add libacryl_plugin library support

Bug: 186836335
Change-Id: I14ebd21de7c14807c65ffe1e87b34657371efda6

2 files changed, 258 insertions, 0 deletions

diff --git a/libacryl_plugins/Android.bp b/libacryl_plugins/Android.bp
new file mode 100644
index 0000000..118163b
--- /dev/null
+++ b/libacryl_plugins/Android.bp
@@ -0,0 +1,21 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_google_graphics_gs201_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_google_graphics_gs201_license"],
+}
+
+cc_library {
+    name: "libacryl_hdr_plugin",
+    proprietary: true,
+    include_dirs: [
+        "hardware/google/graphics/gs201/include",
+        "hardware/google/graphics/common/include"
+    ],
+    srcs: ["libacryl_hdr_plugin.cpp"],
+    shared_libs: ["liblog", "android.hardware.graphics.common@1.2"],
+    header_libs: ["google_libacryl_hdrplugin_headers", "libsystem_headers"],
+    cflags: ["-Werror"],
+}
diff --git a/libacryl_plugins/libacryl_hdr_plugin.cpp b/libacryl_plugins/libacryl_hdr_plugin.cpp
new file mode 100644
index 0000000..0861c71
--- /dev/null
+++ b/libacryl_plugins/libacryl_hdr_plugin.cpp
@@ -0,0 +1,237 @@
+/*
+ *  libacryl_plugins/libacryl_hdr_plugin.cpp
+ *
+ *   Copyright 2020 Samsung Electronics Co., Ltd.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+#include <cassert>
+#include <array>
+
+#include <gs101/displaycolor/displaycolor_gs101.h>
+#include <hardware/exynos/g2d_hdr_plugin.h>
+
+#define HDR_BASE 0x3000
+#define HDR_SFR_LEN 0x800
+
+#define HDR_COM_CTRL 0x3004 // [0] HDR enable
+static const uint32_t VAL_HDR_CTRL_ENABLE = 1;
+
+#define HDR_MOD_CTRL_NUM  1   // [0] oetf enable, [1] eotf enable [2] gm enable [5] tm enable
+#define HDR_OETF_POSX_NUM 17  // two 16-bit from LSB
+#define HDR_OETF_POSY_NUM 17  // two 10-bit from LSB
+#define HDR_EOTF_POSX_NUM 65  // two 10-bit from LSB
+#define HDR_EOTF_POSY_NUM 129 // one 16-bit
+#define HDR_GM_COEF_NUM   9   // one 19-bit
+#define HDR_GM_OFF_NUM    3   // one 17-bit
+#define HDR_TM_COEF_NUM   1   // three 10-bit from LSB (R, G, B)
+#define HDR_TM_RNGX_NUM   1   // two 16-bit from LSB (min:max)
+#define HDR_TM_RNGY_NUM   1   // two 9-bit from LSB (min:max)
+#define HDR_TM_POSX_NUM   17  // two 16-bit from LSB
+#define HDR_TM_POSY_NUM   33  // one 27-bit from LSB
+
+#define HDR_MOD_CTRL_OFFSET  (0x8)
+static const uint32_t HDR_ENABLE_OETF = 1 << 0;
+static const uint32_t HDR_ENABLE_EOTF = 1 << 1;
+static const uint32_t HDR_ENABLE_GM   = 1 << 2;
+static const uint32_t HDR_ENABLE_DTM  = 1 << 5;
+
+#define HDR_OETF_POSX_OFFSET (HDR_MOD_CTRL_OFFSET  + 4 * HDR_MOD_CTRL_NUM )
+#define HDR_OETF_POSY_OFFSET (HDR_OETF_POSX_OFFSET + 4 * HDR_OETF_POSX_NUM)
+#define HDR_EOTF_POSX_OFFSET (HDR_OETF_POSY_OFFSET + 4 * HDR_OETF_POSY_NUM)
+#define HDR_EOTF_POSY_OFFSET (HDR_EOTF_POSX_OFFSET + 4 * HDR_EOTF_POSX_NUM)
+#define HDR_GM_COEF_OFFSET   (HDR_EOTF_POSY_OFFSET + 4 * HDR_EOTF_POSY_NUM)
+#define HDR_GM_OFF_OFFSET    (HDR_GM_COEF_OFFSET   + 4 * HDR_GM_COEF_NUM  )
+#define HDR_TM_COEF_OFFSET   (HDR_GM_OFF_OFFSET    + 4 * HDR_GM_OFF_NUM   )
+#define HDR_TM_RNGX_OFFSET   (HDR_TM_COEF_OFFSET   + 4 * HDR_TM_COEF_NUM  )
+#define HDR_TM_RNGY_OFFSET   (HDR_TM_RNGX_OFFSET   + 4 * HDR_TM_RNGX_NUM  )
