-/* $Id: t_context.h,v 1.29 2001/06/28 17:34:14 keithw Exp $ */
+/* $Id: t_context.h,v 1.44 2003/01/14 04:55:47 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 5.1
*
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2002 Brian Paul 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"),
* BRIAN PAUL 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.
- *
- * Author:
- * Keith Whitwell <keithw@valinux.com>
+ */
+
+/**
+ * \file t_context.h
+ * \brief TnL module datatypes and definitions.
+ * \author Keith Whitwell
*/
#ifndef _T_CONTEXT_H
/* Flags to be added to the primitive enum in VB->Primitive.
*/
-#define PRIM_MODE_MASK 0xff /* Extract the actual primitive */
-#define PRIM_BEGIN 0x100 /* The prim starts here (not wrapped) */
-#define PRIM_END 0x200 /* The prim ends in this VB (does not wrap) */
-#define PRIM_PARITY 0x400 /* The prim wrapped on an odd number of verts */
-#define PRIM_LAST 0x800 /* No more prims in the VB */
+#define PRIM_MODE_MASK 0xff /* Extract the actual primitive */
+#define PRIM_BEGIN 0x100 /* The prim starts here (not wrapped) */
+#define PRIM_END 0x200 /* The prim ends in this VB (does not wrap) */
+#define PRIM_PARITY 0x400 /* The prim wrapped on an odd number of verts */
+#define PRIM_LAST 0x800 /* No more prims in the VB */
-/* Flags that describe the inputs and outputs of pipeline stages, and
- * the contents of a vertex-cassette.
- *
- * 5 spare flags, rearrangement of eval flags can secure at least 3
- * more.
+/**
+ * Flags that describe the inputs and outputs of pipeline stages, and
+ * the contents of a vertex-cassette. We reuse the VERT_BIT_* flags
+ * defined in mtypes.h and add a bunch of new ones.
*/
-#define VERT_OBJ _NEW_ARRAY_VERTEX
-#define VERT_RGBA _NEW_ARRAY_COLOR
-#define VERT_NORM _NEW_ARRAY_NORMAL
-#define VERT_INDEX _NEW_ARRAY_INDEX
-#define VERT_EDGE _NEW_ARRAY_EDGEFLAG
-#define VERT_SPEC_RGB _NEW_ARRAY_SECONDARYCOLOR
-#define VERT_FOG_COORD _NEW_ARRAY_FOGCOORD
-#define VERT_TEX0 _NEW_ARRAY_TEXCOORD_0
-#define VERT_TEX1 _NEW_ARRAY_TEXCOORD_1
-#define VERT_TEX2 _NEW_ARRAY_TEXCOORD_2
-#define VERT_TEX3 _NEW_ARRAY_TEXCOORD_3
-#define VERT_TEX4 _NEW_ARRAY_TEXCOORD_4
-#define VERT_TEX5 _NEW_ARRAY_TEXCOORD_5
-#define VERT_TEX6 _NEW_ARRAY_TEXCOORD_6
-#define VERT_TEX7 _NEW_ARRAY_TEXCOORD_7
-#define VERT_EVAL_C1 0x8000 /* imm only */
-#define VERT_EVAL_C2 0x10000 /* imm only */
-#define VERT_EVAL_P1 0x20000 /* imm only */
-#define VERT_EVAL_P2 0x40000 /* imm only */
-#define VERT_OBJ_3 0x80000 /* imm only */
-#define VERT_OBJ_4 0x100000 /* imm only */
-#define VERT_MATERIAL 0x200000 /* imm only, but tested in vb code */
-#define VERT_ELT 0x400000 /* imm only */
-#define VERT_BEGIN 0x800000 /* imm only, but tested in vb code */
-#define VERT_END 0x1000000 /* imm only, but tested in vb code */
