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+/**
+ * \file dd.h
+ * Device driver interfaces.
+ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifndef DD_INCLUDED
+#define DD_INCLUDED
+
+/* THIS FILE ONLY INCLUDED BY mtypes.h !!!!! */
+
+struct gl_pixelstore_attrib;
+struct mesa_display_list;
+
+/**
+ * Device driver function table.
+ * Core Mesa uses these function pointers to call into device drivers.
+ * Most of these functions directly correspond to OpenGL state commands.
+ * Core Mesa will call these functions after error checking has been done
+ * so that the drivers don't have to worry about error testing.
+ *
+ * Vertex transformation/clipping/lighting is patched into the T&L module.
+ * Rasterization functions are patched into the swrast module.
+ *
+ * Note: when new functions are added here, the drivers/common/driverfuncs.c
+ * file should be updated too!!!
+ */
+struct dd_function_table {
+ /**
+ * Return a string as needed by glGetString().
+ *
+ * Only the GL_RENDERER token must be implemented. Otherwise, NULL can be
+ * returned.
+ */
+ const GLubyte * (*GetString)( GLcontext *ctx, GLenum name );
+
+ /**
+ * Notify the driver after Mesa has made some internal state changes.
+ *
+ * This is in addition to any state change callbacks Mesa may already have
+ * made.
+ */
+ void (*UpdateState)( GLcontext *ctx, GLbitfield new_state );
+
+ /**
+ * Get the width and height of the named buffer/window.
+ *
+ * Mesa uses this to determine when the driver's window size has changed.
+ */
+ void (*GetBufferSize)( GLframebuffer *buffer,
+ GLuint *width, GLuint *height );
+
+ /**
+ * Resize the given framebuffer to the given size.
+ */
+ void (*ResizeBuffers)( GLcontext *ctx, GLframebuffer *fb,
+ GLuint width, GLuint height);
+
+ /**
+ * Called whenever an error is generated.
+ *
+ * __GLcontextRec::ErrorValue contains the error value.
+ */
+ void (*Error)( GLcontext *ctx );
+
+ /**
+ * This is called whenever glFinish() is called.
+ */
+ void (*Finish)( GLcontext *ctx );
+
+ /**
+ * This is called whenever glFlush() is called.
+ */
+ void (*Flush)( GLcontext *ctx );
+
+ /**
+ * Clear the color/depth/stencil/accum buffer(s).
+ *
+ * \param mask a bitmask of the DD_*_BIT values defined above that indicates
+ * which buffers need to be cleared.
+ * \param all if true then clear the whole buffer, else clear only the
+ * region defined by <tt>(x, y, width, height)</tt>.
+ *
+ * This function must obey the glColorMask(), glIndexMask() and
+ * glStencilMask() settings!
+ * Software Mesa can do masked clears if the device driver can't.
+ */
+ void (*Clear)( GLcontext *ctx, GLbitfield mask, GLboolean all,
+ GLint x, GLint y, GLint width, GLint height );
+
+
+ /**
+ * \name For hardware accumulation buffer
+ */
+ /*@{*/
+ /**
+ * Execute glAccum command within the given scissor region.
+ */
+ void (*Accum)( GLcontext *ctx, GLenum op, GLfloat value,
+ GLint xpos, GLint ypos, GLint width, GLint height );
+ /*@}*/
+
+
+ /**
+ * \name glDraw(), glRead(), glCopyPixels() and glBitmap() functions
+ */
+ /*@{*/
+
+ /**
+ * This is called by glDrawPixels().
+ *
+ * \p unpack describes how to unpack the source image data.
+ */
+ void (*DrawPixels)( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels );
+
+ /**
+ * Called by glReadPixels().
+ */
+ void (*ReadPixels)( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ GLvoid *dest );
+
+ /**
+ * Do a glCopyPixels().
+ *
+ * This function must respect all rasterization state, glPixelTransfer(),
+ * glPixelZoom(), etc.
+ */
+ void (*CopyPixels)( GLcontext *ctx, GLint srcx, GLint srcy,
+ GLsizei width, GLsizei height,
+ GLint dstx, GLint dsty, GLenum type );
+
+ /**
+ * This is called by glBitmap().
+ *
+ * Works the same as dd_function_table::DrawPixels, above.
+ */
+ void (*Bitmap)( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLubyte *bitmap );
+ /*@}*/
+
+
+ /**
+ * \name Texture image functions
+ */
+ /*@{*/
+
+ /**
+ * Choose texture format.
+ *
+ * This is called by the \c _mesa_store_tex[sub]image[123]d() fallback
+ * functions. The driver should examine \p internalFormat and return a
+ * pointer to an appropriate gl_texture_format.
+ */
+ const struct gl_texture_format *(*ChooseTextureFormat)( GLcontext *ctx,
+ GLint internalFormat, GLenum srcFormat, GLenum srcType );
+
+ /**
+ * Called by glTexImage1D().
+ *
+ * \param target user specified.
+ * \param format user specified.
+ * \param type user specified.
