src/parsec/disk-image/parsec/parsec-benchmark/pkgs/libs/mesa/src/src/mesa/drivers/windows/gldirect/dglcontext.h - public/gem5-resources - Git at Google

 /****************************************************************************
 *
 *                        Mesa 3-D graphics library
 *                        Direct3D Driver Interface
 *
 *  ========================================================================
 *
 *   Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
 *
 *   Permission is hereby granted, free of charge, to any person obtaining a
 *   copy of this software and associated documentation files (the "Software"),
 *   to deal in the Software without restriction, including without limitation
 *   the rights to use, copy, modify, merge, publish, distribute, sublicense,
 *   and/or sell copies of the Software, and to permit persons to whom the
 *   Software is furnished to do so, subject to the following conditions:
 *
 *   The above copyright notice and this permission notice shall be included
 *   in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 *   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 *   SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
 *   OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 *   SOFTWARE.
 *
 *  ======================================================================
 *
 * Language:     ANSI C
 * Environment:  Windows 9x (Win32)
 *
 * Description:  OpenGL context handling.
 *
 ****************************************************************************/

 #ifndef __DGLCONTEXT_H
 #define __DGLCONTEXT_H

 // Disable compiler complaints about DLL linkage
 #pragma warning (disable:4273)

 // Macros to control compilation
 #ifndef STRICT
 #define STRICT
 #endif // STRICT
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <GL\gl.h>

 #ifdef _USE_GLD3_WGL
 	#include "dglmacros.h"
 	#include "dglglobals.h"
 	#include "pixpack.h"
 	#include "ddlog.h"
 	#include "dglpf.h"
 	#include "context.h"	// Mesa context
 #else
 	#include <ddraw.h>
 	#include <d3d.h>

 	#include "dglmacros.h"
 	#include "dglglobals.h"
 	#include "pixpack.h"
 	#include "ddlog.h"
 	#include "dglpf.h"
 	#include "d3dvertex.h"

 	#include "DirectGL.h"

 	#include "context.h"	// Mesa context
 	#include "vb.h"			// Mesa vertex buffer
 #endif // _USE_GLD3_WGL

 /*---------------------- Macros and type definitions ----------------------*/

 // TODO: Use a list instead of this constant!
 #define DGL_MAX_CONTEXTS 32

 // Structure for describing an OpenGL context
 #ifdef _USE_GLD3_WGL
 typedef struct {
 	BOOL				bHasBeenCurrent;
 	DGL_pixelFormat		*lpPF;

 	// Pointer to private driver data (this also contains the drawable).
 	void				*glPriv;

 	// Mesa vars:
 	GLcontext			*glCtx;			// The core Mesa context
 	GLvisual			*glVis;			// Describes the color buffer
 	GLframebuffer		*glBuffer;		// Ancillary buffers

 	GLuint				ClearIndex;
 	GLuint				CurrentIndex;
 	GLubyte				ClearColor[4];
 	GLubyte				CurrentColor[4];

 	BOOL				EmulateSingle;	// Emulate single-buffering
 	BOOL				bDoubleBuffer;
 	BOOL				bDepthBuffer;

 	// Shared driver vars:
 	BOOL				bAllocated;
     BOOL				bFullscreen;	// Is this a fullscreen context?
     BOOL				bSceneStarted;	// Has a lpDev->BeginScene been issued?
     BOOL				bCanRender;		// Flag: states whether rendering is OK
 	BOOL				bFrameStarted;	// Has frame update started at all?
 	BOOL				bStencil;		// TRUE if this context has stencil
 	BOOL				bGDIEraseBkgnd; // GDI Erase Background command

 	// Window information
 	HWND				hWnd;			// Window handle
 	HDC					hDC;			// Windows' Device Context of the window
 	DWORD				dwWidth;		// Window width
 	DWORD				dwHeight;		// Window height
 	DWORD				dwBPP;			// Window bits-per-pixel;
 	RECT				rcScreenRect;	// Screen rectangle
 	DWORD				dwModeWidth;	// Display mode width
 	DWORD				dwModeHeight;	// Display mode height
 	float				dvClipX;
 	float				dvClipY;
 	LONG				lpfnWndProc;	// window message handler function

 } DGL_ctx;

