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/programs/develop/libraries/Mesa/src/mesa/main/mtypes.h
0,0 → 1,3330
/*
* Mesa 3-D graphics library
* Version: 7.7
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (C) 2009 VMware, Inc. 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 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
* 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.
*/
/**
* \file mtypes.h
* Main Mesa data structures.
*
* Please try to mark derived values with a leading underscore ('_').
*/
#ifndef MTYPES_H
#define MTYPES_H
#include "main/glheader.h"
#include "main/config.h"
#include "main/mfeatures.h"
#include "glapi/glapi.h"
#include "math/m_matrix.h" /* GLmatrix */
#include "main/simple_list.h" /* struct simple_node */
/**
* Color channel data type.
*/
#if CHAN_BITS == 8
typedef GLubyte GLchan;
#define CHAN_MAX 255
#define CHAN_MAXF 255.0F
#define CHAN_TYPE GL_UNSIGNED_BYTE
#elif CHAN_BITS == 16
typedef GLushort GLchan;
#define CHAN_MAX 65535
#define CHAN_MAXF 65535.0F
#define CHAN_TYPE GL_UNSIGNED_SHORT
#elif CHAN_BITS == 32
typedef GLfloat GLchan;
#define CHAN_MAX 1.0
#define CHAN_MAXF 1.0F
#define CHAN_TYPE GL_FLOAT
#else
#error "illegal number of color channel bits"
#endif
/**
* Stencil buffer data type.
*/
#if STENCIL_BITS==8
typedef GLubyte GLstencil;
#elif STENCIL_BITS==16
typedef GLushort GLstencil;
#else
# error "illegal number of stencil bits"
#endif
/**
* \name 64-bit extension of GLbitfield.
*/
/*@{*/
typedef GLuint64 GLbitfield64;
#define BITFIELD64_ONE 1ULL
#define BITFIELD64_ALLONES ~0ULL
/** Set a single bit */
#define BITFIELD64_BIT(b) (BITFIELD64_ONE << (b))
/** Set a mask of the least significant \c b bits */
#define BITFIELD64_MASK(b) (((b) >= 64) ? BITFIELD64_ALLONES : \
(BITFIELD64_BIT(b) - 1))
/**
* Set all bits from l (low bit) to h (high bit), inclusive.
*
* \note \C BITFIELD_64_RANGE(0, 63) return 64 set bits.
*/
#define BITFIELD64_RANGE(l, h) (BITFIELD64_MASK((h) + 1) & ~BITFIELD64_MASK(l))
/*@}*/
/**
* \name Some forward type declarations
*/
/*@{*/
struct _mesa_HashTable;
struct gl_attrib_node;
struct gl_list_extensions;
struct gl_meta_state;
struct gl_pixelstore_attrib;
struct gl_program_cache;
struct gl_texture_format;
struct gl_texture_image;
struct gl_texture_object;
struct gl_context;
struct st_context;
/*@}*/
/**
* Shader stages. Note that these will become 5 with tessellation.
* These MUST have the same values as gallium's PIPE_SHADER_*
*/
typedef enum
{
MESA_SHADER_VERTEX = 0,
MESA_SHADER_FRAGMENT = 1,
MESA_SHADER_GEOMETRY = 2,
MESA_SHADER_TYPES = 3
} gl_shader_type;
/**
* Indexes for vertex program attributes.
* GL_NV_vertex_program aliases generic attributes over the conventional
* attributes. In GL_ARB_vertex_program shader the aliasing is optional.
* In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
* generic attributes are distinct/separate).
*/
typedef enum
{
VERT_ATTRIB_POS = 0,
VERT_ATTRIB_WEIGHT = 1,
VERT_ATTRIB_NORMAL = 2,
VERT_ATTRIB_COLOR0 = 3,
VERT_ATTRIB_COLOR1 = 4,
VERT_ATTRIB_FOG = 5,
VERT_ATTRIB_COLOR_INDEX = 6,
VERT_ATTRIB_POINT_SIZE = 6, /*alias*/
VERT_ATTRIB_EDGEFLAG = 7,
VERT_ATTRIB_TEX0 = 8,
VERT_ATTRIB_TEX1 = 9,
VERT_ATTRIB_TEX2 = 10,
VERT_ATTRIB_TEX3 = 11,
VERT_ATTRIB_TEX4 = 12,
VERT_ATTRIB_TEX5 = 13,
VERT_ATTRIB_TEX6 = 14,
VERT_ATTRIB_TEX7 = 15,
VERT_ATTRIB_GENERIC0 = 16,
VERT_ATTRIB_GENERIC1 = 17,
VERT_ATTRIB_GENERIC2 = 18,
VERT_ATTRIB_GENERIC3 = 19,
VERT_ATTRIB_GENERIC4 = 20,
VERT_ATTRIB_GENERIC5 = 21,
VERT_ATTRIB_GENERIC6 = 22,
VERT_ATTRIB_GENERIC7 = 23,
VERT_ATTRIB_GENERIC8 = 24,
VERT_ATTRIB_GENERIC9 = 25,
VERT_ATTRIB_GENERIC10 = 26,
VERT_ATTRIB_GENERIC11 = 27,
VERT_ATTRIB_GENERIC12 = 28,
VERT_ATTRIB_GENERIC13 = 29,
VERT_ATTRIB_GENERIC14 = 30,
VERT_ATTRIB_GENERIC15 = 31,
VERT_ATTRIB_MAX = 32
} gl_vert_attrib;
/**
* Bitflags for vertex attributes.
* These are used in bitfields in many places.
*/
/*@{*/
#define VERT_BIT_POS (1 << VERT_ATTRIB_POS)
#define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT)
#define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL)
#define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0)
#define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1)
#define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG)
#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX)
#define VERT_BIT_EDGEFLAG (1 << VERT_ATTRIB_EDGEFLAG)
#define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0)
#define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1)
#define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2)
#define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3)
#define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4)
#define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5)
#define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6)
#define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7)
#define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0)
#define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1)
#define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2)
#define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3)
#define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4)
#define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5)
#define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6)
#define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7)
#define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8)
#define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9)
#define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10)
#define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11)
#define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12)
#define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13)
#define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14)
#define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15)
#define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u)))
#define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g)))
/*@}*/
/**
* Indexes for vertex program result attributes
*/
typedef enum
{
VERT_RESULT_HPOS = 0,
VERT_RESULT_COL0 = 1,
VERT_RESULT_COL1 = 2,
VERT_RESULT_FOGC = 3,
VERT_RESULT_TEX0 = 4,
VERT_RESULT_TEX1 = 5,
VERT_RESULT_TEX2 = 6,
VERT_RESULT_TEX3 = 7,
VERT_RESULT_TEX4 = 8,
VERT_RESULT_TEX5 = 9,
VERT_RESULT_TEX6 = 10,
VERT_RESULT_TEX7 = 11,
VERT_RESULT_PSIZ = 12,
VERT_RESULT_BFC0 = 13,
VERT_RESULT_BFC1 = 14,
VERT_RESULT_EDGE = 15,
VERT_RESULT_VAR0 = 16, /**< shader varying */
VERT_RESULT_MAX = (VERT_RESULT_VAR0 + MAX_VARYING)
} gl_vert_result;
/*********************************************/
/**
* Indexes for geometry program attributes.
*/
typedef enum
{
GEOM_ATTRIB_POSITION = 0,
GEOM_ATTRIB_COLOR0 = 1,
GEOM_ATTRIB_COLOR1 = 2,
GEOM_ATTRIB_SECONDARY_COLOR0 = 3,
GEOM_ATTRIB_SECONDARY_COLOR1 = 4,
GEOM_ATTRIB_FOG_FRAG_COORD = 5,
GEOM_ATTRIB_POINT_SIZE = 6,
GEOM_ATTRIB_CLIP_VERTEX = 7,
GEOM_ATTRIB_PRIMITIVE_ID = 8,
GEOM_ATTRIB_TEX_COORD = 9,
GEOM_ATTRIB_VAR0 = 16,
GEOM_ATTRIB_MAX = (GEOM_ATTRIB_VAR0 + MAX_VARYING)
} gl_geom_attrib;
/**
* Bitflags for geometry attributes.
* These are used in bitfields in many places.
*/
/*@{*/
#define GEOM_BIT_COLOR0 (1 << GEOM_ATTRIB_COLOR0)
#define GEOM_BIT_COLOR1 (1 << GEOM_ATTRIB_COLOR1)
#define GEOM_BIT_SCOLOR0 (1 << GEOM_ATTRIB_SECONDARY_COLOR0)
#define GEOM_BIT_SCOLOR1 (1 << GEOM_ATTRIB_SECONDARY_COLOR1)
#define GEOM_BIT_TEX_COORD (1 << GEOM_ATTRIB_TEX_COORD)
#define GEOM_BIT_FOG_COORD (1 << GEOM_ATTRIB_FOG_FRAG_COORD)
#define GEOM_BIT_POSITION (1 << GEOM_ATTRIB_POSITION)
#define GEOM_BIT_POINT_SIDE (1 << GEOM_ATTRIB_POINT_SIZE)
#define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX)
#define GEOM_BIT_PRIM_ID (1 << GEOM_ATTRIB_PRIMITIVE_ID)
#define GEOM_BIT_VAR0 (1 << GEOM_ATTRIB_VAR0)
#define GEOM_BIT_VAR(g) (1 << (GEOM_BIT_VAR0 + (g)))
/*@}*/
/**
* Indexes for geometry program result attributes
*/
/*@{*/
typedef enum {
GEOM_RESULT_POS = 0,
GEOM_RESULT_COL0 = 1,
GEOM_RESULT_COL1 = 2,
GEOM_RESULT_SCOL0 = 3,
GEOM_RESULT_SCOL1 = 4,
GEOM_RESULT_FOGC = 5,
GEOM_RESULT_TEX0 = 6,
GEOM_RESULT_TEX1 = 7,
GEOM_RESULT_TEX2 = 8,
GEOM_RESULT_TEX3 = 9,
GEOM_RESULT_TEX4 = 10,
GEOM_RESULT_TEX5 = 11,
GEOM_RESULT_TEX6 = 12,
GEOM_RESULT_TEX7 = 13,
GEOM_RESULT_PSIZ = 14,
GEOM_RESULT_CLPV = 15,
GEOM_RESULT_PRID = 16,
GEOM_RESULT_LAYR = 17,
GEOM_RESULT_VAR0 = 18, /**< shader varying, should really be 16 */
/* ### we need to -2 because var0 is 18 instead 16 like in the others */
GEOM_RESULT_MAX = (GEOM_RESULT_VAR0 + MAX_VARYING - 2)
} gl_geom_result;
/*@}*/
/**
* Indexes for fragment program input attributes.
*/
typedef enum
{
FRAG_ATTRIB_WPOS = 0,
FRAG_ATTRIB_COL0 = 1,
FRAG_ATTRIB_COL1 = 2,
FRAG_ATTRIB_FOGC = 3,
FRAG_ATTRIB_TEX0 = 4,
FRAG_ATTRIB_TEX1 = 5,
FRAG_ATTRIB_TEX2 = 6,
FRAG_ATTRIB_TEX3 = 7,
FRAG_ATTRIB_TEX4 = 8,
FRAG_ATTRIB_TEX5 = 9,
FRAG_ATTRIB_TEX6 = 10,
FRAG_ATTRIB_TEX7 = 11,
FRAG_ATTRIB_FACE = 12, /**< front/back face */
FRAG_ATTRIB_PNTC = 13, /**< sprite/point coord */
FRAG_ATTRIB_VAR0 = 14, /**< shader varying */
FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING)
} gl_frag_attrib;
/**
* Bitflags for fragment program input attributes.
*/
/*@{*/
#define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS)
#define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0)
#define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1)
#define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC)
#define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE)
#define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC)
#define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0)
#define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1)
#define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2)
#define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3)
#define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4)
#define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5)
#define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6)
#define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7)
#define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0)
#define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U))
#define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V))
#define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \
FRAG_BIT_TEX1| \
FRAG_BIT_TEX2| \
FRAG_BIT_TEX3| \
FRAG_BIT_TEX4| \
FRAG_BIT_TEX5| \
FRAG_BIT_TEX6| \
FRAG_BIT_TEX7)
/*@}*/
/**
* Fragment program results
*/
typedef enum
{
FRAG_RESULT_DEPTH = 0,
FRAG_RESULT_STENCIL = 1,
FRAG_RESULT_COLOR = 2,
FRAG_RESULT_DATA0 = 3,
FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS)
} gl_frag_result;
/**
* Indexes for all renderbuffers
*/
typedef enum
{
/* the four standard color buffers */
BUFFER_FRONT_LEFT,
BUFFER_BACK_LEFT,
BUFFER_FRONT_RIGHT,
BUFFER_BACK_RIGHT,
BUFFER_DEPTH,
BUFFER_STENCIL,
BUFFER_ACCUM,
/* optional aux buffer */
BUFFER_AUX0,
/* generic renderbuffers */
BUFFER_COLOR0,
BUFFER_COLOR1,
BUFFER_COLOR2,
BUFFER_COLOR3,
BUFFER_COLOR4,
BUFFER_COLOR5,
BUFFER_COLOR6,
BUFFER_COLOR7,
BUFFER_COUNT
} gl_buffer_index;
/**
* Bit flags for all renderbuffers
*/
#define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
#define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
#define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
#define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
#define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
#define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
#define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
#define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
#define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
#define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
#define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
#define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
#define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
#define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
#define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
#define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
#define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
#define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
#define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
/**
* Mask of all the color buffer bits (but not accum).
