add the SiS driver - no kernel driver yet

(build tested, but not physically tested)

1 files changed, 446 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/sis/sis_context.h b/src/mesa/drivers/dri/sis/sis_context.h
new file mode 100644
index 0000000000..c4248e5420
--- /dev/null
+++ b/src/mesa/drivers/dri/sis/sis_context.h
@@ -0,0 +1,446 @@
+/**************************************************************************
+
+Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
+Copyright 2003 Eric Anholt
+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
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, 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 (including the next
+paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ATI, PRECISION INSIGHT AND/OR THEIR SUPPLIERS 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.
+
+**************************************************************************/
+/* $XFree86$ */
+
+/*
+ * Authors:
+ *   Sung-Ching Lin <sclin@sis.com.tw>
+ *   Eric Anholt <anholt@FreeBSD.org>
+ */
+
+#ifndef _sis_ctx_h_
+#define _sis_ctx_h_
+
+#include "context.h"
+#include "dri_util.h"
+
+#include "sis_screen.h"
+#include "sis_common2.h"
+#include "sis_dri.h"
+
+/* for GLboolean */
+#include <GL/gl.h>
+
+#define PCI_CHIP_SIS300		0x0300
+#define PCI_CHIP_SIS630		0x6300
+#define PCI_CHIP_SIS540		0x5300
+
+#define NEW_TEXTURING		0x1
+#define NEW_TEXTURE_ENV		0x2
+
+/* Flags for software fallback cases:
+ */
+#define SIS_FALLBACK_TEXTURE		0x0001
+#define SIS_FALLBACK_TEXTURE0		0x0002
+#define SIS_FALLBACK_TEXTURE1		0x0004
+#define SIS_FALLBACK_TEXENV0		0x0008
+#define SIS_FALLBACK_TEXENV1		0x0010
+#define SIS_FALLBACK_DRAW_BUFFER	0x0020
+#define SIS_FALLBACK_STENCIL		0x0040
+#define SIS_FALLBACK_FORCE		0x8000
+
+/* Flags for hardware state that needs to be updated */
+#define GFLAG_ENABLESETTING		0x00000001
+#define GFLAG_ENABLESETTING2		0x00000002
+#define GFLAG_ZSETTING			0x00000004
+#define GFLAG_ALPHASETTING		0x00000008
+#define GFLAG_DESTSETTING		0x00000010
+#define GFLAG_LINESETTING		0x00000020
+#define GFLAG_STENCILSETTING		0x00000040
+#define GFLAG_FOGSETTING		0x00000080
+#define GFLAG_DSTBLEND			0x00000100
+#define GFLAG_CLIPPING			0x00000200
+#define CFLAG_TEXTURERESET		0x00000400
+#define GFLAG_TEXTUREMIPMAP		0x00000800
+#define GFLAG_TEXBORDERCOLOR		0x00001000
+#define GFLAG_TEXTUREADDRESS		0x00002000
+#define GFLAG_TEXTUREENV		0x00004000
+#define CFLAG_TEXTURERESET_1		0x00008000
+#define GFLAG_TEXTUREMIPMAP_1		0x00010000
+#define GFLAG_TEXBORDERCOLOR_1		0x00020000
+#define GFLAG_TEXTUREADDRESS_1		0x00040000
+#define GFLAG_TEXTUREENV_1		0x00080000
+#define GFLAG_ALL			0x000fffff
+
+#define GFLAG_TEXTURE_STATES (CFLAG_TEXTURERESET | GFLAG_TEXTUREMIPMAP | \
+			      GFLAG_TEXBORDERCOLOR | GFLAG_TEXTUREADDRESS | \
+			      CFLAG_TEXTURERESET_1 | GFLAG_TEXTUREMIPMAP_1 | \
+			      GFLAG_TEXBORDERCOLOR_1 | \
+			      GFLAG_TEXTUREADDRESS_1 | \
+			      GFLAG_TEXTUREENV | GFLAG_TEXTUREENV_1)
+
+
+#define GFLAG_RENDER_STATES  (GFLAG_ENABLESETTING | GFLAG_ENABLESETTING2 | \
