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/* -------------------------------------------
Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
File: GPU.h
Purpose: GPU/FB System Calls.
------------------------------------------- */
#ifndef SCI_GPU_H
#define SCI_GPU_H
#include <LibSCI/SCI.h>
/// ------------------------------------------------------------------------------------------ //
/// @brief Graphics Processor API.
/// ------------------------------------------------------------------------------------------ //
struct GPUCmdEntry;
struct GPUCmdEntryTraits;
typedef VoidPtr GPUObject;
/// ------------------------------------------------------------------------------------------ //
/// @brief Command structure type.
/// ------------------------------------------------------------------------------------------ //
struct GPUCmdEntry
{
VoidPtr Data{nullptr};
SizeT DataSz{0};
SizeT Layer{0};
BOOL IsGPGPUData{NO};
};
struct GPUCmdEntryTraits final
{
GPUCmdEntry* Cmd{nullptr};
BOOL isGPGPUData()
{
return this->isValid() && this->Cmd->IsGPGPUData;
}
BOOL isBackBuffer()
{
return this->Cmd->Layer > 0;
}
BOOL isValid()
{
return this->Cmd->Data && (this->Cmd->DataSz > 0) && (MmGetHeapFlags(this->Cmd->Data) != ~0);
}
};
IMPORT_C BOOL GPUListDevices(const Char** list, SizeT cnt);
IMPORT_C GPUObject GPUFindByDeviceName(_Input const Char* device_name);
IMPORT_C GPUObject GPUQueryInfo(_Input const GPUObject* gpu_handle, VoidPtr* out, SizeT out_sz);
IMPORT_C SInt32 GPUDisposeDevice(GPUObject gpu_handle, Bool cancel_all, Bool flush_all);
IMPORT_C SInt32 GPUSendCmdBufferListWithCnt(GPUObject gpu_handle, GPUCmdEntry** cmd_list, SizeT cmd_list_cnt);
// ------------------------------------------------------------------------------------------ //
// @brief Framebuffer API.
// ------------------------------------------------------------------------------------------ //
IMPORT_C SInt32 FBAcquireBuffer(GPUObject* out, SInt32 width, SInt32 height);
IMPORT_C SInt32 FBDisposeBuffer(GPUObject* in);
IMPORT_C SInt32 FBGetColorProfile(GPUObject in);
IMPORT_C SInt32 FBQueryInfo(GPUObject handle, VoidPtr* info_ptr, SizeT* info_sz);
#endif // ifndef SCI_GPU_H
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