| /* $Id: dd.h,v 1.1 1999/08/19 00:55:41 jtg Exp $ */ |
| |
| /* |
| * Mesa 3-D graphics library |
| * Version: 3.1 |
| * |
| * Copyright (C) 1999 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 |
| |
| |
| #include "macros.h" |
| |
| |
| struct gl_pixelstore_attrib; |
| |
| |
| struct vertex_buffer; |
| struct immediate; |
| struct gl_pipeline_stage; |
| |
| |
| /* THIS FILE ONLY INCLUDED BY types.h !!!!! */ |
| |
| |
| /* |
| * Device Driver (DD) interface |
| * |
| * |
| * All device driver functions are accessed through pointers in the |
| * dd_function_table struct (defined below) which is stored in the GLcontext |
| * struct. Since the device driver is strictly accessed trough a table of |
| * function pointers we can: |
| * 1. switch between a number of different device drivers at runtime. |
| * 2. use optimized functions dependant on current rendering state or |
| * frame buffer configuration. |
| * |
| * The function pointers in the dd_function_table struct are divided into |
| * two groups: mandatory and optional. |
| * Mandatory functions have to be implemented by every device driver. |
| * Optional functions may or may not be implemented by the device driver. |
| * 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. |
| * |
| * Later, Mesa may call the dd_function_table's UpdateState() function. |
| * This function should initialize the dd_function_table's pointers again. |
| * The UpdateState() function is called whenever the core (GL) rendering |
| * state is changed in a way which may effect rasterization. For example, |
| * the TriangleFunc() pointer may have to point to different functions |
| * depending on whether smooth or flat shading is enabled. |
| * |
| * Note that the first argument to every device driver function is a |
| * GLcontext *. In turn, the GLcontext->DriverCtx pointer points to |
| * the driver-specific context struct. See the X/Mesa or OS/Mesa interface |
| * 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. |
| * |
| * |
| * Look below in the dd_function_table struct definition for descriptions |
| * of each device driver function. |
| * |
| * |
| * In the future more function pointers may be added for glReadPixels |
| * glCopyPixels, etc. |
| * |
| * |
| * Notes: |
| * ------ |
| * RGBA = red/green/blue/alpha |
| * CI = color index (color mapped mode) |
| * mono = all pixels have the same color or index |
| * |
| * The write_ functions all take an array of mask flags which indicate |
| * whether or not the pixel should be written. One special case exists |
| * in the write_color_span function: if the mask array is NULL, then |
| * draw all pixels. This is an optimization used for glDrawPixels(). |
| * |
| * IN ALL CASES: |
| * X coordinates start at 0 at the left and increase to the right |
| * Y coordinates start at 0 at the bottom and increase upward |
| * |
| */ |
| |
| |
| |
| |
| /* Used by the GetParameteri device driver function */ |
| #define DD_HAVE_HARDWARE_FOG 3 |
| |
| |
| |
| |
| |
| /* |
| * Device Driver function table. |
| */ |
| struct dd_function_table { |
| |
| /********************************************************************** |
| *** Mandatory functions: these functions must be implemented by *** |
| *** 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! |
| */ |
| |
| void (*UpdateState)( GLcontext *ctx ); |
| /* |
| * UpdateState() is called whenver Mesa thinks the device driver should |
| * update its state and/or the other pointers (such as PointsFunc, |
| * LineFunc, or TriangleFunc). |
| */ |
| |
| void (*ClearIndex)( GLcontext *ctx, GLuint index ); |
| /* |
| * Called whenever glClearIndex() is called. Set the index for clearing |
| * the color buffer. |
| */ |
| |
| 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. |
