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/* $Id: shaderlib.h $ */
/** @file
* shaderlib -- interface to WINE's Direct3D shader functions
*/
/*
* Copyright (C) 2014-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#ifndef VBOX_INCLUDED_SRC_Graphics_shaderlib_shaderlib_h
#define VBOX_INCLUDED_SRC_Graphics_shaderlib_shaderlib_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/cdefs.h>
RT_C_DECLS_BEGIN
#ifdef IN_SHADERLIB_STATIC
# define SHADERDECL(type) DECLHIDDEN(type) RTCALL
#else
# define SHADERDECL(type) DECLEXPORT(type) RTCALL
#endif
/** Pointer to shaderlib callback interface. */
typedef struct VBOXVMSVGASHADERIF *PVBOXVMSVGASHADERIF;
/**
* Interface the shader lib can use to talk back to the VBox VMSVGA OGL 3D code.
*/
typedef struct VBOXVMSVGASHADERIF
{
/**
* Switches the initialization profile in builds where we have to juggle two
* OpenGL profiles to gather all the data (i.e. mac os x).
*
* @param pThis Pointer to this structure.
* @param fOtherProfile If set, switch to the non-default profile. If
* clear, switch back to the default profile.
*/
DECLCALLBACKMEMBER(void, pfnSwitchInitProfile,(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile));
/**
* Extension enumeration function.
*
* @param pThis Pointer to this structure.
* @param ppvEnumCtx Pointer to a void point that's initialized to NULL
* before the first call.
* @param pszBuf Where to store the extension name. Garbled on
* overflow (we assume no overflow).
* @param cbBuf The size of the buffer @a pszBuf points to.
* @param fOtherProfile Indicates which profile to get extensions from,
* we'll use the default profile if CLEAR and the
* non-default if SET.
*/
DECLCALLBACKMEMBER(bool, pfnGetNextExtension,(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx, char *pszBuf, size_t cbBuf,
bool fOtherProfile));
} VBOXVMSVGASHADERIF;
SHADERDECL(int) ShaderInitLib(PVBOXVMSVGASHADERIF pVBoxShaderIf);
SHADERDECL(int) ShaderDestroyLib(void);
SHADERDECL(int) ShaderContextCreate(void **ppShaderContext);
SHADERDECL(int) ShaderContextDestroy(void *pShaderContext);
SHADERDECL(int) ShaderCreateVertexShader(void *pShaderContext, const uint32_t *pShaderData, uint32_t cbShaderData, void **pShaderObj);
SHADERDECL(int) ShaderCreatePixelShader(void *pShaderContext, const uint32_t *pShaderData, uint32_t cbShaderData, void **pShaderObj);
SHADERDECL(int) ShaderDestroyVertexShader(void *pShaderContext, void *pShaderObj);
SHADERDECL(int) ShaderDestroyPixelShader(void *pShaderContext, void *pShaderObj);
SHADERDECL(int) ShaderSetVertexShader(void *pShaderContext, void *pShaderObj);
SHADERDECL(int) ShaderSetPixelShader(void *pShaderContext, void *pShaderObj);
SHADERDECL(int) ShaderSetVertexShaderConstantB(void *pShaderContext, uint32_t reg, const uint8_t *pValues, uint32_t cRegisters);
SHADERDECL(int) ShaderSetVertexShaderConstantI(void *pShaderContext, uint32_t reg, const int32_t *pValues, uint32_t cRegisters);
SHADERDECL(int) ShaderSetVertexShaderConstantF(void *pShaderContext, uint32_t reg, const float *pValues, uint32_t cRegisters);
SHADERDECL(int) ShaderSetPixelShaderConstantB(void *pShaderContext, uint32_t reg, const uint8_t *pValues, uint32_t cRegisters);
SHADERDECL(int) ShaderSetPixelShaderConstantI(void *pShaderContext, uint32_t reg, const int32_t *pValues, uint32_t cRegisters);
SHADERDECL(int) ShaderSetPixelShaderConstantF(void *pShaderContext, uint32_t reg, const float *pValues, uint32_t cRegisters);
SHADERDECL(int) ShaderSetPositionTransformed(void *pShaderContext, unsigned cxViewPort, unsigned cyViewPort, bool fPreTransformed);
SHADERDECL(int) ShaderUpdateState(void *pShaderContext, uint32_t rtHeight);
SHADERDECL(int) ShaderTransformProjection(unsigned cxViewPort, unsigned cyViewPort, float matrix[16], bool fPretransformed);
RT_C_DECLS_END
#endif /* !VBOX_INCLUDED_SRC_Graphics_shaderlib_shaderlib_h */
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