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authorJames Rowe <jroweboy@gmail.com>2018-01-12 04:07:44 +0100
committerJames Rowe <jroweboy@gmail.com>2018-01-13 03:11:03 +0100
commit1d28b2e142f845773e2b90e267d9632e196a99b9 (patch)
tree027a3586a0fc927731afb3711c328c6dafc8551f /src/video_core/texture
parentMassive removal of unused modules (diff)
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Diffstat (limited to 'src/video_core/texture')
-rw-r--r--src/video_core/texture/etc1.cpp122
-rw-r--r--src/video_core/texture/etc1.h16
-rw-r--r--src/video_core/texture/texture_decode.cpp227
-rw-r--r--src/video_core/texture/texture_decode.h60
4 files changed, 0 insertions, 425 deletions
diff --git a/src/video_core/texture/etc1.cpp b/src/video_core/texture/etc1.cpp
deleted file mode 100644
index 43f7f56db..000000000
--- a/src/video_core/texture/etc1.cpp
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright 2017 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <array>
-#include "common/bit_field.h"
-#include "common/color.h"
-#include "common/common_types.h"
-#include "common/math_util.h"
-#include "common/vector_math.h"
-#include "video_core/texture/etc1.h"
-
-namespace Pica {
-namespace Texture {
-
-namespace {
-
-constexpr std::array<std::array<u8, 2>, 8> etc1_modifier_table = {{
- {2, 8}, {5, 17}, {9, 29}, {13, 42}, {18, 60}, {24, 80}, {33, 106}, {47, 183},
-}};
-
-union ETC1Tile {
- u64 raw;
-
- // Each of these two is a collection of 16 bits (one per lookup value)
- BitField<0, 16, u64> table_subindexes;
- BitField<16, 16, u64> negation_flags;
-
- unsigned GetTableSubIndex(unsigned index) const {
- return (table_subindexes >> index) & 1;
- }
-
- bool GetNegationFlag(unsigned index) const {
- return ((negation_flags >> index) & 1) == 1;
- }
-
- BitField<32, 1, u64> flip;
- BitField<33, 1, u64> differential_mode;
-
- BitField<34, 3, u64> table_index_2;
- BitField<37, 3, u64> table_index_1;
-
- union {
- // delta value + base value
- BitField<40, 3, s64> db;
- BitField<43, 5, u64> b;
-
- BitField<48, 3, s64> dg;
- BitField<51, 5, u64> g;
-
- BitField<56, 3, s64> dr;
- BitField<59, 5, u64> r;
- } differential;
-
- union {
- BitField<40, 4, u64> b2;
- BitField<44, 4, u64> b1;
-
- BitField<48, 4, u64> g2;
- BitField<52, 4, u64> g1;
-
- BitField<56, 4, u64> r2;
- BitField<60, 4, u64> r1;
- } separate;
-
- const Math::Vec3<u8> GetRGB(unsigned int x, unsigned int y) const {
- int texel = 4 * x + y;
-
- if (flip)
- std::swap(x, y);
-
- // Lookup base value
- Math::Vec3<int> ret;
- if (differential_mode) {
- ret.r() = static_cast<int>(differential.r);
- ret.g() = static_cast<int>(differential.g);
- ret.b() = static_cast<int>(differential.b);
- if (x >= 2) {
- ret.r() += static_cast<int>(differential.dr);
- ret.g() += static_cast<int>(differential.dg);
- ret.b() += static_cast<int>(differential.db);
- }
- ret.r() = Color::Convert5To8(ret.r());
- ret.g() = Color::Convert5To8(ret.g());
- ret.b() = Color::Convert5To8(ret.b());
- } else {
- if (x < 2) {
- ret.r() = Color::Convert4To8(static_cast<u8>(separate.r1));
- ret.g() = Color::Convert4To8(static_cast<u8>(separate.g1));
- ret.b() = Color::Convert4To8(static_cast<u8>(separate.b1));
- } else {
- ret.r() = Color::Convert4To8(static_cast<u8>(separate.r2));
- ret.g() = Color::Convert4To8(static_cast<u8>(separate.g2));
