/* * Mesa 3-D graphics library * * 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 * THE AUTHORS OR COPYRIGHT HOLDERS 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 /* uint32_t */ #include #include "c11/threads.h" #include "util/glheader.h" #include "main/glthread.h" #include "main/consts_exts.h" #include "main/shader_types.h" #include "main/glconfig.h" #include "main/menums.h" #include "main/config.h" #include "glapi/glapi.h" #include "math/m_matrix.h" /* GLmatrix */ #include "compiler/shader_enums.h" #include "compiler/shader_info.h" #include "main/formats.h" /* MESA_FORMAT_COUNT */ #include "compiler/glsl/list.h" #include "compiler/glsl/ir_uniform.h" #include "util/u_idalloc.h" #include "util/simple_mtx.h" #include "util/u_dynarray.h" #include "vbo/vbo.h" #include "pipe/p_state.h" #include "frontend/api.h" #ifdef __cplusplus extern "C" { #endif #define GET_COLORMASK_BIT(mask, buf, chan) (((mask) >> (4 * (buf) + (chan))) & 0x1) #define GET_COLORMASK(mask, buf) (((mask) >> (4 * (buf))) & 0xf) /** * \name Some forward type declarations */ /*@{*/ struct gl_attrib_node; struct gl_list_extensions; struct gl_meta_state; struct gl_program_cache; struct gl_texture_object; struct gl_debug_state; struct gl_context; struct st_context; struct gl_uniform_storage; struct prog_instruction; struct gl_program_parameter_list; struct gl_shader_spirv_data; struct set; struct shader_includes; /*@}*/ /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */ #define PRIM_MAX GL_PATCHES #define PRIM_OUTSIDE_BEGIN_END (PRIM_MAX + 1) #define PRIM_UNKNOWN (PRIM_MAX + 2) /** * 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_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_COLOR0 | \ BUFFER_BIT_COLOR1 | \ BUFFER_BIT_COLOR2 | \ BUFFER_BIT_COLOR3 | \ BUFFER_BIT_COLOR4 | \ BUFFER_BIT_COLOR5 | \ BUFFER_BIT_COLOR6 | \ BUFFER_BIT_COLOR7) /* Mask of bits for depth+stencil buffers */ #define BUFFER_BITS_DEPTH_STENCIL (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL) #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) /*@}*/ /** * Material state. */ struct gl_material { GLfloat Attrib[MAT_ATTRIB_MAX][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) /*@}*/ /** * Light source state. */ struct gl_light { GLboolean Enabled; /**< On/off flag */ /** * \name Derived fields */ /*@{*/ GLbitfield _Flags; /**< Mask of LIGHT_x bits defined above */ 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 _MatAmbient[2][3]; /**< material ambient * light ambient */ GLfloat _MatDiffuse[2][3]; /**< material diffuse * light diffuse */ GLfloat _MatSpecular[2][3]; /**< material spec * light specular */ /*@}*/ }; /** * 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? */ GLenum16 ColorControl; /**< either GL_SINGLE_COLOR or GL_SEPARATE_SPECULAR_COLOR */ }; /** * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT) */ struct gl_accum_attrib { GLfloat ClearColor[4]; /**< Accumulation buffer clear color */ }; /** * Used for storing clear color, texture border color, etc. * The float values are typically unclamped. */ union gl_color_union { GLfloat f[4]; GLint i[4]; GLuint ui[4]; }; /** * Color buffer attribute group (GL_COLOR_BUFFER_BIT). */ struct gl_colorbuffer_attrib { GLuint ClearIndex; /**< Index for glClear */ union gl_color_union ClearColor; /**< Color for glClear, unclamped */ GLuint IndexMask; /**< Color index write mask */ /** 4 colormask bits per draw buffer, max 8 draw buffers. 4*8 = 32 bits */ GLbitfield ColorMask; GLenum16 DrawBuffer[MAX_DRAW_BUFFERS]; /**< Which buffer to draw into */ /** * \name alpha testing */ /*@{*/ GLboolean AlphaEnabled; /**< Alpha test enabled flag */ GLenum16 AlphaFunc; /**< Alpha test function */ GLfloat AlphaRefUnclamped; GLclampf AlphaRef; /**< Alpha reference value */ /*@}*/ /** * \name Blending */ /*@{*/ GLbitfield BlendEnabled; /**< Per-buffer blend enable flags */ /* NOTE: this does _not_ depend on fragment clamping or any other clamping * control, only on the fixed-pointness of the render target. * The query does however depend on fragment color clamping. */ GLfloat BlendColorUnclamped[4]; /**< Blending color */ GLfloat BlendColor[4]; /**< Blending color */ struct { GLenum16 SrcRGB; /**< RGB blend source term */ GLenum16 DstRGB; /**< RGB blend dest term */ GLenum16 SrcA; /**< Alpha blend source term */ GLenum16 DstA; /**< Alpha blend dest term */ GLenum16 EquationRGB; /**< GL_ADD, GL_SUBTRACT, etc. */ GLenum16 EquationA; /**< GL_ADD, GL_SUBTRACT, etc. */ } Blend[MAX_DRAW_BUFFERS]; /** Bitfield of color buffers with enabled dual source blending. */ GLbitfield _BlendUsesDualSrc; /** Are the blend func terms currently different for each buffer/target? */ GLboolean _BlendFuncPerBuffer; /** Are the blend equations currently different for each buffer/target? */ GLboolean _BlendEquationPerBuffer; /** * Which advanced blending mode is in use (or BLEND_NONE). * * KHR_blend_equation_advanced only allows advanced blending with a single * draw buffer, and NVX_blend_equation_advanced_multi_draw_buffer still * requires all draw buffers to match, so we only need a single value. */ enum gl_advanced_blend_mode _AdvancedBlendMode; /** Coherency requested via glEnable(GL_BLEND_ADVANCED_COHERENT_KHR)? */ bool BlendCoherent; /*@}*/ /** * \name Logic op */ /*@{*/ GLboolean IndexLogicOpEnabled; /**< Color index logic op enabled flag */ GLboolean ColorLogicOpEnabled; /**< RGBA logic op enabled flag */ GLenum16 LogicOp; /**< Logic operator */ enum gl_logicop_mode _LogicOp; /*@}*/ GLboolean DitherFlag; /**< Dither enable flag */ GLboolean _ClampFragmentColor; /** < with GL_FIXED_ONLY_ARB resolved */ GLenum16 ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */ GLenum16 ClampReadColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */ GLboolean sRGBEnabled; /**< Framebuffer sRGB blending/updating requested */ }; /** * Vertex format to describe a vertex element. */ struct gl_vertex_format { union gl_vertex_format_user User; enum pipe_format _PipeFormat:16; /**< pipe_format for Gallium */ GLushort _ElementSize; /**< Size of each element in bytes */ }; /** * Current attribute group (GL_CURRENT_BIT). */ struct gl_current_attrib { /** * \name Current vertex attributes (color, texcoords, etc). * \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. * \note We need double storage for 64-bit vertex attributes */ GLfloat Attrib[VERT_ATTRIB_MAX][4*2]; /** * \name Current raster position attributes (always up to date after a * glRasterPos call). */ GLfloat RasterPos[4]; GLfloat RasterDistance; GLfloat RasterColor[4]; GLfloat RasterSecondaryColor[4]; GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4]; GLboolean RasterPosValid; }; /** * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT). */ struct gl_depthbuffer_attrib { GLenum16 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 */ GLclampd 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 Map2Color4; GLboolean Map2Index; GLboolean Map2Normal; GLboolean Map2TextureCoord1; GLboolean Map2TextureCoord2; GLboolean Map2TextureCoord3; GLboolean Map2TextureCoord4; GLboolean Map2Vertex3; GLboolean Map2Vertex4; 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; /*@}*/ }; /** * Compressed fog mode. */ enum gl_fog_mode { FOG_NONE, FOG_LINEAR, FOG_EXP, FOG_EXP2, }; /** * Fog attribute group (GL_FOG_BIT). */ struct gl_fog_attrib { GLboolean Enabled; /**< Fog enabled flag */ GLboolean ColorSumEnabled; uint8_t _PackedMode; /**< Fog mode as 2 bits */ uint8_t _PackedEnabledMode; /**< Masked CompressedMode */ GLfloat ColorUnclamped[4]; /**< Fog color */ 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 */ GLenum16 Mode; /**< Fog mode */ GLenum16 FogCoordinateSource;/**< GL_EXT_fog_coord */ GLenum16 FogDistanceMode; /**< GL_NV_fog_distance */ }; /** * Hint attribute group (GL_HINT_BIT). * * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE. */ struct gl_hint_attrib { GLenum16 PerspectiveCorrection; GLenum16 PointSmooth; GLenum16 LineSmooth; GLenum16 PolygonSmooth; GLenum16 Fog; GLenum16 TextureCompression; /**< GL_ARB_texture_compression */ GLenum16 GenerateMipmap; /**< GL_SGIS_generate_mipmap */ GLenum16 FragmentShaderDerivative; /**< GL_ARB_fragment_shader */ GLuint MaxShaderCompilerThreads; /**< GL_ARB_parallel_shader_compile */ }; struct gl_light_uniforms { /* These must be in the same order as the STATE_* enums, * which should also match the order of gl_LightSource members. */ GLfloat Ambient[4]; /**< STATE_AMBIENT */ GLfloat Diffuse[4]; /**< STATE_DIFFUSE */ GLfloat Specular[4]; /**< STATE_SPECULAR */ GLfloat EyePosition[4]; /**< STATE_POSITION in eye coordinates */ GLfloat _HalfVector[4]; /**< STATE_HALF_VECTOR */ GLfloat SpotDirection[3]; /**< STATE_SPOT_DIRECTION in eye coordinates */ GLfloat _CosCutoff; /**< = MAX(0, cos(SpotCutoff)) */ GLfloat ConstantAttenuation; /**< STATE_ATTENUATION */ GLfloat LinearAttenuation; GLfloat QuadraticAttenuation; GLfloat SpotExponent; GLfloat SpotCutoff; /**< STATE_SPOT_CUTOFF in degrees */ }; /** * Lighting attribute group (GL_LIGHT_BIT). */ struct gl_light_attrib { /* gl_LightSource uniforms */ union { struct gl_light_uniforms LightSource[MAX_LIGHTS]; GLfloat LightSourceData[(sizeof(struct gl_light_uniforms) / 4) * MAX_LIGHTS]; }; struct gl_light Light[MAX_LIGHTS]; /**< Array of light sources */ struct gl_lightmodel Model; /**< Lighting model */ /** * Front and back material values. * Note: must call FLUSH_VERTICES() before using. */ struct gl_material Material; GLboolean Enabled; /**< Lighting enabled flag */ GLboolean ColorMaterialEnabled; GLenum16 ShadeModel; /**< GL_FLAT or GL_SMOOTH */ GLenum16 ProvokingVertex; /**< GL_EXT_provoking_vertex */ GLenum16 ColorMaterialFace; /**< GL_FRONT, BACK or FRONT_AND_BACK */ GLenum16 ColorMaterialMode; /**< GL_AMBIENT, GL_DIFFUSE, etc */ GLbitfield _ColorMaterialBitmask; /**< bitmask formed from Face and Mode */ GLboolean _ClampVertexColor; GLenum16 ClampVertexColor; /**< GL_TRUE, GL_FALSE, GL_FIXED_ONLY */ /** * Derived state for optimizations: */ /*@{*/ GLbitfield _EnabledLights; /**< bitmask containing enabled lights */ GLboolean _NeedEyeCoords; GLboolean _NeedVertices; /**< Use fast shader? */ 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 SampleAlphaToCoverage; GLboolean SampleAlphaToOne; GLboolean SampleCoverage; GLboolean SampleCoverageInvert; GLboolean SampleShading; /* ARB_texture_multisample / GL3.2 additions */ GLboolean SampleMask; GLfloat SampleCoverageValue; /**< In range [0, 1] */ GLfloat MinSampleShadingValue; /**< In range [0, 1] */ /** The GL spec defines this as an array but >32x MSAA is madness */ GLbitfield SampleMaskValue; /* NV_alpha_to_coverage_dither_control */ GLenum SampleAlphaToCoverageDitherControl; }; /** * A pixelmap (see glPixelMap) */ struct gl_pixelmap { GLint Size; GLfloat Map[MAX_PIXEL_MAP_TABLE]; }; /** * 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 { GLenum16 ReadBuffer; /**< source buffer for glRead/CopyPixels() */ /*--- Begin Pixel Transfer State ---*/ /* Fields are in the order in which they're applied... */ /** Scale & Bias (index shift, offset) */ /*@{*/ GLfloat RedBias, RedScale; GLfloat GreenBias, GreenScale; GLfloat BlueBias, BlueScale; GLfloat AlphaBias, AlphaScale; GLfloat DepthBias, DepthScale; GLint