-/* $Id: t_context.h,v 1.44 2003/01/14 04:55:47 brianp Exp $ */
-
/*
- * Mesa 3-D graphics library
- * Version: 5.1
+ * mesa 3-D graphics library
+ * Version: 6.5
*
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2006 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"),
* \author Keith Whitwell
*/
+
+/**
+ * \mainpage The TNL-module
+ *
+ * TNL stands for "transform and lighting", i.e. this module implements
+ * a pipeline that receives as input a buffer of vertices and does all
+ * necessary transformations (rotations, clipping, vertex shader etc.)
+ * and passes then the output to the rasterizer.
+ *
+ * The tnl_pipeline contains the array of all stages, which should be
+ * applied. Each stage is a black-box, which is described by an
+ * tnl_pipeline_stage. The function ::_tnl_run_pipeline applies all the
+ * stages to the vertex_buffer TNLcontext::vb, where the vertex data
+ * is stored. The last stage in the pipeline is the rasterizer.
+ *
+ */
+
+
#ifndef _T_CONTEXT_H
#define _T_CONTEXT_H
-#include "glheader.h"
-#include "mtypes.h"
+#include "main/glheader.h"
+#include "main/mtypes.h"
#include "math/m_matrix.h"
#include "math/m_vector.h"
#include "math/m_xform.h"
+#include "vbo/vbo.h"
#define MAX_PIPELINE_STAGES 30
-
-/* Numbers for sizing immediate structs.
- */
-#define IMM_MAX_COPIED_VERTS 3
-#define IMM_MAXDATA (216 + IMM_MAX_COPIED_VERTS)
-#define IMM_SIZE (IMM_MAXDATA + MAX_CLIPPED_VERTICES)
-
-
-/* Values for IM->BeginState
- */
-#define VERT_BEGIN_0 0x1 /* glBegin (if initially inside beg/end) */
-#define VERT_BEGIN_1 0x2 /* glBegin (if initially outside beg/end) */
-#define VERT_ERROR_0 0x4 /* invalid_operation in initial state 0 */
-#define VERT_ERROR_1 0x8 /* invalid_operation in initial state 1 */
-
-
-/* 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 */
-
-
-/**
- * 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.
+/*
+ * Note: The first attributes match the VERT_ATTRIB_* definitions
+ * in mtypes.h. However, the tnl module has additional attributes
+ * for materials, color indexes, edge flags, etc.
*/
-/* 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.
+/* Although it's nice to use these as bit indexes in a DWORD flag, we
+ * could manage without if necessary. Another limit currently is the
+ * number of bits allocated for these numbers in places like vertex
+ * program instruction formats and register layouts.
*/
-#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.
+/* The bit space exhaustion is a fact now, done by _TNL_ATTRIB_ATTRIBUTE* for
+ * GLSL vertex shader which cannot be aliased with conventional vertex attribs.
+ * Compacting _TNL_ATTRIB_MAT_* attribs would not work, they would not give
+ * as many free bits (11 plus already 1 free bit) as _TNL_ATTRIB_ATTRIBUTE*
+ * attribs want (16).
