2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * OpenGL (Mesa) interface for fbdev.
28 * For info about fbdev:
29 * http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html
32 * Colours 640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200
33 * --------+--------------------------------------------------------------
34 * 4 bits | ? ? 0x302 ? ? ? ?
35 * 8 bits | 0x300 0x301 0x303 0x305 0x161 0x307 0x31C
36 * 15 bits | ? 0x310 0x313 0x316 0x162 0x319 0x31D
37 * 16 bits | ? 0x311 0x314 0x317 0x163 0x31A 0x31E
38 * 24 bits | ? 0x312 0x315 0x318 ? 0x31B 0x31F
39 * 32 bits | ? ? ? ? 0x164 ?
43 #ifdef USE_GLFBDEV_DRIVER
47 #include "GL/glfbdev.h"
50 #include "extensions.h"
52 #include "texformat.h"
55 #include "array_cache/acache.h"
56 #include "swrast/swrast.h"
57 #include "swrast_setup/swrast_setup.h"
59 #include "tnl/t_context.h"
60 #include "tnl/t_pipeline.h"
61 #include "drivers/common/driverfuncs.h"
72 * Derived from Mesa's GLvisual class.
74 struct GLFBDevVisualRec
{
75 GLvisual glvisual
; /* base class */
76 struct fb_fix_screeninfo fix
;
77 struct fb_var_screeninfo var
;
82 * Derived from Mesa's GLframebuffer class.
84 struct GLFBDevBufferRec
{
85 GLframebuffer glframebuffer
; /* base class */
86 GLFBDevVisualPtr visual
;
87 struct fb_fix_screeninfo fix
;
88 struct fb_var_screeninfo var
;
93 GLuint rowStride
; /* in bytes */
94 GLubyte
*frontBottom
; /* pointer to last row */
95 GLubyte
*backBottom
; /* pointer to last row */
96 GLubyte
*curBottom
; /* = frontBottom or backBottom */
97 GLboolean mallocBackBuffer
;
101 * Derived from Mesa's GLcontext class.
103 struct GLFBDevContextRec
{
104 GLcontext glcontext
; /* base class */
105 GLFBDevVisualPtr visual
;
106 GLFBDevBufferPtr drawBuffer
;
107 GLFBDevBufferPtr readBuffer
;
108 GLFBDevBufferPtr curBuffer
;
113 #define GLFBDEV_CONTEXT(CTX) ((GLFBDevContextPtr) (CTX))
114 #define GLFBDEV_BUFFER(BUF) ((GLFBDevBufferPtr) (BUF))
117 /**********************************************************************/
118 /* Internal device driver functions */
119 /**********************************************************************/
122 static const GLubyte
*
123 get_string(GLcontext
*ctx
, GLenum pname
)
128 return (const GLubyte
*) "Mesa glfbdev";
136 update_state( GLcontext
*ctx
, GLuint new_state
)
138 /* not much to do here - pass it on */
139 _swrast_InvalidateState( ctx
, new_state
);
140 _swsetup_InvalidateState( ctx
, new_state
);
141 _ac_InvalidateState( ctx
, new_state
);
142 _tnl_InvalidateState( ctx
, new_state
);
147 get_buffer_size( GLframebuffer
*buffer
, GLuint
*width
, GLuint
*height
)
149 const GLFBDevBufferPtr fbdevbuffer
= (GLFBDevBufferPtr
) buffer
;
150 *width
= fbdevbuffer
->var
.xres_virtual
;
151 *height
= fbdevbuffer
->var
.yres_virtual
;
156 viewport(GLcontext
*ctx
, GLint x
, GLint y
, GLsizei w
, GLsizei h
)
158 /* poll for window size change and realloc software Z/stencil/etc if needed */
159 _mesa_ResizeBuffersMESA();
163 /* specifies the buffer for swrast span rendering/reading */
165 set_buffer( GLcontext
*ctx
, GLframebuffer
*buffer
, GLuint bufferBit
)
167 GLFBDevContextPtr fbdevctx
= GLFBDEV_CONTEXT(ctx
);
168 GLFBDevBufferPtr fbdevbuf
= GLFBDEV_BUFFER(buffer
);
169 fbdevctx
->curBuffer
= fbdevbuf
;
171 case DD_FRONT_LEFT_BIT
:
172 fbdevbuf
->curBottom
= fbdevbuf
->frontBottom
;
174 case DD_BACK_LEFT_BIT
:
175 fbdevbuf
->curBottom
= fbdevbuf
->backBottom
;
178 _mesa_problem(ctx
, "bad bufferBit in set_buffer()");
184 * Generate code for span functions.
