1 /* $Id: dd.h,v 1.74 2002/10/11 17:41:04 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 /* THIS FILE ONLY INCLUDED BY mtypes.h !!!!! */
34 struct gl_pixelstore_attrib
;
36 /* Mask bits sent to the driver Clear() function */
37 #define DD_FRONT_LEFT_BIT FRONT_LEFT_BIT /* 1 */
38 #define DD_FRONT_RIGHT_BIT FRONT_RIGHT_BIT /* 2 */
39 #define DD_BACK_LEFT_BIT BACK_LEFT_BIT /* 4 */
40 #define DD_BACK_RIGHT_BIT BACK_RIGHT_BIT /* 8 */
41 #define DD_AUX0 AUX0_BIT /* future use */
42 #define DD_AUX1 AUX1_BIT /* future use */
43 #define DD_AUX2 AUX2_BIT /* future use */
44 #define DD_AUX3 AUX3_BIT /* future use */
45 #define DD_DEPTH_BIT GL_DEPTH_BUFFER_BIT /* 0x00000100 */
46 #define DD_ACCUM_BIT GL_ACCUM_BUFFER_BIT /* 0x00000200 */
47 #define DD_STENCIL_BIT GL_STENCIL_BUFFER_BIT /* 0x00000400 */
51 * Device Driver function table.
53 struct dd_function_table
{
55 const GLubyte
* (*GetString
)( GLcontext
*ctx
, GLenum name
);
56 /* Return a string as needed by glGetString().
57 * Only the GL_RENDERER token must be implemented. Otherwise,
58 * NULL can be returned.
61 void (*UpdateState
)( GLcontext
*ctx
, GLuint new_state
);
63 * UpdateState() is called to notify the driver after Mesa has made
64 * some internal state changes. This is in addition to any
65 * statechange callbacks Mesa may already have made.
68 void (*Clear
)( GLcontext
*ctx
, GLbitfield mask
, GLboolean all
,
69 GLint x
, GLint y
, GLint width
, GLint height
);
70 /* Clear the color/depth/stencil/accum buffer(s).
71 * 'mask' is a bitmask of the DD_*_BIT values defined above that indicates
72 * which buffers need to be cleared.
73 * If 'all' is true then the clear the whole buffer, else clear only the
74 * region defined by (x,y,width,height).
75 * This function must obey the glColorMask, glIndexMask and glStencilMask
77 * Software Mesa can do masked clears if the device driver can't.
80 void (*DrawBuffer
)( GLcontext
*ctx
, GLenum buffer
);
82 * Specifies the current buffer for writing. Called via glDrawBuffer().
83 * Note the driver must organize fallbacks (eg with swrast) if it
84 * cannot implement the requested mode.
88 void (*ReadBuffer
)( GLcontext
*ctx
, GLenum buffer
);
90 * Specifies the current buffer for reading. Called via glReadBuffer().
93 void (*GetBufferSize
)( GLframebuffer
*buffer
,
94 GLuint
*width
, GLuint
*height
);
96 * Returns the width and height of the named buffer/window.
97 * Mesa uses this to determine when the driver's window size has changed.
100 void (*ResizeBuffers
)( GLframebuffer
*buffer
);
102 * Resize the driver's depth/stencil/accum/back buffers to match the
103 * size given in the GLframebuffer struct. This is typically called
104 * when Mesa detects that a window size has changed.
107 void (*Finish
)( GLcontext
*ctx
);
109 * This is called whenever glFinish() is called.
112 void (*Flush
)( GLcontext
*ctx
);
114 * This is called whenever glFlush() is called.
117 void (*Error
)( GLcontext
*ctx
);
119 * Called whenever an error is generated. ctx->ErrorValue contains
125 *** For hardware accumulation buffer:
127 void (*Accum
)( GLcontext
*ctx
, GLenum op
, GLfloat value
,
128 GLint xpos
, GLint ypos
, GLint width
, GLint height
);
129 /* Execute glAccum command within the given scissor region.