+ * \param pixels user specified.
+ * \param packing indicates the image packing of pixels.
+ * \param texObj is the target texture object.
+ * \param texImage is the target texture image. It will have the texture \p
+ * width, \p height, \p depth, \p border and \p internalFormat information.
+ *
+ * \p retainInternalCopy is returned by this function and indicates whether
+ * core Mesa should keep an internal copy of the texture image.
+ *
+ * Drivers should call a fallback routine from texstore.c if needed.
+ */
+ void (*TexImage1D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint border,
+ 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 glTexImage2D().
+ *
+ * \sa dd_function_table::TexImage1D.
+ */
+ void (*TexImage2D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ 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 glTexImage3D().
+ *
+ * \sa dd_function_table::TexImage1D.
+ */
+ void (*TexImage3D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth, GLint border,
+ 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 glTexSubImage1D().
+ *
+ * \param target user specified.
+ * \param level user specified.
+ * \param xoffset user specified.
+ * \param yoffset user specified.
+ * \param zoffset user specified.
+ * \param width user specified.
+ * \param height user specified.
+ * \param depth user specified.
+ * \param format user specified.
+ * \param type user specified.
+ * \param pixels user specified.
+ * \param packing indicates the image packing of pixels.
+ * \param texObj is the target texture object.
+ * \param texImage is the target texture image. It will have the texture \p
+ * width, \p height, \p border and \p internalFormat information.
+ *
+ * The driver should use a fallback routine from texstore.c if needed.
+ */
+ void (*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 );
+
+ /**
+ * Called by glTexSubImage2D().
+ *
+ * \sa dd_function_table::TexSubImage1D.
+ */
+ void (*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 );
+
+ /**
+ * Called by glTexSubImage3D().
+ *
+ * \sa dd_function_table::TexSubImage1D.
+ */
+ void (*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 glGetTexImage().
+ */
+ void (*GetTexImage)( GLcontext *ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage );
+
+ /**
+ * Called by glCopyTexImage1D().
+ *
+ * Drivers should use a fallback routine from texstore.c if needed.
+ */
+ void (*CopyTexImage1D)( GLcontext *ctx, GLenum target, GLint level,
+ GLenum internalFormat, GLint x, GLint y,
+ GLsizei width, GLint border );
+
+ /**
+ * Called by glCopyTexImage2D().
+ *
+ * Drivers should use a fallback routine from texstore.c if needed.
+ */
+ void (*CopyTexImage2D)( GLcontext *ctx, GLenum target, GLint level,
+ GLenum internalFormat, GLint x, GLint y,
+ GLsizei width, GLsizei height, GLint border );
+
+ /**
+ * Called by glCopyTexSubImage1D().
+ *
+ * Drivers should use a fallback routine from texstore.c if needed.
+ */
+ void (*CopyTexSubImage1D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset,
+ GLint x, GLint y, GLsizei width );
+ /**
+ * Called by glCopyTexSubImage2D().
+ *
+ * Drivers should use a fallback routine from texstore.c if needed.
+ */
+ void (*CopyTexSubImage2D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height );
+ /**
+ * Called by glCopyTexSubImage3D().
+ *
+ * Drivers should use a fallback routine from texstore.c if needed.
+ */
+ void (*CopyTexSubImage3D)( GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height );
+
+ /**
+ * Called by glTexImage[123]D when user specifies a proxy texture
+ * target.
+ *
+ * \return GL_TRUE if the proxy test passes, or GL_FALSE if the test fails.
+ */
+ GLboolean (*TestProxyTexImage)(GLcontext *ctx, GLenum target,
+ GLint level, GLint internalFormat,
+ GLenum format, GLenum type,
+ GLint width, GLint height,
+ GLint depth, GLint border);
+ /*@}*/
+
+
+ /**
+ * \name Compressed texture functions
+ */
+ /*@{*/
+
+ /**
+ * Called by glCompressedTexImage1D().
+ *
+ * \param target user specified.
+ * \param format user specified.
+ * \param type user specified.
+ * \param pixels user specified.
+ * \param packing indicates the image packing of pixels.
+ * \param texObj is the target texture object.
+ * \param texImage is the target texture image. It will have the texture \p
+ * width, \p height, \p depth, \p border and \p internalFormat information.
+ *
+ * \a retainInternalCopy is returned by this function and indicates whether
+ * core Mesa should keep an internal copy of the texture image.
+ */
+ void (*CompressedTexImage1D)( GLcontext *ctx, GLenum target,
+ GLint level, GLint internalFormat,
+ GLsizei width, GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage );
+ /**
+ * Called by glCompressedTexImage2D().
+ *
+ * \sa dd_function_table::CompressedTexImage1D.
+ */
+ void (*CompressedTexImage2D)( GLcontext *ctx, GLenum target,
+ GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage );
+ /**
+ * Called by glCompressedTexImage3D().
+ *
+ * \sa dd_function_table::CompressedTexImage3D.
+ */
+ void (*CompressedTexImage3D)( GLcontext *ctx, GLenum target,
+ GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage );
+
+ /**
+ * Called by glCompressedTexSubImage1D().