188 #define NAME(PREFIX) PREFIX##_B8G8R8
190 const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
191 const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
192 #define INIT_PIXEL_PTR(P, X, Y) \
193 GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 3
194 #define INC_PIXEL_PTR(P) P += 3
195 #define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
196 P[0] = B; P[1] = G; P[2] = R
197 #define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
198 P[0] = B; P[1] = G; P[2] = R
199 #define FETCH_RGBA_PIXEL(R, G, B, A, P) \
200 R = P[2]; G = P[1]; B = P[0]; A = CHAN_MAX
202 #include "swrast/s_spantemp.h"
206 #define NAME(PREFIX) PREFIX##_B8G8R8A8
208 const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
209 const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
210 #define INIT_PIXEL_PTR(P, X, Y) \
211 GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 4
212 #define INC_PIXEL_PTR(P) P += 4
213 #define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
214 P[0] = B; P[1] = G; P[2] = R; P[3] = 255
215 #define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
216 P[0] = B; P[1] = G; P[2] = R; P[3] = A
217 #define FETCH_RGBA_PIXEL(R, G, B, A, P) \
218 R = P[2]; G = P[1]; B = P[0]; A = P[3]
220 #include "swrast/s_spantemp.h"
223 /* 16-bit BGR (XXX implement dithering someday) */
224 #define NAME(PREFIX) PREFIX##_B5G6R5
226 const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
227 const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
228 #define INIT_PIXEL_PTR(P, X, Y) \
229 GLushort *P = (GLushort *) (fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 2)
230 #define INC_PIXEL_PTR(P) P += 1
231 #define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
232 *P = ( (((R) & 0xf8) << 8) | (((G) & 0xfc) << 3) | ((B) >> 3) )
233 #define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
234 *P = ( (((R) & 0xf8) << 8) | (((G) & 0xfc) << 3) | ((B) >> 3) )
235 #define FETCH_RGBA_PIXEL(R, G, B, A, P) \
236 R = ( (((*P) >> 8) & 0xf8) | (((*P) >> 11) & 0x7) ); \
237 G = ( (((*P) >> 3) & 0xfc) | (((*P) >> 5) & 0x3) ); \
238 B = ( (((*P) << 3) & 0xf8) | (((*P) ) & 0x7) ); \
241 #include "swrast/s_spantemp.h"
244 /* 15-bit BGR (XXX implement dithering someday) */
245 #define NAME(PREFIX) PREFIX##_B5G5R5
247 const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
248 const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
249 #define INIT_PIXEL_PTR(P, X, Y) \
250 GLushort *P = (GLushort *) (fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 2)
251 #define INC_PIXEL_PTR(P) P += 1
252 #define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
253 *P = ( (((R) & 0xf8) << 7) | (((G) & 0xf8) << 2) | ((B) >> 3) )
254 #define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
