2 * common OpenGL routines
4 * copyleft (C) 2005-2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
5 * Special thanks go to the xine team and Matthias Hopf, whose video_out_opengl.c
6 * gave me lots of good ideas.
8 * This file is part of MPlayer.
10 * MPlayer is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * MPlayer is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License along
21 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 * You can alternatively redistribute this file and/or
25 * modify it under the terms of the GNU Lesser General Public
26 * License as published by the Free Software Foundation; either
27 * version 2.1 of the License, or (at your option) any later version.
32 * \brief OpenGL helper functions used by vo_gl.c and vo_gl2.c
42 #include "gl_common.h"
43 #include "old_vo_wrapper.h"
46 #include "pnm_loader.h"
49 //! \defgroup glgeneral OpenGL general helper functions
51 //! \defgroup glcontext OpenGL context management helper functions
53 //! \defgroup gltexture OpenGL texture handling helper functions
55 //! \defgroup glconversion OpenGL conversion helper functions
58 * \brief adjusts the GL_UNPACK_ALIGNMENT to fit the stride.
59 * \param stride number of bytes per line for which alignment should fit.
62 void glAdjustAlignment(GL
*gl
, int stride
)
67 else if (stride
% 4 == 0)
69 else if (stride
% 2 == 0)
73 gl
->PixelStorei(GL_UNPACK_ALIGNMENT
, gl_alignment
);
74 gl
->PixelStorei(GL_PACK_ALIGNMENT
, gl_alignment
);
77 struct gl_name_map_struct
{
83 #define MAP(a) {a, # a}
84 //! mapping table for the glValName function
85 static const struct gl_name_map_struct gl_name_map
[] = {
87 MAP(GL_R3_G3_B2
), MAP(GL_RGB4
), MAP(GL_RGB5
), MAP(GL_RGB8
),
88 MAP(GL_RGB10
), MAP(GL_RGB12
), MAP(GL_RGB16
), MAP(GL_RGBA2
),
89 MAP(GL_RGBA4
), MAP(GL_RGB5_A1
), MAP(GL_RGBA8
), MAP(GL_RGB10_A2
),
90 MAP(GL_RGBA12
), MAP(GL_RGBA16
), MAP(GL_LUMINANCE8
), MAP(GL_LUMINANCE16
),
94 MAP(GL_RGB
), MAP(GL_RGBA
), MAP(GL_RED
), MAP(GL_GREEN
), MAP(GL_BLUE
),
95 MAP(GL_ALPHA
), MAP(GL_LUMINANCE
), MAP(GL_LUMINANCE_ALPHA
),
98 MAP(GL_BGR
), MAP(GL_BGRA
),
101 MAP(GL_BYTE
), MAP(GL_UNSIGNED_BYTE
), MAP(GL_SHORT
), MAP(GL_UNSIGNED_SHORT
),
102 MAP(GL_INT
), MAP(GL_UNSIGNED_INT
), MAP(GL_FLOAT
), MAP(GL_DOUBLE
),
103 MAP(GL_2_BYTES
), MAP(GL_3_BYTES
), MAP(GL_4_BYTES
),
105 MAP(GL_UNSIGNED_BYTE_3_3_2
), MAP(GL_UNSIGNED_BYTE_2_3_3_REV
),
106 MAP(GL_UNSIGNED_SHORT_5_6_5
), MAP(GL_UNSIGNED_SHORT_5_6_5_REV
),
107 MAP(GL_UNSIGNED_SHORT_4_4_4_4
), MAP(GL_UNSIGNED_SHORT_4_4_4_4_REV
),
108 MAP(GL_UNSIGNED_SHORT_5_5_5_1
), MAP(GL_UNSIGNED_SHORT_1_5_5_5_REV
),
109 MAP(GL_UNSIGNED_INT_8_8_8_8
), MAP(GL_UNSIGNED_INT_8_8_8_8_REV
),
110 MAP(GL_UNSIGNED_INT_10_10_10_2
), MAP(GL_UNSIGNED_INT_2_10_10_10_REV
),
116 * \brief return the name of an OpenGL constant
117 * \param value the constant
118 * \return name of the constant or "Unknown format!"
121 const char *glValName(GLint value
)
125 while (gl_name_map
[i
].name
) {
126 if (gl_name_map
[i
].value
== value
)
127 return gl_name_map
[i
].name
;
130 return "Unknown format!";
133 //! always return this format as internal texture format in glFindFormat
134 #define TEXTUREFORMAT_ALWAYS GL_RGB8
135 #undef TEXTUREFORMAT_ALWAYS
138 * \brief find the OpenGL settings coresponding to format.
140 * All parameters may be NULL.
141 * \param fmt MPlayer format to analyze.
142 * \param bpp [OUT] bits per pixel of that format.
143 * \param gl_texfmt [OUT] internal texture format that fits the
144 * image format, not necessarily the best for performance.
145 * \param gl_format [OUT] OpenGL format for this image format.
146 * \param gl_type [OUT] OpenGL type for this image format.
147 * \return 1 if format is supported by OpenGL, 0 if not.
150 int glFindFormat(uint32_t fmt
, int have_texture_rg
, int *bpp
, GLint
*gl_texfmt
,
151 GLenum
*gl_format
, GLenum
*gl_type
)
166 if (mp_get_chroma_shift(fmt
, NULL
, NULL
, NULL
)) {
167 // reduce the possible cases a bit
168 if (IMGFMT_IS_YUVP16_LE(fmt
))
169 fmt
= IMGFMT_420P16_LE
;
170 else if (IMGFMT_IS_YUVP16_BE(fmt
))
171 fmt
= IMGFMT_420P16_BE
;
176 *bpp
= IMGFMT_IS_BGR(fmt
) ? IMGFMT_BGR_DEPTH(fmt
) : IMGFMT_RGB_DEPTH(fmt
);
181 *gl_type
= GL_UNSIGNED_SHORT
;
185 *gl_type
= GL_UNSIGNED_BYTE
;
189 *gl_format
= GL_RGBA
;
190 *gl_type
= GL_UNSIGNED_BYTE
;
193 supported
= 0; // no native YUV support
194 *gl_texfmt
= have_texture_rg
? GL_R16
: GL_LUMINANCE16
;
196 *gl_format
= have_texture_rg
? GL_RED
: GL_LUMINANCE
;
197 *gl_type
= GL_UNSIGNED_SHORT
;
200 supported
= 0; // no native YV12 support
205 *gl_format
= GL_LUMINANCE
;
206 *gl_type
= GL_UNSIGNED_BYTE
;
209 // IMGFMT_YUY2 would be more logical for the _REV format,
210 // but gives clearly swapped colors.
212 *gl_texfmt
= GL_YCBCR_MESA
;
214 *gl_format
= GL_YCBCR_MESA
;
215 *gl_type
= fmt
== IMGFMT_UYVY
? GL_UNSIGNED_SHORT_8_8
: GL_UNSIGNED_SHORT_8_8_REV
;
218 // we do not support palettized formats, although the format the
219 // swscale produces works
222 gl_type
= GL_UNSIGNED_BYTE_2_3_3_REV
;
226 *gl_format
= GL_RGBA
;
227 *gl_type
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
231 *gl_type
= GL_UNSIGNED_SHORT_5_6_5_REV
;
235 // special case as red and blue have a differen number of bits.
236 // GL_BGR and GL_UNSIGNED_BYTE_3_3_2 isn't supported at least
237 // by nVidia drivers, and in addition would give more bits to
238 // blue than to red, which isn't wanted
240 gl_type
= GL_UNSIGNED_BYTE_3_3_2
;
244 *gl_format
= GL_BGRA
;
245 *gl_type
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
249 *gl_type
= GL_UNSIGNED_SHORT_5_6_5
;
253 *gl_type
= GL_UNSIGNED_BYTE
;
257 *gl_format
= GL_BGRA
;
258 *gl_type
= GL_UNSIGNED_BYTE
;
262 *gl_format
= GL_RGBA
;
263 *gl_type
= GL_UNSIGNED_BYTE
;
266 #ifdef TEXTUREFORMAT_ALWAYS
267 *gl_texfmt
= TEXTUREFORMAT_ALWAYS
;
276 * \brief find address of a linked function
277 * \param s name of function to find
278 * \return address of function or NULL if not found
280 static void *getdladdr(const char *s
)
284 void *handle
= dlopen(NULL
, RTLD_LAZY
);
287 ret
= dlsym(handle
, s
);
294 ptrdiff_t offset
; // offset to the function pointer in struct GL
296 const char *funcnames
[7];
300 #define DEF_FUNC_DESC(name) \
301 {offsetof(GL, name), NULL, {"gl" # name, NULL}, gl ## name}
302 #define DEF_EXT_FUNCS(...) __VA_ARGS__
303 #define DEF_EXT_DESC(name, ext, funcnames) \
304 {offsetof(GL, name), ext, {DEF_EXT_FUNCS funcnames}}
306 static const extfunc_desc_t extfuncs
[] = {
307 // these aren't extension functions but we query them anyway to allow
308 // different "backends" with one binary
309 DEF_FUNC_DESC(Begin
),
311 DEF_FUNC_DESC(Viewport
),
312 DEF_FUNC_DESC(MatrixMode
),
313 DEF_FUNC_DESC(LoadIdentity
),
314 DEF_FUNC_DESC(Translated
),
315 DEF_FUNC_DESC(Scaled
),
316 DEF_FUNC_DESC(Ortho
),
317 DEF_FUNC_DESC(Frustum
),
318 DEF_FUNC_DESC(PushMatrix
),
319 DEF_FUNC_DESC(PopMatrix
),
320 DEF_FUNC_DESC(Clear
),
321 DEF_FUNC_DESC(GenLists
),
322 DEF_FUNC_DESC(DeleteLists
),
323 DEF_FUNC_DESC(NewList
),
324 DEF_FUNC_DESC(EndList
),
325 DEF_FUNC_DESC(CallList
),
326 DEF_FUNC_DESC(CallLists
),
327 DEF_FUNC_DESC(GenTextures
),
328 DEF_FUNC_DESC(DeleteTextures
),
329 DEF_FUNC_DESC(TexEnvf
),
330 DEF_FUNC_DESC(TexEnvi
),
331 DEF_FUNC_DESC(Color4ub
),
332 DEF_FUNC_DESC(Color3f
),
333 DEF_FUNC_DESC(Color4f
),
334 DEF_FUNC_DESC(ClearColor
),
335 DEF_FUNC_DESC(ClearDepth
),
336 DEF_FUNC_DESC(DepthFunc
),
337 DEF_FUNC_DESC(Enable
),
338 DEF_FUNC_DESC(Disable
),
339 DEF_FUNC_DESC(DrawBuffer
),
340 DEF_FUNC_DESC(DepthMask
),
341 DEF_FUNC_DESC(BlendFunc
),
342 DEF_FUNC_DESC(Flush
),
343 DEF_FUNC_DESC(Finish
),
344 DEF_FUNC_DESC(PixelStorei
),
345 DEF_FUNC_DESC(TexImage1D
),
346 DEF_FUNC_DESC(TexImage2D
),
347 DEF_FUNC_DESC(TexSubImage2D
),
348 DEF_FUNC_DESC(GetTexImage
),
349 DEF_FUNC_DESC(TexParameteri
),
350 DEF_FUNC_DESC(TexParameterf
),
351 DEF_FUNC_DESC(TexParameterfv
),
352 DEF_FUNC_DESC(TexCoord2f
),
353 DEF_FUNC_DESC(Vertex2f
),
354 DEF_FUNC_DESC(Vertex3f
),
355 DEF_FUNC_DESC(Normal3f
),
356 DEF_FUNC_DESC(Lightfv
),
357 DEF_FUNC_DESC(ColorMaterial
),
358 DEF_FUNC_DESC(ShadeModel
),
359 DEF_FUNC_DESC(GetIntegerv
),
360 DEF_FUNC_DESC(ColorMask
),
361 DEF_FUNC_DESC(ReadPixels
),
362 DEF_FUNC_DESC(ReadBuffer
),
364 DEF_EXT_DESC(GenBuffers
, NULL
,
365 ("glGenBuffers", "glGenBuffersARB")),
366 DEF_EXT_DESC(DeleteBuffers