+#define HDR_TM_POSX_OFFSET   (HDR_TM_RNGY_OFFSET   + 4 * HDR_TM_RNGY_NUM  )
+#define HDR_TM_POSY_OFFSET   (HDR_TM_POSX_OFFSET   + 4 * HDR_TM_POSX_NUM  )
+
+#define HDR_LAYER_BASE(layer) (HDR_BASE + HDR_SFR_LEN * (layer))
+
+#define HDR_MOD_CTRL(layer)  (HDR_LAYER_BASE(layer) + HDR_MOD_CTRL_OFFSET )
+#define HDR_OETF_POSX(layer) (HDR_LAYER_BASE(layer) + HDR_OETF_POSX_OFFSET)
+#define HDR_OETF_POSY(layer) (HDR_LAYER_BASE(layer) + HDR_OETF_POSY_OFFSET)
+#define HDR_EOTF_POSX(layer) (HDR_LAYER_BASE(layer) + HDR_EOTF_POSX_OFFSET)
+#define HDR_EOTF_POSY(layer) (HDR_LAYER_BASE(layer) + HDR_EOTF_POSY_OFFSET)
+#define HDR_GM_COEF(layer)   (HDR_LAYER_BASE(layer) + HDR_GM_COEF_OFFSET  )
+#define HDR_GM_OFF(layer)    (HDR_LAYER_BASE(layer) + HDR_GM_OFF_OFFSET   )
+#define HDR_TM_COEF(layer)   (HDR_LAYER_BASE(layer) + HDR_TM_COEF_OFFSET  )
+#define HDR_TM_RNGX(layer)   (HDR_LAYER_BASE(layer) + HDR_TM_RNGX_OFFSET  )
+#define HDR_TM_RNGY(layer)   (HDR_LAYER_BASE(layer) + HDR_TM_RNGY_OFFSET  )
+#define HDR_TM_POSX(layer)   (HDR_LAYER_BASE(layer) + HDR_TM_POSX_OFFSET  )
+#define HDR_TM_POSY(layer)   (HDR_LAYER_BASE(layer) + HDR_TM_POSY_OFFSET  )
+
+#define G2D_LAYER_HDRMODE(i) (0x290 + (i) * 0x100)
+
+#define MAX_LAYER_COUNT 4
+#define HDR_LAYER_SFR_COUNT (\
+      HDR_MOD_CTRL_NUM + HDR_OETF_POSX_NUM + HDR_OETF_POSY_NUM + \
+      HDR_EOTF_POSX_NUM + HDR_EOTF_POSY_NUM + HDR_GM_COEF_NUM + \
+      HDR_GM_OFF_NUM + HDR_TM_COEF_NUM + HDR_TM_RNGX_NUM + \
+      HDR_TM_RNGY_NUM + HDR_TM_POSX_NUM + HDR_TM_POSY_NUM\
+      )
+
+static const size_t NUM_HDR_COEFFICIENTS = HDR_LAYER_SFR_COUNT * MAX_LAYER_COUNT + 1; // HDR SFR COUNT x LAYER COUNT + COM_CTRL
+static const size_t NUM_HDR_MODE_REGS = MAX_LAYER_COUNT;
+
+class G2DHdrCommandWriter: public IG2DHdr10CommandWriter {
+    std::bitset<MAX_LAYER_COUNT> mLayerAlphaMap;
+    std::array<displaycolor::IDisplayColorGS101::IDpp *, MAX_LAYER_COUNT> mLayerData{};
+
+public:
+    struct CommandList {
+        std::array<g2d_reg, NUM_HDR_COEFFICIENTS> commands;     // (294 * 4 + 1) * 8 bytes
+        std::array<g2d_reg, NUM_HDR_MODE_REGS> layer_hdr_modes; // 4 * 8 bytes
+        g2d_commandlist cmdlist{};
+
+        CommandList() {
+            cmdlist.commands = commands.data();
+            cmdlist.layer_hdr_mode = layer_hdr_modes.data();
+        }
+
+        ~CommandList() { }
+
+        void reset() {
+            cmdlist.command_count = 0;
+            cmdlist.layer_count = 0;
+        }
+
+        g2d_commandlist *get() { return &cmdlist; }
+
+        uint32_t set_and_get_next_offset(uint32_t offset, uint32_t value) {
+            commands[cmdlist.command_count].offset = offset;
+            commands[cmdlist.command_count].value = value;
+            cmdlist.command_count++;
+            return offset + sizeof(value);
+        }
+
+        void updateLayer(std::size_t layer, bool alpha_premultiplied, uint32_t modectl) {
+            auto &hdr_mode = layer_hdr_modes[cmdlist.layer_count++];
+
+            hdr_mode.offset = G2D_LAYER_HDRMODE(layer);
+            hdr_mode.value = layer;
+            // The premultiplied alpha should be demultiplied before HDR conversion.
