* Mesa 3-D graphics library
* Version: 6.5
*
- * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#include "glapitable.h"
#include "glthread.h"
#include "math/m_matrix.h" /* GLmatrix */
+#include "bitset.h"
/**
VERT_ATTRIB_COLOR0 = 3,
VERT_ATTRIB_COLOR1 = 4,
VERT_ATTRIB_FOG = 5,
- VERT_ATTRIB_SIX = 6,
+ VERT_ATTRIB_COLOR_INDEX = 6,
VERT_ATTRIB_SEVEN = 7,
VERT_ATTRIB_TEX0 = 8,
VERT_ATTRIB_TEX1 = 9,
VERT_ATTRIB_GENERIC1 = 17,
VERT_ATTRIB_GENERIC2 = 18,
VERT_ATTRIB_GENERIC3 = 19,
- VERT_ATTRIB_MAX = 16 /* XXX not counting generic attribs yet */
+ VERT_ATTRIB_GENERIC4 = 20,
+ VERT_ATTRIB_GENERIC5 = 21,
+ VERT_ATTRIB_GENERIC6 = 22,
+ VERT_ATTRIB_GENERIC7 = 23,
+ VERT_ATTRIB_GENERIC8 = 24,
+ VERT_ATTRIB_GENERIC9 = 25,
+ VERT_ATTRIB_GENERIC10 = 26,
+ VERT_ATTRIB_GENERIC11 = 27,
+ VERT_ATTRIB_GENERIC12 = 28,
+ VERT_ATTRIB_GENERIC13 = 29,
+ VERT_ATTRIB_GENERIC14 = 30,
+ VERT_ATTRIB_GENERIC15 = 31,
+ VERT_ATTRIB_MAX = 32
};
/**
* These are used in bitfields in many places.
*/
/*@{*/
-#define VERT_BIT_POS (1 << VERT_ATTRIB_POS)
-#define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT)
-#define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL)
-#define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0)
-#define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1)
-#define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG)
-#define VERT_BIT_SIX (1 << VERT_ATTRIB_SIX)
-#define VERT_BIT_SEVEN (1 << VERT_ATTRIB_SEVEN)
-#define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0)
-#define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1)
-#define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2)
-#define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3)
-#define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4)
-#define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5)
-#define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6)
-#define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7)
-#define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0)
-#define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1)
-#define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2)
-#define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3)
+#define VERT_BIT_POS (1 << VERT_ATTRIB_POS)
+#define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT)
+#define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL)
+#define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0)
+#define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1)
+#define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG)
+#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX)
+#define VERT_BIT_SEVEN (1 << VERT_ATTRIB_SEVEN)
+#define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0)
+#define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1)
+#define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2)
+#define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3)
+#define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4)
+#define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5)
+#define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6)
+#define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7)
+#define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0)
+#define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1)
+#define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2)
+#define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3)
+#define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4)
+#define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5)
+#define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6)
+#define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7)
+#define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8)
+#define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9)
+#define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10)
+#define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11)
+#define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12)
+#define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13)
+#define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14)
+#define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15)
#define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u)))
#define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g)))
/*@}*/
+/**
+ * GLSL allows shader writers to allocate vertex result attributes (varyings) in
+ * single float component granularity. This is in contrast to vertex / fragment
+ * programs, where result attributes (actually texcoords) were allocated
+ * in 4-component vectors of floats granularity.
+ * For performance reasons, it would be optimal to stick with this scheme on a scalar
+ * processor. Varyings will likely be allocated as 3-component vectors, so statistically
+ * we win 2 floats.
+ * The constant VARYINGS_PER_VECTOR tells us how much of float components we pack into
+ * one result vector. For scalar processor it would be 1, for vector processor - 4.
+ *
+ * NOTE: Currently we pack varyings into vertex attributes.