, NULL
,
367 ("glDeleteBuffers", "glDeleteBuffersARB")),
368 DEF_EXT_DESC(BindBuffer
, NULL
,
369 ("glBindBuffer", "glBindBufferARB")),
370 DEF_EXT_DESC(MapBuffer
, NULL
,
371 ("glMapBuffer", "glMapBufferARB")),
372 DEF_EXT_DESC(UnmapBuffer
, NULL
,
373 ("glUnmapBuffer", "glUnmapBufferARB")),
374 DEF_EXT_DESC(BufferData
, NULL
,
375 ("glBufferData", "glBufferDataARB")),
376 DEF_EXT_DESC(BeginFragmentShader
, "ATI_fragment_shader",
377 ("glBeginFragmentShaderATI")),
378 DEF_EXT_DESC(EndFragmentShader
, "ATI_fragment_shader",
379 ("glEndFragmentShaderATI")),
380 DEF_EXT_DESC(SampleMap
, "ATI_fragment_shader",
382 DEF_EXT_DESC(ColorFragmentOp2
, "ATI_fragment_shader",
383 ("glColorFragmentOp2ATI")),
384 DEF_EXT_DESC(ColorFragmentOp3
, "ATI_fragment_shader",
385 ("glColorFragmentOp3ATI")),
386 DEF_EXT_DESC(SetFragmentShaderConstant
, "ATI_fragment_shader",
387 ("glSetFragmentShaderConstantATI")),
388 DEF_EXT_DESC(ActiveTexture
, NULL
,
389 ("glActiveTexture", "glActiveTextureARB")),
390 DEF_EXT_DESC(BindTexture
, NULL
,
391 ("glBindTexture", "glBindTextureARB", "glBindTextureEXT")),
392 DEF_EXT_DESC(MultiTexCoord2f
, NULL
,
393 ("glMultiTexCoord2f", "glMultiTexCoord2fARB")),
394 DEF_EXT_DESC(GenPrograms
, "_program",
395 ("glGenProgramsARB")),
396 DEF_EXT_DESC(DeletePrograms
, "_program",
397 ("glDeleteProgramsARB")),
398 DEF_EXT_DESC(BindProgram
, "_program",
399 ("glBindProgramARB")),
400 DEF_EXT_DESC(ProgramString
, "_program",
401 ("glProgramStringARB")),
402 DEF_EXT_DESC(GetProgramiv
, "_program",
403 ("glGetProgramivARB")),
404 DEF_EXT_DESC(ProgramEnvParameter4f
, "_program",
405 ("glProgramEnvParameter4fARB")),
406 DEF_EXT_DESC(SwapInterval
, "_swap_control",
407 ("glXSwapIntervalSGI", "glXSwapInterval", "wglSwapIntervalSGI",
408 "wglSwapInterval", "wglSwapIntervalEXT")),
409 DEF_EXT_DESC(TexImage3D
, NULL
,
415 * \brief find the function pointers of some useful OpenGL extensions
416 * \param getProcAddress function to resolve function names, may be NULL
417 * \param ext2 an extra extension string
419 static void getFunctions(GL
*gl
, void *(*getProcAddress
)(const GLubyte
*),
422 const extfunc_desc_t
*dsc
;
423 const char *extensions
;
427 getProcAddress
= (void *)getdladdr
;
429 // special case, we need glGetString before starting to find the other functions
430 gl
->GetString
= getProcAddress("glGetString");
432 gl
->GetString
= glGetString
;
434 extensions
= (const char *)gl
->GetString(GL_EXTENSIONS
);
439 allexts
= malloc(strlen(extensions
) + strlen(ext2
) + 2);
440 strcpy(allexts
, extensions
);
441 strcat(allexts
, " ");
442 strcat(allexts
, ext2
);
443 mp_msg(MSGT_VO
, MSGL_DBG2
, "OpenGL extensions string:\n%s\n", allexts
);
444 for (dsc
= extfuncs
; dsc
->offset
>= 0; dsc
++) {
447 if (!dsc
->extstr
|| strstr(allexts
, dsc
->extstr
)) {
448 for (i
= 0; !ptr
&& dsc
->funcnames
[i
]; i
++)
449 ptr
= getProcAddress((const GLubyte
*)dsc
->funcnames
[i
]);
453 void **funcptr
= (void**)(((char*)gl
) + dsc
->offset
);
460 * \brief create a texture and set some defaults
461 * \param target texture taget, usually GL_TEXTURE_2D
462 * \param fmt internal texture format
463 * \param format texture host data format
464 * \param type texture host data type
465 * \param filter filter used for scaling, e.g. GL_LINEAR
466 * \param w texture width
467 * \param h texture height
468 * \param val luminance value to fill texture with
471 void glCreateClearTex(GL
*gl
, GLenum target
, GLenum fmt
, GLenum format
,
472 GLenum type
, GLint filter
, int w
, int h
,
475 GLfloat fval
= (GLfloat
)val
/ 255.0;
476 GLfloat border
[4] = {
477 fval
, fval
, fval
, fval
485 stride
= w
* glFmt2bpp(format
, type
);
488 init
= malloc(stride
* h
);
489 memset(init
, val
, stride
* h
);
490 glAdjustAlignment(gl
, stride
);
491 gl
->PixelStorei(GL_UNPACK_ROW_LENGTH
, w
);
492 gl
->TexImage2D(target
, 0, fmt
, w
, h
, 0, format
, type
, init
);
493 gl
->TexParameterf(target
, GL_TEXTURE_PRIORITY
, 1.0);
494 gl
->TexParameteri(target
, GL_TEXTURE_MIN_FILTER
, filter
);
495 gl
->TexParameteri(target
, GL_TEXTURE_MAG_FILTER
, filter
);
496 gl
->TexParameteri(target
, GL_TEXTURE_WRAP_S
, GL_CLAMP_TO_EDGE
);
497 gl
->TexParameteri(target
, GL_TEXTURE_WRAP_T
, GL_CLAMP_TO_EDGE
);
498 // Border texels should not be used with CLAMP_TO_EDGE
499 // We set a sane default anyway.
500 gl
->TexParameterfv(target
, GL_TEXTURE_BORDER_COLOR
, border
);
504 static GLint
detect_hqtexfmt(GL
*gl
)
506 const char *extensions
= (const char *)gl
->GetString(GL_EXTENSIONS
);
507 if (strstr(extensions
, "_texture_float"))
509 else if (strstr(extensions
, "NV_float_buffer"))
510 return GL_FLOAT_RGB32_NV
;
515 * \brief creates a texture from a PPM file
516 * \param target texture taget, usually GL_TEXTURE_2D
517 * \param fmt internal texture format, 0 for default
518 * \param filter filter used for scaling, e.g. GL_LINEAR
519 * \param f file to read PPM from
520 * \param width [out] width of texture
521 * \param height [out] height of texture
522 * \param maxval [out] maxval value from PPM file
523 * \return 0 on error, 1 otherwise
526 int glCreatePPMTex(GL
*gl
, GLenum target
, GLenum fmt
, GLint filter
,
527 FILE *f
, int *width
, int *height
, int *maxval
)
531 uint8_t *data
= read_pnm(f
, &w
, &h
, &bpp
, &m
);
532 GLint hqtexfmt
= detect_hqtexfmt(gl
);
533 if (!data
|| (bpp
!= 3 && bpp
!= 6)) {
538 fmt
= bpp
== 6 ? hqtexfmt
: 3;
539 if (fmt
== GL_FLOAT_RGB32_NV
&& target
!= GL_TEXTURE_RECTANGLE
)
542 type
= bpp
== 6 ? GL_UNSIGNED_SHORT
: GL_UNSIGNED_BYTE
;
543 glCreateClearTex(gl
, target
, fmt
, GL_RGB
, type
, filter
, w
, h
, 0);
544 glUploadTex(gl
, target
, GL_RGB
, type
,
545 data
, w
* bpp
, 0, 0, w
, h
, 0);
557 * \brief return the number of bytes per pixel for the given format
558 * \param format OpenGL format
559 * \param type OpenGL type
560 * \return bytes per pixel
563 * Does not handle all possible variants, just those used by MPlayer
565 int glFmt2bpp(GLenum format
, GLenum type
)
567 int component_size
= 0;
569 case GL_UNSIGNED_BYTE_3_3_2
:
570 case GL_UNSIGNED_BYTE_2_3_3_REV
:
572 case GL_UNSIGNED_SHORT_5_5_5_1
:
573 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
574 case GL_UNSIGNED_SHORT_5_6_5
:
575 case GL_UNSIGNED_SHORT_5_6_5_REV
:
577 case GL_UNSIGNED_BYTE
:
580 case GL_UNSIGNED_SHORT
:
587 return component_size
;
592 return 3 * component_size
;
595 return 4 * component_size
;
597 return component_size
;
603 * \brief upload a texture, handling things like stride and slices
604 * \param target texture target, usually GL_TEXTURE_2D
605 * \param format OpenGL format of data
606 * \param type OpenGL type of data
607 * \param dataptr data to upload
608 * \param stride data stride
609 * \param x x offset in texture
610 * \param y y offset in texture
611 * \param w width of the texture part to upload
612 * \param h height of the texture part to upload
613 * \param slice height of an upload slice, 0 for all at once
616 void glUploadTex(GL
*gl
, GLenum target
, GLenum format
, GLenum type
,
617 const void *dataptr
, int stride
,
618 int x
, int y
, int w
, int h
, int slice
)
620 const uint8_t *data
= dataptr
;
622 if (w
<= 0 || h
<= 0)
627 data
+= (h
- 1) * stride
;
630 // this is not always correct, but should work for MPlayer
631 glAdjustAlignment(gl
, stride
);
632 gl
->PixelStorei(GL_UNPACK_ROW_LENGTH
, stride
/ glFmt2bpp(format
, type
));
633 for (; y
+ slice
<= y_max
; y
+= slice
) {
634 gl
->TexSubImage2D(target
, 0, x
, y
, w
, slice
, format
, type
, data
);
635 data
+= stride
* slice
;
638 gl
->TexSubImage2D(target
, 0, x
, y
, w
, y_max
- y
, format
, type
, data
);
642 * \brief download a texture, handling things like stride and slices
643 * \param target texture target, usually GL_TEXTURE_2D
644 * \param format OpenGL format of data
645 * \param type OpenGL type of data
646 * \param dataptr destination memory for download
647 * \param stride data stride (must be positive)
650 void glDownloadTex(GL
*gl
, GLenum target
, GLenum format
, GLenum type
,
651 void *dataptr
, int stride
)
653 // this is not always correct, but should work for MPlayer
654 glAdjustAlignment(gl
, stride
);
655 gl
->PixelStorei(GL_PACK_ROW_LENGTH
, stride
/ glFmt2bpp(format
, type
));
656 gl
->GetTexImage(target
, 0, format
, type
, dataptr
);
660 * \brief Setup ATI version of register combiners for YUV to RGB conversion.