IndexShift, IndexOffset; /*@}*/ /* Pixel Maps */ /* Note: actual pixel maps are not part of this attrib group */ GLboolean MapColorFlag; GLboolean MapStencilFlag; /*--- End Pixel Transfer State ---*/ /** glPixelZoom */ GLfloat ZoomX, ZoomY; }; /** * Point attribute group (GL_POINT_BIT). */ struct gl_point_attrib { 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 SmoothFlag; /**< True if GL_POINT_SMOOTH is enabled */ GLboolean _Attenuated; /**< True if Params != [1, 0, 0] */ GLboolean PointSprite; /**< GL_NV/ARB_point_sprite */ GLbitfield CoordReplace; /**< GL_ARB_point_sprite*/ GLenum16 SpriteOrigin; /**< GL_ARB_point_sprite */ }; /** * Polygon attribute group (GL_POLYGON_BIT). */ struct gl_polygon_attrib { GLenum16 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 CullFlag; /**< Culling on/off flag */ GLboolean SmoothFlag; /**< True if GL_POLYGON_SMOOTH is enabled */ GLboolean StippleFlag; /**< True if GL_POLYGON_STIPPLE is enabled */ GLenum16 CullFaceMode; /**< Culling mode GL_FRONT or GL_BACK */ GLfloat OffsetFactor; /**< Polygon offset factor, from user */ GLfloat OffsetUnits; /**< Polygon offset units, from user */ GLfloat OffsetClamp; /**< Polygon offset clamp, 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_rect { GLint X, Y; /**< Lower left corner of box */ GLsizei Width, Height; /**< Size of box */ }; struct gl_scissor_attrib { GLbitfield EnableFlags; /**< Scissor test enabled? */ struct gl_scissor_rect ScissorArray[MAX_VIEWPORTS]; GLint NumWindowRects; /**< Count of enabled window rectangles */ GLenum16 WindowRectMode; /**< Whether to include or exclude the rects */ struct gl_scissor_rect WindowRects[MAX_WINDOW_RECTANGLES]; }; /** * 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) */ GLubyte _BackFace; /**< Current back stencil state (1 or 2) */ GLenum16 Function[3]; /**< Stencil function */ GLenum16 FailFunc[3]; /**< Fail function */ GLenum16 ZPassFunc[3]; /**< Depth buffer pass function */ GLenum16 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 */ }; /** * Bit flags for each type of texture object */ /*@{*/ #define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX) #define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX) #define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX) #define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX) #define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX) #define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX) #define TEXTURE_EXTERNAL_BIT (1 << TEXTURE_EXTERNAL_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) /*@}*/ /** * Texture image state. Drivers will typically create a subclass of this * with extra fields for memory buffers, etc. */ struct gl_texture_image { GLint InternalFormat; /**< Internal format as given by the user */ GLenum16 _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_ALPHA, * GL_LUMINANCE, GL_LUMINANCE_ALPHA, * GL_INTENSITY, GL_DEPTH_COMPONENT or * GL_DEPTH_STENCIL_EXT only. Used for * choosing TexEnv arithmetic. */ mesa_format TexFormat; /**< The actual texture memory format */ GLuint Border; /**< 0 or 1 */ GLuint Width; GLuint Height; GLuint Depth; GLuint Width2; /**< = Width - 2*Border */ GLuint Height2; /**< = Height - 2*Border */ GLuint Depth2; /**< = Depth - 2*Border */ GLuint MaxNumLevels; /**< = maximum possible number of mipmap levels, computed from the dimensions */ struct gl_texture_object *TexObject; /**< Pointer back to parent object */ GLuint Level; /**< Which mipmap level am I? */ /** Cube map face: index into gl_texture_object::Image[] array */ GLuint Face; unsigned FormatSwizzle; unsigned FormatSwizzleGLSL130; //for depth formats /** GL_ARB_texture_multisample */ GLuint NumSamples; /**< Sample count, or 0 for non-multisample */ GLboolean FixedSampleLocations; /**< Same sample locations for all pixels? */ /* If stImage->pt != NULL, image data is stored here. * Else there is no image data. */ struct pipe_resource *pt; /* List of transfers, allocated on demand. * transfer[layer] is a mapping for that layer. */ struct st_texture_image_transfer *transfer; unsigned num_transfers; /* For compressed images unsupported by the driver. Keep track of * the original data. This is necessary for mapping/unmapping, * as well as image copies. */ struct st_compressed_data* compressed_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; /** * Sampler state saved and restore by glPush/PopAttrib. * * Don't put fields here that glPushAttrib shouldn't save. * E.g. no GLES fields because GLES doesn't have glPushAttrib. */ struct gl_sampler_attrib { GLenum16 WrapS; /**< S-axis texture image wrap mode */ GLenum16 WrapT; /**< T-axis texture image wrap mode */ GLenum16 WrapR; /**< R-axis texture image wrap mode */ GLenum16 MinFilter; /**< minification filter */ GLenum16 MagFilter; /**< magnification filter */ GLenum16 sRGBDecode; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */ GLfloat MinLod; /**< min lambda, OpenGL 1.2 */ GLfloat MaxLod; /**< max lambda, OpenGL 1.2 */ GLfloat LodBias; /**< OpenGL 1.4 */ GLfloat MaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */ GLenum16 CompareMode; /**< GL_ARB_shadow */ GLenum16 CompareFunc; /**< GL_ARB_shadow */ GLboolean CubeMapSeamless; /**< GL_AMD_seamless_cubemap_per_texture */ GLboolean IsBorderColorNonZero; /**< Does the border color have any effect? */ GLenum16 ReductionMode; /**< GL_EXT_texture_filter_minmax */ struct pipe_sampler_state state; /**< Gallium representation */ }; /** * Texture state saved and restored by glPush/PopAttrib. * * Don't put fields here that glPushAttrib shouldn't save. * E.g. no GLES fields because GLES doesn't have glPushAttrib. */ struct gl_texture_object_attrib { GLfloat Priority; /**< in [0,1] */ GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */ GLint MaxLevel; /**< max mipmap level (max=1000), OpenGL 1.2 */ GLenum Swizzle[4]; /**< GL_EXT_texture_swizzle */ GLushort _Swizzle; /**< same as Swizzle, but SWIZZLE_* format */ GLenum16 DepthMode; /**< GL_ARB_depth_texture */ GLenum16 ImageFormatCompatibilityType; /**< GL_ARB_shader_image_load_store */ GLushort MinLayer; /**< GL_ARB_texture_view */ GLushort NumLayers; /**< GL_ARB_texture_view */ GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */ GLbyte ImmutableLevels; /**< ES 3.0 / ARB_texture_view */ GLubyte MinLevel; /**< GL_ARB_texture_view */ GLubyte NumLevels; /**< GL_ARB_texture_view */ }; typedef enum { WRAP_S = (1<<0), WRAP_T = (1<<1), WRAP_R = (1<<2), } gl_sampler_wrap; /** * Sampler object state. These objects are new with GL_ARB_sampler_objects * and OpenGL 3.3. Legacy texture objects also contain a sampler object. */ struct gl_sampler_object { GLuint Name; GLchar *Label; /**< GL_KHR_debug */ GLint RefCount; struct gl_sampler_attrib Attrib; /**< State saved by glPushAttrib */ uint8_t glclamp_mask; /**< mask of GL_CLAMP wraps active */ /** GL_ARB_bindless_texture */ bool HandleAllocated; struct util_dynarray Handles; }; /** * YUV color space that should be used to sample textures backed by YUV * images. */ enum gl_texture_yuv_color_space { GL_TEXTURE_YUV_COLOR_SPACE_REC601, GL_TEXTURE_YUV_COLOR_SPACE_REC709, GL_TEXTURE_YUV_COLOR_SPACE_REC2020, }; /** * Texture object state. Contains the array of mipmap images, border color, * wrap modes, filter modes, and shadow/texcompare state. */ struct gl_texture_object { GLint RefCount; /**< reference count */ GLuint Name; /**< the user-visible texture object ID */ GLenum16 Target; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */ GLchar *Label; /**< GL_KHR_debug */ struct gl_sampler_object Sampler; struct gl_texture_object_attrib Attrib; /**< State saved by glPushAttrib */ gl_texture_index TargetIndex; /**< The gl_texture_unit::CurrentTex index. Only valid when Target is valid. */ GLbyte _MaxLevel; /**< actual max mipmap level (q in the spec) */ GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - p in spec) */ GLint CropRect[4]; /**< GL_OES_draw_texture */ GLboolean _BaseComplete; /**< Is the base texture level valid? */ GLboolean _MipmapComplete; /**< Is the whole mipmap valid? */ GLboolean _IsIntegerFormat; /**< Does the texture store integer values? */ GLboolean _RenderToTexture; /**< Any rendering to this texture? */ GLboolean Immutable; /**< GL_ARB_texture_storage */ GLboolean _IsFloat; /**< GL_OES_float_texture */ GLboolean _IsHalfFloat; /**< GL_OES_half_float_texture */ bool HandleAllocated; /**< GL_ARB_bindless_texture */ /* This should not be restored by glPopAttrib: */ bool StencilSampling; /**< Should we sample stencil instead of depth? */ /** GL_OES_EGL_image_external */ GLboolean External; GLubyte RequiredTextureImageUnits; GLboolean NullTexture; /**< this texture is incomplete and should be passed to the driver as NULL */ /** GL_EXT_memory_object */ GLenum16 TextureTiling; /** GL_ARB_texture_buffer_object */ GLenum16 BufferObjectFormat; /** Equivalent Mesa format for BufferObjectFormat. */ mesa_format _BufferObjectFormat; /* TODO: BufferObject->Name should be restored by glPopAttrib(GL_TEXTURE_BIT); */ struct gl_buffer_object *BufferObject; /** GL_ARB_texture_buffer_range */ GLintptr BufferOffset; GLsizeiptr BufferSize; /**< if this is -1, use BufferObject->Size instead */ /** Actual texture images, indexed by [cube face] and [mipmap level] */ struct gl_texture_image *Image[MAX_FACES][MAX_TEXTURE_LEVELS]; /** GL_ARB_bindless_texture */ struct util_dynarray SamplerHandles; struct util_dynarray ImageHandles; /** GL_ARB_sparse_texture */ GLboolean IsSparse; GLint VirtualPageSizeIndex; GLint NumSparseLevels; /** GL_EXT_texture_storage_compression */ GLint CompressionRate; /**< Fixed-rate compression bitrate */ /** GL_EXT_texture_compression_astc_decode_mode */ GLenum16 AstcDecodePrecision; /**< ASTC decoding precision */ /* The texture must include at levels [0..lastLevel] once validated: */ GLuint lastLevel; unsigned Swizzle; unsigned SwizzleGLSL130; unsigned int validated_first_level; unsigned int validated_last_level; /* On validation any active images held in main memory or in other * textures will be copied to this texture and the old storage freed. */ struct pipe_resource *pt; /* Protect modifications of the sampler_views array */ simple_mtx_t validate_mutex; /* Container of sampler views (one per context) attached to this texture * object. Created lazily on first binding in context. * * Purely read-only accesses to the current context's own sampler view * require no locking. Another thread may simultaneously replace the * container object in order to grow the array, but the old container will * be kept alive. * * Writing to the container (even for modifying the current context's own * sampler view) always requires taking the validate_mutex to protect against * concurrent container switches. * * NULL'ing another context's sampler view is allowed only while * implementing an API call that modifies the texture: an application which * calls those while simultaneously reading the texture in another context * invokes undefined behavior. (TODO: a dubious violation of this rule is * st_finalize_texture, which is a lazy operation that corresponds to a * texture modification.) */ struct st_sampler_views *sampler_views; /* Old sampler views container objects that have not been freed yet because * other threads/contexts may still be reading from them. */ struct st_sampler_views *sampler_views_old; /* True if this texture comes from the window system. Such a texture * cannot be reallocated and the format can only be changed with a sampler * view or a surface. */ GLboolean surface_based; /* If surface_based is true, this format should be used for all sampler * views and surfaces instead of pt->format. */ enum pipe_format surface_format; /* If surface_based is true and surface_format is a YUV format, these * settings should be used to convert from YUV to RGB. */ enum gl_texture_yuv_color_space yuv_color_space; bool yuv_full_range; /* When non-negative, samplers should use this level instead of the level * range specified by the GL state. * * This is used for EGL images, which may correspond to a single level out * of an imported pipe_resources with multiple mip levels. */ int level_override; /* When non-negative, samplers should use this layer instead of the one * specified by the GL state. * * This is used for EGL images and VDPAU interop, where imported * pipe_resources may be cube, 3D, or array textures (containing layers * with different fields in the case of VDPAU) even though the GL state * describes one non-array texture per field. */ int layer_override; /** * Set when the texture images of this texture object might not all be in * the pipe_resource *pt above. */ bool needs_validation; }; /** 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 { GLenum16 ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ GLenum16 ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */ GLenum16 SourceRGB[MAX_COMBINER_TERMS]; GLenum16 SourceA[MAX_COMBINER_TERMS]; /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */ GLenum16 OperandRGB[MAX_COMBINER_TERMS]; GLenum16 OperandA[MAX_COMBINER_TERMS]; GLubyte ScaleShiftRGB; /**< 0, 1 or 2 */ GLubyte ScaleShiftA; /**< 0, 1 or 2 */ GLubyte _NumArgsRGB; /**< Number of inputs used for the RGB combiner */ GLubyte _NumArgsA; /**< Number of inputs used for the A combiner */ }; /** Compressed TexEnv effective Combine mode */ enum gl_tex_env_mode { TEXENV_MODE_REPLACE, /* r = a0 */ TEXENV_MODE_MODULATE, /* r = a0 * a1 */ TEXENV_MODE_ADD, /* r = a0 + a1 */ TEXENV_MODE_ADD_SIGNED, /* r = a0 + a1 - 0.5 */ TEXENV_MODE_INTERPOLATE, /* r = a0 * a2 + a1 * (1 - a2) */ TEXENV_MODE_SUBTRACT, /* r = a0 - a1 */ TEXENV_MODE_DOT3_RGB, /* r = a0 . a1 */ TEXENV_MODE_DOT3_RGB_EXT, /* r = a0 . a1 */ TEXENV_MODE_DOT3_RGBA, /* r = a0 . a1 */ TEXENV_MODE_DOT3_RGBA_EXT, /* r = a0 . a1 */ TEXENV_MODE_MODULATE_ADD_ATI, /* r = a0 * a2 + a1 */ TEXENV_MODE_MODULATE_SIGNED_ADD_ATI, /* r = a0 * a2 + a1 - 0.5 */ TEXENV_MODE_MODULATE_SUBTRACT_ATI, /* r = a0 * a2 - a1 */ TEXENV_MODE_ADD_PRODUCTS_NV, /* r = a0 * a1 + a2 * a3 */ TEXENV_MODE_ADD_PRODUCTS_SIGNED_NV, /* r = a0 * a1 + a2 * a3 - 0.5 */ }; /** Compressed TexEnv Combine source */ enum gl_tex_env_source { TEXENV_SRC_TEXTURE0, TEXENV_SRC_TEXTURE1, TEXENV_SRC_TEXTURE2, TEXENV_SRC_TEXTURE3, TEXENV_SRC_TEXTURE4, TEXENV_SRC_TEXTURE5, TEXENV_SRC_TEXTURE6, TEXENV_SRC_TEXTURE7, TEXENV_SRC_TEXTURE, TEXENV_SRC_PREVIOUS, TEXENV_SRC_PRIMARY_COLOR, TEXENV_SRC_CONSTANT, TEXENV_SRC_ZERO, TEXENV_SRC_ONE, }; /** Compressed TexEnv Combine operand */ enum gl_tex_env_operand { TEXENV_OPR_COLOR, TEXENV_OPR_ONE_MINUS_COLOR, TEXENV_OPR_ALPHA, TEXENV_OPR_ONE_MINUS_ALPHA, }; /** Compressed TexEnv Combine argument */ struct gl_tex_env_argument { #ifdef __GNUC__ __extension__ uint8_t Source:4; /**< TEXENV_SRC_x */ __extension__ uint8_t Operand:2; /**< TEXENV_OPR_x */ #else uint8_t Source; /**< SRC_x */ uint8_t Operand; /**< OPR_x */ #endif }; /*** * Compressed TexEnv Combine state. */ struct gl_tex_env_combine_packed { uint32_t ModeRGB:4; /**< Effective mode for RGB as 4 bits */ uint32_t ModeA:4; /**< Effective mode for RGB as 4 bits */ uint32_t ScaleShiftRGB:2; /**< 0, 1 or 2 */ uint32_t ScaleShiftA:2; /**< 0, 1 or 2 */ uint32_t NumArgsRGB:3; /**< Number of inputs used for the RGB combiner */ uint32_t NumArgsA:3; /**< Number of inputs used for the A combiner */ /** Source arguments in a packed manner */ struct gl_tex_env_argument ArgsRGB[MAX_COMBINER_TERMS]; struct gl_tex_env_argument ArgsA[MAX_COMBINER_TERMS]; }; /** * TexGenEnabled flags. */ /*@{*/ #define S_BIT 1 #define T_BIT 2 #define R_BIT 4 #define Q_BIT 8 #define STR_BITS (S_BIT | T_BIT | R_BIT) /*@}*/ /** * Bit flag versions of the corresponding GL_ constants. */ /*@{*/ #define TEXGEN_SPHERE_MAP 0x1 #define TEXGEN_OBJ_LINEAR 0x2 #define TEXGEN_EYE_LINEAR 0x4 #define TEXGEN_REFLECTION_MAP_NV 0x8 #define TEXGEN_NORMAL_MAP_NV 0x10 #define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \ TEXGEN_REFLECTION_MAP_NV | \ TEXGEN_NORMAL_MAP_NV) #define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \ TEXGEN_REFLECTION_MAP_NV | \ TEXGEN_NORMAL_MAP_NV | \ TEXGEN_EYE_LINEAR) /*@}*/ /** Tex-gen enabled for texture unit? */ #define ENABLE_TEXGEN(unit) (1 << (unit)) /** Non-identity texture matrix for texture unit? */ #define ENABLE_TEXMAT(unit) (1 << (unit)) /** * Texture coord generation state. */ struct gl_texgen { GLenum16 Mode; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */ GLbitfield8 _ModeBit; /**< TEXGEN_x bit corresponding to Mode */ }; /** * Sampler-related subset of a texture unit, like current texture objects. */ struct gl_texture_unit { GLfloat LodBias; /**< for biasing mipmap levels */ float LodBiasQuantized; /**< to reduce pipe_sampler_state variants */ /** Texture targets that have a non-default texture bound */ GLbitfield _BoundTextures; /** Current sampler object (GL_ARB_sampler_objects) */ struct gl_sampler_object *Sampler; /** 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; }; enum { GEN_S, GEN_T, GEN_R, GEN_Q, NUM_GEN, }; /** * Fixed-function-related subset of a texture unit, like enable flags, * texture environment/function/combiners, and texgen state. */ struct gl_fixedfunc_texture_unit { GLbitfield16 Enabled; /**< bitmask of TEXTURE_*_BIT flags */ GLenum16 EnvMode; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */ GLclampf EnvColor[4]; GLfloat EnvColorUnclamped[4]; struct gl_texgen GenS; struct gl_texgen GenT; struct gl_texgen GenR; struct gl_texgen GenQ; GLfloat EyePlane[NUM_GEN][4]; GLfloat ObjectPlane[NUM_GEN][4]; GLbitfield8 TexGenEnabled; /**< Bitwise-OR of [STRQ]_BIT values */ GLbitfield8 _GenFlags; /**< Bitwise-OR of Gen[STRQ]._ModeBit */ /** * \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; /** Current compressed TexEnv & Combine state */ struct gl_tex_env_combine_packed _CurrentCombinePacked; /** * Currently enabled combiner state. This will point to either * \c Combine or \c _EnvMode. */ struct gl_tex_env_combine_state *_CurrentCombine; }; /** * Texture attribute group (GL_TEXTURE_BIT). */ struct gl_texture_attrib { struct gl_texture_object *ProxyTex[NUM_TEXTURE_TARGETS]; /** GL_ARB_texture_buffer_object */ struct gl_buffer_object *BufferObject; GLuint CurrentUnit; /**< GL_ACTIVE_TEXTURE */ /** Texture coord units/sets used for fragment texturing */ GLbitfield8 _EnabledCoordUnits; /** Texture coord units that have texgen enabled */ GLbitfield8 _TexGenEnabled; /** Texture coord units that have non-identity matrices */ GLbitfield8 _TexMatEnabled; /** Bitwise-OR of all Texture.Unit[i]._GenFlags */ GLbitfield8 _GenFlags; /** Largest index of a texture unit with _Current != NULL. */ GLshort _MaxEnabledTexImageUnit; /** Largest index + 1 of texture units that have had any CurrentTex set. */ GLubyte NumCurrentTexUsed; /** GL_ARB_seamless_cubemap */ GLboolean CubeMapSeamless; GLshort NumSamplersWithClamp; struct gl_texture_unit Unit[MAX_COMBINED_TEXTURE_IMAGE_UNITS]; struct gl_fixedfunc_texture_unit FixedFuncUnit[MAX_TEXTURE_COORD_UNITS]; }; /** * Data structure representing a single clip plane (e.g. one of the elements * of the ctx->Transform.EyeUserPlane or ctx->Transform._ClipUserPlane array). */ typedef GLfloat gl_clip_plane[4]; /** * Transformation attribute group (GL_TRANSFORM_BIT). */ struct gl_transform_attrib { GLenum16 MatrixMode; /**< Matrix mode */ gl_clip_plane EyeUserPlane[MAX_CLIP_PLANES]; /**< User clip planes */ gl_clip_plane _ClipUserPlane[MAX_CLIP_PLANES]; /**< derived */ GLbitfield ClipPlanesEnabled; /**< on/off bitmask */ GLboolean Normalize; /**< Normalize all normals? */ GLboolean RescaleNormals; /**< GL_EXT_rescale_normal */ GLboolean RasterPositionUnclipped; /**< GL_IBM_rasterpos_clip */ GLboolean DepthClampNear; /**< GL_AMD_depth_clamp_separate */ GLboolean DepthClampFar; /**< GL_AMD_depth_clamp_separate */ /** GL_ARB_clip_control */ GLenum16 ClipOrigin; /**< GL_LOWER_LEFT or GL_UPPER_LEFT */ GLenum16 ClipDepthMode;/**< GL_NEGATIVE_ONE_TO_ONE or GL_ZERO_TO_ONE */ }; /** * Viewport attribute group (GL_VIEWPORT_BIT). */ struct gl_viewport_attrib { GLfloat X, Y; /**< position */ GLfloat Width, Height; /**< size */ GLfloat Near, Far; /**< Depth buffer range */ /**< GL_NV_viewport_swizzle */ GLenum16 SwizzleX, SwizzleY, SwizzleZ, SwizzleW; }; /** * Fields describing a mapped buffer range. */ struct gl_buffer_mapping { GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */ GLvoid *Pointer; /**< User-space address of mapping */ GLintptr Offset; /**< Mapped offset */ GLsizeiptr Length; /**< Mapped length */ }; /** * Usages we've seen for a buffer object. */ typedef enum { USAGE_UNIFORM_BUFFER = 0x1, USAGE_TEXTURE_BUFFER = 0x2, USAGE_ATOMIC_COUNTER_BUFFER = 0x4, USAGE_SHADER_STORAGE_BUFFER = 0x8, USAGE_TRANSFORM_FEEDBACK_BUFFER = 0x10, USAGE_PIXEL_PACK_BUFFER = 0x20, USAGE_ARRAY_BUFFER = 0x40, USAGE_DISABLE_MINMAX_CACHE = 0x100, } gl_buffer_usage; /** * GL_ARB_vertex/pixel_buffer_object buffer object */ struct gl_buffer_object { GLint RefCount; GLuint Name; /** * The context that holds a global buffer reference for the lifetime of * the GL buffer ID to skip refcounting for all its private bind points. * Other contexts must still do refcounting as usual. Shared binding points * like TBO within gl_texture_object are always refcounted. * * Implementation details: * - Only the context that creates the buffer ("creating context") skips * refcounting. * - Only buffers represented by an OpenGL buffer ID skip refcounting. * Other internal buffers don't. (glthread requires refcounting for * internal buffers, etc.) * - glDeleteBuffers removes the global buffer reference and increments * RefCount for all private bind points where the deleted buffer is bound * (e.g. unbound VAOs that are not changed by glDeleteBuffers), * effectively enabling refcounting for that context. This is the main * point where the global buffer reference is removed. * - glDeleteBuffers called from a different context adds the buffer into * the ZombieBufferObjects list, which is a way to notify the creating * context that it should remove its global buffer reference to allow * freeing the buffer. The creating context walks over that list in a few * GL functions. * - xxxDestroyContext walks over all buffers and removes its global * reference from those buffers that it created. */ struct gl_context *Ctx; GLint CtxRefCount; /**< Non-atomic references held by Ctx. */ gl_buffer_usage UsageHistory; /**< How has this buffer been used so far? */ struct pipe_resource *buffer; struct gl_context *private_refcount_ctx; /* This mechanism allows passing buffer references to the driver without * using atomics to increase the reference count. * * This private refcount can be decremented without atomics but only one * context (ctx above) can use this counter to be thread-safe. * * This number is atomically added to buffer->reference.count at * initialization. If it's never used, the same number is atomically * subtracted from buffer->reference.count before destruction. If this * number is decremented, we can pass that reference to the driver without * touching reference.count. At buffer destruction we only subtract * the number of references we did not return. This can possibly turn * a million atomic increments into 1 add and 1 subtract atomic op. */ int private_refcount; GLbitfield StorageFlags; /**< GL_MAP_PERSISTENT_BIT, etc. */ /** Memoization of min/max index computations for static index buffers */ unsigned MinMaxCacheHitIndices; unsigned MinMaxCacheMissIndices; struct hash_table *MinMaxCache; simple_mtx_t MinMaxCacheMutex; bool MinMaxCacheDirty:1; bool DeletePending:1; /**< true if buffer object is removed from the hash */ bool Immutable:1; /**< GL_ARB_buffer_storage */ bool HandleAllocated:1; /**< GL_ARB_bindless_texture */ bool GLThreadInternal:1; /**< Created by glthread. */ GLenum16 Usage; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */ GLchar *Label; /**< GL_KHR_debug */ GLsizeiptrARB Size; /**< Size of buffer storage in bytes */ /** Counters used for buffer usage warnings */ GLuint NumSubDataCalls; GLuint NumMapBufferWriteCalls; struct gl_buffer_mapping Mappings[MAP_COUNT]; struct pipe_transfer *transfer[MAP_COUNT]; }; /** * Enum for defining the mapping for the position/generic0 attribute. * * Do not change the order of the values as these are used as * array indices. */ typedef enum { ATTRIBUTE_MAP_MODE_IDENTITY, /**< 1:1 mapping */ ATTRIBUTE_MAP_MODE_POSITION, /**< get position and generic0 from position */ ATTRIBUTE_MAP_MODE_GENERIC0, /**< get position and generic0 from generic0 */ ATTRIBUTE_MAP_MODE_MAX /**< for sizing arrays */ } gl_attribute_map_mode; /** * Attributes to describe a vertex array. * * Contains the size, type, format and normalization flag, * along with the index of a vertex buffer binding point. * * Note that the Stride field corresponds to VERTEX_ATTRIB_ARRAY_STRIDE * and is only present for backwards compatibility reasons. * Rendering always uses VERTEX_BINDING_STRIDE. * The gl*Pointer() functions will set VERTEX_ATTRIB_ARRAY_STRIDE * and VERTEX_BINDING_STRIDE to the same value, while * glBindVertexBuffer() will only set VERTEX_BINDING_STRIDE. */ struct gl_array_attributes { /** Points to client array data. Not used when a VBO is bound */ const GLubyte *Ptr; /** Offset of the first element relative to the binding offset */ GLuint RelativeOffset; /** Vertex format */ struct gl_vertex_format Format; /** Stride as specified with gl*Pointer() */ GLshort Stride; /** Index into gl_vertex_array_object::BufferBinding[] array */ GLubyte BufferBindingIndex; /** * Derived effective buffer binding index * * Index into the gl_vertex_buffer_binding array of the vao. * Similar to BufferBindingIndex, but with the mapping of the * position/generic0 attributes applied and with identical * gl_vertex_buffer_binding entries collapsed to a single * entry within the vao. * * The value is valid past calling _mesa_update_vao_derived_arrays. * Note that _mesa_update_vao_derived_arrays is called when binding * the VAO to Array._DrawVAO. */ GLubyte _EffBufferBindingIndex; /** * Derived effective relative offset. * * Relative offset to the effective buffers offset in * gl_vertex_buffer_binding::_EffOffset. * * The value is valid past calling _mesa_update_vao_derived_arrays. * Note that _mesa_update_vao_derived_arrays is called when binding * the VAO to Array._DrawVAO. */ GLushort _EffRelativeOffset; }; /** * This describes the buffer object used for a vertex array (or * multiple vertex arrays). If BufferObj points to the default/null * buffer object, then the vertex array lives in user memory and not a VBO. */ struct gl_vertex_buffer_binding { GLintptr Offset; /**< User-specified offset */ GLsizei Stride; /**< User-specified stride */ GLuint InstanceDivisor; /**< GL_ARB_instanced_arrays */ struct gl_buffer_object *BufferObj; /**< GL_ARB_vertex_buffer_object */ GLbitfield _BoundArrays; /**< Arrays bound to this binding point */ /** * Derived effective bound arrays. * * The effective binding handles enabled arrays past the * position/generic0 attribute mapping and reduces the refered * gl_vertex_buffer_binding entries to a unique subset. * * The value is valid past calling _mesa_update_vao_derived_arrays. * Note that _mesa_update_vao_derived_arrays is called when binding * the VAO to Array._DrawVAO. */ GLbitfield _EffBoundArrays; /** * Derived offset. * * The absolute offset to that we can collapse some attributes * to this unique effective binding. * For user space array bindings this contains the smallest pointer value * in the bound and interleaved arrays. * For VBO bindings this contains an offset that lets the attributes * _EffRelativeOffset stay positive and in bounds with * Const.MaxVertexAttribRelativeOffset * * The value is valid past calling _mesa_update_vao_derived_arrays. * Note that _mesa_update_vao_derived_arrays is called when binding * the VAO to Array._DrawVAO. */ GLintptr _EffOffset; }; /** * A representation of "Vertex Array Objects" (VAOs) from OpenGL 3.1+ / * the GL_ARB_vertex_array_object extension. */ struct gl_vertex_array_object { /** Name of the VAO as received from glGenVertexArray. */ GLuint Name; GLint RefCount; GLchar *Label; /**< GL_KHR_debug */ /** * Has this array object been bound? */ GLboolean EverBound; /** * Marked to true if the object is shared between contexts and immutable. * Then reference counting is done using atomics and thread safe. * Is used for dlist VAOs. */ bool SharedAndImmutable; /** Vertex attribute arrays */ struct gl_array_attributes VertexAttrib[VERT_ATTRIB_MAX]; /** Vertex buffer bindings */ struct gl_vertex_buffer_binding BufferBinding[VERT_ATTRIB_MAX]; /** Mask indicating which vertex arrays have vertex buffer associated. */ GLbitfield VertexAttribBufferMask; /** Mask indicating which vertex arrays have a non-zero instance divisor. */ GLbitfield NonZeroDivisorMask; /** Mask of VERT_BIT_* values indicating which arrays are enabled */ GLbitfield Enabled; /** * Mask of vertex attributes that have: * VertexAttrib[i].BufferBindingIndex != i. */ GLbitfield NonIdentityBufferAttribMapping; /** * Mask indicating which VertexAttrib and BufferBinding structures have * been changed since the VAO creation. No bit is ever cleared to 0 by * state updates. Setting to the default state doesn't update this. * (e.g. unbinding) Setting the derived state (_* fields) doesn't update * this either. */ GLbitfield NonDefaultStateMask; /** Denotes the way the position/generic0 attribute is mapped */ gl_attribute_map_mode _AttributeMapMode; /** "Enabled" with the position/generic0 attribute aliasing resolved */ GLbitfield _EnabledWithMapMode; /** The index buffer (also known as the element array buffer in OpenGL). */ struct gl_buffer_object *IndexBufferObj; }; /** * Vertex array state */ struct gl_array_attrib { /** Currently bound array object. */ struct gl_vertex_array_object *VAO; /** The default vertex array object */ struct gl_vertex_array_object *DefaultVAO; /** The last VAO accessed by a DSA function */ struct gl_vertex_array_object *LastLookedUpVAO; /** These contents are copied to newly created VAOs. */ struct gl_vertex_array_object DefaultVAOState; /** Array objects (GL_ARB_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 */ /** * \name Primitive restart controls * * Primitive restart is enabled if either \c PrimitiveRestart or * \c PrimitiveRestartFixedIndex is set. */ /*@{*/ GLboolean PrimitiveRestart; GLboolean PrimitiveRestartFixedIndex; GLboolean _PrimitiveRestart[3]; /**< Enable indexed by index_size_shift. */ GLuint RestartIndex; GLuint _RestartIndex[3]; /**< Restart indices indexed by index_size_shift. */ /*@}*/ /* GL_ARB_vertex_buffer_object */ struct gl_buffer_object *ArrayBufferObj; /** * Vertex array object that is used with the currently active draw command. * The _DrawVAO is either set to the currently bound VAO for array type * draws or to internal VAO's set up by the vbo module to execute immediate * mode or display list draws. */ struct gl_vertex_array_object *_DrawVAO; /** * Whether per-vertex edge flags are enabled and should be processed by * the vertex shader. */ bool _PerVertexEdgeFlagsEnabled; /** * Whether all edge flags are false, causing all points and lines generated * by polygon mode to be not drawn. (i.e. culled) */ bool _PolygonModeAlwaysCulls; /** * If gallium vertex buffers are dirty, this flag indicates whether gallium * vertex elements are dirty too. If this is false, GL states corresponding * to vertex elements have not been changed. Thus, this affects what will * happen when ST_NEW_VERTEX_ARRAYS is set. * * The driver should clear this when it's done. */ bool NewVertexElements; /** Legal array datatypes and the API for which they have been computed */ GLbitfield LegalTypesMask; gl_api LegalTypesMaskAPI; }; /** * Feedback buffer state */ struct gl_feedback { GLenum16 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 */ /* HW GL_SELECT */ void *SaveBuffer; /**< array holds multi stack data */ GLuint SaveBufferTail; /**< offset to SaveBuffer's tail */ GLuint SavedStackNum; /**< number of saved stacks */ GLboolean ResultUsed; /**< whether any draw used result buffer */ GLuint ResultOffset; /**< offset into result buffer */ struct gl_buffer_object *Result; /**< result buffer */ }; /** * 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; /*@}*/ /** * \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; /*@}*/ }; /** * Transform feedback object state */ struct gl_transform_feedback_object { GLuint Name; /**< AKA the object ID */ GLint RefCount; GLchar *Label; /**< GL_KHR_debug */ GLboolean Active; /**< Is transform feedback enabled? */ GLboolean Paused; /**< Is transform feedback paused? */ GLboolean EndedAnytime; /**< Has EndTransformFeedback been called at least once? */ GLboolean EverBound; /**< Has this object been bound? */ /** * GLES: if Active is true, remaining number of primitives which can be * rendered without overflow. This is necessary to track because GLES * requires us to generate INVALID_OPERATION if a call to glDrawArrays or * glDrawArraysInstanced would overflow transform feedback buffers. * Undefined if Active is false. * * Not tracked for desktop GL since it's unnecessary. */ unsigned GlesRemainingPrims; /** * The program active when BeginTransformFeedback() was called. * When active and unpaused, this equals ctx->Shader.CurrentProgram[stage], * where stage is the pipeline stage that is the source of data for * transform feedback. */ struct gl_program *program; /** The feedback buffers */ GLuint BufferNames[MAX_FEEDBACK_BUFFERS]; struct gl_buffer_object *Buffers[MAX_FEEDBACK_BUFFERS]; /** Start of feedback data in dest buffer */ GLintptr Offset[MAX_FEEDBACK_BUFFERS]; /** * Max data to put into dest buffer (in