*/
#define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
BUFFER_BIT_BACK_LEFT | \
BUFFER_BIT_FRONT_RIGHT | \
BUFFER_BIT_BACK_RIGHT | \
BUFFER_BIT_AUX0 | \
BUFFER_BIT_COLOR0 | \
BUFFER_BIT_COLOR1 | \
BUFFER_BIT_COLOR2 | \
BUFFER_BIT_COLOR3 | \
BUFFER_BIT_COLOR4 | \
BUFFER_BIT_COLOR5 | \
BUFFER_BIT_COLOR6 | \
BUFFER_BIT_COLOR7)
/**
* Framebuffer configuration (aka visual / pixelformat)
* Note: some of these fields should be boolean, but it appears that
* code in drivers/dri/common/util.c requires int-sized fields.
*/
struct gl_config
{
GLboolean rgbMode;
GLboolean floatMode;
GLboolean colorIndexMode; /* XXX is this used anywhere? */
GLuint doubleBufferMode;
GLuint stereoMode;
GLboolean haveAccumBuffer;
GLboolean haveDepthBuffer;
GLboolean haveStencilBuffer;
GLint redBits, greenBits, blueBits, alphaBits; /* bits per comp */
GLuint redMask, greenMask, blueMask, alphaMask;
GLint rgbBits; /* total bits for rgb */
GLint indexBits; /* total bits for colorindex */
GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
GLint depthBits;
GLint stencilBits;
GLint numAuxBuffers;
GLint level;
/* EXT_visual_rating / GLX 1.2 */
GLint visualRating;
/* EXT_visual_info / GLX 1.2 */
GLint transparentPixel;
/* colors are floats scaled to ints */
GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha;
GLint transparentIndex;
/* ARB_multisample / SGIS_multisample */
GLint sampleBuffers;
GLint samples;
/* SGIX_pbuffer / GLX 1.3 */
GLint maxPbufferWidth;
GLint maxPbufferHeight;
GLint maxPbufferPixels;
GLint optimalPbufferWidth; /* Only for SGIX_pbuffer. */
GLint optimalPbufferHeight; /* Only for SGIX_pbuffer. */
/* OML_swap_method */
GLint swapMethod;
/* EXT_texture_from_pixmap */
GLint bindToTextureRgb;
GLint bindToTextureRgba;
GLint bindToMipmapTexture;
GLint bindToTextureTargets;
GLint yInverted;
};
/**
* Data structure for color tables
*/
struct gl_color_table
{
GLenum InternalFormat; /**< The user-specified format */
GLenum _BaseFormat; /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */
GLuint Size; /**< number of entries in table */
GLfloat *TableF; /**< Color table, floating point values */
GLubyte *TableUB; /**< Color table, ubyte values */
GLubyte RedSize;
GLubyte GreenSize;
GLubyte BlueSize;
GLubyte AlphaSize;
GLubyte LuminanceSize;
GLubyte IntensitySize;
};
/**
* \name Bit flags used for updating material values.
*/
/*@{*/
#define MAT_ATTRIB_FRONT_AMBIENT 0
#define MAT_ATTRIB_BACK_AMBIENT 1
#define MAT_ATTRIB_FRONT_DIFFUSE 2
#define MAT_ATTRIB_BACK_DIFFUSE 3
#define MAT_ATTRIB_FRONT_SPECULAR 4
#define MAT_ATTRIB_BACK_SPECULAR 5
#define MAT_ATTRIB_FRONT_EMISSION 6
#define MAT_ATTRIB_BACK_EMISSION 7
#define MAT_ATTRIB_FRONT_SHININESS 8
#define MAT_ATTRIB_BACK_SHININESS 9
#define MAT_ATTRIB_FRONT_INDEXES 10
#define MAT_ATTRIB_BACK_INDEXES 11
#define MAT_ATTRIB_MAX 12
#define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
#define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
#define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
#define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
#define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
#define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
#define MAT_INDEX_AMBIENT 0
#define MAT_INDEX_DIFFUSE 1
#define MAT_INDEX_SPECULAR 2
#define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
#define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
#define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
#define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
#define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
#define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
#define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
#define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
#define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
#define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
#define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
#define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
#define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
MAT_BIT_FRONT_AMBIENT | \
MAT_BIT_FRONT_DIFFUSE | \
MAT_BIT_FRONT_SPECULAR | \
MAT_BIT_FRONT_SHININESS | \
MAT_BIT_FRONT_INDEXES)
#define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
MAT_BIT_BACK_AMBIENT | \
MAT_BIT_BACK_DIFFUSE | \
MAT_BIT_BACK_SPECULAR | \
MAT_BIT_BACK_SHININESS | \
MAT_BIT_BACK_INDEXES)
#define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
/*@}*/
#define EXP_TABLE_SIZE 512 /**< Specular exponent lookup table sizes */
#define SHINE_TABLE_SIZE 256 /**< Material shininess lookup table sizes */
/**
* Material shininess lookup table.
*/
struct gl_shine_tab
{
struct gl_shine_tab *next, *prev;
GLfloat tab[SHINE_TABLE_SIZE+1];
GLfloat shininess;
GLuint refcount;
};
/**
* Light source state.
*/
struct gl_light
{
struct gl_light *next; /**< double linked list with sentinel */
struct gl_light *prev;
GLfloat Ambient[4]; /**< ambient color */
GLfloat Diffuse[4]; /**< diffuse color */
GLfloat Specular[4]; /**< specular color */
GLfloat EyePosition[4]; /**< position in eye coordinates */
GLfloat SpotDirection[4]; /**< spotlight direction in eye coordinates */
GLfloat SpotExponent;
GLfloat SpotCutoff; /**< in degrees */
GLfloat _CosCutoffNeg; /**< = cos(SpotCutoff) */
GLfloat _CosCutoff; /**< = MAX(0, cos(SpotCutoff)) */
GLfloat ConstantAttenuation;
GLfloat LinearAttenuation;
GLfloat QuadraticAttenuation;
GLboolean Enabled; /**< On/off flag */
/**
* \name Derived fields
*/
/*@{*/
GLbitfield _Flags; /**< State */
GLfloat _Position[4]; /**< position in eye/obj coordinates */
GLfloat _VP_inf_norm[3]; /**< Norm direction to infinite light */
GLfloat _h_inf_norm[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
GLfloat _NormSpotDirection[4]; /**< normalized spotlight direction */
GLfloat _VP_inf_spot_attenuation;
GLfloat _SpotExpTable[EXP_TABLE_SIZE][2]; /**< to replace a pow() call */
GLfloat _MatAmbient[2][3]; /**< material ambient * light ambient */
GLfloat _MatDiffuse[2][3]; /**< material diffuse * light diffuse */
GLfloat _MatSpecular[2][3]; /**< material spec * light specular */
GLfloat _dli; /**< CI diffuse light intensity */
GLfloat _sli; /**< CI specular light intensity */
/*@}*/
};
/**
* Light model state.
*/
struct gl_lightmodel
{
GLfloat Ambient[4]; /**< ambient color */
GLboolean LocalViewer; /**< Local (or infinite) view point? */
GLboolean TwoSide; /**< Two (or one) sided lighting? */
GLenum ColorControl; /**< either GL_SINGLE_COLOR
* or GL_SEPARATE_SPECULAR_COLOR */
};
/**
* Material state.
*/
struct gl_material
{
GLfloat Attrib[MAT_ATTRIB_MAX][4];
};
/**
* Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
*/
struct gl_accum_attrib
{
GLfloat ClearColor[4]; /**< Accumulation buffer clear color */
};
/**
* Color buffer attribute group (GL_COLOR_BUFFER_BIT).
*/
struct gl_colorbuffer_attrib
{
GLuint ClearIndex; /**< Index to use for glClear */
GLclampf ClearColor[4]; /**< Color to use for glClear */
GLuint IndexMask; /**< Color index write mask */
GLubyte ColorMask[MAX_DRAW_BUFFERS][4];/**< Each flag is 0xff or 0x0 */
GLenum DrawBuffer[MAX_DRAW_BUFFERS]; /**< Which buffer to draw into */
/**
* \name alpha testing
*/
/*@{*/
GLboolean AlphaEnabled; /**< Alpha test enabled flag */
GLenum AlphaFunc; /**< Alpha test function */
GLclampf AlphaRef; /**< Alpha reference value */
/*@}*/
/**
* \name Blending
*/
/*@{*/
GLbitfield BlendEnabled; /**< Per-buffer blend enable flags */
GLenum BlendSrcRGB; /**< Blending source operator */
GLenum BlendDstRGB; /**< Blending destination operator */
GLenum BlendSrcA; /**< GL_INGR_blend_func_separate */
GLenum BlendDstA; /**< GL_INGR_blend_func_separate */
GLenum BlendEquationRGB; /**< Blending equation */
GLenum BlendEquationA; /**< GL_EXT_blend_equation_separate */
GLfloat BlendColor[4]; /**< Blending color */
/*@}*/
/**
* \name Logic op
*/
/*@{*/
GLenum LogicOp; /**< Logic operator */
GLboolean IndexLogicOpEnabled; /**< Color index logic op enabled flag */
GLboolean ColorLogicOpEnabled; /**< RGBA logic op enabled flag */
GLboolean _LogicOpEnabled; /**< RGBA logic op + EXT_blend_logic_op enabled flag */
/*@}*/
GLboolean DitherFlag; /**< Dither enable flag */
GLenum ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
GLenum ClampReadColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
};
/**
* Current attribute group (GL_CURRENT_BIT).
*/
struct gl_current_attrib
{
/**
* \name Current vertex attributes.
* \note Values are valid only after FLUSH_VERTICES has been called.
* \note Index and Edgeflag current values are stored as floats in the
* SIX and SEVEN attribute slots.
*/
GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Position, color, texcoords, etc */
/**
* \name Current raster position attributes (always valid).
* \note This set of attributes is very similar to the SWvertex struct.
*/
/*@{*/
GLfloat RasterPos[4];
GLfloat RasterDistance;
GLfloat RasterColor[4];
GLfloat RasterSecondaryColor[4];
GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4];
GLboolean RasterPosValid;
/*@}*/
};
/**
* Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
*/
struct gl_depthbuffer_attrib
{
GLenum Func; /**< Function for depth buffer compare */
GLclampd Clear; /**< Value to clear depth buffer to */
GLboolean Test; /**< Depth buffering enabled flag */
GLboolean Mask; /**< Depth buffer writable? */
GLboolean BoundsTest; /**< GL_EXT_depth_bounds_test */
GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */
};
/**
* Evaluator attribute group (GL_EVAL_BIT).
*/
struct gl_eval_attrib
{
/**
* \name Enable bits
*/
/*@{*/
GLboolean Map1Color4;
GLboolean Map1Index;
GLboolean Map1Normal;
GLboolean Map1TextureCoord1;
GLboolean Map1TextureCoord2;
GLboolean Map1TextureCoord3;
GLboolean Map1TextureCoord4;
GLboolean Map1Vertex3;
GLboolean Map1Vertex4;
GLboolean Map1Attrib[16]; /* GL_NV_vertex_program */
GLboolean Map2Color4;
GLboolean Map2Index;
GLboolean Map2Normal;
GLboolean Map2TextureCoord1;
GLboolean Map2TextureCoord2;
GLboolean Map2TextureCoord3;
GLboolean Map2TextureCoord4;
GLboolean Map2Vertex3;
GLboolean Map2Vertex4;
GLboolean Map2Attrib[16]; /* GL_NV_vertex_program */
GLboolean AutoNormal;
/*@}*/
/**
* \name Map Grid endpoints and divisions and calculated du values
*/
/*@{*/
GLint MapGrid1un;
GLfloat MapGrid1u1, MapGrid1u2, MapGrid1du;
GLint MapGrid2un, MapGrid2vn;
GLfloat MapGrid2u1, MapGrid2u2, MapGrid2du;
GLfloat MapGrid2v1, MapGrid2v2, MapGrid2dv;
/*@}*/
};
/**
* Fog attribute group (GL_FOG_BIT).
*/
struct gl_fog_attrib
{
GLboolean Enabled; /**< Fog enabled flag */
GLfloat Color[4]; /**< Fog color */
GLfloat Density; /**< Density >= 0.0 */
GLfloat Start; /**< Start distance in eye coords */
GLfloat End; /**< End distance in eye coords */
GLfloat Index; /**< Fog index */
GLenum Mode; /**< Fog mode */
GLboolean ColorSumEnabled;
GLenum FogCoordinateSource; /**< GL_EXT_fog_coord */
GLfloat _Scale; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
};
/**
* Hint attribute group (GL_HINT_BIT).
*
* Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
*/
struct gl_hint_attrib
{
GLenum PerspectiveCorrection;
GLenum PointSmooth;
GLenum LineSmooth;
GLenum PolygonSmooth;
GLenum Fog;
GLenum ClipVolumeClipping; /**< GL_EXT_clip_volume_hint */
GLenum TextureCompression; /**< GL_ARB_texture_compression */
GLenum GenerateMipmap; /**< GL_SGIS_generate_mipmap */
GLenum FragmentShaderDerivative; /**< GL_ARB_fragment_shader */
};
/**
* Light state flags.
