Initial mach64 driver import for DRI mach64-0-0-6 branch,

this compiles but I doubt it works but it is a better starting point
than the branch

1 files changed, 431 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/mach64/mach64_context.h b/src/mesa/drivers/dri/mach64/mach64_context.h
new file mode 100644
index 00000000000..508b4875ce3
--- /dev/null
+++ b/src/mesa/drivers/dri/mach64/mach64_context.h
@@ -0,0 +1,431 @@
+/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */
+/*
+ * Copyright 2000 Gareth Hughes
+ * 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 (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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * GARETH HUGHES 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.
+ */
+
+/*
+ * Authors:
+ *	Gareth Hughes <[email protected]>
+ *	Leif Delgass <[email protected]>
+ *	Jos� Fonseca <[email protected]>
+ */
+
+#ifndef __MACH64_CONTEXT_H__
+#define __MACH64_CONTEXT_H__
+
+#ifdef GLX_DIRECT_RENDERING
+
+#include "dri_util.h"
+
+#include "xf86drm.h"
+#include "mach64_common.h"
+
+#include "mtypes.h"
+#include "mm.h"
+
+#include "mach64_reg.h"
+
+#include "texmem.h"
+
+struct mach64_context;
+typedef struct mach64_context mach64ContextRec;
+typedef struct mach64_context *mach64ContextPtr;
+
+#include "mach64_lock.h"
+#include "mach64_screen.h"
+
+/* Experimental driver options */
+#define MACH64_CLIENT_STATE_EMITS       0
+
+/* Performace monitoring */
+#define ENABLE_PERF_BOXES               1
+
+/* Native vertex format */
+#define MACH64_NATIVE_VTXFMT		1
+
+/* Flags for what context state needs to be updated:
+ */
+#define MACH64_NEW_ALPHA		0x0001
+#define MACH64_NEW_DEPTH		0x0002
+#define MACH64_NEW_FOG			0x0004
+#define MACH64_NEW_CLIP			0x0008
+#define MACH64_NEW_CULL			0x0010
+#define MACH64_NEW_MASKS		0x0020
+#define MACH64_NEW_RENDER_UNUSED	0x0040
+#define MACH64_NEW_WINDOW		0x0080
+#define MACH64_NEW_TEXTURE		0x0100
+#define MACH64_NEW_CONTEXT		0x0200
+#define MACH64_NEW_ALL			0x03ff
+
+/* Flags for software fallback cases:
+ */
+#define MACH64_FALLBACK_TEXTURE		0x0001
+#define MACH64_FALLBACK_DRAW_BUFFER	0x0002
+#define MACH64_FALLBACK_READ_BUFFER	0x0004
+#define MACH64_FALLBACK_STENCIL		0x0008
+#define MACH64_FALLBACK_RENDER_MODE	0x0010
+#define MACH64_FALLBACK_MULTIDRAW	0x0020
+#define MACH64_FALLBACK_LOGICOP		0x0040
+#define MACH64_FALLBACK_SEP_SPECULAR	0x0080
+#define MACH64_FALLBACK_BLEND_EQ	0x0100
+#define MACH64_FALLBACK_BLEND_FUNC	0x0200
+
+#if MACH64_NATIVE_VTXFMT
+
+/* The vertex structures.
+ */
+
+#if 0
+/* This isn't actually necessary since all accesses to the vertex
+ * structure must be made through the LE32_* macros.
+ */
+
+typedef struct {
+   GLubyte	blue;
+   GLubyte	green;
+   GLubyte	red;
+   GLubyte	alpha;
+} mach64_color_t;
+
+typedef struct {
+   GLfloat u1, v1, w1;			/* Texture 1 coordinates */
+   GLfloat u0, v0, w0;			/* Texture 0 coordinates */
+   mach64_color_t specular;		/* Specular color */
+   GLuint z;				/* Depth coordinate */
+   mach64_color_t color;		/* Diffuse color */
+   GLushort y, x;			/* Coordinates in screen space */
+} mach64_vertex;
+#endif
+
+/* The size of this union is not of relevence:
+ */
+union mach64_vertex_t {
+   GLfloat f[16];
+   GLuint ui[16];
+   GLushort us2[16][2];
+   GLubyte ub4[16][4];
+};
+
+typedef union mach64_vertex_t mach64Vertex, *mach64VertexPtr;
+
+#else
+
+/* Use the templated vertex format:
+ */
+#define TAG(x) mach64##x
+#include "tnl_dd/t_dd_vertex.h"
+#undef TAG
+
+#endif /* MACH64_NATIVE_VTXFMT */
+
+/* Subpixel offsets for window coordinates:
+ * These are enough to fix most glean tests except polygonOffset.
