| /* |
| * 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/compiler.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 st_context; |
| typedef struct __GLcontextRec GLcontext; |
| typedef struct __GLcontextModesRec GLvisual; |
| typedef struct gl_framebuffer GLframebuffer; |
| /*@}*/ |
| |
| |
| |
| /** |
| * 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 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_COLOR = 1, |
| FRAG_RESULT_DATA0 = 2, |
| 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) |
| |
| |
| /** The pixel transfer path has three color tables: */ |
| typedef enum |
| { |
| COLORTABLE_PRECONVOLUTION, |
| COLORTABLE_POSTCONVOLUTION, |
| COLORTABLE_POSTCOLORMATRIX, |
| COLORTABLE_MAX |
| } gl_colortable_index; |
| |
| |
| /** |
| * 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 RasterIndex; |
| GLfloat RasterTexCoords[MAX_TEXTURE_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 */ |
| }; |
| |
| |
| /** |
| * Histogram attributes. |
| */ |
| struct gl_histogram_attrib |
| { |
| GLuint Width; /**< number of table entries */ |
| GLint Format; /**< GL_ALPHA, GL_RGB, etc */ |
| GLuint Count[HISTOGRAM_TABLE_SIZE][4]; /**< the histogram */ |
| GLboolean Sink; /**< terminate image transfer? */ |
| GLubyte RedSize; /**< Bits per counter */ |
| GLubyte GreenSize; |
| GLubyte BlueSize; |
| GLubyte AlphaSize; |
| GLubyte LuminanceSize; |
| }; |
| |
| |
| /** |
| * Color Min/max state. |
| */ |
| struct gl_minmax_attrib |
| { |
| GLenum Format; |
| GLboolean Sink; |
| GLfloat Min[4], Max[4]; /**< RGBA */ |
| }; |
| |
| |
| /** |
| * Image convolution state. |
| */ |
| struct gl_convolution_attrib |
| { |
| GLenum Format; |
| GLenum InternalFormat; |
| GLuint Width; |
| GLuint Height; |
| GLfloat Filter[MAX_CONVOLUTION_WIDTH * MAX_CONVOLUTION_HEIGHT * 4]; |
| }; |
| |
| |
| /** |
| * 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; |
| |
| /* There are multiple color table stages: */ |
| GLboolean ColorTableEnabled[COLORTABLE_MAX]; |
| GLfloat ColorTableScale[COLORTABLE_MAX][4]; /**< RGBA */ |
| GLfloat ColorTableBias[COLORTABLE_MAX][4]; /**< RGBA */ |
| |
| /* Convolution (GL_EXT_convolution) */ |
| GLboolean Convolution1DEnabled; |
| GLboolean Convolution2DEnabled; |
| GLboolean Separable2DEnabled; |
| GLfloat ConvolutionBorderColor[3][4]; /**< RGBA */ |
| GLenum ConvolutionBorderMode[3]; |
| GLfloat ConvolutionFilterScale[3][4]; /**< RGBA */ |
| GLfloat ConvolutionFilterBias[3][4]; /**< RGBA */ |
| GLfloat PostConvolutionScale[4]; /**< RGBA */ |
| GLfloat PostConvolutionBias[4]; /**< RGBA */ |
| |
| /* Color matrix (GL_SGI_color_matrix) */ |
| /* Note: the color matrix is not part of this attrib group */ |
| GLfloat PostColorMatrixScale[4]; /**< RGBA */ |
| GLfloat PostColorMatrixBias[4]; /**< RGBA */ |
| |
| /* Histogram & minmax (GL_EXT_histogram) */ |
| /* Note: histogram and minmax data are not part of this attrib group */ |
| GLboolean HistogramEnabled; |
| GLboolean MinMaxEnabled; |
| |
| /*--- 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_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 |
| /*@}*/ |
| |
| |
| /** |
| * 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] */ |
| GLfloat BorderColor[4]; /**< unclamped */ |
| 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? */ |
| |
| /** 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_TEXTURE_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 */ |
| |
| GLboolean CullVertexFlag; /**< True if GL_CULL_VERTEX_EXT is enabled */ |
| 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 |
| { |
| 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) */ |
| }; |
| |
| |
| /** |
| * 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 */ |
