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renderer_vulkan: Render polygons using triangle fans. (#1969)

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squidbus 2024-12-29 03:30:37 -08:00 • committed by GitHub
parent 1bc27135e3
commit 38f1cc2652
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5 changed files with 15 additions and 56 deletions
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30
src/video_core/buffer_cache/buffer_cache.cpp
View file

@ -234,46 +234,22 @@ bool BufferCache::BindVertexBuffers(
return has_step_rate;
}
u32 BufferCache::BindIndexBuffer(bool& is_indexed, u32 index_offset) {
// Emulate QuadList and Polygon primitive types with CPU made index buffer.
void BufferCache::BindIndexBuffer(u32 index_offset) {
const auto& regs = liverpool->regs;
if (!is_indexed) {
if (regs.primitive_type != AmdGpu::PrimitiveType::Polygon) {
return regs.num_indices;
}
// Emit indices.
const u32 index_size = 3 * regs.num_indices;
const auto [data, offset] = stream_buffer.Map(index_size);
Vulkan::LiverpoolToVK::EmitPolygonToTriangleListIndices(data, regs.num_indices);
stream_buffer.Commit();
// Bind index buffer.
is_indexed = true;
const auto cmdbuf = scheduler.CommandBuffer();
cmdbuf.bindIndexBuffer(stream_buffer.Handle(), offset, vk::IndexType::eUint16);
return index_size / sizeof(u16);
}
// Figure out index type and size.
const bool is_index16 =
regs.index_buffer_type.index_type == AmdGpu::Liverpool::IndexType::Index16;
const vk::IndexType index_type = is_index16 ? vk::IndexType::eUint16 : vk::IndexType::eUint32;
const u32 index_size = is_index16 ? sizeof(u16) : sizeof(u32);
VAddr index_address = regs.index_base_address.Address<VAddr>();
index_address += index_offset * index_size;
if (regs.primitive_type == AmdGpu::PrimitiveType::Polygon) {
UNREACHABLE();
}
const VAddr index_address =
regs.index_base_address.Address<VAddr>() + index_offset * index_size;
// Bind index buffer.
const u32 index_buffer_size = regs.num_indices * index_size;
const auto [vk_buffer, offset] = ObtainBuffer(index_address, index_buffer_size, false);
const auto cmdbuf = scheduler.CommandBuffer();
cmdbuf.bindIndexBuffer(vk_buffer->Handle(), offset, index_type);
return regs.num_indices;
}
void BufferCache::InlineData(VAddr address, const void* value, u32 num_bytes, bool is_gds) {

2
src/video_core/buffer_cache/buffer_cache.h
View file

@ -83,7 +83,7 @@ public:
const std::optional<Shader::Gcn::FetchShaderData>& fetch_shader);
/// Bind host index buffer for the current draw.
u32 BindIndexBuffer(bool& is_indexed, u32 index_offset);
void BindIndexBuffer(u32 index_offset);
/// Writes a value to GPU buffer.
void InlineData(VAddr address, const void* value, u32 num_bytes, bool is_gds);