add the i810 driver - no kernel driver yet

(build tested, but not physically tested)

1 files changed, 256 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i810/i810context.h b/src/mesa/drivers/dri/i810/i810context.h
new file mode 100644
index 00000000000..b24bd7ca343
--- /dev/null
+++ b/src/mesa/drivers/dri/i810/i810context.h
@@ -0,0 +1,256 @@
+/*
+ * GLX Hardware Device Driver for Intel i810
+ * Copyright (C) 1999 Keith Whitwell
+ *
+ * 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
+ * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS 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: xc/lib/GL/mesa/src/drv/i810/i810context.h,v 1.9 2002/12/16 16:18:51 dawes Exp $ */
+
+#ifndef I810CONTEXT_INC
+#define I810CONTEXT_INC
+
+typedef struct i810_context_t i810Context;
+typedef struct i810_context_t *i810ContextPtr;
+typedef struct i810_texture_object_t *i810TextureObjectPtr;
+
+#include "mtypes.h"
+#include "mm.h"
+
+#include "i810screen.h"
+#include "i810tex.h"
+
+
+/* Reasons to disable hardware rasterization. 
+ */
+#define I810_FALLBACK_TEXTURE        0x1
+#define I810_FALLBACK_DRAW_BUFFER    0x2
+#define I810_FALLBACK_READ_BUFFER    0x4
+#define I810_FALLBACK_COLORMASK      0x8  
+#define I810_FALLBACK_SPECULAR       0x20 
+#define I810_FALLBACK_LOGICOP        0x40
+#define I810_FALLBACK_RENDERMODE     0x80
+#define I810_FALLBACK_STENCIL        0x100
+#define I810_FALLBACK_BLEND_EQ       0x200
+#define I810_FALLBACK_BLEND_FUNC     0x400
+
+
+#ifndef PCI_CHIP_I810				 
+#define PCI_CHIP_I810              0x7121
+#define PCI_CHIP_I810_DC100        0x7123
+#define PCI_CHIP_I810_E            0x7125 
+#define PCI_CHIP_I815              0x1132 
+#endif
+
+#define IS_I810(imesa) (imesa->i810Screen->deviceID == PCI_CHIP_I810 ||	\
+			imesa->i810Screen->deviceID == PCI_CHIP_I810_DC100 || \
+			imesa->i810Screen->deviceID == PCI_CHIP_I810_E)
+#define IS_I815(imesa) (imesa->i810Screen->deviceID == PCI_CHIP_I815)
+
+
+#define I810_UPLOAD_TEX(i) (I810_UPLOAD_TEX0<<(i))
+
+/* Use the templated vertex formats:
+ */
+#define TAG(x) i810##x
+#include "tnl_dd/t_dd_vertex.h"
+#undef TAG
+
+typedef void (*i810_tri_func)( i810ContextPtr, i810Vertex *, i810Vertex *,
+			       i810Vertex * );
+typedef void (*i810_line_func)( i810ContextPtr, i810Vertex *, i810Vertex * );
+typedef void (*i810_point_func)( i810ContextPtr, i810Vertex * );
+
+struct i810_context_t {
+   GLint refcount;   
+   GLcontext *glCtx;
+
+   /* Texture object bookkeeping
+    */
+   unsigned              nr_heaps;
+   driTexHeap          * texture_heaps[1];
+   driTextureObject      swapped;
+
+   struct i810_texture_object_t *CurrentTexObj[2];
+
+
+   /* Bit flag to keep track of fallbacks.
+    */
+   GLuint Fallback;
+
+   /* Temporaries for translating away float colors:
+    */
+   struct gl_client_array UbyteColor;
+   struct gl_client_array UbyteSecondaryColor;
+
+   /* State for i810vb.c and i810tris.c.