- ret.b() = Color::Convert4To8(static_cast<u8>(separate.b2));
- }
- }
-
- // Add modifier
- unsigned table_index =
- static_cast<int>((x < 2) ? table_index_1.Value() : table_index_2.Value());
-
- int modifier = etc1_modifier_table[table_index][GetTableSubIndex(texel)];
- if (GetNegationFlag(texel))
- modifier *= -1;
-
- ret.r() = MathUtil::Clamp(ret.r() + modifier, 0, 255);
- ret.g() = MathUtil::Clamp(ret.g() + modifier, 0, 255);
- ret.b() = MathUtil::Clamp(ret.b() + modifier, 0, 255);
-
- return ret.Cast<u8>();
- }
-};
-
-} // anonymous namespace
-
-Math::Vec3<u8> SampleETC1Subtile(u64 value, unsigned int x, unsigned int y) {
- ETC1Tile tile{value};
- return tile.GetRGB(x, y);
-}
-
-} // namespace Texture
-} // namespace Pica
diff --git a/src/video_core/texture/etc1.h b/src/video_core/texture/etc1.h
deleted file mode 100644
index e188b19df..000000000
--- a/src/video_core/texture/etc1.h
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2017 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include "common/common_types.h"
-#include "common/vector_math.h"
-
-namespace Pica {
-namespace Texture {
-
-Math::Vec3<u8> SampleETC1Subtile(u64 value, unsigned int x, unsigned int y);
-
-} // namespace Texture
-} // namespace Pica
diff --git a/src/video_core/texture/texture_decode.cpp b/src/video_core/texture/texture_decode.cpp
deleted file mode 100644
index 0818d652c..000000000
--- a/src/video_core/texture/texture_decode.cpp
+++ /dev/null
@@ -1,227 +0,0 @@
-// Copyright 2017 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include "common/assert.h"
-#include "common/color.h"
-#include "common/logging/log.h"
-#include "common/math_util.h"
-#include "common/swap.h"
-#include "common/vector_math.h"
-#include "video_core/regs_texturing.h"
-#include "video_core/texture/etc1.h"
-#include "video_core/texture/texture_decode.h"
-#include "video_core/utils.h"
-
-using TextureFormat = Pica::TexturingRegs::TextureFormat;
-
-namespace Pica {
-namespace Texture {
-
-constexpr size_t TILE_SIZE = 8 * 8;
-constexpr size_t ETC1_SUBTILES = 2 * 2;
-
-size_t CalculateTileSize(TextureFormat format) {
- switch (format) {
- case TextureFormat::RGBA8:
- return 4 * TILE_SIZE;
-
- case TextureFormat::RGB8:
- return 3 * TILE_SIZE;
-
- case TextureFormat::RGB5A1:
- case TextureFormat::RGB565:
- case TextureFormat::RGBA4:
- case TextureFormat::IA8:
- case TextureFormat::RG8:
- return 2 * TILE_SIZE;
-
- case TextureFormat::I8:
- case TextureFormat::A8:
- case TextureFormat::IA4:
- return 1 * TILE_SIZE;
-
- case TextureFormat::I4:
- case TextureFormat::A4:
- return TILE_SIZE / 2;
-
- case TextureFormat::ETC1:
- return ETC1_SUBTILES * 8;
-
- case TextureFormat::ETC1A4:
- return ETC1_SUBTILES * 16;
-
- default: // placeholder for yet unknown formats
- UNIMPLEMENTED();
- return 0;
- }
-}
-
-Math::Vec4<u8> LookupTexture(const u8* source, unsigned int x, unsigned int y,
- const TextureInfo& info, bool disable_alpha) {
- // Coordinate in tiles
- const unsigned int coarse_x = x / 8;
- const unsigned int coarse_y = y / 8;
-
- // Coordinate inside the tile
- const unsigned int fine_x = x % 8;
- const unsigned int fine_y = y % 8;
-
- const u8* line = source + coarse_y * info.stride;
- const u8* tile = line + coarse_x * CalculateTileSize(info.format);
- return LookupTexelInTile(tile, fine_x, fine_y, info, disable_alpha);
-}
-
