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VideoBackends:Metal: Avoid submitting draw calls with no vertices/indices

This commit is contained in:
TellowKrinkle 2022-07-03 20:47:31 -05:00
parent ee3f2b8fcb
commit 5065767abd
1 changed files with 8 additions and 0 deletions
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8
Source/Core/VideoBackends/Metal/MTLStateTracker.mm
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@ -80,6 +80,10 @@ bool Metal::StateTracker::UsageTracker::PrepareForAllocation(u64 last_draw, size
size_t Metal::StateTracker::UsageTracker::Allocate(u64 current_draw, size_t amt)
{
// Allocation of zero bytes would make the buffer think it's full
// Zero bytes is useless anyways, so don't mark usage in that case
if (!amt)
return m_pos;
if (m_usage.empty() || m_usage.back().drawno != current_draw)
m_usage.push_back({current_draw, m_pos});
size_t ret = m_pos;
@ -886,6 +890,8 @@ void Metal::StateTracker::PrepareCompute()
void Metal::StateTracker::Draw(u32 base_vertex, u32 num_vertices)
{
if (!num_vertices)
return;
PrepareRender();
[m_current_render_encoder drawPrimitives:m_state.render_pipeline->Prim()
vertexStart:base_vertex
@ -894,6 +900,8 @@ void Metal::StateTracker::Draw(u32 base_vertex, u32 num_vertices)
void Metal::StateTracker::DrawIndexed(u32 base_index, u32 num_indices, u32 base_vertex)
{
if (!num_indices) // Happens in Metroid Prime, Metal API validation doesn't like this
return;
PrepareRender();
[m_current_render_encoder drawIndexedPrimitives:m_state.render_pipeline->Prim()
indexCount:num_indices