+			      GFLAG_ZSETTING | GFLAG_ALPHASETTING | \
+			      GFLAG_DESTSETTING | GFLAG_FOGSETTING | \
+			      GFLAG_STENCILSETTING | GFLAG_DSTBLEND | \
+			      GFLAG_CLIPPING)
+
+/* Use the templated vertex format:
+ */
+#define TAG(x) sis##x
+#include "tnl_dd/t_dd_vertex.h"
+#undef TAG
+
+/* Subpixel offsets for window coordinates (triangles):
+ */
+#define SUBPIXEL_X  (-0.5F)
+#define SUBPIXEL_Y  (-0.5F)
+
+#define SIS_MAX_TEXTURE_LEVELS		11
+
+typedef struct {
+   GLbyte *Data;		/* Pointer to texture in offscreen */
+   GLuint memType;		/* VIDEO_TYPE or AGP_TYPE */
+   void *handle;		/* Handle for sisFree*() */
+   GLuint pitch;
+   GLuint size;
+} sisTexImage;
+
+typedef struct sis_tex_obj {
+   sisTexImage image[SIS_MAX_TEXTURE_LEVELS];	/* Image data for each mipmap
+						 * level */
+   GLenum format;		/* One of GL_ALPHA, GL_INTENSITY, GL_LUMINANCE,
+				 * GL_LUMINANCE_ALPHA, GL_RGB, GL_RGBA */
+   GLint hwformat;              /* One of the TEXEL_ defines */
+   GLint numImages;             /* Number of images loaded into .image */
+} sisTexObj, *sisTexObjPtr;
+
+/*
+ ** Device dependent context state
+ */
+typedef struct __GLSiSTextureRec
+{
+  GLint hwTextureSet;
+  GLint hwTextureMip;
+  GLint hwTextureClrHigh;
+  GLint hwTextureClrLow;
+  GLint hwTextureBorderColor;
+
+  GLint texOffset0;
+  GLint texOffset1;
+  GLint texOffset2;
+  GLint texOffset3;
+  GLint texOffset4;
+  GLint texOffset5;
+  GLint texOffset6;
+  GLint texOffset7;
+  GLint texOffset8;
+  GLint texOffset9;
+  GLint texOffset10;
+  GLint texOffset11;
+
+  GLint texPitch01;
+  GLint texPitch23;
+  GLint texPitch45;
+  GLint texPitch67;
+  GLint texPitch89;
+  GLint texPitch10;
+} __GLSiSTexture;
+
+typedef struct __GLSiSHardwareRec
+{
+  GLint hwCapEnable, hwCapEnable2;	/*  Enable Setting */
+
+  GLint hwOffsetZ, hwZ;		/* Z Setting */
+
+  GLint hwZBias, hwZMask;	/* Z Setting */
+
+  GLint hwAlpha;		/* Alpha Setting */
+
+  GLint hwDstSet, hwDstMask;	/* Destination Setting */
+
+  GLint hwOffsetDest;		/* Destination Setting */
+
+  GLint hwLinePattern;		/* Line Setting */
+
+  GLint hwFog;			/* Fog Setting */
+
+  GLint hwFogFar, hwFogInverse;	/* Fog Distance setting */
+
+  GLint hwFogDensity;		/* Fog factor & density */
+
+  GLint hwStSetting, hwStSetting2;	/* Stencil Setting */
+
+  GLint hwStOffset;		/* Stencil Setting */
+
+  GLint hwDstSrcBlend;		/* Blending mode Setting */
+
+  GLint clipTopBottom;		/* Clip for Top & Bottom */
+
+  GLint clipLeftRight;		/* Clip for Left & Right */
+
+  struct __GLSiSTextureRec texture[2];
+
+  GLint hwTexEnvColor;		/* Texture Blending Setting */
+
+  GLint hwTexBlendClr0;
+  GLint hwTexBlendClr1;
+  GLint hwTexBlendAlpha0;
+  GLint hwTexBlendAlpha1;
+
+}
+__GLSiSHardware;
+
+typedef struct sis_context sisContextRec;
+typedef struct sis_context *sisContextPtr;
+
+typedef void (*sis_quad_func)( sisContextPtr, 
+			       sisVertex *,
+			       sisVertex *,
+			       sisVertex *,
+			       sisVertex * );
+
+typedef void (*sis_tri_func)( sisContextPtr, 
+			      sisVertex *,
+			      sisVertex *,
+			      sisVertex * );