*/
/*@{*/
#define LIGHT_SPOT 0x1
#define LIGHT_LOCAL_VIEWER 0x2
#define LIGHT_POSITIONAL 0x4
#define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
/*@}*/
/**
* Lighting attribute group (GL_LIGHT_BIT).
*/
struct gl_light_attrib
{
struct gl_light Light[MAX_LIGHTS]; /**< Array of light sources */
struct gl_lightmodel Model; /**< Lighting model */
/**
* Must flush FLUSH_VERTICES before referencing:
*/
/*@{*/
struct gl_material Material; /**< Includes front & back values */
/*@}*/
GLboolean Enabled; /**< Lighting enabled flag */
GLenum ShadeModel; /**< GL_FLAT or GL_SMOOTH */
GLenum ProvokingVertex; /**< GL_EXT_provoking_vertex */
GLenum ColorMaterialFace; /**< GL_FRONT, BACK or FRONT_AND_BACK */
GLenum ColorMaterialMode; /**< GL_AMBIENT, GL_DIFFUSE, etc */
GLbitfield ColorMaterialBitmask; /**< bitmask formed from Face and Mode */
GLboolean ColorMaterialEnabled;
GLenum ClampVertexColor;
struct gl_light EnabledList; /**< List sentinel */
/**
* Derived state for optimizations:
*/
/*@{*/
GLboolean _NeedEyeCoords;
GLboolean _NeedVertices; /**< Use fast shader? */
GLbitfield _Flags; /**< LIGHT_* flags, see above */
GLfloat _BaseColor[2][3];
/*@}*/
};
/**
* Line attribute group (GL_LINE_BIT).
*/
struct gl_line_attrib
{
GLboolean SmoothFlag; /**< GL_LINE_SMOOTH enabled? */
GLboolean StippleFlag; /**< GL_LINE_STIPPLE enabled? */
GLushort StipplePattern; /**< Stipple pattern */
GLint StippleFactor; /**< Stipple repeat factor */
GLfloat Width; /**< Line width */
};
/**
* Display list attribute group (GL_LIST_BIT).
*/
struct gl_list_attrib
{
GLuint ListBase;
};
/**
* Multisample attribute group (GL_MULTISAMPLE_BIT).
*/
struct gl_multisample_attrib
{
GLboolean Enabled;
GLboolean _Enabled; /**< true if Enabled and multisample buffer */
GLboolean SampleAlphaToCoverage;
GLboolean SampleAlphaToOne;
GLboolean SampleCoverage;
GLfloat SampleCoverageValue;
GLboolean SampleCoverageInvert;
};
/**
* A pixelmap (see glPixelMap)
*/
struct gl_pixelmap
{
GLint Size;
GLfloat Map[MAX_PIXEL_MAP_TABLE];
GLubyte Map8[MAX_PIXEL_MAP_TABLE]; /**< converted to 8-bit color */
};
/**
* Collection of all pixelmaps
*/
struct gl_pixelmaps
{
struct gl_pixelmap RtoR; /**< i.e. GL_PIXEL_MAP_R_TO_R */
struct gl_pixelmap GtoG;
struct gl_pixelmap BtoB;
struct gl_pixelmap AtoA;
struct gl_pixelmap ItoR;
struct gl_pixelmap ItoG;
struct gl_pixelmap ItoB;
struct gl_pixelmap ItoA;
struct gl_pixelmap ItoI;
struct gl_pixelmap StoS;
};
/**
* Pixel attribute group (GL_PIXEL_MODE_BIT).
*/
struct gl_pixel_attrib
{
GLenum ReadBuffer; /**< source buffer for glRead/CopyPixels() */
/*--- Begin Pixel Transfer State ---*/
/* Fields are in the order in which they're applied... */
/** Scale & Bias (index shift, offset) */
/*@{*/
GLfloat RedBias, RedScale;
GLfloat GreenBias, GreenScale;
GLfloat BlueBias, BlueScale;
GLfloat AlphaBias, AlphaScale;
GLfloat DepthBias, DepthScale;
GLint IndexShift, IndexOffset;
/*@}*/
/* Pixel Maps */
/* Note: actual pixel maps are not part of this attrib group */
GLboolean MapColorFlag;
GLboolean MapStencilFlag;
/*--- End Pixel Transfer State ---*/
/** glPixelZoom */
GLfloat ZoomX, ZoomY;
/** GL_SGI_texture_color_table */
GLfloat TextureColorTableScale[4]; /**< RGBA */
GLfloat TextureColorTableBias[4]; /**< RGBA */
};
/**
* Point attribute group (GL_POINT_BIT).
*/
struct gl_point_attrib
{
GLboolean SmoothFlag; /**< True if GL_POINT_SMOOTH is enabled */
GLfloat Size; /**< User-specified point size */
GLfloat Params[3]; /**< GL_EXT_point_parameters */
GLfloat MinSize, MaxSize; /**< GL_EXT_point_parameters */
GLfloat Threshold; /**< GL_EXT_point_parameters */
GLboolean _Attenuated; /**< True if Params != [1, 0, 0] */
GLboolean PointSprite; /**< GL_NV/ARB_point_sprite */
GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite*/
GLenum SpriteRMode; /**< GL_NV_point_sprite (only!) */
GLenum SpriteOrigin; /**< GL_ARB_point_sprite */
};
/**
* Polygon attribute group (GL_POLYGON_BIT).
*/
struct gl_polygon_attrib
{
GLenum FrontFace; /**< Either GL_CW or GL_CCW */
GLenum FrontMode; /**< Either GL_POINT, GL_LINE or GL_FILL */
GLenum BackMode; /**< Either GL_POINT, GL_LINE or GL_FILL */
GLboolean _FrontBit; /**< 0=GL_CCW, 1=GL_CW */
GLboolean CullFlag; /**< Culling on/off flag */
GLboolean SmoothFlag; /**< True if GL_POLYGON_SMOOTH is enabled */
GLboolean StippleFlag; /**< True if GL_POLYGON_STIPPLE is enabled */
GLenum CullFaceMode; /**< Culling mode GL_FRONT or GL_BACK */
GLfloat OffsetFactor; /**< Polygon offset factor, from user */
GLfloat OffsetUnits; /**< Polygon offset units, from user */
GLboolean OffsetPoint; /**< Offset in GL_POINT mode */
GLboolean OffsetLine; /**< Offset in GL_LINE mode */
GLboolean OffsetFill; /**< Offset in GL_FILL mode */
};
/**
* Scissor attributes (GL_SCISSOR_BIT).
*/
struct gl_scissor_attrib
{
GLboolean Enabled; /**< Scissor test enabled? */
GLint X, Y; /**< Lower left corner of box */
GLsizei Width, Height; /**< Size of box */
};
/**
* Stencil attribute group (GL_STENCIL_BUFFER_BIT).
*
* Three sets of stencil data are tracked so that OpenGL 2.0,
* GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
* simultaneously. In each of the stencil state arrays, element 0 corresponds
* to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
* GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
* GL_EXT_stencil_two_side GL_BACK state.
*
* The derived value \c _BackFace is either 1 or 2 depending on whether or
* not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
*
* The derived value \c _TestTwoSide is set when the front-face and back-face
* stencil state are different.
*/
struct gl_stencil_attrib
{
GLboolean Enabled; /**< Enabled flag */
GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */
GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 2) */
GLboolean _Enabled; /**< Enabled and stencil buffer present */
GLboolean _TestTwoSide;
GLubyte _BackFace; /**< Current back stencil state (1 or 2) */
GLenum Function[3]; /**< Stencil function */
GLenum FailFunc[3]; /**< Fail function */
GLenum ZPassFunc[3]; /**< Depth buffer pass function */
GLenum ZFailFunc[3]; /**< Depth buffer fail function */
GLint Ref[3]; /**< Reference value */
GLuint ValueMask[3]; /**< Value mask */
GLuint WriteMask[3]; /**< Write mask */
GLuint Clear; /**< Clear value */
};
/**
* An index for each type of texture object. These correspond to the GL
* texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
* Note: the order is from highest priority to lowest priority.
*/
typedef enum
{
TEXTURE_2D_ARRAY_INDEX,
TEXTURE_1D_ARRAY_INDEX,
TEXTURE_CUBE_INDEX,
TEXTURE_3D_INDEX,
TEXTURE_RECT_INDEX,
TEXTURE_2D_INDEX,
TEXTURE_1D_INDEX,
NUM_TEXTURE_TARGETS
} gl_texture_index;
/**
* Bit flags for each type of texture object
* Used for Texture.Unit[]._ReallyEnabled flags.
*/
/*@{*/
#define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
#define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
#define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
#define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
#define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
#define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
#define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
/*@}*/
/**
* TexGenEnabled flags.
*/
/*@{*/
#define S_BIT 1
#define T_BIT 2
#define R_BIT 4
#define Q_BIT 8
#define STR_BITS (S_BIT | T_BIT | R_BIT)
/*@}*/
/**
* Bit flag versions of the corresponding GL_ constants.
*/
/*@{*/
#define TEXGEN_SPHERE_MAP 0x1
#define TEXGEN_OBJ_LINEAR 0x2
#define TEXGEN_EYE_LINEAR 0x4
#define TEXGEN_REFLECTION_MAP_NV 0x8
#define TEXGEN_NORMAL_MAP_NV 0x10
#define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
TEXGEN_REFLECTION_MAP_NV | \
TEXGEN_NORMAL_MAP_NV)
#define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
TEXGEN_REFLECTION_MAP_NV | \
TEXGEN_NORMAL_MAP_NV | \
TEXGEN_EYE_LINEAR)
/*@}*/
/** Tex-gen enabled for texture unit? */
#define ENABLE_TEXGEN(unit) (1 << (unit))
/** Non-identity texture matrix for texture unit? */
#define ENABLE_TEXMAT(unit) (1 << (unit))
/**
* Texel fetch function prototype. We use texel fetch functions to
* extract RGBA, color indexes and depth components out of 1D, 2D and 3D
* texture images. These functions help to isolate us from the gritty
* details of all the various texture image encodings.
*
* \param texImage texture image.
* \param col texel column.
* \param row texel row.
* \param img texel image level/layer.
* \param texelOut output texel (up to 4 GLchans)
*/
typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage,
GLint col, GLint row, GLint img,
GLchan *texelOut );
/**
* As above, but returns floats.
* Used for depth component images and for upcoming signed/float
* texture images.
*/
typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage,
GLint col, GLint row, GLint img,
GLfloat *texelOut );
typedef void (*StoreTexelFunc)(struct gl_texture_image *texImage,
GLint col, GLint row, GLint img,
const void *texel);
/**
* Texture image state. Describes the dimensions of a texture image,
* the texel format and pointers to Texel Fetch functions.
*/
struct gl_texture_image
{
GLint InternalFormat; /**< Internal format as given by the user */
GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
* GL_LUMINANCE, GL_LUMINANCE_ALPHA,
* GL_INTENSITY, GL_COLOR_INDEX,
* GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT
* only. Used for choosing TexEnv arithmetic.
*/
GLuint TexFormat; /**< The actual format: MESA_FORMAT_x */
GLuint Border; /**< 0 or 1 */
GLuint Width; /**< = 2^WidthLog2 + 2*Border */
GLuint Height; /**< = 2^HeightLog2 + 2*Border */
GLuint Depth; /**< = 2^DepthLog2 + 2*Border */
GLuint Width2; /**< = Width - 2*Border */
GLuint Height2; /**< = Height - 2*Border */
GLuint Depth2; /**< = Depth - 2*Border */
GLuint WidthLog2; /**< = log2(Width2) */
GLuint HeightLog2; /**< = log2(Height2) */
GLuint DepthLog2; /**< = log2(Depth2) */
GLuint MaxLog2; /**< = MAX(WidthLog2, HeightLog2) */
GLfloat WidthScale; /**< used for mipmap LOD computation */
GLfloat HeightScale; /**< used for mipmap LOD computation */
GLfloat DepthScale; /**< used for mipmap LOD computation */
GLboolean IsClientData; /**< Data owned by client? */
GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */
struct gl_texture_object *TexObject; /**< Pointer back to parent object */
FetchTexelFuncC FetchTexelc; /**< GLchan texel fetch function pointer */
FetchTexelFuncF FetchTexelf; /**< Float texel fetch function pointer */
GLuint RowStride; /**< Padded width in units of texels */
GLuint *ImageOffsets; /**< if 3D texture: array [Depth] of offsets to
each 2D slice in 'Data', in texels */
GLvoid *Data; /**< Image data, accessed via FetchTexel() */
/**
* \name For device driver:
*/
/*@{*/
void *DriverData; /**< Arbitrary device driver data */
/*@}*/
};
/**
* Indexes for cube map faces.
*/
typedef enum
{
FACE_POS_X = 0,
FACE_NEG_X = 1,
FACE_POS_Y = 2,
FACE_NEG_Y = 3,
FACE_POS_Z = 4,
FACE_NEG_Z = 5,
MAX_FACES = 6
} gl_face_index;
/**
* Texture object state. Contains the array of mipmap images, border color,
* wrap modes, filter modes, shadow/texcompare state, and the per-texture
* color palette.
