1 /* $Id: dd.h,v 1.69 2002/06/15 02:38:15 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_DEPTH_BIT GL_DEPTH_BUFFER_BIT /* 0x00000100 */
42 #define DD_STENCIL_BIT GL_STENCIL_BUFFER_BIT /* 0x00000400 */
43 #define DD_ACCUM_BIT GL_ACCUM_BUFFER_BIT /* 0x00000200 */
47 * Device Driver function table.
49 struct dd_function_table
{
51 /**********************************************************************
52 *** Mandatory functions: these functions must be implemented by ***
53 *** every device driver. ***
54 **********************************************************************/
56 const GLubyte
* (*GetString
)( GLcontext
*ctx
, GLenum name
);
57 /* Return a string as needed by glGetString().
58 * Only the GL_RENDERER token must be implemented. Otherwise,
59 * NULL can be returned.
62 void (*UpdateState
)( GLcontext
*ctx
, GLuint new_state
);
64 * UpdateState() is called to notify the driver after Mesa has made
65 * some internal state changes. This is in addition to any
66 * statechange callbacks Mesa may already have made.
69 void (*Clear
)( GLcontext
*ctx
, GLbitfield mask
, GLboolean all
,
70 GLint x
, GLint y
, GLint width
, GLint height
);
71 /* Clear the color/depth/stencil/accum buffer(s).
72 * 'mask' is a bitmask of the DD_*_BIT values defined above that indicates
73 * which buffers need to be cleared.
74 * If 'all' is true then the clear the whole buffer, else clear only the
75 * region defined by (x,y,width,height).
76 * This function must obey the glColorMask, glIndexMask and glStencilMask
77 * settings! Software Mesa can do masked clears if the device driver can't.
80 void (*SetDrawBuffer
)( GLcontext
*ctx
, GLenum buffer
);
82 * Specifies the current buffer for writing.
83 * The following values must be accepted when applicable:
84 * GL_FRONT_LEFT - this buffer always exists
85 * GL_BACK_LEFT - when double buffering
86 * GL_FRONT_RIGHT - when using stereo
87 * GL_BACK_RIGHT - when using stereo and double buffering
88 * GL_FRONT - write to front left and front right if it exists
89 * GL_BACK - write to back left and back right if it exists
90 * GL_LEFT - write to front left and back left if it exists
91 * GL_RIGHT - write to right left and back right if they exist
92 * GL_FRONT_AND_BACK - write to all four buffers if they exist
93 * GL_NONE - disable buffer write in device driver.
95 * Note the driver must organize fallbacks (eg with swrast) if it
96 * cannot implement the requested mode.
99 void (*GetBufferSize
)( GLframebuffer
*buffer
,
100 GLuint
*width
, GLuint
*height
);
102 * Returns the width and height of the named buffer/window.
103 * Mesa uses this to determine when the driver's window size has changed.
106 void (*ResizeBuffers
)( GLframebuffer
*buffer
);
108 * Resize the driver's depth/stencil/accum/back buffers to match the
109 * size given in the GLframebuffer struct. This is typically called
110 * when Mesa detects that a window size has changed.
113 void (*Finish
)( GLcontext
*ctx
);
115 * This is called whenever glFinish() is called.
118 void (*Flush
)( GLcontext
*ctx
);
120 * This is called whenever glFlush() is called.
123 void (*Error
)( GLcontext
*ctx
);
125 * Called whenever an error is generated. ctx->ErrorValue contains
131 *** For hardware accumulation buffer:
133 void (*Accum
)( GLcontext
*ctx
, GLenum op
, GLfloat value
,
134 GLint xpos
, GLint ypos
, GLint width
, GLint height
);
135 /* Execute glAccum command within the given scissor region.
140 *** glDraw/Read/CopyPixels and glBitmap functions:
143 void (*DrawPixels
)( GLcontext
*ctx
,
144 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
145 GLenum format
, GLenum type
,
146 const struct gl_pixelstore_attrib
*unpack
,
147 const GLvoid
*pixels
);
148 /* This is called by glDrawPixels.
149 * 'unpack' describes how to unpack the source image data.