 #define GLD_context			DGL_ctx
 #define GLD_GET_CONTEXT(c)	(GLD_context*)(c)->DriverCtx

 #else // _USE_GLD3_WGL

 typedef struct {
 	BOOL				bHasBeenCurrent;
 	DGL_pixelFormat		*lpPF;
 	//
 	// Mesa context vars:
 	//
 	GLcontext			*glCtx;			// The core Mesa context
 	GLvisual			*glVis;			// Describes the color buffer
 	GLframebuffer		*glBuffer;		// Ancillary buffers

 	GLuint				ClearIndex;
 	GLuint				CurrentIndex;
 	GLubyte				ClearColor[4];
 	GLubyte				CurrentColor[4];

 	BOOL				EmulateSingle;	// Emulate single-buffering
 	BOOL				bDoubleBuffer;
 	BOOL				bDepthBuffer;
 	int					iZBufferPF;		// Index of Zbuffer pixel format

 	// Vertex buffer: one-to-one correlation with Mesa's vertex buffer.
 	// This will be filled by our setup function (see d3dvsetup.c)
 	DGL_TLvertex		gWin[VB_SIZE];	// Transformed and lit vertices
 //	DGL_Lvertex			gObj[VB_SIZE];	// Lit vertices in object coordinates.

 	// Indices for DrawIndexedPrimitive.
 	// Clipped quads are drawn seperately, so use VB_SIZE.
 	// 6 indices are needed to make 2 triangles for each possible quad
 //	WORD				wIndices[(VB_SIZE / 4) * 6];
 	WORD				wIndices[32768];

 	//
 	// Device driver vars:
 	//
 	BOOL				bAllocated;
     BOOL				bFullscreen;	// Is this a fullscreen context?
     BOOL				bSceneStarted;	// Has a lpDev->BeginScene been issued?
     BOOL				bCanRender;		// Flag: states whether rendering is OK
 	BOOL				bFrameStarted;	// Has frame update started at all?

     // DirectX COM interfaces, postfixed with the interface number
 	IDirectDraw				*lpDD1;
 	IDirectDraw4			*lpDD4;
 	IDirect3D3				*lpD3D3;
 	IDirect3DDevice3		*lpDev3;
 	IDirect3DViewport3		*lpViewport3;
 	IDirectDrawSurface4		*lpFront4;
 	IDirectDrawSurface4		*lpBack4;
 	IDirectDrawSurface4		*lpDepth4;

 	// Vertex buffers
 	BOOL					bD3DPipeline; // True if using D3D geometry pipeline
 	IDirect3DVertexBuffer	*m_vbuf;	// Unprocessed vertices
 	IDirect3DVertexBuffer	*m_pvbuf;	// Processed vertices ready to be rendered

 	D3DTEXTUREOP		ColorOp[MAX_TEXTURE_UNITS]; // Used for re-enabling texturing
 	D3DTEXTUREOP		AlphaOp[MAX_TEXTURE_UNITS]; // Used for re-enabling texturing
 	struct gl_texture_object *tObj[MAX_TEXTURE_UNITS];

 	DDCAPS				ddCaps;			// DirectDraw caps
 	D3DDEVICEDESC		D3DDevDesc;		// Direct3D Device description

 	DDPIXELFORMAT		ddpfRender;		// Pixel format of the render buffer
 	DDPIXELFORMAT		ddpfDepth;		// Pixel format of the depth buffer

 	BOOL				bStencil;		// TRUE is this context has stencil

 	PX_packFunc			fnPackFunc;		// Pixel packing function for SW
 	PX_unpackFunc		fnUnpackFunc;	// Pixel unpacking function for SW
 	PX_packSpanFunc		fnPackSpanFunc;	// Pixel span packer

 	D3DVIEWPORT2		d3dViewport;	// D3D Viewport object

 	D3DCULL				cullmode;		// Direct3D cull mode
 	D3DCOLOR			curcolor;		// Current color
 	DWORD				dwColorPF;		// Current color, in format of target surface
 	D3DCOLOR			d3dClearColor;	// Clear color
 	D3DCOLOR			ConstantColor;	// For flat shading
 	DWORD				dwClearColorPF;	// Clear color, in format of target surface
 	BOOL				bGDIEraseBkgnd; // GDI Erase Background command