-Math::Vec4<u8> LookupTexelInTile(const u8* source, unsigned int x, unsigned int y,
- const TextureInfo& info, bool disable_alpha) {
- DEBUG_ASSERT(x < 8);
- DEBUG_ASSERT(y < 8);
-
- using VideoCore::MortonInterleave;
-
- switch (info.format) {
- case TextureFormat::RGBA8: {
- auto res = Color::DecodeRGBA8(source + MortonInterleave(x, y) * 4);
- return {res.r(), res.g(), res.b(), static_cast<u8>(disable_alpha ? 255 : res.a())};
- }
-
- case TextureFormat::RGB8: {
- auto res = Color::DecodeRGB8(source + MortonInterleave(x, y) * 3);
- return {res.r(), res.g(), res.b(), 255};
- }
-
- case TextureFormat::RGB5A1: {
- auto res = Color::DecodeRGB5A1(source + MortonInterleave(x, y) * 2);
- return {res.r(), res.g(), res.b(), static_cast<u8>(disable_alpha ? 255 : res.a())};
- }
-
- case TextureFormat::RGB565: {
- auto res = Color::DecodeRGB565(source + MortonInterleave(x, y) * 2);
- return {res.r(), res.g(), res.b(), 255};
- }
-
- case TextureFormat::RGBA4: {
- auto res = Color::DecodeRGBA4(source + MortonInterleave(x, y) * 2);
- return {res.r(), res.g(), res.b(), static_cast<u8>(disable_alpha ? 255 : res.a())};
- }
-
- case TextureFormat::IA8: {
- const u8* source_ptr = source + MortonInterleave(x, y) * 2;
-
- if (disable_alpha) {
- // Show intensity as red, alpha as green
- return {source_ptr[1], source_ptr[0], 0, 255};
- } else {
- return {source_ptr[1], source_ptr[1], source_ptr[1], source_ptr[0]};
- }
- }
-
- case TextureFormat::RG8: {
- auto res = Color::DecodeRG8(source + MortonInterleave(x, y) * 2);
- return {res.r(), res.g(), 0, 255};
- }
-
- case TextureFormat::I8: {
- const u8* source_ptr = source + MortonInterleave(x, y);
- return {*source_ptr, *source_ptr, *source_ptr, 255};
- }
-
- case TextureFormat::A8: {
- const u8* source_ptr = source + MortonInterleave(x, y);
-
- if (disable_alpha) {
- return {*source_ptr, *source_ptr, *source_ptr, 255};
- } else {
- return {0, 0, 0, *source_ptr};
- }
- }
-
- case TextureFormat::IA4: {
- const u8* source_ptr = source + MortonInterleave(x, y);
-
- u8 i = Color::Convert4To8(((*source_ptr) & 0xF0) >> 4);
- u8 a = Color::Convert4To8((*source_ptr) & 0xF);
-
- if (disable_alpha) {
- // Show intensity as red, alpha as green
- return {i, a, 0, 255};
- } else {
- return {i, i, i, a};
- }
- }
-
- case TextureFormat::I4: {
- u32 morton_offset = MortonInterleave(x, y);
- const u8* source_ptr = source + morton_offset / 2;
-
- u8 i = (morton_offset % 2) ? ((*source_ptr & 0xF0) >> 4) : (*source_ptr & 0xF);
- i = Color::Convert4To8(i);
-
- return {i, i, i, 255};
- }
-
- case TextureFormat::A4: {
- u32 morton_offset = MortonInterleave(x, y);
- const u8* source_ptr = source + morton_offset / 2;
-
- u8 a = (morton_offset % 2) ? ((*source_ptr & 0xF0) >> 4) : (*source_ptr & 0xF);
- a = Color::Convert4To8(a);
-
- if (disable_alpha) {
- return {a, a, a, 255};
- } else {
- return {0, 0, 0, a};
- }
- }
-
- case TextureFormat::ETC1:
- case TextureFormat::ETC1A4: {
- bool has_alpha = (info.format == TextureFormat::ETC1A4);
- size_t subtile_size = has_alpha ? 16 : 8;
-
- // ETC1 further subdivides each 8x8 tile into four 4x4 subtiles
- constexpr unsigned int subtile_width = 4;
- constexpr unsigned int subtile_height = 4;
-
- unsigned int subtile_index = (x / subtile_width) + 2 * (y / subtile_height);
- x %= subtile_width;
- y %= subtile_height;
-
- const u8* subtile_ptr = source + subtile_index * subtile_size;
-
