From 1d28b2e142f845773e2b90e267d9632e196a99b9 Mon Sep 17 00:00:00 2001
From: James Rowe <jroweboy@gmail.com>
Date: Thu, 11 Jan 2018 20:07:44 -0700
Subject: Remove references to PICA and rasterizers in video_core

---
 src/video_core/texture/etc1.cpp | 122 ----------------------------------------
 1 file changed, 122 deletions(-)
 delete mode 100644 src/video_core/texture/etc1.cpp

(limited to 'src/video_core/texture/etc1.cpp')

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
-- 
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