+
+typedef void (*sis_line_func)( sisContextPtr, 
+			       sisVertex *,
+			       sisVertex * );
+
+typedef void (*sis_point_func)( sisContextPtr,
+				sisVertex * );
+
+/* Device dependent context state */
+
+struct sis_context
+{
+  /* This must be first in this structure */
+  GLcontext *glCtx;
+
+  /* Temporaries for translating away float colors:
+   */
+  struct gl_client_array UbyteColor;
+  struct gl_client_array UbyteSecondaryColor;
+
+  GLuint NewGLState;
+  GLuint Fallback;
+  GLuint SetupIndex;
+  GLuint SetupNewInputs;
+  GLuint RenderIndex;
+  GLfloat hw_viewport[16];
+  GLfloat depth_scale;
+  GLuint vertex_size;
+  GLuint vertex_stride_shift;
+  GLuint vertex_format;
+  GLuint num_verts;
+  GLubyte *verts;		
+
+  unsigned int virtualX, virtualY;
+  unsigned int bytesPerPixel;
+  unsigned char *IOBase;
+  unsigned char *FbBase;
+  unsigned int displayWidth;
+  unsigned int frontOffset;
+  unsigned int frontPitch;
+
+  /* HW RGBA layout */
+  unsigned int redMask, greenMask, blueMask, alphaMask;
+  unsigned int colorFormat;
+
+  /* Z format */
+  unsigned int zFormat;
+
+  /* Clear patterns, 4 bytes */
+  unsigned int clearColorPattern;
+  unsigned int clearZStencilPattern;
+
+  /* Fallback rasterization functions 
+   */
+  sis_point_func draw_point;
+  sis_line_func draw_line;
+  sis_tri_func draw_tri;
+  sis_quad_func draw_quad;
+
+  GLuint hw_primitive;
+  GLenum raster_primitive;
+  GLenum render_primitive;
+
+  /* DRM fd */
+  int driFd;
+  
+  /* AGP Memory */
+  unsigned int AGPSize;
+  unsigned char *AGPBase;
+  unsigned int AGPAddr;
+  
+  /* AGP Command Buffer */
+  /* TODO: use Global variables */                                                                                
+
+  unsigned char *AGPCmdBufBase;
+  GLint AGPCmdBufAddr;
+  unsigned int AGPCmdBufSize;
+  GLint *pAGPCmdBufNext;
+  GLboolean AGPCmdModeEnabled;
+
+  /* register 0x89F4 */
+  GLint AGPParseSet;
+
+  /* register 0x89F8 */
+  GLint dwPrimitiveSet;
+
+  __GLSiSHardware prev, current;
+
+  int Chipset;
+
+  GLint drawableID;
+
+  /* SGRAM block write */
+  GLboolean blockWrite;
+
+  GLint GlobalFlag;
+
+  /* Stereo */
+  GLboolean isFullScreen;
+  GLboolean useStereo;
+  GLboolean stereoEnabled;
+  int stereo_drawIndex;
+  int stereo_drawSide;
+  GLboolean irqEnabled;
+
+  GLboolean clearTexCache;
+
+  GLuint TexStates[SIS_MAX_TEXTURES];
+  GLuint PrevTexFormat[SIS_MAX_TEXTURES];
+
+  int *CurrentQueueLenPtr;
+  unsigned int *FrameCountPtr;
+
+  /* Front/back/depth buffer info */
+  GLuint width, height;			/* size of buffers */
+  GLint bottom;				/* used for FLIP macro */
+  GLvoid *backbuffer;
+  unsigned int backOffset;
+  unsigned int backPitch;
+  GLvoid *depthbuffer;
+  unsigned int depthPitch;
+  void *zbFree, *bbFree;		/* Cookies for freeing buffers */
+  ENGPACKET zClearPacket, cbClearPacket;
+
+  /* Drawable, cliprect and scissor information
+   */
+  GLint drawOffset, drawPitch;
+  GLint readOffset, readPitch;
+
+  /* Mirrors of some DRI state
+   */
+  __DRIcontextPrivate	*driContext;	/* DRI context */