661 * \param csp_params parameters used for colorspace conversion
662 * \param text if set use the GL_ATI_text_fragment_shader API as
665 static void glSetupYUVFragmentATI(GL
*gl
, struct mp_csp_params
*csp_params
,
671 gl
->GetIntegerv(GL_MAX_TEXTURE_UNITS
, &i
);
673 mp_msg(MSGT_VO
, MSGL_ERR
,
674 "[gl] 3 texture units needed for YUV combiner (ATI) support (found %i)\n", i
);
676 mp_get_yuv2rgb_coeffs(csp_params
, yuv2rgb
);
677 for (i
= 0; i
< 3; i
++) {
679 yuv2rgb
[i
][3] -= -0.5 * (yuv2rgb
[i
][1] + yuv2rgb
[i
][2]);
680 for (j
= 0; j
< 4; j
++) {
681 yuv2rgb
[i
][j
] *= 0.125;
682 yuv2rgb
[i
][j
] += 0.5;
683 if (yuv2rgb
[i
][j
] > 1)
685 if (yuv2rgb
[i
][j
] < 0)
690 GLfloat c0
[4] = { yuv2rgb
[0][0], yuv2rgb
[1][0], yuv2rgb
[2][0] };
691 GLfloat c1
[4] = { yuv2rgb
[0][1], yuv2rgb
[1][1], yuv2rgb
[2][1] };
692 GLfloat c2
[4] = { yuv2rgb
[0][2], yuv2rgb
[1][2], yuv2rgb
[2][2] };
693 GLfloat c3
[4] = { yuv2rgb
[0][3], yuv2rgb
[1][3], yuv2rgb
[2][3] };
694 if (!gl
->BeginFragmentShader
|| !gl
->EndFragmentShader
||
695 !gl
->SetFragmentShaderConstant
|| !gl
->SampleMap
||
696 !gl
->ColorFragmentOp2
|| !gl
->ColorFragmentOp3
) {
697 mp_msg(MSGT_VO
, MSGL_FATAL
, "[gl] Combiner (ATI) functions missing!\n");
700 gl
->GetIntegerv(GL_NUM_FRAGMENT_REGISTERS_ATI
, &i
);
702 mp_msg(MSGT_VO
, MSGL_ERR
,
703 "[gl] 3 registers needed for YUV combiner (ATI) support (found %i)\n", i
);
704 gl
->BeginFragmentShader();
705 gl
->SetFragmentShaderConstant(GL_CON_0_ATI
, c0
);
706 gl
->SetFragmentShaderConstant(GL_CON_1_ATI
, c1
);
707 gl
->SetFragmentShaderConstant(GL_CON_2_ATI
, c2
);
708 gl
->SetFragmentShaderConstant(GL_CON_3_ATI
, c3
);
709 gl
->SampleMap(GL_REG_0_ATI
, GL_TEXTURE0
, GL_SWIZZLE_STR_ATI
);
710 gl
->SampleMap(GL_REG_1_ATI
, GL_TEXTURE1
, GL_SWIZZLE_STR_ATI
);
711 gl
->SampleMap(GL_REG_2_ATI
, GL_TEXTURE2
, GL_SWIZZLE_STR_ATI
);
712 gl
->ColorFragmentOp2(GL_MUL_ATI
, GL_REG_1_ATI
, GL_NONE
, GL_NONE
,
713 GL_REG_1_ATI
, GL_NONE
, GL_BIAS_BIT_ATI
,
714 GL_CON_1_ATI
, GL_NONE
, GL_BIAS_BIT_ATI
);
715 gl
->ColorFragmentOp3(GL_MAD_ATI
, GL_REG_2_ATI
, GL_NONE
, GL_NONE
,
716 GL_REG_2_ATI
, GL_NONE
, GL_BIAS_BIT_ATI
,
717 GL_CON_2_ATI
, GL_NONE
, GL_BIAS_BIT_ATI
,
718 GL_REG_1_ATI
, GL_NONE
, GL_NONE
);
719 gl
->ColorFragmentOp3(GL_MAD_ATI
, GL_REG_0_ATI
, GL_NONE
, GL_NONE
,
720 GL_REG_0_ATI
, GL_NONE
, GL_NONE
,
721 GL_CON_0_ATI
, GL_NONE
, GL_BIAS_BIT_ATI
,
722 GL_REG_2_ATI
, GL_NONE
, GL_NONE
);
723 gl
->ColorFragmentOp2(GL_ADD_ATI
, GL_REG_0_ATI
, GL_NONE
, GL_8X_BIT_ATI
,
724 GL_REG_0_ATI
, GL_NONE
, GL_NONE
,
725 GL_CON_3_ATI
, GL_NONE
, GL_BIAS_BIT_ATI
);
726 gl
->EndFragmentShader();
728 static const char template[] =
731 " CONSTANT c0 = {%e, %e, %e};\n"
732 " CONSTANT c1 = {%e, %e, %e};\n"
733 " CONSTANT c2 = {%e, %e, %e};\n"
734 " CONSTANT c3 = {%e, %e, %e};\n"
737 " SampleMap r0, t0.str;\n"
738 " SampleMap r1, t1.str;\n"
739 " SampleMap r2, t2.str;\n"
740 " MUL r1.rgb, r1.bias, c1.bias;\n"
741 " MAD r2.rgb, r2.bias, c2.bias, r1;\n"
742 " MAD r0.rgb, r0, c0.bias, r2;\n"
743 " ADD r0.rgb.8x, r0, c3.bias;\n"
746 snprintf(buffer
, sizeof(buffer
), template,
747 yuv2rgb
[0][0], yuv2rgb
[1][0], yuv2rgb
[2][0],
748 yuv2rgb
[0][1], yuv2rgb
[1][1], yuv2rgb
[2][1],
749 yuv2rgb
[0][2], yuv2rgb
[1][2], yuv2rgb
[2][2],
750 yuv2rgb
[0][3], yuv2rgb
[1][3], yuv2rgb
[2][3]);
751 mp_msg(MSGT_VO
, MSGL_DBG2
, "[gl] generated fragment program:\n%s\n",
753 loadGPUProgram(gl
, GL_TEXT_FRAGMENT_SHADER_ATI
, buffer
);
757 // Replace all occurances of variables named "$"+name (e.g. $foo) in *text with
758 // replace, and return the result. *text must have been allocated with talloc.
759 static void replace_var_str(char **text
, const char *name
, const char *replace
)
761 size_t namelen
= strlen(name
);
762 char *nextvar
= *text
;
763 void *parent
= talloc_parent(*text
);
765 nextvar
= strchr(nextvar
, '$');
768 char *until
= nextvar
;
770 if (strncmp(nextvar
, name
, namelen
) != 0)
773 // try not to replace prefixes of other vars (e.g. $foo vs. $foo_bar)
774 char term
= nextvar
[0];
775 if (isalnum(term
) || term
== '_')
777 int prelength
= until
- *text
;
778 int postlength
= nextvar
- *text
;
779 char *n
= talloc_asprintf(parent
, "%.*s%s%s", prelength
, *text
, replace
,
783 nextvar
= *text
+ postlength
;
787 static void replace_var_float(char **text
, const char *name
, float replace
)
789 char *s
= talloc_asprintf(NULL
, "%e", replace
);
790 replace_var_str(text
, name
, s
);
794 static void replace_var_char(char **text
, const char *name
, char replace
)
796 char s
[2] = { replace
, '\0' };
797 replace_var_str(text
, name
, s
);
800 // Append template to *text. Possibly initialize *text if it's NULL.
801 static void append_template(char **text
, const char* template)
804 *text
= talloc_strdup(NULL
, template);
806 *text
= talloc_strdup_append(*text
, template);
810 * \brief helper function for gen_spline_lookup_tex
811 * \param x subpixel-position ((0,1) range) to calculate weights for
812 * \param dst where to store transformed weights, must provide space for 4 GLfloats
814 * calculates the weights and stores them after appropriate transformation
815 * for the scaler fragment program.
