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/* -*- 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 <gareth@valinux.com>
* Leif Delgass <ldelgass@retinalburn.net>
* Jos�Fonseca <j_r_fonseca@yahoo.co.uk>
*/
#ifndef __MACH64_CONTEXT_H__
#define __MACH64_CONTEXT_H__
#include "dri_util.h"
#include "drm.h"
#include "mach64_drm.h"
#include "main/mtypes.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_LOGICOP 0x0020
#define MACH64_FALLBACK_SEP_SPECULAR 0x0040
#define MACH64_FALLBACK_BLEND_EQ 0x0080
#define MACH64_FALLBACK_BLEND_FUNC 0x0100
#define MACH64_FALLBACK_DISABLE 0x0200
#define CARD32 GLuint /* KW: For building in mesa tree */
#if MACH64_NATIVE_VTXFMT
/* The vertex structures.
*/
/* 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 * );
struct mach64_texture_object {
driTextureObject base;
GLuint bufAddr;
GLint heap; /* same as base.heap->heapId */
/* For communicating values from mach64AllocTexObj(), mach64SetTexImages()
* to mach64UpdateTextureUnit(). Alternately, we can use the tObj values or
* set the context registers directly.
*/
GLint widthLog2;
GLint heightLog2;
GLint maxLog2;
GLint hasAlpha;
GLint textureFormat;
GLboolean BilinearMin;
GLboolean BilinearMag;
GLboolean ClampS;
GLboolean ClampT;
};
typedef struct mach64_texture_object mach64TexObj, *mach64TexObjPtr;
struct mach64_context {
struct gl_context *glCtx;
/* Driver and hardware state management
*/
GLuint new_state;
GLuint dirty; /* Hardware state to be updated */
drm_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;
GLubyte *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];
GLint firstTexHeap, lastTexHeap;
driTexHeap *texture_heaps[MACH64_NR_TEX_HEAPS];
driTextureObject swapped;
/* 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 */
drm_clip_rect_t *pClipRects;
GLint scissor;
drm_clip_rect_t ScissorRect; /* Current software scissor */
/* Mirrors of some DRI state
*/
__DRIcontext *driContext; /* DRI context */
__DRIscreen *driScreen; /* DRI screen */
__DRIdrawable *driDrawable; /* DRI drawable bound to this ctx */
unsigned int lastStamp; /* mirror driDrawable->lastStamp */
drm_context_t hHWContext;
drm_hw_lock_t *driHwLock;
int driFd;
mach64ScreenPtr mach64Screen; /* Screen private DRI data */
drm_mach64_sarea_t *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 do_irqs;
/* Configuration cache
*/
driOptionCache optionCache;
};
#define MACH64_CONTEXT(ctx) ((mach64ContextPtr)(ctx->DriverCtx))
extern GLboolean mach64CreateContext( gl_api api,
const struct gl_config *glVisual,
__DRIcontext *driContextPriv,
void *sharedContextPrivate );
extern void mach64DestroyContext( __DRIcontext * );
extern GLboolean mach64MakeCurrent( __DRIcontext *driContextPriv,
__DRIdrawable *driDrawPriv,
__DRIdrawable *driReadPriv );
extern GLboolean mach64UnbindContext( __DRIcontext *driContextPriv );
/* ================================================================
* Byte ordering
*/
#if MESA_LITTLE_ENDIAN == 1
#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
#if defined(__OpenBSD__) || defined(__NetBSD__)
#include <machine/endian.h>
#define bswap_32 bswap32
#else
#include <byteswap.h>
#endif
#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
#define DEBUG_VERBOSE_FALLBACK 0x200
#endif /* __MACH64_CONTEXT_H__ */
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