mirror of https://github.com/AxioDL/metaforce.git
289 lines
9.3 KiB
C++
289 lines
9.3 KiB
C++
#include "shader.hpp"
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#include "../../gpu.hpp"
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#include "../common.hpp"
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#include <absl/container/flat_hash_map.h>
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#include <aurora/model.hpp>
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namespace aurora::gfx::model {
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static logvisor::Module Log("aurora::gfx::model");
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static const std::vector<zeus::CVector3f>* vtxData;
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static const std::vector<zeus::CVector3f>* nrmData;
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static const std::vector<Vec2<float>>* tex0TcData;
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static const std::vector<Vec2<float>>* tcData;
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static std::optional<Range> cachedVtxRange;
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static std::optional<Range> cachedNrmRange;
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static std::optional<Range> cachedPackedTcRange;
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static std::optional<Range> cachedTcRange;
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static inline void read_vert(ByteBuffer& out, const u8* data) noexcept {
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size_t offset = 0;
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for (const auto& type : gx::g_gxState.vtxDesc) {
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if (type == GX::INDEX8) {
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const auto v = static_cast<s16>(data[offset]); // expand to s16
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out.append(&v, 2);
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++offset;
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} else if (type == GX::INDEX16) {
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const s16 v = metaforce::SBig(*reinterpret_cast<const s16*>(data + offset));
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out.append(&v, 2);
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offset += 2;
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}
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}
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constexpr size_t align = 4; // Sint16x2
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if (offset % align != 0) {
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out.append_zeroes(align - (offset % align));
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}
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}
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static absl::flat_hash_map<XXH64_hash_t, std::pair<ByteBuffer, ByteBuffer>> sCachedDisplayLists;
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void queue_surface(const u8* dlStart, u32 dlSize) noexcept {
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const auto hash = xxh3_hash(dlStart, dlSize, 0);
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Range vertRange, idxRange;
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u32 numIndices = 0;
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auto it = sCachedDisplayLists.find(hash);
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if (it != sCachedDisplayLists.end()) {
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const auto& [verts, indices] = it->second;
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numIndices = indices.size() / 2;
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vertRange = push_verts(verts.data(), verts.size());
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idxRange = push_indices(indices.data(), indices.size());
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} else {
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ByteBuffer vtxBuf;
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ByteBuffer idxBuf;
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u8 inVtxSize = 0;
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u8 outVtxSize = 0;
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for (const auto& type : gx::g_gxState.vtxDesc) {
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if (type == GX::NONE || type == GX::DIRECT) {
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continue;
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}
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if (type == GX::INDEX8) {
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++inVtxSize;
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outVtxSize += 2;
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} else if (type == GX::INDEX16) {
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inVtxSize += 2;
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outVtxSize += 2;
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} else {
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Log.report(logvisor::Fatal, FMT_STRING("unexpected vtx type {}"), type);
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unreachable();
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}
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}
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outVtxSize = ALIGN(outVtxSize, 4);
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u16 vtxStart = 0;
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size_t offset = 0;
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while (offset < dlSize - 6) {
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const auto header = dlStart[offset];
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const auto primitive = static_cast<GX::Primitive>(header & 0xF8);
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const auto dlVtxCount = metaforce::SBig(*reinterpret_cast<const u16*>(dlStart + offset + 1));
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offset += 3;
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if (primitive == 0) {
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break;
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}
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if (primitive != GX::TRIANGLES && primitive != GX::TRIANGLESTRIP && primitive != GX::TRIANGLEFAN) {
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Log.report(logvisor::Fatal, FMT_STRING("queue_surface: unsupported primitive type {}"), primitive);
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unreachable();
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}
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vtxBuf.reserve_extra(dlVtxCount * outVtxSize);
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if (dlVtxCount > 3 && (primitive == GX::TRIANGLEFAN || primitive == GX::TRIANGLESTRIP)) {
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idxBuf.reserve_extra(((u32(dlVtxCount) - 3) * 3 + 3) * 2);
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} else {
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idxBuf.reserve_extra(dlVtxCount * 2);
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}
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u16 curVert = vtxStart;