817 static void store_weights(float x
, GLfloat
*dst
)
819 float w0
= (((-1 * x
+ 3) * x
- 3) * x
+ 1) / 6;
820 float w1
= (((3 * x
- 6) * x
+ 0) * x
+ 4) / 6;
821 float w2
= (((-3 * x
+ 3) * x
+ 3) * x
+ 1) / 6;
822 float w3
= (((1 * x
+ 0) * x
+ 0) * x
+ 0) / 6;
823 *dst
++ = 1 + x
- w1
/ (w0
+ w1
);
824 *dst
++ = 1 - x
+ w3
/ (w2
+ w3
);
829 //! to avoid artefacts this should be rather large
830 #define LOOKUP_BSPLINE_RES (2 * 1024)
832 * \brief creates the 1D lookup texture needed for fast higher-order filtering
833 * \param unit texture unit to attach texture to
835 static void gen_spline_lookup_tex(GL
*gl
, GLenum unit
)
837 GLfloat
*tex
= calloc(4 * LOOKUP_BSPLINE_RES
, sizeof(*tex
));
840 for (i
= 0; i
< LOOKUP_BSPLINE_RES
; i
++) {
841 float x
= (float)(i
+ 0.5) / LOOKUP_BSPLINE_RES
;
842 store_weights(x
, tp
);
845 store_weights(0, tex
);
846 store_weights(1, &tex
[4 * (LOOKUP_BSPLINE_RES
- 1)]);
847 gl
->ActiveTexture(unit
);
848 gl
->TexImage1D(GL_TEXTURE_1D
, 0, GL_RGBA16
, LOOKUP_BSPLINE_RES
, 0, GL_RGBA
,
850 gl
->TexParameterf(GL_TEXTURE_1D
, GL_TEXTURE_PRIORITY
, 1.0);
851 gl
->TexParameteri(GL_TEXTURE_1D
, GL_TEXTURE_MIN_FILTER
, GL_NEAREST
);
852 gl
->TexParameteri(GL_TEXTURE_1D
, GL_TEXTURE_MAG_FILTER
, GL_NEAREST
);
853 gl
->TexParameteri(GL_TEXTURE_1D
, GL_TEXTURE_WRAP_S
, GL_REPEAT
);
854 gl
->ActiveTexture(GL_TEXTURE0
);
858 #define SAMPLE(dest, coord, texture) \
859 "TEX textemp, " coord ", " texture ", $tex_type;\n" \
860 "MOV " dest ", textemp.r;\n"
862 static const char *bilin_filt_template
=
863 SAMPLE("yuv.$out_comp","fragment.texcoord[$in_tex]","texture[$in_tex]");
865 #define BICUB_FILT_MAIN \
866 /* first y-interpolation */ \
867 "ADD coord, fragment.texcoord[$in_tex].xyxy, cdelta.xyxw;\n" \
868 "ADD coord2, fragment.texcoord[$in_tex].xyxy, cdelta.zyzw;\n" \
869 SAMPLE("a.r","coord.xyxy","texture[$in_tex]") \
870 SAMPLE("a.g","coord.zwzw","texture[$in_tex]") \
871 /* second y-interpolation */ \
872 SAMPLE("b.r","coord2.xyxy","texture[$in_tex]") \
873 SAMPLE("b.g","coord2.zwzw","texture[$in_tex]") \
874 "LRP a.b, parmy.b, a.rrrr, a.gggg;\n" \
875 "LRP a.a, parmy.b, b.rrrr, b.gggg;\n" \
876 /* x-interpolation */ \
877 "LRP yuv.$out_comp, parmx.b, a.bbbb, a.aaaa;\n"
879 static const char *bicub_filt_template_2D
=
880 "MAD coord.xy, fragment.texcoord[$in_tex], {$texw, $texh}, {0.5, 0.5};\n"
881 "TEX parmx, coord.x, texture[$texs], 1D;\n"
882 "MUL cdelta.xz, parmx.rrgg, {-$ptw, 0, $ptw, 0};\n"
883 "TEX parmy, coord.y, texture[$texs], 1D;\n"
884 "MUL cdelta.yw, parmy.rrgg, {0, -$pth, 0, $pth};\n"
887 static const char *bicub_filt_template_RECT
=
888 "ADD coord, fragment.texcoord[$in_tex], {0.5, 0.5};\n"
889 "TEX parmx, coord.x, texture[$texs], 1D;\n"
890 "MUL cdelta.xz, parmx.rrgg, {-1, 0, 1, 0};\n"
891 "TEX parmy, coord.y, texture[$texs], 1D;\n"
892 "MUL cdelta.yw, parmy.rrgg, {0, -1, 0, 1};\n"
895 #define CALCWEIGHTS(t, s) \
896 "MAD "t ", {-0.5, 0.1666, 0.3333, -0.3333}, "s ", {1, 0, -0.5, 0.5};\n" \
897 "MAD "t ", "t ", "s ", {0, 0, -0.5, 0.5};\n" \
898 "MAD "t ", "t ", "s ", {-0.6666, 0, 0.8333, 0.1666};\n" \
899 "RCP a.x, "t ".z;\n" \
900 "RCP a.y, "t ".w;\n" \
901 "MAD "t ".xy, "t ".xyxy, a.xyxy, {1, 1, 0, 0};\n" \
902 "ADD "t ".x, "t ".xxxx, "s ";\n" \
903 "SUB "t ".y, "t ".yyyy, "s ";\n"
905 static const char *bicub_notex_filt_template_2D
=
906 "MAD coord.xy, fragment.texcoord[$in_tex], {$texw, $texh}, {0.5, 0.5};\n"
907 "FRC coord.xy, coord.xyxy;\n"
908 CALCWEIGHTS("parmx", "coord.xxxx")
909 "MUL cdelta.xz, parmx.rrgg, {-$ptw, 0, $ptw, 0};\n"
910 CALCWEIGHTS("parmy", "coord.yyyy")
911 "MUL cdelta.yw, parmy.rrgg, {0, -$pth, 0, $pth};\n"
914 static const char *bicub_notex_filt_template_RECT
=
915 "ADD coord, fragment.texcoord[$in_tex], {0.5, 0.5};\n"
916 "FRC coord.xy, coord.xyxy;\n"
917 CALCWEIGHTS("parmx", "coord.xxxx")
918 "MUL cdelta.xz, parmx.rrgg, {-1, 0, 1, 0};\n"
919 CALCWEIGHTS("parmy", "coord.yyyy")
920 "MUL cdelta.yw, parmy.rrgg, {0, -1, 0, 1};\n"
923 #define BICUB_X_FILT_MAIN \
924 "ADD coord.xy, fragment.texcoord[$in_tex].xyxy, cdelta.xyxy;\n" \
925 "ADD coord2.xy, fragment.texcoord[$in_tex].xyxy, cdelta.zyzy;\n" \
926 SAMPLE("a.r","coord","texture[$in_tex]") \
927 SAMPLE("b.r","coord2","texture[$in_tex]") \
928 /* x-interpolation */ \
929 "LRP yuv.$out_comp, parmx.b, a.rrrr, b.rrrr;\n"
931 static const char *bicub_x_filt_template_2D
=
932 "MAD coord.x, fragment.texcoord[$in_tex], {$texw}, {0.5};\n"
933 "TEX parmx, coord, texture[$texs], 1D;\n"
934 "MUL cdelta.xyz, parmx.rrgg, {-$ptw, 0, $ptw};\n"
937 static const char *bicub_x_filt_template_RECT
=
938 "ADD coord.x, fragment.texcoord[$in_tex], {0.5};\n"
939 "TEX parmx, coord, texture[$texs], 1D;\n"
940 "MUL cdelta.xyz, parmx.rrgg, {-1, 0, 1};\n"
943 static const char *unsharp_filt_template
=
944 "PARAM dcoord$out_comp = {$ptw_05, $pth_05, $ptw_05, -$pth_05};\n"
945 "ADD coord, fragment.texcoord[$in_tex].xyxy, dcoord$out_comp;\n"
946 "SUB coord2, fragment.texcoord[$in_tex].xyxy, dcoord$out_comp;\n"
947 SAMPLE("a.r","fragment.texcoord[$in_tex]","texture[$in_tex]")
948 SAMPLE("b.r","coord.xyxy","texture[$in_tex]")
949 SAMPLE("b.g","coord.zwzw","texture[$in_tex]")
950 "ADD b.r, b.r, b.g;\n"
951 SAMPLE("b.b","coord2.xyxy","texture[$in_tex]")
952 SAMPLE("b.g","coord2.zwzw","texture[$in_tex]")
953 "DP3 b, b, {0.25, 0.25, 0.25};\n"
954 "SUB b.r, a.r, b.r;\n"
955 "MAD textemp.r, b.r, {$strength}, a.r;\n"
956 "MOV yuv.$out_comp, textemp.r;\n";
958 static const char *unsharp_filt_template2
=
959 "PARAM dcoord$out_comp = {$ptw_12, $pth_12, $ptw_12, -$pth_12};\n"
960 "PARAM dcoord2$out_comp = {$ptw_15, 0, 0, $pth_15};\n"
961 "ADD coord, fragment.texcoord[$in_tex].xyxy, dcoord$out_comp;\n"
962 "SUB coord2, fragment.texcoord[$in_tex].xyxy, dcoord$out_comp;\n"
963 SAMPLE("a.r","fragment.texcoord[$in_tex]","texture[$in_tex]")
964 SAMPLE("b.r","coord.xyxy","texture[$in_tex]")
965 SAMPLE("b.g","coord.zwzw","texture[$in_tex]")
966 "ADD b.r, b.r, b.g;\n"
967 SAMPLE("b.b","coord2.xyxy","texture[$in_tex]")
968 SAMPLE("b.g","coord2.zwzw","texture[$in_tex]")
969 "ADD b.r, b.r, b.b;\n"
970 "ADD b.a, b.r, b.g;\n"
971 "ADD coord, fragment.texcoord[$in_tex].xyxy, dcoord2$out_comp;\n"
972 "SUB coord2, fragment.texcoord[$in_tex].xyxy, dcoord2$out_comp;\n"
973 SAMPLE("b.r","coord.xyxy","texture[$in_tex]")
974 SAMPLE("b.g","coord.zwzw","texture[$in_tex]")
975 "ADD b.r, b.r, b.g;\n"
976 SAMPLE("b.b","coord2.xyxy","texture[$in_tex]")
977 SAMPLE("b.g","coord2.zwzw","texture[$in_tex]")
978 "DP4 b.r, b, {-0.1171875, -0.1171875, -0.1171875, -0.09765625};\n"
979 "MAD b.r, a.r, {0.859375}, b.r;\n"
980 "MAD textemp.r, b.r, {$strength}, a.r;\n"
981 "MOV yuv.$out_comp, textemp.r;\n";
983 static const char *yuv_prog_template
=
984 "PARAM ycoef = {$cm11, $cm21, $cm31};\n"
985 "PARAM ucoef = {$cm12, $cm22, $cm32};\n"
986 "PARAM vcoef = {$cm13, $cm23, $cm33};\n"
987 "PARAM offsets = {$cm14, $cm24, $cm34};\n"
989 "MAD res.rgb, yuv.rrrr, ycoef, offsets;\n"
990 "MAD res.rgb, yuv.gggg, ucoef, res;\n"
991 "MAD result.color.rgb, yuv.bbbb, vcoef, res;\n"
994 static const char *yuv_pow_prog_template
=
995 "PARAM ycoef = {$cm11, $cm21, $cm31};\n"
996 "PARAM ucoef = {$cm12, $cm22, $cm32};\n"
997 "PARAM vcoef = {$cm13, $cm23, $cm33};\n"
998 "PARAM offsets = {$cm14, $cm24, $cm34};\n"
999 "PARAM gamma = {$gamma_r, $gamma_g, $gamma_b};\n"
1001 "MAD res.rgb, yuv.rrrr, ycoef, offsets;\n"
1002 "MAD res.rgb, yuv.gggg, ucoef, res;\n"
1003 "MAD_SAT res.rgb, yuv.bbbb, vcoef, res;\n"
1004 "POW result.color.r, res.r, gamma.r;\n"
1005 "POW result.color.g, res.g, gamma.g;\n"
1006 "POW result.color.b, res.b, gamma.b;\n"
1009 static const char *yuv_lookup_prog_template
=
1010 "PARAM ycoef = {$cm11, $cm21, $cm31, 0};\n"
1011 "PARAM ucoef = {$cm12, $cm22, $cm32, 0};\n"
1012 "PARAM vcoef = {$cm13, $cm23, $cm33, 0};\n"
1013 "PARAM offsets = {$cm14, $cm24, $cm34, 0.125};\n"
1015 "MAD res, yuv.rrrr, ycoef, offsets;\n"
1016 "MAD res.rgb, yuv.gggg, ucoef, res;\n"
1017 "MAD res.rgb, yuv.bbbb, vcoef, res;\n"
1018 "TEX result.color.r, res.raaa, texture[$conv_tex0], 2D;\n"
1019 "ADD res.a, res.a, 0.25;\n"
1020 "TEX result.color.g, res.gaaa, texture[$conv_tex0], 2D;\n"
1021 "ADD res.a, res.a, 0.25;\n"
1022 "TEX result.color.b, res.baaa, texture[$conv_tex0], 2D;\n"
1025 static const char *yuv_lookup3d_prog_template
=
1026 "TEX result.color, yuv, texture[$conv_tex0], 3D;\n"
1030 * \brief creates and initializes helper textures needed for scaling texture read
1031 * \param scaler scaler type to create texture for
1032 * \param texu contains next free texture unit number
1033 * \param texs texture unit ids for the scaler are stored in this array
1035 static void create_scaler_textures(GL
*gl
, int scaler
, int *texu
, char *texs
)
1038 case YUV_SCALER_BILIN
:
1039 case YUV_SCALER_BICUB_NOTEX
:
1040 case YUV_SCALER_UNSHARP
:
1041 case YUV_SCALER_UNSHARP2
:
1043 case YUV_SCALER_BICUB
:
1044 case YUV_SCALER_BICUB_X
:
1045 texs
[0] = (*texu
)++;
1046 gen_spline_lookup_tex(gl
, GL_TEXTURE0
+ texs
[0]);
1050 mp_msg(MSGT_VO
, MSGL_ERR
, "[gl] unknown scaler type %i\n", scaler
);
1054 //! resolution of texture for gamma lookup table
1055 #define LOOKUP_RES 512
1056 //! resolution for 3D yuv->rgb conversion lookup table
1057 #define LOOKUP_3DRES 32
1059 * \brief creates and initializes helper textures needed for yuv conversion
1060 * \param params struct containing parameters like brightness, gamma, ...
