sdlDrawGpuIndexedPrimitives function gpu

void sdlDrawGpuIndexedPrimitives(Pointer<SdlGpuRenderPass> renderPass, int numIndices, int numInstances, int firstIndex, int vertexOffset, int firstInstance,)

Draws data using bound graphics state with an index buffer and instancing enabled.

You must not call this function before binding a graphics pipeline.

Note that the first_vertex and first_instance parameters are NOT compatible with built-in vertex/instance ID variables in shaders (for example, SV_VertexID); GPU APIs and shader languages do not define these built-in variables consistently, so if your shader depends on them, the only way to keep behavior consistent and portable is to always pass 0 for the correlating parameter in the draw calls.

\param render_pass a render pass handle. \param num_indices the number of indices to draw per instance. \param num_instances the number of instances to draw. \param first_index the starting index within the index buffer. \param vertex_offset value added to vertex index before indexing into the vertex buffer. \param first_instance the ID of the first instance to draw.

\since This function is available since SDL 3.2.0.

extern SDL_DECLSPEC void SDLCALL SDL_DrawGPUIndexedPrimitives( SDL_GPURenderPass *render_pass, Uint32 num_indices, Uint32 num_instances, Uint32 first_index, Sint32 vertex_offset, Uint32 first_instance)

Implementation

void sdlDrawGpuIndexedPrimitives(
  Pointer<SdlGpuRenderPass> renderPass,
  int numIndices,
  int numInstances,
  int firstIndex,
  int vertexOffset,
  int firstInstance,
) {
  final sdlDrawGpuIndexedPrimitivesLookupFunction = _libSdl
      .lookupFunction<
        Void Function(
          Pointer<SdlGpuRenderPass> renderPass,
          Uint32 numIndices,
          Uint32 numInstances,
          Uint32 firstIndex,
          Int32 vertexOffset,
          Uint32 firstInstance,
        ),
        void Function(
          Pointer<SdlGpuRenderPass> renderPass,
          int numIndices,
          int numInstances,
          int firstIndex,
          int vertexOffset,
          int firstInstance,
        )
      >('SDL_DrawGPUIndexedPrimitives');
  return sdlDrawGpuIndexedPrimitivesLookupFunction(
    renderPass,
    numIndices,
    numInstances,
    firstIndex,
    vertexOffset,
    firstInstance,
  );
}