| */ |
| |
| 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). |
| */ |
| |
| void (*Index)( GLcontext *ctx, GLuint index ); |
| /* |
| * Sets current color index for drawing flat-shaded primitives. |
| */ |
| |
| void (*Color)( GLcontext *ctx, |
| GLubyte red, GLubyte green, GLubyte glue, GLubyte alpha ); |
| /* |
| * Sets current color for drawing flat-shaded primitives. |
| */ |
| |
| GLboolean (*SetBuffer)( GLcontext *ctx, GLenum buffer ); |
| /* |
| * Selects the color buffer(s) for reading and writing. |
| * The following values must be accepted when applicable: |
| * 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 |
| * The folowing values may optionally be accepted. Return GL_TRUE |
| * if accepted, GL_FALSE if not accepted. In practice, only drivers |
| * which can write to multiple color buffers at once should accept |
| * these values. |
| * GL_FRONT - write to front left and front right if it exists |
| * GL_BACK - write to back left and back right if it exists |
| * GL_LEFT - write to front left and back left if it exists |
| * GL_RIGHT - write to right left and back right if they exist |
| * GL_FRONT_AND_BACK - write to all four buffers if they exist |
| * GL_NONE - disable buffer write in device driver. |
| */ |
| |
| void (*GetBufferSize)( GLcontext *ctx, |
| GLuint *width, GLuint *height ); |
| /* |
| * Returns the width and height of the current color buffer. |
| */ |
| |
| |
| /*** |
| *** Functions for writing pixels to the frame buffer: |
| ***/ |
| |
| void (*WriteRGBASpan)( const GLcontext *ctx, |
| GLuint n, GLint x, GLint y, |
| CONST GLubyte rgba[][4], const GLubyte mask[] ); |
| 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. |
| */ |
| |
| void (*WriteMonoRGBASpan)( const GLcontext *ctx, GLuint n, GLint x, GLint y, |
| const GLubyte mask[] ); |
| /* Write a horizontal run of mono-RGBA pixels. |
| */ |
| |
| void (*WriteRGBAPixels)( const GLcontext *ctx, |
| GLuint n, const GLint x[], const GLint y[], |
| CONST GLubyte rgba[][4], const GLubyte mask[] ); |
| /* Write array of RGBA pixels at random locations. |
| */ |
| |
| void (*WriteMonoRGBAPixels)( const GLcontext *ctx, |
| GLuint n, const GLint x[], const GLint y[], |
| const GLubyte mask[] ); |
| /* Write an array of mono-RGBA pixels at random locations. |
| */ |
| |
| void (*WriteCI32Span)( const GLcontext *ctx, GLuint n, GLint x, GLint y, |
| 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. |
| */ |
| |
| void (*WriteMonoCISpan)( const GLcontext *ctx, GLuint n, GLint x, GLint y, |
| const GLubyte mask[] ); |
| /* Write a horizontal run of mono-CI pixels. |
| */ |
| |
| void (*WriteCI32Pixels)( const GLcontext *ctx, |
| GLuint n, const GLint x[], const GLint y[], |
| const GLuint index[], const GLubyte mask[] ); |
| /* |
| * Write a random array of CI pixels. |
| */ |
| |
| void (*WriteMonoCIPixels)( const GLcontext *ctx, |
| GLuint n, const GLint x[], const GLint y[], |
| const GLubyte mask[] ); |
| /* |
| * Write a random array of mono-CI pixels. |
| */ |
| |
| |
| /*** |
| *** Functions to read pixels from frame buffer: |
| ***/ |
| |
| void (*ReadCI32Span)( const GLcontext *ctx, |
| GLuint n, GLint x, GLint y, GLuint index[] ); |
| /* Read a horizontal run of color index pixels. |
| */ |
| |
| void (*ReadRGBASpan)( const GLcontext *ctx, GLuint n, GLint x, GLint y, |
| GLubyte rgba[][4] ); |
| /* Read a horizontal run of RGBA pixels. |
| */ |
| |
| void (*ReadCI32Pixels)( const GLcontext *ctx, |
| GLuint n, const GLint x[], const GLint y[], |
| GLuint indx[], const GLubyte mask[] ); |
| /* Read a random array of CI pixels. |
| */ |
| |
| void (*ReadRGBAPixels)( const GLcontext *ctx, |
| GLuint n, const GLint x[], const GLint y[], |