*/
-#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)
-
+enum {
+ _TNL_ATTRIB_POS = 0,
+ _TNL_ATTRIB_WEIGHT = 1,
+ _TNL_ATTRIB_NORMAL = 2,
+ _TNL_ATTRIB_COLOR0 = 3,
+ _TNL_ATTRIB_COLOR1 = 4,
+ _TNL_ATTRIB_FOG = 5,
+ _TNL_ATTRIB_COLOR_INDEX = 6,
+ _TNL_ATTRIB_EDGEFLAG = 7,
+ _TNL_ATTRIB_TEX0 = 8,
+ _TNL_ATTRIB_TEX1 = 9,
+ _TNL_ATTRIB_TEX2 = 10,
+ _TNL_ATTRIB_TEX3 = 11,
+ _TNL_ATTRIB_TEX4 = 12,
+ _TNL_ATTRIB_TEX5 = 13,
+ _TNL_ATTRIB_TEX6 = 14,
+ _TNL_ATTRIB_TEX7 = 15,
+
+ _TNL_ATTRIB_GENERIC0 = 16, /* doesn't really exist! */
+ _TNL_ATTRIB_GENERIC1 = 17,
+ _TNL_ATTRIB_GENERIC2 = 18,
+ _TNL_ATTRIB_GENERIC3 = 19,
+ _TNL_ATTRIB_GENERIC4 = 20,
+ _TNL_ATTRIB_GENERIC5 = 21,
+ _TNL_ATTRIB_GENERIC6 = 22,
+ _TNL_ATTRIB_GENERIC7 = 23,
+ _TNL_ATTRIB_GENERIC8 = 24,
+ _TNL_ATTRIB_GENERIC9 = 25,
+ _TNL_ATTRIB_GENERIC10 = 26,
+ _TNL_ATTRIB_GENERIC11 = 27,
+ _TNL_ATTRIB_GENERIC12 = 28,
+ _TNL_ATTRIB_GENERIC13 = 29,
+ _TNL_ATTRIB_GENERIC14 = 30,
+ _TNL_ATTRIB_GENERIC15 = 31,
+
+ /* These alias with the generics, but they are not active
+ * concurrently, so it's not a problem. The TNL module
+ * doesn't have to do anything about this as this is how they
+ * are passed into the _draw_prims callback.
+ *
+ * When we generate fixed-function replacement programs (in
+ * t_vp_build.c currently), they refer to the appropriate
+ * generic attribute in order to pick up per-vertex material
+ * data.
+ */
+ _TNL_ATTRIB_MAT_FRONT_AMBIENT = 16,
+ _TNL_ATTRIB_MAT_BACK_AMBIENT = 17,
+ _TNL_ATTRIB_MAT_FRONT_DIFFUSE = 18,
+ _TNL_ATTRIB_MAT_BACK_DIFFUSE = 19,
+ _TNL_ATTRIB_MAT_FRONT_SPECULAR = 20,
+ _TNL_ATTRIB_MAT_BACK_SPECULAR = 21,
+ _TNL_ATTRIB_MAT_FRONT_EMISSION = 22,
+ _TNL_ATTRIB_MAT_BACK_EMISSION = 23,
+ _TNL_ATTRIB_MAT_FRONT_SHININESS = 24,
+ _TNL_ATTRIB_MAT_BACK_SHININESS = 25,
+ _TNL_ATTRIB_MAT_FRONT_INDEXES = 26,
+ _TNL_ATTRIB_MAT_BACK_INDEXES = 27,
+
+ /* This is really a VERT_RESULT, not an attrib. Need to fix
+ * tnl to understand the difference.
+ */
+ _TNL_ATTRIB_POINTSIZE = 16,
+
+ _TNL_ATTRIB_MAX = 32
+} ;
+
+#define _TNL_ATTRIB_TEX(u) (_TNL_ATTRIB_TEX0 + (u))
+#define _TNL_ATTRIB_GENERIC(n) (_TNL_ATTRIB_GENERIC0 + (n))
+
+/* special index used for handing invalid glVertexAttribute() indices */
+#define _TNL_ATTRIB_ERROR (_TNL_ATTRIB_GENERIC15 + 1)
/**
- * 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.
+ * Handy attribute ranges:
*/
-struct immediate
-{
- GLuint id, ref_count;
+#define _TNL_FIRST_PROG _TNL_ATTRIB_WEIGHT
+#define _TNL_LAST_PROG _TNL_ATTRIB_TEX7
- /* This must be saved when immediates are shared in display lists.