134 *** glDraw/Read/CopyPixels and glBitmap functions:
137 void (*DrawPixels
)( GLcontext
*ctx
,
138 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
139 GLenum format
, GLenum type
,
140 const struct gl_pixelstore_attrib
*unpack
,
141 const GLvoid
*pixels
);
142 /* This is called by glDrawPixels.
143 * 'unpack' describes how to unpack the source image data.
146 void (*ReadPixels
)( GLcontext
*ctx
,
147 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
148 GLenum format
, GLenum type
,
149 const struct gl_pixelstore_attrib
*unpack
,
151 /* Called by glReadPixels.
154 void (*CopyPixels
)( GLcontext
*ctx
,
155 GLint srcx
, GLint srcy
,
156 GLsizei width
, GLsizei height
,
157 GLint dstx
, GLint dsty
, GLenum type
);
158 /* Do a glCopyPixels. This function must respect all rasterization
159 * state, glPixelTransfer, glPixelZoom, etc.
162 void (*Bitmap
)( GLcontext
*ctx
,
163 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
164 const struct gl_pixelstore_attrib
*unpack
,
165 const GLubyte
*bitmap
);
166 /* This is called by glBitmap. Works the same as DrawPixels, above.
170 *** Texture image functions:
172 const struct gl_texture_format
*
173 (*ChooseTextureFormat
)( GLcontext
*ctx
, GLint internalFormat
,
174 GLenum srcFormat
, GLenum srcType
);
175 /* This is called by the _mesa_store_tex[sub]image[123]d() fallback
176 * functions. The driver should examine <internalFormat> and return a
177 * pointer to an appropriate gl_texture_format.
180 void (*TexImage1D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
181 GLint internalFormat
,
182 GLint width
, GLint border
,
183 GLenum format
, GLenum type
, const GLvoid
*pixels
,
184 const struct gl_pixelstore_attrib
*packing
,
185 struct gl_texture_object
*texObj
,
186 struct gl_texture_image
*texImage
);
187 void (*TexImage2D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
188 GLint internalFormat
,
189 GLint width
, GLint height
, GLint border
,
190 GLenum format
, GLenum type
, const GLvoid
*pixels
,
191 const struct gl_pixelstore_attrib
*packing
,
192 struct gl_texture_object
*texObj
,
193 struct gl_texture_image
*texImage
);
194 void (*TexImage3D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
195 GLint internalFormat
,
196 GLint width
, GLint height
, GLint depth
, GLint border
,
197 GLenum format
, GLenum type
, const GLvoid
*pixels
,
198 const struct gl_pixelstore_attrib
*packing
,
199 struct gl_texture_object
*texObj
,
200 struct gl_texture_image
*texImage
);
201 /* Called by glTexImage1/2/3D.
203 * <target>, <level>, <format>, <type> and <pixels> are user specified.
204 * <packing> indicates the image packing of pixels.
205 * <texObj> is the target texture object.
206 * <texImage> is the target texture image. It will have the texture
207 * width, height, depth, border and internalFormat information.
208 * <retainInternalCopy> is returned by this function and indicates whether
209 * core Mesa should keep an internal copy of the texture image.
210 * Drivers should call a fallback routine from texstore.c if needed.
213 void (*TexSubImage1D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
214 GLint xoffset
, GLsizei width
,
215 GLenum format
, GLenum type
,
216 const GLvoid
*pixels
,
217 const struct gl_pixelstore_attrib
*packing
,
218 struct gl_texture_object
*texObj
,
219 struct gl_texture_image
*texImage
);
220 void (*TexSubImage2D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
221 GLint xoffset
, GLint yoffset
,
222 GLsizei width
, GLsizei height
,
223 GLenum format
, GLenum type
,
224 const GLvoid
*pixels
,
225 const struct gl_pixelstore_attrib
*packing
,
226 struct gl_texture_object
*texObj
,
227 struct gl_texture_image
*texImage
);
228 void (*TexSubImage3D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
229 GLint xoffset
, GLint yoffset
, GLint zoffset
,
230 GLsizei width
, GLsizei height
, GLint depth
,
231 GLenum format
, GLenum type
,
232 const GLvoid
*pixels
,
233 const struct gl_pixelstore_attrib
*packing
,
234 struct gl_texture_object
*texObj
,
235 struct gl_texture_image
*texImage
);
236 /* Called by glTexSubImage1/2/3D.
