-/* $Id: dd.h,v 1.2 1999/09/18 20:41:22 keithw Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.1
+ * Version: 3.3
*
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2000 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"),
* The optional functions provide ways to take advantage of special hardware
* or optimized algorithms.
*
- * The function pointers in the dd_function_table struct are first
- * initialized in the "MakeCurrent" function. The "MakeCurrent" function
- * is a little different in each device driver. See the X/Mesa, GLX, or
- * OS/Mesa drivers for examples.
+ * The function pointers in the dd_function_table struct should first be
+ * initialized in the driver's "MakeCurrent" function. The "MakeCurrent"
+ * function is a little different in each device driver. See the X/Mesa,
+ * GLX, or OS/Mesa drivers for examples.
*
* Later, Mesa may call the dd_function_table's UpdateState() function.
* This function should initialize the dd_function_table's pointers again.
* for an example.
*
* For more information about writing a device driver see the ddsample.c
- * file and other device drivers (xmesa[123].c, osmesa.c, etc) for examples.
+ * file and other device drivers (X/xmesa[1234].c, OSMesa/osmesa.c, etc)
+ * for examples.
*
*
* Look below in the dd_function_table struct definition for descriptions
+/* Mask bits sent to the driver Clear() function */
+#define DD_FRONT_LEFT_BIT FRONT_LEFT_BIT /* 1 */
+#define DD_FRONT_RIGHT_BIT FRONT_RIGHT_BIT /* 2 */
+#define DD_BACK_LEFT_BIT BACK_LEFT_BIT /* 4 */
+#define DD_BACK_RIGHT_BIT BACK_RIGHT_BIT /* 8 */
+#define DD_DEPTH_BIT GL_DEPTH_BUFFER_BIT /* 0x00000100 */
+#define DD_STENCIL_BIT GL_STENCIL_BUFFER_BIT /* 0x00000400 */
+#define DD_ACCUM_BIT GL_ACCUM_BUFFER_BIT /* 0x00000200 */
+
/*
*** every device driver. ***
**********************************************************************/
- const char * (*RendererString)(void);
- /*
- * Return a string which uniquely identifies this device driver.
- * The string should contain no whitespace. Examples: "X11" "OffScreen"
- * "MSWindows" "SVGA".
- * NOTE: This function will be obsolete in favor of GetString in the future!
+ const GLubyte * (*GetString)( GLcontext *ctx, GLenum name );
+ /* Return a string as needed by glGetString().
+ * Only the GL_RENDERER token must be implemented. Otherwise,
+ * NULL can be returned.
*/
void (*UpdateState)( GLcontext *ctx );
void (*ClearIndex)( GLcontext *ctx, GLuint index );
/*
* Called whenever glClearIndex() is called. Set the index for clearing
- * the color buffer.
+ * the color buffer when in color index mode.
*/
void (*ClearColor)( GLcontext *ctx, GLubyte red, GLubyte green,
GLubyte blue, GLubyte alpha );
/*
* Called whenever glClearColor() is called. Set the color for clearing
- * the color buffer.
+ * the color buffer when in RGBA mode.
*/
GLbitfield (*Clear)( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint x, GLint y, GLint width, GLint height );
/* Clear the color/depth/stencil/accum buffer(s).
- * 'mask' indicates which buffers need to be cleared. Return a bitmask
- * indicating which buffers weren't cleared by the driver function.
- * If 'all' is true then the clear the whole buffer, else clear the
- * region defined by (x,y,width,height).
+ * 'mask' is a bitmask of the DD_*_BIT values defined above that indicates
+ * which buffers need to be cleared. The driver should clear those
+ * buffers then return a new bitmask indicating which buffers should be
+ * cleared by software Mesa.
+ * If 'all' is true then the clear the whole buffer, else clear only the
+ * region defined by (x,y,width,height).
+ * This function must obey the glColorMask, glIndexMask and glStencilMask
+ * settings! Software Mesa can do masked clears if the device driver can't.
*/
void (*Index)( GLcontext *ctx, GLuint index );
/*
* Sets current color index for drawing flat-shaded primitives.
+ * This index should also be used in the "mono" drawing functions.
*/
void (*Color)( GLcontext *ctx,
GLubyte red, GLubyte green, GLubyte glue, GLubyte alpha );
/*
* Sets current color for drawing flat-shaded primitives.
+ * This color should also be used in the "mono" drawing functions.