- */
- GLuint CopyStart, Start, Count;
- GLuint LastData; /* count or count+1 */
- GLuint AndFlag, OrFlag;
- GLuint TexSize; /* keep track of texcoord sizes */
- GLuint BeginState, SavedBeginState;
- GLuint LastPrimitive;
+#define _TNL_FIRST_TEX _TNL_ATTRIB_TEX0
+#define _TNL_LAST_TEX _TNL_ATTRIB_TEX7
- GLuint ArrayEltFlags; /* precalc'ed for glArrayElt */
- GLuint ArrayEltIncr;
- GLuint ArrayEltFlush;
+#define _TNL_FIRST_GENERIC _TNL_ATTRIB_GENERIC0
+#define _TNL_LAST_GENERIC _TNL_ATTRIB_GENERIC15
-#define FLUSH_ELT_EAGER 0x1
-#define FLUSH_ELT_LAZY 0x2
- GLuint FlushElt;
+#define _TNL_FIRST_MAT _TNL_ATTRIB_MAT_FRONT_AMBIENT /* GENERIC0 */
+#define _TNL_LAST_MAT _TNL_ATTRIB_MAT_BACK_INDEXES /* GENERIC11 */
- GLuint MaxTextureUnits; /* precalc'ed for glMultiTexCoordARB */
+/* Number of available generic attributes */
+#define _TNL_NUM_GENERIC 16
- /* Temporary values created when vertices are copied into the
- * first 3 slots of the struct:
- */
- GLuint CopyOrFlag;
- GLuint CopyAndFlag;
- GLuint CopyTexSize;
- GLuint Evaluated;
+/* Number of attributes used for evaluators */
+#define _TNL_NUM_EVAL 16
- /* allocate storage for these on demand:
- */
- struct gl_material (*Material)[2];
- GLuint *MaterialMask;
- GLuint LastMaterial;
- GLuint MaterialOrMask;
- GLuint MaterialAndMask;
-
- GLuint Primitive[IMM_SIZE]; /* BEGIN/END */
- GLuint PrimitiveLength[IMM_SIZE]; /* BEGIN/END */
- 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 */
+#define PRIM_BEGIN 0x10
+#define PRIM_END 0x20
+#define PRIM_MODE_MASK 0x0f
- GLfloat *NormalLengthPtr; /* length of normal vectors (display list only) */
-
- GLuint Elt[IMM_SIZE];
- GLubyte EdgeFlag[IMM_SIZE];
- GLuint Index[IMM_SIZE];
-};
+static INLINE GLuint _tnl_translate_prim( const struct _mesa_prim *prim )
+{
+ GLuint flag;
+ flag = prim->mode;
+ if (prim->begin) flag |= PRIM_BEGIN;
+ if (prim->end) flag |= PRIM_END;
+ return flag;
+}
-struct vertex_arrays
-{
- /* XXX move a bunch of these fields into the Attribs[] array??? */
- GLvector4f Obj;
- GLvector4f Normal;
- struct gl_client_array Color;
- struct gl_client_array SecondaryColor;
- GLvector1ui Index;
- GLvector1ub EdgeFlag;
- GLvector4f TexCoord[MAX_TEXTURE_COORD_UNITS];
- GLvector1ui Elt;
- GLvector4f FogCoord;
- GLvector4f Attribs[VERT_ATTRIB_MAX];
-};
/**
* Contains the current state of a running pipeline.
*/
-typedef struct vertex_buffer
+struct vertex_buffer
{
- /* Constant over life of the vertex_buffer.
- */
- GLuint Size;
+ GLuint Size; /**< Max vertices per vertex buffer, constant */
/* Constant over the pipeline.
*/
- GLuint Count; /* for everything except Elts */
- GLuint FirstClipped; /* temp verts for clipping */
- GLuint FirstPrimitive; /* usually zero */
+ GLuint Count; /**< Number of vertices currently in buffer */
/* Pointers to current data.
+ * XXX some of these fields alias AttribPtr below and should be removed
+ * such as NormalPtr, TexCoordPtr, FogCoordPtr, etc.