+ * There are also still some gaps that show in e.g. the tunnel Mesa demo
+ * or the lament xscreensaver hack.
+ */
+#define SUBPIXEL_X	(0.0125F)
+#define SUBPIXEL_Y	(0.15F)
+
+
+typedef void (*mach64_tri_func)( mach64ContextPtr,
+				   mach64Vertex *,
+				   mach64Vertex *,
+				   mach64Vertex * );
+
+typedef void (*mach64_line_func)( mach64ContextPtr,
+				    mach64Vertex *,
+				    mach64Vertex * );
+
+typedef void (*mach64_point_func)( mach64ContextPtr,
+				     mach64Vertex * );
+
+#if TEXMEM
+struct mach64_texture_object {
+   driTextureObject   base;
+
+   GLuint offset;
+
+   GLuint dirty;
+   GLuint age;
+
+   GLint widthLog2;
+   GLint heightLog2;
+   GLint maxLog2;
+
+   GLint hasAlpha;
+   GLint textureFormat;
+
+   /* Have to keep these separate due to how they are programmed.
+    * FIXME: Why don't we just use the tObj values?
+    */
+   GLboolean BilinearMin;
+   GLboolean BilinearMag;
+   GLboolean ClampS;
+   GLboolean ClampT;
+};
+#else
+struct mach64_texture_object {
+   struct mach64_texture_object *next;
+   struct mach64_texture_object *prev;
+   struct gl_texture_object *tObj;
+
+   PMemBlock memBlock;
+   GLuint offset;
+   GLuint size;
+
+   GLuint dirty;
+   GLuint age;
+
+   GLint bound;
+   GLint heap;
+
+   GLint widthLog2;
+   GLint heightLog2;
+   GLint maxLog2;
+
+   GLint hasAlpha;
+   GLint textureFormat;
+
+   /* Have to keep these separate due to how they are programmed.
+    * FIXME: Why don't we just use the tObj values?
+    */
+   GLboolean BilinearMin;
+   GLboolean BilinearMag;
+   GLboolean ClampS;
+   GLboolean ClampT;
+};
+#endif
+
+typedef struct mach64_texture_object mach64TexObj, *mach64TexObjPtr;
+
+
+struct mach64_context {
+   GLcontext *glCtx;
+
+   /* Driver and hardware state management
+    */
+   GLuint new_state;
+   GLuint dirty;			/* Hardware state to be updated */
+   mach64_context_regs_t setup;
+
+   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;
+   char *verts;		
+
+   CARD32 Color;			/* Current draw color */
+   CARD32 ClearColor;			/* Color used to clear color buffer */
+   CARD32 ClearDepth;			/* Value used to clear depth buffer */
+
+   /* Map GL texture units onto hardware
+    */
+   GLint multitex;
+   GLint tmu_source[2];
+   GLint tex_dest[2];
+
+   /* Texture object bookkeeping
+    */
+   mach64TexObjPtr CurrentTexObj[2];
+#if TEXMEM
+   unsigned nr_heaps;
+   driTexHeap * texture_heaps[ R128_NR_TEX_HEAPS ];
+   driTextureObject swapped;
+#else
+   mach64TexObj TexObjList[MACH64_NR_TEX_HEAPS];
+   mach64TexObj SwappedOut;
+   memHeap_t *texHeap[MACH64_NR_TEX_HEAPS];
+   GLuint lastTexAge[MACH64_NR_TEX_HEAPS];
+   GLint firstTexHeap, lastTexHeap;
+#endif
+
+   /* Fallback rasterization functions
+    */
+   mach64_point_func draw_point;
+   mach64_line_func draw_line;
+   mach64_tri_func draw_tri;
+
+   /* Culling */
+   GLfloat backface_sign;
+
+   /* DMA buffers
+    */
+   void *vert_buf;
+   size_t vert_total;
+   unsigned vert_used;
+
+   GLuint hw_primitive;
+   GLenum render_primitive;
+
+   /* Visual, drawable, cliprect and scissor information
+    */
+   GLint drawOffset, drawPitch;
+   GLint drawX, drawY;                  /* origin of drawable in draw buffer */
+   GLint readOffset, readPitch;
+
+   GLuint numClipRects;			/* Cliprects for the draw buffer */
+   XF86DRIClipRectPtr pClipRects;
+
+   GLint scissor;
+   XF86DRIClipRectRec ScissorRect;	/* Current software scissor */
+
+   /* 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;