-#define VERT_END_VB 0x2000000 /* imm only, but tested in vb code */
-#define VERT_POINT_SIZE 0x4000000 /* vb only, could reuse a bit */
-#define VERT_EYE VERT_BEGIN /* vb only, reuse imm bit */
-#define VERT_CLIP VERT_END /* vb only, reuse imm bit*/
+/* bits 0..5 defined in mtypes.h */
+#define VERT_BIT_INDEX VERT_BIT_SIX /* a free vertex attrib bit */
+#define VERT_BIT_EDGEFLAG VERT_BIT_SEVEN /* a free vertex attrib bit */
+/* bits 8..15 defined in mtypes.h */
+#define VERT_BIT_EVAL_C1 (1 << 16) /* imm only */
+#define VERT_BIT_EVAL_C2 (1 << 17) /* imm only */
+#define VERT_BIT_EVAL_P1 (1 << 18) /* imm only */
+#define VERT_BIT_EVAL_P2 (1 << 19) /* imm only */
+#define VERT_BIT_OBJ_3 (1 << 20) /* imm only */
+#define VERT_BIT_OBJ_4 (1 << 21) /* imm only */
+#define VERT_BIT_MATERIAL (1 << 22) /* imm only, but tested in vb code */
+#define VERT_BIT_ELT (1 << 23) /* imm only */
+#define VERT_BIT_BEGIN (1 << 24) /* imm only, but tested in vb code */
+#define VERT_BIT_END (1 << 25) /* imm only, but tested in vb code */
+#define VERT_BIT_END_VB (1 << 26) /* imm only, but tested in vb code */
+#define VERT_BIT_POINT_SIZE (1 << 27) /* vb only, could reuse a bit */
+#define VERT_BIT_EYE VERT_BIT_BEGIN /* vb only, reuse imm bit */
+#define VERT_BIT_CLIP VERT_BIT_END /* vb only, reuse imm bit*/
/* Flags for IM->TexCoordSize. Enough flags for 16 units.
*/
-#define TEX_0_SIZE_3 0x1
-#define TEX_0_SIZE_4 0x1001
-#define TEX_SIZE_3(unit) (TEX_0_SIZE_3<<unit)
-#define TEX_SIZE_4(unit) (TEX_0_SIZE_4<<unit)
+#define TEX_0_SIZE_3 (unsigned)0x1
+#define TEX_0_SIZE_4 (unsigned)0x10001
+#define TEX_SIZE_3(unit) (TEX_0_SIZE_3 << (unit))
+#define TEX_SIZE_4(unit) (TEX_0_SIZE_4 << (unit))
/* Shorthands.
*/
-#define VERT_EVAL_ANY (VERT_EVAL_C1|VERT_EVAL_P1| \
- VERT_EVAL_C2|VERT_EVAL_P2)
-
-#define VERT_OBJ_23 (VERT_OBJ_3|VERT_OBJ)
-#define VERT_OBJ_234 (VERT_OBJ_4|VERT_OBJ_23)
-
-#define VERT_TEX0_SHIFT 11
-
-#define VERT_TEX(i) (VERT_TEX0 << i)
-
-#define VERT_TEX_ANY (VERT_TEX0 | \
- VERT_TEX1 | \
- VERT_TEX2 | \
- VERT_TEX3 | \
- VERT_TEX4 | \
- VERT_TEX5 | \
- VERT_TEX6 | \
- VERT_TEX7)
-
-#define VERT_FIXUP (VERT_TEX_ANY | \
- VERT_RGBA | \
- VERT_SPEC_RGB | \
- VERT_FOG_COORD | \
- VERT_INDEX | \
- VERT_EDGE | \
- VERT_NORM)
-
-#define VERT_CURRENT_DATA (VERT_FIXUP | \
- VERT_MATERIAL)
-
-#define VERT_DATA (VERT_TEX_ANY | \
- VERT_RGBA | \
- VERT_SPEC_RGB | \
- VERT_FOG_COORD | \
- VERT_INDEX | \
- VERT_EDGE | \
- VERT_NORM | \
- VERT_OBJ | \
- VERT_MATERIAL | \
- VERT_ELT | \
- VERT_EVAL_ANY)
-
-
-/* KW: Represents everything that can take place between a begin and
+#define VERT_BITS_OBJ_23 (VERT_BIT_POS | VERT_BIT_OBJ_3)
+#define VERT_BITS_OBJ_234 (VERT_BIT_POS | VERT_BIT_OBJ_3 | VERT_BIT_OBJ_4)
+
+#define VERT_BITS_TEX_ANY (VERT_BIT_TEX0 | \
+ VERT_BIT_TEX1 | \
+ VERT_BIT_TEX2 | \