*/
- 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 */
+ GLuint *Elts;
+ GLvector4f *ObjPtr; /* _TNL_BIT_POS */
+ GLvector4f *EyePtr; /* _TNL_BIT_POS */
+ GLvector4f *ClipPtr; /* _TNL_BIT_POS */
+ GLvector4f *NdcPtr; /* _TNL_BIT_POS */
+ GLubyte ClipOrMask; /* _TNL_BIT_POS */
+ GLubyte ClipAndMask; /* _TNL_BIT_POS */
+ GLubyte *ClipMask; /* _TNL_BIT_POS */
+ GLvector4f *NormalPtr; /* _TNL_BIT_NORMAL */
+ GLfloat *NormalLengthPtr; /* _TNL_BIT_NORMAL */
+ GLboolean *EdgeFlag; /* _TNL_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 */
+ GLvector4f *IndexPtr[2]; /* _TNL_BIT_INDEX */
+ GLvector4f *ColorPtr[2]; /* _TNL_BIT_COLOR0 */
+ GLvector4f *SecondaryColorPtr[2]; /* _TNL_BIT_COLOR1 */
+ GLvector4f *FogCoordPtr; /* _TNL_BIT_FOG */
- /* Inputs to the vertex program stage */
- GLvector4f *AttribPtr[VERT_ATTRIB_MAX]; /* GL_NV_vertex_program */
-
- GLuint importable_data;
- void *import_source;
- void (*import_data)( GLcontext *ctx, GLuint flags, GLuint vecflags );
- /* Callback to the provider of the untransformed input for the
- * render stage (or other stages) to call if they need to write into
- * write-protected arrays, or fixup the stride on input arrays.
- *
- * This is currently only necessary for client arrays that make it
- * as far down the pipeline as the render stage.
- */
-
- GLuint LastClipped;
- /* Private data from _tnl_render_stage that has no business being
- * in this struct.
- */
-
-} TNLvertexbuffer;
+ const struct _mesa_prim *Primitive;
+ GLuint PrimitiveCount;
+ /* Inputs to the vertex program stage */
+ GLvector4f *AttribPtr[_TNL_ATTRIB_MAX]; /* GL_NV_vertex_program */
+};
-/* Describes an individual operation on the pipeline.
+/**
+ * Describes an individual operation on the pipeline.
*/
-struct gl_pipeline_stage {
+struct tnl_pipeline_stage
+{
const char *name;
- GLuint check_state; /* All state referenced in check() --
- * When is the pipeline_stage struct
- * itself invalidated? Must be
- * constant.
- */
-
- /* Usually constant or set by the 'check' callback:
- */
- GLuint run_state; /* All state referenced in run() --
- * When is the cached output of the
- * stage invalidated?
- */
-
- GLboolean active; /* True if runnable in current state */
- GLuint inputs; /* VERT_* inputs to the stage */
- GLuint outputs; /* VERT_* outputs of the stage */
-
- /* Set in _tnl_run_pipeline():
- */
- GLuint changed_inputs; /* Generated value -- inputs to the
- * stage that have changed since last
- * call to 'run'.
- */
/* Private data for the pipeline stage:
*/
void *privatePtr;
- /* Free private data. May not be null.
+ /* Allocate private data
+ */
+ GLboolean (*create)( GLcontext *ctx, struct tnl_pipeline_stage * );
+
+ /* Free private data.
*/
- void (*destroy)( struct gl_pipeline_stage * );
+ void (*destroy)( struct tnl_pipeline_stage * );
- /* Called from _tnl_validate_pipeline(). Must update all fields in
- * the pipeline_stage struct for the current state.
+ /* Called on any statechange or input array size change or
+ * input array change to/from zero stride.
