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metal draw indexed

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This commit is contained in:
Greg Wells
2025-06-06 19:44:17 -04:00
parent e66075beaf
commit 516f2122a1
1 changed files with 28 additions and 0 deletions
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28
rendering_api/metal/src/core/commands/commands/metal_commands.m
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@@ -91,3 +91,31 @@ void gnCommandDrawFn(struct gnCommandBuffer_t* buffer, int vertexCount, int firs
[encoder drawPrimitives:MTLPrimitiveTypeTriangleStrip vertexStart:firstVertex vertexCount:vertexCount instanceCount:instanceCount baseInstance:firstInstance];
}
}
void gnCommandDrawIndexedFn(gnCommandBufferHandle buffer, gnIndexType type, int indexCount, int firstIndex, int vertexOffset, int instanceCount, int firstInstance) {
id<MTLRenderCommandEncoder> encoder = (id<MTLRenderCommandEncoder>)buffer->commandBuffer->encoder;
MTLPrimitiveType primative;
switch (buffer->commandBuffer->boundGraphcisPipeline->info.primitiveType) {
case GN_PRIMITIVE_POINTS: primative = MTLPrimitiveTypePoint; break;
case GN_PRIMITIVE_LINE_STRIP: primative = MTLPrimitiveTypeLineStrip; break;
case GN_PRIMITIVE_LINES: primative = MTLPrimitiveTypeLine; break;
case GN_PRIMITIVE_TRIANGLE_STRIP: primative = MTLPrimitiveTypeTriangleStrip; break;
case GN_PRIMITIVE_TRIANGLES: primative = MTLPrimitiveTypeTriangle; break;
}
[encoder
drawIndexedPrimitives:primative
indexCount:indexCount
indexType:((type == GN_UINT32) ? MTLIndexTypeUInt32 : MTLIndexTypeUInt16)
indexBuffer:buffer->commandBuffer->indexBuffer->buffer->buffer
indexBufferOffset:0
instanceCount:instanceCount
baseVertex:vertexOffset
baseInstance:firstInstance
];
// [encoder drawIndexedPrimitives:(MTLPrimitiveType)
// indexCount:indexCount
// indexType:((type == GN_UINT32) ? MTLIndexTypeUInt32 : MTLIndexTypeUInt16)
// indexBuffer:buffer->commandBuffer->indexBuffer->buffer->buffer
// indexBufferOffset:firstIndex
// ];
}