1061 * \param texu contains next free texture unit number
1062 * \param texs texture unit ids for the conversion are stored in this array
1064 static void create_conv_textures(GL
*gl
, gl_conversion_params_t
*params
,
1065 int *texu
, char *texs
)
1067 unsigned char *lookup_data
= NULL
;
1068 int conv
= YUV_CONVERSION(params
->type
);
1070 case YUV_CONVERSION_FRAGMENT
:
1071 case YUV_CONVERSION_FRAGMENT_POW
:
1073 case YUV_CONVERSION_FRAGMENT_LOOKUP
:
1074 texs
[0] = (*texu
)++;
1075 gl
->ActiveTexture(GL_TEXTURE0
+ texs
[0]);
1076 lookup_data
= malloc(4 * LOOKUP_RES
);
1077 mp_gen_gamma_map(lookup_data
, LOOKUP_RES
, params
->csp_params
.rgamma
);
1078 mp_gen_gamma_map(&lookup_data
[LOOKUP_RES
], LOOKUP_RES
,
1079 params
->csp_params
.ggamma
);
1080 mp_gen_gamma_map(&lookup_data
[2 * LOOKUP_RES
], LOOKUP_RES
,
1081 params
->csp_params
.bgamma
);
1082 glCreateClearTex(gl
, GL_TEXTURE_2D
, GL_LUMINANCE8
, GL_LUMINANCE
,
1083 GL_UNSIGNED_BYTE
, GL_LINEAR
, LOOKUP_RES
, 4, 0);
1084 glUploadTex(gl
, GL_TEXTURE_2D
, GL_LUMINANCE
, GL_UNSIGNED_BYTE
,
1085 lookup_data
, LOOKUP_RES
, 0, 0, LOOKUP_RES
, 4, 0);
1086 gl
->ActiveTexture(GL_TEXTURE0
);
1089 case YUV_CONVERSION_FRAGMENT_LOOKUP3D
:
1091 int sz
= LOOKUP_3DRES
+ 2; // texture size including borders
1092 if (!gl
->TexImage3D
) {
1093 mp_msg(MSGT_VO
, MSGL_ERR
, "[gl] Missing 3D texture function!\n");
1096 texs
[0] = (*texu
)++;
1097 gl
->ActiveTexture(GL_TEXTURE0
+ texs
[0]);
1098 lookup_data
= malloc(3 * sz
* sz
* sz
);
1099 mp_gen_yuv2rgb_map(¶ms
->csp_params
, lookup_data
, LOOKUP_3DRES
);
1100 glAdjustAlignment(gl
, sz
);
1101 gl
->PixelStorei(GL_UNPACK_ROW_LENGTH
, 0);
1102 gl
->TexImage3D(GL_TEXTURE_3D
, 0, 3, sz
, sz
, sz
, 1,
1103 GL_RGB
, GL_UNSIGNED_BYTE
, lookup_data
);
1104 gl
->TexParameterf(GL_TEXTURE_3D
, GL_TEXTURE_PRIORITY
, 1.0);
1105 gl
->TexParameteri(GL_TEXTURE_3D
, GL_TEXTURE_MIN_FILTER
, GL_LINEAR
);
1106 gl
->TexParameteri(GL_TEXTURE_3D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
1107 gl
->TexParameteri(GL_TEXTURE_3D
, GL_TEXTURE_WRAP_S
, GL_CLAMP
);
1108 gl
->TexParameteri(GL_TEXTURE_3D
, GL_TEXTURE_WRAP_T
, GL_CLAMP
);
1109 gl
->TexParameteri(GL_TEXTURE_3D
, GL_TEXTURE_WRAP_R
, GL_CLAMP
);
1110 gl
->ActiveTexture(GL_TEXTURE0
);
1115 mp_msg(MSGT_VO
, MSGL_ERR
, "[gl] unknown conversion type %i\n", conv
);
1121 * \brief adds a scaling texture read at the current fragment program position
1122 * \param scaler type of scaler to insert
1123 * \param prog pointer to fragment program so far
1124 * \param texs array containing the texture unit identifiers for this scaler
1125 * \param in_tex texture unit the scaler should read from
1126 * \param out_comp component of the yuv variable the scaler stores the result in
1127 * \param rect if rectangular (pixel) adressing should be used for in_tex
1128 * \param texw width of the in_tex texture
1129 * \param texh height of the in_tex texture
1130 * \param strength strength of filter effect if the scaler does some kind of filtering
1132 static void add_scaler(int scaler
, char **prog
, char *texs
,
1133 char in_tex
, char out_comp
, int rect
, int texw
, int texh
,
1136 const char *ttype
= rect
? "RECT" : "2D";
1137 const float ptw
= rect
? 1.0 : 1.0 / texw
;
1138 const float pth
= rect
? 1.0 : 1.0 / texh
;
1140 case YUV_SCALER_BILIN
:
1141 append_template(prog
, bilin_filt_template
);
1143 case YUV_SCALER_BICUB
:
1145 append_template(prog
, bicub_filt_template_RECT
);
1147 append_template(prog
, bicub_filt_template_2D
);
1149 case YUV_SCALER_BICUB_X
:
1151 append_template(prog
, bicub_x_filt_template_RECT
);
1153 append_template(prog
, bicub_x_filt_template_2D
);
1155 case YUV_SCALER_BICUB_NOTEX
:
1157 append_template(prog
, bicub_notex_filt_template_RECT
);
1159 append_template(prog
, bicub_notex_filt_template_2D
);
1161 case YUV_SCALER_UNSHARP
:
1162 append_template(prog
, unsharp_filt_template
);
1164 case YUV_SCALER_UNSHARP2
:
1165 append_template(prog
, unsharp_filt_template2
);
1169 replace_var_char(prog
, "texs", texs
[0]);
1170 replace_var_char(prog
, "in_tex", in_tex
);
1171 replace_var_char(prog
, "out_comp", out_comp
);
1172 replace_var_str(prog
, "tex_type", ttype
);
1173 replace_var_float(prog
, "texw", texw
);
1174 replace_var_float(prog
, "texh", texh
);
1175 replace_var_float(prog
, "ptw", ptw
);
1176 replace_var_float(prog
, "pth", pth
);
1178 // this is silly, not sure if that couldn't be in the shader source instead
1179 replace_var_float(prog
, "ptw_05", ptw
* 0.5);
1180 replace_var_float(prog
, "pth_05", pth
* 0.5);
1181 replace_var_float(prog
, "ptw_15", ptw
* 1.5);
1182 replace_var_float(prog
, "pth_15", pth
* 1.5);
1183 replace_var_float(prog
, "ptw_12", ptw
* 1.2);
1184 replace_var_float(prog
, "pth_12", pth
* 1.2);
1186 replace_var_float(prog
, "strength", strength
);
1189 static const struct {
1194 {"instructions", 0x88A0, 0x88A1},
1195 {"native instructions", 0x88A2, 0x88A3},
1196 {"temporaries", 0x88A4, 0x88A5},
1197 {"native temporaries", 0x88A6, 0x88A7},
1198 {"parameters", 0x88A8, 0x88A9},
1199 {"native parameters", 0x88AA, 0x88AB},
1200 {"attribs", 0x88AC, 0x88AD},
1201 {"native attribs", 0x88AE, 0x88AF},
1202 {"ALU instructions", 0x8805, 0x880B},
1203 {"TEX instructions", 0x8806, 0x880C},
1204 {"TEX indirections", 0x8807, 0x880D},
1205 {"native ALU instructions", 0x8808, 0x880E},
1206 {"native TEX instructions", 0x8809, 0x880F},
1207 {"native TEX indirections", 0x880A, 0x8810},
1212 * \brief load the specified GPU Program
1213 * \param target program target to load into, only GL_FRAGMENT_PROGRAM is tested
1214 * \param prog program string
1215 * \return 1 on success, 0 otherwise
1217 int loadGPUProgram(GL
*gl
, GLenum target
, char *prog
)
1220 GLint cur
= 0, max
= 0, err
= 0;
1221 if (!gl
->ProgramString
) {
1222 mp_msg(MSGT_VO
, MSGL_ERR
, "[gl] Missing GPU program function\n");
1225 gl
->ProgramString(target
, GL_PROGRAM_FORMAT_ASCII
, strlen(prog
), prog
);
1226 gl
->GetIntegerv(GL_PROGRAM_ERROR_POSITION
, &err
);
1228 mp_msg(MSGT_VO
, MSGL_ERR
,
1229 "[gl] Error compiling fragment program, make sure your card supports\n"
1230 "[gl] GL_ARB_fragment_program (use glxinfo to check).\n"
1231 "[gl] Error message:\n %s at %.10s\n",
1232 gl
->GetString(GL_PROGRAM_ERROR_STRING
), &prog
[err
]);
1235 if (!gl
->GetProgramiv
|| !mp_msg_test(MSGT_VO
, MSGL_DBG2
))
1237 mp_msg(MSGT_VO
, MSGL_V
, "[gl] Program statistics:\n");
1238 for (i
= 0; progstats
[i
].name
; i
++) {
1239 gl
->GetProgramiv(target
, progstats
[i
].cur
, &cur
);
1240 gl
->GetProgramiv(target
, progstats
[i
].max
, &max
);
1241 mp_msg(MSGT_VO
, MSGL_V
, "[gl] %s: %i/%i\n", progstats
[i
].name
, cur
,
1247 #define MAX_PROGSZ (1024 * 1024)