*/
struct gl_texture_object
{
_glthread_Mutex Mutex; /**< for thread safety */
GLint RefCount; /**< reference count */
GLuint Name; /**< the user-visible texture object ID */
GLenum Target; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
GLfloat Priority; /**< in [0,1] */
union {
GLfloat f[4];
GLuint ui[4];
GLint i[4];
} BorderColor; /**< Interpreted according to texture format */
GLenum WrapS; /**< S-axis texture image wrap mode */
GLenum WrapT; /**< T-axis texture image wrap mode */
GLenum WrapR; /**< R-axis texture image wrap mode */
GLenum MinFilter; /**< minification filter */
GLenum MagFilter; /**< magnification filter */
GLfloat MinLod; /**< min lambda, OpenGL 1.2 */
GLfloat MaxLod; /**< max lambda, OpenGL 1.2 */
GLfloat LodBias; /**< OpenGL 1.4 */
GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */
GLint MaxLevel; /**< max mipmap level, OpenGL 1.2 */
GLfloat MaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */
GLenum CompareMode; /**< GL_ARB_shadow */
GLenum CompareFunc; /**< GL_ARB_shadow */
GLfloat CompareFailValue; /**< GL_ARB_shadow_ambient */
GLenum DepthMode; /**< GL_ARB_depth_texture */
GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */
GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */
GLint CropRect[4]; /**< GL_OES_draw_texture */
GLenum Swizzle[4]; /**< GL_EXT_texture_swizzle */
GLuint _Swizzle; /**< same as Swizzle, but SWIZZLE_* format */
GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */
GLboolean _Complete; /**< Is texture object complete? */
GLboolean _RenderToTexture; /**< Any rendering to this texture? */
GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */
/** Actual texture images, indexed by [cube face] and [mipmap level] */
struct gl_texture_image *Image[MAX_FACES][MAX_TEXTURE_LEVELS];
/** GL_EXT_paletted_texture */
struct gl_color_table Palette;
/**
* \name For device driver.
* Note: instead of attaching driver data to this pointer, it's preferable
* to instead use this struct as a base class for your own texture object
* class. Driver->NewTextureObject() can be used to implement the
* allocation.
*/
void *DriverData; /**< Arbitrary device driver data */
};
/** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
#define MAX_COMBINER_TERMS 4
/**
* Texture combine environment state.
*/
struct gl_tex_env_combine_state
{
GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
/** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
GLenum SourceRGB[MAX_COMBINER_TERMS];
GLenum SourceA[MAX_COMBINER_TERMS];
/** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
GLenum OperandRGB[MAX_COMBINER_TERMS];
GLenum OperandA[MAX_COMBINER_TERMS];
GLuint ScaleShiftRGB; /**< 0, 1 or 2 */
GLuint ScaleShiftA; /**< 0, 1 or 2 */
GLuint _NumArgsRGB; /**< Number of inputs used for the RGB combiner */
GLuint _NumArgsA; /**< Number of inputs used for the A combiner */
};
/**
* Texture coord generation state.
*/
struct gl_texgen
{
GLenum Mode; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
GLbitfield _ModeBit; /**< TEXGEN_x bit corresponding to Mode */
GLfloat ObjectPlane[4];
GLfloat EyePlane[4];
};
/**
* Texture unit state. Contains enable flags, texture environment/function/
* combiners, texgen state, pointers to current texture objects and
* post-filter color tables.
*/
struct gl_texture_unit
{
GLbitfield Enabled; /**< bitmask of TEXTURE_*_BIT flags */
GLbitfield _ReallyEnabled; /**< 0 or exactly one of TEXTURE_*_BIT flags */
GLenum EnvMode; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
GLfloat EnvColor[4];
struct gl_texgen GenS;
struct gl_texgen GenT;
struct gl_texgen GenR;
struct gl_texgen GenQ;
GLbitfield TexGenEnabled; /**< Bitwise-OR of [STRQ]_BIT values */
GLbitfield _GenFlags; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
GLfloat LodBias; /**< for biasing mipmap levels */
GLenum BumpTarget;
GLfloat RotMatrix[4]; /* 2x2 matrix */
/**
* \name GL_EXT_texture_env_combine
*/
struct gl_tex_env_combine_state Combine;
/**
* Derived state based on \c EnvMode and the \c BaseFormat of the
* currently enabled texture.
*/
struct gl_tex_env_combine_state _EnvMode;
/**
* Currently enabled combiner state. This will point to either
* \c Combine or \c _EnvMode.
*/
struct gl_tex_env_combine_state *_CurrentCombine;
/** Current texture object pointers */
struct gl_texture_object *CurrentTex[NUM_TEXTURE_TARGETS];
/** Points to highest priority, complete and enabled texture object */
struct gl_texture_object *_Current;
/** GL_SGI_texture_color_table */
/*@{*/
struct gl_color_table ColorTable;
struct gl_color_table ProxyColorTable;
GLboolean ColorTableEnabled;
/*@}*/
};
/**
* Texture attribute group (GL_TEXTURE_BIT).
*/
struct gl_texture_attrib
{
GLuint CurrentUnit; /**< GL_ACTIVE_TEXTURE */
struct gl_texture_unit Unit[MAX_COMBINED_TEXTURE_IMAGE_UNITS];
struct gl_texture_object *ProxyTex[NUM_TEXTURE_TARGETS];
/** GL_ARB_seamless_cubemap */
GLboolean CubeMapSeamless;
/** GL_EXT_shared_texture_palette */
GLboolean SharedPalette;
struct gl_color_table Palette;
/** Texture units/samplers used by vertex or fragment texturing */
GLbitfield _EnabledUnits;
/** Texture coord units/sets used for fragment texturing */
GLbitfield _EnabledCoordUnits;
/** Texture coord units that have texgen enabled */
GLbitfield _TexGenEnabled;
/** Texture coord units that have non-identity matrices */
GLbitfield _TexMatEnabled;
/** Bitwise-OR of all Texture.Unit[i]._GenFlags */
GLbitfield _GenFlags;
};
/**
* Transformation attribute group (GL_TRANSFORM_BIT).
*/
struct gl_transform_attrib
{
GLenum MatrixMode; /**< Matrix mode */
GLfloat EyeUserPlane[MAX_CLIP_PLANES][4]; /**< User clip planes */
GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4]; /**< derived */
GLbitfield ClipPlanesEnabled; /**< on/off bitmask */
GLboolean Normalize; /**< Normalize all normals? */
GLboolean RescaleNormals; /**< GL_EXT_rescale_normal */
GLboolean RasterPositionUnclipped; /**< GL_IBM_rasterpos_clip */
GLboolean DepthClamp; /**< GL_ARB_depth_clamp */
GLfloat CullEyePos[4];
GLfloat CullObjPos[4];
};
/**
* Viewport attribute group (GL_VIEWPORT_BIT).
*/
struct gl_viewport_attrib
{
GLint X, Y; /**< position */
GLsizei Width, Height; /**< size */
GLfloat Near, Far; /**< Depth buffer range */
GLmatrix _WindowMap; /**< Mapping transformation as a matrix. */
};
/**
* GL_ARB_vertex/pixel_buffer_object buffer object
*/
struct gl_buffer_object
{
_glthread_Mutex Mutex;
GLint RefCount;
GLuint Name;
GLenum Usage; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
GLsizeiptrARB Size; /**< Size of buffer storage in bytes */
GLubyte *Data; /**< Location of storage either in RAM or VRAM. */
/** Fields describing a mapped buffer */
/*@{*/
GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */
GLvoid *Pointer; /**< User-space address of mapping */
GLintptr Offset; /**< Mapped offset */
GLsizeiptr Length; /**< Mapped length */
/*@}*/
GLboolean Written; /**< Ever written to? (for debugging) */
GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */
};
/**
* Client pixel packing/unpacking attributes
*/
struct gl_pixelstore_attrib
{
GLint Alignment;
GLint RowLength;
GLint SkipPixels;
GLint SkipRows;
GLint ImageHeight;
GLint SkipImages;
GLboolean SwapBytes;
GLboolean LsbFirst;
GLboolean ClientStorage; /**< GL_APPLE_client_storage */
GLboolean Invert; /**< GL_MESA_pack_invert */
struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */
};
/**
* Client vertex array attributes
*/
struct gl_client_array
{
GLint Size; /**< components per element (1,2,3,4) */
GLenum Type; /**< datatype: GL_FLOAT, GL_INT, etc */
GLenum Format; /**< default: GL_RGBA, but may be GL_BGRA */
GLsizei Stride; /**< user-specified stride */
GLsizei StrideB; /**< actual stride in bytes */
const GLubyte *Ptr; /**< Points to array data */
GLboolean Enabled; /**< Enabled flag is a boolean */
GLboolean Normalized; /**< GL_ARB_vertex_program */
GLboolean Integer; /**< Integer-valued? */
GLuint _ElementSize; /**< size of each element in bytes */
struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */
GLuint _MaxElement; /**< max element index into array buffer + 1 */
};
/**
* Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object
* extension, but a nice encapsulation in any case.
*/
struct gl_array_object
{
/** Name of the array object as received from glGenVertexArrayAPPLE. */
GLuint Name;
GLint RefCount;
_glthread_Mutex Mutex;
GLboolean VBOonly; /**< require all arrays to live in VBOs? */
/** Conventional vertex arrays */
/*@{*/
struct gl_client_array Vertex;
struct gl_client_array Weight;
struct gl_client_array Normal;
struct gl_client_array Color;
struct gl_client_array SecondaryColor;
struct gl_client_array FogCoord;
struct gl_client_array Index;
struct gl_client_array EdgeFlag;
struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS];
struct gl_client_array PointSize;
/*@}*/
/**
* Generic arrays for vertex programs/shaders.
* For NV vertex programs, these attributes alias and take priority
* over the conventional attribs above. For ARB vertex programs and
* GLSL vertex shaders, these attributes are separate.
*/
struct gl_client_array VertexAttrib[MAX_VERTEX_GENERIC_ATTRIBS];
/** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */
GLbitfield _Enabled;
/**
* Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs
* we can determine the max legal (in bounds) glDrawElements array index.
*/
GLuint _MaxElement;
};
/**
* Vertex array state
*/
struct gl_array_attrib
{
/** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */
struct gl_array_object *ArrayObj;
/** The default vertex array object */
struct gl_array_object *DefaultArrayObj;
/** Array objects (GL_ARB/APPLE_vertex_array_object) */
struct _mesa_HashTable *Objects;
GLint ActiveTexture; /**< Client Active Texture */
GLuint LockFirst; /**< GL_EXT_compiled_vertex_array */
GLuint LockCount; /**< GL_EXT_compiled_vertex_array */
/** GL 3.1 (slightly different from GL_NV_primitive_restart) */
GLboolean PrimitiveRestart;
GLuint RestartIndex;
GLbitfield NewState; /**< mask of _NEW_ARRAY_* values */
/* GL_ARB_vertex_buffer_object */
struct gl_buffer_object *ArrayBufferObj;
struct gl_buffer_object *ElementArrayBufferObj;
};
/**
* Feedback buffer state
*/
struct gl_feedback
{
GLenum Type;
GLbitfield _Mask; /**< FB_* bits */
GLfloat *Buffer;
GLuint BufferSize;
GLuint Count;
};
/**
* Selection buffer state
*/
struct gl_selection
{
GLuint *Buffer; /**< selection buffer */
GLuint BufferSize; /**< size of the selection buffer */
GLuint BufferCount; /**< number of values in the selection buffer */
GLuint Hits; /**< number of records in the selection buffer */
GLuint NameStackDepth; /**< name stack depth */
GLuint NameStack[MAX_NAME_STACK_DEPTH]; /**< name stack */
GLboolean HitFlag; /**< hit flag */
GLfloat HitMinZ; /**< minimum hit depth */
GLfloat HitMaxZ; /**< maximum hit depth */
};
/**
* 1-D Evaluator control points
*/
struct gl_1d_map
{
GLuint Order; /**< Number of control points */
GLfloat u1, u2, du; /**< u1, u2, 1.0/(u2-u1) */
GLfloat *Points; /**< Points to contiguous control points */
};
/**
* 2-D Evaluator control points
*/
struct gl_2d_map
{
GLuint Uorder; /**< Number of control points in U dimension */
GLuint Vorder; /**< Number of control points in V dimension */
GLfloat u1, u2, du;
GLfloat v1, v2, dv;
GLfloat *Points; /**< Points to contiguous control points */
};
/**
* All evaluator control point state
*/
struct gl_evaluators
{
/**
* \name 1-D maps
*/
/*@{*/
struct gl_1d_map Map1Vertex3;
struct gl_1d_map Map1Vertex4;
struct gl_1d_map Map1Index;
struct gl_1d_map Map1Color4;
struct gl_1d_map Map1Normal;
struct gl_1d_map Map1Texture1;
struct gl_1d_map Map1Texture2;
struct gl_1d_map Map1Texture3;
struct gl_1d_map Map1Texture4;
struct gl_1d_map Map1Attrib[16]; /**< GL_NV_vertex_program */
/*@}*/
/**
* \name 2-D maps
*/
/*@{*/
struct gl_2d_map Map2Vertex3;
struct gl_2d_map Map2Vertex4;
struct gl_2d_map Map2Index;
struct gl_2d_map Map2Color4;
struct gl_2d_map Map2Normal;
struct gl_2d_map Map2Texture1;
struct gl_2d_map Map2Texture2;
struct gl_2d_map Map2Texture3;
struct gl_2d_map Map2Texture4;
struct gl_2d_map Map2Attrib[16]; /**< GL_NV_vertex_program */
/*@}*/
};
/**
* Names of the various vertex/fragment program register files, etc.