238 * <target>, <level>, <xoffset>, <yoffset>, <zoffset>, <width>, <height>,
239 * <depth>, <format>, <type> and <pixels> are user specified.
240 * <packing> indicates the image packing of pixels.
241 * <texObj> is the target texture object.
242 * <texImage> is the target texture image. It will have the texture
243 * width, height, border and internalFormat information.
244 * The driver should use a fallback routine from texstore.c if needed.
247 void (*CopyTexImage1D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
248 GLenum internalFormat
, GLint x
, GLint y
,
249 GLsizei width
, GLint border
);
250 void (*CopyTexImage2D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
251 GLenum internalFormat
, GLint x
, GLint y
,
252 GLsizei width
, GLsizei height
, GLint border
);
253 /* Called by glCopyTexImage1D and glCopyTexImage2D.
254 * Drivers should use a fallback routine from texstore.c if needed.
257 void (*CopyTexSubImage1D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
259 GLint x
, GLint y
, GLsizei width
);
260 void (*CopyTexSubImage2D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
261 GLint xoffset
, GLint yoffset
,
263 GLsizei width
, GLsizei height
);
264 void (*CopyTexSubImage3D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
265 GLint xoffset
, GLint yoffset
, GLint zoffset
,
267 GLsizei width
, GLsizei height
);
268 /* Called by glCopyTexSubImage1/2/3D.
269 * Drivers should use a fallback routine from texstore.c if needed.
272 GLboolean (*TestProxyTexImage
)(GLcontext
*ctx
, GLenum target
,
273 GLint level
, GLint internalFormat
,
274 GLenum format
, GLenum type
,
275 GLint width
, GLint height
,
276 GLint depth
, GLint border
);
277 /* Called by glTexImage[123]D when user specifies a proxy texture
278 * target. Return GL_TRUE if the proxy test passes, return GL_FALSE
283 *** Compressed texture functions:
286 void (*CompressedTexImage1D
)( GLcontext
*ctx
, GLenum target
,
287 GLint level
, GLint internalFormat
,
288 GLsizei width
, GLint border
,
289 GLsizei imageSize
, const GLvoid
*data
,
290 struct gl_texture_object
*texObj
,
291 struct gl_texture_image
*texImage
);
292 void (*CompressedTexImage2D
)( GLcontext
*ctx
, GLenum target
,
293 GLint level
, GLint internalFormat
,
294 GLsizei width
, GLsizei height
, GLint border
,
295 GLsizei imageSize
, const GLvoid
*data
,
296 struct gl_texture_object
*texObj
,
297 struct gl_texture_image
*texImage
);
298 void (*CompressedTexImage3D
)( GLcontext
*ctx
, GLenum target
,
299 GLint level
, GLint internalFormat
,
300 GLsizei width
, GLsizei height
, GLsizei depth
,
302 GLsizei imageSize
, const GLvoid
*data
,
303 struct gl_texture_object
*texObj
,
304 struct gl_texture_image
*texImage
);
305 /* Called by glCompressedTexImage1/2/3D.
307 * <target>, <level>, <internalFormat>, <data> are user specified.
308 * <texObj> is the target texture object.
309 * <texImage> is the target texture image. It will have the texture
310 * width, height, depth, border and internalFormat information.
311 * <retainInternalCopy> is returned by this function and indicates whether
312 * core Mesa should keep an internal copy of the texture image.