 	// Primitive caches
 //	DGL_vertex			LineCache[DGL_MAX_LINE_VERTS];
 //	DGL_vertex			TriCache[DGL_MAX_TRI_VERTS];
 //	DWORD				dwNextLineVert;
 //	DWORD				dwNextTriVert;

 	// Window information
 	HWND				hWnd;			// Window handle
 	HDC					hDC;			// Windows' Device Context of the window
 	DWORD				dwWidth;		// Window width
 	DWORD				dwHeight;		// Window height
 	DWORD				dwBPP;			// Window bits-per-pixel;
 	RECT				rcScreenRect;	// Screen rectangle
 	DWORD				dwModeWidth;	// Display mode width
 	DWORD				dwModeHeight;	// Display mode height
 	float				dvClipX;
 	float				dvClipY;
 	LONG				lpfnWndProc;	// window message handler function

 	// Shared texture palette
 	IDirectDrawPalette	*lpGlobalPalette;

 	// Usage counters.
 	// One of these counters will be incremented when we choose
 	// between hardware and software rendering functions.
 //	DWORD				dwHWUsageCount;	// Hardware usage count
 //	DWORD				dwSWUsageCount;	// Software usage count

 	// Texture state flags.
 //	BOOL				m_texturing;		// TRUE is texturing
 //	BOOL				m_mtex;				// TRUE if multitexture
 //	BOOL				m_texHandleValid;	// TRUE if tex state valid

 	// Renderstate caches to ensure no redundant state changes
 	DWORD				dwRS[256];		// Renderstates
 	DWORD				dwTSS[2][24];	// Texture-stage states
 	LPDIRECT3DTEXTURE2	lpTex[2];		// Texture (1 per stage)

 	DWORD				dwMaxTextureSize;	// Max texture size:
 											// clamped to 1024.

 } DGL_ctx;
 #endif // _USE_GLD3_WGL

 /*------------------------- Function Prototypes ---------------------------*/

 #ifdef  __cplusplus
 extern "C" {
 #endif

 HHOOK	hKeyHook;
 LRESULT CALLBACK dglKeyProc(int code,WPARAM wParam,LPARAM lParam);

 void		dglInitContextState();
 void		dglDeleteContextState();
 BOOL 		dglIsValidContext(HGLRC a);
 DGL_ctx*	dglGetContextAddress(const HGLRC a);
 HDC 		dglGetCurrentDC(void);
 HGLRC 		dglGetCurrentContext(void);
 HGLRC		dglCreateContext(HDC a, const DGL_pixelFormat *lpPF);
 BOOL		dglMakeCurrent(HDC a, HGLRC b);
 BOOL		dglDeleteContext(HGLRC a);
 BOOL		dglSwapBuffers(HDC hDC);

 #ifdef  __cplusplus
 }
 #endif

 #endif
	/****************************************************************************
	*
	* Mesa 3-D graphics library
	* Direct3D Driver Interface
	*
	* ========================================================================
	*
	* Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included
	* in all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
	* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	* SOFTWARE.
	*
	* ======================================================================
	*
	* Language: ANSI C
	* Environment: Windows 9x (Win32)
	*
	* Description: OpenGL context handling.
	*
	****************************************************************************/

	#ifndef __DGLCONTEXT_H
	#define __DGLCONTEXT_H

	// Disable compiler complaints about DLL linkage
	#pragma warning (disable:4273)

	// Macros to control compilation
	#ifndef STRICT
	#define STRICT
	#endif // STRICT
	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <GL\gl.h>

	#ifdef _USE_GLD3_WGL
	#include "dglmacros.h"
	#include "dglglobals.h"
	#include "pixpack.h"
	#include "ddlog.h"
	#include "dglpf.h"
	#include "context.h" // Mesa context
	#else
	#include <ddraw.h>
	#include <d3d.h>

	#include "dglmacros.h"
	#include "dglglobals.h"
	#include "pixpack.h"
	#include "ddlog.h"
	#include "dglpf.h"
	#include "d3dvertex.h"

	#include "DirectGL.h"

	#include "context.h" // Mesa context
	#include "vb.h" // Mesa vertex buffer
	#endif // _USE_GLD3_WGL