255 *P = ( (((R) & 0xf8) << 7) | (((G) & 0xf8) << 2) | ((B) >> 3) )
256 #define FETCH_RGBA_PIXEL(R, G, B, A, P) \
257 R = ( (((*P) >> 7) & 0xf8) | (((*P) >> 10) & 0x7) ); \
258 G = ( (((*P) >> 2) & 0xf8) | (((*P) >> 5) & 0x7) ); \
259 B = ( (((*P) << 3) & 0xf8) | (((*P) ) & 0x7) ); \
262 #include "swrast/s_spantemp.h"
265 /* 8-bit color index */
266 #define NAME(PREFIX) PREFIX##_CI8
268 const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
269 const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
270 #define INIT_PIXEL_PTR(P, X, Y) \
271 GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X)
272 #define INC_PIXEL_PTR(P) P += 1
273 #define STORE_CI_PIXEL(P, CI) \
275 #define FETCH_CI_PIXEL(CI, P) \
278 #include "swrast/s_spantemp.h"
280 /**********************************************************************/
281 /* Public API functions */
282 /**********************************************************************/
286 glFBDevGetString( int str
)
290 return "Mesa Project";
291 case GLFBDEV_VERSION
:
300 glFBDevGetProcAddress( const char *procName
)
302 struct name_address
{
306 static const struct name_address functions
[] = {
307 { "glFBDevGetString", (void *) glFBDevGetString
},
308 { "glFBDevGetProcAddress", (void *) glFBDevGetProcAddress
},
309 { "glFBDevCreateVisual", (void *) glFBDevCreateVisual
},
310 { "glFBDevDestroyVisual", (void *) glFBDevDestroyVisual
},
311 { "glFBDevGetVisualAttrib", (void *) glFBDevGetVisualAttrib
},
312 { "glFBDevCreateBuffer", (void *) glFBDevCreateBuffer
},
313 { "glFBDevDestroyBuffer", (void *) glFBDevDestroyBuffer
},
314 { "glFBDevGetBufferAttrib", (void *) glFBDevGetBufferAttrib
},
315 { "glFBDevGetCurrentDrawBuffer", (void *) glFBDevGetCurrentDrawBuffer
},
316 { "glFBDevGetCurrentReadBuffer", (void *) glFBDevGetCurrentReadBuffer
},
317 { "glFBDevSwapBuffers", (void *) glFBDevSwapBuffers
},
318 { "glFBDevCreateContext", (void *) glFBDevCreateContext
},
319 { "glFBDevDestroyContext", (void *) glFBDevDestroyContext
},
320 { "glFBDevGetContextAttrib", (void *) glFBDevGetContextAttrib
},
321 { "glFBDevGetCurrentContext", (void *) glFBDevGetCurrentContext
},
322 { "glFBDevMakeCurrent", (void *) glFBDevMakeCurrent
},
325 const struct name_address
*entry
;
326 for (entry
= functions
; entry
->name
; entry
++) {
327 if (_mesa_strcmp(entry
->name
, procName
) == 0) {
331 return _glapi_get_proc_address(procName
);
336 glFBDevCreateVisual( const struct fb_fix_screeninfo
*fixInfo
,
337 const struct fb_var_screeninfo
*varInfo
,
340 GLFBDevVisualPtr vis
;
342 GLboolean rgbFlag
= GL_TRUE
, dbFlag
= GL_FALSE
, stereoFlag
= GL_FALSE
;
343 GLint redBits
= 0, greenBits
= 0, blueBits
= 0, alphaBits
= 0;
344 GLint indexBits
= 0, depthBits
= 0, stencilBits
= 0;
345 GLint accumRedBits
= 0, accumGreenBits
= 0;
346 GLint accumBlueBits