*/
- GLboolean (*SetBuffer)( GLcontext *ctx, GLenum buffer );
+ GLboolean (*SetDrawBuffer)( GLcontext *ctx, GLenum buffer );
/*
- * Selects the color buffer(s) for reading and writing.
+ * Specifies the current buffer for writing.
* The following values must be accepted when applicable:
* GL_FRONT_LEFT - this buffer always exists
* GL_BACK_LEFT - when double buffering
* GL_NONE - disable buffer write in device driver.
*/
- void (*GetBufferSize)( GLcontext *ctx,
- GLuint *width, GLuint *height );
+ void (*SetReadBuffer)( GLcontext *ctx, GLframebuffer *colorBuffer,
+ GLenum buffer );
+ /*
+ * Specifies the current buffer for reading.
+ * colorBuffer will be one of:
+ * GL_FRONT_LEFT - this buffer always exists
+ * GL_BACK_LEFT - when double buffering
+ * GL_FRONT_RIGHT - when using stereo
+ * GL_BACK_RIGHT - when using stereo and double buffering
+ */
+
+ void (*GetBufferSize)( GLcontext *ctx, GLuint *width, GLuint *height );
/*
* Returns the width and height of the current color buffer.
*/
void (*WriteRGBSpan)( const GLcontext *ctx,
GLuint n, GLint x, GLint y,
CONST GLubyte rgb[][3], const GLubyte mask[] );
- /* Write a horizontal run of RGB[A] pixels. The later version is only
- * used to accelerate GL_RGB, GL_UNSIGNED_BYTE glDrawPixels() calls.
+ /* Write a horizontal run of RGBA or RGB pixels.
+ * If mask is NULL, draw all pixels.
+ * If mask is not null, only draw pixel [i] when mask [i] is true.
*/
void (*WriteMonoRGBASpan)( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte mask[] );
- /* Write a horizontal run of mono-RGBA pixels.
+ /* Write a horizontal run of RGBA pixels all with the color last
+ * specified by the Color function.
*/
void (*WriteRGBAPixels)( const GLcontext *ctx,
const GLuint index[], const GLubyte mask[] );
void (*WriteCI8Span)( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte index[], const GLubyte mask[] );
- /* Write a horizontal run of CI pixels. 32 or 8bpp.
+ /* Write a horizontal run of CI pixels. One function is for 32bpp
+ * indexes and the other for 8bpp pixels (the common case). You mus
+ * implement both for color index mode.
*/
void (*WriteMonoCISpan)( const GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLubyte mask[] );
- /* Write a horizontal run of mono-CI pixels.
+ /* Write a horizontal run of color index pixels using the color index
+ * last specified by the Index() function.
*/
void (*WriteCI32Pixels)( const GLcontext *ctx,
void (*WriteMonoCIPixels)( const GLcontext *ctx,
GLuint n, const GLint x[], const GLint y[],
const GLubyte mask[] );
- /*
- * Write a random array of mono-CI pixels.
+ /* Write a random array of color index pixels using the color index
+ * last specified by the Index() function.
*/
*** fall-back function. ***
**********************************************************************/
- const char * (*ExtensionString)( GLcontext *ctx );
- /* Return a space-separated list of extensions for this driver.
- * NOTE: This function will be obsolete in favor of GetString in the future!
- */
-
- const GLubyte * (*GetString)( GLcontext *ctx, GLenum name );
- /* Return a string as needed by glGetString().
- * NOTE: This will replace the ExtensionString and RendererString
- * functions in the future!
- */
-
void (*Finish)( GLcontext *ctx );
/*
- * Called whenever glFinish() is called.
+ * This is called whenever glFinish() is called.
*/
void (*Flush)( GLcontext *ctx );
/*
- * Called whenever glFlush() is called.
+ * This is called whenever glFlush() is called.
*/
GLboolean (*IndexMask)( GLcontext *ctx, GLuint mask );
/***
*** For supporting hardware Z buffers:
+ *** Either ALL or NONE of these functions must be implemented!
+ *** NOTE that Each depth value is a 32-bit GLuint. If the depth
+ *** buffer is less than 32 bits deep then the extra upperbits are zero.
***/
- void (*AllocDepthBuffer)( GLcontext *ctx );
- /*
- * Called when the depth buffer must be allocated or possibly resized.
+ void (*WriteDepthSpan)( GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLdepth depth[], const GLubyte mask[] );
+ /* Write a horizontal span of values into the depth buffer. Only write
+ * depth[i] value if mask[i] is nonzero.
