2 * Copyright © 2012 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
26 #include "glformats.h"
30 #include "formatquery.h"
35 #include "genmipmap.h"
36 #include "shaderimage.h"
37 #include "texcompress.h"
38 #include "textureview.h"
41 _is_renderable(struct gl_context
*ctx
, GLenum internalformat
)
43 /* Section 4.4.4 on page 212 of the GLES 3.0.4 spec says:
45 * "An internal format is color-renderable if it is one of the
46 * formats from table 3.13 noted as color-renderable or if it
47 * is unsized format RGBA or RGB."
49 * Therefore, we must accept GL_RGB and GL_RGBA here.
51 if (internalformat
!= GL_RGB
&& internalformat
!= GL_RGBA
&&
52 _mesa_base_fbo_format(ctx
, internalformat
) == 0)
58 /* Handles the cases where either ARB_internalformat_query or
59 * ARB_internalformat_query2 have to return an error.
62 _legal_parameters(struct gl_context
*ctx
, GLenum target
, GLenum internalformat
,
63 GLenum pname
, GLsizei bufSize
, GLint
*params
)
66 bool query2
= _mesa_has_ARB_internalformat_query2(ctx
);
68 /* The ARB_internalformat_query2 spec says:
70 * "The INVALID_ENUM error is generated if the <target> parameter to
71 * GetInternalformati*v is not one of the targets listed in Table 6.xx.
75 case GL_TEXTURE_1D_ARRAY
:
77 case GL_TEXTURE_2D_ARRAY
:
79 case GL_TEXTURE_CUBE_MAP
:
80 case GL_TEXTURE_CUBE_MAP_ARRAY
:
81 case GL_TEXTURE_RECTANGLE
:
82 case GL_TEXTURE_BUFFER
:
84 /* The ARB_internalformat_query spec says:
86 * "If the <target> parameter to GetInternalformativ is not one of
87 * TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY
88 * or RENDERBUFFER then an INVALID_ENUM error is generated.
90 _mesa_error(ctx
, GL_INVALID_ENUM
,
91 "glGetInternalformativ(target=%s)",
92 _mesa_enum_to_string(target
));
101 case GL_TEXTURE_2D_MULTISAMPLE
:
102 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
103 /* The non-existence of ARB_texture_multisample is treated in
104 * ARB_internalformat_query implementation like an error.
107 !(_mesa_has_ARB_texture_multisample(ctx
) || _mesa_is_gles31(ctx
))) {
108 _mesa_error(ctx
, GL_INVALID_ENUM
,
109 "glGetInternalformativ(target=%s)",
110 _mesa_enum_to_string(target
));
117 _mesa_error(ctx
, GL_INVALID_ENUM
,
118 "glGetInternalformativ(target=%s)",
119 _mesa_enum_to_string(target
));
124 /* The ARB_internalformat_query2 spec says:
126 * "The INVALID_ENUM error is generated if the <pname> parameter is
127 * not one of the listed possibilities.
131 case GL_NUM_SAMPLE_COUNTS
:
134 case GL_SRGB_DECODE_ARB
:
135 /* The ARB_internalformat_query2 spec says:
137 * "If ARB_texture_sRGB_decode or EXT_texture_sRGB_decode or
138 * equivalent functionality is not supported, queries for the
139 * SRGB_DECODE_ARB <pname> set the INVALID_ENUM error.