	/---------------------- Macros and type definitions ----------------------/

	// TODO: Use a list instead of this constant!
	#define DGL_MAX_CONTEXTS 32

	// Structure for describing an OpenGL context
	#ifdef _USE_GLD3_WGL
	typedef struct {
	BOOL bHasBeenCurrent;
	DGL_pixelFormat *lpPF;

	// Pointer to private driver data (this also contains the drawable).
	void *glPriv;

	// Mesa vars:
	GLcontext *glCtx; // The core Mesa context
	GLvisual *glVis; // Describes the color buffer
	GLframebuffer *glBuffer; // Ancillary buffers

	GLuint ClearIndex;
	GLuint CurrentIndex;
	GLubyte ClearColor[4];
	GLubyte CurrentColor[4];

	BOOL EmulateSingle; // Emulate single-buffering
	BOOL bDoubleBuffer;
	BOOL bDepthBuffer;

	// Shared driver vars:
	BOOL bAllocated;
	BOOL bFullscreen; // Is this a fullscreen context?
	BOOL bSceneStarted; // Has a lpDev->BeginScene been issued?
	BOOL bCanRender; // Flag: states whether rendering is OK
	BOOL bFrameStarted; // Has frame update started at all?
	BOOL bStencil; // TRUE if this context has stencil
	BOOL bGDIEraseBkgnd; // GDI Erase Background command

	// Window information
	HWND hWnd; // Window handle
	HDC hDC; // Windows' Device Context of the window
	DWORD dwWidth; // Window width
	DWORD dwHeight; // Window height
	DWORD dwBPP; // Window bits-per-pixel;
	RECT rcScreenRect; // Screen rectangle
	DWORD dwModeWidth; // Display mode width
	DWORD dwModeHeight; // Display mode height
	float dvClipX;
	float dvClipY;
	LONG lpfnWndProc; // window message handler function

	} DGL_ctx;

	#define GLD_context DGL_ctx
	#define GLD_GET_CONTEXT(c) (GLD_context*)(c)->DriverCtx

	#else // _USE_GLD3_WGL

	typedef struct {
	BOOL bHasBeenCurrent;
	DGL_pixelFormat *lpPF;
	//
	// Mesa context vars:
	//
	GLcontext *glCtx; // The core Mesa context
	GLvisual *glVis; // Describes the color buffer
	GLframebuffer *glBuffer; // Ancillary buffers

	GLuint ClearIndex;
	GLuint CurrentIndex;
	GLubyte ClearColor[4];
	GLubyte CurrentColor[4];

	BOOL EmulateSingle; // Emulate single-buffering
	BOOL bDoubleBuffer;
	BOOL bDepthBuffer;
	int iZBufferPF; // Index of Zbuffer pixel format

	// Vertex buffer: one-to-one correlation with Mesa's vertex buffer.
	// This will be filled by our setup function (see d3dvsetup.c)
	DGL_TLvertex gWin[VB_SIZE]; // Transformed and lit vertices
	// DGL_Lvertex gObj[VB_SIZE]; // Lit vertices in object coordinates.

	// Indices for DrawIndexedPrimitive.
	// Clipped quads are drawn seperately, so use VB_SIZE.
	// 6 indices are needed to make 2 triangles for each possible quad
	// WORD wIndices[(VB_SIZE / 4) * 6];
	WORD wIndices[32768];

	//
	// Device driver vars:
	//
	BOOL bAllocated;
	BOOL bFullscreen; // Is this a fullscreen context?
	BOOL bSceneStarted; // Has a lpDev->BeginScene been issued?
	BOOL bCanRender; // Flag: states whether rendering is OK
	BOOL bFrameStarted; // Has frame update started at all?