+ */
+#define VARYINGS_PER_VECTOR 2
+#define VARYING_EMIT_STYLE EMIT_2F
+#define MAX_VARYING_VECTORS ((MAX_VARYING_FLOATS + VARYINGS_PER_VECTOR - 1) / VARYINGS_PER_VECTOR)
+
/**
* Indexes for vertex program result attributes
*/
#define VERT_RESULT_PSIZ 12
#define VERT_RESULT_BFC0 13
#define VERT_RESULT_BFC1 14
-#define VERT_RESULT_MAX 15
+#define VERT_RESULT_EDGE 15
+#define VERT_RESULT_MAX 16
/*@}*/
#define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
#define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
+/**
+ * Mask of all the color buffer bits (but not accum).
+ */
+#define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
+ BUFFER_BIT_BACK_LEFT | \
+ BUFFER_BIT_FRONT_RIGHT | \
+ BUFFER_BIT_BACK_RIGHT | \
+ BUFFER_BIT_AUX0 | \
+ BUFFER_BIT_AUX1 | \
+ BUFFER_BIT_AUX2 | \
+ BUFFER_BIT_AUX3 | \
+ BUFFER_BIT_COLOR0 | \
+ BUFFER_BIT_COLOR1 | \
+ BUFFER_BIT_COLOR2 | \
+ BUFFER_BIT_COLOR3 | \
+ BUFFER_BIT_COLOR4 | \
+ BUFFER_BIT_COLOR5 | \
+ BUFFER_BIT_COLOR6 | \
+ BUFFER_BIT_COLOR7)
+
+
+
/**
* Data structure for color tables
GLfloat EyePosition[4]; /**< position in eye coordinates */
GLfloat EyeDirection[4]; /**< spotlight dir in eye coordinates */
GLfloat SpotExponent;
- GLfloat SpotCutoff; /**< in degrees */\r
+ GLfloat SpotCutoff; /**< in degrees */
GLfloat _CosCutoffNeg; /**< = cos(SpotCutoff) */
GLfloat _CosCutoff; /**< = MAX(0, cos(SpotCutoff)) */
GLfloat ConstantAttenuation;
struct gl_current_attrib
{
/**
- * \name Values valid only when FLUSH_VERTICES has been called.
+ * \name Current vertex attributes.
+ * \note Values are valid only after FLUSH_VERTICES has been called.
*/
/*@{*/
- GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Current vertex attributes
- * indexed by VERT_ATTRIB_* */
- GLfloat Index; /**< Current color index */
- GLboolean EdgeFlag; /**< Current edge flag */
+ GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Position, color, texcoords, etc */
+ GLfloat Index; /**< Current color index */
+ GLboolean EdgeFlag; /**< Current edge flag */
/*@}*/
/**
- * \name Values are always valid.
- *
- * \note BTW, note how similar this set of attributes is to the SWvertex
- * data type in the software rasterizer...
+ * \name Current raster position attributes (always valid).
+ * \note This set of attributes is very similar to the SWvertex struct.
*/
/*@{*/
- GLfloat RasterPos[4]; /**< Current raster position */
- GLfloat RasterDistance; /**< Current raster distance */
- GLfloat RasterColor[4]; /**< Current raster color */
- GLfloat RasterSecondaryColor[4]; /**< Current raster secondary color */
- GLfloat RasterIndex; /**< Current raster index */
- GLfloat RasterTexCoords[MAX_TEXTURE_UNITS][4];/**< Current raster texcoords */
- GLboolean RasterPosValid; /**< Raster pos valid flag */
+ GLfloat RasterPos[4];
+ GLfloat RasterDistance;
+ GLfloat RasterColor[4];
+ GLfloat RasterSecondaryColor[4];
+ GLfloat RasterIndex;
+ GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4];
+ GLboolean RasterPosValid;
/*@}*/
};
GLfloat Index; /**< Fog index */
GLenum Mode; /**< Fog mode */
GLboolean ColorSumEnabled;
- GLenum FogCoordinateSource; /**< GL_EXT_fog_coord */\r
+ GLenum FogCoordinateSource; /**< GL_EXT_fog_coord */
GLfloat _Scale; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
};
GLfloat MinSize, MaxSize; /**< GL_EXT_point_parameters */
GLfloat Threshold; /**< GL_EXT_point_parameters */
GLboolean _Attenuated; /**< True if Params != [1, 0, 0] */
- GLboolean PointSprite; /**< GL_NV_point_sprite / GL_NV_point_sprite */
- GLboolean CoordReplace[MAX_TEXTURE_UNITS]; /**< GL_NV/ARB_point_sprite */
+ GLboolean PointSprite; /**< GL_NV/ARB_point_sprite */
+ GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite */
GLenum SpriteRMode; /**< GL_NV_point_sprite (only!) */
GLenum SpriteOrigin; /**< GL_ARB_point_sprite */
};
GLint col, GLint row, GLint img,
const void *texel);
+
/**
- * TexImage store function. This is called by the glTex[Sub]Image
- * functions and is responsible for converting the user-specified texture
- * image into a specific (hardware) image format.