313 * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
317 void (*CompressedTexSubImage1D
)(GLcontext
*ctx
, GLenum target
, GLint level
,
318 GLint xoffset
, GLsizei width
,
320 GLsizei imageSize
, const GLvoid
*data
,
321 struct gl_texture_object
*texObj
,
322 struct gl_texture_image
*texImage
);
323 void (*CompressedTexSubImage2D
)(GLcontext
*ctx
, GLenum target
, GLint level
,
324 GLint xoffset
, GLint yoffset
,
325 GLsizei width
, GLint height
,
327 GLsizei imageSize
, const GLvoid
*data
,
328 struct gl_texture_object
*texObj
,
329 struct gl_texture_image
*texImage
);
330 void (*CompressedTexSubImage3D
)(GLcontext
*ctx
, GLenum target
, GLint level
,
331 GLint xoffset
, GLint yoffset
, GLint zoffset
,
332 GLsizei width
, GLint height
, GLint depth
,
334 GLsizei imageSize
, const GLvoid
*data
,
335 struct gl_texture_object
*texObj
,
336 struct gl_texture_image
*texImage
);
337 /* Called by glCompressedTexSubImage1/2/3D.
339 * <target>, <level>, <x/z/zoffset>, <width>, <height>, <depth>,
340 * <imageSize>, and <data> are user specified.
341 * <texObj> is the target texture object.
342 * <texImage> is the target texture image. It will have the texture
343 * width, height, depth, border and internalFormat information.
344 * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
349 *** Texture object functions:
352 void (*BindTexture
)( GLcontext
*ctx
, GLenum target
,
353 struct gl_texture_object
*tObj
);
354 /* Called by glBindTexture().
357 void (*CreateTexture
)( GLcontext
*ctx
, struct gl_texture_object
*tObj
);
358 /* Called when a texture object is created.
361 void (*DeleteTexture
)( GLcontext
*ctx
, struct gl_texture_object
*tObj
);
362 /* Called when a texture object is about to be deallocated. Driver
363 * should free anything attached to the DriverData pointers.
366 GLboolean (*IsTextureResident
)( GLcontext
*ctx
,
367 struct gl_texture_object
*t
);
368 /* Called by glAreTextureResident().
371 void (*PrioritizeTexture
)( GLcontext
*ctx
, struct gl_texture_object
*t
,
373 /* Called by glPrioritizeTextures().
376 void (*ActiveTexture
)( GLcontext
*ctx
, GLuint texUnitNumber
);
377 /* Called by glActiveTextureARB to set current texture unit.
380 void (*UpdateTexturePalette
)( GLcontext
*ctx
,
381 struct gl_texture_object
*tObj
);
382 /* Called when the texture's color lookup table is changed.
383 * If tObj is NULL then the shared texture palette ctx->Texture.Palette
388 *** Imaging functionality:
390 void (*CopyColorTable
)( GLcontext
*ctx
,
391 GLenum target
, GLenum internalformat
,
392 GLint x
, GLint y
, GLsizei width
);
394 void (*CopyColorSubTable
)( GLcontext
*ctx
,
395 GLenum target
, GLsizei start
,
396 GLint x
, GLint y
, GLsizei width
);
398 void (*CopyConvolutionFilter1D
)( GLcontext
*ctx
, GLenum target
,
399 GLenum internalFormat
,
400 GLint x
, GLint y
, GLsizei width
);
402 void (*CopyConvolutionFilter2D
)( GLcontext
*ctx
, GLenum target
,
403 GLenum internalFormat
,
405 GLsizei width
, GLsizei height
);
410 *** State-changing functions (drawing functions are above)
412 *** These functions are called by their corresponding OpenGL API functions.
413 *** They're ALSO called by the gl_PopAttrib() function!!!
414 *** May add more functions like these to the device driver in the future.
