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Metal: bind index buffer with offset

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This commit is contained in:
Patrick Dawson 2024-08-30 22:17:41 +02:00
parent a5830f6eb9
commit f381cee82f
2 changed files with 7 additions and 2 deletions
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1
drivers/metal/metal_objects.h
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@ -227,6 +227,7 @@ public:
id<MTLRenderCommandEncoder> encoder = nil;
id<MTLBuffer> __unsafe_unretained index_buffer = nil; // Buffer is owned by RDD.
MTLIndexType index_type = MTLIndexTypeUInt16;
uint32_t index_offset = 0;
LocalVector<id<MTLBuffer> __unsafe_unretained> vertex_buffers;
LocalVector<NSUInteger> vertex_offsets;
// clang-format off

8
drivers/metal/metal_objects.mm
View File

@ -717,6 +717,7 @@ void MDCommandBuffer::render_bind_index_buffer(RDD::BufferID p_buffer, RDD::Inde
render.index_buffer = rid::get(p_buffer);
render.index_type = p_format == RDD::IndexBufferFormat::INDEX_BUFFER_FORMAT_UINT16 ? MTLIndexTypeUInt16 : MTLIndexTypeUInt32;
render.index_offset = p_offset;
}
void MDCommandBuffer::render_draw_indexed(uint32_t p_index_count,
@ -729,13 +730,16 @@ void MDCommandBuffer::render_draw_indexed(uint32_t p_index_count,
id<MTLRenderCommandEncoder> enc = render.encoder;
uint32_t index_offset = render.index_offset;
index_offset += p_first_index * (render.index_type == MTLIndexTypeUInt16 ? sizeof(uint16_t) : sizeof(uint32_t));
[enc drawIndexedPrimitives:render.pipeline->raster_state.render_primitive
indexCount:p_index_count
indexType:render.index_type
indexBuffer:render.index_buffer
indexBufferOffset:p_vertex_offset
indexBufferOffset:index_offset
instanceCount:p_instance_count
baseVertex:p_first_index
baseVertex:p_vertex_offset
baseInstance:p_first_instance];
}