+  __DRIscreenPrivate	*driScreen;	/* DRI screen */
+  __DRIdrawablePrivate	*driDrawable;	/* DRI drawable bound to this ctx */
+
+  unsigned int lastStamp;	        /* mirror driDrawable->lastStamp */
+
+  drmContext hHWContext;
+  drmLock *driHwLock;
+
+  sisScreenPtr sisScreen;		/* Screen private DRI data */
+  SISSAREAPrivPtr sarea;		/* Private SAREA data */
+};
+
+#define SIS_CONTEXT(ctx)		((sisContextPtr)(ctx->DriverCtx))
+
+/* Macros */
+#define GET_IOBase(x) ((x)->IOBase)
+#define GET_FbBase(x) ((x)->FbBase)
+#define GET_AGPBase(x) ((x)->AGPBase)
+#define GET_DEPTH(x) ((x)->bytesPerPixel)
+#define GET_WIDTH(x) ((x)->displayWidth)
+#define GET_FbPos(smesa,x,y) (GET_FbBase(smesa)+(x)*GET_DEPTH(smesa)\
+                             +(y)*smesa->frontPitch)
+
+#define GET_ColorFormat(x) ((x)->colorFormat)
+
+#define GET_RMASK(x) ((x)->redMask)
+#define GET_GMASK(x) ((x)->greenMask)
+#define GET_BMASK(x) ((x)->blueMask)
+#define GET_AMASK(x) ((x)->alphaMask)
+#define Y_FLIP(Y)  (smesa->bottom - (Y))
+
+#define SISPACKCOLOR565( r, g, b )					\
+   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
+
+#define SISPACKCOLOR8888( r, g, b, a )					\
+   (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
+
+#define SIS_VERBOSE 0
+
+
+#define MMIO(reg, value) \
+{\
+  *(GLint *)(GET_IOBase(smesa) + (reg)) = value; \
+}
+
+#define MMIO_READ(reg) *(volatile GLint *)(smesa->IOBase + (reg))
+#define MMIO_READf(reg) *(volatile GLfloat *)(smesa->IOBase + (reg))
+
+#define mEndPrimitive()  \
+{       \
+  *(GET_IOBase(smesa) + REG_3D_EndPrimitiveList) = 0xFF;   \
+  *(GLint *)(GET_IOBase(smesa) + 0x8b60) = (GLint)(-1); \
+}
+
+/* Lock required */
+#define mWait3DCmdQueue(wLen)						\
+/* Update the mirrored queue pointer if it doesn't indicate enough space */ \
+if (*(smesa->CurrentQueueLenPtr) < (wLen)) {				\
+   *(smesa->CurrentQueueLenPtr) =					\
+      (*(GLint *)(GET_IOBase(smesa) + REG_QueueLen) & MASK_QueueLen) - 20; \
+   /* Spin and wait if the queue is actually too full */		\
+   if (*(smesa->CurrentQueueLenPtr) < (wLen))				\
+      WaitingFor3dIdle(smesa, wLen);					\
+   *(smesa->CurrentQueueLenPtr) -= wLen;				\
+}
+
+enum _sis_verbose {
+	VERBOSE_SIS_BUFFER  = 0x1,
+	VERBOSE_SIS_MEMORY  = 0x2
+};
+
+extern GLboolean sisCreateContext( const __GLcontextModes *glVisual,
+				   __DRIcontextPrivate *driContextPriv,
+                                   void *sharedContextPrivate );
+extern void sisDestroyContext( __DRIcontextPrivate * );
+
+extern GLboolean sisMakeCurrent( __DRIcontextPrivate *driContextPriv,
+                                  __DRIdrawablePrivate *driDrawPriv,
+                                  __DRIdrawablePrivate *driReadPriv );
+
+extern GLboolean sisUnbindContext( __DRIcontextPrivate *driContextPriv );
+
+void WaitEngIdle (sisContextPtr smesa);
+void Wait2DEngIdle (sisContextPtr smesa);
+void WaitingFor3dIdle(sisContextPtr smesa, int wLen);
+
+/* update to hw */
+extern void sis_update_texture_state( sisContextPtr smesa );
+extern void sis_update_render_state( sisContextPtr smesa );
+
+void sis_fatal_error (void);
+
+#endif