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for (u16 v = 0; v < dlVtxCount; ++v) {
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read_vert(vtxBuf, dlStart + offset);
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offset += inVtxSize;
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if (primitive == GX::TRIANGLES || v < 3) {
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idxBuf.append(&curVert, 2);
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++numIndices;
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} else if (primitive == GX::TRIANGLEFAN) {
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const std::array<u16, 3> idxs{
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vtxStart,
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u16(curVert - 1),
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curVert,
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};
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idxBuf.append(idxs.data(), 6);
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numIndices += 3;
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} else if (primitive == GX::TRIANGLESTRIP) {
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if ((v & 1) == 0) {
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const std::array<u16, 3> idxs{
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u16(curVert - 2),
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u16(curVert - 1),
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curVert,
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};
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idxBuf.append(idxs.data(), 6);
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} else {
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const std::array<u16, 3> idxs{
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u16(curVert - 1),
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u16(curVert - 2),
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curVert,
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};
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idxBuf.append(idxs.data(), 6);
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}
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numIndices += 3;
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}
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++curVert;
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}
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vtxStart += dlVtxCount;
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}
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vertRange = push_verts(vtxBuf.data(), vtxBuf.size());
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idxRange = push_indices(idxBuf.data(), idxBuf.size());
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sCachedDisplayLists.try_emplace(hash, std::move(vtxBuf), std::move(idxBuf));
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}
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Range sVtxRange, sNrmRange, sTcRange, sPackedTcRange;
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if (cachedVtxRange) {
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sVtxRange = *cachedVtxRange;
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} else {
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sVtxRange = push_storage(reinterpret_cast<const uint8_t*>(vtxData->data()), vtxData->size() * 16);
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cachedVtxRange = sVtxRange;
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}
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if (cachedNrmRange) {
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sNrmRange = *cachedNrmRange;
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} else {
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sNrmRange = push_storage(reinterpret_cast<const uint8_t*>(nrmData->data()), nrmData->size() * 16);
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cachedNrmRange = sNrmRange;
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}
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if (cachedTcRange) {
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sTcRange = *cachedTcRange;
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} else {
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sTcRange = push_storage(reinterpret_cast<const uint8_t*>(tcData->data()), tcData->size() * 8);
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cachedTcRange = sTcRange;
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}
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if (cachedPackedTcRange) {
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sPackedTcRange = *cachedPackedTcRange;
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} else if (tcData == tex0TcData) {
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sPackedTcRange = sTcRange;
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} else {
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sPackedTcRange = push_storage(reinterpret_cast<const uint8_t*>(tex0TcData->data()), tex0TcData->size() * 8);
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cachedPackedTcRange = sPackedTcRange;
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}
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model::PipelineConfig config{};
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const gx::BindGroupRanges ranges{
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.vtxDataRange = sVtxRange,
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.nrmDataRange = sNrmRange,
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.tcDataRange = sTcRange,
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.packedTcDataRange = sPackedTcRange,
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};
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const auto info = populate_pipeline_config(config, GX::TRIANGLES, ranges);
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const auto pipeline = pipeline_ref(config);
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push_draw_command(model::DrawData{
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.pipeline = pipeline,
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.vertRange = vertRange,
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.idxRange = idxRange,
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.dataRanges = ranges,
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.uniformRange = build_uniform(info),
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.indexCount = numIndices,
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.bindGroups = info.bindGroups,
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.dstAlpha = gx::g_gxState.dstAlpha,
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});
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}
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State construct_state() { return {}; }
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wgpu::RenderPipeline create_pipeline(const State& state, [[maybe_unused]] PipelineConfig config) {
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const auto [shader, info] = build_shader(config.shaderConfig);
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std::array<wgpu::VertexAttribute, gx::MaxVtxAttr> vtxAttrs;
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auto [num4xAttr, rem] = std::div(config.shaderConfig.indexedAttributeCount, 4);