152 void (*ReadPixels
)( GLcontext
*ctx
,
153 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
154 GLenum format
, GLenum type
,
155 const struct gl_pixelstore_attrib
*unpack
,
157 /* Called by glReadPixels.
160 void (*CopyPixels
)( GLcontext
*ctx
,
161 GLint srcx
, GLint srcy
,
162 GLsizei width
, GLsizei height
,
163 GLint dstx
, GLint dsty
, GLenum type
);
164 /* Do a glCopyPixels. This function must respect all rasterization
165 * state, glPixelTransfer, glPixelZoom, etc.
168 void (*Bitmap
)( GLcontext
*ctx
,
169 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
170 const struct gl_pixelstore_attrib
*unpack
,
171 const GLubyte
*bitmap
);
172 /* This is called by glBitmap. Works the same as DrawPixels, above.
176 *** Texture image functions:
178 const struct gl_texture_format
*
179 (*ChooseTextureFormat
)( GLcontext
*ctx
, GLint internalFormat
,
180 GLenum srcFormat
, GLenum srcType
);
181 /* This is called by the _mesa_store_tex[sub]image[123]d() fallback
182 * functions. The driver should examine <internalFormat> and return a
183 * pointer to an appropriate gl_texture_format.
186 void (*TexImage1D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
187 GLint internalFormat
,
188 GLint width
, GLint border
,
189 GLenum format
, GLenum type
, const GLvoid
*pixels
,
190 const struct gl_pixelstore_attrib
*packing
,
191 struct gl_texture_object
*texObj
,
192 struct gl_texture_image
*texImage
);
193 void (*TexImage2D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
194 GLint internalFormat
,
195 GLint width
, GLint height
, GLint border
,
196 GLenum format
, GLenum type
, const GLvoid
*pixels
,
197 const struct gl_pixelstore_attrib
*packing
,
198 struct gl_texture_object
*texObj
,
199 struct gl_texture_image
*texImage
);
200 void (*TexImage3D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
201 GLint internalFormat
,
202 GLint width
, GLint height
, GLint depth
, GLint border
,
203 GLenum format
, GLenum type
, const GLvoid
*pixels
,
204 const struct gl_pixelstore_attrib
*packing
,
205 struct gl_texture_object
*texObj
,
206 struct gl_texture_image
*texImage
);
207 /* Called by glTexImage1/2/3D.
209 * <target>, <level>, <format>, <type> and <pixels> are user specified.
210 * <packing> indicates the image packing of pixels.
211 * <texObj> is the target texture object.
212 * <texImage> is the target texture image. It will have the texture
213 * width, height, depth, border and internalFormat information.
214 * <retainInternalCopy> is returned by this function and indicates whether
215 * core Mesa should keep an internal copy of the texture image.
216 * Drivers should call a fallback routine from texstore.c if needed.
219 void (*TexSubImage1D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
220 GLint xoffset
, GLsizei width
,
221 GLenum format
, GLenum type
,
222 const GLvoid
*pixels
,
223 const struct gl_pixelstore_attrib
*packing
,
224 struct gl_texture_object
*texObj
,
225 struct gl_texture_image
*texImage
);
226 void (*TexSubImage2D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
227 GLint xoffset
, GLint yoffset
,
228 GLsizei width
, GLsizei height
,
229 GLenum format
, GLenum type
,
230 const GLvoid
*pixels
,
231 const struct gl_pixelstore_attrib
*packing
,
232 struct gl_texture_object
*texObj
,
233 struct gl_texture_image
*texImage
);
234 void (*TexSubImage3D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
235 GLint xoffset
, GLint yoffset
, GLint zoffset
,
236 GLsizei width
, GLsizei height
, GLint depth
,
237 GLenum format
, GLenum type
,
238 const GLvoid
*pixels
,
239 const struct gl_pixelstore_attrib
*packing
,
240 struct gl_texture_object
*texObj
,
241 struct gl_texture_image
*texImage
);
242 /* Called by glTexSubImage1/2/3D.
244 * <target>, <level>, <xoffset>, <yoffset>, <zoffset>, <width>, <height>,
245 * <depth>, <format>, <type> and <pixels> are user specified.
246 * <packing> indicates the image packing of pixels.