+ *
+ * \param target user specified.
+ * \param level user specified.
+ * \param xoffset user specified.
+ * \param yoffset user specified.
+ * \param zoffset user specified.
+ * \param width user specified.
+ * \param height user specified.
+ * \param depth user specified.
+ * \param imageSize user specified.
+ * \param data user specified.
+ * \param texObj is the target texture object.
+ * \param texImage is the target texture image. It will have the texture \p
+ * width, \p height, \p depth, \p border and \p internalFormat information.
+ */
+ void (*CompressedTexSubImage1D)(GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+ /**
+ * Called by glCompressedTexSubImage2D().
+ *
+ * \sa dd_function_table::CompressedTexImage3D.
+ */
+ void (*CompressedTexSubImage2D)(GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLint height,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+ /**
+ * Called by glCompressedTexSubImage3D().
+ *
+ * \sa dd_function_table::CompressedTexImage3D.
+ */
+ void (*CompressedTexSubImage3D)(GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLint height, GLint depth,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+ /**
+ * Called by glGetCompressedTexImage.
+ */
+ void (*GetCompressedTexImage)(GLcontext *ctx, GLenum target, GLint level,
+ GLvoid *img,
+ const struct gl_texture_object *texObj,
+ const struct gl_texture_image *texImage);
+
+ /**
+ * Called to query number of bytes of storage needed to store the
+ * specified compressed texture.
+ */
+ GLuint (*CompressedTextureSize)( GLcontext *ctx, GLsizei width,
+ GLsizei height, GLsizei depth,
+ GLenum format );
+ /*@}*/
+
+ /**
+ * \name Texture object functions
+ */
+ /*@{*/
+
+ /**
+ * Called by glBindTexture().
+ */
+ void (*BindTexture)( GLcontext *ctx, GLenum target,
+ struct gl_texture_object *tObj );
+
+ /**
+ * Called to allocate a new texture object.
+ * A new gl_texture_object should be returned. The driver should
+ * attach to it any device-specific info it needs.
+ */
+ struct gl_texture_object * (*NewTextureObject)( GLcontext *ctx, GLuint name,
+ GLenum target );
+ /**
+ * Called when a texture object is about to be deallocated.
+ *
+ * Driver should delete the gl_texture_object object and anything
+ * hanging off of it.
+ */
+ void (*DeleteTexture)( GLcontext *ctx, struct gl_texture_object *tObj );
+
+ /**
+ * Called to allocate a new texture image object.
+ */
+ struct gl_texture_image * (*NewTextureImage)( GLcontext *ctx );
+
+ /**
+ * Called to free tImage->Data.
+ */
+ void (*FreeTexImageData)( GLcontext *ctx, struct gl_texture_image *tImage );
+
+ /**
+ * Note: no context argument. This function doesn't initially look
+ * like it belongs here, except that the driver is the only entity
+ * that knows for sure how the texture memory is allocated - via
+ * the above callbacks. There is then an argument that the driver
+ * knows what memcpy paths might be fast. Typically this is invoked with
+ *
+ * to -- a pointer into texture memory allocated by NewTextureImage() above.
+ * from -- a pointer into client memory or a mesa temporary.
+ * sz -- nr bytes to copy.
+ */
+ void* (*TextureMemCpy)( void *to, const void *from, size_t sz );
+
+ /**
+ * Called by glAreTextureResident().
+ */
+ GLboolean (*IsTextureResident)( GLcontext *ctx,
+ struct gl_texture_object *t );
+
+ /**
+ * Called by glPrioritizeTextures().
+ */
+ void (*PrioritizeTexture)( GLcontext *ctx, struct gl_texture_object *t,
+ GLclampf priority );
+
+ /**
+ * Called by glActiveTextureARB() to set current texture unit.
+ */
+ void (*ActiveTexture)( GLcontext *ctx, GLuint texUnitNumber );
+
+ /**
+ * Called when the texture's color lookup table is changed.
+ *
+ * If \p tObj is NULL then the shared texture palette
+ * gl_texture_object::Palette is to be updated.