*
* NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
* All values should fit in a 4-bit field.
*
* NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM,
* PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to
* be "uniform" variables since they can only be set outside glBegin/End.
* They're also all stored in the same Parameters array.
*/
typedef enum
{
PROGRAM_TEMPORARY, /**< machine->Temporary[] */
PROGRAM_INPUT, /**< machine->Inputs[] */
PROGRAM_OUTPUT, /**< machine->Outputs[] */
PROGRAM_VARYING, /**< machine->Inputs[]/Outputs[] */
PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */
PROGRAM_ENV_PARAM, /**< gl_program->Parameters[] */
PROGRAM_STATE_VAR, /**< gl_program->Parameters[] */
PROGRAM_NAMED_PARAM, /**< gl_program->Parameters[] */
PROGRAM_CONSTANT, /**< gl_program->Parameters[] */
PROGRAM_UNIFORM, /**< gl_program->Parameters[] */
PROGRAM_WRITE_ONLY, /**< A dummy, write-only register */
PROGRAM_ADDRESS, /**< machine->AddressReg */
PROGRAM_SAMPLER, /**< for shader samplers, compile-time only */
PROGRAM_UNDEFINED, /**< Invalid/TBD value */
PROGRAM_FILE_MAX
} gl_register_file;
/** Vertex and fragment instructions */
struct prog_instruction;
struct gl_program_parameter_list;
struct gl_uniform_list;
/**
* Base class for any kind of program object
*/
struct gl_program
{
GLuint Id;
GLubyte *String; /**< Null-terminated program text */
GLint RefCount;
GLenum Target; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */
GLenum Format; /**< String encoding format */
GLboolean Resident;
struct prog_instruction *Instructions;
GLbitfield InputsRead; /**< Bitmask of which input regs are read */
GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */
GLbitfield InputFlags[MAX_PROGRAM_INPUTS]; /**< PROG_PARAM_BIT_x flags */
GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */
GLbitfield TexturesUsed[MAX_TEXTURE_UNITS]; /**< TEXTURE_x_BIT bitmask */
GLbitfield SamplersUsed; /**< Bitfield of which samplers are used */
GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */
/** Named parameters, constants, etc. from program text */
struct gl_program_parameter_list *Parameters;
/** Numbered local parameters */
GLfloat LocalParams[MAX_PROGRAM_LOCAL_PARAMS][4];
/** Vertex/fragment shader varying vars */
struct gl_program_parameter_list *Varying;
/** Vertex program user-defined attributes */
struct gl_program_parameter_list *Attributes;
/** Map from sampler unit to texture unit (set by glUniform1i()) */
GLubyte SamplerUnits[MAX_SAMPLERS];
/** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
gl_texture_index SamplerTargets[MAX_SAMPLERS];
/** Bitmask of which register files are read/written with indirect
* addressing. Mask of (1 << PROGRAM_x) bits.
*/
GLbitfield IndirectRegisterFiles;
/** Logical counts */
/*@{*/
GLuint NumInstructions;
GLuint NumTemporaries;
GLuint NumParameters;
GLuint NumAttributes;
GLuint NumAddressRegs;
GLuint NumAluInstructions;
GLuint NumTexInstructions;
GLuint NumTexIndirections;
/*@}*/
/** Native, actual h/w counts */
/*@{*/
GLuint NumNativeInstructions;
GLuint NumNativeTemporaries;
GLuint NumNativeParameters;
GLuint NumNativeAttributes;
GLuint NumNativeAddressRegs;
GLuint NumNativeAluInstructions;
GLuint NumNativeTexInstructions;
GLuint NumNativeTexIndirections;
/*@}*/
};
/** Vertex program object */
struct gl_vertex_program
{
struct gl_program Base; /**< base class */
GLboolean IsNVProgram; /**< is this a GL_NV_vertex_program program? */
GLboolean IsPositionInvariant;
};
/** Geometry program object */
struct gl_geometry_program
{
struct gl_program Base; /**< base class */
GLint VerticesOut;
GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
};
/** Fragment program object */
struct gl_fragment_program
{
struct gl_program Base; /**< base class */
GLenum FogOption;
GLboolean UsesKill; /**< shader uses KIL instruction */
GLboolean OriginUpperLeft;
GLboolean PixelCenterInteger;
};
/**
* State common to vertex and fragment programs.
*/
struct gl_program_state
{
GLint ErrorPos; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
const char *ErrorString; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
};
/**
* Context state for vertex programs.
*/
struct gl_vertex_program_state
{
GLboolean Enabled; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
GLboolean _Enabled; /**< Enabled and _valid_ user program? */
GLboolean PointSizeEnabled; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
GLboolean TwoSideEnabled; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
struct gl_vertex_program *Current; /**< User-bound vertex program */
/** Currently enabled and valid vertex program (including internal
* programs, user-defined vertex programs and GLSL vertex shaders).
* This is the program we must use when rendering.
*/
struct gl_vertex_program *_Current;
GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
/* For GL_NV_vertex_program only: */
GLenum TrackMatrix[MAX_PROGRAM_ENV_PARAMS / 4];
GLenum TrackMatrixTransform[MAX_PROGRAM_ENV_PARAMS / 4];
/** Should fixed-function T&L be implemented with a vertex prog? */
GLboolean _MaintainTnlProgram;
/** Program to emulate fixed-function T&L (see above) */
struct gl_vertex_program *_TnlProgram;
/** Cache of fixed-function programs */
struct gl_program_cache *Cache;
GLboolean _Overriden;
};
/**
* Context state for geometry programs.
*/
struct gl_geometry_program_state
{
GLboolean Enabled; /**< GL_ARB_GEOMETRY_SHADER4 */
GLboolean _Enabled; /**< Enabled and valid program? */
struct gl_geometry_program *Current; /**< user-bound geometry program */
/** Currently enabled and valid program (including internal programs
* and compiled shader programs).
*/
struct gl_geometry_program *_Current;
GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
/** Cache of fixed-function programs */
struct gl_program_cache *Cache;
};
/**
* Context state for fragment programs.
*/
struct gl_fragment_program_state
{
GLboolean Enabled; /**< User-set fragment program enable flag */
GLboolean _Enabled; /**< Enabled and _valid_ user program? */
struct gl_fragment_program *Current; /**< User-bound fragment program */
/** Currently enabled and valid fragment program (including internal
* programs, user-defined fragment programs and GLSL fragment shaders).
* This is the program we must use when rendering.
*/
struct gl_fragment_program *_Current;
GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
/** Should fixed-function texturing be implemented with a fragment prog? */
GLboolean _MaintainTexEnvProgram;
/** Program to emulate fixed-function texture env/combine (see above) */
struct gl_fragment_program *_TexEnvProgram;
/** Cache of fixed-function programs */
struct gl_program_cache *Cache;
};
/**
* ATI_fragment_shader runtime state
*/
#define ATI_FS_INPUT_PRIMARY 0
#define ATI_FS_INPUT_SECONDARY 1
struct atifs_instruction;
struct atifs_setupinst;
/**
* ATI fragment shader
*/
struct ati_fragment_shader
{
GLuint Id;
GLint RefCount;
struct atifs_instruction *Instructions[2];
struct atifs_setupinst *SetupInst[2];
GLfloat Constants[8][4];
GLbitfield LocalConstDef; /**< Indicates which constants have been set */
GLubyte numArithInstr[2];
GLubyte regsAssigned[2];
GLubyte NumPasses; /**< 1 or 2 */
GLubyte cur_pass;
GLubyte last_optype;
GLboolean interpinp1;
GLboolean isValid;
GLuint swizzlerq;
};
/**
* Context state for GL_ATI_fragment_shader
*/
struct gl_ati_fragment_shader_state
{
GLboolean Enabled;
GLboolean _Enabled; /**< enabled and valid shader? */
GLboolean Compiling;
GLfloat GlobalConstants[8][4];
struct ati_fragment_shader *Current;
};
/**
* Occlusion/timer query object.
*/
struct gl_query_object
{
GLenum Target; /**< The query target, when active */
GLuint Id; /**< hash table ID/name */
GLuint64EXT Result; /**< the counter */
GLboolean Active; /**< inside Begin/EndQuery */
GLboolean Ready; /**< result is ready? */
};
/**
* Context state for query objects.
*/
struct gl_query_state
{
struct _mesa_HashTable *QueryObjects;
struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */
struct gl_query_object *CurrentTimerObject; /* GL_EXT_timer_query */
/** GL_NV_conditional_render */
struct gl_query_object *CondRenderQuery;
/** GL_EXT_transform_feedback */
struct gl_query_object *PrimitivesGenerated;
struct gl_query_object *PrimitivesWritten;
/** GL_ARB_timer_query */
struct gl_query_object *TimeElapsed;
GLenum CondRenderMode;
};
/** Sync object state */
struct gl_sync_object {
struct simple_node link;
GLenum Type; /**< GL_SYNC_FENCE */
GLuint Name; /**< Fence name */
GLint RefCount; /**< Reference count */
GLboolean DeletePending; /**< Object was deleted while there were still
* live references (e.g., sync not yet finished)
*/
GLenum SyncCondition;
GLbitfield Flags; /**< Flags passed to glFenceSync */
GLuint StatusFlag:1; /**< Has the sync object been signaled? */
};
/** Set by #pragma directives */
struct gl_sl_pragmas
{
GLboolean IgnoreOptimize; /**< ignore #pragma optimize(on/off) ? */
GLboolean IgnoreDebug; /**< ignore #pragma debug(on/off) ? */
GLboolean Optimize; /**< defaults on */
GLboolean Debug; /**< defaults off */
};
/**
* A GLSL vertex or fragment shader object.
*/
struct gl_shader
{
GLenum Type; /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */
GLuint Name; /**< AKA the handle */
GLint RefCount; /**< Reference count */
GLboolean DeletePending;
GLboolean CompileStatus;
GLboolean Main; /**< shader defines main() */
GLboolean UnresolvedRefs;
const GLchar *Source; /**< Source code string */
GLuint SourceChecksum; /**< for debug/logging purposes */
struct gl_program *Program; /**< Post-compile assembly code */
GLchar *InfoLog;
struct gl_sl_pragmas Pragmas;
unsigned Version; /**< GLSL version used for linking */
struct exec_list *ir;
struct glsl_symbol_table *symbols;
/** Shaders containing built-in functions that are used for linking. */
struct gl_shader *builtins_to_link[16];
unsigned num_builtins_to_link;
};
/**
* A GLSL program object.
* Basically a linked collection of vertex and fragment shaders.
*/
struct gl_shader_program
{
GLenum Type; /**< Always GL_SHADER_PROGRAM (internal token) */
GLuint Name; /**< aka handle or ID */
GLint RefCount; /**< Reference count */
GLboolean DeletePending;
GLuint NumShaders; /**< number of attached shaders */
struct gl_shader **Shaders; /**< List of attached the shaders */
/** User-defined attribute bindings (glBindAttribLocation) */
struct gl_program_parameter_list *Attributes;
/** Transform feedback varyings */
struct {
GLenum BufferMode;
GLuint NumVarying;
GLchar **VaryingNames; /**< Array [NumVarying] of char * */
} TransformFeedback;
/** Geometry shader state - copied into gl_geometry_program at link time */
struct {
GLint VerticesOut;
GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
} Geom;
/* post-link info: */
struct gl_vertex_program *VertexProgram; /**< Linked vertex program */
struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */
struct gl_geometry_program *GeometryProgram; /**< Linked geometry prog */
struct gl_uniform_list *Uniforms;
struct gl_program_parameter_list *Varying;
GLboolean LinkStatus; /**< GL_LINK_STATUS */
GLboolean Validated;
GLboolean _Used; /**< Ever used for drawing? */
GLchar *InfoLog;
unsigned Version; /**< GLSL version used for linking */
/**
* Per-stage shaders resulting from the first stage of linking.
*
* Set of linked shaders for this program. The array is accessed using the
* \c MESA_SHADER_* defines. Entries for non-existent stages will be
* \c NULL.
*/
struct gl_shader *_LinkedShaders[MESA_SHADER_TYPES];
};
#define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
#define GLSL_LOG 0x2 /**< Write shaders to files */
#define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */
#define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */
#define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */
#define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */
#define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */
#define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */
/**
* Context state for GLSL vertex/fragment shaders.
*/
struct gl_shader_state
{
/**
* Programs used for rendering
*
* There is a separate program set for each shader stage. If
* GL_EXT_separate_shader_objects is not supported, each of these must point
* to \c NULL or to the same program.
*/
struct gl_shader_program *CurrentVertexProgram;
struct gl_shader_program *CurrentGeometryProgram;
struct gl_shader_program *CurrentFragmentProgram;
/**
* Program used by glUniform calls.