| GLubyte rgba[][4], const GLubyte mask[] ); |
| /* Read a random array of RGBA pixels. |
| */ |
| |
| |
| /********************************************************************** |
| *** Optional functions: these functions may or may not be *** |
| *** implemented by the device driver. If the device driver *** |
| *** doesn't implement them it should never touch these pointers *** |
| *** since Mesa will either set them to NULL or point them at a *** |
| *** 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. |
| */ |
| |
| void (*Flush)( GLcontext *ctx ); |
| /* |
| * Called whenever glFlush() is called. |
| */ |
| |
| GLboolean (*IndexMask)( GLcontext *ctx, GLuint mask ); |
| /* |
| * Implements glIndexMask() if possible, else return GL_FALSE. |
| */ |
| |
| GLboolean (*ColorMask)( GLcontext *ctx, |
| GLboolean rmask, GLboolean gmask, |
| GLboolean bmask, GLboolean amask ); |
| /* |
| * Implements glColorMask() if possible, else return GL_FALSE. |
| */ |
| |
| GLboolean (*LogicOp)( GLcontext *ctx, GLenum op ); |
| /* |
| * Implements glLogicOp() if possible, else return GL_FALSE. |
| */ |
| |
| void (*Dither)( GLcontext *ctx, GLboolean enable ); |
| /* |
| * Enable/disable dithering. |
| * NOTE: This function will be removed in the future in favor |
| * of the "Enable" driver function. |
| */ |
| |
| void (*Error)( GLcontext *ctx ); |
| /* |
| * Called whenever an error is generated. ctx->ErrorValue contains |
| * the error value. |
| */ |
| |
| void (*NearFar)( GLcontext *ctx, GLfloat nearVal, GLfloat farVal ); |
| /* |
| * Called from glFrustum and glOrtho to tell device driver the |
| * near and far clipping plane Z values. The 3Dfx driver, for example, |
| * uses this. |
| */ |
| |
| GLint (*GetParameteri)( const GLcontext *ctx, GLint param ); |
| /* Query the device driver to get an integer parameter. |
| * Current parameters: |
| * DD_MAX_TEXTURE_SIZE return maximum texture size |
| * |
| * DD_MAX_TEXTURES number of texture sets/stages, usually 1 |
| * |
| * DD_HAVE_HARDWARE_FOG the driver should return 1 (0 otherwise) |
| * when the hardware support per fragment |
| * fog for free (like the Voodoo Graphics) |
| * so the Mesa core will start to ever use |
| * per fragment fog |
| */ |
| |
| |
| /*** |
| *** For supporting hardware Z buffers: |
| ***/ |
| |
| void (*AllocDepthBuffer)( GLcontext *ctx ); |
| /* |
| * Called when the depth buffer must be allocated or possibly resized. |
| */ |
| |
| 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 (*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]. |
| */ |
| |
| |
| /*** |
| *** Accelerated point, line, polygon, glDrawPixels 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, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid *pixels ); |
| /* Device driver hook for optimized glDrawPixels. 'unpack' describes how |
| * to unpack the source image data. |
| */ |
| |
| 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. |
| */ |
| |
| void (*RenderStart)( GLcontext *ctx ); |
| void (*RenderFinish)( GLcontext *ctx ); |
| /* KW: These replace Begin and End, and have more relaxed semantics. |
| * They are called prior-to and after one or more vb flush, and are |
| * thus decoupled from the gl_begin/gl_end pairs, which are possibly |
| * more frequent. If a begin/end pair covers >1 vertex buffer, these |
| * are called at most once for the pair. (a bit broken at present) |
| */ |
| |
| void (*RasterSetup)( struct vertex_buffer *VB, GLuint start, GLuint end ); |
| /* This function, if not NULL, is called whenever new window coordinates |
| * are put in the vertex buffer. The vertices in question are those n |
| * such that start <= n < end. |
| * The device driver can convert the window coords to its own specialized |