*/
- GLuint (*DepthTestSpan)( GLcontext *ctx,
- GLuint n, GLint x, GLint y, const GLdepth z[],
- GLubyte mask[] );
- void (*DepthTestPixels)( GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLdepth z[], GLubyte mask[] );
- /*
- * Apply the depth buffer test to an span/array of pixels and return
- * an updated pixel mask. This function is not used when accelerated
- * point, line, polygon functions are used.
+ void (*ReadDepthSpan)( GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLdepth depth[] );
+ /* Read a horizontal span of values from the depth buffer.
*/
- void (*ReadDepthSpanFloat)( GLcontext *ctx,
- GLuint n, GLint x, GLint y, GLfloat depth[]);
- void (*ReadDepthSpanInt)( GLcontext *ctx,
- GLuint n, GLint x, GLint y, GLdepth depth[] );
- /*
- * Return depth values as integers for glReadPixels.
- * Floats should be returned in the range [0,1].
- * Ints (GLdepth) values should be in the range [0,MAXDEPTH].
+
+ void (*WriteDepthPixels)( GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ const GLdepth depth[], const GLubyte mask[] );
+ /* Write an array of randomly positioned depth values into the
+ * depth buffer. Only write depth[i] value if mask[i] is nonzero.
+ */
+
+ void (*ReadDepthPixels)( GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ GLdepth depth[] );
+ /* Read an array of randomly positioned depth values from the depth buffer.
*/
+
/***
- *** Accelerated point, line, polygon, glDrawPixels and glBitmap functions:
+ *** For supporting hardware stencil buffers:
+ *** Either ALL or NONE of these functions must be implemented!
***/
- points_func PointsFunc;
- line_func LineFunc;
- triangle_func TriangleFunc;
- quad_func QuadFunc;
- rect_func RectFunc;
-
+ void (*WriteStencilSpan)( GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLstencil stencil[], const GLubyte mask[] );
+ /* Write a horizontal span of stencil values into the stencil buffer.
+ * If mask is NULL, write all stencil values.
+ * Else, only write stencil[i] if mask[i] is non-zero.
+ */
+
+ void (*ReadStencilSpan)( GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLstencil stencil[] );
+ /* Read a horizontal span of stencil values from the stencil buffer.
+ */
+
+ void (*WriteStencilPixels)( GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ const GLstencil stencil[],
+ const GLubyte mask[] );
+ /* Write an array of stencil values into the stencil buffer.
+ * If mask is NULL, write all stencil values.
+ * Else, only write stencil[i] if mask[i] is non-zero.
+ */
+
+ void (*ReadStencilPixels)( GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ GLstencil stencil[] );
+ /* Read an array of stencil values from the stencil buffer.
+ */
+
+
+ /***
+ *** glDraw/Read/CopyPixels and glBitmap functions:
+ ***/
GLboolean (*DrawPixels)( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *unpack,
const GLvoid *pixels );
- /* Device driver hook for optimized glDrawPixels. 'unpack' describes how
- * to unpack the source image data.
+ /* This is called by glDrawPixels.
+ * 'unpack' describes how to unpack the source image data.
+ * Return GL_TRUE if the driver succeeds, return GL_FALSE if core Mesa
+ * must do the job.
+ */
+
+ GLboolean (*ReadPixels)( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ GLvoid *dest );
+ /* Called by glReadPixels.
+ * Return GL_TRUE if operation completed, else return GL_FALSE.
+ * This function must respect all glPixelTransfer settings.
+ */
+
+ GLboolean (*CopyPixels)( GLcontext *ctx,
+ GLint srcx, GLint srcy,
+ GLsizei width, GLsizei height,
+ GLint dstx, GLint dsty, GLenum type );
+ /* Do a glCopyPixels. Return GL_TRUE if operation completed, else
+ * return GL_FALSE. This function must respect all rasterization
+ * state, glPixelTransfer, glPixelZoom, etc.
*/
GLboolean (*Bitmap)( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
const struct gl_pixelstore_attrib *unpack,
const GLubyte *bitmap );
- /* Device driver hook for optimized glBitmap. 'unpack' describes how
- * to unpack the source image data.
+ /* This is called by glBitmap. Works the same as DrawPixels, above.
+ */
+
+
+ /***
+ *** Texture mapping functions:
+ ***/
+
+ void (*TexImage)( GLcontext *ctx, GLenum target,
+ struct gl_texture_object *tObj, GLint level,
+ GLint internalFormat,
+ const struct gl_texture_image *image );
+ /* XXX this function is obsolete */
+ /* Called whenever a texture object's image is changed.