= 0, accumAlphaBits
= 0;
347 GLint numSamples
= 0;
352 vis
= CALLOC_STRUCT(GLFBDevVisualRec
);
356 vis
->fix
= *fixInfo
; /* struct assignment */
357 vis
->var
= *varInfo
; /* struct assignment */
359 for (attrib
= attribs
; attrib
&& *attrib
!= GLFBDEV_NONE
; attrib
++) {
361 case GLFBDEV_DOUBLE_BUFFER
:
364 case GLFBDEV_COLOR_INDEX
:
367 case GLFBDEV_DEPTH_SIZE
:
368 depthBits
= attrib
[1];
371 case GLFBDEV_STENCIL_SIZE
:
372 stencilBits
= attrib
[1];
375 case GLFBDEV_ACCUM_SIZE
:
376 accumRedBits
= accumGreenBits
= accumBlueBits
= accumAlphaBits
381 /* ignored for now */
384 /* unexpected token */
391 redBits
= varInfo
->red
.length
;
392 greenBits
= varInfo
->green
.length
;
393 blueBits
= varInfo
->blue
.length
;
394 alphaBits
= varInfo
->transp
.length
;
396 if ((fixInfo
->visual
== FB_VISUAL_TRUECOLOR
||
397 fixInfo
->visual
== FB_VISUAL_DIRECTCOLOR
)
398 && varInfo
->bits_per_pixel
== 24
399 && varInfo
->red
.offset
== 16
400 && varInfo
->green
.offset
== 8
401 && varInfo
->blue
.offset
== 0) {
402 vis
->pixelFormat
= PF_B8G8R8
;
404 else if ((fixInfo
->visual
== FB_VISUAL_TRUECOLOR
||
405 fixInfo
->visual
== FB_VISUAL_DIRECTCOLOR
)
406 && varInfo
->bits_per_pixel
== 32
407 && varInfo
->red
.offset
== 16
408 && varInfo
->green
.offset
== 8
409 && varInfo
->blue
.offset
== 0
410 && varInfo
->transp
.offset
== 24) {
411 vis
->pixelFormat
= PF_B8G8R8A8
;
413 else if ((fixInfo
->visual
== FB_VISUAL_TRUECOLOR
||
414 fixInfo
->visual
== FB_VISUAL_DIRECTCOLOR
)
415 && varInfo
->bits_per_pixel
== 16
416 && varInfo
->red
.offset
== 11
417 && varInfo
->green
.offset
== 5
418 && varInfo
->blue
.offset
== 0) {
419 vis
->pixelFormat
= PF_B5G6R5
;
421 else if ((fixInfo
->visual
== FB_VISUAL_TRUECOLOR
||
422 fixInfo
->visual
== FB_VISUAL_DIRECTCOLOR
)
423 && varInfo
->bits_per_pixel
== 16
424 && varInfo
->red
.offset
== 10
425 && varInfo
->green
.offset
== 5
426 && varInfo
->blue
.offset
== 0) {
427 vis
->pixelFormat
= PF_B5G5R5
;
430 _mesa_problem(NULL
, "Unsupported fbdev RGB visual/bitdepth!\n");
432 printf("fixInfo->visual = 0x%x\n", fixInfo->visual);
433 printf("varInfo->bits_per_pixel = %d\n", varInfo->bits_per_pixel);
434 printf("varInfo->red.offset = %d\n", varInfo->red.offset);
435 printf("varInfo->green.offset = %d\n", varInfo->green.offset);
436 printf("varInfo->blue.offset = %d\n", varInfo->blue.offset);
443 indexBits
= varInfo
->bits_per_pixel
;
444 if ((fixInfo
->visual
== FB_VISUAL_PSEUDOCOLOR
||
445 fixInfo
->visual
== FB_VISUAL_STATIC_PSEUDOCOLOR
)
446 && varInfo
->bits_per_pixel
== 8) {
447 vis
->pixelFormat
= PF_CI8
;
450 _mesa_problem(NULL
, "Unsupported fbdev CI visual/bitdepth!\n");
456 if (!_mesa_initialize_visual(&vis
->glvisual
, rgbFlag
, dbFlag
, stereoFlag
,
457 redBits
, greenBits
, blueBits
