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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/mtypes.h')
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1 files changed, 2930 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/mtypes.h b/nx-X11/extras/Mesa/src/mesa/main/mtypes.h new file mode 100644 index 000000000..2a0bbd942 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/main/mtypes.h @@ -0,0 +1,2930 @@ +/** + * \file mtypes.h + * Main Mesa data structures. + * + * Please try to mark derived values with a leading underscore ('_'). + */ + +/* + * Mesa 3-D graphics library + * Version: 6.3 + * + * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * 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. + */ + + + +#ifndef TYPES_H +#define TYPES_H + + +#include "glheader.h" +#include "config.h" /* Hardwired parameters */ +#include "glapitable.h" +#include "glthread.h" +#include "math/m_matrix.h" /* GLmatrix */ + + +/** + * 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 + + +#if ACCUM_BITS != 16 +/* Software accum done with GLshort at this time */ +# error "illegal number of accumulation bits" +#endif + + +/** + * Stencil buffer data type. + */ +#if STENCIL_BITS==8 + typedef GLubyte GLstencil; +# define STENCIL_MAX 0xff +#elif STENCIL_BITS==16 + typedef GLushort GLstencil; +# define STENCIL_MAX 0xffff +#else +# error "illegal number of stencil bits" +#endif + + +/** + * Used for storing intermediate depth buffer values. + * The actual depth/Z buffer might use 16 or 32-bit values. + * + * \note Must be 32-bits! + */ +typedef GLuint GLdepth; + + +/** + * Fixed point data type. + */ +typedef int GLfixed; +/* + * Fixed point arithmetic macros + */ +#ifndef FIXED_FRAC_BITS +#define FIXED_FRAC_BITS 11 +#endif + +#define FIXED_SHIFT FIXED_FRAC_BITS +#define FIXED_ONE (1 << FIXED_SHIFT) +#define FIXED_HALF (1 << (FIXED_SHIFT-1)) +#define FIXED_FRAC_MASK (FIXED_ONE - 1) +#define FIXED_INT_MASK (~FIXED_FRAC_MASK) +#define FIXED_EPSILON 1 +#define FIXED_SCALE ((float) FIXED_ONE) +#define FIXED_DBL_SCALE ((double) FIXED_ONE) +#define FloatToFixed(X) (IROUND((X) * FIXED_SCALE)) +#define FixedToDouble(X) ((X) * (1.0 / FIXED_DBL_SCALE)) +#define IntToFixed(I) ((I) << FIXED_SHIFT) +#define FixedToInt(X) ((X) >> FIXED_SHIFT) +#define FixedToUns(X) (((unsigned int)(X)) >> FIXED_SHIFT) +#define FixedCeil(X) (((X) + FIXED_ONE - FIXED_EPSILON) & FIXED_INT_MASK) +#define FixedFloor(X) ((X) & FIXED_INT_MASK) +#define FixedToFloat(X) ((X) * (1.0F / FIXED_SCALE)) +#define PosFloatToFixed(X) FloatToFixed(X) +#define SignedFloatToFixed(X) FloatToFixed(X) + + + +/** + * \name Some forward type declarations + */ +/*@{*/ +struct _mesa_HashTable; +struct gl_pixelstore_attrib; +struct gl_texture_format; +struct gl_texture_image; +struct gl_texture_object; +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). + */ +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_SIX = 6, + VERT_ATTRIB_SEVEN = 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_MAX = 16 +}; + +/** + * 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_SIX (1 << VERT_ATTRIB_SIX) +#define VERT_BIT_SEVEN (1 << VERT_ATTRIB_SEVEN) +#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_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u))) +#define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g))) +/*@}*/ + + +/** + * Indexes for vertex program result attributes + */ +#define VERT_RESULT_HPOS 0 +#define VERT_RESULT_COL0 1 +#define VERT_RESULT_COL1 2 +#define VERT_RESULT_BFC0 3 +#define VERT_RESULT_BFC1 4 +#define VERT_RESULT_FOGC 5 +#define VERT_RESULT_PSIZ 6 +#define VERT_RESULT_TEX0 7 +#define VERT_RESULT_TEX1 8 +#define VERT_RESULT_TEX2 9 +#define VERT_RESULT_TEX3 10 +#define VERT_RESULT_TEX4 11 +#define VERT_RESULT_TEX5 12 +#define VERT_RESULT_TEX6 13 +#define VERT_RESULT_TEX7 14 +#define VERT_RESULT_MAX 15 + + +/** + * Indexes for fragment program input attributes. + */ +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 +}; + +/* + * Bitflags for fragment 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_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_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) +/*@}*/ + + +/** + * Indexes for all renderbuffers + */ +enum { + BUFFER_FRONT_LEFT = 0, /* the four standard color buffers */ + BUFFER_BACK_LEFT = 1, + BUFFER_FRONT_RIGHT = 2, + BUFFER_BACK_RIGHT = 3, + BUFFER_AUX0 = 4, /* optional aux buffer */ + BUFFER_AUX1 = 5, + BUFFER_AUX2 = 6, + BUFFER_AUX3 = 7, + BUFFER_DEPTH = 8, + BUFFER_STENCIL = 9, + BUFFER_ACCUM = 10, + BUFFER_COLOR0 = 11, /* generic renderbuffers */ + BUFFER_COLOR1 = 12, + BUFFER_COLOR2 = 13, + BUFFER_COLOR3 = 14, + BUFFER_COLOR4 = 15, + BUFFER_COLOR5 = 16, + BUFFER_COLOR6 = 17, + BUFFER_COLOR7 = 18, + BUFFER_COUNT = 19 +}; + +/** + * 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) + + +/** + * Data structure for color tables + */ +struct gl_color_table +{ + GLenum Format; /**< GL_ALPHA, GL_RGB, GL_RGB, etc */ + GLenum IntFormat; + GLuint Size; /**< number of entries (rows) in table */ + GLvoid *Table; /**< points to data of <Type> */ + GLenum Type; /**< GL_UNSIGNED_BYTE or GL_FLOAT */ + 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 EyeDirection[4]; /**< spotlight dir in eye coordinates */ + GLfloat SpotExponent; + GLfloat SpotCutoff; /**< in degrees */ + GLfloat _CosCutoff; /**< = MAX(0, cos(SpotCutoff)) */ + GLfloat ConstantAttenuation; + GLfloat LinearAttenuation; + GLfloat QuadraticAttenuation; + GLboolean Enabled; /**< On/off flag */ + + /** + * \name Derived fields + */ + /*@{*/ + GLuint _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 _NormDirection[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[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 + */ + /*@{*/ + GLboolean BlendEnabled; /**< Blending enabled flag */ + 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 */ +}; + + +/** + * Current attribute group (GL_CURRENT_BIT). + */ +struct gl_current_attrib +{ + /** + * \name Values valid only when FLUSH_VERTICES has been called. + */ + /*@{*/ + GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Current vertex attributes + * indexed by VERT_ATTRIB_* */ + GLfloat Index; /**< Current color index */ + GLboolean EdgeFlag; /**< Current edge flag */ + /*@}*/ + + /** + * \name Values are always valid. + * + * \note BTW, note how similar this set of attributes is to the SWvertex + * data type in the software rasterizer... + */ + /*@{*/ + GLfloat RasterPos[4]; /**< Current raster position */ + GLfloat RasterDistance; /**< Current raster distance */ + GLfloat RasterColor[4]; /**< Current raster color */ + GLfloat RasterSecondaryColor[4]; /**< Current raster secondary color */ + GLfloat RasterIndex; /**< Current raster index */ + GLfloat RasterTexCoords[MAX_TEXTURE_UNITS][4];/**< Current raster texcoords */ + GLboolean RasterPosValid; /**< Raster pos valid flag */ + /*@}*/ +}; + + +/** + * 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 OcclusionTest; /**< GL_HP_occlusion_test */ + GLboolean BoundsTest; /**< GL_EXT_depth_bounds_test */ + GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */ +}; + + +/** + * glEnable()/glDisable() attribute group (GL_ENABLE_BIT). + */ +struct gl_enable_attrib +{ + GLboolean AlphaTest; + GLboolean AutoNormal; + GLboolean Blend; + GLuint ClipPlanes; + GLboolean ColorMaterial; + GLboolean ColorTable; /* SGI_color_table */ + GLboolean PostColorMatrixColorTable; /* SGI_color_table */ + GLboolean PostConvolutionColorTable; /* SGI_color_table */ + GLboolean Convolution1D; + GLboolean Convolution2D; + GLboolean Separable2D; + GLboolean CullFace; + GLboolean DepthTest; + GLboolean Dither; + GLboolean Fog; + GLboolean Histogram; + GLboolean Light[MAX_LIGHTS]; + GLboolean Lighting; + GLboolean LineSmooth; + GLboolean LineStipple; + GLboolean IndexLogicOp; + GLboolean ColorLogicOp; + 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 MinMax; + GLboolean Normalize; + GLboolean PixelTexture; + GLboolean PointSmooth; + GLboolean PolygonOffsetPoint; + GLboolean PolygonOffsetLine; + GLboolean PolygonOffsetFill; + GLboolean PolygonSmooth; + GLboolean PolygonStipple; + GLboolean RescaleNormals; + GLboolean Scissor; + GLboolean Stencil; + GLboolean StencilTwoSide; /* GL_EXT_stencil_two_side */ + GLboolean MultisampleEnabled; /* GL_ARB_multisample */ + GLboolean SampleAlphaToCoverage; /* GL_ARB_multisample */ + GLboolean SampleAlphaToOne; /* GL_ARB_multisample */ + GLboolean SampleCoverage; /* GL_ARB_multisample */ + GLboolean SampleCoverageInvert; /* GL_ARB_multisample */ + GLboolean RasterPositionUnclipped; /* GL_IBM_rasterpos_clip */ + GLuint Texture[MAX_TEXTURE_IMAGE_UNITS]; + GLuint TexGen[MAX_TEXTURE_COORD_UNITS]; + /* SGI_texture_color_table */ + GLboolean TextureColorTable[MAX_TEXTURE_IMAGE_UNITS]; + /* GL_NV_vertex_program */ + GLboolean VertexProgram; + GLboolean VertexProgramPointSize; + GLboolean VertexProgramTwoSide; + /* GL_ARB_point_sprite / GL_NV_point_sprite */ + GLboolean PointSprite; + GLboolean FragmentShaderATI; +}; + + +/** + * 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 */ +}; + + +/** + * 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 ColorMaterialFace; /**< GL_FRONT, BACK or FRONT_AND_BACK */ + GLenum ColorMaterialMode; /**< GL_AMBIENT, GL_DIFFUSE, etc */ + GLuint ColorMaterialBitmask; /**< bitmask formed from Face and Mode */ + GLboolean ColorMaterialEnabled; + + struct gl_light EnabledList; /**< List sentinel */ + + /** + * Derived state for optimizations: + */ + /*@{*/ + GLboolean _NeedEyeCoords; + GLboolean _NeedVertices; /**< Use fast shader? */ + GLuint _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 */ + GLfloat _Width; /**< Clamped Line width */ +}; + + +/** + * Display list attribute group (GL_LIST_BIT). + */ +struct gl_list_attrib +{ + GLuint ListBase; +}; + + +/** + * Used by device drivers to hook new commands into display lists. + */ +struct gl_list_instruction +{ + GLuint Size; + void (*Execute)( GLcontext *ctx, void *data ); + void (*Destroy)( GLcontext *ctx, void *data ); + void (*Print)( GLcontext *ctx, void *data ); +}; + +#define MAX_DLIST_EXT_OPCODES 16 + +/** + * Used by device drivers to hook new commands into display lists. + */ +struct gl_list_extensions +{ + struct gl_list_instruction Opcode[MAX_DLIST_EXT_OPCODES]; + GLuint NumOpcodes; +}; + + +/** + * Multisample attribute group (GL_MULTISAMPLE_BIT). + */ +struct gl_multisample_attrib +{ + GLboolean Enabled; + GLboolean SampleAlphaToCoverage; + GLboolean SampleAlphaToOne; + GLboolean SampleCoverage; + GLfloat SampleCoverageValue; + GLboolean SampleCoverageInvert; +}; + + +/** + * Pixel attribute group (GL_PIXEL_MODE_BIT). + */ +struct gl_pixel_attrib +{ + GLenum ReadBuffer; /**< source buffer for glRead/CopyPixels() */ + GLfloat RedBias, RedScale; + GLfloat GreenBias, GreenScale; + GLfloat BlueBias, BlueScale; + GLfloat AlphaBias, AlphaScale; + GLfloat DepthBias, DepthScale; + GLint IndexShift, IndexOffset; + GLboolean MapColorFlag; + GLboolean MapStencilFlag; + GLfloat ZoomX, ZoomY; + /* XXX move these out of gl_pixel_attrib */ + GLint MapStoSsize; /**< Size of each pixel map */ + GLint MapItoIsize; + GLint MapItoRsize; + GLint MapItoGsize; + GLint MapItoBsize; + GLint MapItoAsize; + GLint MapRtoRsize; + GLint MapGtoGsize; + GLint MapBtoBsize; + GLint MapAtoAsize; + GLint MapStoS[MAX_PIXEL_MAP_TABLE]; /**< Pixel map tables */ + GLfloat MapItoI[MAX_PIXEL_MAP_TABLE]; + GLfloat MapItoR[MAX_PIXEL_MAP_TABLE]; + GLfloat MapItoG[MAX_PIXEL_MAP_TABLE]; + GLfloat MapItoB[MAX_PIXEL_MAP_TABLE]; + GLfloat MapItoA[MAX_PIXEL_MAP_TABLE]; + GLubyte MapItoR8[MAX_PIXEL_MAP_TABLE]; /**< converted to 8-bit color */ + GLubyte MapItoG8[MAX_PIXEL_MAP_TABLE]; + GLubyte MapItoB8[MAX_PIXEL_MAP_TABLE]; + GLubyte