- u8 alpha = 255;
- if (has_alpha) {
- u64_le packed_alpha;
- memcpy(&packed_alpha, subtile_ptr, sizeof(u64));
- subtile_ptr += sizeof(u64);
-
- alpha = Color::Convert4To8((packed_alpha >> (4 * (x * subtile_width + y))) & 0xF);
- }
-
- u64_le subtile_data;
- memcpy(&subtile_data, subtile_ptr, sizeof(u64));
-
- return Math::MakeVec(SampleETC1Subtile(subtile_data, x, y),
- disable_alpha ? (u8)255 : alpha);
- }
-
- default:
- LOG_ERROR(HW_GPU, "Unknown texture format: %x", (u32)info.format);
- DEBUG_ASSERT(false);
- return {};
- }
-}
-
-TextureInfo TextureInfo::FromPicaRegister(const TexturingRegs::TextureConfig& config,
- const TexturingRegs::TextureFormat& format) {
- TextureInfo info;
- info.physical_address = config.GetPhysicalAddress();
- info.width = config.width;
- info.height = config.height;
- info.format = format;
- info.SetDefaultStride();
- return info;
-}
-
-} // namespace Texture
-} // namespace Pica
diff --git a/src/video_core/texture/texture_decode.h b/src/video_core/texture/texture_decode.h
deleted file mode 100644
index 8507cfeb8..000000000
--- a/src/video_core/texture/texture_decode.h
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright 2017 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include "common/common_types.h"
-#include "common/vector_math.h"
-#include "video_core/regs_texturing.h"
-
-namespace Pica {
-namespace Texture {
-
-/// Returns the byte size of a 8*8 tile of the specified texture format.
-size_t CalculateTileSize(TexturingRegs::TextureFormat format);
-
-struct TextureInfo {
- PAddr physical_address;
- unsigned int width;
- unsigned int height;
- ptrdiff_t stride;
- TexturingRegs::TextureFormat format;
-
- static TextureInfo FromPicaRegister(const TexturingRegs::TextureConfig& config,
- const TexturingRegs::TextureFormat& format);
-
- /// Calculates stride from format and width, assuming that the entire texture is contiguous.
- void SetDefaultStride() {
- stride = CalculateTileSize(format) * (width / 8);
- }
-};
-
-/**
- * Lookup texel located at the given coordinates and return an RGBA vector of its color.
- * @param source Source pointer to read data from
- * @param x,y Texture coordinates to read from
- * @param info TextureInfo object describing the texture setup
- * @param disable_alpha This is used for debug widgets which use this method to display textures
- * without providing a good way to visualize alpha by themselves. If true, this will return 255 for
- * the alpha component, and either drop the information entirely or store it in an "unused" color
- * channel.
- * @todo Eventually we should get rid of the disable_alpha parameter.
- */
-Math::Vec4<u8> LookupTexture(const u8* source, unsigned int x, unsigned int y,
- const TextureInfo& info, bool disable_alpha = false);
-
-/**
- * Looks up a texel from a single 8x8 texture tile.
- *
- * @param source Pointer to the beginning of the tile.
- * @param x, y In-tile coordinates to read from. Must be < 8.
- * @param info TextureInfo describing the texture format.
- * @param disable_alpha Used for debugging. Sets the result alpha to 255 and either discards the
- * real alpha or inserts it in an otherwise unused channel.
- */
-Math::Vec4<u8> LookupTexelInTile(const u8* source, unsigned int x, unsigned int y,
- const TextureInfo& info, bool disable_alpha);
-
-} // namespace Texture
-} // namespace Pica