, alphaBits
,
458 indexBits
, depthBits
, stencilBits
,
459 accumRedBits
, accumGreenBits
,
460 accumBlueBits
, accumAlphaBits
,
462 /* something was invalid */
472 glFBDevDestroyVisual( GLFBDevVisualPtr visual
)
480 glFBDevGetVisualAttrib( const GLFBDevVisualPtr visual
, int attrib
)
490 glFBDevCreateBuffer( const struct fb_fix_screeninfo
*fixInfo
,
491 const struct fb_var_screeninfo
*varInfo
,
492 const GLFBDevVisualPtr visual
,
493 void *frontBuffer
, void *backBuffer
, size_t size
)
495 GLFBDevBufferPtr buf
;
501 if (visual
->fix
.visual
!= fixInfo
->visual
||
502 visual
->fix
.type
!= fixInfo
->type
||
503 visual
->var
.bits_per_pixel
!= varInfo
->bits_per_pixel
||
504 visual
->var
.grayscale
!= varInfo
->grayscale
||
505 visual
->var
.red
.offset
!= varInfo
->red
.offset
||
506 visual
->var
.green
.offset
!= varInfo
->green
.offset
||
507 visual
->var
.blue
.offset
!= varInfo
->blue
.offset
||
508 visual
->var
.transp
.offset
!= varInfo
->transp
.offset
) {
509 /* visual mismatch! */
513 buf
= CALLOC_STRUCT(GLFBDevBufferRec
);
517 _mesa_initialize_framebuffer(&buf
->glframebuffer
, &visual
->glvisual
,
518 visual
->glvisual
.haveDepthBuffer
,
519 visual
->glvisual
.haveStencilBuffer
,
520 visual
->glvisual
.haveAccumBuffer
,
523 buf
->fix
= *fixInfo
; /* struct assignment */
524 buf
->var
= *varInfo
; /* struct assignment */
525 buf
->visual
= visual
; /* ptr assignment */
526 buf
->frontStart
= frontBuffer
;
528 buf
->bytesPerPixel
= visual
->var
.bits_per_pixel
/ 8;
529 buf
->rowStride
= visual
->var
.xres_virtual
* buf
->bytesPerPixel
;
530 buf
->frontBottom
= (GLubyte
*) buf
->frontStart
531 + (visual
->var
.yres_virtual
- 1) * buf
->rowStride
;
533 if (visual
->glvisual
.doubleBufferMode
) {
535 buf
->backStart
= backBuffer
;
536 buf
->mallocBackBuffer
= GL_FALSE
;
539 buf
->backStart
= _mesa_malloc(size
);
540 if (!buf
->backStart
) {
541 _mesa_free_framebuffer_data(&buf
->glframebuffer
);
545 buf
->mallocBackBuffer
= GL_TRUE
;
547 buf
->backBottom
= (GLubyte
*) buf
->backStart
548 + (visual
->var
.yres_virtual
- 1) * buf
->rowStride
;
549 buf
->curBottom
= buf
->backBottom
;
552 buf
->backStart
= NULL
;
553 buf
->mallocBackBuffer
= GL_FALSE
;
554 buf
->backBottom
= NULL
;
555 buf
->curBottom
= buf
->frontBottom
;
563 glFBDevDestroyBuffer( GLFBDevBufferPtr buffer
)
566 /* check if destroying the current buffer */
567 GLFBDevBufferPtr curDraw
= glFBDevGetCurrentDrawBuffer();
568 GLFBDevBufferPtr curRead
= glFBDevGetCurrentReadBuffer();
569 if (buffer
== curDraw
|| buffer
== curRead
) {
570 glFBDevMakeCurrent( NULL
, NULL
, NULL
);
572 if (buffer
->mallocBackBuffer
) {
573 _mesa_free(buffer
->backStart
);
575 /* free the software depth, stencil, accum buffers */
576 _mesa_free_framebuffer_data(&buffer
->glframebuffer
);