416 void (*AlphaFunc
)(GLcontext
*ctx
, GLenum func
, GLfloat ref
);
417 void (*BlendColor
)(GLcontext
*ctx
, const GLfloat color
[4]);
418 void (*BlendEquation
)(GLcontext
*ctx
, GLenum mode
);
419 void (*BlendFunc
)(GLcontext
*ctx
, GLenum sfactor
, GLenum dfactor
);
420 void (*BlendFuncSeparate
)(GLcontext
*ctx
,
421 GLenum sfactorRGB
, GLenum dfactorRGB
,
422 GLenum sfactorA
, GLenum dfactorA
);
423 void (*ClearColor
)(GLcontext
*ctx
, const GLfloat color
[4]);
424 void (*ClearDepth
)(GLcontext
*ctx
, GLclampd d
);
425 void (*ClearIndex
)(GLcontext
*ctx
, GLuint index
);
426 void (*ClearStencil
)(GLcontext
*ctx
, GLint s
);
427 void (*ClipPlane
)(GLcontext
*ctx
, GLenum plane
, const GLfloat
*equation
);
428 void (*ColorMask
)(GLcontext
*ctx
, GLboolean rmask
, GLboolean gmask
,
429 GLboolean bmask
, GLboolean amask
);
430 void (*ColorMaterial
)(GLcontext
*ctx
, GLenum face
, GLenum mode
);
431 void (*CullFace
)(GLcontext
*ctx
, GLenum mode
);
432 void (*FrontFace
)(GLcontext
*ctx
, GLenum mode
);
433 void (*DepthFunc
)(GLcontext
*ctx
, GLenum func
);
434 void (*DepthMask
)(GLcontext
*ctx
, GLboolean flag
);
435 void (*DepthRange
)(GLcontext
*ctx
, GLclampd nearval
, GLclampd farval
);
436 void (*Enable
)(GLcontext
* ctx
, GLenum cap
, GLboolean state
);
437 void (*Fogfv
)(GLcontext
*ctx
, GLenum pname
, const GLfloat
*params
);
438 void (*Hint
)(GLcontext
*ctx
, GLenum target
, GLenum mode
);
439 void (*IndexMask
)(GLcontext
*ctx
, GLuint mask
);
440 void (*Lightfv
)(GLcontext
*ctx
, GLenum light
,
441 GLenum pname
, const GLfloat
*params
);
442 void (*LightModelfv
)(GLcontext
*ctx
, GLenum pname
, const GLfloat
*params
);
443 void (*LineStipple
)(GLcontext
*ctx
, GLint factor
, GLushort pattern
);
444 void (*LineWidth
)(GLcontext
*ctx
, GLfloat width
);
445 void (*LogicOpcode
)(GLcontext
*ctx
, GLenum opcode
);
446 void (*PointParameterfv
)(GLcontext
*ctx
, GLenum pname
,
447 const GLfloat
*params
);
448 void (*PointSize
)(GLcontext
*ctx
, GLfloat size
);
449 void (*PolygonMode
)(GLcontext
*ctx
, GLenum face
, GLenum mode
);
450 void (*PolygonOffset
)(GLcontext
*ctx
, GLfloat factor
, GLfloat units
);
451 void (*PolygonStipple
)(GLcontext
*ctx
, const GLubyte
*mask
);
452 void (*RenderMode
)(GLcontext
*ctx
, GLenum mode
);
453 void (*Scissor
)(GLcontext
*ctx
, GLint x
, GLint y
, GLsizei w
, GLsizei h
);
454 void (*ShadeModel
)(GLcontext
*ctx
, GLenum mode
);
455 void (*StencilFunc
)(GLcontext
*ctx
, GLenum func
, GLint ref
, GLuint mask
);
456 void (*StencilMask
)(GLcontext
*ctx
, GLuint mask
);
457 void (*StencilOp
)(GLcontext
*ctx
, GLenum fail
, GLenum zfail
, GLenum zpass
);
458 void (*ActiveStencilFace
)(GLcontext
*ctx
, GLuint face
);
459 void (*TexGen
)(GLcontext
*ctx
, GLenum coord
, GLenum pname
,
460 const GLfloat
*params
);
461 void (*TexEnv
)(GLcontext
*ctx
, GLenum target
, GLenum pname
,
462 const GLfloat
*param
);
463 void (*TexParameter
)(GLcontext
*ctx
, GLenum target
,
464 struct gl_texture_object
*texObj
,
465 GLenum pname
, const GLfloat
*params
);
466 void (*TextureMatrix
)(GLcontext
*ctx
, GLuint unit
, const GLmatrix
*mat
);
467 void (*Viewport
)(GLcontext
*ctx
, GLint x
, GLint y
, GLsizei w
, GLsizei h
);
470 *** Vertex array functions
472 *** Called by the corresponding OpenGL functions.