247 * <texObj> is the target texture object.
248 * <texImage> is the target texture image. It will have the texture
249 * width, height, border and internalFormat information.
250 * The driver should use a fallback routine from texstore.c if needed.
253 void (*CopyTexImage1D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
254 GLenum internalFormat
, GLint x
, GLint y
,
255 GLsizei width
, GLint border
);
256 void (*CopyTexImage2D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
257 GLenum internalFormat
, GLint x
, GLint y
,
258 GLsizei width
, GLsizei height
, GLint border
);
259 /* Called by glCopyTexImage1D and glCopyTexImage2D.
260 * Drivers should use a fallback routine from texstore.c if needed.
263 void (*CopyTexSubImage1D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
265 GLint x
, GLint y
, GLsizei width
);
266 void (*CopyTexSubImage2D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
267 GLint xoffset
, GLint yoffset
,
269 GLsizei width
, GLsizei height
);
270 void (*CopyTexSubImage3D
)( GLcontext
*ctx
, GLenum target
, GLint level
,
271 GLint xoffset
, GLint yoffset
, GLint zoffset
,
273 GLsizei width
, GLsizei height
);
274 /* Called by glCopyTexSubImage1/2/3D.
275 * Drivers should use a fallback routine from texstore.c if needed.
278 GLboolean (*TestProxyTexImage
)(GLcontext
*ctx
, GLenum target
,
279 GLint level
, GLint internalFormat
,
280 GLenum format
, GLenum type
,
281 GLint width
, GLint height
,
282 GLint depth
, GLint border
);
283 /* Called by glTexImage[123]D when user specifies a proxy texture
284 * target. Return GL_TRUE if the proxy test passes, return GL_FALSE
289 *** Compressed texture functions:
292 void (*CompressedTexImage1D
)( GLcontext
*ctx
, GLenum target
,
293 GLint level
, GLint internalFormat
,
294 GLsizei width
, GLint border
,
295 GLsizei imageSize
, const GLvoid
*data
,
296 struct gl_texture_object
*texObj
,
297 struct gl_texture_image
*texImage
);
298 void (*CompressedTexImage2D
)( GLcontext
*ctx
, GLenum target
,
299 GLint level
, GLint internalFormat
,
300 GLsizei width
, GLsizei height
, GLint border
,
301 GLsizei imageSize
, const GLvoid
*data
,
302 struct gl_texture_object
*texObj
,
303 struct gl_texture_image
*texImage
);
304 void (*CompressedTexImage3D
)( GLcontext
*ctx
, GLenum target
,
305 GLint level
, GLint internalFormat
,
306 GLsizei width
, GLsizei height
, GLsizei depth
,
308 GLsizei imageSize
, const GLvoid
*data
,
309 struct gl_texture_object
*texObj
,
310 struct gl_texture_image
*texImage
);
311 /* Called by glCompressedTexImage1/2/3D.
313 * <target>, <level>, <internalFormat>, <data> are user specified.
314 * <texObj> is the target texture object.
315 * <texImage> is the target texture image. It will have the texture
316 * width, height, depth, border and internalFormat information.
317 * <retainInternalCopy> is returned by this function and indicates whether
318 * core Mesa should keep an internal copy of the texture image.
319 * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
323 void (*CompressedTexSubImage1D
)(GLcontext
*ctx
, GLenum target
, GLint level
,
324 GLint xoffset
, GLsizei width
,
326 GLsizei imageSize
, const GLvoid
*data
,
327 struct gl_texture_object
*texObj
,
328 struct gl_texture_image
*texImage
);
329 void (*CompressedTexSubImage2D
)(GLcontext
*ctx
, GLenum target
, GLint level
,
330 GLint xoffset
, GLint yoffset
,
331 GLsizei width
, GLint height
,
333 GLsizei imageSize
, const GLvoid
*data
,
334 struct gl_texture_object
*texObj
,
335 struct gl_texture_image
*texImage
);
336 void (*CompressedTexSubImage3D
)(GLcontext
*ctx
, GLenum target
, GLint level
,
337 GLint xoffset
, GLint yoffset
, GLint zoffset
,
338 GLsizei width
, GLint height
, GLint depth
,
340 GLsizei imageSize
, const GLvoid
*data
,
341 struct gl_texture_object
*texObj
,
342 struct gl_texture_image
*texImage
);
343 /* Called by glCompressedTexSubImage1/2/3D.