583 glFBDevGetBufferAttrib( const GLFBDevBufferPtr buffer
, int attrib
)
592 glFBDevGetCurrentDrawBuffer( void )
594 GLFBDevContextPtr fbdevctx
= glFBDevGetCurrentContext();
596 return fbdevctx
->drawBuffer
;
603 glFBDevGetCurrentReadBuffer( void )
605 GLFBDevContextPtr fbdevctx
= glFBDevGetCurrentContext();
607 return fbdevctx
->readBuffer
;
614 glFBDevSwapBuffers( GLFBDevBufferPtr buffer
)
616 GLFBDevContextPtr fbdevctx
= glFBDevGetCurrentContext();
618 if (!buffer
|| !buffer
->visual
->glvisual
.doubleBufferMode
)
621 /* check if swapping currently bound buffer */
622 if (fbdevctx
->drawBuffer
== buffer
) {
623 /* flush pending rendering */
624 _mesa_notifySwapBuffers(&fbdevctx
->glcontext
);
627 ASSERT(buffer
->frontStart
);
628 ASSERT(buffer
->backStart
);
629 _mesa_memcpy(buffer
->frontStart
, buffer
->backStart
, buffer
->size
);
634 glFBDevCreateContext( const GLFBDevVisualPtr visual
, GLFBDevContextPtr share
)
636 GLFBDevContextPtr ctx
;
638 struct dd_function_table functions
;
642 ctx
= CALLOC_STRUCT(GLFBDevContextRec
);
646 /* build table of device driver functions */
647 _mesa_init_driver_functions(&functions
);
648 functions
.GetString
= get_string
;
649 functions
.UpdateState
= update_state
;
650 functions
.GetBufferSize
= get_buffer_size
;
651 functions
.Viewport
= viewport
;
653 if (!_mesa_initialize_context(&ctx
->glcontext
, &visual
->glvisual
,
654 share
? &share
->glcontext
: NULL
,
655 &functions
, (void *) ctx
)) {
660 ctx
->visual
= visual
;
662 /* Create module contexts */
663 glctx
= (GLcontext
*) &ctx
->glcontext
;
664 _swrast_CreateContext( glctx
);
665 _ac_CreateContext( glctx
);
666 _tnl_CreateContext( glctx
);
667 _swsetup_CreateContext( glctx
);
668 _swsetup_Wakeup( glctx
);
672 struct swrast_device_driver
*swdd
;
673 swdd
= _swrast_GetDeviceDriverReference( glctx
);
674 swdd
->SetBuffer
= set_buffer
;
675 if (visual
->pixelFormat
== PF_B8G8R8
) {
676 swdd
->WriteRGBASpan
= write_rgba_span_B8G8R8
;
677 swdd
->WriteRGBSpan
= write_rgb_span_B8G8R8
;
678 swdd
->WriteMonoRGBASpan
= write_monorgba_span_B8G8R8
;
679 swdd
->WriteRGBAPixels
= write_rgba_pixels_B8G8R8
;
680 swdd
->WriteMonoRGBAPixels
= write_monorgba_pixels_B8G8R8
;
681 swdd
->ReadRGBASpan
= read_rgba_span_B8G8R8
;
682 swdd
->ReadRGBAPixels
= read_rgba_pixels_B8G8R8
;
684 else if (visual
->pixelFormat
== PF_B8G8R8A8
) {
685 swdd
->WriteRGBASpan
= write_rgba_span_B8G8R8A8
;
686 swdd
->WriteRGBSpan
= write_rgb_span_B8G8R8A8
;
687 swdd
->WriteMonoRGBASpan
= write_monorgba_span_B8G8R8A8
;
688 swdd
->WriteRGBAPixels
= write_rgba_pixels_B8G8R8A8
;
689 swdd
->WriteMonoRGBAPixels
= write_monorgba_pixels_B8G8R8A8
;
690 swdd
->ReadRGBASpan
= read_rgba_span_B8G8R8A8
;
691 swdd
->ReadRGBAPixels
= read_rgba_pixels_B8G8R8A8
;
693 else if (visual
->pixelFormat