+ */
+ void (*UpdateTexturePalette)( GLcontext *ctx,
+ struct gl_texture_object *tObj );
+ /*@}*/
+
+
+ /**
+ * \name Imaging functionality
+ */
+ /*@{*/
+ void (*CopyColorTable)( GLcontext *ctx,
+ GLenum target, GLenum internalformat,
+ GLint x, GLint y, GLsizei width );
+
+ void (*CopyColorSubTable)( GLcontext *ctx,
+ GLenum target, GLsizei start,
+ GLint x, GLint y, GLsizei width );
+
+ void (*CopyConvolutionFilter1D)( GLcontext *ctx, GLenum target,
+ GLenum internalFormat,
+ GLint x, GLint y, GLsizei width );
+
+ void (*CopyConvolutionFilter2D)( GLcontext *ctx, GLenum target,
+ GLenum internalFormat,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height );
+ /*@}*/
+
+
+ /**
+ * \name Vertex/fragment program functions
+ */
+ /*@{*/
+ /** Bind a vertex/fragment program */
+ void (*BindProgram)(GLcontext *ctx, GLenum target, struct gl_program *prog);
+ /** Allocate a new program */
+ struct gl_program * (*NewProgram)(GLcontext *ctx, GLenum target, GLuint id);
+ /** Delete a program */
+ void (*DeleteProgram)(GLcontext *ctx, struct gl_program *prog);
+ /** Notify driver that a program string has been specified. */
+ void (*ProgramStringNotify)(GLcontext *ctx, GLenum target,
+ struct gl_program *prog);
+
+
+
+ /** Query if program can be loaded onto hardware */
+ GLboolean (*IsProgramNative)(GLcontext *ctx, GLenum target,
+ struct gl_program *prog);
+
+ /*@}*/
+
+
+ /**
+ * \name State-changing functions.
+ *
+ * \note drawing functions are above.
+ *
+ * These functions are called by their corresponding OpenGL API functions.
+ * They are \e also called by the gl_PopAttrib() function!!!
+ * May add more functions like these to the device driver in the future.
+ */
+ /*@{*/
+ /** Specify the alpha test function */
+ void (*AlphaFunc)(GLcontext *ctx, GLenum func, GLfloat ref);
+ /** Set the blend color */
+ void (*BlendColor)(GLcontext *ctx, const GLfloat color[4]);
+ /** Set the blend equation */
+ void (*BlendEquationSeparate)(GLcontext *ctx, GLenum modeRGB, GLenum modeA);
+ /** Specify pixel arithmetic */
+ void (*BlendFuncSeparate)(GLcontext *ctx,
+ GLenum sfactorRGB, GLenum dfactorRGB,
+ GLenum sfactorA, GLenum dfactorA);
+ /** Specify clear values for the color buffers */
+ void (*ClearColor)(GLcontext *ctx, const GLfloat color[4]);
+ /** Specify the clear value for the depth buffer */
+ void (*ClearDepth)(GLcontext *ctx, GLclampd d);
+ /** Specify the clear value for the color index buffers */
+ void (*ClearIndex)(GLcontext *ctx, GLuint index);
+ /** Specify the clear value for the stencil buffer */
+ void (*ClearStencil)(GLcontext *ctx, GLint s);
+ /** Specify a plane against which all geometry is clipped */
+ void (*ClipPlane)(GLcontext *ctx, GLenum plane, const GLfloat *equation );
+ /** Enable and disable writing of frame buffer color components */
+ void (*ColorMask)(GLcontext *ctx, GLboolean rmask, GLboolean gmask,
+ GLboolean bmask, GLboolean amask );
+ /** Cause a material color to track the current color */
+ void (*ColorMaterial)(GLcontext *ctx, GLenum face, GLenum mode);
+ /** Specify whether front- or back-facing facets can be culled */
+ void (*CullFace)(GLcontext *ctx, GLenum mode);
+ /** Define front- and back-facing polygons */
+ void (*FrontFace)(GLcontext *ctx, GLenum mode);
+ /** Specify the value used for depth buffer comparisons */
+ void (*DepthFunc)(GLcontext *ctx, GLenum func);
+ /** Enable or disable writing into the depth buffer */
+ void (*DepthMask)(GLcontext *ctx, GLboolean flag);
+ /** Specify mapping of depth values from NDC to window coordinates */
+ void (*DepthRange)(GLcontext *ctx, GLclampd nearval, GLclampd farval);
+ /** Specify the current buffer for writing */
+ void (*DrawBuffer)( GLcontext *ctx, GLenum buffer );
+ /** Specify the buffers for writing for fragment programs*/
+ void (*DrawBuffers)( GLcontext *ctx, GLsizei n, const GLenum *buffers );
+ /** Enable or disable server-side gl capabilities */
+ void (*Enable)(GLcontext *ctx, GLenum cap, GLboolean state);
+ /** Specify fog parameters */
+ void (*Fogfv)(GLcontext *ctx, GLenum pname, const GLfloat *params);
+ /** Specify implementation-specific hints */
+ void (*Hint)(GLcontext *ctx, GLenum target, GLenum mode);
+ /** Control the writing of individual bits in the color index buffers */
+ void (*IndexMask)(GLcontext *ctx, GLuint mask);
+ /** Set light source parameters.
+ * Note: for GL_POSITION and GL_SPOT_DIRECTION, params will have already
+ * been transformed to eye-space.