+ * texObject is the number of the texture object being changed.
+ * level indicates the mipmap level.
+ * internalFormat is the format in which the texture is to be stored.
+ * image is a pointer to a gl_texture_image struct which contains
+ * the actual image data.
+ */
+
+ void (*TexSubImage)( GLcontext *ctx, GLenum target,
+ struct gl_texture_object *tObj, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLint internalFormat,
+ const struct gl_texture_image *image );
+ /* XXX this function is obsolete */
+ /* Called from glTexSubImage() to define a sub-region of a texture.
+ */
+
+
+ GLboolean (*TexImage1D)( GLcontext *ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage,
+ GLboolean *retainInternalCopy );
+ GLboolean (*TexImage2D)( GLcontext *ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage,
+ GLboolean *retainInternalCopy );
+ GLboolean (*TexImage3D)( GLcontext *ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage,
+ GLboolean *retainInternalCopy );
+ /* Called by glTexImage1/2/3D.
+ * Will not be called if any glPixelTransfer operations are enabled.
+ * Arguments:
+ * <target>, <level>, <format>, <type> and <pixels> are user specified.
+ * <packing> indicates the image packing of pixels.
+ * <texObj> is the target texture object.
+ * <texImage> is the target texture image. It will have the texture
+ * width, height, depth, border and internalFormat information.
+ * <retainInternalCopy> is returned by this function and indicates whether
+ * core Mesa should keep an internal copy of the texture image.
+ * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
+ * should do the job. If GL_FALSE is returned, this function will be
+ * called a second time after the texture image has been unpacked into
+ * GLubytes. It may be easier for the driver to handle then.
+ */
+
+ GLboolean (*TexSubImage1D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format, GLenum type,
+ const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage );
+ GLboolean (*TexSubImage2D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage );
+ GLboolean (*TexSubImage3D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
+ GLenum format, GLenum type,
+ const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage );
+ /* Called by glTexSubImage1/2/3D.
+ * Will not be called if any glPixelTransfer operations are enabled.
+ * Arguments:
+ * <target>, <level>, <xoffset>, <yoffset>, <zoffset>, <width>, <height>,
+ * <depth>, <format>, <type> and <pixels> are user specified.
+ * <packing> indicates the image packing of pixels.
+ * <texObj> is the target texture object.
+ * <texImage> is the target texture image. It will have the texture
+ * width, height, border and internalFormat information.
+ * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
+ * should do the job. If GL_FALSE is returned, then TexImage1/2/3D will
+ * be called with the complete texture image.
+ */
+
+ GLboolean (*CopyTexImage1D)( GLcontext *ctx, GLenum target, GLint level,
+ GLenum internalFormat, GLint x, GLint y,
+ GLsizei width, GLint border );
+ GLboolean (*CopyTexImage2D)( GLcontext *ctx, GLenum target, GLint level,
+ GLenum internalFormat, GLint x, GLint y,
+ GLsizei width, GLsizei height, GLint border );
+ /* Called by glCopyTexImage1D and glCopyTexImage2D.
+ * Will not be called if any glPixelTransfer operations are enabled.
+ * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
+ * should do the job.
+ */
+
+ GLboolean (*CopyTexSubImage1D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset,
+ GLint x, GLint y, GLsizei width );
+ GLboolean (*CopyTexSubImage2D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height );
+ GLboolean (*CopyTexSubImage3D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height );
+ /* Called by glCopyTexSubImage1/2/3D.
+ * Will not be called if any glPixelTransfer operations are enabled.
+ * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
+ * should do the job.
+ */
+
+ GLvoid *(*GetTexImage)( GLcontext *ctx, GLenum target, GLint level,
+ const struct gl_texture_object *texObj,
+ GLenum *formatOut, GLenum *typeOut,
+ GLboolean *freeImageOut );
+ /* Called by glGetTexImage or by core Mesa when a texture image
+ * is needed for software fallback rendering.
+ * Return the address of the texture image or NULL if failure.
+ * The image must be tightly packed (i.e. row stride = image width)
+ * Return the image's format and type in formatOut and typeOut.
+ * The format and type must be values which are accepted by glTexImage.
+ * Set the freeImageOut flag if the returned image should be deallocated
+ * with FREE() when finished.
+ * The size of the image can be deduced from the target and level.
+ * Core Mesa will perform any image format/type conversions that are needed.