141 if (!_mesa_has_EXT_texture_sRGB_decode(ctx
)) {
142 _mesa_error(ctx
, GL_INVALID_ENUM
,
143 "glGetInternalformativ(pname=%s)",
144 _mesa_enum_to_string(pname
));
148 case GL_INTERNALFORMAT_SUPPORTED
:
149 case GL_INTERNALFORMAT_PREFERRED
:
150 case GL_INTERNALFORMAT_RED_SIZE
:
151 case GL_INTERNALFORMAT_GREEN_SIZE
:
152 case GL_INTERNALFORMAT_BLUE_SIZE
:
153 case GL_INTERNALFORMAT_ALPHA_SIZE
:
154 case GL_INTERNALFORMAT_DEPTH_SIZE
:
155 case GL_INTERNALFORMAT_STENCIL_SIZE
:
156 case GL_INTERNALFORMAT_SHARED_SIZE
:
157 case GL_INTERNALFORMAT_RED_TYPE
:
158 case GL_INTERNALFORMAT_GREEN_TYPE
:
159 case GL_INTERNALFORMAT_BLUE_TYPE
:
160 case GL_INTERNALFORMAT_ALPHA_TYPE
:
161 case GL_INTERNALFORMAT_DEPTH_TYPE
:
162 case GL_INTERNALFORMAT_STENCIL_TYPE
:
167 case GL_MAX_COMBINED_DIMENSIONS
:
168 case GL_COLOR_COMPONENTS
:
169 case GL_DEPTH_COMPONENTS
:
170 case GL_STENCIL_COMPONENTS
:
171 case GL_COLOR_RENDERABLE
:
172 case GL_DEPTH_RENDERABLE
:
173 case GL_STENCIL_RENDERABLE
:
174 case GL_FRAMEBUFFER_RENDERABLE
:
175 case GL_FRAMEBUFFER_RENDERABLE_LAYERED
:
176 case GL_FRAMEBUFFER_BLEND
:
178 case GL_READ_PIXELS_FORMAT
:
179 case GL_READ_PIXELS_TYPE
:
180 case GL_TEXTURE_IMAGE_FORMAT
:
181 case GL_TEXTURE_IMAGE_TYPE
:
182 case GL_GET_TEXTURE_IMAGE_FORMAT
:
183 case GL_GET_TEXTURE_IMAGE_TYPE
:
185 case GL_MANUAL_GENERATE_MIPMAP
:
186 case GL_AUTO_GENERATE_MIPMAP
:
187 case GL_COLOR_ENCODING
:
191 case GL_VERTEX_TEXTURE
:
192 case GL_TESS_CONTROL_TEXTURE
:
193 case GL_TESS_EVALUATION_TEXTURE
:
194 case GL_GEOMETRY_TEXTURE
:
195 case GL_FRAGMENT_TEXTURE
:
196 case GL_COMPUTE_TEXTURE
:
197 case GL_TEXTURE_SHADOW
:
198 case GL_TEXTURE_GATHER
:
199 case GL_TEXTURE_GATHER_SHADOW
:
200 case GL_SHADER_IMAGE_LOAD
:
201 case GL_SHADER_IMAGE_STORE
:
202 case GL_SHADER_IMAGE_ATOMIC
:
203 case GL_IMAGE_TEXEL_SIZE
:
204 case GL_IMAGE_COMPATIBILITY_CLASS
:
205 case GL_IMAGE_PIXEL_FORMAT
:
206 case GL_IMAGE_PIXEL_TYPE
:
207 case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
:
208 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST
:
209 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST
:
210 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE
:
211 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE
:
212 case GL_TEXTURE_COMPRESSED
:
213 case GL_TEXTURE_COMPRESSED_BLOCK_WIDTH
:
214 case GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT
:
215 case GL_TEXTURE_COMPRESSED_BLOCK_SIZE
:
216 case GL_CLEAR_BUFFER
:
217 case GL_TEXTURE_VIEW
:
218 case GL_VIEW_COMPATIBILITY_CLASS
:
219 case GL_NUM_TILING_TYPES_EXT
:
220 case GL_TILING_TYPES_EXT
:
221 /* The ARB_internalformat_query spec says:
223 * "If the <pname> parameter to GetInternalformativ is not SAMPLES
224 * or NUM_SAMPLE_COUNTS, then an INVALID_ENUM error is generated."
227 _mesa_error(ctx
, GL_INVALID_ENUM
,
228 "glGetInternalformativ(pname=%s)",
229 _mesa_enum_to_string(pname
));
236 _mesa_error(ctx
, GL_INVALID_ENUM
,
237 "glGetInternalformativ(pname=%s)",
238 _mesa_enum_to_string(pname
));
242 /* The ARB_internalformat_query spec says:
244 * "If the <bufSize> parameter to GetInternalformativ is negative, then
245 * an INVALID_VALUE error is generated."
247 * Nothing is said in ARB_internalformat_query2 but we assume the same.
250 _mesa_error(ctx
, GL_INVALID_VALUE
,
251 "glGetInternalformativ(target=%s)",
252 _mesa_enum_to_string(target
));
256 /* The ARB_internalformat_query spec says:
258 * "If the <internalformat> parameter to GetInternalformativ is not
259 * color-, depth- or stencil-renderable, then an INVALID_ENUM error is
262 if (!query2
&& !_is_renderable(ctx
, internalformat
)) {
263 _mesa_error(ctx
, GL_INVALID_ENUM
,
264 "glGetInternalformativ(internalformat=%s)",
265 _mesa_enum_to_string(internalformat
));
272 /* Sets the appropriate "unsupported" response as defined by the
273 * ARB_internalformat_query2 spec for each each <pname>.