*/
- void (*check)( GLcontext *ctx, struct gl_pipeline_stage * );
+ void (*validate)( GLcontext *ctx, struct tnl_pipeline_stage * );
/* Called from _tnl_run_pipeline(). The stage.changed_inputs value
* encodes all inputs to thee struct which have changed. If
* Return value: GL_TRUE - keep going
* GL_FALSE - finished pipeline
*/
- GLboolean (*run)( GLcontext *ctx, struct gl_pipeline_stage * );
+ GLboolean (*run)( GLcontext *ctx, struct tnl_pipeline_stage * );
};
-struct gl_pipeline {
- GLuint build_state_trigger; /* state changes which require build */
- GLuint build_state_changes; /* state changes since last build */
- GLuint run_state_changes; /* state changes since last run */
- GLuint run_input_changes; /* VERT_* changes since last run */
- GLuint inputs; /* VERT_* inputs to pipeline */
- struct gl_pipeline_stage stages[MAX_PIPELINE_STAGES+1];
+
+/** Contains the array of all pipeline stages.
+ * The default values are defined at the end of t_pipeline.c
+ */
+struct tnl_pipeline {
+
+ GLuint last_attrib_stride[_TNL_ATTRIB_MAX];
+ GLuint last_attrib_size[_TNL_ATTRIB_MAX];
+ GLuint input_changes;
+ GLuint new_state;
+
+ struct tnl_pipeline_stage stages[MAX_PIPELINE_STAGES+1];
GLuint nr_stages;
};
+struct tnl_clipspace;
+struct tnl_clipspace_attr;
+
+typedef void (*tnl_extract_func)( const struct tnl_clipspace_attr *a,
+ GLfloat *out,
+ const GLubyte *v );
+
+typedef void (*tnl_insert_func)( const struct tnl_clipspace_attr *a,
+ GLubyte *v,
+ const GLfloat *in );
+
+typedef void (*tnl_emit_func)( GLcontext *ctx,
+ GLuint count,
+ GLubyte *dest );
+
+
+/**
+ * Describes how to convert/move a vertex attribute from a vertex array
+ * to a vertex structure.
+ */
+struct tnl_clipspace_attr
+{
+ GLuint attrib; /* which vertex attrib (0=position, etc) */
+ GLuint format;
+ GLuint vertoffset; /* position of the attrib in the vertex struct */
+ GLuint vertattrsize; /* size of the attribute in bytes */
+ GLubyte *inputptr;
+ GLuint inputstride;
+ GLuint inputsize;
+ const tnl_insert_func *insert;
+ tnl_insert_func emit;
+ tnl_extract_func extract;
+ const GLfloat *vp; /* NDC->Viewport mapping matrix */
+};
+
+
+
+
+typedef void (*tnl_points_func)( GLcontext *ctx, GLuint first, GLuint last );
+typedef void (*tnl_line_func)( GLcontext *ctx, GLuint v1, GLuint v2 );
+typedef void (*tnl_triangle_func)( GLcontext *ctx,
+ GLuint v1, GLuint v2, GLuint v3 );
+typedef void (*tnl_quad_func)( GLcontext *ctx, GLuint v1, GLuint v2,
+ GLuint v3, GLuint v4 );
+typedef void (*tnl_render_func)( GLcontext *ctx, GLuint start, GLuint count,
+ GLuint flags );
+typedef void (*tnl_interp_func)( GLcontext *ctx,
+ GLfloat t, GLuint dst, GLuint out, GLuint in,
+ GLboolean force_boundary );
+typedef void (*tnl_copy_pv_func)( GLcontext *ctx, GLuint dst, GLuint src );
+typedef void (*tnl_setup_func)( GLcontext *ctx,
+ GLuint start, GLuint end,
+ GLuint new_inputs);
+
+
+struct tnl_attr_type {
+ GLuint format;
+ GLuint size;
+ GLuint stride;
+ GLuint offset;
+};
+
+struct tnl_clipspace_fastpath {
+ GLuint vertex_size;
+ GLuint attr_count;
+ GLboolean match_strides;
-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 */
+ struct tnl_attr_type *attr;
+
+ tnl_emit_func func;
+ struct tnl_clipspace_fastpath *next;
};
+/**
+ * Used to describe conversion of vertex arrays to vertex structures.
+ * I.e. Structure of arrays to arrays of structs.