474 void (*VertexPointer
)(GLcontext
*ctx
, GLint size
, GLenum type
,
475 GLsizei stride
, const GLvoid
*ptr
);
476 void (*NormalPointer
)(GLcontext
*ctx
, GLenum type
,
477 GLsizei stride
, const GLvoid
*ptr
);
478 void (*ColorPointer
)(GLcontext
*ctx
, GLint size
, GLenum type
,
479 GLsizei stride
, const GLvoid
*ptr
);
480 void (*FogCoordPointer
)(GLcontext
*ctx
, GLenum type
,
481 GLsizei stride
, const GLvoid
*ptr
);
482 void (*IndexPointer
)(GLcontext
*ctx
, GLenum type
,
483 GLsizei stride
, const GLvoid
*ptr
);
484 void (*SecondaryColorPointer
)(GLcontext
*ctx
, GLint size
, GLenum type
,
485 GLsizei stride
, const GLvoid
*ptr
);
486 void (*TexCoordPointer
)(GLcontext
*ctx
, GLint size
, GLenum type
,
487 GLsizei stride
, const GLvoid
*ptr
);
488 void (*EdgeFlagPointer
)(GLcontext
*ctx
, GLsizei stride
, const GLvoid
*ptr
);
489 void (*VertexAttribPointer
)(GLcontext
*ctx
, GLuint index
, GLint size
,
490 GLenum type
, GLsizei stride
, const GLvoid
*ptr
);
493 /*** State-query functions
495 *** Return GL_TRUE if query was completed, GL_FALSE otherwise.
497 GLboolean (*GetBooleanv
)(GLcontext
*ctx
, GLenum pname
, GLboolean
*result
);
498 GLboolean (*GetDoublev
)(GLcontext
*ctx
, GLenum pname
, GLdouble
*result
);
499 GLboolean (*GetFloatv
)(GLcontext
*ctx
, GLenum pname
, GLfloat
*result
);
500 GLboolean (*GetIntegerv
)(GLcontext
*ctx
, GLenum pname
, GLint
*result
);
501 GLboolean (*GetPointerv
)(GLcontext
*ctx
, GLenum pname
, GLvoid
**result
);
504 *** Support for multiple t&l engines
508 /* Bitmask of state changes that require the current tnl module to be
509 * validated, using ValidateTnlModule() below.
512 void (*ValidateTnlModule
)( GLcontext
*ctx
, GLuint new_state
);
513 /* Validate the current tnl module. This is called directly after
514 * UpdateState() when a state change that has occured matches the
515 * NeedValidate bitmask above. This ensures all computed values are
516 * up to date, thus allowing the driver to decide if the current tnl
517 * module needs to be swapped out.
519 * This must be non-NULL if a driver installs a custom tnl module and
520 * sets the NeedValidate bitmask, but may be NULL otherwise.
524 #define PRIM_OUTSIDE_BEGIN_END GL_POLYGON+1
525 #define PRIM_INSIDE_UNKNOWN_PRIM GL_POLYGON+2
526 #define PRIM_UNKNOWN GL_POLYGON+3
528 GLuint CurrentExecPrimitive
;
529 /* Set by the driver-supplied t&l engine. Set to
530 * PRIM_OUTSIDE_BEGIN_END when outside begin/end.
533 GLuint CurrentSavePrimitive
;
534 /* Current state of an in-progress compilation. May take on any of
535 * the additional values defined above.
539 #define FLUSH_STORED_VERTICES 0x1
540 #define FLUSH_UPDATE_CURRENT 0x2
542 /* Set by the driver-supplied t&l engine whenever vertices are
543 * buffered between begin/end objects or ctx->Current is not uptodate.