+   int driFd;
+
+   mach64ScreenPtr mach64Screen;	/* Screen private DRI data */
+   ATISAREAPrivPtr sarea;		/* Private SAREA data */
+
+   GLuint hardwareWentIdle;
+
+#if ENABLE_PERF_BOXES
+   /* Performance counters
+    */
+   GLuint boxes;			/* Draw performance boxes */
+   GLuint c_clears;
+   GLuint c_drawWaits;
+   GLuint c_textureSwaps;
+   GLuint c_textureBytes;
+   GLuint c_agpTextureBytes;
+   GLuint c_texsrc_agp;
+   GLuint c_texsrc_card;
+   GLuint c_vertexBuffers;
+#endif
+
+   /* VBI
+    */
+   GLuint vbl_seq;
+   GLuint vblank_flags;
+   GLuint do_irqs;
+
+   /* Configuration cache
+    */
+   driOptionCache optionCache;
+};
+
+#define MACH64_CONTEXT(ctx)		((mach64ContextPtr)(ctx->DriverCtx))
+
+
+extern GLboolean mach64CreateContext( const __GLcontextModes *glVisual,
+				      __DRIcontextPrivate *driContextPriv,
+                                      void *sharedContextPrivate );
+
+extern void mach64DestroyContext( __DRIcontextPrivate * );
+
+extern GLboolean mach64MakeCurrent( __DRIcontextPrivate *driContextPriv,
+                                    __DRIdrawablePrivate *driDrawPriv,
+                                    __DRIdrawablePrivate *driReadPriv );
+
+extern GLboolean mach64UnbindContext( __DRIcontextPrivate *driContextPriv );
+
+/* ================================================================
+ * Byte ordering
+ */
+#include "X11/Xarch.h"
+
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+#define LE32_IN( x )		( *(GLuint *)(x) )
+#define LE32_IN_FLOAT( x )	( *(GLfloat *)(x) )
+#define LE32_OUT( x, y )	do { *(GLuint *)(x) = (y); } while (0)
+#define LE32_OUT_FLOAT( x, y )	do { *(GLfloat *)(x) = (y); } while (0)
+#else
+#include <byteswap.h>
+#define LE32_IN( x )		bswap_32( *(GLuint *)(x) )
+#define LE32_IN_FLOAT( x )						\
+({									\
+   GLuint __tmp = bswap_32( *(GLuint *)(x) );				\
+   *(GLfloat *)&__tmp;							\
+})
+#define LE32_OUT( x, y )	do { *(GLuint *)(x) = bswap_32( y ); } while (0)
+#define LE32_OUT_FLOAT( x, y )						\
+do {									\
+   GLuint __tmp;							\
+   *(GLfloat *)&__tmp = (y);						\
+   *(GLuint *)(x) = bswap_32( __tmp );					\
+} while (0)
+#endif
+
+/* ================================================================
+ * DMA buffers
+ */
+
+#define DMALOCALS       CARD32 *buf=NULL; int requested=0; int outcount=0
+
+/* called while locked for interleaved client-side state emits */
+#define DMAGETPTR( dwords )					\
+do {								\
+   requested = (dwords);					\
+   buf = (CARD32 *)mach64AllocDmaLocked( mmesa, ((dwords)*4) );	\
+   outcount = 0;						\
+} while(0)
+
+#define DMAOUTREG( reg, val )				\
+do {							\
+   LE32_OUT( &buf[outcount++], ADRINDEX( reg ) );	\
+   LE32_OUT( &buf[outcount++], ( val ) );		\
+} while(0)
+
+#define DMAADVANCE()						\
+do {								\
+   if (outcount < requested) {					\
+      mmesa->vert_used -= (requested - outcount) * 4;	\
+   }								\
+} while(0)
+
+/* ================================================================
+ * Debugging:
+ */
+
+#define DO_DEBUG		1
+
+#if DO_DEBUG
+extern int MACH64_DEBUG;
+#else
+#define MACH64_DEBUG		0
+#endif
+
+#define DEBUG_ALWAYS_SYNC	0x001
+#define DEBUG_VERBOSE_API	0x002
+#define DEBUG_VERBOSE_MSG	0x004
+#define DEBUG_VERBOSE_LRU	0x008
+#define DEBUG_VERBOSE_DRI	0x010
+#define DEBUG_VERBOSE_IOCTL	0x020
+#define DEBUG_VERBOSE_PRIMS	0x040
+#define DEBUG_VERBOSE_COUNT	0x080
+#define DEBUG_NOWAIT		0x100
+#endif
+#endif /* __MACH64_CONTEXT_H__ */