+ */
+struct tnl_clipspace
+{
+ GLboolean need_extras;
+
+ GLuint new_inputs;
+
+ GLubyte *vertex_buf;
+ GLuint vertex_size;
+ GLuint max_vertex_size;
+
+ struct tnl_clipspace_attr attr[_TNL_ATTRIB_MAX];
+ GLuint attr_count;
+
+ tnl_emit_func emit;
+ tnl_interp_func interp;
+ tnl_copy_pv_func copy_pv;
-typedef void (*points_func)( GLcontext *ctx, GLuint first, GLuint last );
-typedef void (*line_func)( GLcontext *ctx, GLuint v1, GLuint v2 );
-typedef void (*triangle_func)( GLcontext *ctx,
- GLuint v1, GLuint v2, GLuint v3 );
-typedef void (*quad_func)( GLcontext *ctx, GLuint v1, GLuint v2,
- GLuint v3, GLuint v4 );
-typedef void (*render_func)( GLcontext *ctx, GLuint start, GLuint count,
- GLuint flags );
-typedef void (*interp_func)( GLcontext *ctx,
- 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 {
+ /* Parameters and constants for codegen:
+ */
+ GLboolean need_viewport;
+ GLfloat vp_scale[4];
+ GLfloat vp_xlate[4];
+ GLfloat chan_scale[4];
+ GLfloat identity[4];
+
+ struct tnl_clipspace_fastpath *fastpath;
+
+ void (*codegen_emit)( GLcontext *ctx );
+};
+
+
+struct tnl_cache_item {
+ GLuint hash;
+ void *key;
+ void *data;
+ struct tnl_cache_item *next;
+};
+
+struct tnl_cache {
+ struct tnl_cache_item **items;
+ GLuint size, n_items;
+};
+
+
+struct tnl_device_driver
+{
/***
*** TNL Pipeline
***/
/* Alert tnl-aware drivers of changes to material.
*/
- 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 (*NotifyInputChanges)(GLcontext *ctx, GLuint bitmask);
+ /* Alert tnl-aware drivers of changes to size and stride of input
+ * arrays.
*/
/***
*** Rendering -- These functions called only from t_vb_render.c
***/
- struct {
+ struct
+ {
void (*Start)(GLcontext *ctx);
void (*Finish)(GLcontext *ctx);
/* Called before and after all rendering operations, including DrawPixels,
* modes accepted by glBegin().
*/
- interp_func Interp;
+ tnl_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;
+ tnl_copy_pv_func CopyPV;
/* The copy function is used to make a copy of a vertex. All pertinant
* vertex attributes should be copied.
*/
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;
+ tnl_points_func Points; /* must now respect vb->elts */
+ tnl_line_func Line;
+ tnl_triangle_func Triangle;
+ tnl_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;
+ tnl_render_func *PrimTabVerts;
+ tnl_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
/* Reset the hardware's line stipple counter.
*/
- setup_func BuildVertices;
+ tnl_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
*/
} Render;
};
-
-typedef struct {
- /* Driver interface.
- */
- struct tnl_device_driver Driver;
+#define DECLARE_RENDERINPUTS(name) BITSET64_DECLARE(name, _TNL_ATTRIB_MAX)
+#define RENDERINPUTS_COPY BITSET64_COPY
+#define RENDERINPUTS_EQUAL BITSET64_EQUAL
+#define RENDERINPUTS_ZERO BITSET64_ZERO
+#define RENDERINPUTS_ONES BITSET64_ONES
+#define RENDERINPUTS_TEST BITSET64_TEST
+#define RENDERINPUTS_SET BITSET64_SET
+#define RENDERINPUTS_CLEAR BITSET64_CLEAR
+#define RENDERINPUTS_TEST_RANGE BITSET64_TEST_RANGE
+#define RENDERINPUTS_SET_RANGE BITSET64_SET_RANGE
+#define RENDERINPUTS_CLEAR_RANGE BITSET64_CLEAR_RANGE
- /* Track whether the module is active.
- */
- GLboolean bound_exec;
- /* Display list extensions
+/**
+ * Context state for T&L context.