+ */
+ void (*Lightfv)(GLcontext *ctx, GLenum light,
+ GLenum pname, const GLfloat *params );
+ /** Set the lighting model parameters */
+ void (*LightModelfv)(GLcontext *ctx, GLenum pname, const GLfloat *params);
+ /** Specify the line stipple pattern */
+ void (*LineStipple)(GLcontext *ctx, GLint factor, GLushort pattern );
+ /** Specify the width of rasterized lines */
+ void (*LineWidth)(GLcontext *ctx, GLfloat width);
+ /** Specify a logical pixel operation for color index rendering */
+ void (*LogicOpcode)(GLcontext *ctx, GLenum opcode);
+ void (*PointParameterfv)(GLcontext *ctx, GLenum pname,
+ const GLfloat *params);
+ /** Specify the diameter of rasterized points */
+ void (*PointSize)(GLcontext *ctx, GLfloat size);
+ /** Select a polygon rasterization mode */
+ void (*PolygonMode)(GLcontext *ctx, GLenum face, GLenum mode);
+ /** Set the scale and units used to calculate depth values */
+ void (*PolygonOffset)(GLcontext *ctx, GLfloat factor, GLfloat units);
+ /** Set the polygon stippling pattern */
+ void (*PolygonStipple)(GLcontext *ctx, const GLubyte *mask );
+ /* Specifies the current buffer for reading */
+ void (*ReadBuffer)( GLcontext *ctx, GLenum buffer );
+ /** Set rasterization mode */
+ void (*RenderMode)(GLcontext *ctx, GLenum mode );
+ /** Define the scissor box */
+ void (*Scissor)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
+ /** Select flat or smooth shading */
+ void (*ShadeModel)(GLcontext *ctx, GLenum mode);
+ /** OpenGL 2.0 two-sided StencilFunc */
+ void (*StencilFuncSeparate)(GLcontext *ctx, GLenum face, GLenum func,
+ GLint ref, GLuint mask);
+ /** OpenGL 2.0 two-sided StencilMask */
+ void (*StencilMaskSeparate)(GLcontext *ctx, GLenum face, GLuint mask);
+ /** OpenGL 2.0 two-sided StencilOp */
+ void (*StencilOpSeparate)(GLcontext *ctx, GLenum face, GLenum fail,
+ GLenum zfail, GLenum zpass);
+ /** Control the generation of texture coordinates */
+ void (*TexGen)(GLcontext *ctx, GLenum coord, GLenum pname,
+ const GLfloat *params);
+ /** Set texture environment parameters */
+ void (*TexEnv)(GLcontext *ctx, GLenum target, GLenum pname,
+ const GLfloat *param);
+ /** Set texture parameters */
+ void (*TexParameter)(GLcontext *ctx, GLenum target,
+ struct gl_texture_object *texObj,
+ GLenum pname, const GLfloat *params);
+ void (*TextureMatrix)(GLcontext *ctx, GLuint unit, const GLmatrix *mat);
+ /** Set the viewport */
+ void (*Viewport)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
+ /*@}*/
+
+
+ /**
+ * \name Vertex array functions
+ *
+ * Called by the corresponding OpenGL functions.
+ */
+ /*@{*/
+ void (*VertexPointer)(GLcontext *ctx, GLint size, GLenum type,
+ GLsizei stride, const GLvoid *ptr);
+ void (*NormalPointer)(GLcontext *ctx, GLenum type,
+ GLsizei stride, const GLvoid *ptr);
+ void (*ColorPointer)(GLcontext *ctx, GLint size, GLenum type,
+ GLsizei stride, const GLvoid *ptr);
+ void (*FogCoordPointer)(GLcontext *ctx, GLenum type,
+ GLsizei stride, const GLvoid *ptr);
+ void (*IndexPointer)(GLcontext *ctx, GLenum type,
+ GLsizei stride, const GLvoid *ptr);
+ void (*SecondaryColorPointer)(GLcontext *ctx, GLint size, GLenum type,
+ GLsizei stride, const GLvoid *ptr);
+ void (*TexCoordPointer)(GLcontext *ctx, GLint size, GLenum type,
+ GLsizei stride, const GLvoid *ptr);
+ void (*EdgeFlagPointer)(GLcontext *ctx, GLsizei stride, const GLvoid *ptr);
+ void (*VertexAttribPointer)(GLcontext *ctx, GLuint index, GLint size,
+ GLenum type, GLsizei stride, const GLvoid *ptr);
+ void (*LockArraysEXT)( GLcontext *ctx, GLint first, GLsizei count );
+ void (*UnlockArraysEXT)( GLcontext *ctx );
+ /*@}*/
+
+
+ /**
+ * \name State-query functions
+ *
+ * Return GL_TRUE if query was completed, GL_FALSE otherwise.