| 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 */ |
| |
| GLbitfield NewState; /**< mask of _NEW_ARRAY_* values */ |
| |
| #if FEATURE_ARB_vertex_buffer_object |
| struct gl_buffer_object *ArrayBufferObj; |
| struct gl_buffer_object *ElementArrayBufferObj; |
| #endif |
| }; |
| |
| |
| /** |
| * 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]; |
| |
| /** 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; |
| }; |
| |
| |
| /** Fragment program object */ |
| struct gl_fragment_program |
| { |
| struct gl_program Base; /**< base class */ |
| GLenum FogOption; |
| GLboolean UsesKill; /**< shader uses KIL instruction */ |
| }; |
| |
| |
| /** |
| * 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 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; |
| 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 (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; |
| }; |
| |
| |
| /** |
| * 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; |
| |
| /* post-link info: */ |
| struct gl_vertex_program *VertexProgram; /**< Linked vertex program */ |
| struct gl_fragment_program *FragmentProgram; /**< Linked fragment 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; |
| }; |
| |
| |
| #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 |
| { |
| struct gl_shader_program *CurrentProgram; /**< The user-bound program */ |
| /** Driver-selectable options: */ |
| GLboolean EmitHighLevelInstructions; /**< IF/ELSE/ENDIF vs. BRA, etc. */ |
| GLboolean EmitContReturn; /**< Emit CONT/RET opcodes? */ |
| GLboolean EmitCondCodes; /**< Use condition codes? */ |
| GLboolean EmitComments; /**< Annotated instructions */ |
| GLboolean EmitNVTempInitialization; /**< 0-fill NV temp registers */ |
| void *MemPool; |
| GLbitfield Flags; /**< Mask of GLSL_x flags */ |
| struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */ |
| }; |
| |
| |
| /** |
| * 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/fragment programs |
| */ |
| /*@{*/ |
| struct _mesa_HashTable *Programs; /**< All vertex/fragment programs */ |
| #if FEATURE_ARB_vertex_program |
| struct gl_vertex_program *DefaultVertexProgram; |
| #endif |
| #if FEATURE_ARB_fragment_program |
| struct gl_fragment_program *DefaultFragmentProgram; |
| #endif |
| /*@}*/ |
| |
| #if FEATURE_ATI_fragment_shader |
| struct _mesa_HashTable *ATIShaders; |
| struct ati_fragment_shader *DefaultFragmentShader; |
| #endif |
| |
| #if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object |
| struct _mesa_HashTable *BufferObjects; |
| #endif |
| |
| #if FEATURE_ARB_shader_objects |
| /** Table of both gl_shader and gl_shader_program objects */ |
| struct _mesa_HashTable *ShaderObjects; |
| #endif |
| |
| #if FEATURE_EXT_framebuffer_object |
| struct _mesa_HashTable *RenderBuffers; |
| struct _mesa_HashTable *FrameBuffers; |
| #endif |
| |
| #if FEATURE_ARB_sync |
| struct simple_node SyncObjects; |
| #endif |
| |
| 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; |
| |
| 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)(GLcontext *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)(GLcontext *ctx, struct gl_renderbuffer *rb); |
| void (*Unlock)(GLcontext *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)(GLcontext *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)(GLcontext *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)(GLcontext *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)(GLcontext *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)(GLcontext *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)(GLcontext *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)(GLcontext *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)(GLcontext *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. |
| */ |