545 * The FlushVertices() call below may be used to resolve
549 void (*FlushVertices
)( GLcontext
*ctx
, GLuint flags
);
550 /* If inside begin/end, ASSERT(0).
552 * if (flags & FLUSH_STORED_VERTICES) flushes any buffered vertices,
553 * if (flags & FLUSH_UPDATE_CURRENT) updates ctx->Current
554 * and ctx->Light.Material
556 * Note that the default t&l engine never clears the
557 * FLUSH_UPDATE_CURRENT bit, even after performing the update.
560 void (*LightingSpaceChange
)( GLcontext
*ctx
);
561 /* Notify driver that the special derived value _NeedEyeCoords has
565 void (*NewList
)( GLcontext
*ctx
, GLuint list
, GLenum mode
);
566 void (*EndList
)( GLcontext
*ctx
);
567 /* Let the t&l component know what is going on with display lists
568 * in time to make changes to dispatch tables, etc.
569 * Called by glNewList() and glEndList(), respectively.
572 void (*BeginCallList
)( GLcontext
*ctx
, GLuint list
);
573 void (*EndCallList
)( GLcontext
*ctx
);
574 /* Notify the t&l component before and after calling a display list.
575 * Called by glCallList(s), but not recursively.
578 void (*MakeCurrent
)( GLcontext
*ctx
, GLframebuffer
*drawBuffer
,
579 GLframebuffer
*readBuffer
);
580 /* Let the t&l component know when the context becomes current.
584 void (*LockArraysEXT
)( GLcontext
*ctx
, GLint first
, GLsizei count
);
585 void (*UnlockArraysEXT
)( GLcontext
*ctx
);
586 /* Called by glLockArraysEXT() and glUnlockArraysEXT(), respectively.
593 * Transform/Clip/Lighting interface
596 void (*ArrayElement
)( GLint
); /* NOTE */
597 void (*Color3f
)( GLfloat
, GLfloat
, GLfloat
);
598 void (*Color3fv
)( const GLfloat
* );
599 void (*Color3ub
)( GLubyte
, GLubyte
, GLubyte
);
600 void (*Color3ubv
)( const GLubyte
* );
601 void (*Color4f
)( GLfloat
, GLfloat
, GLfloat
, GLfloat
);
602 void (*Color4fv
)( const GLfloat
* );
603 void (*Color4ub
)( GLubyte
, GLubyte
, GLubyte
, GLubyte
);
604 void (*Color4ubv
)( const GLubyte
* );
605 void (*EdgeFlag
)( GLboolean
);
606 void (*EdgeFlagv
)( const GLboolean
* );
607 void (*EvalCoord1f
)( GLfloat
); /* NOTE */
608 void (*EvalCoord1fv
)( const GLfloat
* ); /* NOTE */
609 void (*EvalCoord2f
)( GLfloat
, GLfloat
); /* NOTE */
610 void (*EvalCoord2fv
)( const GLfloat
* ); /* NOTE */
611 void (*EvalPoint1
)( GLint
); /* NOTE */
612 void (*EvalPoint2
)( GLint
, GLint
); /* NOTE */
613 void (*FogCoordfEXT
)( GLfloat
);
614 void (*FogCoordfvEXT
)( const GLfloat
* );
615 void (*Indexi
)( GLint
);
616 void (*Indexiv
)( const GLint
* );
617 void (*Materialfv
)( GLenum face
, GLenum pname
, const GLfloat
* ); /* NOTE */
618 void (*MultiTexCoord1fARB
)( GLenum
, GLfloat
);
619 void (*MultiTexCoord1fvARB
)( GLenum
, const GLfloat
* );
620 void (*MultiTexCoord2fARB
)( GLenum
, GLfloat
, GLfloat
);
621 void (*MultiTexCoord2fvARB
)( GLenum
, const GLfloat
* );
622 void (*MultiTexCoord3fARB
)( GLenum
, GLfloat
, GLfloat
, GLfloat
);
623 void (*MultiTexCoord3fvARB
)( GLenum
, const GLfloat
* );
624 void (*MultiTexCoord4fARB
)( GLenum
, GLfloat
, GLfloat
, GLfloat
, GLfloat
);
625 void (*MultiTexCoord4fvARB
)( GLenum
, const GLfloat
* );
626 void (*Normal3f