bytes). Computed based on * RequestedSize and the actual size of the buffer. */ GLsizeiptr Size[MAX_FEEDBACK_BUFFERS]; /** * Size that was specified when the buffer was bound. If the buffer was * bound with glBindBufferBase() or glBindBufferOffsetEXT(), this value is * zero. */ GLsizeiptr RequestedSize[MAX_FEEDBACK_BUFFERS]; unsigned num_targets; struct pipe_stream_output_target *targets[PIPE_MAX_SO_BUFFERS]; /* This encapsulates the count that can be used as a source for draw_vbo. * It contains stream output targets from the last call of * EndTransformFeedback for each stream. */ struct pipe_stream_output_target *draw_count[MAX_VERTEX_STREAMS]; }; /** * Context state for transform feedback. */ struct gl_transform_feedback_state { GLenum16 Mode; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */ /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */ struct gl_buffer_object *CurrentBuffer; /** The table of all transform feedback objects */ struct _mesa_HashTable Objects; /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */ struct gl_transform_feedback_object *CurrentObject; /** The default xform-fb object (Name==0) */ struct gl_transform_feedback_object *DefaultObject; }; /** * A "performance monitor" as described in AMD_performance_monitor. */ struct gl_perf_monitor_object { GLuint Name; /** True if the monitor is currently active (Begin called but not End). */ GLboolean Active; /** * True if the monitor has ended. * * This is distinct from !Active because it may never have began. */ GLboolean Ended; /** * A list of groups with currently active counters. * * ActiveGroups[g] == n if there are n counters active from group 'g'. */ unsigned *ActiveGroups; /** * An array of bitsets, subscripted by group ID, then indexed by counter ID. * * Checking whether counter 'c' in group 'g' is active can be done via: * * BITSET_TEST(ActiveCounters[g], c) */ GLuint **ActiveCounters; unsigned num_active_counters; struct gl_perf_counter_object { struct pipe_query *query; int id; int group_id; unsigned batch_index; } *active_counters; struct pipe_query *batch_query; union pipe_query_result *batch_result; }; union gl_perf_monitor_counter_value { float f; uint64_t u64; uint32_t u32; }; struct gl_perf_monitor_counter { /** Human readable name for the counter. */ const char *Name; /** * Data type of the counter. Valid values are FLOAT, UNSIGNED_INT, * UNSIGNED_INT64_AMD, and PERCENTAGE_AMD. */ GLenum16 Type; /** Minimum counter value. */ union gl_perf_monitor_counter_value Minimum; /** Maximum counter value. */ union gl_perf_monitor_counter_value Maximum; unsigned query_type; unsigned flags; }; struct gl_perf_monitor_group { /** Human readable name for the group. */ const char *Name; /** * Maximum number of counters in this group which can be active at the * same time. */ GLuint MaxActiveCounters; /** Array of counters within this group. */ const struct gl_perf_monitor_counter *Counters; GLuint NumCounters; bool has_batch; }; /** * A query object instance as described in INTEL_performance_query. * * NB: We want to keep this and the corresponding backend structure * relatively lean considering that applications may expect to * allocate enough objects to be able to query around all draw calls * in a frame. */ struct gl_perf_query_object { GLuint Id; /**< hash table ID/name */ unsigned Used:1; /**< has been used for 1 or more queries */ unsigned Active:1; /**< inside Begin/EndPerfQuery */ unsigned Ready:1; /**< result is ready? */ }; /** * Context state for AMD_performance_monitor. */ struct gl_perf_monitor_state { /** Array of performance monitor groups (indexed by group ID) */ const struct gl_perf_monitor_group *Groups; GLuint NumGroups; /** The table of all performance monitors. */ struct _mesa_HashTable Monitors; }; /** * Context state for INTEL_performance_query. */ struct gl_perf_query_state { struct _mesa_HashTable Objects; /**< The table of all performance query objects */ }; /** * 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 PointSizeEnabled; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */ GLboolean TwoSideEnabled; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */ /** Whether the fixed-func program is being used right now. */ GLboolean _UsesTnlProgram; struct gl_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_program *_Current; GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ /** Program to emulate fixed-function T&L (see above) */ struct gl_program *_TnlProgram; /** Cache of fixed-function programs */ struct gl_program_cache *Cache; GLboolean _Overriden; bool _VPModeOptimizesConstantAttribs; /** * If we have a vertex program, a TNL program or no program at all. * Note that this value should be kept up to date all the time, * nevertheless its correctness is asserted in _mesa_update_state. * The reason is to avoid calling _mesa_update_state twice we need * this value on draw *before* actually calling _mesa_update_state. * Also it should need to get recomputed only on changes to the * vertex program which are heavyweight already. */ gl_vertex_processing_mode _VPMode; GLbitfield _VaryingInputs; /**< mask of VERT_BIT_* flags */ GLbitfield _VPModeInputFilter; }; /** * Context state for tessellation control programs. */ struct gl_tess_ctrl_program_state { /** Currently bound and valid shader. */ struct gl_program *_Current; GLint patch_vertices; GLfloat patch_default_outer_level[4]; GLfloat patch_default_inner_level[2]; }; /** * Context state for tessellation evaluation programs. */ struct gl_tess_eval_program_state { /** Currently bound and valid shader. */ struct gl_program *_Current; }; /** * Context state for geometry programs. */ struct gl_geometry_program_state { /** * Currently enabled and valid program (including internal programs * and compiled shader programs). */ struct gl_program *_Current; }; /** * Context state for fragment programs. */ struct gl_fragment_program_state { GLboolean Enabled; /**< User-set fragment program enable flag */ /** Whether the fixed-func program is being used right now. */ GLboolean _UsesTexEnvProgram; struct gl_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_program *_Current; GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ /** Program to emulate fixed-function texture env/combine (see above) */ struct gl_program *_TexEnvProgram; /** Cache of fixed-function programs */ struct gl_program_cache *Cache; }; /** * Context state for compute programs. */ struct gl_compute_program_state { /** Currently enabled and valid program (including internal programs * and compiled shader programs). */ struct gl_program *_Current; }; /** * ATI_fragment_shader runtime state */ 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 */ /** * Current compile stage: 0 setup pass1, 1 arith pass1, * 2 setup pass2, 3 arith pass2. */ GLubyte cur_pass; GLubyte last_optype; GLboolean interpinp1; GLboolean isValid; /** * Array of 2 bit values for each tex unit to remember whether * STR or STQ swizzle was used */ GLuint swizzlerq; struct gl_program *Program; }; /** * Context state for GL_ATI_fragment_shader */ struct gl_ati_fragment_shader_state { GLboolean Enabled; GLboolean Compiling; GLfloat GlobalConstants[8][4]; struct ati_fragment_shader *Current; }; #define GLSL_DUMP 0x1 /**< Dump shaders to stdout */ #define GLSL_LOG 0x2 /**< Write shaders to files */ #define GLSL_UNIFORMS 0x4 /**< Print glUniform calls */ #define GLSL_NOP_VERT 0x8 /**< Force no-op vertex shaders */ #define GLSL_NOP_FRAG 0x10 /**< Force no-op fragment shaders */ #define GLSL_USE_PROG 0x20 /**< Log glUseProgram calls */ #define GLSL_REPORT_ERRORS 0x40 /**< Print compilation errors */ #define GLSL_DUMP_ON_ERROR 0x80 /**< Dump shaders to stderr on compile error */ #define GLSL_CACHE_INFO 0x100 /**< Print debug information about shader cache */ #define GLSL_CACHE_FALLBACK 0x200 /**< Force shader cache fallback paths */ #define GLSL_SOURCE 0x400 /**< Only dump GLSL */ /** * Context state for GLSL vertex/fragment shaders. * Extended to support pipeline object */ struct gl_pipeline_object { /** Name of the pipeline object as received from glGenProgramPipelines. * It would be 0 for shaders without separate shader objects. */ GLuint Name; GLint RefCount; GLchar *Label; /**< GL_KHR_debug */ /** * Programs used for rendering * * There is a separate program set for each shader stage. */ struct gl_program *CurrentProgram[MESA_SHADER_STAGES]; struct gl_shader_program *ReferencedPrograms[MESA_SHADER_STAGES]; /** * Program used by glUniform calls. * * Explicitly set by \c glUseProgram and \c glActiveProgramEXT. */ struct gl_shader_program *ActiveProgram; GLbitfield Flags; /**< Mask of GLSL_x flags */ GLboolean EverBound; /**< Has the pipeline object been created */ GLboolean Validated; /**< Pipeline Validation status */ GLboolean UserValidated; /**< Validation status initiated by the user */ GLchar *InfoLog; }; /** * Context state for GLSL pipeline shaders. */ struct gl_pipeline_shader_state { /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */ struct gl_pipeline_object *Current; /** Default Object to ensure that _Shader is never NULL */ struct gl_pipeline_object *Default; /** Pipeline objects */ struct _mesa_HashTable Objects; }; /** * Occlusion/timer query object. */ struct gl_query_object { GLenum16 Target; /**< The query target, when active */ GLuint Id; /**< hash table ID/name */ GLchar *Label; /**< GL_KHR_debug */ GLuint64EXT Result; /**< the counter */ GLboolean Active; /**< inside Begin/EndQuery */ GLboolean Ready; /**< result is ready? */ GLboolean EverBound;/**< has query object ever been bound */ GLuint Stream; /**< The stream */ struct pipe_query *pq; /* Begin TIMESTAMP query for GL_TIME_ELAPSED_EXT queries */ struct pipe_query *pq_begin; unsigned type; /**< PIPE_QUERY_x */ }; /** * Context state for query objects. */ struct gl_query_state { struct _mesa_HashTable QueryObjects; struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */ struct gl_query_object *CurrentTimerObject; /* GL_EXT_timer_query */ /** GL_NV_conditional_render */ struct gl_query_object *CondRenderQuery; /** GL_EXT_transform_feedback */ struct gl_query_object *PrimitivesGenerated[MAX_VERTEX_STREAMS]; struct gl_query_object *PrimitivesWritten[MAX_VERTEX_STREAMS]; /** GL_ARB_transform_feedback_overflow_query */ struct gl_query_object *TransformFeedbackOverflow[MAX_VERTEX_STREAMS]; struct gl_query_object *TransformFeedbackOverflowAny; /** GL_ARB_timer_query */ struct gl_query_object *TimeElapsed; /** GL_ARB_pipeline_statistics_query */ struct gl_query_object *pipeline_stats[MAX_PIPELINE_STATISTICS]; GLenum16 CondRenderMode; }; /** Sync object state */ struct gl_sync_object { GLuint Name; /**< Fence name */ GLint RefCount; /**< Reference count */ GLchar *Label; /**< GL_KHR_debug */ GLboolean DeletePending; /**< Object was deleted while there were still * live references (e.g., sync not yet finished) */ GLenum16 SyncCondition; GLbitfield Flags; /**< Flags passed to glFenceSync */ GLuint StatusFlag:1; /**< Has the sync object been signaled? */ struct pipe_fence_handle *fence; simple_mtx_t mutex; /**< protects "fence" */ }; /** * State which can be shared by multiple contexts: */ struct gl_shared_state { simple_mtx_t Mutex; /**< for thread