+ */
+ /*@{*/
+ /** Return the value or values of a selected parameter */
+ GLboolean (*GetBooleanv)(GLcontext *ctx, GLenum pname, GLboolean *result);
+ /** Return the value or values of a selected parameter */
+ GLboolean (*GetDoublev)(GLcontext *ctx, GLenum pname, GLdouble *result);
+ /** Return the value or values of a selected parameter */
+ GLboolean (*GetFloatv)(GLcontext *ctx, GLenum pname, GLfloat *result);
+ /** Return the value or values of a selected parameter */
+ GLboolean (*GetIntegerv)(GLcontext *ctx, GLenum pname, GLint *result);
+ /** Return the value or values of a selected parameter */
+ GLboolean (*GetPointerv)(GLcontext *ctx, GLenum pname, GLvoid **result);
+ /*@}*/
+
+
+ /**
+ * \name Vertex/pixel buffer object functions
+ */
+#if FEATURE_ARB_vertex_buffer_object
+ /*@{*/
+ void (*BindBuffer)( GLcontext *ctx, GLenum target,
+ struct gl_buffer_object *obj );
+
+ struct gl_buffer_object * (*NewBufferObject)( GLcontext *ctx, GLuint buffer,
+ GLenum target );
+
+ void (*DeleteBuffer)( GLcontext *ctx, struct gl_buffer_object *obj );
+
+ void (*BufferData)( GLcontext *ctx, GLenum target, GLsizeiptrARB size,
+ const GLvoid *data, GLenum usage,
+ struct gl_buffer_object *obj );
+
+ void (*BufferSubData)( GLcontext *ctx, GLenum target, GLintptrARB offset,
+ GLsizeiptrARB size, const GLvoid *data,
+ struct gl_buffer_object *obj );
+
+ void (*GetBufferSubData)( GLcontext *ctx, GLenum target,
+ GLintptrARB offset, GLsizeiptrARB size,
+ GLvoid *data, struct gl_buffer_object *obj );
+
+ void * (*MapBuffer)( GLcontext *ctx, GLenum target, GLenum access,
+ struct gl_buffer_object *obj );
+
+ GLboolean (*UnmapBuffer)( GLcontext *ctx, GLenum target,
+ struct gl_buffer_object *obj );
+ /*@}*/
+#endif
+
+ /**
+ * \name Functions for GL_EXT_framebuffer_object
+ */
+#if FEATURE_EXT_framebuffer_object
+ /*@{*/
+ struct gl_framebuffer * (*NewFramebuffer)(GLcontext *ctx, GLuint name);
+ struct gl_renderbuffer * (*NewRenderbuffer)(GLcontext *ctx, GLuint name);
+ void (*BindFramebuffer)(GLcontext *ctx, GLenum target,
+ struct gl_framebuffer *fb);
+ void (*FramebufferRenderbuffer)(GLcontext *ctx,
+ struct gl_framebuffer *fb,
+ GLenum attachment,
+ struct gl_renderbuffer *rb);
+ void (*RenderTexture)(GLcontext *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer_attachment *att);
+ void (*FinishRenderTexture)(GLcontext *ctx,
+ struct gl_renderbuffer_attachment *att);
+ /*@}*/
+#endif
+#if FEATURE_EXT_framebuffer_blit
+ void (*BlitFramebuffer)(GLcontext *ctx,
+ GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+ GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+ GLbitfield mask, GLenum filter);
+#endif
+
+ /**
+ * \name Query objects
+ */
+ /*@{*/
+ struct gl_query_object * (*NewQueryObject)(GLcontext *ctx, GLuint id);
+ void (*BeginQuery)(GLcontext *ctx, GLenum target,
+ struct gl_query_object *q);
+ void (*EndQuery)(GLcontext *ctx, GLenum target, struct gl_query_object *q);
+ /*@}*/
+
+
+ /**
+ * \name Vertex Array objects
+ */
+ /*@{*/
+ struct gl_array_object * (*NewArrayObject)(GLcontext *ctx, GLuint id);
+ void (*DeleteArrayObject)(GLcontext *ctx, struct gl_array_object *obj);
+ void (*BindArrayObject)(GLcontext *ctx, struct gl_array_object *obj);
+ /*@}*/
+
+
+ /**
+ * \name Support for multiple T&L engines
+ */
+ /*@{*/
+
+ /**
+ * Bitmask of state changes that require the current T&L module to be
+ * validated, using ValidateTnlModule() below.
+ */
+ GLuint NeedValidate;
+
+ /**
+ * Validate the current T&L module.
+ *
+ * This is called directly after UpdateState() when a state change that has
+ * occurred matches the dd_function_table::NeedValidate bitmask above. This
+ * ensures all computed values are up to date, thus allowing the driver to
+ * decide if the current T&L module needs to be swapped out.
+ *
+ * This must be non-NULL if a driver installs a custom T&L module and sets
+ * the dd_function_table::NeedValidate bitmask, but may be NULL otherwise.
+ */
+ void (*ValidateTnlModule)( GLcontext *ctx, GLuint new_state );
+
+
+#define PRIM_OUTSIDE_BEGIN_END GL_POLYGON+1
+#define PRIM_INSIDE_UNKNOWN_PRIM GL_POLYGON+2
+#define PRIM_UNKNOWN GL_POLYGON+3
+
+ /**
+ * Set by the driver-supplied T&L engine.
+ *
+ * Set to PRIM_OUTSIDE_BEGIN_END when outside glBegin()/glEnd().
+ */
+ GLuint CurrentExecPrimitive;
+
+ /**
+ * Current state of an in-progress compilation.
+ *
+ * May take on any of the additional values PRIM_OUTSIDE_BEGIN_END,
+ * PRIM_INSIDE_UNKNOWN_PRIM or PRIM_UNKNOWN defined above.