MapItoA8[MAX_PIXEL_MAP_TABLE]; + GLfloat MapRtoR[MAX_PIXEL_MAP_TABLE]; + GLfloat MapGtoG[MAX_PIXEL_MAP_TABLE]; + GLfloat MapBtoB[MAX_PIXEL_MAP_TABLE]; + GLfloat MapAtoA[MAX_PIXEL_MAP_TABLE]; + /** GL_EXT_histogram */ + GLboolean HistogramEnabled; + GLboolean MinMaxEnabled; + /** GL_SGIS_pixel_texture */ + GLboolean PixelTextureEnabled; + GLenum FragmentRgbSource; + GLenum FragmentAlphaSource; + /** GL_SGI_color_matrix */ + GLfloat PostColorMatrixScale[4]; /**< RGBA */ + GLfloat PostColorMatrixBias[4]; /**< RGBA */ + /** GL_SGI_color_table */ + GLfloat ColorTableScale[4]; + GLfloat ColorTableBias[4]; + GLboolean ColorTableEnabled; + GLfloat PCCTscale[4]; + GLfloat PCCTbias[4]; + GLboolean PostConvolutionColorTableEnabled; + GLfloat PCMCTscale[4]; + GLfloat PCMCTbias[4]; + GLboolean PostColorMatrixColorTableEnabled; + /** GL_SGI_texture_color_table */ + GLfloat TextureColorTableScale[4]; + GLfloat TextureColorTableBias[4]; + /** Convolution */ + GLboolean Convolution1DEnabled; + GLboolean Convolution2DEnabled; + GLboolean Separable2DEnabled; + GLfloat ConvolutionBorderColor[3][4]; + GLenum ConvolutionBorderMode[3]; + GLfloat ConvolutionFilterScale[3][4]; + GLfloat ConvolutionFilterBias[3][4]; + GLfloat PostConvolutionScale[4]; /**< RGBA */ + GLfloat PostConvolutionBias[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 _Size; /**< Size clamped to Const.Min/MaxPointSize */ + 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_point_sprite / GL_NV_point_sprite */ + GLboolean CoordReplace[MAX_TEXTURE_UNITS]; /**< GL_NV/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). + */ +struct gl_stencil_attrib +{ + GLboolean Enabled; /**< Enabled flag */ + GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */ + GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 1) */ + GLenum Function[2]; /**< Stencil function */ + GLenum FailFunc[2]; /**< Fail function */ + GLenum ZPassFunc[2]; /**< Depth buffer pass function */ + GLenum ZFailFunc[2]; /**< Depth buffer fail function */ + GLstencil Ref[2]; /**< Reference value */ + GLstencil ValueMask[2]; /**< Value mask */ + GLstencil WriteMask[2]; /**< Write mask */ + GLstencil Clear; /**< Clear value */ +}; + + +#define NUM_TEXTURE_TARGETS 5 /* 1D, 2D, 3D, CUBE and RECT */ + +/** + * An index for each type of texture object + */ +/*@{*/ +#define TEXTURE_1D_INDEX 0 +#define TEXTURE_2D_INDEX 1 +#define TEXTURE_3D_INDEX 2 +#define TEXTURE_CUBE_INDEX 3 +#define TEXTURE_RECT_INDEX 4 +/*@}*/ + +/** + * Bit flags for each type of texture object + * Used for Texture.Unit[]._ReallyEnabled flags. + */ +/*@{*/ +#define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX) +#define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX) +#define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX) +#define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX) +#define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_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) +/*@}*/ + + +/* A selection of state flags to make driver and module's lives easier. */ +#define ENABLE_TEXGEN0 0x1 +#define ENABLE_TEXGEN1 0x2 +#define ENABLE_TEXGEN2 0x4 +#define ENABLE_TEXGEN3 0x8 +#define ENABLE_TEXGEN4 0x10 +#define ENABLE_TEXGEN5 0x20 +#define ENABLE_TEXGEN6 0x40 +#define ENABLE_TEXGEN7 0x80 + +#define ENABLE_TEXMAT0 0x1 /* Ie. not the identity matrix */ +#define ENABLE_TEXMAT1 0x2 +#define ENABLE_TEXMAT2 0x4 +#define ENABLE_TEXMAT3 0x8 +#define ENABLE_TEXMAT4 0x10 +#define ENABLE_TEXMAT5 0x20 +#define ENABLE_TEXMAT6 0x40 +#define ENABLE_TEXMAT7 0x80 + +#define ENABLE_TEXGEN(i) (ENABLE_TEXGEN0 << (i)) +#define ENABLE_TEXMAT(i) (ENABLE_TEXMAT0 << (i)) + + +/** + * 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); + +/** + * TexImage store function. This is called by the glTex[Sub]Image + * functions and is responsible for converting the user-specified texture + * image into a specific (hardware) image format. + */ +typedef GLboolean (*StoreTexImageFunc)(GLcontext *ctx, GLuint dims, + GLenum baseInternalFormat, + const struct gl_texture_format *dstFormat, + GLvoid *dstAddr, + GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, + GLint dstRowStride, GLint dstImageStride, + GLint srcWidth, GLint srcHeight, GLint srcDepth, + GLenum srcFormat, GLenum srcType, + const GLvoid *srcAddr, + const struct gl_pixelstore_attrib *srcPacking); + + + +/** + * Texture format record + */ +struct gl_texture_format +{ + GLint MesaFormat; /**< One of the MESA_FORMAT_* values */ + + GLenum BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_ALPHA, + * GL_LUMINANCE, GL_LUMINANCE_ALPHA, + * GL_INTENSITY, GL_COLOR_INDEX or + * GL_DEPTH_COMPONENT. + */ + GLenum DataType; /**< GL_FLOAT or GL_UNSIGNED_NORMALIZED_ARB */ + GLubyte RedBits; /**< Bits per texel component */ + GLubyte GreenBits; /**< These are just rough approximations for */ + GLubyte BlueBits; /**< compressed texture formats. */ + GLubyte AlphaBits; + GLubyte LuminanceBits; + GLubyte IntensityBits; + GLubyte IndexBits; + GLubyte DepthBits; + + GLuint TexelBytes; /**< Bytes per texel, 0 if compressed format */ + + StoreTexImageFunc StoreImage; + + /** + * \name Texel fetch function pointers + */ + /*@{*/ + FetchTexelFuncC FetchTexel1D; + FetchTexelFuncC FetchTexel2D; + FetchTexelFuncC FetchTexel3D; + FetchTexelFuncF FetchTexel1Df; + FetchTexelFuncF FetchTexel2Df; + FetchTexelFuncF FetchTexel3Df; + /*@}*/ + + StoreTexelFunc StoreTexel; +}; + + +/** + * Texture image state. Describes the dimensions of a texture image, + * the texel format and pointers to Texel Fetch functions. + */ +struct gl_texture_image +{ + GLenum Format; /**< Either GL_RGB, GL_RGBA, GL_ALPHA, + * GL_LUMINANCE, GL_LUMINANCE_ALPHA, + * GL_INTENSITY, GL_COLOR_INDEX or + * GL_DEPTH_COMPONENT only. + * Used for choosing TexEnv arithmetic. + */ + GLint IntFormat; /**< Internal format as given by the user */ + GLuint Border; /**< 0 or 1 */ + GLuint Width; /**< = 2^WidthLog2 + 2*Border */ + GLuint Height; /**< = 2^HeightLog2 + 2*Border */ + GLuint Depth; /**< = 2^DepthLog2 + 2*Border */ + GLuint RowStride; /**< == Width unless IsClientData and padded */ + 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 */ + GLvoid *Data; /**< Image data, accessed via FetchTexel() */ + GLboolean IsClientData; /**< Data owned by client? */ + GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */ + + const struct gl_texture_format *TexFormat; + + struct gl_texture_object *TexObject; /**< Pointer back to parent object */ + + FetchTexelFuncC FetchTexelc; /**< GLchan texel fetch function pointer */ + FetchTexelFuncF FetchTexelf; /**< Float texel fetch function pointer */ + + GLboolean IsCompressed; /**< GL_ARB_texture_compression */ + GLuint CompressedSize; /**< GL_ARB_texture_compression */ + + /** + * \name For device driver: + */ + /*@{*/ + void *DriverData; /**< Arbitrary device driver data */ + /*@}*/ +}; + + +/** + * Indexes for cube map faces. + */ +/*@{*/ +#define FACE_POS_X 0 +#define FACE_NEG_X 1 +#define FACE_POS_Y 2 +#define FACE_NEG_Y 3 +#define FACE_POS_Z 4 +#define FACE_NEG_Z 5 +#define MAX_FACES 6 +/*@}*/ + + +/** + * 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 */ + GLchan _BorderChan[4]; /**< clamped, as GLchan */ + 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 */ + GLboolean CompareFlag; /**< GL_SGIX_shadow */ + GLenum CompareOperator; /**< GL_SGIX_shadow */ + GLfloat ShadowAmbient; /**< GL_ARB_shadow_ambient */ + GLenum CompareMode; /**< GL_ARB_shadow */ + GLenum CompareFunc; /**< GL_ARB_shadow */ + GLenum DepthMode; /**< GL_ARB_depth_texture */ + GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */ + GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */ + GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */ + GLboolean _IsPowerOfTwo; /**< Are all image dimensions powers of two? */ + GLboolean Complete; /**< Is texture object complete? */ + + /** 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 */ +}; + + +/** + * Texture combine environment state. + * + * \todo + * If GL_NV_texture_env_combine4 is ever supported, the arrays in this + * structure will need to be expanded for 4 elements. + */ +struct gl_tex_env_combine_state +{ + GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ + GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ + GLenum SourceRGB[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ + GLenum SourceA[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ + GLenum OperandRGB[3]; /**< SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */ + GLenum OperandA[3]; /**< SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */ + GLuint ScaleShiftRGB; /**< 0, 1 or 2 */ + GLuint ScaleShiftA; /**< 0, 1 or 2 */ + GLuint _NumArgsRGB; /**< Number of inputs used for the combine mode. */ + GLuint _NumArgsA; /**< Number of inputs used for the combine mode. */ +}; + + +/** + * 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 +{ + GLuint Enabled; /**< bitmask of TEXTURE_*_BIT flags */ + GLuint _ReallyEnabled; /**< 0 or exactly one of TEXTURE_*_BIT flags */ + + GLenum EnvMode; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */ + GLfloat EnvColor[4]; + GLuint TexGenEnabled; /**< Bitwise-OR of [STRQ]_BIT values */ + /** \name Tex coord generation mode + * Either GL_OBJECT_LINEAR, GL_EYE_LINEAR or GL_SPHERE_MAP. */ + /*@{*/ + GLenum GenModeS; + GLenum GenModeT; + GLenum GenModeR; + GLenum GenModeQ; + /*@}*/ + GLuint _GenBitS; + GLuint _GenBitT; + GLuint _GenBitR; + GLuint _GenBitQ; + GLuint _GenFlags; /**< bitwise or of GenBit[STRQ] */ + GLfloat ObjectPlaneS[4]; + GLfloat ObjectPlaneT[4]; + GLfloat ObjectPlaneR[4]; + GLfloat ObjectPlaneQ[4]; + GLfloat EyePlaneS[4]; + GLfloat EyePlaneT[4]; + GLfloat EyePlaneR[4]; + GLfloat EyePlaneQ[4]; + GLfloat LodBias; /**< for biasing mipmap levels */ + + /** + * \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; + + struct gl_texture_object *Current1D; + struct gl_texture_object *Current2D; + struct gl_texture_object *Current3D; + struct gl_texture_object *CurrentCubeMap; /**< GL_ARB_texture_cube_map */ + struct gl_texture_object *CurrentRect; /**< GL_NV_texture_rectangle */ + + struct gl_texture_object *_Current; /**< Points to really enabled tex obj */ + + struct gl_texture_object Saved1D; /**< only used by glPush/PopAttrib */ + struct gl_texture_object Saved2D; + struct gl_texture_object Saved3D; + struct gl_texture_object SavedCubeMap; + struct gl_texture_object SavedRect; + + /* GL_SGI_texture_color_table */ + struct gl_color_table ColorTable; + struct gl_color_table ProxyColorTable; + GLboolean ColorTableEnabled; +}; + +struct texenvprog_cache { + GLuint hash; + void *key; + void *data; + struct texenvprog_cache *next; +}; + +/** + * Texture attribute group (GL_TEXTURE_BIT). + */ +struct gl_texture_attrib +{ + /** + * name multitexture + */ + /**@{*/ + GLuint CurrentUnit; /**< Active texture unit */ + GLuint _EnabledUnits; /**< one bit set for each really-enabled unit */ + GLuint _EnabledCoordUnits; /**< one bit per enabled coordinate unit */ + GLuint _GenFlags; /**< for texgen */ + GLuint _TexGenEnabled; + GLuint _TexMatEnabled; + /**@}*/ + + struct gl_texture_unit Unit[MAX_TEXTURE_UNITS]; + + struct gl_texture_object *Proxy1D; + struct gl_texture_object *Proxy2D; + struct gl_texture_object *Proxy3D; + struct gl_texture_object *ProxyCubeMap; + struct gl_texture_object *ProxyRect; + + /** GL_EXT_shared_texture_palette */ + GLboolean SharedPalette; + struct gl_color_table Palette; + + /** Cached texenv fragment programs */ + struct texenvprog_cache *env_fp_cache; +}; + + +/** + * 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 */ + GLuint ClipPlanesEnabled; /**< on/off bitmask */ + GLboolean Normalize; /**< Normalize all normals? */ + GLboolean