |
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const auto width = tex.texImage0[id].width + 1; |
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const auto height = tex.texImage0[id].height + 1; |
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const u32 address = (tex.texImage3[id].image_base /* & 0x1FFFFF*/) << 5; |
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const u32 tlutaddr = tex.texTlut[id].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 = SamplerCommon::AreBpTexMode0MipmapsEnabled(tex.texMode0[id]); |
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if (has_mipmaps) |
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{ |
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mip_count = (tex.texMode1[id].max_lod + 0xf) / 0x10; |
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} |
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const bool from_tmem = tex.texImage1[id].cache_manually_managed != 0; |
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const u32 tmem_address_even = from_tmem ? tex.texImage1[id].tmem_even * TMEM_LINE_SIZE : 0; |
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const u32 tmem_address_odd = from_tmem ? tex.texImage2[id].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_texture_format(texture_format), |
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m_tlut_format(tlut_format), m_raw_width(width), m_raw_height(height), m_from_tmem(from_tmem), |
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m_tmem_odd(tmem_odd) |
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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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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 - TODO: Loading mipmaps from tmem is untested! |
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const u8* src_data = m_ptr + 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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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{}{}_{:016x}", format_prefix, m_raw_width, m_raw_height, |
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m_mip_levels.empty() ? "" : "_m", tex_hash); |
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result.tlut_name = tlut_size ? fmt::format("_{:016x}", tlut_hash) : ""; |
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result.format_name = fmt::format("_{}", 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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// load mips - TODO: Loading mipmaps from tmem is untested! |
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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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} |