1250 * \brief setup a fragment program that will do YUV->RGB conversion
1251 * \param parms struct containing parameters like conversion and scaler type,
1254 static void glSetupYUVFragprog(GL
*gl
, gl_conversion_params_t
*params
)
1256 int type
= params
->type
;
1257 int texw
= params
->texw
;
1258 int texh
= params
->texh
;
1259 int rect
= params
->target
== GL_TEXTURE_RECTANGLE
;
1260 static const char prog_hdr
[] =
1262 "OPTION ARB_precision_hint_fastest;\n"
1263 // all scaler variables must go here so they aren't defined
1264 // multiple times when the same scaler is used more than once
1265 "TEMP coord, coord2, cdelta, parmx, parmy, a, b, yuv, textemp;\n";
1266 char *yuv_prog
= NULL
;
1267 char **prog
= &yuv_prog
;
1269 char lum_scale_texs
[1];
1270 char chrom_scale_texs
[1];
1273 // this is the conversion matrix, with y, u, v factors
1274 // for red, green, blue and the constant offsets
1275 float yuv2rgb
[3][4];
1276 create_conv_textures(gl
, params
, &cur_texu
, conv_texs
);
1277 create_scaler_textures(gl
, YUV_LUM_SCALER(type
), &cur_texu
, lum_scale_texs
);
1278 if (YUV_CHROM_SCALER(type
) == YUV_LUM_SCALER(type
))
1279 memcpy(chrom_scale_texs
, lum_scale_texs
, sizeof(chrom_scale_texs
));
1281 create_scaler_textures(gl
, YUV_CHROM_SCALER(type
), &cur_texu
,
1283 gl
->GetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS
, &i
);
1285 mp_msg(MSGT_VO
, MSGL_ERR
,
1286 "[gl] %i texture units needed for this type of YUV fragment support (found %i)\n",
1288 if (!gl
->ProgramString
) {
1289 mp_msg(MSGT_VO
, MSGL_FATAL
, "[gl] ProgramString function missing!\n");
1292 append_template(prog
, prog_hdr
);
1293 add_scaler(YUV_LUM_SCALER(type
), prog
, lum_scale_texs
,
1294 '0', 'r', rect
, texw
, texh
, params
->filter_strength
);
1295 add_scaler(YUV_CHROM_SCALER(type
), prog
,
1296 chrom_scale_texs
, '1', 'g', rect
, params
->chrom_texw
,
1297 params
->chrom_texh
, params
->filter_strength
);
1298 add_scaler(YUV_CHROM_SCALER(type
), prog
,
1299 chrom_scale_texs
, '2', 'b', rect
, params
->chrom_texw
,
1300 params
->chrom_texh
, params
->filter_strength
);
1301 mp_get_yuv2rgb_coeffs(¶ms
->csp_params
, yuv2rgb
);
1302 switch (YUV_CONVERSION(type
)) {
1303 case YUV_CONVERSION_FRAGMENT
:
1304 append_template(prog
, yuv_prog_template
);
1306 case YUV_CONVERSION_FRAGMENT_POW
:
1307 append_template(prog
, yuv_pow_prog_template
);
1309 case YUV_CONVERSION_FRAGMENT_LOOKUP
:
1310 append_template(prog
, yuv_lookup_prog_template
);
1312 case YUV_CONVERSION_FRAGMENT_LOOKUP3D
:
1313 append_template(prog
, yuv_lookup3d_prog_template
);
1316 mp_msg(MSGT_VO
, MSGL_ERR
, "[gl] unknown conversion type %i\n",
1317 YUV_CONVERSION(type
));
1320 for (int r
= 0; r
< 3; r
++) {
1321 for (int c
= 0; c
< 4; c
++) {
1323 char var
[] = { 'c', 'm', '1' + r
, '1' + c
, '\0' };
1324 replace_var_float(prog
, var
, yuv2rgb
[r
][c
]);
1327 replace_var_float(prog
, "gamma_r", (float)1.0 / params
->csp_params
.rgamma
);
1328 replace_var_float(prog
, "gamma_g", (float)1.0 / params
->csp_params
.ggamma
);
1329 replace_var_float(prog
, "gamma_b", (float)1.0 / params
->csp_params
.bgamma
);
1330 replace_var_char(prog
, "conv_tex0", conv_texs
[0]);
1331 mp_msg(MSGT_VO
, MSGL_DBG2
, "[gl] generated fragment program:\n%s\n",
1333 loadGPUProgram(gl
, GL_FRAGMENT_PROGRAM
, yuv_prog
);
1334 talloc_free(yuv_prog
);
1338 * \brief detect the best YUV->RGB conversion method available
1340 int glAutodetectYUVConversion(GL
*gl
)
1342 const char *extensions
= gl
->GetString(GL_EXTENSIONS
);
1343 if (!extensions
|| !gl
->MultiTexCoord2f
)
1344 return YUV_CONVERSION_NONE
;
1345 if (strstr(extensions
, "GL_ARB_fragment_program"))
1346 return YUV_CONVERSION_FRAGMENT
;
1347 if (strstr(extensions
, "GL_ATI_text_fragment_shader"))
1348 return YUV_CONVERSION_TEXT_FRAGMENT
;
1349 if (strstr(extensions
, "GL_ATI_fragment_shader"))
1350 return YUV_CONVERSION_COMBINERS_ATI
;
1351 return YUV_CONVERSION_NONE
;
1355 * \brief setup YUV->RGB conversion
1356 * \param parms struct containing parameters like conversion and scaler type,
1358 * \ingroup glconversion
1360 void glSetupYUVConversion(GL
*gl
, gl_conversion_params_t
*params
)
1362 if (params
->chrom_texw
== 0)
1363 params
->chrom_texw
= 1;
1364 if (params
->chrom_texh
== 0)
1365 params
->chrom_texh
= 1;
1366 switch (YUV_CONVERSION(params
->type
)) {
1367 case YUV_CONVERSION_COMBINERS_ATI
:
1368 glSetupYUVFragmentATI(gl
, ¶ms
->csp_params
, 0);
1370 case YUV_CONVERSION_TEXT_FRAGMENT
:
1371 glSetupYUVFragmentATI(gl
, ¶ms
->csp_params
, 1);
1373 case YUV_CONVERSION_FRAGMENT_LOOKUP
:
1374 case YUV_CONVERSION_FRAGMENT_LOOKUP3D
:
1375 case YUV_CONVERSION_FRAGMENT
:
1376 case YUV_CONVERSION_FRAGMENT_POW
:
1377 glSetupYUVFragprog(gl
, params
);
1379 case YUV_CONVERSION_NONE
:
1382 mp_msg(MSGT_VO
, MSGL_ERR
, "[gl] unknown conversion type %i\n",
1383 YUV_CONVERSION(params
->type
));
1388 * \brief enable the specified YUV conversion
1389 * \param target texture target for Y, U and V textures (e.g. GL_TEXTURE_2D)
1390 * \param type type of YUV conversion
1391 * \ingroup glconversion
1393 void glEnableYUVConversion(GL
*gl
, GLenum target
, int type
)
1395 switch (YUV_CONVERSION(type
)) {
1396 case YUV_CONVERSION_COMBINERS_ATI
:
1397 gl
->ActiveTexture(GL_TEXTURE1
);
1399 gl
->ActiveTexture(GL_TEXTURE2
);
1401 gl
->ActiveTexture(GL_TEXTURE0
);
1402 gl
->Enable(GL_FRAGMENT_SHADER_ATI
);
1404 case YUV_CONVERSION_TEXT_FRAGMENT
:
1405 gl
->ActiveTexture(GL_TEXTURE1
);
1407 gl
->ActiveTexture(GL_TEXTURE2
);
1409 gl
->ActiveTexture(GL_TEXTURE0
);
1410 gl
->Enable(GL_TEXT_FRAGMENT_SHADER_ATI
);
1412 case YUV_CONVERSION_FRAGMENT_LOOKUP3D
:
1413 case YUV_CONVERSION_FRAGMENT_LOOKUP
:
1414 case YUV_CONVERSION_FRAGMENT_POW
:
1415 case YUV_CONVERSION_FRAGMENT
:
1416 case YUV_CONVERSION_NONE
:
1417 gl
->Enable(GL_FRAGMENT_PROGRAM
);
1423 * \brief disable the specified YUV conversion
1424 * \param target texture target for Y, U and V textures (e.g. GL_TEXTURE_2D)
1425 * \param type type of YUV conversion
1426 * \ingroup glconversion
1428 void glDisableYUVConversion(GL
*gl
, GLenum target
, int type
)
1430 switch (YUV_CONVERSION(type
)) {
1431 case YUV_CONVERSION_COMBINERS_ATI
:
1432 gl
->ActiveTexture(GL_TEXTURE1
);
1433 gl
->Disable(target
);
1434 gl
->ActiveTexture(GL_TEXTURE2
);
1435 gl
->Disable(target
);
1436 gl
->ActiveTexture(GL_TEXTURE0
);
1437 gl
->Disable(GL_FRAGMENT_SHADER_ATI
);
1439 case YUV_CONVERSION_TEXT_FRAGMENT
:
1440 gl
->Disable(GL_TEXT_FRAGMENT_SHADER_ATI
);
1441 // HACK: at least the Mac OS X 10.5 PPC Radeon drivers are broken and
1442 // without this disable the texture units while the program is still
1443 // running (10.4 PPC seems to work without this though).