*
* Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
*/
struct gl_shader_program *ActiveProgram;
void *MemPool;
GLbitfield Flags; /**< Mask of GLSL_x flags */
};
/**
* Compiler options for a single GLSL shaders type
*/
struct gl_shader_compiler_options
{
/** Driver-selectable options: */
GLboolean EmitCondCodes; /**< Use condition codes? */
GLboolean EmitNVTempInitialization; /**< 0-fill NV temp registers */
/**
* Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't
* support control flow.
*/
GLboolean EmitNoIfs;
GLboolean EmitNoLoops;
GLboolean EmitNoFunctions;
GLboolean EmitNoCont; /**< Emit CONT opcode? */
GLboolean EmitNoMainReturn; /**< Emit CONT/RET opcodes? */
GLboolean EmitNoNoise; /**< Emit NOISE opcodes? */
GLboolean EmitNoPow; /**< Emit POW opcodes? */
/**
* \name Forms of indirect addressing the driver cannot do.
*/
/*@{*/
GLboolean EmitNoIndirectInput; /**< No indirect addressing of inputs */
GLboolean EmitNoIndirectOutput; /**< No indirect addressing of outputs */
GLboolean EmitNoIndirectTemp; /**< No indirect addressing of temps */
GLboolean EmitNoIndirectUniform; /**< No indirect addressing of constants */
/*@}*/
GLuint MaxUnrollIterations;
struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */
};
/**
* Transform feedback object state
*/
struct gl_transform_feedback_object
{
GLuint Name; /**< AKA the object ID */
GLint RefCount;
GLboolean Active; /**< Is transform feedback enabled? */
GLboolean Paused; /**< Is transform feedback paused? */
/** The feedback buffers */
GLuint BufferNames[MAX_FEEDBACK_ATTRIBS];
struct gl_buffer_object *Buffers[MAX_FEEDBACK_ATTRIBS];
/** Start of feedback data in dest buffer */
GLintptr Offset[MAX_FEEDBACK_ATTRIBS];
/** Max data to put into dest buffer (in bytes) */
GLsizeiptr Size[MAX_FEEDBACK_ATTRIBS];
};
/**
* Context state for transform feedback.
*/
struct gl_transform_feedback
{
GLenum Mode; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
GLboolean RasterDiscard; /**< GL_RASTERIZER_DISCARD */
/** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
struct gl_buffer_object *CurrentBuffer;
/** The table of all transform feedback objects */
struct _mesa_HashTable *Objects;
/** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
struct gl_transform_feedback_object *CurrentObject;
/** The default xform-fb object (Name==0) */
struct gl_transform_feedback_object *DefaultObject;
};
/**
* State which can be shared by multiple contexts:
*/
struct gl_shared_state
{
_glthread_Mutex Mutex; /**< for thread safety */
GLint RefCount; /**< Reference count */
struct _mesa_HashTable *DisplayList; /**< Display lists hash table */
struct _mesa_HashTable *TexObjects; /**< Texture objects hash table */
/** Default texture objects (shared by all texture units) */
struct gl_texture_object *DefaultTex[NUM_TEXTURE_TARGETS];
/** Fallback texture used when a bound texture is incomplete */
struct gl_texture_object *FallbackTex;
/**
* \name Thread safety and statechange notification for texture
* objects.
*
* \todo Improve the granularity of locking.
*/
/*@{*/
_glthread_Mutex TexMutex; /**< texobj thread safety */
GLuint TextureStateStamp; /**< state notification for shared tex */
/*@}*/
/** Default buffer object for vertex arrays that aren't in VBOs */
struct gl_buffer_object *NullBufferObj;
/**
* \name Vertex/geometry/fragment programs
*/
/*@{*/
struct _mesa_HashTable *Programs; /**< All vertex/fragment programs */
struct gl_vertex_program *DefaultVertexProgram;
struct gl_fragment_program *DefaultFragmentProgram;
struct gl_geometry_program *DefaultGeometryProgram;
/*@}*/
/* GL_ATI_fragment_shader */
struct _mesa_HashTable *ATIShaders;
struct ati_fragment_shader *DefaultFragmentShader;
struct _mesa_HashTable *BufferObjects;
/** Table of both gl_shader and gl_shader_program objects */
struct _mesa_HashTable *ShaderObjects;
/* GL_EXT_framebuffer_object */
struct _mesa_HashTable *RenderBuffers;
struct _mesa_HashTable *FrameBuffers;
/* GL_ARB_sync */
struct simple_node SyncObjects;
void *DriverData; /**< Device driver shared state */
};
/**
* A renderbuffer stores colors or depth values or stencil values.
* A framebuffer object will have a collection of these.
* Data are read/written to the buffer with a handful of Get/Put functions.
*
* Instances of this object are allocated with the Driver's NewRenderbuffer
* hook. Drivers will likely wrap this class inside a driver-specific
* class to simulate inheritance.
*/
struct gl_renderbuffer
{
#define RB_MAGIC 0xaabbccdd
int Magic; /** XXX TEMPORARY DEBUG INFO */
_glthread_Mutex Mutex; /**< for thread safety */
GLuint ClassID; /**< Useful for drivers */
GLuint Name;
GLint RefCount;
GLuint Width, Height;
GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */
GLenum InternalFormat; /**< The user-specified format */
GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
GL_STENCIL_INDEX. */
GLuint Format; /**< The actual format: MESA_FORMAT_x */
GLubyte NumSamples;
GLenum DataType; /**< Type of values passed to the Get/Put functions */
GLvoid *Data; /**< This may not be used by some kinds of RBs */
/* Used to wrap one renderbuffer around another: */
struct gl_renderbuffer *Wrapped;
/* Delete this renderbuffer */
void (*Delete)(struct gl_renderbuffer *rb);
/* Allocate new storage for this renderbuffer */
GLboolean (*AllocStorage)(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLenum internalFormat,
GLuint width, GLuint height);
/* Lock/Unlock are called before/after calling the Get/Put functions.
* Not sure this is the right place for these yet.
void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
*/
/* Return a pointer to the element/pixel at (x,y).
* Should return NULL if the buffer memory can't be directly addressed.
*/
void *(*GetPointer)(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLint x, GLint y);
/* Get/Read a row of values.
* The values will be of format _BaseFormat and type DataType.
*/
void (*GetRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values);
/* Get/Read values at arbitrary locations.
* The values will be of format _BaseFormat and type DataType.
*/
void (*GetValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
const GLint x[], const GLint y[], void *values);
/* Put/Write a row of values.
* The values will be of format _BaseFormat and type DataType.
*/
void (*PutRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, const void *values, const GLubyte *mask);
/* Put/Write a row of RGB values. This is a special-case routine that's
* only used for RGBA renderbuffers when the source data is GL_RGB. That's
* a common case for glDrawPixels and some triangle routines.
* The values will be of format GL_RGB and type DataType.
*/
void (*PutRowRGB)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, const void *values, const GLubyte *mask);
/* Put/Write a row of identical values.
* The values will be of format _BaseFormat and type DataType.
*/
void (*PutMonoRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, const void *value, const GLubyte *mask);
/* Put/Write values at arbitrary locations.
* The values will be of format _BaseFormat and type DataType.
*/
void (*PutValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
const GLint x[], const GLint y[], const void *values,
const GLubyte *mask);
/* Put/Write identical values at arbitrary locations.
* The values will be of format _BaseFormat and type DataType.
*/
void (*PutMonoValues)(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLuint count, const GLint x[], const GLint y[],
const void *value, const GLubyte *mask);
};
/**
* A renderbuffer attachment points to either a texture object (and specifies
* a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
*/
struct gl_renderbuffer_attachment
{
GLenum Type; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
GLboolean Complete;
/**
* If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
* application supplied renderbuffer object.
*/
struct gl_renderbuffer *Renderbuffer;
/**
* If \c Type is \c GL_TEXTURE, this stores a pointer to the application
* supplied texture object.
*/
struct gl_texture_object *Texture;
GLuint TextureLevel; /**< Attached mipmap level. */
GLuint CubeMapFace; /**< 0 .. 5, for cube map textures. */
GLuint Zoffset; /**< Slice for 3D textures, or layer for both 1D
* and 2D array textures */
};
/**
* A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
* In C++ terms, think of this as a base class from which device drivers
* will make derived classes.
*/
struct gl_framebuffer
{
_glthread_Mutex Mutex; /**< for thread safety */
/**
* If zero, this is a window system framebuffer. If non-zero, this
* is a FBO framebuffer; note that for some devices (i.e. those with
* a natural pixel coordinate system for FBOs that differs from the
* OpenGL/Mesa coordinate system), this means that the viewport,
* polygon face orientation, and polygon stipple will have to be inverted.
*/
GLuint Name;
GLint RefCount;
GLboolean DeletePending;
/**
* The framebuffer's visual. Immutable if this is a window system buffer.
* Computed from attachments if user-made FBO.
*/
struct gl_config Visual;
GLboolean Initialized;
GLuint Width, Height; /**< size of frame buffer in pixels */
/** \name Drawing bounds (Intersection of buffer size and scissor box) */
/*@{*/
GLint _Xmin, _Xmax; /**< inclusive */
GLint _Ymin, _Ymax; /**< exclusive */
/*@}*/
/** \name Derived Z buffer stuff */
/*@{*/
GLuint _DepthMax; /**< Max depth buffer value */
GLfloat _DepthMaxF; /**< Float max depth buffer value */
GLfloat _MRD; /**< minimum resolvable difference in Z values */
/*@}*/
/** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
GLenum _Status;
/** Integer color values */
GLboolean _IntegerColor;
/** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT];
/* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
* attribute group and GL_PIXEL attribute group, respectively.
*/
GLenum ColorDrawBuffer[MAX_DRAW_BUFFERS];
GLenum ColorReadBuffer;
/** Computed from ColorDraw/ReadBuffer above */
GLuint _NumColorDrawBuffers;
GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */
GLint _ColorReadBufferIndex; /* -1 = None */
struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS];
struct gl_renderbuffer *_ColorReadBuffer;
/** The Actual depth/stencil buffers to use. May be wrappers around the
* depth/stencil buffers attached above. */
struct gl_renderbuffer *_DepthBuffer;
struct gl_renderbuffer *_StencilBuffer;
/** Delete this framebuffer */
void (*Delete)(struct gl_framebuffer *fb);
};
/**
* Precision info for shader datatypes. See glGetShaderPrecisionFormat().
*/
struct gl_precision
{
GLushort RangeMin; /**< min value exponent */
GLushort RangeMax; /**< max value exponent */
GLushort Precision; /**< number of mantissa bits */
};
/**
* Limits for vertex and fragment programs/shaders.
*/
struct gl_program_constants
{
/* logical limits */
GLuint MaxInstructions;
GLuint MaxAluInstructions;
GLuint MaxTexInstructions;
GLuint MaxTexIndirections;
GLuint MaxAttribs;
GLuint MaxTemps;
GLuint MaxAddressRegs;
GLuint MaxParameters;
GLuint MaxLocalParams;
GLuint MaxEnvParams;
/* native/hardware limits */
GLuint MaxNativeInstructions;
GLuint MaxNativeAluInstructions;
GLuint MaxNativeTexInstructions;
GLuint MaxNativeTexIndirections;
GLuint MaxNativeAttribs;
GLuint MaxNativeTemps;
GLuint MaxNativeAddressRegs;
GLuint MaxNativeParameters;
/* For shaders */
GLuint MaxUniformComponents;
/* GL_ARB_geometry_shader4 */
GLuint MaxGeometryTextureImageUnits;
GLuint MaxGeometryVaryingComponents;
GLuint MaxVertexVaryingComponents;
GLuint MaxGeometryUniformComponents;
GLuint MaxGeometryOutputVertices;
GLuint MaxGeometryTotalOutputComponents;
/* ES 2.0 and GL_ARB_ES2_compatibility */
struct gl_precision LowFloat, MediumFloat, HighFloat;
struct gl_precision LowInt, MediumInt, HighInt;
};
/**
* Constants which may be overridden by device driver during context creation
* but are never changed after that.