safety */ GLint RefCount; /**< Reference count */ bool DisplayListsAffectGLThread; 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[NUM_TEXTURE_TARGETS][2]; /**< [color, depth] */ /** * \name Thread safety and statechange notification for texture * objects. * * \todo Improve the granularity of locking. */ /*@{*/ simple_mtx_t TexMutex; /**< texobj thread safety */ GLuint TextureStateStamp; /**< state notification for shared tex */ /*@}*/ /** * \name Vertex/geometry/fragment programs */ /*@{*/ struct _mesa_HashTable Programs; /**< All vertex/fragment programs */ struct gl_program *DefaultVertexProgram; struct gl_program *DefaultFragmentProgram; /*@}*/ /* GL_ATI_fragment_shader */ struct _mesa_HashTable ATIShaders; struct ati_fragment_shader *DefaultFragmentShader; struct _mesa_HashTable BufferObjects; /* Buffer objects released by a different context than the one that * created them. Since the creating context holds one global buffer * reference for each buffer it created and skips reference counting, * deleting a buffer by another context can't touch the buffer reference * held by the context that created it. Only the creating context can * remove its global buffer reference. * * This list contains all buffers that were deleted by a different context * than the one that created them. This list should be probed by all * contexts regularly and remove references of those buffers that they own. */ struct set *ZombieBufferObjects; /** Table of both gl_shader and gl_shader_program objects */ struct _mesa_HashTable ShaderObjects; /* GL_EXT_framebuffer_object */ struct _mesa_HashTable RenderBuffers; struct _mesa_HashTable FrameBuffers; /* GL_ARB_sync */ struct set *SyncObjects; /** GL_ARB_sampler_objects */ struct _mesa_HashTable SamplerObjects; /* GL_ARB_bindless_texture */ struct hash_table_u64 *TextureHandles; struct hash_table_u64 *ImageHandles; mtx_t HandlesMutex; /**< For texture/image handles safety */ /* GL_ARB_shading_language_include */ struct shader_includes *ShaderIncludes; /* glCompileShaderInclude expects ShaderIncludes not to change while it is * in progress. */ simple_mtx_t ShaderIncludeMutex; /** EXT_external_objects */ struct _mesa_HashTable MemoryObjects; /** EXT_semaphore */ struct _mesa_HashTable SemaphoreObjects; /** * Whether at least one image has been imported or exported, excluding * the default framebuffer. If this is false, glFlush can be executed * asynchronously because there is no invisible dependency on external * users. */ bool HasExternallySharedImages; /* Small display list storage */ struct { union gl_dlist_node *ptr; struct util_idalloc free_idx; unsigned size; } small_dlist_store; /* Global GLThread state. */ struct { /* The last context that locked global mutexes. */ struct gl_context *LastExecutingCtx; /* The last time LastExecutingCtx started executing after a different * context (the time of multiple active contexts). */ int64_t LastContextSwitchTime; /* The time for which no context can lock global mutexes since * LastContextSwitchTime. */ int64_t NoLockDuration; } GLThread; }; /** * Renderbuffers represent drawing surfaces such as color, depth and/or * stencil. A framebuffer object has a set of renderbuffers. * Drivers will typically derive subclasses of this type. */ struct gl_renderbuffer { GLuint Name; GLchar *Label; /**< GL_KHR_debug */ GLint RefCount; GLuint Width, Height; GLuint Depth; GLboolean AttachedAnytime; /**< TRUE if it was attached to a framebuffer */ GLubyte NumSamples; /**< zero means not multisampled */ GLubyte NumStorageSamples; /**< for AMD_framebuffer_multisample_advanced */ GLenum16 InternalFormat; /**< The user-specified format */ GLenum16 _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or GL_STENCIL_INDEX. */ mesa_format Format; /**< The actual renderbuffer memory format */ /** * Pointer to the texture image if this renderbuffer wraps a texture, * otherwise NULL. * * Note that the reference on the gl_texture_object containing this * TexImage is held by the gl_renderbuffer_attachment. */ struct gl_texture_image *TexImage; /** Delete this renderbuffer */ void (*Delete)(struct gl_context *ctx, struct gl_renderbuffer *rb); /** Allocate new storage for this renderbuffer */ GLboolean (*AllocStorage)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLenum internalFormat, GLuint width, GLuint height); struct pipe_resource *texture; /* This points to either "surface_linear" or "surface_srgb". * It doesn't hold the pipe_surface reference. The other two do. */ struct pipe_surface *surface; struct pipe_surface *surface_linear; struct pipe_surface *surface_srgb; GLboolean defined; /**< defined contents? */ struct pipe_transfer *transfer; /**< only used when mapping the resource */ /** * Used only when hardware accumulation buffers are not supported. */ bool software; void *data; bool use_readpix_cache; /* Inputs from Driver.RenderTexture, don't use directly. */ bool is_rtt; /**< whether Driver.RenderTexture was called */ unsigned rtt_face, rtt_slice; bool rtt_layered; /**< whether glFramebufferTexture was called */ unsigned rtt_nr_samples; /**< from FramebufferTexture2DMultisampleEXT */ unsigned rtt_numviews; }; /** * 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 { GLenum16 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. */ GLsizei NumSamples; /**< from FramebufferTexture2DMultisampleEXT */ GLuint CubeMapFace; /**< 0 .. 5, for cube map textures. */ GLuint Zoffset; /**< Slice for 3D textures, or layer for both 1D * and 2D array textures */ GLboolean Layered; GLsizei NumViews; }; /** * 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 { simple_mtx_t 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; GLchar *Label; /**< GL_KHR_debug */ GLboolean DeletePending; /** * The framebuffer's visual. Immutable if this is a window system buffer. * Computed from attachments if user-made FBO. */ struct gl_config Visual; /** * Size of frame buffer in pixels. If there are no attachments, then both * of these are 0. */ GLuint Width, Height; /** * In the case that the framebuffer has no attachment (i.e. * GL_ARB_framebuffer_no_attachments) then the geometry of * the framebuffer is specified by the default values. */ struct { GLuint Width, Height, Layers, NumSamples; GLboolean FixedSampleLocations; /* Derived from NumSamples by the driver so that it can choose a valid * value for the hardware. */ GLuint _NumSamples; } DefaultGeometry; /** \name Drawing bounds (Intersection of buffer size and scissor box) * The drawing region is given by [_Xmin, _Xmax) x [_Ymin, _Ymax), * (inclusive for _Xmin and _Ymin while exclusive for _Xmax and _Ymax) */ /*@{*/ GLint _Xmin, _Xmax; GLint _Ymin, _Ymax; /*@}*/ /** \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 */ GLenum16 _Status; /** Whether one of Attachment has Type != GL_NONE * NOTE: the values for Width and Height are set to 0 in case of having * no attachments, a backend driver supporting the extension * GL_ARB_framebuffer_no_attachments must check for the flag _HasAttachments * and if GL_FALSE, must then use the values in DefaultGeometry to initialize * its viewport, scissor and so on (in particular _Xmin, _Xmax, _Ymin and * _Ymax do NOT take into account _HasAttachments being false). To get the * geometry of the framebuffer, the helper functions * _mesa_geometric_width(), * _mesa_geometric_height(), * _mesa_geometric_samples() and * _mesa_geometric_layers() * are available that check _HasAttachments. */ bool _HasAttachments; GLbitfield _IntegerBuffers; /**< Which color buffers are integer valued */ GLbitfield _BlendForceAlphaToOne; /**< Which color buffers need blend factor adjustment */ GLbitfield _IsRGB; /**< Which color buffers have an RGB base format? */ GLbitfield _FP32Buffers; /**< Which color buffers are FP32 */ /* ARB_color_buffer_float */ GLboolean _AllColorBuffersFixedPoint; /* no integer, no float */ GLboolean _HasSNormOrFloatColorBuffer; /** * The maximum number of layers in the framebuffer, or 0 if the framebuffer * is not layered. For cube maps and cube map arrays, each cube face * counts as a layer. As the case for Width, Height a backend driver * supporting GL_ARB_framebuffer_no_attachments must use DefaultGeometry * in the case that _HasAttachments is false */ GLuint MaxNumLayers; /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */ struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT]; struct pipe_resource *resolve; /**< color resolve attachment */ /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER * attribute group and GL_PIXEL attribute group, respectively. */ GLenum16 ColorDrawBuffer[MAX_DRAW_BUFFERS]; GLenum16 ColorReadBuffer; /* GL_ARB_sample_locations */ GLfloat *SampleLocationTable; /**< If NULL, no table has been specified */ GLboolean ProgrammableSampleLocations; GLboolean SampleLocationPixelGrid; /** Computed from ColorDraw/ReadBuffer above */ GLuint _NumColorDrawBuffers; gl_buffer_index _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; gl_buffer_index _ColorReadBufferIndex; struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS]; struct gl_renderbuffer *_ColorReadBuffer; /* GL_MESA_framebuffer_flip_y */ bool FlipY; /** Delete this framebuffer */ void (*Delete)(struct gl_framebuffer *fb); struct pipe_frontend_drawable *drawable; enum st_attachment_type statts[ST_ATTACHMENT_COUNT]; unsigned num_statts; int32_t stamp; int32_t drawable_stamp; uint32_t drawable_ID; /* list of framebuffer objects */ struct list_head head; }; /** * A stack of matrices (projection, modelview, color, texture, etc). */ struct gl_matrix_stack { GLmatrix *Top; /**< points into Stack */ GLmatrix *Stack; /**< array [MaxDepth] of GLmatrix */ unsigned StackSize; /**< Number of elements in Stack */ GLuint Depth; /**< 0 <= Depth < MaxDepth */ GLuint MaxDepth; /**< size of Stack[] array */ GLuint DirtyFlag; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */ bool ChangedSincePush; }; /** * \name Bits for image transfer operations * \sa __struct gl_contextRec::ImageTransferState. */ /*@{*/ #define IMAGE_SCALE_BIAS_BIT 0x1 #define IMAGE_SHIFT_OFFSET_BIT 0x2 #define IMAGE_MAP_COLOR_BIT 0x4 #define IMAGE_CLAMP_BIT 0x800 /** Pixel Transfer ops */ #define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \ IMAGE_SHIFT_OFFSET_BIT | \ IMAGE_MAP_COLOR_BIT) /** * \name Bits to indicate what state has changed. */ /*@{*/ #define _NEW_MODELVIEW (1u << 0) /**< gl_context::ModelView */ #define _NEW_PROJECTION (1u << 1) /**< gl_context::Projection */ #define _NEW_TEXTURE_MATRIX (1u << 2) /**< gl_context::TextureMatrix */ #define _NEW_COLOR (1u << 3) /**< gl_context::Color */ #define _NEW_DEPTH (1u << 4) /**< gl_context::Depth */ #define _NEW_TNL_SPACES (1u << 5) /**< _mesa_update_tnl_spaces */ #define _NEW_FOG (1u << 6) /**< gl_context::Fog */ #define _NEW_HINT (1u << 7) /**< gl_context::Hint */ #define _NEW_LIGHT_CONSTANTS (1u << 8) /**< gl_context::Light */ #define _NEW_LINE (1u << 9) /**< gl_context::Line */ #define _NEW_PIXEL (1u << 10) /**< gl_context::Pixel */ #define _NEW_POINT (1u << 11) /**< gl_context::Point */ #define _NEW_POLYGON (1u << 12) /**< gl_context::Polygon */ #define _NEW_POLYGONSTIPPLE (1u << 13) /**< gl_context::PolygonStipple */ #define _NEW_SCISSOR (1u << 14) /**< gl_context::Scissor */ #define _NEW_STENCIL (1u << 15) /**< gl_context::Stencil */ #define _NEW_TEXTURE_OBJECT (1u << 16) /**< gl_context::Texture (bindings only) */ #define _NEW_TRANSFORM (1u << 17) /**< gl_context::Transform */ #define _NEW_VIEWPORT (1u << 18) /**< gl_context::Viewport */ #define _NEW_TEXTURE_STATE (1u << 19) /**< gl_context::Texture (states only) */ #define _NEW_LIGHT_STATE (1u << 20) /**< gl_context::Light */ #define _NEW_RENDERMODE (1u << 21) /**< gl_context::RenderMode, etc */ #define _NEW_BUFFERS (1u << 22) /**< gl_context::Visual, DrawBuffer, */ #define _NEW_CURRENT_ATTRIB (1u << 23) /**< gl_context::Current */ #define _NEW_MULTISAMPLE (1u << 24) /**< gl_context::Multisample */ #define _NEW_TRACK_MATRIX (1u << 25) /**< gl_context::VertexProgram */ #define _NEW_PROGRAM (1u << 26) /**< New program/shader state */ #define _NEW_PROGRAM_CONSTANTS (1u << 27) #define _NEW_FF_VERT_PROGRAM (1u << 28) #define _NEW_FRAG_CLAMP (1u << 29) #define _NEW_MATERIAL (1u << 30) /**< gl_context::Light.Material */ #define _NEW_FF_FRAG_PROGRAM (1u << 31) #define _NEW_ALL ~0 /*@}*/ /* This has to be included here. */ #include "dd.h" /** Opaque declaration of display list payload data type */ union gl_dlist_node; /** * Per-display list information. */ struct gl_display_list { GLuint Name; bool execute_glthread; bool small_list; GLchar *Label; /**< GL_KHR_debug */ /** The dlist commands are in a linked list of nodes */ union { /* Big lists allocate their own storage */ union gl_dlist_node *Head; /* Small lists use ctx->Shared->small_dlist_store */ struct { unsigned start; unsigned count; }; }; }; /** * State used during display list compilation and execution. */ struct gl_dlist_state { 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 */ GLuint CallDepth; /**< Current recursion calling depth */ GLuint LastInstSize; /**< Size of the last node. */ GLubyte ActiveAttribSize[VERT_ATTRIB_MAX]; uint32_t CurrentAttrib[VERT_ATTRIB_MAX][8]; GLubyte ActiveMaterialSize[MAT_ATTRIB_MAX]; GLfloat CurrentMaterial[MAT_ATTRIB_MAX][4]; struct { /* State known to have been set by the currently-compiling display * list. Used to eliminate some redundant state changes. */ GLenum16 ShadeModel; bool UseLoopback; } Current; }; /** * Driver-specific state flags. * * These are or'd with gl_context::NewDriverState to notify a driver about * a state change. The driver sets the flags at context creation and * the meaning of the bits set is opaque to core Mesa. */ struct gl_driver_flags { /** * gl_context::AtomicBufferBindings */ uint64_t NewAtomicBuffer; /** gl_context::Color::Alpha* */ uint64_t NewAlphaTest; /** gl_context::Multisample::Enabled */ uint64_t NewMultisampleEnable; /** gl_context::Multisample::(Min)SampleShading */ uint64_t NewSampleShading; /** gl_context::Transform::ClipPlanesEnabled */ uint64_t NewClipPlaneEnable; /** gl_context::Color::ClampFragmentColor */ uint64_t NewFragClamp; /** Shader constants (uniforms, program parameters, state constants) */ uint64_t NewShaderConstants[MESA_SHADER_STAGES]; /** For GL_CLAMP emulation */ uint64_t NewSamplersWithClamp; }; struct gl_buffer_binding { struct gl_buffer_object *BufferObject; /** Start of uniform block data in the buffer */ GLintptr Offset; /** Size of data allowed to be referenced from the buffer (in bytes) */ GLsizeiptr Size; /** * glBindBufferBase() indicates that the Size should be ignored and only * limited by the current size of the BufferObject. */ GLboolean AutomaticSize; }; /** * ARB_shader_image_load_store image unit. */ struct gl_image_unit { /** * Texture object bound to this unit. */ struct gl_texture_object *TexObj; /** * Level of the texture object bound to this unit. */ GLubyte Level; /** * \c GL_TRUE if the whole level is bound as an array of layers, \c * GL_FALSE if only some specific layer of the texture is bound. * \sa Layer */ GLboolean Layered; /** * Layer of the texture object bound to this unit as specified by the * application. */ GLushort Layer; /** * Layer of the texture object bound to this unit, or zero if * Layered == false. */ GLushort _Layer; /** * Access allowed to this texture image. Either \c GL_READ_ONLY, * \c GL_WRITE_ONLY or \c GL_READ_WRITE. */ GLenum16 Access; /** * GL internal format that determines the interpretation of the * image memory when shader image operations are performed through * this unit. */ GLenum16 Format; /** * Mesa format corresponding to \c Format. */ mesa_format _ActualFormat:16; }; /** * Shader subroutines storage */ struct gl_subroutine_index_binding { GLuint NumIndex; GLuint *IndexPtr; }; struct gl_texture_handle_object { struct gl_texture_object *texObj; struct gl_sampler_object *sampObj; GLuint64 handle; }; struct gl_image_handle_object { struct gl_image_unit imgObj; GLuint64 handle; }; struct gl_memory_object { GLuint Name; /**< hash table ID/name */ GLboolean Immutable; /**< denotes mutability state of parameters */ GLboolean Dedicated; /**< import memory from a dedicated allocation */ struct pipe_memory_object *memory; /* TEXTURE_TILING_EXT param from gl_texture_object */ GLuint TextureTiling; }; struct gl_semaphore_object { GLuint Name; /**< hash table ID/name */ struct pipe_fence_handle *fence; enum pipe_fd_type type; uint64_t timeline_value; }; /** * One element of the client attrib stack. */ struct gl_client_attrib_node { GLbitfield Mask; struct gl_array_attrib Array; struct gl_vertex_array_object VAO; struct gl_pixelstore_attrib Pack; struct gl_pixelstore_attrib Unpack; }; /** * The VBO module implemented in src/vbo. */ struct vbo_context { struct gl_array_attributes current[VBO_ATTRIB_MAX]; struct gl_vertex_array_object *VAO; struct vbo_exec_context exec; struct vbo_save_context save; }; /** * glEnable node for the attribute stack. (glPushAttrib/glPopAttrib) */ struct gl_enable_attrib_node { GLboolean AlphaTest; GLboolean AutoNormal; GLboolean Blend; GLbitfield ClipPlanes; GLboolean ColorMaterial; GLboolean CullFace; GLboolean DepthClampNear; GLboolean DepthClampFar; GLboolean DepthTest; GLboolean Dither; GLboolean Fog; 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 Map2Color4; GLboolean Map2Index; GLboolean Map2Normal; GLboolean Map2TextureCoord1; GLboolean Map2TextureCoord2; GLboolean Map2TextureCoord3; GLboolean Map2TextureCoord4; GLboolean Map2Vertex3; GLboolean Map2Vertex4; GLboolean Normalize; GLboolean PixelTexture; GLboolean PointSmooth; GLboolean PolygonOffsetPoint; GLboolean PolygonOffsetLine; GLboolean PolygonOffsetFill; GLboolean PolygonSmooth; GLboolean PolygonStipple; GLboolean RescaleNormals; GLbitfield 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 RasterPositionUnclipped; /* GL_IBM_rasterpos_clip */ GLbitfield Texture[MAX_TEXTURE_UNITS]; GLbitfield TexGen[MAX_TEXTURE_UNITS]; /* GL_ARB_vertex_program */ GLboolean VertexProgram; GLboolean VertexProgramPointSize; GLboolean VertexProgramTwoSide; /* GL_ARB_fragment_program */ GLboolean FragmentProgram; /* GL_ARB_point_sprite */ GLboolean PointSprite; GLboolean FragmentShaderATI; /* GL_ARB_framebuffer_sRGB / GL_EXT_framebuffer_sRGB */ GLboolean sRGBEnabled; /* GL_NV_conservative_raster */ GLboolean ConservativeRasterization; }; /** * Texture node for the attribute stack. (glPushAttrib/glPopAttrib) */ struct gl_texture_attrib_node { GLuint CurrentUnit; /**< GL_ACTIVE_TEXTURE */ GLuint NumTexSaved; struct gl_fixedfunc_texture_unit FixedFuncUnit[MAX_TEXTURE_COORD_UNITS]; GLfloat LodBias[MAX_TEXTURE_UNITS]; float LodBiasQuantized[MAX_TEXTURE_UNITS]; /** Saved default texture object state. */ struct gl_texture_object SavedDefaultObj[NUM_TEXTURE_TARGETS]; /* For saving per texture object state (wrap modes, filters, etc), * SavedObj[][].Target is unused, so the value is invalid. */ struct gl_texture_object SavedObj[MAX_COMBINED_TEXTURE_IMAGE_UNITS][NUM_TEXTURE_TARGETS]; }; /** * Node for the attribute stack. (glPushAttrib/glPopAttrib) */ struct gl_attrib_node { GLbitfield Mask; GLbitfield OldPopAttribStateMask; struct gl_accum_attrib Accum; struct gl_colorbuffer_attrib Color; struct gl_current_attrib Current; struct gl_depthbuffer_attrib Depth; struct gl_enable_attrib_node Enable; struct gl_eval_attrib Eval; struct gl_fog_attrib Fog; struct gl_hint_attrib Hint; struct gl_light_attrib Light; struct gl_line_attrib Line; struct gl_list_attrib List; struct gl_pixel_attrib Pixel; struct gl_point_attrib Point; struct gl_polygon_attrib Polygon; GLuint PolygonStipple[32]; struct gl_scissor_attrib Scissor; struct gl_stencil_attrib Stencil; struct gl_transform_attrib Transform; struct gl_multisample_attrib Multisample; struct gl_texture_attrib_node Texture; struct viewport_state { struct gl_viewport_attrib ViewportArray[MAX_VIEWPORTS]; GLuint SubpixelPrecisionBias[2]; } Viewport; }; /** * Dispatch tables. */ struct gl_dispatch { /** * For non-displaylist-saving, non-begin/end. */ struct _glapi_table *OutsideBeginEnd; /** * The dispatch table used between glBegin() and glEnd() (outside of a * display list). Only valid functions between those two are set. */ struct _glapi_table *BeginEnd; /** * Same as BeginEnd except glVertex{Attrib} functions. Used when * HW GL_SELECT mode instead of BeginEnd to insert extra code * for GL_SELECT. */ struct _glapi_table *HWSelectModeBeginEnd; /** * The dispatch table used between glNewList() and glEndList(). */ struct _glapi_table *Save; /** * Dispatch table for when a graphics reset has happened. */ struct _glapi_table *ContextLost; /** * The current dispatch table for non-displaylist-saving execution. * It can be equal to one of these: * - OutsideBeginEnd * - BeginEnd * - HWSelectModeBeginEnd */ struct _glapi_table *Exec; /** * The current dispatch table overall. It can be equal to one of these: * - Exec * - Save * - ContextLost */ struct _glapi_table *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. */ struct gl_context { /** State possibly shared with other contexts in the address space */ struct gl_shared_state *Shared; /** Whether Shared->BufferObjects has already been locked for this context. */ bool BufferObjectsLocked; /** Whether Shared->TexMutex has already been locked for this context. */ bool TexturesLocked; /** \name API function pointer tables */ /*@{*/ gl_api API; /** * Dispatch tables implementing OpenGL functions. GLThread has no effect * on this. */ struct gl_dispatch Dispatch; /** * Dispatch table used by GLThread, a component used to marshal API * calls from an application to a separate thread. */ struct _glapi_table *MarshalExec; /** * Dispatch table currently in use for fielding API calls from the client * program. If API calls are being marshalled to another thread, this == * MarshalExec. Otherwise it == Dispatch.Current. */ struct _glapi_table *GLApi; /*@}*/ struct glthread_state GLThread; struct gl_config Visual; struct gl_framebuffer *DrawBuffer; /**< buffer for writing */ struct gl_framebuffer *ReadBuffer; /**< buffer for reading */ struct gl_framebuffer *WinSysDrawBuffer; /**< set with MakeCurrent */ struct gl_framebuffer *WinSysReadBuffer; /**< set with MakeCurrent */ /** * Device driver function pointer table */ struct dd_function_table Driver; /** Core/Driver constants */ struct gl_constants Const; /** * Bitmask of valid primitive types supported by this context type, * GL version, and