1445 gl
->ActiveTexture(GL_TEXTURE1
);
1446 gl
->Disable(target
);
1447 gl
->ActiveTexture(GL_TEXTURE2
);
1448 gl
->Disable(target
);
1449 gl
->ActiveTexture(GL_TEXTURE0
);
1451 case YUV_CONVERSION_FRAGMENT_LOOKUP3D
:
1452 case YUV_CONVERSION_FRAGMENT_LOOKUP
:
1453 case YUV_CONVERSION_FRAGMENT_POW
:
1454 case YUV_CONVERSION_FRAGMENT
:
1455 case YUV_CONVERSION_NONE
:
1456 gl
->Disable(GL_FRAGMENT_PROGRAM
);
1461 void glEnable3DLeft(GL
*gl
, int type
)
1465 case GL_3D_RED_CYAN
:
1466 gl
->ColorMask(GL_TRUE
, GL_FALSE
, GL_FALSE
, GL_FALSE
);
1468 case GL_3D_GREEN_MAGENTA
:
1469 gl
->ColorMask(GL_FALSE
, GL_TRUE
, GL_FALSE
, GL_FALSE
);
1471 case GL_3D_QUADBUFFER
:
1472 gl
->GetIntegerv(GL_DRAW_BUFFER
, &buffer
);
1476 case GL_FRONT_RIGHT
:
1477 buffer
= GL_FRONT_LEFT
;
1482 buffer
= GL_BACK_LEFT
;
1485 gl
->DrawBuffer(buffer
);
1490 void glEnable3DRight(GL
*gl
, int type
)
1494 case GL_3D_RED_CYAN
:
1495 gl
->ColorMask(GL_FALSE
, GL_TRUE
, GL_TRUE
, GL_FALSE
);
1497 case GL_3D_GREEN_MAGENTA
:
1498 gl
->ColorMask(GL_TRUE
, GL_FALSE
, GL_TRUE
, GL_FALSE
);
1500 case GL_3D_QUADBUFFER
:
1501 gl
->GetIntegerv(GL_DRAW_BUFFER
, &buffer
);
1505 case GL_FRONT_RIGHT
:
1506 buffer
= GL_FRONT_RIGHT
;
1511 buffer
= GL_BACK_RIGHT
;
1514 gl
->DrawBuffer(buffer
);
1519 void glDisable3D(GL
*gl
, int type
)
1523 case GL_3D_RED_CYAN
:
1524 case GL_3D_GREEN_MAGENTA
:
1525 gl
->ColorMask(GL_TRUE
, GL_TRUE
, GL_TRUE
, GL_TRUE
);
1527 case GL_3D_QUADBUFFER
:
1528 gl
->DrawBuffer(vo_doublebuffering
? GL_BACK
: GL_FRONT
);
1529 gl
->GetIntegerv(GL_DRAW_BUFFER
, &buffer
);
1533 case GL_FRONT_RIGHT
:
1542 gl
->DrawBuffer(buffer
);
1548 * \brief draw a texture part at given 2D coordinates
1549 * \param x screen top coordinate
1550 * \param y screen left coordinate
1551 * \param w screen width coordinate
1552 * \param h screen height coordinate
1553 * \param tx texture top coordinate in pixels
1554 * \param ty texture left coordinate in pixels
1555 * \param tw texture part width in pixels
1556 * \param th texture part height in pixels
1557 * \param sx width of texture in pixels
1558 * \param sy height of texture in pixels
1559 * \param rect_tex whether this texture uses texture_rectangle extension
1560 * \param is_yv12 if != 0, also draw the textures from units 1 and 2,
1561 * bits 8 - 15 and 16 - 23 specify the x and y scaling of those textures
1562 * \param flip flip the texture upside down
1563 * \ingroup gltexture
1565 void glDrawTex(GL
*gl
, GLfloat x
, GLfloat y
, GLfloat w
, GLfloat h
,
1566 GLfloat tx
, GLfloat ty
, GLfloat tw
, GLfloat th
,
1567 int sx
, int sy
, int rect_tex
, int is_yv12
, int flip
)
1569 int chroma_x_shift
= (is_yv12
>> 8) & 31;
1570 int chroma_y_shift
= (is_yv12
>> 16) & 31;
1571 GLfloat xscale
= 1 << chroma_x_shift
;
1572 GLfloat yscale
= 1 << chroma_y_shift
;
1573 GLfloat tx2
= tx
/ xscale
, ty2
= ty
/ yscale
, tw2
= tw
/ xscale
, th2
= th
/ yscale
;
1579 tx2
= tx
, ty2
= ty
, tw2
= tw
, th2
= th
;
1585 gl
->Begin(GL_QUADS
);
1586 gl
->TexCoord2f(tx
, ty
);
1588 gl
->MultiTexCoord2f(GL_TEXTURE1
, tx2
, ty2
);
1589 gl
->MultiTexCoord2f(GL_TEXTURE2
, tx2
, ty2
);
1592 gl
->TexCoord2f(tx
, ty
+ th
);
1594 gl
->MultiTexCoord2f(GL_TEXTURE1
, tx2
, ty2
+ th2
);
1595 gl
->MultiTexCoord2f(GL_TEXTURE2
, tx2
, ty2
+ th2
);
1597 gl
->Vertex2f(x
, y
+ h
);
1598 gl
->TexCoord2f(tx
+ tw
, ty
+ th
);
1600 gl
->MultiTexCoord2f(GL_TEXTURE1
, tx2
+ tw2
, ty2
+ th2
);
1601 gl
->MultiTexCoord2f(GL_TEXTURE2
, tx2
+ tw2
, ty2
+ th2
);
1603 gl
->Vertex2f(x
+ w
, y
+ h
);
1604 gl
->TexCoord2f(tx
+ tw
, ty
);
1606 gl
->MultiTexCoord2f(GL_TEXTURE1
, tx2
+ tw2
, ty2
);
1607 gl
->MultiTexCoord2f(GL_TEXTURE2
, tx2
+ tw2
, ty2
);
1609 gl
->Vertex2f(x
+ w
, y
);
1613 #ifdef CONFIG_GL_COCOA
1614 #include "cocoa_common.h"
1615 static int create_window_cocoa(struct MPGLContext
*ctx
, uint32_t d_width
,
1616 uint32_t d_height
, uint32_t flags
)
1618 if (vo_cocoa_create_window(ctx
->vo
, d_width
, d_height
, flags
) == 0) {
1619 return SET_WINDOW_OK
;
1621 return SET_WINDOW_FAILED
;
1624 static int setGlWindow_cocoa(MPGLContext
*ctx
)
1626 vo_cocoa_change_attributes(ctx
->vo
);
1627 getFunctions(ctx
->gl
, (void *)getdladdr
, NULL
);
1628 if (!ctx
->gl
->SwapInterval
)
1629 ctx
->gl
->SwapInterval
= vo_cocoa_swap_interval
;
1630 return SET_WINDOW_OK
;
1633 static void releaseGlContext_cocoa(MPGLContext
*ctx
)
1637 static void swapGlBuffers_cocoa(MPGLContext
*ctx
)
1639 vo_cocoa_swap_buffers();
1642 static int cocoa_check_events(struct vo
*vo
)
1644 return vo_cocoa_check_events(vo
);
1647 static void cocoa_update_xinerama_info(struct vo
*vo
)
1649 vo_cocoa_update_xinerama_info(vo
);
1652 static void cocoa_fullscreen(struct vo
*vo
)
1654 vo_cocoa_fullscreen(vo
);
1658 #ifdef CONFIG_GL_WIN32
1659 #include "w32_common.h"
1661 static int create_window_w32(struct MPGLContext
*ctx
, uint32_t d_width
,
1662 uint32_t d_height
, uint32_t flags
)
1664 if (!vo_w32_config(d_width
, d_height
, flags
))
1670 * \brief little helper since wglGetProcAddress definition does not fit our
1672 * \param procName name of function to look up
1673 * \return function pointer returned by wglGetProcAddress
1675 static void *w32gpa(const GLubyte
*procName
)
1678 void *res
= wglGetProcAddress(procName
);
1681 oglmod
= GetModuleHandle("opengl32.dll");
1682 return GetProcAddress(oglmod
, procName
);
1685 static int setGlWindow_w32(MPGLContext
*ctx
)
1687 HWND win
= vo_w32_window
;
1688 int *vinfo
= &ctx
->vinfo
.w32
;
1689 HGLRC
*context
= &ctx
->context
.w32
;
1691 HDC windc
= vo_w32_get_dc(win
);
1692 HGLRC new_context
= 0;
1693 int keep_context
= 0;
1694 int res
= SET_WINDOW_FAILED
;
1697 // should only be needed when keeping context, but not doing glFinish
1698 // can cause flickering even when we do not keep it.
1701 new_vinfo
= GetPixelFormat(windc
);
1702 if (*context
&& *vinfo
&& new_vinfo
&& *vinfo
== new_vinfo
) {
1703 // we can keep the wglContext
1704 new_context
= *context
;
1708 new_context
= wglCreateContext(windc
);
1710 mp_msg(MSGT_VO
, MSGL_FATAL
, "[gl] Could not create GL context!\n");
1716 if (!wglMakeCurrent(windc
, new_context
)) {
1717 mp_msg(MSGT_VO
, MSGL_FATAL
, "[gl] Could not set GL context!\n");
1719 wglDeleteContext(new_context
);
1724 vo_w32_window
= win
;
1727 GetClientRect(win
, &rect
);
1728 ctx
->vo
->dwidth
= rect
.right
;
1729 ctx
->vo
->dheight
= rect
.bottom
;
1731 if (!keep_context
) {
1733 wglDeleteContext(*context
);
1734 *context
= new_context
;
1736 getFunctions(gl
, w32gpa
, NULL
);
1738 // and inform that reinit is neccessary
1739 res
= SET_WINDOW_REINIT
;
1741 res
= SET_WINDOW_OK
;
1744 vo_w32_release_dc(win
, windc
);
1748 static void releaseGlContext_w32(MPGLContext
*ctx
)
1750 int *vinfo
= &ctx
->vinfo
.w32
;
1751 HGLRC
*context
= &ctx
->context
.w32
;
1754 wglMakeCurrent(0, 0);
1755 wglDeleteContext(*context
);
1760 static void swapGlBuffers_w32(MPGLContext
*ctx
)
1762 HDC vo_hdc
= vo_w32_get_dc(vo_w32_window
);
1763 SwapBuffers(vo_hdc
);
1764 vo_w32_release_dc(vo_w32_window
, vo_hdc
);
1767 //trivial wrappers (w32 code uses old vo API)
1768 static void new_vo_w32_ontop(struct vo
*vo
) { vo_w32_ontop(); }
1769 static void new_vo_w32_border(struct vo
*vo
) { vo_w32_border(); }
1770 static void new_vo_w32_fullscreen(struct vo
*vo
) { vo_w32_fullscreen(); }
1771 static int new_vo_w32_check_events(struct vo
*vo
) { return vo_w32_check_events(); }
1772 static void new_w32_update_xinerama_info(struct vo
*vo
) { w32_update_xinerama_info(); }
1774 #ifdef CONFIG_GL_X11
1775 #include "x11_common.h"
1777 static int create_window_x11(struct MPGLContext
*ctx
, uint32_t d_width
,
1778 uint32_t d_height
, uint32_t flags
)
1780 struct vo
*vo
= ctx
->vo
;
1782 static int default_glx_attribs
[] = {
1783 GLX_RGBA
, GLX_RED_SIZE
, 1, GLX_GREEN_SIZE
, 1, GLX_BLUE_SIZE
, 1,
1784 GLX_DOUBLEBUFFER
, None
1786 static int stereo_glx_attribs
[] = {
1787 GLX_RGBA
, GLX_RED_SIZE
, 1, GLX_GREEN_SIZE
, 1, GLX_BLUE_SIZE
, 1,
1788 GLX_DOUBLEBUFFER
, GLX_STEREO
, None
1790 XVisualInfo
*vinfo
= NULL
;
1791 if (flags
& VOFLAG_STEREO
) {
1792 vinfo
= glXChooseVisual(vo
->x11
->display
, vo
->x11
->screen
,
1793 stereo_glx_attribs
);
1795 mp_msg(MSGT_VO
, MSGL_ERR
, "[gl] Could not find a stereo visual,"
1796 " 3D will probably not work!\n");
1799 vinfo
= glXChooseVisual(vo
->x11
->display
, vo
->x11
->screen
,
1800 default_glx_attribs
);
1802 mp_msg(MSGT_VO
, MSGL_ERR
, "[gl] no GLX support present\n");
1805 mp_msg(MSGT_VO
, MSGL_V
, "[gl] GLX chose visual with ID 0x%x\n",
1806 (int)vinfo
->visualid
);
1808 Colormap colormap
= XCreateColormap(vo
->x11
->display
, vo
->x11
->rootwin
,
1809 vinfo
->visual
, AllocNone
);
1810 vo_x11_create_vo_window(vo
, vinfo
, vo
->dx
, vo
->dy
, d_width
, d_height
,
1811 flags
, colormap
, "gl");
1817 * \brief Returns the XVisualInfo associated with Window win.