345 * <target>, <level>, <x/z/zoffset>, <width>, <height>, <depth>,
346 * <imageSize>, and <data> are user specified.
347 * <texObj> is the target texture object.
348 * <texImage> is the target texture image. It will have the texture
349 * width, height, depth, border and internalFormat information.
350 * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa
354 void (*GetCompressedTexImage
)( GLcontext
*ctx
, GLenum target
,
355 GLint level
, void *image
,
356 const struct gl_texture_object
*texObj
,
357 struct gl_texture_image
*texImage
);
358 /* Called by glGetCompressedTexImageARB.
359 * <target>, <level>, <image> are specified by user.
360 * <texObj> is the source texture object.
361 * <texImage> is the source texture image.
364 GLint (*BaseCompressedTexFormat
)(GLcontext
*ctx
,
365 GLint internalFormat
);
366 /* Called to compute the base format for a specific compressed
367 * format. Return -1 if the internalFormat is not a specific
368 * compressed format that the driver recognizes.
369 * Example: if internalFormat==GL_COMPRESSED_RGB_FXT1_3DFX, return GL_RGB.
372 GLint (*CompressedTextureSize
)(GLcontext
*ctx
,
373 const struct gl_texture_image
*texImage
);
377 * return value differences between this function and
378 * SpecificCompressedTexFormat below.
381 GLint (*SpecificCompressedTexFormat
)(GLcontext
*ctx
,
382 GLint internalFormat
,
391 /* Called to turn a generic texture format into a specific
392 * texture format. For example, if a driver implements
393 * GL_3DFX_texture_compression_FXT1, this would map
394 * GL_COMPRESSED_RGBA_ARB to GL_COMPRESSED_RGBA_FXT1_3DFX.
396 * If the driver does not know how to handle the compressed
397 * format, then just return the generic format, and Mesa will
398 * do the right thing with it.
404 *** Texture object functions:
407 void (*BindTexture
)( GLcontext
*ctx
, GLenum target
,
408 struct gl_texture_object
*tObj
);
409 /* Called by glBindTexture().
412 void (*CreateTexture
)( GLcontext
*ctx
, struct gl_texture_object
*tObj
);
413 /* Called when a texture object is created.
416 void (*DeleteTexture
)( GLcontext
*ctx
, struct gl_texture_object
*tObj
);
417 /* Called when a texture object is about to be deallocated. Driver
418 * should free anything attached to the DriverData pointers.
421 GLboolean (*IsTextureResident
)( GLcontext
*ctx
,
422 struct gl_texture_object
*t
);
423 /* Called by glAreTextureResident().
426 void (*PrioritizeTexture
)( GLcontext
*ctx
, struct gl_texture_object
*t
,
428 /* Called by glPrioritizeTextures().
431 void (*ActiveTexture
)( GLcontext
*ctx
, GLuint texUnitNumber
);
432 /* Called by glActiveTextureARB to set current texture unit.
435 void (*UpdateTexturePalette
)( GLcontext
*ctx
,
436 struct gl_texture_object
*tObj
);
437 /* Called when the texture's color lookup table is changed.
438 * If tObj is NULL then the shared texture palette ctx->Texture.Palette
443 *** Imaging functionality:
445 void (*CopyColorTable
)( GLcontext
*ctx
,
446 GLenum target
, GLenum internalformat
,
447 GLint x
, GLint y
, GLsizei width
);
449 void (*CopyColorSubTable
)( GLcontext
*ctx
,
450 GLenum target
, GLsizei start
,
451 GLint x
, GLint y
, GLsizei width
);
453 void (*CopyConvolutionFilter1D
)( GLcontext
*ctx
, GLenum target
,
454 GLenum internalFormat
,
455 GLint x
, GLint y
, GLsizei width
);
457 void (*CopyConvolutionFilter2D
)( GLcontext
*ctx
, GLenum target
,
458 GLenum internalFormat
,
460 GLsizei width
, GLsizei height
);
465 *** State-changing functions (drawing functions are above)
467 *** These functions are called by their corresponding OpenGL API functions.