RescaleNormals; /**< GL_EXT_rescale_normal */ + GLboolean RasterPositionUnclipped; /**< GL_IBM_rasterpos_clip */ + + 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. */ +}; + + +/** + * Node for the attribute stack. + */ +struct gl_attrib_node +{ + GLbitfield kind; + void *data; + struct gl_attrib_node *next; +}; + + +/** + * GL_ARB_vertex/pixel_buffer_object buffer object + */ +struct gl_buffer_object +{ + GLint RefCount; + GLuint Name; + GLenum Usage; + GLenum Access; + GLvoid *Pointer; /**< Only valid while buffer is mapped */ + GLsizeiptrARB Size; /**< Size of storage in bytes */ + GLubyte *Data; /**< Location of storage either in RAM or VRAM. */ + GLboolean OnCard; /**< Is buffer in VRAM? (hardware drivers) */ +}; + + + +/** + * Client pixel packing/unpacking attributes + */ +struct gl_pixelstore_attrib +{ + GLint Alignment; + GLint RowLength; + GLint SkipPixels; + GLint SkipRows; + GLint ImageHeight; /**< for GL_EXT_texture3D */ + GLint SkipImages; /**< for GL_EXT_texture3D */ + 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 */ +}; + + +#define CA_CLIENT_DATA 0x1 /**< Data not allocated by mesa */ + + +/** + * 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 */ + GLsizei Stride; /**< user-specified stride */ + GLsizei StrideB; /**< actual stride in bytes */ + const GLubyte *Ptr; /**< Points to array data */ + GLuint Enabled; /**< one of the _NEW_ARRAY_ bits */ + GLboolean Normalized; /**< GL_ARB_vertex_program */ + + /**< GL_ARB_vertex_buffer_object */ + struct gl_buffer_object *BufferObj; + GLuint _MaxElement; + + GLuint Flags; +}; + + +/** + * Vertex array state + */ +struct gl_array_attrib +{ + struct gl_client_array Vertex; /**< client data descriptors */ + 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 TexCoord[MAX_TEXTURE_COORD_UNITS]; + struct gl_client_array EdgeFlag; + + struct gl_client_array VertexAttrib[VERT_ATTRIB_MAX]; /**< GL_NV_vertex_program */ + + GLint ActiveTexture; /**< Client Active Texture */ + GLuint LockFirst; /**< GL_EXT_compiled_vertex_array */ + GLuint LockCount; /**< GL_EXT_compiled_vertex_array */ + + GLuint _Enabled; /**< _NEW_ARRAY_* - bit set if array enabled */ + GLuint NewState; /**< _NEW_ARRAY_* */ + +#if FEATURE_ARB_vertex_buffer_object + struct gl_buffer_object *NullBufferObj; + struct gl_buffer_object *ArrayBufferObj; + struct gl_buffer_object *ElementArrayBufferObj; +#endif + GLuint _MaxElement; /* Min of all enabled array's maxes */ +}; + + +/** + * Feedback buffer state + */ +struct gl_feedback +{ + GLenum Type; + GLuint _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 */ + /*@}*/ +}; + + +/** + * NV_fragment_program runtime state + */ +struct fp_machine +{ + GLfloat Temporaries[MAX_NV_FRAGMENT_PROGRAM_TEMPS][4]; + GLfloat Inputs[MAX_NV_FRAGMENT_PROGRAM_INPUTS][4]; + GLfloat Outputs[MAX_NV_FRAGMENT_PROGRAM_OUTPUTS][4]; + GLuint CondCodes[4]; +}; + +/** + * ATI_fragment_shader runtime state + */ +#define ATI_FS_INPUT_PRIMARY 0 +#define ATI_FS_INPUT_SECONDARY 1 + +/* 6 register sets - 2 inputs (primary, secondary) */ +struct atifs_machine +{ + GLfloat Registers[6][4]; + GLfloat PrevPassRegisters[6][4]; + GLfloat Inputs[2][4]; + GLuint pass; +}; + + +/** + * Names of the various vertex/fragment register files + */ +enum register_file +{ + PROGRAM_TEMPORARY, + PROGRAM_INPUT, + PROGRAM_OUTPUT, + PROGRAM_LOCAL_PARAM, + PROGRAM_ENV_PARAM, + PROGRAM_NAMED_PARAM, + PROGRAM_STATE_VAR, + PROGRAM_WRITE_ONLY, + PROGRAM_ADDRESS, + PROGRAM_UNDEFINED /* invalid value */ +}; + + +/** Vertex and fragment instructions */ +struct vp_instruction; +struct fp_instruction; +struct atifs_instruction; +struct program_parameter_list; + + +/** + * Base class for any kind of program object + */ +struct program +{ + GLuint Id; + GLubyte *String; /**< Null-terminated program text */ + GLint RefCount; + GLenum Target; + GLenum Format; /**< String encoding format */ + GLboolean Resident; + GLfloat LocalParams[MAX_PROGRAM_LOCAL_PARAMS][4]; + GLuint NumInstructions; /* GL_ARB_vertex/fragment_program */ + GLuint NumTemporaries; + GLuint NumParameters; + GLuint NumAttributes; + GLuint NumAddressRegs; +}; + + +/** Vertex program object */ +struct vertex_program +{ + struct program Base; /* base class */ + struct vp_instruction *Instructions; /* Compiled instructions */ + GLboolean IsNVProgram; /* GL_NV_vertex_program ? */ + GLboolean IsPositionInvariant; /* GL_NV_vertex_program1_1 */ + GLuint InputsRead; /* Bitmask of which input regs are read */ + GLuint OutputsWritten; /* Bitmask of which output regs are written to */ + struct program_parameter_list *Parameters; /**< array [NumParameters] */ + void *TnlData; /* should probably use Base.DriverData */ +}; + + +/** Fragment program object */ +struct fragment_program +{ + struct program Base; /**< base class */ + struct fp_instruction *Instructions; /**< Compiled instructions */ + GLuint InputsRead; /**< Bitmask of which input regs are read */ + GLuint OutputsWritten; /**< Bitmask of which output regs are written to */ + GLuint TexturesUsed[MAX_TEXTURE_IMAGE_UNITS]; /**< TEXTURE_x_INDEX bitmask */ + GLuint NumAluInstructions; /**< GL_ARB_fragment_program */ + GLuint NumTexInstructions; + GLuint NumTexIndirections; + GLenum FogOption; + struct program_parameter_list *Parameters; /**< array [NumParameters] */ + +#ifdef USE_TCC + char c_str[4096]; /* experimental... */ + int c_strlen; +#endif +}; + +struct ati_fragment_shader +{ + struct program Base; + struct atifs_instruction *Instructions; + GLfloat Constants[8][4]; + GLint NumPasses; + GLint cur_pass; +}; + +/** + * State common to vertex and fragment programs. + */ +struct gl_program_state +{ + GLint ErrorPos; /* GL_PROGRAM_ERROR_POSITION_NV */ + const char *ErrorString; /* GL_PROGRAM_ERROR_STRING_NV */ +}; + + +/** + * State vars for GL_ARB/GL_NV_vertex_program + */ +struct gl_vertex_program_state +{ + GLboolean Enabled; /**< GL_VERTEX_PROGRAM_NV */ + GLboolean _Enabled; /**< Really enabled? */ + GLboolean PointSizeEnabled; /**< GL_VERTEX_PROGRAM_POINT_SIZE_NV */ + GLboolean TwoSideEnabled; /**< GL_VERTEX_PROGRAM_TWO_SIDE_NV */ + struct vertex_program *Current; /**< ptr to currently bound program */ + + GLenum TrackMatrix[MAX_NV_VERTEX_PROGRAM_PARAMS / 4]; + GLenum TrackMatrixTransform[MAX_NV_VERTEX_PROGRAM_PARAMS / 4]; + + GLfloat Parameters[MAX_NV_VERTEX_PROGRAM_PARAMS][4]; /* Env params */ + /* Only used during program execution (may be moved someday): */ + GLfloat Temporaries[MAX_NV_VERTEX_PROGRAM_TEMPS][4]; + GLfloat Inputs[MAX_NV_VERTEX_PROGRAM_INPUTS][4]; + GLuint InputsSize[MAX_NV_VERTEX_PROGRAM_INPUTS]; + GLfloat Outputs[MAX_NV_VERTEX_PROGRAM_OUTPUTS][4]; + GLint AddressReg[4]; + +#if FEATURE_MESA_program_debug + GLprogramcallbackMESA Callback; + GLvoid *CallbackData; + GLboolean CallbackEnabled; + GLuint CurrentPosition; +#endif +}; + + +/* + * State for GL_ARB/NV_fragment_program + */ +struct gl_fragment_program_state +{ + GLboolean Enabled; /* GL_VERTEX_PROGRAM_NV */ + GLboolean _Enabled; /* Really enabled? */ + GLboolean _Active; /* Really really enabled? */ + struct fragment_program *Current; /* ptr to currently bound program */ + struct fragment_program *_Current; /* ptr to currently active program */ + struct fp_machine Machine; /* machine state */ + GLfloat Parameters[MAX_NV_FRAGMENT_PROGRAM_PARAMS][4]; /* Env params */ + +#if FEATURE_MESA_program_debug + GLprogramcallbackMESA Callback; + GLvoid *CallbackData; + GLboolean CallbackEnabled; + GLuint CurrentPosition; +#endif +}; + +/* + * State for GL_fragment_shader + */ +struct gl_ati_fragment_shader_state +{ + GLboolean Enabled; + GLboolean _Enabled; + GLboolean Compiling; + struct atifs_machine Machine; /* machine state */ + struct ati_fragment_shader *Current; +}; + +/* + * State for GL_ARB_occlusion_query + */ +struct gl_occlusion_state +{ + GLboolean Active; + GLuint CurrentQueryObject; + GLuint PassedCounter; + struct _mesa_HashTable *QueryObjects; +}; + +/** + * gl2 unique interface identifier. + * Each gl2 interface has its own interface id used for object queries. + */ +enum gl2_uiid +{ + UIID_UNKNOWN, /* supported by all objects */ + UIID_GENERIC, /* generic object */ + UIID_CONTAINER, /* contains generic objects */ + UIID_SHADER, /* shader object */ + UIID_FRAGMENT_SHADER, /* fragment shader */ + UIID_VERTEX_SHADER, /* vertex shader */ + UIID_PROGRAM, /* program object */ + UIID_3DLABS_SHHANDLE /* encapsulates 3dlabs' ShHandle */ +}; + +struct gl2_unknown_intf +{ + GLvoid (* AddRef) (struct gl2_unknown_intf **); + GLvoid (* Release) (struct gl2_unknown_intf **); + struct gl2_unknown_intf **(* QueryInterface) (struct gl2_unknown_intf **, enum gl2_uiid uiid); +}; + +struct gl2_generic_intf +{ + struct gl2_unknown_intf _unknown; + GLvoid (* Delete) (struct gl2_generic_intf **); + GLenum (* GetType) (struct gl2_generic_intf **); + GLhandleARB (* GetName) (struct gl2_generic_intf **); + GLboolean (* GetDeleteStatus) (struct gl2_generic_intf **); + const GLcharARB *(* GetInfoLog) (struct gl2_generic_intf **); +}; + +struct gl2_container_intf +{ + struct gl2_generic_intf _generic; + GLboolean (* Attach) (struct gl2_container_intf **, struct gl2_generic_intf **); + GLboolean (* Detach) (struct gl2_container_intf **, struct gl2_generic_intf **); + GLsizei (* GetAttachedCount) (struct gl2_container_intf **); + struct gl2_generic_intf **(* GetAttached) (struct gl2_container_intf **, GLuint); +}; + +struct gl2_shader_intf +{ + struct gl2_generic_intf _generic; + GLenum (* GetSubType) (struct gl2_shader_intf **); + GLboolean (* GetCompileStatus) (struct gl2_shader_intf **); + GLvoid (* SetSource) (struct gl2_shader_intf **, GLcharARB *, GLint *, GLsizei); + const GLcharARB *(* GetSource) (struct gl2_shader_intf **); + GLvoid (* Compile) (struct gl2_shader_intf **); +}; + +struct gl2_program_intf +{ + struct gl2_container_intf _container; + GLboolean (* GetLinkStatus) (struct gl2_program_intf **); + GLboolean (* GetValidateStatus) (struct gl2_program_intf **); + GLvoid (* Link) (struct gl2_program_intf **); + GLvoid (* Validate) (struct gl2_program_intf **); +}; + +struct gl2_fragment_shader_intf +{ + struct gl2_shader_intf _shader; +}; + +struct gl2_vertex_shader_intf +{ + struct gl2_shader_intf _shader; +}; + +struct gl2_3dlabs_shhandle_intf +{ + struct gl2_unknown_intf _unknown; + GLvoid *(* GetShHandle) (struct gl2_3dlabs_shhandle_intf **); +}; + +struct gl_shader_objects_state +{ + struct gl2_program_intf **current_program; +}; + + +/** + * 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 */ + + /** + * \name Default texture objects (shared by all multi-texture units) + */ + /*@{*/ + struct gl_texture_object *Default1D; + struct gl_texture_object *Default2D; + struct gl_texture_object *Default3D; + struct gl_texture_object *DefaultCubeMap; + struct gl_texture_object *DefaultRect; + /*@}*/ + + /** + * \name Vertex/fragment programs + */ + /*@{*/ + struct _mesa_HashTable *Programs; +#if FEATURE_ARB_vertex_program + struct program *DefaultVertexProgram; +#endif +#if FEATURE_ARB_fragment_program + struct program *DefaultFragmentProgram; +#endif +#if FEATURE_ATI_fragment_shader + struct program *DefaultFragmentShader; +#endif + /*@}*/ + +#if FEATURE_ARB_vertex_buffer_object || FEATURE_ARB_pixel_buffer_object + struct _mesa_HashTable *BufferObjects; +#endif + + struct _mesa_HashTable *GL2Objects; + +#if FEATURE_EXT_framebuffer_object + struct _mesa_HashTable *RenderBuffers; + struct _mesa_HashTable *FrameBuffers; +#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 +{ + GLuint Name; + GLint RefCount; + GLuint Width, Height; + GLenum InternalFormat; /* The user-specified value */ + GLenum _BaseFormat; /* Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or */ + /* GL_STENCIL_INDEX. */ + GLenum DataType; /* Type of values passed to the Get/Put functions */ + GLubyte ComponentSizes[4]; /* bits per component or channel */ + GLvoid *Data; + + /* 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 point 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; /* GL_NONE or GL_TEXTURE or GL_RENDERBUFFER_EXT */ + GLboolean Complete; + + /* IF Type == GL_RENDERBUFFER_EXT: */ + struct gl_renderbuffer *Renderbuffer; + + /* IF Type == GL_TEXTURE: */ + struct gl_texture_object *Texture; + GLuint TextureLevel; + GLuint CubeMapFace; /* 0 .. 