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u32 num2xAttr = 0;
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if (rem > 2) {
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++num4xAttr;
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} else if (rem > 0) {
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++num2xAttr;
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}
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u32 offset = 0;
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for (u32 i = 0; i < num4xAttr; ++i) {
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vtxAttrs[i] = {
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.format = wgpu::VertexFormat::Sint16x4,
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.offset = offset,
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.shaderLocation = i,
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};
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offset += 8;
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}
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for (u32 i = 0; i < num2xAttr; ++i) {
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const u32 idx = num4xAttr + i;
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vtxAttrs[idx] = {
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.format = wgpu::VertexFormat::Sint16x2,
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.offset = offset,
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.shaderLocation = idx,
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};
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offset += 4;
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}
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const std::array vtxBuffers{wgpu::VertexBufferLayout{
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.arrayStride = offset,
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.stepMode = wgpu::VertexStepMode::Vertex,
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.attributeCount = num4xAttr + num2xAttr,
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.attributes = vtxAttrs.data(),
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}};
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return build_pipeline(config, info, vtxBuffers, shader, "Model Pipeline");
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}
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void render(const State& state, const DrawData& data, const wgpu::RenderPassEncoder& pass) {
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if (!bind_pipeline(data.pipeline, pass)) {
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return;
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}
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const std::array offsets{
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data.uniformRange.offset,
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storage_offset(data.dataRanges.vtxDataRange),
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storage_offset(data.dataRanges.nrmDataRange),
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storage_offset(data.dataRanges.packedTcDataRange),
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storage_offset(data.dataRanges.tcDataRange),
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};
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pass.SetBindGroup(0, find_bind_group(data.bindGroups.uniformBindGroup), offsets.size(), offsets.data());
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if (data.bindGroups.samplerBindGroup && data.bindGroups.textureBindGroup) {
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pass.SetBindGroup(1, find_bind_group(data.bindGroups.samplerBindGroup));
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pass.SetBindGroup(2, find_bind_group(data.bindGroups.textureBindGroup));
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}
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pass.SetVertexBuffer(0, g_vertexBuffer, data.vertRange.offset, data.vertRange.size);
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pass.SetIndexBuffer(g_indexBuffer, wgpu::IndexFormat::Uint16, data.idxRange.offset, data.idxRange.size);
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if (data.dstAlpha) {
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const wgpu::Color color{0.f, 0.f, 0.f, *data.dstAlpha};
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pass.SetBlendConstant(&color);
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}
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pass.DrawIndexed(data.indexCount);
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}
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} // namespace aurora::gfx::model
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static absl::flat_hash_map<XXH64_hash_t, aurora::gfx::Range> sCachedRanges;
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template <typename Vec>
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static inline void cache_array(const void* data, Vec*& outPtr, std::optional<aurora::gfx::Range>& outRange, u8 stride) {
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Vec* vecPtr = static_cast<Vec*>(data);
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outPtr = vecPtr;
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outRange.reset();
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}
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void GXSetArray(GX::Attr attr, const void* data, u8 stride) noexcept {
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using namespace aurora::gfx::model;
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switch (attr) {
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case GX::VA_POS:
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cache_array(data, vtxData, cachedVtxRange, stride);
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break;
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case GX::VA_NRM:
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cache_array(data, nrmData, cachedNrmRange, stride);
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break;
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case GX::VA_TEX0:
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cache_array(data, tex0TcData, cachedPackedTcRange, stride);
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break;
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case GX::VA_TEX1:
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cache_array(data, tcData, cachedTcRange, stride);
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break;
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default:
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Log.report(logvisor::Fatal, FMT_STRING("GXSetArray: invalid attr {}"), attr);
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unreachable();
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}
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}
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void GXCallDisplayList(const void* data, u32 nbytes) noexcept {
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aurora::gfx::model::queue_surface(static_cast<const u8*>(data), nbytes);
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}
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