+ */
+
+ GLboolean (*CompressedTexImage1D)( GLcontext *ctx, GLenum target,
+ GLint level, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage,
+ GLboolean *retainInternalCopy);
+ GLboolean (*CompressedTexImage2D)( GLcontext *ctx, GLenum target,
+ GLint level, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage,
+ GLboolean *retainInternalCopy);
+ GLboolean (*CompressedTexImage3D)( GLcontext *ctx, GLenum target,
+ GLint level, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage,
+ GLboolean *retainInternalCopy);
+ /* Called by glCompressedTexImage1/2/3D.
+ * Arguments:
+ * <target>, <level>, <internalFormat>, <data> are user specified.
+ * <texObj> is the target texture object.
+ * <texImage> is the target texture image. It will have the texture
+ * width, height, depth, border and internalFormat information.
+ * <retainInternalCopy> is returned by this function and indicates whether
+ * core Mesa should keep an internal copy of the texture image.
+ * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
+ * should do the job.
+ */
+
+
+ void (*TexEnv)( GLcontext *ctx, GLenum target, GLenum pname,
+ const GLfloat *param );
+ /* Called by glTexEnv*().
+ */
+
+ void (*TexParameter)( GLcontext *ctx, GLenum target,
+ struct gl_texture_object *texObj,
+ GLenum pname, const GLfloat *params );
+ /* Called by glTexParameter*().
+ * <target> is user specified
+ * <texObj> the texture object to modify
+ * <pname> is one of GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MAG_FILTER,
+ * GL_TEXTURE_WRAP_[STR], or GL_TEXTURE_BORDER_COLOR.
+ * <params> is user specified.
+ */
+
+ void (*BindTexture)( GLcontext *ctx, GLenum target,
+ struct gl_texture_object *tObj );
+ /* Called by glBindTexture().
+ */
+
+ void (*DeleteTexture)( GLcontext *ctx, struct gl_texture_object *tObj );
+ /* Called when a texture object is about to be deallocated. Driver
+ * should free anything attached to the DriverData pointers.
+ */
+
+ GLboolean (*IsTextureResident)( GLcontext *ctx,
+ struct gl_texture_object *t );
+ /* Called by glAreTextureResident().
+ */
+
+ void (*PrioritizeTexture)( GLcontext *ctx, struct gl_texture_object *t,
+ GLclampf priority );
+ /* Called by glPrioritizeTextures().
+ */
+
+ void (*ActiveTexture)( GLcontext *ctx, GLuint texUnitNumber );
+ /* Called by glActiveTextureARB to set current texture unit.
+ */
+
+ void (*UpdateTexturePalette)( GLcontext *ctx,
+ struct gl_texture_object *tObj );
+ /* Called when the texture's color lookup table is changed.
+ * If tObj is NULL then the shared texture palette ctx->Texture.Palette
+ * is to be updated.
*/
+
+
+ /***
+ *** Accelerated point, line, polygon, glDrawPixels and glBitmap functions:
+ ***/
+
+ points_func PointsFunc;
+ line_func LineFunc;
+ triangle_func TriangleFunc;
+ quad_func QuadFunc;
+ rect_func RectFunc;
+
+
+ /***
+ *** Transformation/Rendering functions
+ ***/
+
void (*RenderStart)( GLcontext *ctx );
void (*RenderFinish)( GLcontext *ctx );
/* KW: These replace Begin and End, and have more relaxed semantics.
* Note: Deprecated in favour of RegisterPipelineStages, below.
*/
-
render_func *RenderVBClippedTab;
render_func *RenderVBCulledTab;
render_func *RenderVBRawTab;
* gl_render_vb() function in vbrender.c for more details.
*/
-
void (*ReducedPrimitiveChange)( GLcontext *ctx, GLenum primitive );
/* If registered, this will be called when rendering transitions between
* points, lines and triangles. It is not called on transitions between
* implement DD_TRI_OFFSET.
*/
-
GLboolean (*MultipassFunc)( struct vertex_buffer *VB, GLuint passno );
/* Driver may request additional render passes by returning GL_TRUE
* when this function is called. This function will be called
* This function will be first invoked with passno == 1.
*/
- /***
- *** Texture mapping functions:
- ***/
-
- void (*TexEnv)( GLcontext *ctx, GLenum pname, const GLfloat *param );
- /*
- * Called whenever glTexEnv*() is called.
- * Pname will be one of GL_TEXTURE_ENV_MODE or GL_TEXTURE_ENV_COLOR.