+ VERT_BIT_TEX3 | \
+ VERT_BIT_TEX4 | \
+ VERT_BIT_TEX5 | \
+ VERT_BIT_TEX6 | \
+ VERT_BIT_TEX7)
+
+#define VERT_BITS_EVAL_ANY (VERT_BIT_EVAL_C1 | VERT_BIT_EVAL_P1 | \
+ VERT_BIT_EVAL_C2 | VERT_BIT_EVAL_P2)
+
+#define VERT_BITS_FIXUP (VERT_BITS_TEX_ANY | \
+ VERT_BIT_COLOR0 | \
+ VERT_BIT_COLOR1 | \
+ VERT_BIT_FOG | \
+ VERT_BIT_INDEX | \
+ VERT_BIT_EDGEFLAG | \
+ VERT_BIT_NORMAL)
+
+#define VERT_BITS_CURRENT_DATA (VERT_BITS_FIXUP | \
+ VERT_BIT_MATERIAL)
+
+#define VERT_BITS_DATA (VERT_BITS_TEX_ANY | \
+ VERT_BIT_COLOR0 | \
+ VERT_BIT_COLOR1 | \
+ VERT_BIT_FOG | \
+ VERT_BIT_INDEX | \
+ VERT_BIT_EDGEFLAG | \
+ VERT_BIT_NORMAL | \
+ VERT_BIT_POS | \
+ VERT_BIT_MATERIAL | \
+ VERT_BIT_ELT | \
+ VERT_BITS_EVAL_ANY)
+
+
+/**
+ * KW: Represents everything that can take place between a begin and
* end, and can represent multiple begin/end pairs. Can be used to
* losslessly encode this information in display lists.
*/
struct immediate
{
- struct __GLcontextRec *backref;
GLuint id, ref_count;
/* This must be saved when immediates are shared in display lists.
GLuint CopyOrFlag;
GLuint CopyAndFlag;
GLuint CopyTexSize;
+ GLuint Evaluated;
/* allocate storage for these on demand:
GLuint MaterialOrMask;
GLuint MaterialAndMask;
- GLfloat (*TexCoord[MAX_TEXTURE_UNITS])[4];
-
- GLuint Primitive[IMM_SIZE]; /* BEGIN/END */
+ GLuint Primitive[IMM_SIZE]; /* BEGIN/END */
GLuint PrimitiveLength[IMM_SIZE]; /* BEGIN/END */
- GLuint Flag[IMM_SIZE]; /* VERT_* flags */
- GLfloat Color[IMM_SIZE][4];
- GLfloat Obj[IMM_SIZE][4];
- GLfloat Normal[IMM_SIZE][3];
- GLfloat *NormalLengthPtr;
- GLfloat TexCoord0[IMM_SIZE][4]; /* just VERT_TEX0 */
+ GLuint Flag[IMM_SIZE]; /* VERT_BIT_* flags */
+
+ /* All vertex attributes (position, normal, color, secondary color,
+ * texcoords, fog coord) are stored in the Attrib[] arrays instead
+ * of individual arrays as we did prior to Mesa 4.1.
+ *
+ * XXX may need to use 32-byte aligned allocation for this!!!
+ */
+ GLfloat Attrib[VERT_ATTRIB_MAX][IMM_SIZE][4]; /* GL_NV_vertex_program */
+
+ GLfloat *NormalLengthPtr; /* length of normal vectors (display list only) */
+
GLuint Elt[IMM_SIZE];
GLubyte EdgeFlag[IMM_SIZE];
GLuint Index[IMM_SIZE];
- GLfloat SecondaryColor[IMM_SIZE][4];
- GLfloat FogCoord[IMM_SIZE];
};
struct vertex_arrays
{
+ /* XXX move a bunch of these fields into the Attribs[] array??? */
GLvector4f Obj;
- GLvector3f Normal;
+ GLvector4f Normal;
struct gl_client_array Color;
struct gl_client_array SecondaryColor;
GLvector1ui Index;
GLvector1ub EdgeFlag;
- GLvector4f TexCoord[MAX_TEXTURE_UNITS];
+ GLvector4f TexCoord[MAX_TEXTURE_COORD_UNITS];
GLvector1ui Elt;
- GLvector1f FogCoord;
+ GLvector4f FogCoord;
+ GLvector4f Attribs[VERT_ATTRIB_MAX];
};
-typedef struct gl_material GLmaterial;
-
-/* Contains the current state of a running pipeline.