+ * This macro defines the (many) parameters to the texstore functions.
+ * \param dims either 1 or 2 or 3
+ * \param baseInternalFormat user-specified base internal format
+ * \param dstFormat destination Mesa texture format
+ * \param dstAddr destination image address
+ * \param dstX/Y/Zoffset destination x/y/z offset (ala TexSubImage), in texels
+ * \param dstRowStride destination image row stride, in bytes
+ * \param dstImageOffsets offset of each 2D slice within 3D texture, in texels
+ * \param srcWidth/Height/Depth source image size, in pixels
+ * \param srcFormat incoming image format
+ * \param srcType incoming image data type
+ * \param srcAddr source image address
+ * \param srcPacking source image packing parameters
*/
-typedef GLboolean (*StoreTexImageFunc)(GLcontext *ctx, GLuint dims,
- GLenum baseInternalFormat,
- const struct gl_texture_format *dstFormat,
- GLvoid *dstAddr,
- GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
- GLint dstRowStride, GLint dstImageStride,
- GLint srcWidth, GLint srcHeight, GLint srcDepth,
- GLenum srcFormat, GLenum srcType,
- const GLvoid *srcAddr,
- const struct gl_pixelstore_attrib *srcPacking);
+#define TEXSTORE_PARAMS \
+ GLcontext *ctx, GLuint dims, \
+ GLenum baseInternalFormat, \
+ const struct gl_texture_format *dstFormat, \
+ GLvoid *dstAddr, \
+ GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, \
+ GLint dstRowStride, const GLuint *dstImageOffsets, \
+ GLint srcWidth, GLint srcHeight, GLint srcDepth, \
+ GLenum srcFormat, GLenum srcType, \
+ const GLvoid *srcAddr, \
+ const struct gl_pixelstore_attrib *srcPacking
+/**
+ * Texture image storage function.
+ */
+typedef GLboolean (*StoreTexImageFunc)(TEXSTORE_PARAMS);
+
+
/**
* Texture format record
*/
};
+#define MAX_3D_TEXTURE_SIZE (1 << (MAX_3D_TEXTURE_LEVELS - 1))
+
/**
* Texture image state. Describes the dimensions of a texture image,
* the texel format and pointers to Texel Fetch functions.
GLuint Width; /**< = 2^WidthLog2 + 2*Border */
GLuint Height; /**< = 2^HeightLog2 + 2*Border */
GLuint Depth; /**< = 2^DepthLog2 + 2*Border */
- GLuint RowStride; /**< == Width unless IsClientData and padded */
GLuint Width2; /**< = Width - 2*Border */
GLuint Height2; /**< = Height - 2*Border */
GLuint Depth2; /**< = Depth - 2*Border */
GLfloat WidthScale; /**< used for mipmap LOD computation */
GLfloat HeightScale; /**< used for mipmap LOD computation */
GLfloat DepthScale; /**< used for mipmap LOD computation */
- GLvoid *Data; /**< Image data, accessed via FetchTexel() */
GLboolean IsClientData; /**< Data owned by client? */
GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */
GLboolean IsCompressed; /**< GL_ARB_texture_compression */
GLuint CompressedSize; /**< GL_ARB_texture_compression */
+ GLuint RowStride; /**< == Width unless IsClientData and padded */
+ GLuint *ImageOffsets; /**< if 3D texture: array [Depth] of offsets to
+ each 2D slice in 'Data', in texels */
+ GLvoid *Data; /**< Image data, accessed via FetchTexel() */
+
/**
* \name For device driver:
*/
*/
struct gl_array_attrib
{
- struct gl_client_array Vertex; /**< client data descriptors */
+ /** Conventional vertex arrays */
+ /*@{*/
+ struct gl_client_array Vertex;
struct gl_client_array Normal;
struct gl_client_array Color;
struct gl_client_array SecondaryColor;
struct gl_client_array Index;
struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS];
struct gl_client_array EdgeFlag;
+ /*@}*/
- struct gl_client_array VertexAttrib[VERT_ATTRIB_MAX]; /**< GL_NV_vertex_program */
+ /** Generic arrays for vertex programs/shaders; */
+ struct gl_client_array VertexAttrib[VERT_ATTRIB_MAX];
GLint ActiveTexture; /**< Client Active Texture */
GLuint LockFirst; /**< GL_EXT_compiled_vertex_array */
GLuint LockCount; /**< GL_EXT_compiled_vertex_array */
- GLbitfield _Enabled; /**< _NEW_ARRAY_* - bit set if array enabled */
- GLbitfield NewState; /**< _NEW_ARRAY_* */
+ GLbitfield _Enabled; /**< mask of _NEW_ARRAY_* values */
+ GLbitfield NewState; /**< mask of _NEW_ARRAY_* values */
#if FEATURE_ARB_vertex_buffer_object
struct gl_buffer_object *NullBufferObj;
*/
struct gl_shader_objects_state
{
- struct gl2_program_intf **CurrentProgram;\r
- GLboolean _VertexShaderPresent;\r
+ struct gl2_program_intf **CurrentProgram;
+ GLboolean _VertexShaderPresent;
GLboolean _FragmentShaderPresent;
};
*/
struct gl_renderbuffer
{
+ _glthread_Mutex Mutex; /**< for thread safety */
+ GLuint ClassID; /**< Useful for drivers */
GLuint Name;
GLint RefCount;
GLuint Width, Height;
- GLenum InternalFormat; /* The user-specified value */
- GLenum _BaseFormat; /* Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or */
- /* GL_STENCIL_INDEX. */
- GLenum DataType; /* Type of values passed to the Get/Put functions */
- GLubyte RedBits; /**< Bits per image component */
+ GLenum InternalFormat; /**< The user-specified format */
+ GLenum _ActualFormat; /**< The driver-chosen format */
+ GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
+ GL_STENCIL_INDEX. */
+ GLenum DataType; /**< Type of values passed to the Get/Put functions */
+ GLubyte RedBits; /**< Bits of red per pixel */
GLubyte GreenBits;
GLubyte BlueBits;
GLubyte AlphaBits;
*/
struct gl_framebuffer
{
+ _glthread_Mutex Mutex; /**< for thread safety */
GLuint Name; /* if zero, this is a window system framebuffer */
GLint RefCount;
- GLvisual Visual; /**< The corresponding visual */
+ GLvisual Visual; /**< The framebuffer's visual.
+ Immutable if this is a window system buffer.
+ Computed from attachments if user-made FBO. */
GLboolean Initialized;
GLint MaxTextureRectSize; /* GL_NV_texture_rectangle */
GLuint MaxTextureCoordUnits;
GLuint MaxTextureImageUnits;
- GLuint MaxTextureUnits; /* = MAX(CoordUnits, ImageUnits) */
+ GLuint MaxTextureUnits; /* = MIN(CoordUnits, ImageUnits) */
GLfloat MaxTextureMaxAnisotropy; /* GL_EXT_texture_filter_anisotropic */
GLfloat MaxTextureLodBias; /* GL_EXT_texture_lod_bias */
GLuint MaxArrayLockSize;
#define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0
#define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1
#define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG
-#define _NEW_ARRAY_INDEX VERT_BIT_SIX
+#define _NEW_ARRAY_INDEX VERT_BIT_COLOR_INDEX
#define _NEW_ARRAY_EDGEFLAG VERT_BIT_SEVEN
#define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0
#define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1
GLfloat _ModelViewInvScale;
GLboolean _NeedEyeCoords;
GLboolean _ForceEyeCoords;
- GLboolean _RotateMode;
GLenum _CurrentProgram; /* currently executing program */
struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */
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