| GLvisual 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; |
| |
| /** 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); |
| }; |
| |
| |
| /** |
| * Limits for vertex and fragment programs. |
| */ |
| struct gl_program_constants |
| { |
| /* logical limits */ |
| GLuint MaxInstructions; |
| GLuint MaxAluInstructions; /* fragment programs only, for now */ |
| GLuint MaxTexInstructions; /* fragment programs only, for now */ |
| GLuint MaxTexIndirections; /* fragment programs only, for now */ |
| GLuint MaxAttribs; |
| GLuint MaxTemps; |
| GLuint MaxAddressRegs; /* vertex program only, for now */ |
| GLuint MaxParameters; |
| GLuint MaxLocalParams; |
| GLuint MaxEnvParams; |
| /* native/hardware limits */ |
| GLuint MaxNativeInstructions; |
| GLuint MaxNativeAluInstructions; /* fragment programs only, for now */ |
| GLuint MaxNativeTexInstructions; /* fragment programs only, for now */ |
| GLuint MaxNativeTexIndirections; /* fragment programs only, for now */ |
| GLuint MaxNativeAttribs; |
| GLuint MaxNativeTemps; |
| GLuint MaxNativeAddressRegs; /* vertex program only, for now */ |
| GLuint MaxNativeParameters; |
| /* For shaders */ |
| GLuint MaxUniformComponents; |
| }; |
| |
| |
| /** |
| * Constants which may be overridden by device driver during context creation |
| * but are never changed after that. |
| */ |
| struct gl_constants |
| { |
| 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 MaxConvolutionWidth; |
| GLuint MaxConvolutionHeight; |
| |
| 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 */ |
| 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 */ |
| |
| GLbitfield SupportedBumpUnits; /**> units supporting GL_ATI_envmap_bumpmap as targets */ |
| |
| /** |
| * Maximum amount of time, measured in nanseconds, that the server can wait. |
| */ |
| GLuint64 MaxServerWaitTimeout; |
| |
| |
| /**< GL_EXT_provoking_vertex */ |
| GLboolean QuadsFollowProvokingVertexConvention; |
| }; |
| |
| |
| /** |
| * 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 ARB_copy_buffer; |
| GLboolean ARB_depth_texture; |
| GLboolean ARB_depth_clamp; |
| GLboolean ARB_draw_buffers; |
| GLboolean ARB_draw_elements_base_vertex; |
| GLboolean ARB_fragment_program; |
| GLboolean ARB_fragment_program_shadow; |
| GLboolean ARB_fragment_shader; |
| GLboolean ARB_framebuffer_object; |
| GLboolean ARB_half_float_pixel; |
| GLboolean ARB_imaging; |
| GLboolean ARB_map_buffer_range; |
| GLboolean ARB_multisample; |
| GLboolean ARB_multitexture; |
| GLboolean ARB_occlusion_query; |
| GLboolean ARB_point_sprite; |
| GLboolean ARB_seamless_cube_map; |
| GLboolean ARB_shader_objects; |
| GLboolean ARB_shading_language_100; |
| GLboolean ARB_shading_language_120; |
| GLboolean ARB_shadow; |
| GLboolean ARB_shadow_ambient; /* or GL_ARB_shadow_ambient */ |
| GLboolean ARB_sync; |
| GLboolean ARB_texture_border_clamp; |
| GLboolean ARB_texture_compression; |
| 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_non_power_of_two; |
| GLboolean ARB_transpose_matrix; |
| GLboolean ARB_vertex_array_object; |
| GLboolean ARB_vertex_buffer_object; |
| GLboolean ARB_vertex_program; |
| GLboolean ARB_vertex_shader; |
| 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_cull_vertex; |
| GLboolean EXT_convolution; |
| 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_gpu_program_parameters; |
| GLboolean EXT_histogram; |
| GLboolean EXT_multi_draw_arrays; |
| GLboolean EXT_paletted_texture; |
| GLboolean EXT_packed_depth_stencil; |
| 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_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_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_lod_bias; |
| GLboolean EXT_texture_mirror_clamp; |
| GLboolean EXT_texture_sRGB; |
| GLboolean EXT_texture_swizzle; |