276 _set_default_response(GLenum pname
, GLint buffer
[16])
278 /* The ARB_internalformat_query2 defines which is the reponse best
279 * representing "not supported" or "not applicable" for each <pname>.
282 * - size- or count-based queries will return zero,
283 * - support-, format- or type-based queries will return NONE,
284 * - boolean-based queries will return FALSE, and
285 * - list-based queries return no entries."
289 case GL_TILING_TYPES_EXT
:
292 case GL_MAX_COMBINED_DIMENSIONS
:
293 /* This value can be a 64-bit value. As the default is the 32-bit query,
294 * we pack 2 32-bit integers. So we need to clean both */
299 case GL_NUM_SAMPLE_COUNTS
:
300 case GL_INTERNALFORMAT_RED_SIZE
:
301 case GL_INTERNALFORMAT_GREEN_SIZE
:
302 case GL_INTERNALFORMAT_BLUE_SIZE
:
303 case GL_INTERNALFORMAT_ALPHA_SIZE
:
304 case GL_INTERNALFORMAT_DEPTH_SIZE
:
305 case GL_INTERNALFORMAT_STENCIL_SIZE
:
306 case GL_INTERNALFORMAT_SHARED_SIZE
:
311 case GL_IMAGE_TEXEL_SIZE
:
312 case GL_TEXTURE_COMPRESSED_BLOCK_WIDTH
:
313 case GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT
:
314 case GL_TEXTURE_COMPRESSED_BLOCK_SIZE
:
315 case GL_NUM_TILING_TYPES_EXT
:
319 case GL_INTERNALFORMAT_PREFERRED
:
320 case GL_INTERNALFORMAT_RED_TYPE
:
321 case GL_INTERNALFORMAT_GREEN_TYPE
:
322 case GL_INTERNALFORMAT_BLUE_TYPE
:
323 case GL_INTERNALFORMAT_ALPHA_TYPE
:
324 case GL_INTERNALFORMAT_DEPTH_TYPE
:
325 case GL_INTERNALFORMAT_STENCIL_TYPE
:
326 case GL_FRAMEBUFFER_RENDERABLE
:
327 case GL_FRAMEBUFFER_RENDERABLE_LAYERED
:
328 case GL_FRAMEBUFFER_BLEND
:
330 case GL_READ_PIXELS_FORMAT
:
331 case GL_READ_PIXELS_TYPE
:
332 case GL_TEXTURE_IMAGE_FORMAT
:
333 case GL_TEXTURE_IMAGE_TYPE
:
334 case GL_GET_TEXTURE_IMAGE_FORMAT
:
335 case GL_GET_TEXTURE_IMAGE_TYPE
:
336 case GL_MANUAL_GENERATE_MIPMAP
:
337 case GL_AUTO_GENERATE_MIPMAP
:
338 case GL_COLOR_ENCODING
:
341 case GL_SRGB_DECODE_ARB
:
343 case GL_VERTEX_TEXTURE
:
344 case GL_TESS_CONTROL_TEXTURE
:
345 case GL_TESS_EVALUATION_TEXTURE
:
346 case GL_GEOMETRY_TEXTURE
:
347 case GL_FRAGMENT_TEXTURE
:
348 case GL_COMPUTE_TEXTURE
:
349 case GL_TEXTURE_SHADOW
:
350 case GL_TEXTURE_GATHER
:
351 case GL_TEXTURE_GATHER_SHADOW
:
352 case GL_SHADER_IMAGE_LOAD
:
353 case GL_SHADER_IMAGE_STORE
:
354 case GL_SHADER_IMAGE_ATOMIC
:
355 case GL_IMAGE_COMPATIBILITY_CLASS
:
356 case GL_IMAGE_PIXEL_FORMAT
:
357 case GL_IMAGE_PIXEL_TYPE
:
358 case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
:
359 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST
:
360 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST
:
361 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE
:
362 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE
:
363 case GL_CLEAR_BUFFER
:
364 case GL_TEXTURE_VIEW
:
365 case GL_VIEW_COMPATIBILITY_CLASS
:
369 case GL_INTERNALFORMAT_SUPPORTED
:
370 case GL_COLOR_COMPONENTS
:
371 case GL_DEPTH_COMPONENTS
:
372 case GL_STENCIL_COMPONENTS
:
373 case GL_COLOR_RENDERABLE
:
374 case GL_DEPTH_RENDERABLE
:
375 case GL_STENCIL_RENDERABLE
:
377 case GL_TEXTURE_COMPRESSED
:
378 buffer
[0] = GL_FALSE
;
382 unreachable("invalid 'pname'");
387 _is_target_supported(struct gl_context
*ctx
, GLenum target
)
389 /* The ARB_internalformat_query2 spec says:
391 * "if a particular type of <target> is not supported by the
392 * implementation the "unsupported" answer should be given.