+ */
+ GLuint CurrentSavePrimitive;
+
+
+#define FLUSH_STORED_VERTICES 0x1
+#define FLUSH_UPDATE_CURRENT 0x2
+ /**
+ * Set by the driver-supplied T&L engine whenever vertices are buffered
+ * between glBegin()/glEnd() objects or __GLcontextRec::Current is not
+ * updated.
+ *
+ * The dd_function_table::FlushVertices call below may be used to resolve
+ * these conditions.
+ */
+ GLuint NeedFlush;
+ GLuint SaveNeedFlush;
+
+ /**
+ * If inside glBegin()/glEnd(), it should ASSERT(0). Otherwise, if
+ * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered
+ * vertices, if FLUSH_UPDATE_CURRENT bit is set updates
+ * __GLcontextRec::Current and gl_light_attrib::Material
+ *
+ * Note that the default T&L engine never clears the
+ * FLUSH_UPDATE_CURRENT bit, even after performing the update.
+ */
+ void (*FlushVertices)( GLcontext *ctx, GLuint flags );
+ void (*SaveFlushVertices)( GLcontext *ctx );
+
+ /**
+ * Give the driver the opportunity to hook in its own vtxfmt for
+ * compiling optimized display lists. This is called on each valid
+ * glBegin() during list compilation.
+ */
+ GLboolean (*NotifySaveBegin)( GLcontext *ctx, GLenum mode );
+
+ /**
+ * Notify driver that the special derived value _NeedEyeCoords has
+ * changed.
+ */
+ void (*LightingSpaceChange)( GLcontext *ctx );
+
+ /**
+ * Called by glNewList().
+ *
+ * Let the T&L component know what is going on with display lists
+ * in time to make changes to dispatch tables, etc.
+ */
+ void (*NewList)( GLcontext *ctx, GLuint list, GLenum mode );
+ /**
+ * Called by glEndList().
+ *
+ * \sa dd_function_table::NewList.
+ */
+ void (*EndList)( GLcontext *ctx );
+
+ /**
+ * Called by glCallList(s).
+ *
+ * Notify the T&L component before and after calling a display list.
+ */
+ void (*BeginCallList)( GLcontext *ctx,
+ struct mesa_display_list *dlist );
+ /**
+ * Called by glEndCallList().
+ *
+ * \sa dd_function_table::BeginCallList.
+ */
+ void (*EndCallList)( GLcontext *ctx );
+
+};
+
+
+/**
+ * Transform/Clip/Lighting interface
+ *
+ * Drivers present a reduced set of the functions possible in
+ * glBegin()/glEnd() objects. Core mesa provides translation stubs for the
+ * remaining functions to map down to these entry points.
+ *
+ * These are the initial values to be installed into dispatch by
+ * mesa. If the T&L driver wants to modify the dispatch table
+ * while installed, it must do so itself. It would be possible for
+ * the vertexformat to install it's own initial values for these
+ * functions, but this way there is an obvious list of what is
+ * expected of the driver.
+ *
+ * If the driver wants to hook in entry points other than those
+ * listed, it must restore them to their original values in
+ * the disable() callback, below.
+ */
+typedef struct {
+ /**
+ * \name Vertex
+ */
+ /*@{*/
+ void (GLAPIENTRYP ArrayElement)( GLint ); /* NOTE */
+ void (GLAPIENTRYP Color3f)( GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP Color3fv)( const GLfloat * );
+ void (GLAPIENTRYP Color4f)( GLfloat, GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP Color4fv)( const GLfloat * );
+ void (GLAPIENTRYP EdgeFlag)( GLboolean );
+ void (GLAPIENTRYP EvalCoord1f)( GLfloat ); /* NOTE */
+ void (GLAPIENTRYP EvalCoord1fv)( const GLfloat * ); /* NOTE */
+ void (GLAPIENTRYP EvalCoord2f)( GLfloat, GLfloat ); /* NOTE */
+ void (GLAPIENTRYP EvalCoord2fv)( const GLfloat * ); /* NOTE */
+ void (GLAPIENTRYP EvalPoint1)( GLint ); /* NOTE */
+ void (GLAPIENTRYP EvalPoint2)( GLint, GLint ); /* NOTE */
+ void (GLAPIENTRYP FogCoordfEXT)( GLfloat );
+ void (GLAPIENTRYP FogCoordfvEXT)( const GLfloat * );
+ void (GLAPIENTRYP Indexf)( GLfloat );
+ void (GLAPIENTRYP Indexfv)( const GLfloat * );
+ void (GLAPIENTRYP Materialfv)( GLenum face, GLenum pname, const GLfloat * ); /* NOTE */
+ void (GLAPIENTRYP MultiTexCoord1fARB)( GLenum, GLfloat );
+ void (GLAPIENTRYP MultiTexCoord1fvARB)( GLenum, const GLfloat * );
+ void (GLAPIENTRYP MultiTexCoord2fARB)( GLenum, GLfloat, GLfloat );