| GLboolean EXT_timer_query; |
| GLboolean EXT_vertex_array; |
| GLboolean EXT_vertex_array_bgra; |
| GLboolean EXT_vertex_array_set; |
| /* vendor extensions */ |
| GLboolean APPLE_client_storage; |
| GLboolean APPLE_packed_pixels; |
| GLboolean APPLE_vertex_array_object; |
| 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_packed_depth_stencil; |
| GLboolean MESA_resize_buffers; |
| GLboolean MESA_ycbcr_texture; |
| GLboolean MESA_texture_array; |
| GLboolean MESA_texture_signed_rgba; |
| GLboolean NV_blend_square; |
| GLboolean NV_fragment_program; |
| GLboolean NV_fragment_program_option; |
| GLboolean NV_light_max_exponent; |
| GLboolean NV_point_sprite; |
| 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_color_matrix; |
| GLboolean SGI_color_table; |
| 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; |
| /** 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 __GLcontextRec::ImageTransferState. |
| */ |
| /*@{*/ |
| #define IMAGE_SCALE_BIAS_BIT 0x1 |
| #define IMAGE_SHIFT_OFFSET_BIT 0x2 |
| #define IMAGE_MAP_COLOR_BIT 0x4 |
| #define IMAGE_COLOR_TABLE_BIT 0x8 |
| #define IMAGE_CONVOLUTION_BIT 0x10 |
| #define IMAGE_POST_CONVOLUTION_SCALE_BIAS 0x20 |
| #define IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT 0x40 |
| #define IMAGE_COLOR_MATRIX_BIT 0x80 |
| #define IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT 0x100 |
| #define IMAGE_HISTOGRAM_BIT 0x200 |
| #define IMAGE_MIN_MAX_BIT 0x400 |
| #define IMAGE_CLAMP_BIT 0x800 |
| |
| |
| /** Pixel Transfer ops up to convolution */ |
| #define IMAGE_PRE_CONVOLUTION_BITS (IMAGE_SCALE_BIAS_BIT | \ |
| IMAGE_SHIFT_OFFSET_BIT | \ |
| IMAGE_MAP_COLOR_BIT | \ |
| IMAGE_COLOR_TABLE_BIT) |
| |
| /** Pixel transfer ops after convolution */ |
| #define IMAGE_POST_CONVOLUTION_BITS (IMAGE_POST_CONVOLUTION_SCALE_BIAS | \ |
| IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT | \ |
| IMAGE_COLOR_MATRIX_BIT | \ |
| IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT |\ |
| IMAGE_HISTOGRAM_BIT | \ |
| IMAGE_MIN_MAX_BIT) |
| /*@}*/ |
| |
| |
| /** |
| * \name Bits to indicate what state has changed. |
| * |
| * 4 unused flags. |
| */ |
| /*@{*/ |
| #define _NEW_MODELVIEW 0x1 /**< __GLcontextRec::ModelView */ |
| #define _NEW_PROJECTION 0x2 /**< __GLcontextRec::Projection */ |
| #define _NEW_TEXTURE_MATRIX 0x4 /**< __GLcontextRec::TextureMatrix */ |
| #define _NEW_COLOR_MATRIX 0x8 /**< __GLcontextRec::ColorMatrix */ |
| #define _NEW_ACCUM 0x10 /**< __GLcontextRec::Accum */ |
| #define _NEW_COLOR 0x20 /**< __GLcontextRec::Color */ |
| #define _NEW_DEPTH 0x40 /**< __GLcontextRec::Depth */ |
| #define _NEW_EVAL 0x80 /**< __GLcontextRec::Eval, __GLcontextRec::EvalMap */ |
| #define _NEW_FOG 0x100 /**< __GLcontextRec::Fog */ |
| #define _NEW_HINT 0x200 /**< __GLcontextRec::Hint */ |
| #define _NEW_LIGHT 0x400 /**< __GLcontextRec::Light */ |
| #define _NEW_LINE 0x800 /**< __GLcontextRec::Line */ |
| #define _NEW_PIXEL 0x1000 /**< __GLcontextRec::Pixel */ |
| #define _NEW_POINT 0x2000 /**< __GLcontextRec::Point */ |
| #define _NEW_POLYGON 0x4000 /**< __GLcontextRec::Polygon */ |
| #define _NEW_POLYGONSTIPPLE 0x8000 /**< __GLcontextRec::PolygonStipple */ |
| #define _NEW_SCISSOR 0x10000 /**< __GLcontextRec::Scissor */ |
| #define _NEW_STENCIL 0x20000 /**< __GLcontextRec::Stencil */ |
| #define _NEW_TEXTURE 0x40000 /**< __GLcontextRec::Texture */ |
| #define _NEW_TRANSFORM 0x80000 /**< __GLcontextRec::Transform */ |
| #define _NEW_VIEWPORT 0x100000 /**< __GLcontextRec::Viewport */ |
| #define _NEW_PACKUNPACK 0x200000 /**< __GLcontextRec::Pack, __GLcontextRec::Unpack */ |
| #define _NEW_ARRAY 0x400000 /**< __GLcontextRec::Array */ |
| #define _NEW_RENDERMODE 0x800000 /**< __GLcontextRec::RenderMode, __GLcontextRec::Feedback, __GLcontextRec::Select */ |