== PF_B5G6R5
) {
694 swdd
->WriteRGBASpan
= write_rgba_span_B5G6R5
;
695 swdd
->WriteRGBSpan
= write_rgb_span_B5G6R5
;
696 swdd
->WriteMonoRGBASpan
= write_monorgba_span_B5G6R5
;
697 swdd
->WriteRGBAPixels
= write_rgba_pixels_B5G6R5
;
698 swdd
->WriteMonoRGBAPixels
= write_monorgba_pixels_B5G6R5
;
699 swdd
->ReadRGBASpan
= read_rgba_span_B5G6R5
;
700 swdd
->ReadRGBAPixels
= read_rgba_pixels_B5G6R5
;
702 else if (visual
->pixelFormat
== PF_B5G5R5
) {
703 swdd
->WriteRGBASpan
= write_rgba_span_B5G5R5
;
704 swdd
->WriteRGBSpan
= write_rgb_span_B5G5R5
;
705 swdd
->WriteMonoRGBASpan
= write_monorgba_span_B5G5R5
;
706 swdd
->WriteRGBAPixels
= write_rgba_pixels_B5G5R5
;
707 swdd
->WriteMonoRGBAPixels
= write_monorgba_pixels_B5G5R5
;
708 swdd
->ReadRGBASpan
= read_rgba_span_B5G5R5
;
709 swdd
->ReadRGBAPixels
= read_rgba_pixels_B5G5R5
;
711 else if (visual
->pixelFormat
== PF_CI8
) {
712 swdd
->WriteCI32Span
= write_index32_span_CI8
;
713 swdd
->WriteCI8Span
= write_index8_span_CI8
;
714 swdd
->WriteMonoCISpan
= write_monoindex_span_CI8
;
715 swdd
->WriteCI32Pixels
= write_index_pixels_CI8
;
716 swdd
->WriteMonoCIPixels
= write_monoindex_pixels_CI8
;
717 swdd
->ReadCI32Span
= read_index_span_CI8
;
718 swdd
->ReadCI32Pixels
= read_index_pixels_CI8
;
721 _mesa_printf("bad pixelformat: %d\n", visual
->pixelFormat
);
725 /* use default TCL pipeline */
727 TNLcontext
*tnl
= TNL_CONTEXT(glctx
);
728 tnl
->Driver
.RunPipeline
= _tnl_run_pipeline
;
731 _mesa_enable_sw_extensions(glctx
);
738 glFBDevDestroyContext( GLFBDevContextPtr context
)
740 GLFBDevContextPtr fbdevctx
= glFBDevGetCurrentContext();
743 if (fbdevctx
== context
) {
744 /* destroying current context */
745 _mesa_make_current2(NULL
, NULL
, NULL
);
746 _mesa_notifyDestroy(&context
->glcontext
);
748 _mesa_free_context_data(&context
->glcontext
);
755 glFBDevGetContextAttrib( const GLFBDevContextPtr context
, int attrib
)
764 glFBDevGetCurrentContext( void )
766 GET_CURRENT_CONTEXT(ctx
);
767 return (GLFBDevContextPtr
) ctx
;
772 glFBDevMakeCurrent( GLFBDevContextPtr context
,
773 GLFBDevBufferPtr drawBuffer
,
774 GLFBDevBufferPtr readBuffer
)
776 if (context
&& drawBuffer
&& readBuffer
) {
777 /* Make sure the context's visual and the buffers' visuals match.
778 * XXX we might do this by comparing specific fields like bits_per_pixel,
779 * visual, etc. in the future.
781 if (context
->visual
!= drawBuffer
->visual
||
782 context
->visual
!= readBuffer
->visual
) {
785 _mesa_make_current2( &context
->glcontext
,
786 &drawBuffer
->glframebuffer
,
787 &readBuffer
->glframebuffer
);
788 context
->drawBuffer
= drawBuffer
;
789 context
->readBuffer
= readBuffer
;
790 context
->curBuffer
= drawBuffer
;
794 _mesa_make_current2( NULL
, NULL
, NULL
);
800 #endif /* USE_GLFBDEV_DRIVER */