Initial revision

1 files changed, 201 insertions, 0 deletions

diff --git a/src/r128_sarea.h b/src/r128_sarea.h
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+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/r128_sarea.h,v 1.7 2002/02/16 21:26:35 herrb Exp $ */
+/*
+ * Copyright 1999, 2000 ATI Technologies Inc., Markham, Ontario,
+ *                      Precision Insight, Inc., Cedar Park, Texas, and
+ *                      VA Linux Systems Inc., Fremont, California.
+ *
+ * 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, 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
+ * NON-INFRINGEMENT.  IN NO EVENT SHALL ATI, PRECISION INSIGHT, VA LINUX
+ * SYSTEMS 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.
+ */
+
+/*
+ * Authors:
+ *   Kevin E. Martin <martin@valinux.com>
+ *   Gareth Hughes <gareth@valinux.com>
+ *
+ */
+
+#ifndef _R128_SAREA_H_
+#define _R128_SAREA_H_
+
+#include "Xmd.h"
+
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the kernel file (r128_drm.h)
+ */
+#ifndef __R128_SAREA_DEFINES__
+#define __R128_SAREA_DEFINES__
+
+/* What needs to be changed for the current vertex buffer?
+ */
+#define R128_UPLOAD_CONTEXT		0x001
+#define R128_UPLOAD_SETUP		0x002
+#define R128_UPLOAD_TEX0		0x004
+#define R128_UPLOAD_TEX1		0x008
+#define R128_UPLOAD_TEX0IMAGES		0x010
+#define R128_UPLOAD_TEX1IMAGES		0x020
+#define R128_UPLOAD_CORE		0x040
+#define R128_UPLOAD_MASKS		0x080
+#define R128_UPLOAD_WINDOW		0x100
+#define R128_UPLOAD_CLIPRECTS		0x200	/* handled client-side */
+#define R128_REQUIRE_QUIESCENCE		0x400
+#define R128_UPLOAD_ALL			0x7ff
+
+#define R128_FRONT			0x1
+#define R128_BACK			0x2
+#define R128_DEPTH			0x4
+
+/* Primitive types
+ */
+#define R128_POINTS			0x1
+#define R128_LINES			0x2
+#define R128_LINE_STRIP			0x3
+#define R128_TRIANGLES			0x4
+#define R128_TRIANGLE_FAN		0x5
+#define R128_TRIANGLE_STRIP		0x6
+
+/* Vertex/indirect buffer size
+ */
+#define R128_BUFFER_SIZE		16384
+
+/* Byte offsets for indirect buffer data
+ */
+#define R128_INDEX_PRIM_OFFSET		20
+#define R128_HOSTDATA_BLIT_OFFSET	32
+
+/* Keep these small for testing
+ */
+#define R128_NR_SAREA_CLIPRECTS		12
+
+/* There are 2 heaps (local/AGP).  Each region within a heap is a
+ * minimum of 64k, and there are at most 64 of them per heap.
+ */
+#define R128_CARD_HEAP			0
+#define R128_AGP_HEAP			1
+#define R128_NR_TEX_HEAPS		2
+#define R128_NR_TEX_REGIONS		64
+#define R128_LOG_TEX_GRANULARITY	16
+
+#define R128_NR_CONTEXT_REGS		12
+
+#define R128_MAX_TEXTURE_LEVELS		11
+#define R128_MAX_TEXTURE_UNITS		2
+
+#endif /* __R128_SAREA_DEFINES__ */
+
+typedef struct {
+    /* Context state - can be written in one large chunk */
+    unsigned int dst_pitch_offset_c;
+    unsigned int dp_gui_master_cntl_c;
+    unsigned int sc_top_left_c;
+    unsigned int sc_bottom_right_c;
+    unsigned int z_offset_c;
+    unsigned int z_pitch_c;
+    unsigned int z_sten_cntl_c;
+    unsigned int tex_cntl_c;
+    unsigned int misc_3d_state_cntl_reg;
+    unsigned int texture_clr_cmp_clr_c;
+    unsigned int texture_clr_cmp_msk_c;
+    unsigned int fog_color_c;
+
+    /* Texture state */
+    unsigned int tex_size_pitch_c;
+    unsigned int constant_color_c;
+
+    /* Setup state */
+    unsigned int pm4_vc_fpu_setup;
+    unsigned int setup_cntl;
+
+    /* Mask state */
+    unsigned int dp_write_mask;
+    unsigned int sten_ref_mask_c;
+    unsigned int plane_3d_mask_c;
+
+    /* Window state */
+    unsigned int window_xy_offset;
+
+    /* Core state */
+    unsigned int scale_3d_cntl;
+} r128_context_regs_t;
+
+/* Setup registers for each texture unit
+ */
+typedef struct {
+    unsigned int tex_cntl;
+    unsigned int tex_combine_cntl;
+    unsigned int tex_size_pitch;
+    unsigned int tex_offset[R128_MAX_TEXTURE_LEVELS];
+    unsigned int tex_border_color;
+} r128_texture_regs_t;
+
+typedef struct {
+    unsigned char next, prev;	/* indices to form a circular LRU  */
+    unsigned char in_use;	/* owned by a client, or free? */
+    int age;			/* tracked by clients to update local LRU's */
+} r128_tex_region_t;
+
+typedef struct {
+    /* The channel for communication of state information to the kernel
+     * on firing a vertex buffer.
+     */
+    r128_context_regs_t	ContextState;
+    r128_texture_regs_t	TexState[R128_MAX_TEXTURE_UNITS];
+    unsigned int dirty;
+    unsigned int vertsize;
+    unsigned int vc_format;
+
+#ifdef XF86DRI
+    /* The current cliprects, or a subset thereof.
+     */
+    XF86DRIClipRectRec boxes[R128_NR_SAREA_CLIPRECTS];
+    unsigned int nbox;
+#endif
+
+    /* Counters for throttling of rendering clients.
+     */
+    unsigned int last_frame;
+    unsigned int last_dispatch;
+
+    /* Maintain an LRU of contiguous regions of texture space.  If you
+     * think you own a region of texture memory, and it has an age
+     * different to the one you set, then you are mistaken and it has
+     * been stolen by another client.  If global texAge hasn't changed,
+     * there is no need to walk the list.
+     *
+     * These regions can be used as a proxy for the fine-grained texture
+     * information of other clients - by maintaining them in the same
+     * lru which is used to age their own textures, clients have an
+     * approximate lru for the whole of global texture space, and can
+     * make informed decisions as to which areas to kick out.  There is
+     * no need to choose whether to kick out your own texture or someone
+     * else's - simply eject them all in LRU order.
+     */
+				/* Last elt is sentinal */
+    r128_tex_region_t texList[R128_NR_TEX_HEAPS][R128_NR_TEX_REGIONS+1];
+				/* last time texture was uploaded */
+    int texAge[R128_NR_TEX_HEAPS];
+
+    int ctxOwner;		/* last context to upload state */
+} R128SAREAPriv, *R128SAREAPrivPtr;
+
+#endif