extensions, not taking current states into account. * Current states can further reduce the final bitmask at draw time. */ GLbitfield SupportedPrimMask; /** * Bitmask of valid primitive types depending on current states (such as * shaders). This is 0 if the current states should result in * GL_INVALID_OPERATION in draw calls. */ GLbitfield ValidPrimMask; GLenum16 DrawGLError; /**< GL error to return from draw calls */ /** * Same as ValidPrimMask, but should be applied to glDrawElements*. */ GLbitfield ValidPrimMaskIndexed; /** DrawID for the next non-multi non-indirect draw. Only set by glthread. */ GLuint DrawID; /** * Whether DrawPixels/CopyPixels/Bitmap are valid to render. */ bool DrawPixValid; /** \name The various 4x4 matrix stacks */ /*@{*/ struct gl_matrix_stack ModelviewMatrixStack; struct gl_matrix_stack ProjectionMatrixStack; struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS]; struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES]; struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */ /*@}*/ /** Combined modelview and projection matrix */ GLmatrix _ModelProjectMatrix; /** \name Display lists */ struct gl_dlist_state ListState; GLboolean ExecuteFlag; /**< Execute GL commands? */ GLboolean CompileFlag; /**< Compile GL commands into display list? */ /** Extension information */ struct gl_extensions Extensions; /** GL version integer, for example 31 for GL 3.1, or 20 for GLES 2.0. */ GLuint Version; char *VersionString; /** \name State attribute stack (for glPush/PopAttrib) */ /*@{*/ GLuint AttribStackDepth; struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH]; /*@}*/ /** \name Renderer attribute groups * * We define a struct for each attribute group to make pushing and popping * attributes easy. Also it's a good organization. */ /*@{*/ struct gl_accum_attrib Accum; /**< Accum buffer attributes */ struct gl_colorbuffer_attrib Color; /**< Color buffer attributes */ struct gl_current_attrib Current; /**< Current attributes */ struct gl_depthbuffer_attrib Depth; /**< Depth buffer attributes */ struct gl_eval_attrib Eval; /**< Eval attributes */ struct gl_fog_attrib Fog; /**< Fog attributes */ struct gl_hint_attrib Hint; /**< Hint attributes */ struct gl_light_attrib Light; /**< Light attributes */ struct gl_line_attrib Line; /**< Line attributes */ struct gl_list_attrib List; /**< List attributes */ struct gl_multisample_attrib Multisample; struct gl_pixel_attrib Pixel; /**< Pixel attributes */ struct gl_point_attrib Point; /**< Point attributes */ struct gl_polygon_attrib Polygon; /**< Polygon attributes */ GLuint PolygonStipple[32]; /**< Polygon stipple */ struct gl_scissor_attrib Scissor; /**< Scissor attributes */ struct gl_stencil_attrib Stencil; /**< Stencil buffer attributes */ struct gl_texture_attrib Texture; /**< Texture attributes */ struct gl_transform_attrib Transform; /**< Transformation attributes */ struct gl_viewport_attrib ViewportArray[MAX_VIEWPORTS]; /**< Viewport attributes */ GLuint SubpixelPrecisionBias[2]; /**< Viewport attributes */ /*@}*/ /** \name Client attribute stack */ /*@{*/ GLuint ClientAttribStackDepth; struct gl_client_attrib_node ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH]; /*@}*/ /** \name Client attribute groups */ /*@{*/ struct gl_array_attrib Array; /**< Vertex arrays */ struct gl_pixelstore_attrib Pack; /**< Pixel packing */ struct gl_pixelstore_attrib Unpack; /**< Pixel unpacking */ struct gl_pixelstore_attrib DefaultPacking; /**< Default params */ /*@}*/ /** \name Other assorted state (not pushed/popped on attribute stack) */ /*@{*/ struct gl_pixelmaps PixelMaps; struct gl_evaluators EvalMap; /**< All evaluators */ struct gl_feedback Feedback; /**< Feedback */ struct gl_selection Select; /**< Selection */ struct gl_program_state Program; /**< general program state */ struct gl_vertex_program_state VertexProgram; struct gl_fragment_program_state FragmentProgram; struct gl_geometry_program_state GeometryProgram; struct gl_compute_program_state ComputeProgram; struct gl_tess_ctrl_program_state TessCtrlProgram; struct gl_tess_eval_program_state TessEvalProgram; struct gl_ati_fragment_shader_state ATIFragmentShader; struct gl_pipeline_shader_state Pipeline; /**< GLSL pipeline shader object state */ struct gl_pipeline_object Shader; /**< GLSL shader object state */ /** * Current active shader pipeline state * * Almost all internal users want ::_Shader instead of ::Shader. The * exceptions are bits of legacy GLSL API that do not know about separate * shader objects. * * If a program is active via \c glUseProgram, this will point to * \c ::Shader. * * If a program pipeline is active via \c glBindProgramPipeline, this will * point to \c ::Pipeline.Current. * * If neither a program nor a program pipeline is active, this will point to * \c ::Pipeline.Default. This ensures that \c ::_Shader will never be * \c NULL. */ struct gl_pipeline_object *_Shader; /** * NIR containing the functions that implement software fp64 support. */ struct nir_shader *SoftFP64; struct gl_query_state Query; /**< occlusion, timer queries */ struct gl_transform_feedback_state TransformFeedback; struct gl_perf_monitor_state PerfMonitor; struct gl_perf_query_state PerfQuery; struct gl_buffer_object *DrawIndirectBuffer; /** < GL_ARB_draw_indirect */ struct gl_buffer_object *ParameterBuffer; /** < GL_ARB_indirect_parameters */ struct gl_buffer_object *DispatchIndirectBuffer; /** < GL_ARB_compute_shader */ struct gl_buffer_object *CopyReadBuffer; /**< GL_ARB_copy_buffer */ struct gl_buffer_object *CopyWriteBuffer; /**< GL_ARB_copy_buffer */ struct gl_buffer_object *QueryBuffer; /**< GL_ARB_query_buffer_object */ /** * Current GL_ARB_uniform_buffer_object binding referenced by * GL_UNIFORM_BUFFER target for glBufferData, glMapBuffer, etc. */ struct gl_buffer_object *UniformBuffer; /** * Current GL_ARB_shader_storage_buffer_object binding referenced by * GL_SHADER_STORAGE_BUFFER target for glBufferData, glMapBuffer, etc. */ struct gl_buffer_object *ShaderStorageBuffer; /** * Array of uniform buffers for GL_ARB_uniform_buffer_object and GL 3.1. * This is set up using glBindBufferRange() or glBindBufferBase(). They are * associated with uniform blocks by glUniformBlockBinding()'s state in the * shader program. */ struct gl_buffer_binding UniformBufferBindings[MAX_COMBINED_UNIFORM_BUFFERS]; /** * Array of shader storage buffers for ARB_shader_storage_buffer_object * and GL 4.3. This is set up using glBindBufferRange() or * glBindBufferBase(). They are associated with shader storage blocks by * glShaderStorageBlockBinding()'s state in the shader program. */ struct gl_buffer_binding ShaderStorageBufferBindings[MAX_COMBINED_SHADER_STORAGE_BUFFERS]; /** * Object currently associated with the GL_ATOMIC_COUNTER_BUFFER * target. */ struct gl_buffer_object *AtomicBuffer; /** * Object currently associated w/ the GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD * target. */ struct gl_buffer_object *ExternalVirtualMemoryBuffer; /** * Array of atomic counter buffer binding points. */ struct gl_buffer_binding AtomicBufferBindings[MAX_COMBINED_ATOMIC_BUFFERS]; /** * Array of image units for ARB_shader_image_load_store. */ struct gl_image_unit ImageUnits[MAX_IMAGE_UNITS]; struct gl_subroutine_index_binding SubroutineIndex[MESA_SHADER_STAGES]; /*@}*/ struct gl_meta_state *Meta; /**< for "meta" operations */ /* GL_EXT_framebuffer_object */ struct gl_renderbuffer *CurrentRenderbuffer; GLenum16 ErrorValue; /**< Last error code */ /** * Recognize and silence repeated error debug messages in buggy apps. */ const char *ErrorDebugFmtString; GLuint ErrorDebugCount; /* GL_ARB_debug_output/GL_KHR_debug */ simple_mtx_t DebugMutex; struct gl_debug_state *Debug; GLenum16 RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */ GLbitfield NewState; /**< bitwise-or of _NEW_* flags */ GLbitfield PopAttribState; /**< Updated state since glPushAttrib */ uint64_t NewDriverState; /**< bitwise-or of flags from DriverFlags */ struct gl_driver_flags DriverFlags; GLboolean ViewportInitialized; /**< has viewport size been initialized? */ GLboolean _AllowDrawOutOfOrder; /** \name Derived state */ GLbitfield _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */ GLfloat _EyeZDir[3]; GLfloat _ModelViewInvScale; /* may be for model- or eyespace lighting */ GLfloat _ModelViewInvScaleEyespace; /* always factor defined in spec */ GLboolean _NeedEyeCoords; GLuint TextureStateTimestamp; /**< detect changes to shared state */ GLboolean PointSizeIsSet; /**< the glPointSize value in the shader is set */ /** \name For debugging/development only */ /*@{*/ GLboolean FirstTimeCurrent; /*@}*/ /** * False if this context was created without a config. This is needed * because the initial state of glDrawBuffers depends on this */ GLboolean HasConfig; GLboolean TextureFormatSupported[MESA_FORMAT_COUNT]; GLboolean RasterDiscard; /**< GL_RASTERIZER_DISCARD */ GLboolean IntelConservativeRasterization; /**< GL_CONSERVATIVE_RASTERIZATION_INTEL */ GLboolean ConservativeRasterization; /**< GL_CONSERVATIVE_RASTERIZATION_NV */ GLfloat ConservativeRasterDilate; GLenum16 ConservativeRasterMode; GLboolean IntelBlackholeRender; /**< GL_INTEL_blackhole_render */ /** Does glVertexAttrib(0) alias glVertex()? */ bool _AttribZeroAliasesVertex; /** * When set, TileRasterOrderIncreasingX/Y control the order that a tiled * renderer's tiles should be excecuted, to meet the requirements of * GL_MESA_tile_raster_order. */ GLboolean TileRasterOrderFixed; GLboolean TileRasterOrderIncreasingX; GLboolean TileRasterOrderIncreasingY; /** * \name Hooks for module contexts. * * These will eventually live in the driver or elsewhere. */ /*@{*/ struct vbo_context vbo_context; struct st_context *st; struct pipe_screen *screen; struct pipe_context *pipe; struct st_config_options *st_opts; struct cso_context *cso_context; bool has_invalidate_buffer; bool has_string_marker; /* On old libGL's for linux we need to invalidate the drawables * on glViewpport calls, this is set via a option. */ bool invalidate_on_gl_viewport; /*@}*/ /** * \name NV_vdpau_interop */ /*@{*/ const void *vdpDevice; const void *vdpGetProcAddress; struct set *vdpSurfaces; /*@}*/ /** * Has this context observed a GPU reset in any context in the share group? * * Once this field becomes true, it is never reset to false. */ GLboolean ShareGroupReset; /** * \name OES_primitive_bounding_box * * Stores the arguments to glPrimitiveBoundingBox */ GLfloat PrimitiveBoundingBox[8]; struct disk_cache *Cache; /** * \name GL_ARB_bindless_texture */ /*@{*/ struct hash_table_u64 *ResidentTextureHandles; struct hash_table_u64 *ResidentImageHandles; /*@}*/ bool shader_builtin_ref; struct pipe_draw_start_count_bias *tmp_draws; unsigned num_tmp_draws; }; #ifndef NDEBUG extern int MESA_VERBOSE; extern int MESA_DEBUG_FLAGS; #else # define MESA_VERBOSE 0 # define MESA_DEBUG_FLAGS 0 #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_SWAPBUFFERS = 0x4000 }; /** The MESA_DEBUG_FLAGS var is a bitmask of these flags */ enum _debug { DEBUG_SILENT = (1 << 0), DEBUG_ALWAYS_FLUSH = (1 << 1), DEBUG_INCOMPLETE_TEXTURE = (1 << 2), DEBUG_INCOMPLETE_FBO = (1 << 3), DEBUG_CONTEXT = (1 << 4) }; #ifdef __cplusplus } #endif #endif /* MTYPES_H */