468 *** They're ALSO called by the gl_PopAttrib() function!!!
469 *** May add more functions like these to the device driver in the future.
471 void (*AlphaFunc
)(GLcontext
*ctx
, GLenum func
, GLchan ref
);
472 void (*BlendColor
)(GLcontext
*ctx
, const GLfloat color
[4]);
473 void (*BlendEquation
)(GLcontext
*ctx
, GLenum mode
);
474 void (*BlendFunc
)(GLcontext
*ctx
, GLenum sfactor
, GLenum dfactor
);
475 void (*BlendFuncSeparate
)(GLcontext
*ctx
,
476 GLenum sfactorRGB
, GLenum dfactorRGB
,
477 GLenum sfactorA
, GLenum dfactorA
);
478 void (*ClearColor
)(GLcontext
*ctx
, const GLchan color
[4]);
479 void (*ClearDepth
)(GLcontext
*ctx
, GLclampd d
);
480 void (*ClearIndex
)(GLcontext
*ctx
, GLuint index
);
481 void (*ClearStencil
)(GLcontext
*ctx
, GLint s
);
482 void (*ClipPlane
)(GLcontext
*ctx
, GLenum plane
, const GLfloat
*equation
);
483 void (*ColorMask
)(GLcontext
*ctx
, GLboolean rmask
, GLboolean gmask
,
484 GLboolean bmask
, GLboolean amask
);
485 void (*ColorMaterial
)(GLcontext
*ctx
, GLenum face
, GLenum mode
);
486 void (*CullFace
)(GLcontext
*ctx
, GLenum mode
);
487 void (*FrontFace
)(GLcontext
*ctx
, GLenum mode
);
488 void (*DepthFunc
)(GLcontext
*ctx
, GLenum func
);
489 void (*DepthMask
)(GLcontext
*ctx
, GLboolean flag
);
490 void (*DepthRange
)(GLcontext
*ctx
, GLclampd nearval
, GLclampd farval
);
491 void (*Enable
)(GLcontext
* ctx
, GLenum cap
, GLboolean state
);
492 void (*Fogfv
)(GLcontext
*ctx
, GLenum pname
, const GLfloat
*params
);
493 void (*Hint
)(GLcontext
*ctx
, GLenum target
, GLenum mode
);
494 void (*IndexMask
)(GLcontext
*ctx
, GLuint mask
);
495 void (*Lightfv
)(GLcontext
*ctx
, GLenum light
,
496 GLenum pname
, const GLfloat
*params
);
497 void (*LightModelfv
)(GLcontext
*ctx
, GLenum pname
, const GLfloat
*params
);
498 void (*LineStipple
)(GLcontext
*ctx
, GLint factor
, GLushort pattern
);
499 void (*LineWidth
)(GLcontext
*ctx
, GLfloat width
);
500 void (*LogicOpcode
)(GLcontext
*ctx
, GLenum opcode
);
501 void (*PointParameterfv
)(GLcontext
*ctx
, GLenum pname
,
502 const GLfloat
*params
);
503 void (*PointSize
)(GLcontext
*ctx
, GLfloat size
);
504 void (*PolygonMode
)(GLcontext
*ctx
, GLenum face
, GLenum mode
);
505 void (*PolygonOffset
)(GLcontext
*ctx
, GLfloat factor
, GLfloat units
);
506 void (*PolygonStipple
)(GLcontext
*ctx
, const GLubyte
*mask
);
507 void (*RenderMode
)(GLcontext
*ctx
, GLenum mode
);
508 void (*Scissor
)(GLcontext
*ctx
, GLint x
, GLint y
, GLsizei w
, GLsizei h
);
509 void (*ShadeModel
)(GLcontext
*ctx
, GLenum mode
);
510 void (*StencilFunc
)(GLcontext
*ctx
, GLenum func
, GLint ref
, GLuint mask
);
511 void (*StencilMask
)(GLcontext
*ctx
, GLuint mask
);
512 void (*StencilOp
)(GLcontext
*ctx
, GLenum fail
, GLenum zfail
, GLenum zpass
);
513 void (*TexGen
)(GLcontext
*ctx
, GLenum coord
, GLenum pname
,
514 const GLfloat
*params
);
515 void (*TexEnv
)(GLcontext
*ctx
, GLenum target
, GLenum pname
,
516 const GLfloat
*param
);
517 void (*TexParameter
)(GLcontext
*ctx
, GLenum target
,
518 struct gl_texture_object
*texObj
,
519 GLenum pname
, const GLfloat
*params
);
520 void (*TextureMatrix
)(GLcontext
*ctx
, GLuint unit
, const GLmatrix
*mat
);
521 void (*Viewport
)(GLcontext
*ctx
, GLint x
, GLint y
, GLsizei w
, GLsizei h
);
525 *** Vertex array functions
527 *** Called by the corresponding OpenGL functions.