+/**
+ * Contains the current state of a running pipeline.
*/
typedef struct vertex_buffer
{
/* Constant over the pipeline.
*/
- GLuint Count; /* for everything except Elts */
- GLuint FirstClipped; /* temp verts for clipping */
- GLuint FirstPrimitive; /* usually zero */
+ GLuint Count; /* for everything except Elts */
+ GLuint FirstClipped; /* temp verts for clipping */
+ GLuint FirstPrimitive; /* usually zero */
/* Pointers to current data.
*/
- GLuint *Elts; /* VERT_ELT */
- GLvector4f *ObjPtr; /* VERT_OBJ */
- GLvector4f *EyePtr; /* VERT_EYE */
- GLvector4f *ClipPtr; /* VERT_CLIP */
- GLvector4f *ProjectedClipPtr; /* VERT_CLIP (2) */
- GLubyte ClipOrMask; /* VERT_CLIP (3) */
- GLubyte *ClipMask; /* VERT_CLIP (4) */
- GLvector3f *NormalPtr; /* VERT_NORM */
- GLfloat *NormalLengthPtr; /* VERT_NORM */
- GLboolean *EdgeFlag; /* VERT_EDGE */
- GLvector4f *TexCoordPtr[MAX_TEXTURE_UNITS]; /* VERT_TEX_0..n */
- GLvector1ui *IndexPtr[2]; /* VERT_INDEX */
- struct gl_client_array *ColorPtr[2]; /* VERT_RGBA */
- struct gl_client_array *SecondaryColorPtr[2]; /* VERT_SPEC_RGB */
- GLvector1f *FogCoordPtr; /* VERT_FOG_COORD */
- GLvector1f *PointSizePtr; /* VERT_POINT_SIZE */
- GLmaterial (*Material)[2]; /* VERT_MATERIAL, optional */
- GLuint *MaterialMask; /* VERT_MATERIAL, optional */
- GLuint *Flag; /* VERT_* flags, optional */
- GLuint *Primitive; /* GL_(mode)|PRIM_* flags */
- GLuint *PrimitiveLength; /* integers */
-
+ GLuint *Elts; /* VERT_BIT_ELT */
+ GLvector4f *ObjPtr; /* VERT_BIT_POS */
+ GLvector4f *EyePtr; /* VERT_BIT_EYE */
+ GLvector4f *ClipPtr; /* VERT_BIT_CLIP */
+ GLvector4f *NdcPtr; /* VERT_BIT_CLIP (2) */
+ GLubyte ClipOrMask; /* VERT_BIT_CLIP (3) */
+ GLubyte *ClipMask; /* VERT_BIT_CLIP (4) */
+ GLvector4f *NormalPtr; /* VERT_BIT_NORMAL */
+ GLfloat *NormalLengthPtr; /* VERT_BIT_NORMAL */
+ GLboolean *EdgeFlag; /* VERT_BIT_EDGEFLAG */
+ GLvector4f *TexCoordPtr[MAX_TEXTURE_COORD_UNITS]; /* VERT_TEX_0..n */
+ GLvector1ui *IndexPtr[2]; /* VERT_BIT_INDEX */
+ struct gl_client_array *ColorPtr[2]; /* VERT_BIT_COLOR0 */
+ struct gl_client_array *SecondaryColorPtr[2];/* VERT_BIT_COLOR1 */
+ GLvector4f *PointSizePtr; /* VERT_BIT_POINT_SIZE */
+ GLvector4f *FogCoordPtr; /* VERT_BIT_FOG */
+ struct gl_material (*Material)[2]; /* VERT_BIT_MATERIAL, optional */
+ GLuint *MaterialMask; /* VERT_BIT_MATERIAL, optional */
+ GLuint *Flag; /* VERT_BIT_* flags, optional */
+ GLuint *Primitive; /* GL_(mode)|PRIM_* flags */
+ GLuint *PrimitiveLength; /* integers */
+
+ /* Inputs to the vertex program stage */
+ GLvector4f *AttribPtr[VERT_ATTRIB_MAX]; /* GL_NV_vertex_program */
GLuint importable_data;
void *import_source;
struct tnl_eval_store {
GLuint EvalMap1Flags;
GLuint EvalMap2Flags;
+ GLuint EvalMap1AttribFlags; /* GL_NV_vertex_program */
+ GLuint EvalMap2AttribFlags; /* GL_NV_vertex_program */
GLuint EvalNewState;
struct immediate *im; /* used for temporary data */
};
GLfloat t, GLuint dst, GLuint out, GLuint in,