393 * This is not an error."
395 * For OpenGL ES, queries can only be used with GL_RENDERBUFFER or MS.
401 if (!_mesa_is_desktop_gl(ctx
))
405 case GL_TEXTURE_1D_ARRAY
:
406 if (!_mesa_has_EXT_texture_array(ctx
))
410 case GL_TEXTURE_2D_ARRAY
:
411 if (!_mesa_has_EXT_texture_array(ctx
))
415 case GL_TEXTURE_CUBE_MAP
:
416 if (ctx
->API
!= API_OPENGL_CORE
&& !_mesa_has_ARB_texture_cube_map(ctx
))
420 case GL_TEXTURE_CUBE_MAP_ARRAY
:
421 if (!_mesa_has_ARB_texture_cube_map_array(ctx
))
425 case GL_TEXTURE_RECTANGLE
:
426 if (!_mesa_has_ARB_texture_rectangle(ctx
))
430 case GL_TEXTURE_BUFFER
:
431 if (!_mesa_has_ARB_texture_buffer_object(ctx
))
435 case GL_RENDERBUFFER
:
436 if (!(_mesa_has_ARB_framebuffer_object(ctx
) ||
437 _mesa_is_gles3(ctx
)))
441 case GL_TEXTURE_2D_MULTISAMPLE
:
442 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
443 if (!(_mesa_has_ARB_texture_multisample(ctx
) ||
444 _mesa_is_gles31(ctx
)))
449 unreachable("invalid target");
456 _is_resource_supported(struct gl_context
*ctx
, GLenum target
,
457 GLenum internalformat
, GLenum pname
)
459 /* From the ARB_internalformat_query2 spec:
461 * In the following descriptions, the term /resource/ is used to generically
462 * refer to an object of the appropriate type that has been created with
463 * <internalformat> and <target>. If the particular <target> and
464 * <internalformat> combination do not make sense, ... the "unsupported"
465 * answer should be given. This is not an error.
468 /* In the ARB_internalformat_query2 spec wording, some <pnames> do not care
469 * about the /resource/ being supported or not, we return 'true' for those.
472 case GL_INTERNALFORMAT_SUPPORTED
:
473 case GL_INTERNALFORMAT_PREFERRED
:
474 case GL_COLOR_COMPONENTS
:
475 case GL_DEPTH_COMPONENTS
:
476 case GL_STENCIL_COMPONENTS
:
477 case GL_COLOR_RENDERABLE
:
478 case GL_DEPTH_RENDERABLE
:
479 case GL_STENCIL_RENDERABLE
:
487 case GL_TEXTURE_1D_ARRAY
:
489 case GL_TEXTURE_2D_ARRAY
:
491 case GL_TEXTURE_CUBE_MAP
:
492 case GL_TEXTURE_CUBE_MAP_ARRAY
:
493 case GL_TEXTURE_RECTANGLE
:
494 /* Based on what Mesa does for glTexImage1D/2D/3D and
495 * glCompressedTexImage1D/2D/3D functions.
497 if (_mesa_base_tex_format(ctx
, internalformat
) < 0)
500 /* additional checks for depth textures */
501 if (!_mesa_legal_texture_base_format_for_target(ctx
, target
, internalformat
))
504 /* additional checks for compressed textures */
505 if (_mesa_is_compressed_format(ctx
, internalformat
) &&
506 (!_mesa_target_can_be_compressed(ctx
, target
, internalformat
, NULL
) ||
507 _mesa_format_no_online_compression(ctx
, internalformat
)))
511 case GL_TEXTURE_2D_MULTISAMPLE
:
512 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
513 /* Based on what Mesa does for glTexImage2D/3DMultisample,
514 * glTexStorage2D/3DMultisample and
515 * glTextureStorage2D/3DMultisample functions.