529 void (*VertexPointer
)(GLcontext
*ctx
, GLint size
, GLenum type
,
530 GLsizei stride
, const GLvoid
*ptr
);
531 void (*NormalPointer
)(GLcontext
*ctx
, GLenum type
,
532 GLsizei stride
, const GLvoid
*ptr
);
533 void (*ColorPointer
)(GLcontext
*ctx
, GLint size
, GLenum type
,
534 GLsizei stride
, const GLvoid
*ptr
);
535 void (*FogCoordPointer
)(GLcontext
*ctx
, GLenum type
,
536 GLsizei stride
, const GLvoid
*ptr
);
537 void (*IndexPointer
)(GLcontext
*ctx
, GLenum type
,
538 GLsizei stride
, const GLvoid
*ptr
);
539 void (*SecondaryColorPointer
)(GLcontext
*ctx
, GLint size
, GLenum type
,
540 GLsizei stride
, const GLvoid
*ptr
);
541 void (*TexCoordPointer
)(GLcontext
*ctx
, GLint size
, GLenum type
,
542 GLsizei stride
, const GLvoid
*ptr
);
543 void (*EdgeFlagPointer
)(GLcontext
*ctx
, GLsizei stride
, const GLvoid
*ptr
);
544 void (*VertexAttribPointer
)(GLcontext
*ctx
, GLuint index
, GLint size
,
545 GLenum type
, GLsizei stride
, const GLvoid
*ptr
);
548 /*** State-query functions
550 *** Return GL_TRUE if query was completed, GL_FALSE otherwise.
552 GLboolean (*GetBooleanv
)(GLcontext
*ctx
, GLenum pname
, GLboolean
*result
);
553 GLboolean (*GetDoublev
)(GLcontext
*ctx
, GLenum pname
, GLdouble
*result
);
554 GLboolean (*GetFloatv
)(GLcontext
*ctx
, GLenum pname
, GLfloat
*result
);
555 GLboolean (*GetIntegerv
)(GLcontext
*ctx
, GLenum pname
, GLint
*result
);
556 GLboolean (*GetPointerv
)(GLcontext
*ctx
, GLenum pname
, GLvoid
**result
);
561 *** Support for multiple t&l engines
565 /* Bitmask of state changes that require the current tnl module to be
566 * validated, using ValidateTnlModule() below.
569 void (*ValidateTnlModule
)( GLcontext
*ctx
, GLuint new_state
);
570 /* Validate the current tnl module. This is called directly after
571 * UpdateState() when a state change that has occured matches the
572 * NeedValidate bitmask above. This ensures all computed values are
573 * up to date, thus allowing the driver to decide if the current tnl
574 * module needs to be swapped out.
576 * This must be non-NULL if a driver installs a custom tnl module and
577 * sets the NeedValidate bitmask, but may be NULL otherwise.
581 #define PRIM_OUTSIDE_BEGIN_END GL_POLYGON+1
582 #define PRIM_INSIDE_UNKNOWN_PRIM GL_POLYGON+2
583 #define PRIM_UNKNOWN GL_POLYGON+3
585 GLuint CurrentExecPrimitive
;
586 /* Set by the driver-supplied t&l engine. Set to
587 * PRIM_OUTSIDE_BEGIN_END when outside begin/end.
590 GLuint CurrentSavePrimitive
;
591 /* Current state of an in-progress compilation. May take on any of
592 * the additional values defined above.