+    */
+   GLuint new_state;		/* _NEW_* flags */
+   GLuint SetupNewInputs;
+   GLuint SetupIndex;
+   GLuint RenderIndex;
+   GLmatrix ViewportMatrix;
+   GLenum render_primitive;
+   GLenum reduced_primitive;
+   GLuint hw_primitive;
+   GLubyte *verts;
+
+   drmBufPtr  vertex_buffer;
+   char *vertex_addr;
+   GLuint vertex_low;
+   GLuint vertex_high;
+   GLuint vertex_last_prim;
+   
+   GLboolean upload_cliprects;
+
+
+   /* Fallback rasterization functions 
+    */
+   i810_point_func draw_point;
+   i810_line_func draw_line;
+   i810_tri_func draw_tri;
+
+   /* Hardware state 
+    */
+   GLuint dirty;		/* I810_UPLOAD_* */
+   GLuint Setup[I810_CTX_SETUP_SIZE];
+   GLuint BufferSetup[I810_DEST_SETUP_SIZE];
+   int vertex_size;
+   int vertex_stride_shift;
+   unsigned int lastStamp;
+   GLboolean stipple_in_hw;
+
+   GLenum TexEnvImageFmt[2];
+
+   /* State which can't be computed completely on the fly:
+    */
+   GLuint LcsCullMode;
+   GLuint LcsLineWidth;
+   GLuint LcsPointSize;
+
+   /* Funny mesa mirrors
+    */
+   GLushort ClearColor;
+
+   /* DRI stuff
+    */
+   GLuint needClip;
+   GLframebuffer *glBuffer;
+   GLboolean doPageFlip;
+
+   /* These refer to the current draw (front vs. back) buffer:
+    */
+   char *drawMap;		/* draw buffer address in virtual mem */
+   char *readMap;	
+   int drawX;			/* origin of drawable in draw buffer */
+   int drawY;
+   GLuint numClipRects;		/* cliprects for that buffer */
+   XF86DRIClipRectPtr pClipRects;
+
+   int lastSwap;
+   int texAge;
+   int ctxAge;
+   int dirtyAge;
+  
+ 
+   GLboolean scissor;
+   XF86DRIClipRectRec draw_rect;
+   XF86DRIClipRectRec scissor_rect;
+
+   drmContext hHWContext;
+   drmLock *driHwLock;
+   int driFd;
+
+   __DRIdrawablePrivate *driDrawable;
+   __DRIscreenPrivate *driScreen;
+   i810ScreenPrivate *i810Screen; 
+   I810SAREAPtr sarea;
+};
+
+
+#define I810_CONTEXT(ctx)    ((i810ContextPtr)(ctx->DriverCtx))
+
+#define GET_DISPATCH_AGE( imesa ) imesa->sarea->last_dispatch
+#define GET_ENQUEUE_AGE( imesa ) imesa->sarea->last_enqueue
+
+
+/* Lock the hardware and validate our state.  
+ */
+#define LOCK_HARDWARE( imesa )				\
+  do {							\
+    char __ret=0;					\
+    DRM_CAS(imesa->driHwLock, imesa->hHWContext,	\
+	    (DRM_LOCK_HELD|imesa->hHWContext), __ret);	\
+    if (__ret)						\
+        i810GetLock( imesa, 0 );			\
+  } while (0)
+
+
+
+/* Release the kernel lock.
+ */
+#define UNLOCK_HARDWARE(imesa)					\
+    DRM_UNLOCK(imesa->driFd, imesa->driHwLock, imesa->hHWContext);	
+
+
+/* This is the wrong way to do it, I'm sure.  Otherwise the drm
+ * bitches that I've already got the heavyweight lock.  At worst,
+ * this is 3 ioctls.  The best solution probably only gets me down 
+ * to 2 ioctls in the worst case.
+ */
+#define LOCK_HARDWARE_QUIESCENT( imesa ) do {	\
+   LOCK_HARDWARE( imesa );			\
+   i810RegetLockQuiescent( imesa );		\
+} while(0)
+
+
+extern void i810GetLock( i810ContextPtr imesa, GLuint flags );
+extern void i810EmitHwStateLocked( i810ContextPtr imesa );
+extern void i810EmitScissorValues( i810ContextPtr imesa, int box_nr, int emit );
+extern void i810EmitDrawingRectangle( i810ContextPtr imesa );
+extern void i810XMesaSetBackClipRects( i810ContextPtr imesa );
+extern void i810XMesaSetFrontClipRects( i810ContextPtr imesa );
+
+#define SUBPIXEL_X -.5
+#define SUBPIXEL_Y -.5
+
+/* ================================================================
+ * Debugging:
+ */
+#define DO_DEBUG		1
+#if DO_DEBUG
+extern int I810_DEBUG;
+#else
+#define I810_DEBUG		0
+#endif
+
+#define DEBUG_TEXTURE	0x1
+#define DEBUG_STATE	0x2
+#define DEBUG_IOCTL	0x4
+#define DEBUG_PRIMS	0x8
+#define DEBUG_VERTS	0x10
+#define DEBUG_FALLBACKS	0x20
+#define DEBUG_VERBOSE	0x40
+#define DEBUG_DRI       0x80
+#define DEBUG_DMA       0x100
+#define DEBUG_SANITY    0x200
+#define DEBUG_SYNC      0x400
+#define DEBUG_SLEEP     0x800
+
+#endif