)( GLfloat
, GLfloat
, GLfloat
);
627 void (*Normal3fv
)( const GLfloat
* );
628 void (*SecondaryColor3fEXT
)( GLfloat
, GLfloat
, GLfloat
);
629 void (*SecondaryColor3fvEXT
)( const GLfloat
* );
630 void (*SecondaryColor3ubEXT
)( GLubyte
, GLubyte
, GLubyte
);
631 void (*SecondaryColor3ubvEXT
)( const GLubyte
* );
632 void (*TexCoord1f
)( GLfloat
);
633 void (*TexCoord1fv
)( const GLfloat
* );
634 void (*TexCoord2f
)( GLfloat
, GLfloat
);
635 void (*TexCoord2fv
)( const GLfloat
* );
636 void (*TexCoord3f
)( GLfloat
, GLfloat
, GLfloat
);
637 void (*TexCoord3fv
)( const GLfloat
* );
638 void (*TexCoord4f
)( GLfloat
, GLfloat
, GLfloat
, GLfloat
);
639 void (*TexCoord4fv
)( const GLfloat
* );
640 void (*Vertex2f
)( GLfloat
, GLfloat
);
641 void (*Vertex2fv
)( const GLfloat
* );
642 void (*Vertex3f
)( GLfloat
, GLfloat
, GLfloat
);
643 void (*Vertex3fv
)( const GLfloat
* );
644 void (*Vertex4f
)( GLfloat
, GLfloat
, GLfloat
, GLfloat
);
645 void (*Vertex4fv
)( const GLfloat
* );
646 void (*CallList
)( GLuint
); /* NOTE */
647 void (*Begin
)( GLenum
);
649 void (*VertexAttrib4fNV
)( GLuint index
, GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
);
650 void (*VertexAttrib4fvNV
)( GLuint index
, const GLfloat
*v
);
652 /* Drivers present a reduced set of the functions possible in
653 * begin/end objects. Core mesa provides translation stubs for the
654 * remaining functions to map down to these entrypoints.
656 * These are the initial values to be installed into dispatch by
657 * mesa. If the t&l driver wants to modify the dispatch table
658 * while installed, it must do so itself. It would be possible for
659 * the vertexformat to install it's own initial values for these
660 * functions, but this way there is an obvious list of what is
661 * expected of the driver.
663 * If the driver wants to hook in entrypoints other than those
664 * listed above, it must restore them to their original values in
665 * the disable() callback, below.
668 void (*Rectf
)( GLfloat
, GLfloat
, GLfloat
, GLfloat
);
672 void (*DrawArrays
)( GLenum mode
, GLint start
, GLsizei count
);
673 void (*DrawElements
)( GLenum mode
, GLsizei count
, GLenum type
,
674 const GLvoid
*indices
);
675 void (*DrawRangeElements
)( GLenum mode
, GLuint start
,
676 GLuint end
, GLsizei count
,
677 GLenum type
, const GLvoid
*indices
);
678 /* These may or may not belong here. Heuristic: If an array is
679 * enabled, the installed vertex format should support that array and
680 * it's current size natively.
683 void (*EvalMesh1
)( GLenum mode
, GLint i1
, GLint i2
);
684 void (*EvalMesh2
)( GLenum mode
, GLint i1
, GLint i2
, GLint j1
, GLint j2
);
685 /* If you don't support eval, fallback to the default vertex format
686 * on receiving an eval call and use the pipeline mechanism to
687 * provide partial t&l acceleration.
689 * Mesa will provide a set of helper functions to do eval within
690 * accelerated vertex formats, eventually...
693 GLboolean prefer_float_colors
;
694 /* Should core try to send colors to glColor4f or glColor4chan,
695 * where it has a choice?
700 #endif /* DD_INCLUDED */