1 files changed, 108 insertions, 0 deletions
diff --git a/include/cuda.h b/include/cuda.h
new file mode 100644
index 0000000..fd1f9f9
--- /dev/null
+++ b/include/cuda.h
@@ -0,0 +1,108 @@
+#ifndef GSR_CUDA_H
+#define GSR_CUDA_H
+
+#include "overclock.h"
+#include <stddef.h>
+#include <stdbool.h>
+
+// To prevent hwcontext_cuda.h from including cuda.h
+#define CUDA_VERSION 11070
+
+#define CU_CTX_SCHED_AUTO 0
+
+#if defined(_WIN64) || defined(__LP64__)
+typedef unsigned long long CUdeviceptr_v2;
+#else
+typedef unsigned int CUdeviceptr_v2;
+#endif
+typedef CUdeviceptr_v2 CUdeviceptr;
+
+typedef int CUresult;
+typedef int CUdevice_v1;
+typedef CUdevice_v1 CUdevice;
+typedef struct CUctx_st *CUcontext;
+typedef struct CUstream_st *CUstream;
+typedef struct CUarray_st *CUarray;
+
+#define CUDA_SUCCESS 0
+
+typedef enum CUgraphicsMapResourceFlags_enum {
+    CU_GRAPHICS_MAP_RESOURCE_FLAGS_NONE          = 0x00,
+    CU_GRAPHICS_MAP_RESOURCE_FLAGS_READ_ONLY     = 0x01,
+    CU_GRAPHICS_MAP_RESOURCE_FLAGS_WRITE_DISCARD = 0x02
+} CUgraphicsMapResourceFlags;
+
+typedef enum CUgraphicsRegisterFlags_enum {
+    CU_GRAPHICS_REGISTER_FLAGS_NONE           = 0x00,
+    CU_GRAPHICS_REGISTER_FLAGS_READ_ONLY      = 0x01,
+    CU_GRAPHICS_REGISTER_FLAGS_WRITE_DISCARD  = 0x02,
+    CU_GRAPHICS_REGISTER_FLAGS_SURFACE_LDST   = 0x04,
+    CU_GRAPHICS_REGISTER_FLAGS_TEXTURE_GATHER = 0x08
+} CUgraphicsRegisterFlags;
+
+typedef enum CUmemorytype_enum {
+    CU_MEMORYTYPE_HOST    = 0x01,    /**< Host memory */
+    CU_MEMORYTYPE_DEVICE  = 0x02,    /**< Device memory */
+    CU_MEMORYTYPE_ARRAY   = 0x03,    /**< Array memory */
+    CU_MEMORYTYPE_UNIFIED = 0x04     /**< Unified device or host memory */
+} CUmemorytype;
+
+typedef struct CUDA_MEMCPY2D_st {
+    size_t srcXInBytes;         /**< Source X in bytes */
+    size_t srcY;                /**< Source Y */
+
+    CUmemorytype srcMemoryType; /**< Source memory type (host, device, array) */
+    const void *srcHost;        /**< Source host pointer */
+    CUdeviceptr srcDevice;      /**< Source device pointer */
+    CUarray srcArray;           /**< Source array reference */
+    size_t srcPitch;            /**< Source pitch (ignored when src is array) */
+
+    size_t dstXInBytes;         /**< Destination X in bytes */
+    size_t dstY;                /**< Destination Y */
+
+    CUmemorytype dstMemoryType; /**< Destination memory type (host, device, array) */
+    void *dstHost;              /**< Destination host pointer */
+    CUdeviceptr dstDevice;      /**< Destination device pointer */
+    CUarray dstArray;           /**< Destination array reference */
+    size_t dstPitch;            /**< Destination pitch (ignored when dst is array) */
+
+    size_t WidthInBytes;        /**< Width of 2D memory copy in bytes */
+    size_t Height;              /**< Height of 2D memory copy */
+} CUDA_MEMCPY2D_v2;
+typedef CUDA_MEMCPY2D_v2 CUDA_MEMCPY2D;
+
+typedef struct CUgraphicsResource_st *CUgraphicsResource;
+
+typedef struct gsr_cuda gsr_cuda;
+struct gsr_cuda {
+    gsr_overclock overclock;
+    bool do_overclock;
+
+    void *library;
+    CUcontext cu_ctx;
+
+    CUresult (*cuInit)(unsigned int Flags);
+    CUresult (*cuDeviceGetCount)(int *count);
+    CUresult (*cuDeviceGet)(CUdevice *device, int ordinal);
+    CUresult (*cuCtxCreate_v2)(CUcontext *pctx, unsigned int flags, CUdevice dev);
+    CUresult (*cuCtxDestroy_v2)(CUcontext ctx);
+    CUresult (*cuCtxPushCurrent_v2)(CUcontext ctx);
+    CUresult (*cuCtxPopCurrent_v2)(CUcontext *pctx);
+    CUresult (*cuGetErrorString)(CUresult error, const char **pStr);
+    CUresult (*cuMemcpy2D_v2)(const CUDA_MEMCPY2D *pCopy);
+    CUresult (*cuMemcpy2DAsync_v2)(const CUDA_MEMCPY2D *pcopy, CUstream hStream);
+    CUresult (*cuStreamSynchronize)(CUstream hStream);
+
+    CUresult (*cuGraphicsGLRegisterImage)(CUgraphicsResource *pCudaResource, unsigned int image, unsigned int target, unsigned int flags);
+    CUresult (*cuGraphicsEGLRegisterImage)(CUgraphicsResource *pCudaResource, void *image, unsigned int flags);
+    CUresult (*cuGraphicsResourceSetMapFlags)(CUgraphicsResource resource, unsigned int flags);
+    CUresult (*cuGraphicsMapResources)(unsigned int count, CUgraphicsResource *resources, CUstream hStream);
+    CUresult (*cuGraphicsUnmapResources)(unsigned int count, CUgraphicsResource *resources, CUstream hStream);
+    CUresult (*cuGraphicsUnregisterResource)(CUgraphicsResource resource);
+    CUresult (*cuGraphicsSubResourceGetMappedArray)(CUarray *pArray, CUgraphicsResource resource, unsigned int arrayIndex, unsigned int mipLevel);
+};
+
+bool gsr_cuda_load(gsr_cuda *self, Display *display, bool overclock);
+void gsr_cuda_unload(gsr_cuda *self);
+
+#endif /* GSR_CUDA_H */