-/* $Id: dd.h,v 1.17 2000/03/07 18:24:49 brianp Exp $ */
/*
* Mesa 3-D graphics library
* 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"),
* 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[],
*/
-
/***
- *** Accelerated point, line, polygon, glDrawPixels and glBitmap functions:
+ *** glDraw/Read/CopyPixels and glBitmap functions:
***/
- points_func PointsFunc;
- line_func LineFunc;
- triangle_func TriangleFunc;
- quad_func QuadFunc;
- rect_func RectFunc;
-
-
GLboolean (*DrawPixels)( GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
/* 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+ /* XXX this function is obsolete */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+ /* XXX this function is obsolete */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.
+ */
+
+ 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 target, GLenum pname,
- const GLfloat *param );
- /*
- * Called whenever glTexEnv*() is called.
- */
-
- 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 (*ActiveTexture)( GLcontext *ctx, GLuint texUnitNumber );
- /*
- * Called by glActiveTextureARB to set current texture unit.
- */
-
-
- GLboolean (*IsTextureResident)( GLcontext *ctx,
- struct gl_texture_object *t );
- /*
- * Allows the driver to implement the AreTexturesResident tests without
- * knowing about Mesa's internal hash tables for textures.
- */
-
- void (*PrioritizeTexture)( GLcontext *ctx,
- struct gl_texture_object *t,
- GLclampf priority );
- /*
- * Notify driver of priority change for a texture.
- */
-
-
-
-
/***
*** NEW in Mesa 3.x
***/
projects / mesa.git / blobdiff