517 if (!_mesa_is_renderable_texture_format(ctx
, internalformat
))
521 case GL_TEXTURE_BUFFER
:
522 /* Based on what Mesa does for the glTexBuffer function. */
523 if (_mesa_validate_texbuffer_format(ctx
, internalformat
) ==
528 case GL_RENDERBUFFER
:
529 /* Based on what Mesa does for glRenderbufferStorage(Multisample) and
530 * glNamedRenderbufferStorage functions.
532 if (!_mesa_base_fbo_format(ctx
, internalformat
))
537 unreachable("bad target");
544 _is_internalformat_supported(struct gl_context
*ctx
, GLenum target
,
545 GLenum internalformat
)
547 /* From the ARB_internalformat_query2 specification:
549 * "- INTERNALFORMAT_SUPPORTED: If <internalformat> is an internal format
550 * that is supported by the implementation in at least some subset of
551 * possible operations, TRUE is written to <params>. If <internalformat>
552 * if not a valid token for any internal format usage, FALSE is returned.
554 * <internalformats> that must be supported (in GL 4.2 or later) include
556 * - "sized internal formats" from Table 3.12, 3.13, and 3.15,
557 * - any specific "compressed internal format" from Table 3.14,
558 * - any "image unit format" from Table 3.21.
559 * - any generic "compressed internal format" from Table 3.14, if the
560 * implementation accepts it for any texture specification commands, and
561 * - unsized or base internal format, if the implementation accepts
562 * it for texture or image specification.
566 /* At this point an internalformat is valid if it is valid as a texture or
567 * as a renderbuffer format. The checks are different because those methods
568 * return different values when passing non supported internalformats */
569 if (_mesa_base_tex_format(ctx
, internalformat
) < 0 &&
570 _mesa_base_fbo_format(ctx
, internalformat
) == 0)
573 /* Let the driver have the final word */
574 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
,
575 GL_INTERNALFORMAT_SUPPORTED
, buffer
);
577 return (buffer
[0] == GL_TRUE
);
581 _legal_target_for_framebuffer_texture_layer(struct gl_context
*ctx
,
586 case GL_TEXTURE_1D_ARRAY
:
587 case GL_TEXTURE_2D_ARRAY
:
588 case GL_TEXTURE_CUBE_MAP_ARRAY
:
589 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
590 case GL_TEXTURE_CUBE_MAP
:
598 _mesa_generic_type_for_internal_format(GLenum internalFormat
)
600 if (_mesa_is_enum_format_unsigned_int(internalFormat
))
601 return GL_UNSIGNED_BYTE
;
602 else if (_mesa_is_enum_format_signed_int(internalFormat
))
608 /* default implementation of QueryInternalFormat driverfunc, for
609 * drivers not implementing ARB_internalformat_query2.
612 _mesa_query_internal_format_default(struct gl_context
*ctx
, GLenum target
,
613 GLenum internalFormat
, GLenum pname
,
620 case GL_NUM_SAMPLE_COUNTS
:
624 case GL_INTERNALFORMAT_SUPPORTED
:
628 case GL_INTERNALFORMAT_PREFERRED
:
629 params
[0] = internalFormat
;
632 case GL_READ_PIXELS_FORMAT
: {
633 GLenum base_format
= _mesa_base_tex_format(ctx
, internalFormat
);
634 switch (base_format
) {
635 case GL_STENCIL_INDEX
:
636 case GL_DEPTH_COMPONENT
:
637 case GL_DEPTH_STENCIL
:
643 params
[0] = base_format
;
652 case GL_READ_PIXELS_TYPE
:
653 case GL_TEXTURE_IMAGE_TYPE
:
654 case GL_GET_TEXTURE_IMAGE_TYPE
: {
655 GLenum base_format
= _mesa_base_tex_format(ctx
, internalFormat
);
657 params
[0] = _mesa_generic_type_for_internal_format(internalFormat
);
663 case GL_TEXTURE_IMAGE_FORMAT
:
664 case GL_GET_TEXTURE_IMAGE_FORMAT
: {
665 GLenum format
= GL_NONE
;
666 GLenum base_format
= _mesa_base_tex_format(ctx
, internalFormat
);
667 if (base_format
> 0) {
668 if (_mesa_is_enum_format_integer(internalFormat
))
669 format
= _mesa_base_format_to_integer_format(base_format
);
671 format
= base_format
;
678 case GL_MANUAL_GENERATE_MIPMAP
:
679 case GL_AUTO_GENERATE_MIPMAP
:
682 case GL_SRGB_DECODE_ARB
:
683 case GL_VERTEX_TEXTURE
:
684 case GL_TESS_CONTROL_TEXTURE
:
685 case GL_TESS_EVALUATION_TEXTURE
:
686 case GL_GEOMETRY_TEXTURE
:
687 case GL_FRAGMENT_TEXTURE
:
688 case GL_COMPUTE_TEXTURE
:
689 case GL_SHADER_IMAGE_LOAD
:
690 case GL_SHADER_IMAGE_STORE
:
691 case GL_SHADER_IMAGE_ATOMIC
:
692 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST
:
693 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST
:
694 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE
:
695 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE
:
696 case GL_CLEAR_BUFFER
:
697 case GL_TEXTURE_VIEW
:
698 case GL_TEXTURE_SHADOW
:
699 case GL_TEXTURE_GATHER
:
700 case GL_TEXTURE_GATHER_SHADOW
:
701 case GL_FRAMEBUFFER_RENDERABLE
:
702 case GL_FRAMEBUFFER_RENDERABLE_LAYERED
:
703 case GL_FRAMEBUFFER_BLEND
:
705 params
[0] = GL_FULL_SUPPORT
;
707 case GL_NUM_TILING_TYPES_EXT
:
710 case GL_TILING_TYPES_EXT
:
711 params
[0] = GL_OPTIMAL_TILING_EXT
;
712 params
[1] = GL_LINEAR_TILING_EXT
;
716 _set_default_response(pname
, params
);
722 * For MAX_WIDTH/MAX_HEIGHT/MAX_DEPTH it returns the equivalent GetInteger
723 * pname for a Getinternalformat pname/target combination. target/pname
724 * combinations that would return 0 due dimension number or unsupported status
725 * should be already filtered out
727 * Note that this means that the returned value would be independent of the
728 * internalformat. This possibility is already mentioned at the Issue 7 of the
729 * arb_internalformat_query2 spec.
732 _equivalent_size_pname(GLenum target
,
738 case GL_TEXTURE_2D_MULTISAMPLE
:
739 return GL_MAX_TEXTURE_SIZE
;
741 return GL_MAX_3D_TEXTURE_SIZE
;
742 case GL_TEXTURE_CUBE_MAP
:
743 return GL_MAX_CUBE_MAP_TEXTURE_SIZE
;
744 case GL_TEXTURE_RECTANGLE
:
745 return GL_MAX_RECTANGLE_TEXTURE_SIZE
;
746 case GL_RENDERBUFFER
:
747 return GL_MAX_RENDERBUFFER_SIZE
;
748 case GL_TEXTURE_1D_ARRAY
:
749 if (pname
== GL_MAX_HEIGHT
)
750 return GL_MAX_ARRAY_TEXTURE_LAYERS
;
752 return GL_MAX_TEXTURE_SIZE
;
753 case GL_TEXTURE_2D_ARRAY
:
754 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
755 if (pname
== GL_MAX_DEPTH
)
756 return GL_MAX_ARRAY_TEXTURE_LAYERS
;
758 return GL_MAX_TEXTURE_SIZE
;
759 case GL_TEXTURE_CUBE_MAP_ARRAY
:
760 if (pname
== GL_MAX_DEPTH
)
761 return GL_MAX_ARRAY_TEXTURE_LAYERS
;
763 return GL_MAX_CUBE_MAP_TEXTURE_SIZE
;
764 case GL_TEXTURE_BUFFER
:
765 return GL_MAX_TEXTURE_BUFFER_SIZE
;
772 * Returns the dimensions associated to a target. GL_TEXTURE_BUFFER and
773 * GL_RENDERBUFFER have associated a dimension, but they are not textures
774 * per-se, so we can't just call _mesa_get_texture_dimension directly.
777 _get_target_dimensions(GLenum target
)
780 case GL_TEXTURE_BUFFER
:
782 case GL_RENDERBUFFER
:
785 return _mesa_get_texture_dimensions(target
);
790 * Returns the minimum amount of dimensions associated to a pname. So for
791 * example, if querying GL_MAX_HEIGHT, it is assumed that your target would
792 * have as minimum 2 dimensions.