5, for cube map textures */ + GLuint Zoffset; /* for 3D 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 +{ + GLuint Name; /* if zero, this is a window system framebuffer */ + GLint RefCount; + + GLvisual Visual; /**< The corresponding 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 */ + /*@}*/ + + GLenum _Status; /* One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */ + + /* 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; + + /* These are computed from ColorDrawBuffer and ColorReadBuffer */ + GLuint _ColorDrawBufferMask[MAX_DRAW_BUFFERS]; /* Mask of BUFFER_BIT_* flags */ + GLuint _ColorReadBufferMask; /* Zero or one of BUFFER_BIT_ flags */ + + /* These are computed from _Draw/ReadBufferMask, above. */ + GLuint _NumColorDrawBuffers[MAX_DRAW_BUFFERS]; + struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS][4]; + struct gl_renderbuffer *_ColorReadBuffer; + +#if OLD_RENDERBUFFER + /* XXX THIS IS TEMPORARY */ + GLuint _ColorDrawBit[MAX_DRAW_BUFFERS][4]; +#endif + + /** Delete this framebuffer */ + void (*Delete)(struct gl_framebuffer *fb); +}; + + +/** + * Constants which may be overridden by device driver during context creation + * but are never changed after that. + */ +struct gl_constants +{ + GLint MaxTextureLevels; /**< Maximum number of allowed mipmap levels. */ + GLint Max3DTextureLevels; /**< Maximum number of allowed mipmap levels for 3D texture targets. */ + GLint MaxCubeTextureLevels; /**< Maximum number of allowed mipmap levels for GL_ARB_texture_cube_map */ + GLint MaxTextureRectSize; /* GL_NV_texture_rectangle */ + GLuint MaxTextureCoordUnits; + GLuint MaxTextureImageUnits; + GLuint MaxTextureUnits; /* = MAX(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; + /* GL_ARB_vertex_program */ + GLuint MaxVertexProgramInstructions; + GLuint MaxVertexProgramAttribs; + GLuint MaxVertexProgramTemps; + GLuint MaxVertexProgramLocalParams; + GLuint MaxVertexProgramEnvParams; + GLuint MaxVertexProgramAddressRegs; + /* GL_ARB_fragment_program */ + GLuint MaxFragmentProgramInstructions; + GLuint MaxFragmentProgramAttribs; + GLuint MaxFragmentProgramTemps; + GLuint MaxFragmentProgramLocalParams; + GLuint MaxFragmentProgramEnvParams; + GLuint MaxFragmentProgramAddressRegs; + GLuint MaxFragmentProgramAluInstructions; + GLuint MaxFragmentProgramTexInstructions; + GLuint MaxFragmentProgramTexIndirections; + /* vertex or fragment program */ + GLuint MaxProgramMatrices; + GLuint MaxProgramMatrixStackDepth; + /* vertex array / buffer object bounds checking */ + GLboolean CheckArrayBounds; + /* GL_ARB_draw_buffers */ + GLuint MaxDrawBuffers; + /* GL_OES_read_format */ + GLenum ColorReadFormat; + GLenum ColorReadType; + /* GL_EXT_framebuffer_object */ + GLuint MaxColorAttachments; + GLuint MaxRenderbufferSize; +}; + + +/** + * Enable flag for each OpenGL extension. Different device drivers will + * enable different extensions at runtime. + */ +struct gl_extensions +{ + /** + * \name Flags to quickly test if certain extensions are available. + * + * Not every extension needs to have such a flag, but it's encouraged. + */ + /*@{*/ + GLboolean dummy; /* don't remove this! */ + GLboolean ARB_depth_texture; + GLboolean ARB_draw_buffers; + GLboolean ARB_fragment_program; + GLboolean ARB_fragment_shader; + GLboolean ARB_half_float_pixel; + GLboolean ARB_imaging; + GLboolean ARB_multisample; + GLboolean ARB_multitexture; + GLboolean ARB_occlusion_query; + GLboolean ARB_point_sprite; + GLboolean ARB_shader_objects; + GLboolean ARB_shading_language_100; + GLboolean ARB_shadow; + 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_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_range_elements; + GLboolean EXT_framebuffer_object; + GLboolean EXT_fog_coord; + GLboolean EXT_histogram; + GLboolean EXT_multi_draw_arrays; + GLboolean EXT_paletted_texture; + GLboolean EXT_packed_pixels; + GLboolean EXT_pixel_buffer_object; + GLboolean EXT_point_parameters; + GLboolean EXT_polygon_offset; + 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_vertex_array; + GLboolean EXT_vertex_array_set; + /* vendor extensions */ + GLboolean APPLE_client_storage; + GLboolean APPLE_packed_pixels; + GLboolean ATI_texture_mirror_once; + GLboolean ATI_texture_env_combine3; + GLboolean ATI_fragment_shader; + GLboolean HP_occlusion_test; + GLboolean IBM_rasterpos_clip; + GLboolean IBM_multimode_draw_arrays; + GLboolean MESA_pack_invert; + GLboolean MESA_packed_depth_stencil; + GLboolean MESA_program_debug; + GLboolean MESA_resize_buffers; + GLboolean MESA_ycbcr_texture; + GLboolean NV_blend_square; + GLboolean NV_fragment_program; + GLboolean NV_light_max_exponent; + GLboolean NV_point_sprite; + GLboolean NV_texgen_reflection; + 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_pixel_texture; + GLboolean SGIS_texture_edge_clamp; + GLboolean SGIS_texture_lod; + GLboolean SGIX_depth_texture; + GLboolean SGIX_pixel_texture; + GLboolean SGIX_shadow; + GLboolean SGIX_shadow_ambient; /* or GL_ARB_shadow_ambient */ + GLboolean TDFX_texture_compression_FXT1; + GLboolean S3_s3tc; + /*@}*/ + /* The extension string */ + const GLubyte *String; +}; + + +/** + * A stack of matrices (projection, modelview, color, texture, etc). + */ +struct 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 /* extra */ + + +/** 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_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_SIX +#define _NEW_ARRAY_EDGEFLAG VERT_BIT_SEVEN +#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 0x10000 /* 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 +/*@}*/ + + +#define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \ + _NEW_TEXTURE | \ + _NEW_POINT | \ + _NEW_MODELVIEW) + +#define _MESA_NEW_NEED_NORMALS (_NEW_LIGHT | \ + _NEW_TEXTURE) + +#define _IMAGE_NEW_TRANSFER_STATE (_NEW_PIXEL | _NEW_COLOR_MATRIX) + + + + +/* + * Forward declaration of display list data types: + */ +union node; +typedef union node Node; + + +/* 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; + /*@}*/ +}; + +/* 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 MESA_DLIST_DANGLING_REFS 0x1 + +/* Provide a location where information about a display list can be + * collected. Could be extended with driverPrivate structures, + * etc. in the future. + */ +struct mesa_display_list +{ + Node *node; + GLuint id; + GLuint flags; +}; + + +/** + * State used during display list compilation and execution. + */ +struct mesa_list_state +{ + struct mesa_display_list *CallStack[MAX_LIST_NESTING]; + GLuint CallDepth; /**< Current recursion calling depth */ + + struct mesa_display_list *CurrentList; + Node *CurrentListPtr; /**< Head of list being compiled */ + GLuint CurrentListNum; /**< Number of the list being compiled */ + 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; +}; + + +/** + * 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 +{ + /** + * \name OS related interfaces. + * + * These \b must be the first members of this structure, because they are + * exposed to the outside world (i.e. GLX extension). + */ + /*@{*/ + __GLimports imports; + __GLexports exports; + /*@}*/ + + /** 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 */ + void *DriverMgrCtx; /**< Points to device driver manager (optional)*/ + + /** Core/Driver constants */ + struct gl_constants Const; + + /** \name The various 4x4 matrix stacks */ + /*@{*/ + struct matrix_stack ModelviewMatrixStack; + struct matrix_stack ProjectionMatrixStack; + struct matrix_stack ColorMatrixStack; + struct matrix_stack TextureMatrixStack[MAX_TEXTURE_COORD_UNITS]; + struct matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES]; + struct matrix_stack *CurrentStack; /**< Points to one of the above stacks */ + /*@}*/ + + /** Combined modelview and projection matrix */ + GLmatrix _ModelProjectMatrix; + + /** \name Display lists */ + struct mesa_list_state ListState; + + GLboolean ExecuteFlag; /**< Execute GL commands? */ + GLboolean CompileFlag; /**< Compile GL commands into display list? */ + + /** Extensions */ + struct gl_extensions Extensions; + + /** \name Renderer attribute stack */ + /*@{*/ + 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; /**< Accumulation buffer attributes */ + struct gl_colorbuffer_attrib Color; /**< Color buffers 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_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; /**< Pre-convolution */ + struct gl_color_table ProxyColorTable; /**< Pre-convolution */ + struct gl_color_table PostConvolutionColorTable; + struct gl_color_table ProxyPostConvolutionColorTable; + struct gl_color_table PostColorMatrixColorTable; + struct gl_color_table ProxyPostColorMatrixColorTable; + + struct gl_program_state Program; /**< for vertex or fragment progs */ + struct gl_vertex_program_state VertexProgram; /**< GL_NV_vertex_program */ + struct gl_fragment_program_state FragmentProgram; /**< GL_NV_fragment_program */ + struct gl_ati_fragment_shader_state ATIFragmentShader; /**< GL_ATI_fragment_shader */ + + struct fragment_program *_TexEnvProgram; /**< Texture state as fragment program */ + struct vertex_program *_TnlProgram; /**< Fixed func TNL state as vertex program */ + + GLboolean _MaintainTexEnvProgram; + GLboolean _MaintainTnlProgram; + + struct gl_occlusion_state Occlusion; /**< GL_ARB_occlusion_query */ + + struct gl_shader_objects_state ShaderObjects; /* GL_ARB_shader_objects */ + /*@}*/ + +#if FEATURE_EXT_framebuffer_object + /*struct gl_framebuffer *CurrentFramebuffer;*/ + struct gl_renderbuffer *CurrentRenderbuffer; +#endif + + GLenum ErrorValue; /**< Last error code */ + GLenum RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */ + GLuint NewState; /**< bitwise-or of _NEW_* flags */ + + /** \name Derived state */ + /*@{*/ + GLuint _TriangleCaps; /**< bitwise-or of DD_* flags */ + GLuint _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */ + GLfloat _EyeZDir[3]; + GLfloat _ModelViewInvScale; + GLuint _NeedEyeCoords; + GLuint _ForceEyeCoords; + GLboolean _RotateMode; + GLenum _CurrentProgram; /* currently executing program */ + + 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 */ + + + GLboolean OcclusionResult; /**< for GL_HP_occlusion_test */ + GLboolean OcclusionResultSaved; /**< for GL_HP_occlusion_test */ + GLuint _Facing; /**< This is a hack for 2-sided stencil test. + * + * We don't have a better way to communicate this value from + * swrast_setup to swrast. */ + + /** \name Color clamping (tentative part of GL_ARB_color_clamp_control) */ + /*@{*/ + GLboolean ClampFragmentColors; + GLboolean ClampVertexColors; + /*@}*/ + + /** \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; + + /** 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; + void *acache_context; + void *aelt_context; + /*@}*/ +}; + + +/** The string names for GL_POINT, GL_LINE_LOOP, etc */ +extern const char *_mesa_prim_name[GL_POLYGON+4]; + + +#ifdef MESA_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 + + +enum _verbose +{ + VERBOSE_VARRAY = 0x0001, + VERBOSE_TEXTURE = 0x0002, + VERBOSE_IMMEDIATE = 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 +}; + + +enum _debug +{ + DEBUG_ALWAYS_FLUSH = 0x1 +}; + + + +#define Elements(x) sizeof(x)/sizeof(*(x)) + + +#endif /* TYPES_H */ |