1818 * \param win Window whose XVisualInfo is returne.
1819 * \return XVisualInfo of the window. Caller must use XFree to free it.
1821 static XVisualInfo
*getWindowVisualInfo(MPGLContext
*ctx
, Window win
)
1823 XWindowAttributes xw_attr
;
1824 XVisualInfo vinfo_template
;
1826 XGetWindowAttributes(ctx
->vo
->x11
->display
, win
, &xw_attr
);
1827 vinfo_template
.visualid
= XVisualIDFromVisual(xw_attr
.visual
);
1828 return XGetVisualInfo(ctx
->vo
->x11
->display
, VisualIDMask
, &vinfo_template
, &tmp
);
1831 static void appendstr(char **dst
, const char *str
)
1837 newsize
= strlen(*dst
) + 1 + strlen(str
) + 1;
1838 newstr
= realloc(*dst
, newsize
);
1847 * \brief Changes the window in which video is displayed.
1848 * If possible only transfers the context to the new window, otherwise
1849 * creates a new one, which must be initialized by the caller.
1850 * \param vinfo Currently used visual.
1851 * \param context Currently used context.
1852 * \param win window that should be used for drawing.
1853 * \return one of SET_WINDOW_FAILED, SET_WINDOW_OK or SET_WINDOW_REINIT.
1854 * In case of SET_WINDOW_REINIT the context could not be transfered
1855 * and the caller must initialize it correctly.
1856 * \ingroup glcontext
1858 static int setGlWindow_x11(MPGLContext
*ctx
)
1860 XVisualInfo
**vinfo
= &ctx
->vinfo
.x11
;
1861 GLXContext
*context
= &ctx
->context
.x11
;
1862 Display
*display
= ctx
->vo
->x11
->display
;
1863 Window win
= ctx
->vo
->x11
->window
;
1864 XVisualInfo
*new_vinfo
;
1865 GLXContext new_context
= NULL
;
1866 int keep_context
= 0;
1869 // should only be needed when keeping context, but not doing glFinish
1870 // can cause flickering even when we do not keep it.
1873 new_vinfo
= getWindowVisualInfo(ctx
, win
);
1874 if (*context
&& *vinfo
&& new_vinfo
&&
1875 (*vinfo
)->visualid
== new_vinfo
->visualid
) {
1876 // we can keep the GLXContext
1877 new_context
= *context
;
1883 new_context
= glXCreateContext(display
, new_vinfo
, NULL
, True
);
1885 mp_msg(MSGT_VO
, MSGL_FATAL
, "[gl] Could not create GLX context!\n");
1887 return SET_WINDOW_FAILED
;
1892 if (!glXMakeCurrent(display
, ctx
->vo
->x11
->window
, new_context
)) {
1893 mp_msg(MSGT_VO
, MSGL_FATAL
, "[gl] Could not set GLX context!\n");
1894 if (!keep_context
) {
1895 glXDestroyContext(display
, new_context
);
1898 return SET_WINDOW_FAILED
;
1902 ctx
->vo
->x11
->window
= win
;
1903 vo_x11_update_geometry(ctx
->vo
, 1);
1904 if (!keep_context
) {
1905 void *(*getProcAddress
)(const GLubyte
*);
1906 const char *(*glXExtStr
)(Display
*, int);
1907 char *glxstr
= strdup("");
1909 glXDestroyContext(display
, *context
);
1910 *context
= new_context
;
1914 getProcAddress
= getdladdr("glXGetProcAddress");
1915 if (!getProcAddress
)
1916 getProcAddress
= getdladdr("glXGetProcAddressARB");
1917 glXExtStr
= getdladdr("glXQueryExtensionsString");
1919 appendstr(&glxstr
, glXExtStr(display
, DefaultScreen(display
)));
1920 glXExtStr
= getdladdr("glXGetClientString");
1922 appendstr(&glxstr
, glXExtStr(display
, GLX_EXTENSIONS
));
1923 glXExtStr
= getdladdr("glXGetServerString");
1925 appendstr(&glxstr
, glXExtStr(display
, GLX_EXTENSIONS
));
1927 getFunctions(gl
, getProcAddress
, glxstr
);
1928 if (!gl
->GenPrograms
&& gl
->GetString
&&
1930 strstr(gl
->GetString(GL_EXTENSIONS
), "GL_ARB_vertex_program")) {
1931 mp_msg(MSGT_VO
, MSGL_WARN
,
1932 "Broken glXGetProcAddress detected, trying workaround\n");
1933 getFunctions(gl
, NULL
, glxstr
);
1937 // and inform that reinit is neccessary
1938 return SET_WINDOW_REINIT
;
1940 return SET_WINDOW_OK
;
1944 * \brief free the VisualInfo and GLXContext of an OpenGL context.
1945 * \ingroup glcontext
1947 static void releaseGlContext_x11(MPGLContext
*ctx
)
1949 XVisualInfo
**vinfo
= &ctx
->vinfo
.x11
;
1950 GLXContext
*context
= &ctx
->context
.x11
;
1951 Display
*display
= ctx
->vo
->x11
->display
;
1958 glXMakeCurrent(display
, None
, NULL
);
1959 glXDestroyContext(display
, *context
);
1964 static void swapGlBuffers_x11(MPGLContext
*ctx
)
1966 glXSwapBuffers(ctx
->vo
->x11
->display
, ctx
->vo
->x11
->window
);
1970 #ifdef CONFIG_GL_SDL
1971 #include "sdl_common.h"
1973 static int create_window_sdl(struct MPGLContext
*ctx
, uint32_t d_width
,
1974 uint32_t d_height
, uint32_t flags
)
1976 SDL_WM_SetCaption(vo_get_window_title(ctx
->vo
), NULL
);
1977 ctx
->vo
->dwidth
= d_width
;
1978 ctx
->vo
->dheight
= d_height
;
1982 static void swapGlBuffers_sdl(MPGLContext
*ctx
)
1984 SDL_GL_SwapBuffers();
1987 static void *sdlgpa(const GLubyte
*name
)
1989 return SDL_GL_GetProcAddress(name
);
1992 static int setGlWindow_sdl(MPGLContext
*ctx
)
1994 if (sdl_set_mode(0, SDL_OPENGL
| SDL_RESIZABLE
) < 0)
1995 return SET_WINDOW_FAILED
;
1996 SDL_GL_LoadLibrary(NULL
);
1997 getFunctions(ctx
->gl
, sdlgpa
, NULL
);
1998 return SET_WINDOW_OK
;
2001 static void releaseGlContext_sdl(MPGLContext
*ctx
)
2005 static int sdl_check_events(struct vo
*vo
)
2009 while (SDL_PollEvent(&event
))
2010 res
|= sdl_default_handle_event(&event
);
2011 // poll "events" from within MPlayer code
2012 res
|= sdl_default_handle_event(NULL
);
2013 if (res
& VO_EVENT_RESIZE
)
2014 sdl_set_mode(0, SDL_OPENGL
| SDL_RESIZABLE
);
2018 static void new_sdl_update_xinerama_info(struct vo
*vo
) { sdl_update_xinerama_info(); }
2019 static void new_vo_sdl_fullscreen(struct vo
*vo
) { vo_sdl_fullscreen(); }
2023 MPGLContext
*init_mpglcontext(enum MPGLType type
, struct vo
*vo
)
2026 if (type
== GLTYPE_AUTO
) {
2027 ctx
= init_mpglcontext(GLTYPE_COCOA
, vo
);
2030 ctx
= init_mpglcontext(GLTYPE_W32
, vo
);
2033 ctx
= init_mpglcontext(GLTYPE_X11
, vo
);
2036 return init_mpglcontext(GLTYPE_SDL
, vo
);
2038 ctx
= talloc_zero(NULL
, MPGLContext
);
2039 ctx
->gl
= talloc_zero(ctx
, GL
);
2042 switch (ctx
->type
) {
2043 #ifdef CONFIG_GL_COCOA
2045 ctx
->create_window
= create_window_cocoa
;
2046 ctx
->setGlWindow
= setGlWindow_cocoa
;
2047 ctx
->releaseGlContext
= releaseGlContext_cocoa
;
2048 ctx
->swapGlBuffers
= swapGlBuffers_cocoa
;
2049 ctx
->check_events
= cocoa_check_events
;
2050 ctx
->update_xinerama_info
= cocoa_update_xinerama_info
;
2051 ctx
->fullscreen
= cocoa_fullscreen
;
2052 if (vo_cocoa_init(vo
))
2056 #ifdef CONFIG_GL_WIN32
2058 ctx
->create_window
= create_window_w32
;
2059 ctx
->setGlWindow
= setGlWindow_w32
;
2060 ctx
->releaseGlContext
= releaseGlContext_w32
;
2061 ctx
->swapGlBuffers
= swapGlBuffers_w32
;
2062 ctx
->update_xinerama_info
= new_w32_update_xinerama_info
;
2063 ctx
->border
= new_vo_w32_border
;
2064 ctx
->check_events
= new_vo_w32_check_events
;
2065 ctx
->fullscreen
= new_vo_w32_fullscreen
;
2066 ctx
->ontop
= new_vo_w32_ontop
;
2067 //the win32 code is hardcoded to use the deprecated vo API
2073 #ifdef CONFIG_GL_X11
2075 ctx
->create_window
= create_window_x11
;
2076 ctx
->setGlWindow
= setGlWindow_x11
;
2077 ctx
->releaseGlContext
= releaseGlContext_x11
;
2078 ctx
->swapGlBuffers
= swapGlBuffers_x11
;
2079 ctx
->update_xinerama_info
= update_xinerama_info
;
2080 ctx
->border
= vo_x11_border
;
2081 ctx
->check_events
= vo_x11_check_events
;
2082 ctx
->fullscreen
= vo_x11_fullscreen
;
2083 ctx
->ontop
= vo_x11_ontop
;
2088 #ifdef CONFIG_GL_SDL
2090 ctx
->create_window
= create_window_sdl
;
2091 ctx
->setGlWindow
= setGlWindow_sdl
;
2092 ctx
->releaseGlContext
= releaseGlContext_sdl
;
2093 ctx
->swapGlBuffers
= swapGlBuffers_sdl
;
2094 ctx
->update_xinerama_info
= new_sdl_update_xinerama_info
;
2095 ctx
->check_events
= sdl_check_events
;
2096 ctx
->fullscreen
= new_vo_sdl_fullscreen
;
2097 //the SDL code is hardcoded to use the deprecated vo API
2108 void uninit_mpglcontext(MPGLContext
*ctx
)
2112 ctx
->releaseGlContext(ctx
);
2113 switch (ctx
->type
) {
2114 #ifdef CONFIG_GL_COCOA
2116 vo_cocoa_uninit(ctx
->vo
);
2119 #ifdef CONFIG_GL_WIN32
2124 #ifdef CONFIG_GL_X11
2126 vo_x11_uninit(ctx
->vo
);
2129 #ifdef CONFIG_GL_SDL