- * If pname is GL_TEXTURE_ENV_MODE then param will be one
- * of GL_MODULATE, GL_BLEND, GL_DECAL, or GL_REPLACE.
- */
-
- void (*TexImage)( GLcontext *ctx, GLenum target,
- struct gl_texture_object *tObj, GLint level,
- GLint internalFormat,
- const struct gl_texture_image *image );
- /*
- * Called whenever a texture object's image is changed.
- * texObject is the number of the texture object being changed.
- * level indicates the mipmap level.
- * internalFormat is the format in which the texture is to be stored.
- * image is a pointer to a gl_texture_image struct which contains
- * the actual image data.
- */
-
- void (*TexSubImage)( GLcontext *ctx, GLenum target,
- struct gl_texture_object *tObj, GLint level,
- GLint xoffset, GLint yoffset,
- GLsizei width, GLsizei height,
- GLint internalFormat,
- const struct gl_texture_image *image );
- /*
- * Called from glTexSubImage() to define a sub-region of a texture.
- */
-
- void (*TexParameter)( GLcontext *ctx, GLenum target,
- struct gl_texture_object *tObj,
- GLenum pname, const GLfloat *params );
- /*
- * Called whenever glTexParameter*() is called.
- * target is GL_TEXTURE_1D or GL_TEXTURE_2D
- * texObject is the texture object to modify
- * pname is one of GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MAG_FILTER,
- * GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T, or GL_TEXTURE_BORDER_COLOR.
- * params is dependant on pname. See man glTexParameter.
- */
-
- void (*BindTexture)( GLcontext *ctx, GLenum target,
- struct gl_texture_object *tObj );
- /*
- * Called whenever glBindTexture() is called. This specifies which
- * texture is to be the current one. No dirty flags will be set.
- */
-
- void (*DeleteTexture)( GLcontext *ctx, struct gl_texture_object *tObj );
- /*
- * Called when a texture object is about to be deallocated. Driver
- * should free anything attached to the DriverData pointers.
- */
-
- void (*UpdateTexturePalette)( GLcontext *ctx,
- struct gl_texture_object *tObj );
- /*
- * Called when the texture's color lookup table is changed.
- * If tObj is NULL then the shared texture palette ctx->Texture.Palette
- * was changed.
- */
-
- void (*UseGlobalTexturePalette)( GLcontext *ctx, GLboolean state );
- /*
- * Called via glEnable/Disable(GL_SHARED_TEXTURE_PALETTE_EXT)
- */
-
- void (*ActiveTexture)( GLcontext *ctx, GLuint texUnitNumber );
- /*
- * Called by glActiveTextureARB to set current texture unit.
- */
-
-
/***
*** NEW in Mesa 3.x
***/
* the driver's UpdateState() function must do.
*/
void (*AlphaFunc)(GLcontext *ctx, GLenum func, GLclampf ref);
+ void (*BlendEquation)(GLcontext *ctx, GLenum mode);
void (*BlendFunc)(GLcontext *ctx, GLenum sfactor, GLenum dfactor);
+ void (*BlendFuncSeparate)( GLcontext *ctx, GLenum sfactorRGB,
+ GLenum dfactorRGB, GLenum sfactorA,
+ GLenum dfactorA );
void (*ClearDepth)(GLcontext *ctx, GLclampd d);
void (*CullFace)(GLcontext *ctx, GLenum mode);
void (*FrontFace)(GLcontext *ctx, GLenum mode);
void (*Enable)(GLcontext* ctx, GLenum cap, GLboolean state);
void (*Fogfv)(GLcontext *ctx, GLenum pname, const GLfloat *params);
void (*Hint)(GLcontext *ctx, GLenum target, GLenum mode);
+ void (*Lightfv)(GLcontext *ctx, GLenum light,
+ GLenum pname, const GLfloat *params, GLint nparams );
+ void (*LightModelfv)(GLcontext *ctx, GLenum pname, const GLfloat *params);
+ void (*LineStipple)(GLcontext *ctx, GLint factor, GLushort pattern );
+ void (*LineWidth)(GLcontext *ctx, GLfloat width);
+ void (*LogicOpcode)(GLcontext *ctx, GLenum opcode);
void (*PolygonMode)(GLcontext *ctx, GLenum face, GLenum mode);
+ void (*PolygonStipple)(GLcontext *ctx, const GLubyte *mask );
void (*Scissor)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
void (*ShadeModel)(GLcontext *ctx, GLenum mode);
void (*ClearStencil)(GLcontext *ctx, GLint s);
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