*/
struct gl_constants
{
GLint MaxTextureMbytes; /**< Max memory per image, in MB */
GLint MaxTextureLevels; /**< Max mipmap levels. */
GLint Max3DTextureLevels; /**< Max mipmap levels for 3D textures */
GLint MaxCubeTextureLevels; /**< Max mipmap levels for cube textures */
GLint MaxArrayTextureLayers; /**< Max layers in array textures */
GLint MaxTextureRectSize; /**< Max rectangle texture size, in pixes */
GLuint MaxTextureCoordUnits;
GLuint MaxTextureImageUnits;
GLuint MaxVertexTextureImageUnits;
GLuint MaxCombinedTextureImageUnits;
GLuint MaxTextureUnits; /**< = MIN(CoordUnits, ImageUnits) */
GLfloat MaxTextureMaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */
GLfloat MaxTextureLodBias; /**< GL_EXT_texture_lod_bias */
GLuint MaxArrayLockSize;
GLint SubPixelBits;
GLfloat MinPointSize, MaxPointSize; /**< aliased */
GLfloat MinPointSizeAA, MaxPointSizeAA; /**< antialiased */
GLfloat PointSizeGranularity;
GLfloat MinLineWidth, MaxLineWidth; /**< aliased */
GLfloat MinLineWidthAA, MaxLineWidthAA; /**< antialiased */
GLfloat LineWidthGranularity;
GLuint MaxColorTableSize;
GLuint MaxClipPlanes;
GLuint MaxLights;
GLfloat MaxShininess; /**< GL_NV_light_max_exponent */
GLfloat MaxSpotExponent; /**< GL_NV_light_max_exponent */
GLuint MaxViewportWidth, MaxViewportHeight;
struct gl_program_constants VertexProgram; /**< GL_ARB_vertex_program */
struct gl_program_constants FragmentProgram; /**< GL_ARB_fragment_program */
struct gl_program_constants GeometryProgram; /**< GL_ARB_geometry_shader4 */
GLuint MaxProgramMatrices;
GLuint MaxProgramMatrixStackDepth;
/** vertex array / buffer object bounds checking */
GLboolean CheckArrayBounds;
GLuint MaxDrawBuffers; /**< GL_ARB_draw_buffers */
GLuint MaxColorAttachments; /**< GL_EXT_framebuffer_object */
GLuint MaxRenderbufferSize; /**< GL_EXT_framebuffer_object */
GLuint MaxSamples; /**< GL_ARB_framebuffer_object */
GLuint MaxVarying; /**< Number of float[4] varying parameters */
GLuint GLSLVersion; /**< GLSL version supported (ex: 120 = 1.20) */
/** Which texture units support GL_ATI_envmap_bumpmap as targets */
GLbitfield SupportedBumpUnits;
/**
* Maximum amount of time, measured in nanseconds, that the server can wait.
*/
GLuint64 MaxServerWaitTimeout;
/** GL_EXT_provoking_vertex */
GLboolean QuadsFollowProvokingVertexConvention;
/** OpenGL version 3.0 */
GLbitfield ContextFlags; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
/** OpenGL version 3.2 */
GLbitfield ProfileMask; /**< Mask of CONTEXT_x_PROFILE_BIT */
/** GL_EXT_transform_feedback */
GLuint MaxTransformFeedbackSeparateAttribs;
GLuint MaxTransformFeedbackSeparateComponents;
GLuint MaxTransformFeedbackInterleavedComponents;
/** GL_EXT_gpu_shader4 */
GLint MinProgramTexelOffset, MaxProgramTexelOffset;
};
/**
* Enable flag for each OpenGL extension. Different device drivers will
* enable different extensions at runtime.
*/
struct gl_extensions
{
GLboolean dummy; /* don't remove this! */
GLboolean dummy_true; /* Set true by _mesa_init_extensions(). */
GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */
GLboolean ARB_ES2_compatibility;
GLboolean ARB_blend_func_extended;
GLboolean ARB_copy_buffer;
GLboolean ARB_depth_buffer_float;
GLboolean ARB_depth_clamp;
GLboolean ARB_depth_texture;
GLboolean ARB_draw_buffers;
GLboolean ARB_draw_elements_base_vertex;
GLboolean ARB_draw_instanced;
GLboolean ARB_fragment_coord_conventions;
GLboolean ARB_fragment_program;
GLboolean ARB_fragment_program_shadow;
GLboolean ARB_fragment_shader;
GLboolean ARB_framebuffer_object;
GLboolean ARB_explicit_attrib_location;
GLboolean ARB_geometry_shader4;
GLboolean ARB_half_float_pixel;
GLboolean ARB_half_float_vertex;
GLboolean ARB_instanced_arrays;
GLboolean ARB_map_buffer_range;
GLboolean ARB_multisample;
GLboolean ARB_multitexture;
GLboolean ARB_occlusion_query;
GLboolean ARB_occlusion_query2;
GLboolean ARB_point_sprite;
GLboolean ARB_sampler_objects;
GLboolean ARB_seamless_cube_map;
GLboolean ARB_shader_objects;
GLboolean ARB_shader_stencil_export;
GLboolean ARB_shading_language_100;
GLboolean ARB_shadow;
GLboolean ARB_shadow_ambient;
GLboolean ARB_sync;
GLboolean ARB_texture_border_clamp;
GLboolean ARB_texture_buffer_object;
GLboolean ARB_texture_compression;
GLboolean ARB_texture_compression_rgtc;
GLboolean ARB_texture_cube_map;
GLboolean ARB_texture_env_combine;
GLboolean ARB_texture_env_crossbar;
GLboolean ARB_texture_env_dot3;
GLboolean ARB_texture_float;
GLboolean ARB_texture_mirrored_repeat;
GLboolean ARB_texture_multisample;
GLboolean ARB_texture_non_power_of_two;
GLboolean ARB_texture_rg;
GLboolean ARB_texture_rgb10_a2ui;
GLboolean ARB_timer_query;
GLboolean ARB_transform_feedback2;
GLboolean ARB_transpose_matrix;
GLboolean ARB_uniform_buffer_object;
GLboolean ARB_vertex_array_object;
GLboolean ARB_vertex_buffer_object;
GLboolean ARB_vertex_program;
GLboolean ARB_vertex_shader;
GLboolean ARB_vertex_type_2_10_10_10_rev;
GLboolean ARB_window_pos;
GLboolean EXT_abgr;
GLboolean EXT_bgra;
GLboolean EXT_blend_color;
GLboolean EXT_blend_equation_separate;
GLboolean EXT_blend_func_separate;
GLboolean EXT_blend_logic_op;
GLboolean EXT_blend_minmax;
GLboolean EXT_blend_subtract;
GLboolean EXT_clip_volume_hint;
GLboolean EXT_compiled_vertex_array;
GLboolean EXT_copy_texture;
GLboolean EXT_depth_bounds_test;
GLboolean EXT_draw_buffers2;
GLboolean EXT_draw_range_elements;
GLboolean EXT_fog_coord;
GLboolean EXT_framebuffer_blit;
GLboolean EXT_framebuffer_multisample;
GLboolean EXT_framebuffer_object;
GLboolean EXT_framebuffer_sRGB;
GLboolean EXT_gpu_program_parameters;
GLboolean EXT_gpu_shader4;
GLboolean EXT_multi_draw_arrays;
GLboolean EXT_paletted_texture;
GLboolean EXT_packed_depth_stencil;
GLboolean EXT_packed_float;
GLboolean EXT_packed_pixels;
GLboolean EXT_pixel_buffer_object;
GLboolean EXT_point_parameters;
GLboolean EXT_polygon_offset;
GLboolean EXT_provoking_vertex;
GLboolean EXT_rescale_normal;
GLboolean EXT_shadow_funcs;
GLboolean EXT_secondary_color;
GLboolean EXT_separate_shader_objects;
GLboolean EXT_separate_specular_color;
GLboolean EXT_shared_texture_palette;
GLboolean EXT_stencil_wrap;
GLboolean EXT_stencil_two_side;
GLboolean EXT_subtexture;
GLboolean EXT_texture;
GLboolean EXT_texture_object;
GLboolean EXT_texture3D;
GLboolean EXT_texture_array;
GLboolean EXT_texture_compression_s3tc;
GLboolean EXT_texture_env_add;
GLboolean EXT_texture_env_combine;
GLboolean EXT_texture_env_dot3;
GLboolean EXT_texture_filter_anisotropic;
GLboolean EXT_texture_integer;
GLboolean EXT_texture_lod_bias;
GLboolean EXT_texture_mirror_clamp;
GLboolean EXT_texture_shared_exponent;
GLboolean EXT_texture_sRGB;
GLboolean EXT_texture_swizzle;
GLboolean EXT_transform_feedback;
GLboolean EXT_timer_query;
GLboolean EXT_vertex_array;
GLboolean EXT_vertex_array_bgra;
GLboolean EXT_vertex_array_set;
GLboolean OES_standard_derivatives;
/* vendor extensions */
GLboolean APPLE_client_storage;
GLboolean APPLE_packed_pixels;
GLboolean APPLE_vertex_array_object;
GLboolean APPLE_object_purgeable;
GLboolean ATI_envmap_bumpmap;
GLboolean ATI_texture_mirror_once;
GLboolean ATI_texture_env_combine3;
GLboolean ATI_fragment_shader;
GLboolean ATI_separate_stencil;
GLboolean IBM_rasterpos_clip;
GLboolean IBM_multimode_draw_arrays;
GLboolean MESA_pack_invert;
GLboolean MESA_resize_buffers;
GLboolean MESA_ycbcr_texture;
GLboolean MESA_texture_array;
GLboolean MESA_texture_signed_rgba;
GLboolean NV_blend_square;
GLboolean NV_conditional_render;
GLboolean NV_fragment_program;
GLboolean NV_fragment_program_option;
GLboolean NV_light_max_exponent;
GLboolean NV_point_sprite;
GLboolean NV_primitive_restart;
GLboolean NV_texgen_reflection;
GLboolean NV_texture_env_combine4;
GLboolean NV_texture_rectangle;
GLboolean NV_vertex_program;
GLboolean NV_vertex_program1_1;
GLboolean OES_read_format;
GLboolean SGI_texture_color_table;
GLboolean SGIS_generate_mipmap;
GLboolean SGIS_texture_edge_clamp;
GLboolean SGIS_texture_lod;
GLboolean TDFX_texture_compression_FXT1;
GLboolean S3_s3tc;
GLboolean OES_EGL_image;
GLboolean OES_draw_texture;
GLboolean EXT_texture_format_BGRA8888;
GLboolean extension_sentinel;
/** The extension string */
const GLubyte *String;
/** Number of supported extensions */
GLuint Count;
};
/**
* A stack of matrices (projection, modelview, color, texture, etc).
*/
struct gl_matrix_stack
{
GLmatrix *Top; /**< points into Stack */
GLmatrix *Stack; /**< array [MaxDepth] of GLmatrix */
GLuint Depth; /**< 0 <= Depth < MaxDepth */
GLuint MaxDepth; /**< size of Stack[] array */
GLuint DirtyFlag; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
};
/**
* \name Bits for image transfer operations
* \sa __struct gl_contextRec::ImageTransferState.
*/
/*@{*/
#define IMAGE_SCALE_BIAS_BIT 0x1
#define IMAGE_SHIFT_OFFSET_BIT 0x2
#define IMAGE_MAP_COLOR_BIT 0x4
#define IMAGE_CLAMP_BIT 0x800
/** Pixel Transfer ops */
#define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
IMAGE_SHIFT_OFFSET_BIT | \
IMAGE_MAP_COLOR_BIT)
/**
* \name Bits to indicate what state has changed.
*
* 4 unused flags.
*/
/*@{*/
#define _NEW_MODELVIEW 0x1 /**< __struct gl_contextRec::ModelView */
#define _NEW_PROJECTION 0x2 /**< __struct gl_contextRec::Projection */
#define _NEW_TEXTURE_MATRIX 0x4 /**< __struct gl_contextRec::TextureMatrix */
#define _NEW_ACCUM 0x10 /**< __struct gl_contextRec::Accum */
#define _NEW_COLOR 0x20 /**< __struct gl_contextRec::Color */
#define _NEW_DEPTH 0x40 /**< __struct gl_contextRec::Depth */
#define _NEW_EVAL 0x80 /**< __struct gl_contextRec::Eval, __struct gl_contextRec::EvalMap */
#define _NEW_FOG 0x100 /**< __struct gl_contextRec::Fog */
#define _NEW_HINT 0x200 /**< __struct gl_contextRec::Hint */
#define _NEW_LIGHT 0x400 /**< __struct gl_contextRec::Light */
#define _NEW_LINE 0x800 /**< __struct gl_contextRec::Line */
#define _NEW_PIXEL 0x1000 /**< __struct gl_contextRec::Pixel */
#define _NEW_POINT 0x2000 /**< __struct gl_contextRec::Point */
#define _NEW_POLYGON 0x4000 /**< __struct gl_contextRec::Polygon */
#define _NEW_POLYGONSTIPPLE 0x8000 /**< __struct gl_contextRec::PolygonStipple */
#define _NEW_SCISSOR 0x10000 /**< __struct gl_contextRec::Scissor */
#define _NEW_STENCIL 0x20000 /**< __struct gl_contextRec::Stencil */
#define _NEW_TEXTURE 0x40000 /**< __struct gl_contextRec::Texture */
#define _NEW_TRANSFORM 0x80000 /**< __struct gl_contextRec::Transform */
#define _NEW_VIEWPORT 0x100000 /**< __struct gl_contextRec::Viewport */
#define _NEW_PACKUNPACK 0x200000 /**< __struct gl_contextRec::Pack, __struct gl_contextRec::Unpack */
#define _NEW_ARRAY 0x400000 /**< __struct gl_contextRec::Array */
#define _NEW_RENDERMODE 0x800000 /**< __struct gl_contextRec::RenderMode, __struct gl_contextRec::Feedback, __struct gl_contextRec::Select */
#define _NEW_BUFFERS 0x1000000 /**< __struct gl_contextRec::Visual, __struct gl_contextRec::DrawBuffer, */
#define _NEW_MULTISAMPLE 0x2000000 /**< __struct gl_contextRec::Multisample */
#define _NEW_TRACK_MATRIX 0x4000000 /**< __struct gl_contextRec::VertexProgram */
#define _NEW_PROGRAM 0x8000000 /**< __struct gl_contextRec::VertexProgram */
#define _NEW_CURRENT_ATTRIB 0x10000000 /**< __struct gl_contextRec::Current */
#define _NEW_PROGRAM_CONSTANTS 0x20000000
#define _NEW_BUFFER_OBJECT 0x40000000
#define _NEW_ALL ~0
/*@}*/
/**
* \name Bits to track array state changes
*
* Also used to summarize array enabled.