GLboolean force_boundary );
typedef void (*copy_pv_func)( GLcontext *ctx, GLuint dst, GLuint src );
+typedef void (*setup_func)( GLcontext *ctx,
+ GLuint start, GLuint end,
+ GLuint new_inputs);
struct tnl_device_driver {
* and grab/release hardware locks.
*/
- /***
- *** Rendering
- ***/
-
- void (*RenderStart)(GLcontext *ctx);
- void (*RenderFinish)(GLcontext *ctx);
- /* Called before and after all rendering operations, including DrawPixels,
- * ReadPixels, Bitmap, span functions, and CopyTexImage, etc commands.
- * These are a suitable place for grabbing/releasing hardware locks.
- */
-
- void (*RenderPrimitive)(GLcontext *ctx, GLenum mode);
- /* Called between RednerStart() and RenderFinish() to indicate the
- * type of primitive we're about to draw. Mode will be one of the
- * modes accepted by glBegin().
- */
-
- interp_func RenderInterp;
- /* The interp function is called by the clipping routines when we need
- * to generate an interpolated vertex. All pertinant vertex ancilliary
- * data should be computed by interpolating between the 'in' and 'out'
- * vertices.
+ void (*NotifyMaterialChange)(GLcontext *ctx);
+ /* Alert tnl-aware drivers of changes to material.
*/
- copy_pv_func RenderCopyPV;
- /* The copy function is used to make a copy of a vertex. All pertinant
- * vertex attributes should be copied.
+ GLboolean (*NotifyBegin)(GLcontext *ctx, GLenum p);
+ /* Allow drivers to hook in optimized begin/end engines.
+ * Return value: GL_TRUE - driver handled the begin
+ * GL_FALSE - driver didn't handle the begin
*/
- void (*RenderClippedPolygon)( GLcontext *ctx, const GLuint *elts, GLuint n );
- /* Render a polygon with <n> vertices whose indexes are in the <elts>
- * array.
- */
-
- void (*RenderClippedLine)( GLcontext *ctx, GLuint v0, GLuint v1 );
- /* Render a line between the two vertices given by indexes v0 and v1. */
-
- points_func PointsFunc; /* must now respect vb->elts */
- line_func LineFunc;
- triangle_func TriangleFunc;
- quad_func QuadFunc;
- /* These functions are called in order to render points, lines,
- * triangles and quads. These are only called via the T&L module.
- */
-
- render_func *RenderTabVerts;
- render_func *RenderTabElts;
- /* Render whole unclipped primitives (points, lines, linestrips,
- * lineloops, etc). The tables are indexed by the GL enum of the
- * primitive to be rendered. RenderTabVerts is used for non-indexed
- * arrays of vertices. RenderTabElts is used for indexed arrays of
- * vertices.
- */
-
- void (*ResetLineStipple)( GLcontext *ctx );
- /* Reset the hardware's line stipple counter.
- */
-
- void (*BuildProjectedVertices)( GLcontext *ctx,
- GLuint start, GLuint end,
- GLuint new_inputs);
- /* This function is called whenever new vertices are required for
- * rendering. The vertices in question are those n such that start
- * <= n < end. The new_inputs parameter indicates those fields of
- * the vertex which need to be updated, if only a partial repair of
- * the vertex is required.