596 #define FLUSH_STORED_VERTICES 0x1
597 #define FLUSH_UPDATE_CURRENT 0x2
599 /* Set by the driver-supplied t&l engine whenever vertices are
600 * buffered between begin/end objects or ctx->Current is not uptodate.
602 * The FlushVertices() call below may be used to resolve
606 void (*FlushVertices
)( GLcontext
*ctx
, GLuint flags
);
607 /* If inside begin/end, ASSERT(0).
609 * if (flags & FLUSH_STORED_VERTICES) flushes any buffered vertices,
610 * if (flags & FLUSH_UPDATE_CURRENT) updates ctx->Current
611 * and ctx->Light.Material
613 * Note that the default t&l engine never clears the
614 * FLUSH_UPDATE_CURRENT bit, even after performing the update.
617 void (*LightingSpaceChange
)( GLcontext
*ctx
);
618 /* Notify driver that the special derived value _NeedEyeCoords has
622 void (*NewList
)( GLcontext
*ctx
, GLuint list
, GLenum mode
);
623 void (*EndList
)( GLcontext
*ctx
);
624 /* Let the t&l component know what is going on with display lists
625 * in time to make changes to dispatch tables, etc.
626 * Called by glNewList() and glEndList(), respectively.
629 void (*BeginCallList
)( GLcontext
*ctx
, GLuint list
);
630 void (*EndCallList
)( GLcontext
*ctx
);
631 /* Notify the t&l component before and after calling a display list.
632 * Called by glCallList(s), but not recursively.
635 void (*MakeCurrent
)( GLcontext
*ctx
, GLframebuffer
*drawBuffer
,
636 GLframebuffer
*readBuffer
);
637 /* Let the t&l component know when the context becomes current.
641 void (*LockArraysEXT
)( GLcontext
*ctx
, GLint first
, GLsizei count
);
642 void (*UnlockArraysEXT
)( GLcontext
*ctx
);
643 /* Called by glLockArraysEXT() and glUnlockArraysEXT(), respectively.
650 * Transform/Clip/Lighting interface
653 void (*ArrayElement
)( GLint
); /* NOTE */
654 void (*Color3f
)( GLfloat
, GLfloat
, GLfloat
);
655 void (*Color3fv
)( const GLfloat
* );
656 void (*Color3ub
)( GLubyte
, GLubyte
, GLubyte
);
657 void (*Color3ubv
)( const GLubyte
* );
658 void (*Color4f
)( GLfloat
, GLfloat
, GLfloat
, GLfloat
);
659 void (*Color4fv
)( const GLfloat
* );
660 void (*Color4ub
)( GLubyte
, GLubyte
, GLubyte
, GLubyte
);
661 void (*Color4ubv
)( const GLubyte
* );
662 void (*EdgeFlag
)( GLboolean
);
663 void (*EdgeFlagv
)( const GLboolean
* );
664 void (*EvalCoord1f
)( GLfloat
); /* NOTE */
665 void (*EvalCoord1fv
)( const GLfloat
* ); /* NOTE */
666 void (*EvalCoord2f
)( GLfloat
, GLfloat
); /* NOTE */
667 void (*EvalCoord2fv
)( const GLfloat
* ); /* NOTE */
668 void (*EvalPoint1
)( GLint
); /* NOTE */
669 void (*EvalPoint2
)( GLint
, GLint
); /* NOTE */
670 void (*FogCoordfEXT
)( GLfloat
);
671 void (*FogCoordfvEXT
)( const GLfloat
* );
672 void (*Indexi
)( GLint
);
673 void (*Indexiv
)( const GLint
* );
674 void (*Materialfv
)( GLenum face
, GLenum pname
, const GLfloat
* ); /* NOTE */
675 void (*MultiTexCoord1fARB
)( GLenum
, GLfloat
);
676 void (*MultiTexCoord1fvARB
)( GLenum
, const GLfloat
* );
677 void (*MultiTexCoord2fARB
)( GLenum
, GLfloat
, GLfloat
);
678 void (*MultiTexCoord2fvARB
)( GLenum
, const GLfloat
* );
679 void (*MultiTexCoord3fARB
)( GLenum
, GLfloat
, GLfloat
, GLfloat
);
680 void (*MultiTexCoord3fvARB
)( GLenum
, const GLfloat
* );
681 void (*MultiTexCoord4fARB
)( GLenum
, GLfloat