| #define _NEW_BUFFERS 0x1000000 /**< __GLcontextRec::Visual, __GLcontextRec::DrawBuffer, */ |
| #define _NEW_MULTISAMPLE 0x2000000 /**< __GLcontextRec::Multisample */ |
| #define _NEW_TRACK_MATRIX 0x4000000 /**< __GLcontextRec::VertexProgram */ |
| #define _NEW_PROGRAM 0x8000000 /**< __GLcontextRec::VertexProgram */ |
| #define _NEW_CURRENT_ATTRIB 0x10000000 /**< __GLcontextRec::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 __GLcontextRec::_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_LINE_WIDTH 0x400 |
| #define DD_POINT_SMOOTH 0x800 |
| #define DD_POINT_SIZE 0x1000 |
| #define DD_POINT_ATTEN 0x2000 |
| #define DD_TRI_TWOSTENCIL 0x4000 |
| /*@}*/ |
| |
| |
| /** |
| * \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 | \ |
| _NEW_COLOR_MATRIX) |
| /*@}*/ |
| |
| |
| |
| |
| /* This has to be included here. */ |
| #include "dd.h" |
| |
| |
| #define NUM_VERTEX_FORMAT_ENTRIES (sizeof(GLvertexformat) / sizeof(void *)) |
| |
| /** |
| * Core Mesa's support for tnl modules: |
| */ |
| struct gl_tnl_module |
| { |
| /** |
| * Vertex format to be lazily swapped into current dispatch. |
| */ |
| const GLvertexformat *Current; |
| |
| /** |
| * \name Record of functions swapped out. |
| * On restore, only need to swap these functions back in. |
| */ |
| /*@{*/ |
| struct { |
| _glapi_proc * location; |
| _glapi_proc function; |
| } Swapped[NUM_VERTEX_FORMAT_ENTRIES]; |
| GLuint SwapCount; |
| /*@}*/ |
| }; |
| |
| |
| /** |
| * 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; |
| }; |
| |
| |
| /** |
| * 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 GLcontext typedef names this structure. |
| */ |
| struct __GLcontextRec |
| { |
| /** State possibly shared with other contexts in the address space */ |
| struct gl_shared_state *Shared; |
| |
| /** \name API function pointer tables */ |
| /*@{*/ |
| struct _glapi_table *Save; /**< Display list save functions */ |
| struct _glapi_table *Exec; /**< Execute functions */ |
| struct _glapi_table *CurrentDispatch; /**< == Save or Exec !! */ |
| /*@}*/ |
| |
| GLvisual Visual; |
| GLframebuffer *DrawBuffer; /**< buffer for writing */ |
| GLframebuffer *ReadBuffer; /**< buffer for reading */ |
| GLframebuffer *WinSysDrawBuffer; /**< set with MakeCurrent */ |
| GLframebuffer *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 ColorMatrixStack; |
| 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; |
| |
| /** \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_histogram_attrib Histogram; |
| struct gl_minmax_attrib MinMax; |
| struct gl_convolution_attrib Convolution1D; |
| struct gl_convolution_attrib Convolution2D; |
| struct gl_convolution_attrib Separable2D; |
| |
| struct gl_evaluators EvalMap; /**< All evaluators */ |
| struct gl_feedback Feedback; /**< Feedback */ |
| struct gl_selection Select; /**< Selection */ |
| |
| struct gl_color_table ColorTable[COLORTABLE_MAX]; |
| struct gl_color_table ProxyColorTable[COLORTABLE_MAX]; |
| |
| struct gl_program_state Program; /**< general program state */ |
| struct gl_vertex_program_state VertexProgram; |
| struct gl_fragment_program_state FragmentProgram; |
| struct gl_ati_fragment_shader_state ATIFragmentShader; |
| |
| struct gl_shader_state Shader; /**< GLSL shader object state */ |
| |
| struct gl_query_state Query; /**< occlusion, timer queries */ |
| |
| 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 */ |
| |
| #if FEATURE_EXT_framebuffer_object |
| struct gl_renderbuffer *CurrentRenderbuffer; |
| #endif |
| |
| 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; |
| |
| /** Core tnl module support */ |
| struct gl_tnl_module TnlModule; |
| |
| /** |
| * \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 */ |