| * format. The 3Dfx driver uses this. |
| * |
| * Note: Deprecated in favour of RegisterPipelineStages, below. |
| */ |
| |
| |
| render_func *RenderVBClippedTab; |
| render_func *RenderVBCulledTab; |
| render_func *RenderVBRawTab; |
| /* These function tables allow the device driver to rasterize an |
| * entire begin/end group of primitives at once. See the |
| * gl_render_vb() function in vbrender.c for more details. |
| */ |
| |
| |
| GLuint TriangleCaps; |
| /* Holds a list of the reasons why we might normally want to call |
| * render_triangle, but which are in fact implemented by the |
| * driver. The FX driver sets this to DD_TRI_CULL, and will soon |
| * 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 |
| * after the first pass, and passes will be made until the function |
| * returns GL_FALSE. If no function is registered, only one pass |
| * is made. |
| * |
| * 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 |
| ***/ |
| |
| void (*RegisterVB)( struct vertex_buffer *VB ); |
| void (*UnregisterVB)( struct vertex_buffer *VB ); |
| /* Do any processing (eg allocate memory) required to set up a new |
| * vertex_buffer. |
| */ |
| |
| |
| void (*ResetVB)( struct vertex_buffer *VB ); |
| void (*ResetCvaVB)( struct vertex_buffer *VB, GLuint stages ); |
| /* Do any reset operations necessary to the driver data associated |
| * with these vertex buffers. |
| */ |
| |
| GLuint RenderVectorFlags; |
| /* What do the render tables require of the vectors they deal |
| * with? |
| */ |
| |
| GLuint (*RegisterPipelineStages)( struct gl_pipeline_stage *out, |
| const struct gl_pipeline_stage *in, |
| GLuint nr ); |
| /* Register new pipeline stages, or modify existing ones. See also |
| * the OptimizePipeline() functions. |
| */ |
| |
| |
| GLboolean (*BuildPrecalcPipeline)( GLcontext *ctx ); |
| GLboolean (*BuildEltPipeline)( GLcontext *ctx ); |
| /* Perform the full pipeline build, or return false. |
| */ |
| |
| |
| void (*OptimizePrecalcPipeline)( GLcontext *ctx, struct gl_pipeline *pipe ); |
| void (*OptimizeImmediatePipeline)( GLcontext *ctx, struct gl_pipeline *pipe); |
| /* Check to see if a fast path exists for this combination of stages |
| * in the precalc and immediate (elt) pipelines. |
| */ |
| |
| |
| /* |
| * State-changing functions (drawing functions are above) |
| * |
| * These functions are called by their corresponding OpenGL API functions. |
| * They're ALSO called by the gl_PopAttrib() function!!! |
| * May add more functions like these to the device driver in the future. |
| * This should reduce the amount of state checking that |
| * the driver's UpdateState() function must do. |
| */ |
| void (*AlphaFunc)(GLcontext *ctx, GLenum func, GLclampf ref); |
| void (*BlendFunc)(GLcontext *ctx, GLenum sfactor, GLenum dfactor); |
| void (*ClearDepth)(GLcontext *ctx, GLclampd d); |
| void (*CullFace)(GLcontext *ctx, GLenum mode); |
| void (*FrontFace)(GLcontext *ctx, GLenum mode); |
| void (*DepthFunc)(GLcontext *ctx, GLenum func); |
| void (*DepthMask)(GLcontext *ctx, GLboolean flag); |
| void (*DepthRange)(GLcontext *ctx, GLclampd nearval, GLclampd farval); |
| 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 (*PolygonMode)(GLcontext *ctx, GLenum face, GLenum mode); |
| void (*Scissor)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h); |
| void (*ShadeModel)(GLcontext *ctx, GLenum mode); |
| void (*ClearStencil)(GLcontext *ctx, GLint s); |
| void (*StencilFunc)(GLcontext *ctx, GLenum func, GLint ref, GLuint mask); |
| void (*StencilMask)(GLcontext *ctx, GLuint mask); |
| void (*StencilOp)(GLcontext *ctx, GLenum fail, GLenum zfail, GLenum zpass); |
| void (*Viewport)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h); |
| }; |
| |
| |
| |
| #endif |
| |