+            if (alpha_premultiplied)
+                hdr_mode.value |= G2D_LAYER_HDRMODE_DEMULT_ALPHA;
+
+            set_and_get_next_offset(HDR_MOD_CTRL(layer), modectl);
+        }
+
+        template <typename containerT>
+        void updateDouble(const containerT &container, uint32_t offset) {
+            for (std::size_t n = 0; n < container.size(); n += 2)
+                offset = set_and_get_next_offset(offset, container[n] | container[n + 1] << 16);
+            if ((container.size() % 2) == 1)
+                set_and_get_next_offset(offset, container.back());
+        }
+
+        template <typename containerT>
+        void updateSingle(const containerT &container, uint32_t offset) {
+            for (auto item : container)
+                offset = set_and_get_next_offset(offset, item);
+        }
+
+        void updateTmCoef(const displaycolor::IDisplayColorGS101::IDpp::DtmData::ConfigType &config, uint32_t offset) {
+            offset = set_and_get_next_offset(offset, config.coeff_r | (config.coeff_g << 10) | (config.coeff_b << 20));
+            offset = set_and_get_next_offset(offset, config.rng_x_min | (config.rng_x_max << 16));
+            set_and_get_next_offset(offset, config.rng_y_min | (config.rng_y_max << 16));
+        }
+
+        void updateHdr() {
+            if (cmdlist.command_count > 0)
+                set_and_get_next_offset(HDR_COM_CTRL, VAL_HDR_CTRL_ENABLE);
+        }
+    } mCmdList;
+
+    G2DHdrCommandWriter() { }
+    virtual ~G2DHdrCommandWriter() { }
+
+    virtual bool setLayerStaticMetadata(int __unused index, int __unused dataspace,
+                                unsigned int __unused min_luminance, unsigned int __unused max_luminance) override {
+        return true;
+    }
+
+    virtual bool setLayerImageInfo(int index, unsigned int __unused pixfmt, bool alpha_premult) override {
+        if (alpha_premult)
+            mLayerAlphaMap.set(index);
+        return true;
+    }
+
+    virtual bool setTargetInfo(int __unused dataspace, void * __unused data) override {
+        return true;
+    }
+
+    virtual bool setLayerOpaqueData(int index, void *data, size_t __unused len) override {
+        mLayerData[index] = reinterpret_cast<displaycolor::IDisplayColorGS101::IDpp *>(data);
+        return true;
+    }
+
+    virtual struct g2d_commandlist *getCommands() override {
+        mCmdList.reset();
+
+        unsigned int i = 0;
+        for (auto layer : mLayerData) {
+            if (layer) {
+                uint32_t modectl = 0;
+
+                if (layer->EotfLut().enable && layer->EotfLut().config != nullptr) {
+                    mCmdList.updateDouble(layer->EotfLut().config->tf_data.posx, HDR_EOTF_POSX(i));
+                    mCmdList.updateSingle(layer->EotfLut().config->tf_data.posy, HDR_EOTF_POSY(i));
+                    modectl |= HDR_ENABLE_EOTF;
+                }
+
+                if (layer->Gm().enable && layer->Gm().config != nullptr) {
+                    mCmdList.updateSingle(layer->Gm().config->matrix_data.coeffs, HDR_GM_COEF(i));
+                    mCmdList.updateSingle(layer->Gm().config->matrix_data.offsets, HDR_GM_OFF(i));
+                    modectl |= HDR_ENABLE_GM;
+                }
+
+                if (layer->Dtm().enable && layer->Dtm().config != nullptr) {
+                    mCmdList.updateTmCoef(*layer->Dtm().config, HDR_TM_COEF(i));
+                    mCmdList.updateDouble(layer->Dtm().config->tf_data.posx, HDR_TM_POSX(i));
+                    mCmdList.updateSingle(layer->Dtm().config->tf_data.posy, HDR_TM_POSY(i));
+                    modectl |= HDR_ENABLE_DTM;
+                }
+
+                if (layer->OetfLut().enable && layer->OetfLut().config != nullptr) {
+                    mCmdList.updateDouble(layer->OetfLut().config->tf_data.posx, HDR_OETF_POSX(i));
+                    mCmdList.updateDouble(layer->OetfLut().config->tf_data.posy, HDR_OETF_POSY(i));
+                    modectl |= HDR_ENABLE_OETF;
+                }
+
+                mCmdList.updateLayer(i, mLayerAlphaMap[0], modectl);
+            }
+
+            mLayerAlphaMap >>= 1;
+            i++;
+        }
+
+        mCmdList.updateHdr();
+
+        // initialize for the next layer metadata configuration
+        mLayerAlphaMap.reset();
+        mLayerData.fill(nullptr);
+
+        return mCmdList.get();
+    }
+
+    virtual void putCommands(struct g2d_commandlist __unused *commands) override {
+        assert(commands == &mCommandList);
+    }
+};
+
+IG2DHdr10CommandWriter *IG2DHdr10CommandWriter::createInstance() {
+    return new G2DHdrCommandWriter();
+}