- *
- * This function is called only from _tnl_render_stage in tnl/t_render.c.
- */
-
-
- GLboolean (*MultipassFunc)( GLcontext *ctx, GLuint passno );
- /* Driver may request additional render passes by returning GL_TRUE
- * when this function is called. This function will be called
- * after the first pass, and passes will be made until the function
- * returns GL_FALSE. If no function is registered, only one pass
- * is made.
- *
- * This function will be first invoked with passno == 1.
- */
+ /***
+ *** Rendering -- These functions called only from t_vb_render.c
+ ***/
+ struct {
+ void (*Start)(GLcontext *ctx);
+ void (*Finish)(GLcontext *ctx);
+ /* Called before and after all rendering operations, including DrawPixels,
+ * ReadPixels, Bitmap, span functions, and CopyTexImage, etc commands.
+ * These are a suitable place for grabbing/releasing hardware locks.
+ */
+
+ void (*PrimitiveNotify)(GLcontext *ctx, GLenum mode);
+ /* Called between RenderStart() and RenderFinish() to indicate the
+ * type of primitive we're about to draw. Mode will be one of the
+ * modes accepted by glBegin().
+ */
+
+ interp_func Interp;
+ /* The interp function is called by the clipping routines when we need
+ * to generate an interpolated vertex. All pertinant vertex ancilliary
+ * data should be computed by interpolating between the 'in' and 'out'
+ * vertices.
+ */
+
+ copy_pv_func CopyPV;
+ /* The copy function is used to make a copy of a vertex. All pertinant
+ * vertex attributes should be copied.
+ */
+
+ void (*ClippedPolygon)( GLcontext *ctx, const GLuint *elts, GLuint n );
+ /* Render a polygon with <n> vertices whose indexes are in the <elts>
+ * array.
+ */
+
+ void (*ClippedLine)( GLcontext *ctx, GLuint v0, GLuint v1 );
+ /* Render a line between the two vertices given by indexes v0 and v1. */
+
+ points_func Points; /* must now respect vb->elts */
+ line_func Line;
+ triangle_func Triangle;
+ quad_func Quad;
+ /* These functions are called in order to render points, lines,
+ * triangles and quads. These are only called via the T&L module.
+ */
+
+ render_func *PrimTabVerts;
+ render_func *PrimTabElts;
+ /* Render whole unclipped primitives (points, lines, linestrips,
+ * lineloops, etc). The tables are indexed by the GL enum of the
+ * primitive to be rendered. RenderTabVerts is used for non-indexed
+ * arrays of vertices. RenderTabElts is used for indexed arrays of
+ * vertices.
+ */
+
+ void (*ResetLineStipple)( GLcontext *ctx );
+ /* Reset the hardware's line stipple counter.
+ */
+
+ setup_func BuildVertices;
+ /* This function is called whenever new vertices are required for
+ * rendering. The vertices in question are those n such that start
+ * <= n < end. The new_inputs parameter indicates those fields of
+ * the vertex which need to be updated, if only a partial repair of
+ * the vertex is required.
+ *
+ * This function is called only from _tnl_render_stage in tnl/t_render.c.
+ */
+
+
+ GLboolean (*Multipass)( GLcontext *ctx, GLuint passno );
+ /* Driver may request additional render passes by returning GL_TRUE
+ * when this function is called. This function will be called
+ * after the first pass, and passes will be made until the function
+ * returns GL_FALSE. If no function is registered, only one pass
+ * is made.
+ *
+ * This function will be first invoked with passno == 1.
+ */
+ } Render;
};
-
+
typedef struct {
/* Probably need a better configuration mechanism:
*/
- GLboolean NeedProjCoords;
+ GLboolean NeedNdcCoords;
GLboolean LoopbackDListCassettes;
GLboolean CalcDListNormalLengths;
+ GLboolean IsolateMaterials;
/* Derived state and storage for _tnl_eval_vb:
*/
/* Functions to be plugged into dispatch when tnl is active.
*/
GLvertexformat vtxfmt;
+ GLvertexformat save_vtxfmt;
} TNLcontext;
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