+ void (GLAPIENTRYP MultiTexCoord2fvARB)( GLenum, const GLfloat * );
+ void (GLAPIENTRYP MultiTexCoord3fARB)( GLenum, GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP MultiTexCoord3fvARB)( GLenum, const GLfloat * );
+ void (GLAPIENTRYP MultiTexCoord4fARB)( GLenum, GLfloat, GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP MultiTexCoord4fvARB)( GLenum, const GLfloat * );
+ void (GLAPIENTRYP Normal3f)( GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP Normal3fv)( const GLfloat * );
+ void (GLAPIENTRYP SecondaryColor3fEXT)( GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP SecondaryColor3fvEXT)( const GLfloat * );
+ void (GLAPIENTRYP TexCoord1f)( GLfloat );
+ void (GLAPIENTRYP TexCoord1fv)( const GLfloat * );
+ void (GLAPIENTRYP TexCoord2f)( GLfloat, GLfloat );
+ void (GLAPIENTRYP TexCoord2fv)( const GLfloat * );
+ void (GLAPIENTRYP TexCoord3f)( GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP TexCoord3fv)( const GLfloat * );
+ void (GLAPIENTRYP TexCoord4f)( GLfloat, GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP TexCoord4fv)( const GLfloat * );
+ void (GLAPIENTRYP Vertex2f)( GLfloat, GLfloat );
+ void (GLAPIENTRYP Vertex2fv)( const GLfloat * );
+ void (GLAPIENTRYP Vertex3f)( GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP Vertex3fv)( const GLfloat * );
+ void (GLAPIENTRYP Vertex4f)( GLfloat, GLfloat, GLfloat, GLfloat );
+ void (GLAPIENTRYP Vertex4fv)( const GLfloat * );
+ void (GLAPIENTRYP CallList)( GLuint ); /* NOTE */
+ void (GLAPIENTRYP CallLists)( GLsizei, GLenum, const GLvoid * ); /* NOTE */
+ void (GLAPIENTRYP Begin)( GLenum );
+ void (GLAPIENTRYP End)( void );
+ /* GL_NV_vertex_program */
+ void (GLAPIENTRYP VertexAttrib1fNV)( GLuint index, GLfloat x );
+ void (GLAPIENTRYP VertexAttrib1fvNV)( GLuint index, const GLfloat *v );
+ void (GLAPIENTRYP VertexAttrib2fNV)( GLuint index, GLfloat x, GLfloat y );
+ void (GLAPIENTRYP VertexAttrib2fvNV)( GLuint index, const GLfloat *v );
+ void (GLAPIENTRYP VertexAttrib3fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
+ void (GLAPIENTRYP VertexAttrib3fvNV)( GLuint index, const GLfloat *v );
+ void (GLAPIENTRYP VertexAttrib4fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
+ void (GLAPIENTRYP VertexAttrib4fvNV)( GLuint index, const GLfloat *v );
+#if FEATURE_ARB_vertex_program
+ void (GLAPIENTRYP VertexAttrib1fARB)( GLuint index, GLfloat x );
+ void (GLAPIENTRYP VertexAttrib1fvARB)( GLuint index, const GLfloat *v );
+ void (GLAPIENTRYP VertexAttrib2fARB)( GLuint index, GLfloat x, GLfloat y );
+ void (GLAPIENTRYP VertexAttrib2fvARB)( GLuint index, const GLfloat *v );
+ void (GLAPIENTRYP VertexAttrib3fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
+ void (GLAPIENTRYP VertexAttrib3fvARB)( GLuint index, const GLfloat *v );
+ void (GLAPIENTRYP VertexAttrib4fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
+ void (GLAPIENTRYP VertexAttrib4fvARB)( GLuint index, const GLfloat *v );
+#endif
+ /*@}*/
+
+ /*
+ */
+ void (GLAPIENTRYP Rectf)( GLfloat, GLfloat, GLfloat, GLfloat );
+
+ /**
+ * \name Array
+ */
+ /*@{*/
+ void (GLAPIENTRYP DrawArrays)( GLenum mode, GLint start, GLsizei count );
+ void (GLAPIENTRYP DrawElements)( GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices );
+ void (GLAPIENTRYP DrawRangeElements)( GLenum mode, GLuint start,
+ GLuint end, GLsizei count,
+ GLenum type, const GLvoid *indices );
+ /*@}*/
+
+ /**
+ * \name Eval
+ *
+ * If you don't support eval, fallback to the default vertex format
+ * on receiving an eval call and use the pipeline mechanism to
+ * provide partial T&L acceleration.
+ *
+ * Mesa will provide a set of helper functions to do eval within
+ * accelerated vertex formats, eventually...
+ */
+ /*@{*/
+ void (GLAPIENTRYP EvalMesh1)( GLenum mode, GLint i1, GLint i2 );
+ void (GLAPIENTRYP EvalMesh2)( GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2 );
+ /*@}*/
+
+} GLvertexformat;
+
+
+#endif /* DD_INCLUDED */