+ */
+typedef struct
+{
+ /* Driver interface.
*/
- GLuint opcode_vertex_cassette;
+ struct tnl_device_driver Driver;
/* Pipeline
*/
- struct gl_pipeline pipeline;
+ struct tnl_pipeline pipeline;
struct vertex_buffer vb;
- /* GLvectors for binding to vb:
+ /* Clipspace/ndc/window vertex managment:
*/
- struct vertex_arrays imm_inputs;
- struct vertex_arrays array_inputs;
- GLuint *tmp_primitive;
- GLuint *tmp_primitive_length;
-
- /* Set when executing an internally generated begin/end object. If
- * such an object is encountered in a display list, it will be
- * replayed only if the list is outside any existing begin/end
- * objects.
- */
- GLboolean ReplayHardBeginEnd;
-
- /* Note which vertices need copying over succesive immediates.
- * Will add save versions to precompute vertex copying where
- * possible.
- */
- struct immediate *ExecCopySource;
- GLuint ExecCopyCount;
- GLuint ExecCopyElts[IMM_MAX_COPIED_VERTS];
- GLuint ExecCopyTexSize;
- GLuint ExecParity;
-
- GLuint DlistPrimitive;
- GLuint DlistPrimitiveLength;
- GLuint DlistLastPrimitive;
-
- /* Cache a single free immediate (refcount == 0)
- */
- struct immediate *freed_immediate;
+ struct tnl_clipspace clipspace;
/* Probably need a better configuration mechanism:
*/
GLboolean NeedNdcCoords;
- GLboolean LoopbackDListCassettes;
- GLboolean CalcDListNormalLengths;
- GLboolean IsolateMaterials;
+ GLboolean AllowVertexFog;
+ GLboolean AllowPixelFog;
+ GLboolean _DoVertexFog; /* eval fog function at each vertex? */
+
+ DECLARE_RENDERINPUTS(render_inputs_bitset);
- /* Derived state and storage for _tnl_eval_vb:
+ GLvector4f tmp_inputs[VERT_ATTRIB_MAX];
+
+ /* Temp storage for t_draw.c:
*/
- struct tnl_eval_store eval;
+ GLubyte *block[VERT_ATTRIB_MAX];
+ GLuint nr_blocks;
- /* Functions to be plugged into dispatch when tnl is active.
+ /* Cache of fixed-function-replacing vertex programs:
*/
- GLvertexformat vtxfmt;
- GLvertexformat save_vtxfmt;
+ struct tnl_cache *vp_cache;
} TNLcontext;
-#define TNL_CONTEXT(ctx) ((TNLcontext *)(ctx->swtnl_context))
-#define TNL_CURRENT_IM(ctx) ((struct immediate *)(ctx->swtnl_im))
+#define TNL_CONTEXT(ctx) ((TNLcontext *)((ctx)->swtnl_context))
#define TYPE_IDX(t) ((t) & 0xf)
#define MAX_TYPES TYPE_IDX(GL_DOUBLE)+1 /* 0xa + 1 */
-extern void _tnl_MakeCurrent( GLcontext *ctx,
- GLframebuffer *drawBuffer,
- GLframebuffer *readBuffer );
-
-
-/*
- * Macros for fetching current input buffer.
- */
-#ifdef THREADS
-#define GET_IMMEDIATE struct immediate *IM = TNL_CURRENT_IM(((GLcontext *) (_glapi_Context ? _glapi_Context : _glapi_get_context())))
-#define SET_IMMEDIATE(ctx, im) ctx->swtnl_im = (void *)im
-#else
-extern struct immediate *_tnl_CurrentInput;
-#define GET_IMMEDIATE struct immediate *IM = _tnl_CurrentInput
-#define SET_IMMEDIATE(ctx, im) \
-do { \
- ctx->swtnl_im = (void *)im; \
- _tnl_CurrentInput = im; \
-} while (0)
-#endif
-
#endif
projects / mesa.git / blobdiff