*/
/*@{*/
#define _NEW_ARRAY_VERTEX VERT_BIT_POS
#define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT
#define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL
#define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0
#define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1
#define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG
#define _NEW_ARRAY_INDEX VERT_BIT_COLOR_INDEX
#define _NEW_ARRAY_EDGEFLAG VERT_BIT_EDGEFLAG
#define _NEW_ARRAY_POINT_SIZE VERT_BIT_COLOR_INDEX /* aliased */
#define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0
#define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1
#define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2
#define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3
#define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4
#define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5
#define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6
#define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7
#define _NEW_ARRAY_ATTRIB_0 VERT_BIT_GENERIC0 /* start at bit 16 */
#define _NEW_ARRAY_ALL 0xffffffff
#define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i))
#define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i))
/*@}*/
/**
* \name A bunch of flags that we think might be useful to drivers.
*
* Set in the __struct gl_contextRec::_TriangleCaps bitfield.
*/
/*@{*/
#define DD_FLATSHADE 0x1
#define DD_SEPARATE_SPECULAR 0x2
#define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */
#define DD_TRI_LIGHT_TWOSIDE 0x8
#define DD_TRI_UNFILLED 0x10
#define DD_TRI_SMOOTH 0x20
#define DD_TRI_STIPPLE 0x40
#define DD_TRI_OFFSET 0x80
#define DD_LINE_SMOOTH 0x100
#define DD_LINE_STIPPLE 0x200
#define DD_POINT_SMOOTH 0x400
#define DD_POINT_ATTEN 0x800
#define DD_TRI_TWOSTENCIL 0x1000
/*@}*/
/**
* \name Define the state changes under which each of these bits might change
*/
/*@{*/
#define _DD_NEW_FLATSHADE _NEW_LIGHT
#define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM)
#define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON
#define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT
#define _DD_NEW_TRI_UNFILLED _NEW_POLYGON
#define _DD_NEW_TRI_SMOOTH _NEW_POLYGON
#define _DD_NEW_TRI_STIPPLE _NEW_POLYGON
#define _DD_NEW_TRI_OFFSET _NEW_POLYGON
#define _DD_NEW_LINE_SMOOTH _NEW_LINE
#define _DD_NEW_LINE_STIPPLE _NEW_LINE
#define _DD_NEW_LINE_WIDTH _NEW_LINE
#define _DD_NEW_POINT_SMOOTH _NEW_POINT
#define _DD_NEW_POINT_SIZE _NEW_POINT
#define _DD_NEW_POINT_ATTEN _NEW_POINT
/*@}*/
/**
* Composite state flags
*/
/*@{*/
#define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
_NEW_TEXTURE | \
_NEW_POINT | \
_NEW_PROGRAM | \
_NEW_MODELVIEW)
#define _MESA_NEW_NEED_NORMALS (_NEW_LIGHT | \
_NEW_TEXTURE)
#define _MESA_NEW_TRANSFER_STATE (_NEW_PIXEL)
/*@}*/
/* This has to be included here. */
#include "dd.h"
/**
* Display list flags.
* Strictly this is a tnl-private concept, but it doesn't seem
* worthwhile adding a tnl private structure just to hold this one bit
* of information:
*/
#define DLIST_DANGLING_REFS 0x1
/** Opaque declaration of display list payload data type */
union gl_dlist_node;
/**
* Provide a location where information about a display list can be
* collected. Could be extended with driverPrivate structures,
* etc. in the future.
*/
struct gl_display_list
{
GLuint Name;
GLbitfield Flags; /**< DLIST_x flags */
/** The dlist commands are in a linked list of nodes */
union gl_dlist_node *Head;
};
/**
* State used during display list compilation and execution.
*/
struct gl_dlist_state
{
GLuint CallDepth; /**< Current recursion calling depth */
struct gl_display_list *CurrentList; /**< List currently being compiled */
union gl_dlist_node *CurrentBlock; /**< Pointer to current block of nodes */
GLuint CurrentPos; /**< Index into current block of nodes */
GLvertexformat ListVtxfmt;
GLubyte ActiveAttribSize[VERT_ATTRIB_MAX];
GLfloat CurrentAttrib[VERT_ATTRIB_MAX][4];
GLubyte ActiveMaterialSize[MAT_ATTRIB_MAX];
GLfloat CurrentMaterial[MAT_ATTRIB_MAX][4];
GLubyte ActiveIndex;
GLfloat CurrentIndex;
GLubyte ActiveEdgeFlag;
GLboolean CurrentEdgeFlag;
struct {
/* State known to have been set by the currently-compiling display
* list. Used to eliminate some redundant state changes.
*/
GLenum ShadeModel;
} Current;
};
/**
* Enum for the OpenGL APIs we know about and may support.
*/
typedef enum {
API_OPENGL,
API_OPENGLES,
API_OPENGLES2
} gl_api;
/**
* Mesa rendering context.
*
* This is the central context data structure for Mesa. Almost all
* OpenGL state is contained in this structure.
* Think of this as a base class from which device drivers will derive
* sub classes.
*
* The struct gl_context typedef names this structure.
*/
struct gl_context
{
/** State possibly shared with other contexts in the address space */
struct gl_shared_state *Shared;
/** \name API function pointer tables */
/*@{*/
gl_api API;
struct _glapi_table *Save; /**< Display list save functions */
struct _glapi_table *Exec; /**< Execute functions */
struct _glapi_table *CurrentDispatch; /**< == Save or Exec !! */
/*@}*/
struct gl_config Visual;
struct gl_framebuffer *DrawBuffer; /**< buffer for writing */
struct gl_framebuffer *ReadBuffer; /**< buffer for reading */
struct gl_framebuffer *WinSysDrawBuffer; /**< set with MakeCurrent */
struct gl_framebuffer *WinSysReadBuffer; /**< set with MakeCurrent */
/**
* Device driver function pointer table
*/
struct dd_function_table Driver;
void *DriverCtx; /**< Points to device driver context/state */
/** Core/Driver constants */
struct gl_constants Const;
/** \name The various 4x4 matrix stacks */
/*@{*/
struct gl_matrix_stack ModelviewMatrixStack;
struct gl_matrix_stack ProjectionMatrixStack;
struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS];
struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES];
struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */
/*@}*/
/** Combined modelview and projection matrix */
GLmatrix _ModelProjectMatrix;
/** \name Display lists */
struct gl_dlist_state ListState;
GLboolean ExecuteFlag; /**< Execute GL commands? */
GLboolean CompileFlag; /**< Compile GL commands into display list? */
/** Extension information */
struct gl_extensions Extensions;
/** Version info */
GLuint VersionMajor, VersionMinor;
char *VersionString;
/** \name State attribute stack (for glPush/PopAttrib) */
/*@{*/
GLuint AttribStackDepth;
struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH];
/*@}*/
/** \name Renderer attribute groups
*
* We define a struct for each attribute group to make pushing and popping
* attributes easy. Also it's a good organization.
*/
/*@{*/
struct gl_accum_attrib Accum; /**< Accum buffer attributes */
struct gl_colorbuffer_attrib Color; /**< Color buffer attributes */
struct gl_current_attrib Current; /**< Current attributes */
struct gl_depthbuffer_attrib Depth; /**< Depth buffer attributes */
struct gl_eval_attrib Eval; /**< Eval attributes */
struct gl_fog_attrib Fog; /**< Fog attributes */
struct gl_hint_attrib Hint; /**< Hint attributes */
struct gl_light_attrib Light; /**< Light attributes */
struct gl_line_attrib Line; /**< Line attributes */
struct gl_list_attrib List; /**< List attributes */
struct gl_multisample_attrib Multisample;
struct gl_pixel_attrib Pixel; /**< Pixel attributes */
struct gl_point_attrib Point; /**< Point attributes */
struct gl_polygon_attrib Polygon; /**< Polygon attributes */
GLuint PolygonStipple[32]; /**< Polygon stipple */
struct gl_scissor_attrib Scissor; /**< Scissor attributes */
struct gl_stencil_attrib Stencil; /**< Stencil buffer attributes */
struct gl_texture_attrib Texture; /**< Texture attributes */
struct gl_transform_attrib Transform; /**< Transformation attributes */
struct gl_viewport_attrib Viewport; /**< Viewport attributes */
/*@}*/
/** \name Client attribute stack */
/*@{*/
GLuint ClientAttribStackDepth;
struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH];
/*@}*/
/** \name Client attribute groups */
/*@{*/
struct gl_array_attrib Array; /**< Vertex arrays */
struct gl_pixelstore_attrib Pack; /**< Pixel packing */
struct gl_pixelstore_attrib Unpack; /**< Pixel unpacking */
struct gl_pixelstore_attrib DefaultPacking; /**< Default params */
/*@}*/
/** \name Other assorted state (not pushed/popped on attribute stack) */
/*@{*/
struct gl_pixelmaps PixelMaps;
struct gl_evaluators EvalMap; /**< All evaluators */
struct gl_feedback Feedback; /**< Feedback */
struct gl_selection Select; /**< Selection */
struct gl_program_state Program; /**< general program state */
struct gl_vertex_program_state VertexProgram;
struct gl_fragment_program_state FragmentProgram;
struct gl_geometry_program_state GeometryProgram;
struct gl_ati_fragment_shader_state ATIFragmentShader;
struct gl_shader_state Shader; /**< GLSL shader object state */
struct gl_shader_compiler_options ShaderCompilerOptions[MESA_SHADER_TYPES];
struct gl_query_state Query; /**< occlusion, timer queries */
struct gl_transform_feedback TransformFeedback;
struct gl_buffer_object *CopyReadBuffer; /**< GL_ARB_copy_buffer */
struct gl_buffer_object *CopyWriteBuffer; /**< GL_ARB_copy_buffer */
/*@}*/
struct gl_meta_state *Meta; /**< for "meta" operations */
/* GL_EXT_framebuffer_object */
struct gl_renderbuffer *CurrentRenderbuffer;
GLenum ErrorValue; /**< Last error code */
/**
* Recognize and silence repeated error debug messages in buggy apps.
*/
const char *ErrorDebugFmtString;
GLuint ErrorDebugCount;
GLenum RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
GLbitfield NewState; /**< bitwise-or of _NEW_* flags */
GLboolean ViewportInitialized; /**< has viewport size been initialized? */
GLbitfield varying_vp_inputs; /**< mask of VERT_BIT_* flags */
/** \name Derived state */
/*@{*/
/** Bitwise-or of DD_* flags. Note that this bitfield may be used before
* state validation so they need to always be current.
*/
GLbitfield _TriangleCaps;
GLbitfield _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */
GLfloat _EyeZDir[3];
GLfloat _ModelViewInvScale;
GLboolean _NeedEyeCoords;
GLboolean _ForceEyeCoords;
GLuint TextureStateTimestamp; /**< detect changes to shared state */
struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */
struct gl_shine_tab *_ShineTabList; /**< MRU list of inactive shine tables */
/**@}*/
struct gl_list_extensions *ListExt; /**< driver dlist extensions */
/** \name For debugging/development only */
/*@{*/
GLboolean FirstTimeCurrent;
/*@}*/
/** Dither disable via MESA_NO_DITHER env var */
GLboolean NoDither;
/** software compression/decompression supported or not */
GLboolean Mesa_DXTn;
/**
* Use dp4 (rather than mul/mad) instructions for position
* transformation?
*/
GLboolean mvp_with_dp4;
/**
* \name Hooks for module contexts.
*
* These will eventually live in the driver or elsewhere.
*/
/*@{*/
void *swrast_context;
void *swsetup_context;
void *swtnl_context;
void *swtnl_im;
struct st_context *st;
void *aelt_context;
/*@}*/
};
/** The string names for GL_POINT, GL_LINE_LOOP, etc */
extern const char *_mesa_prim_name[GL_POLYGON+4];
#ifdef DEBUG
extern int MESA_VERBOSE;
extern int MESA_DEBUG_FLAGS;
# define MESA_FUNCTION __FUNCTION__
#else
# define MESA_VERBOSE 0
# define MESA_DEBUG_FLAGS 0
# define MESA_FUNCTION "a function"
# ifndef NDEBUG
# define NDEBUG
# endif
#endif
/** The MESA_VERBOSE var is a bitmask of these flags */
enum _verbose
{
VERBOSE_VARRAY = 0x0001,
VERBOSE_TEXTURE = 0x0002,
VERBOSE_MATERIAL = 0x0004,
VERBOSE_PIPELINE = 0x0008,
VERBOSE_DRIVER = 0x0010,
VERBOSE_STATE = 0x0020,
VERBOSE_API = 0x0040,
VERBOSE_DISPLAY_LIST = 0x0100,
VERBOSE_LIGHTING = 0x0200,
VERBOSE_PRIMS = 0x0400,
VERBOSE_VERTS = 0x0800,
VERBOSE_DISASSEM = 0x1000,
VERBOSE_DRAW = 0x2000,
VERBOSE_SWAPBUFFERS = 0x4000
};
/** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
enum _debug
{
DEBUG_ALWAYS_FLUSH = 0x1
};
#endif /* MTYPES_H */