	// DirectX COM interfaces, postfixed with the interface number
	IDirectDraw *lpDD1;
	IDirectDraw4 *lpDD4;
	IDirect3D3 *lpD3D3;
	IDirect3DDevice3 *lpDev3;
	IDirect3DViewport3 *lpViewport3;
	IDirectDrawSurface4 *lpFront4;
	IDirectDrawSurface4 *lpBack4;
	IDirectDrawSurface4 *lpDepth4;

	// Vertex buffers
	BOOL bD3DPipeline; // True if using D3D geometry pipeline
	IDirect3DVertexBuffer *m_vbuf; // Unprocessed vertices
	IDirect3DVertexBuffer *m_pvbuf; // Processed vertices ready to be rendered

	D3DTEXTUREOP ColorOp[MAX_TEXTURE_UNITS]; // Used for re-enabling texturing
	D3DTEXTUREOP AlphaOp[MAX_TEXTURE_UNITS]; // Used for re-enabling texturing
	struct gl_texture_object *tObj[MAX_TEXTURE_UNITS];

	DDCAPS ddCaps; // DirectDraw caps
	D3DDEVICEDESC D3DDevDesc; // Direct3D Device description

	DDPIXELFORMAT ddpfRender; // Pixel format of the render buffer
	DDPIXELFORMAT ddpfDepth; // Pixel format of the depth buffer

	BOOL bStencil; // TRUE is this context has stencil

	PX_packFunc fnPackFunc; // Pixel packing function for SW
	PX_unpackFunc fnUnpackFunc; // Pixel unpacking function for SW
	PX_packSpanFunc fnPackSpanFunc; // Pixel span packer

	D3DVIEWPORT2 d3dViewport; // D3D Viewport object

	D3DCULL cullmode; // Direct3D cull mode
	D3DCOLOR curcolor; // Current color
	DWORD dwColorPF; // Current color, in format of target surface
	D3DCOLOR d3dClearColor; // Clear color
	D3DCOLOR ConstantColor; // For flat shading
	DWORD dwClearColorPF; // Clear color, in format of target surface
	BOOL bGDIEraseBkgnd; // GDI Erase Background command

	// Primitive caches
	// DGL_vertex LineCache[DGL_MAX_LINE_VERTS];
	// DGL_vertex TriCache[DGL_MAX_TRI_VERTS];
	// DWORD dwNextLineVert;
	// DWORD dwNextTriVert;

	// Window information
	HWND hWnd; // Window handle
	HDC hDC; // Windows' Device Context of the window
	DWORD dwWidth; // Window width
	DWORD dwHeight; // Window height
	DWORD dwBPP; // Window bits-per-pixel;
	RECT rcScreenRect; // Screen rectangle
	DWORD dwModeWidth; // Display mode width
	DWORD dwModeHeight; // Display mode height
	float dvClipX;
	float dvClipY;
	LONG lpfnWndProc; // window message handler function

	// Shared texture palette
	IDirectDrawPalette *lpGlobalPalette;

	// Usage counters.
	// One of these counters will be incremented when we choose
	// between hardware and software rendering functions.
	// DWORD dwHWUsageCount; // Hardware usage count
	// DWORD dwSWUsageCount; // Software usage count

	// Texture state flags.
	// BOOL m_texturing; // TRUE is texturing
	// BOOL m_mtex; // TRUE if multitexture
	// BOOL m_texHandleValid; // TRUE if tex state valid

	// Renderstate caches to ensure no redundant state changes
	DWORD dwRS[256]; // Renderstates
	DWORD dwTSS[2][24]; // Texture-stage states
	LPDIRECT3DTEXTURE2 lpTex[2]; // Texture (1 per stage)

	DWORD dwMaxTextureSize; // Max texture size:
	// clamped to 1024.

	} DGL_ctx;
	#endif // _USE_GLD3_WGL

	/------------------------- Function Prototypes ---------------------------/

	#ifdef __cplusplus
	extern "C" {
	#endif

	HHOOK hKeyHook;
	LRESULT CALLBACK dglKeyProc(int code,WPARAM wParam,LPARAM lParam);

	void dglInitContextState();
	void dglDeleteContextState();
	BOOL dglIsValidContext(HGLRC a);
	DGL_ctx* dglGetContextAddress(const HGLRC a);
	HDC dglGetCurrentDC(void);
	HGLRC dglGetCurrentContext(void);
	HGLRC dglCreateContext(HDC a, const DGL_pixelFormat *lpPF);
	BOOL dglMakeCurrent(HDC a, HGLRC b);
	BOOL dglDeleteContext(HGLRC a);
	BOOL dglSwapBuffers(HDC hDC);

	#ifdef __cplusplus
	}
	#endif

	#endif