, GLfloat
, GLfloat
, GLfloat
);
682 void (*MultiTexCoord4fvARB
)( GLenum
, const GLfloat
* );
683 void (*Normal3f
)( GLfloat
, GLfloat
, GLfloat
);
684 void (*Normal3fv
)( const GLfloat
* );
685 void (*SecondaryColor3fEXT
)( GLfloat
, GLfloat
, GLfloat
);
686 void (*SecondaryColor3fvEXT
)( const GLfloat
* );
687 void (*SecondaryColor3ubEXT
)( GLubyte
, GLubyte
, GLubyte
);
688 void (*SecondaryColor3ubvEXT
)( const GLubyte
* );
689 void (*TexCoord1f
)( GLfloat
);
690 void (*TexCoord1fv
)( const GLfloat
* );
691 void (*TexCoord2f
)( GLfloat
, GLfloat
);
692 void (*TexCoord2fv
)( const GLfloat
* );
693 void (*TexCoord3f
)( GLfloat
, GLfloat
, GLfloat
);
694 void (*TexCoord3fv
)( const GLfloat
* );
695 void (*TexCoord4f
)( GLfloat
, GLfloat
, GLfloat
, GLfloat
);
696 void (*TexCoord4fv
)( const GLfloat
* );
697 void (*Vertex2f
)( GLfloat
, GLfloat
);
698 void (*Vertex2fv
)( const GLfloat
* );
699 void (*Vertex3f
)( GLfloat
, GLfloat
, GLfloat
);
700 void (*Vertex3fv
)( const GLfloat
* );
701 void (*Vertex4f
)( GLfloat
, GLfloat
, GLfloat
, GLfloat
);
702 void (*Vertex4fv
)( const GLfloat
* );
703 void (*CallList
)( GLuint
); /* NOTE */
704 void (*Begin
)( GLenum
);
706 void (*VertexAttrib4fNV
)( GLuint index
, GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
);
707 void (*VertexAttrib4fvNV
)( GLuint index
, const GLfloat
*v
);
709 /* Drivers present a reduced set of the functions possible in
710 * begin/end objects. Core mesa provides translation stubs for the
711 * remaining functions to map down to these entrypoints.
713 * These are the initial values to be installed into dispatch by
714 * mesa. If the t&l driver wants to modify the dispatch table
715 * while installed, it must do so itself. It would be possible for
716 * the vertexformat to install it's own initial values for these
717 * functions, but this way there is an obvious list of what is
718 * expected of the driver.
720 * If the driver wants to hook in entrypoints other than those
721 * listed above, it must restore them to their original values in
722 * the disable() callback, below.
725 void (*Rectf
)( GLfloat
, GLfloat
, GLfloat
, GLfloat
);
729 void (*DrawArrays
)( GLenum mode
, GLint start
, GLsizei count
);
730 void (*DrawElements
)( GLenum mode
, GLsizei count
, GLenum type
,
731 const GLvoid
*indices
);
732 void (*DrawRangeElements
)( GLenum mode
, GLuint start
,
733 GLuint end
, GLsizei count
,
734 GLenum type
, const GLvoid
*indices
);
735 /* These may or may not belong here. Heuristic: If an array is
736 * enabled, the installed vertex format should support that array and
737 * it's current size natively.
740 void (*EvalMesh1
)( GLenum mode
, GLint i1
, GLint i2
);
741 void (*EvalMesh2
)( GLenum mode
, GLint i1
, GLint i2
, GLint j1
, GLint j2
);
742 /* If you don't support eval, fallback to the default vertex format
743 * on receiving an eval call and use the pipeline mechanism to
744 * provide partial t&l acceleration.
746 * Mesa will provide a set of helper functions to do eval within
747 * accelerated vertex formats, eventually...
750 GLboolean prefer_float_colors
;
751 /* Should core try to send colors to glColor4f or glColor4chan,
752 * where it has a choice?
757 #endif /* DD_INCLUDED */