794 * Useful to handle sentences like this from query2 spec:
798 * If the resource does not have at least two dimensions
802 _get_min_dimensions(GLenum pname
)
817 * Similar to teximage.c:check_multisample_target, but independent of the
821 _is_multisample_target(GLenum target
)
824 case GL_TEXTURE_2D_MULTISAMPLE
:
825 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
834 _mesa_GetInternalformativ(GLenum target
, GLenum internalformat
, GLenum pname
,
835 GLsizei bufSize
, GLint
*params
)
838 GET_CURRENT_CONTEXT(ctx
);
840 ASSERT_OUTSIDE_BEGIN_END(ctx
);
842 /* ARB_internalformat_query is also mandatory for ARB_internalformat_query2 */
843 if (!(_mesa_has_ARB_internalformat_query(ctx
) ||
844 _mesa_is_gles3(ctx
))) {
845 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetInternalformativ");
849 assert(ctx
->Driver
.QueryInternalFormat
!= NULL
);
851 if (!_legal_parameters(ctx
, target
, internalformat
, pname
, bufSize
, params
))
854 /* initialize the contents of the temporary buffer */
855 memcpy(buffer
, params
, MIN2(bufSize
, 16) * sizeof(GLint
));
857 /* Use the 'unsupported' response defined by the spec for every pname
858 * as the default answer.
860 _set_default_response(pname
, buffer
);
862 if (!_is_target_supported(ctx
, target
) ||
863 !_is_internalformat_supported(ctx
, target
, internalformat
) ||
864 !_is_resource_supported(ctx
, target
, internalformat
, pname
))
870 case GL_NUM_SAMPLE_COUNTS
:
871 /* The ARB_internalformat_query2 sets the response as 'unsupported' for
872 * SAMPLES and NUM_SAMPLE_COUNTS:
874 * "If <internalformat> is not color-renderable, depth-renderable, or
875 * stencil-renderable (as defined in section 4.4.4), or if <target>
876 * does not support multiple samples (ie other than
877 * TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY,
880 if ((target
!= GL_RENDERBUFFER
&&
881 target
!= GL_TEXTURE_2D_MULTISAMPLE
&&
882 target
!= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
) ||
883 !_is_renderable(ctx
, internalformat
))
886 /* The GL ES 3.0 specification, section 6.1.15 page 236 says:
888 * "Since multisampling is not supported for signed and unsigned
889 * integer internal formats, the value of NUM_SAMPLE_COUNTS will be
890 * zero for such formats.
892 * Since OpenGL ES 3.1 adds support for multisampled integer formats, we
893 * have to check the version for 30 exactly.
895 if (pname
== GL_NUM_SAMPLE_COUNTS
&& ctx
->API
== API_OPENGLES2
&&
896 ctx
->Version
== 30 && _mesa_is_enum_format_integer(internalformat
)) {
900 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
904 case GL_INTERNALFORMAT_SUPPORTED
:
905 /* Having a supported <internalformat> is implemented as a prerequisite
906 * for all the <pnames>. Thus, if we reach this point, the internalformat is
912 case GL_INTERNALFORMAT_PREFERRED
:
913 /* The ARB_internalformat_query2 spec says:
915 * "- INTERNALFORMAT_PREFERRED: The implementation-preferred internal
916 * format for representing resources of the specified <internalformat> is
917 * returned in <params>.
919 * Therefore, we let the driver answer. Note that if we reach this
920 * point, it means that the internalformat is supported, so the driver
921 * is called just to try to get a preferred format. If not supported,
922 * GL_NONE was already returned and the driver is not called.
924 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
928 case GL_INTERNALFORMAT_RED_SIZE
:
929 case GL_INTERNALFORMAT_GREEN_SIZE
:
930 case GL_INTERNALFORMAT_BLUE_SIZE
:
931 case GL_INTERNALFORMAT_ALPHA_SIZE
:
932 case GL_INTERNALFORMAT_DEPTH_SIZE
:
933 case GL_INTERNALFORMAT_STENCIL_SIZE
:
934 case GL_INTERNALFORMAT_SHARED_SIZE
:
935 case GL_INTERNALFORMAT_RED_TYPE
:
936 case GL_INTERNALFORMAT_GREEN_TYPE
:
937 case GL_INTERNALFORMAT_BLUE_TYPE
:
938 case GL_INTERNALFORMAT_ALPHA_TYPE
:
939 case GL_INTERNALFORMAT_DEPTH_TYPE
:
940 case GL_INTERNALFORMAT_STENCIL_TYPE
: {
942 mesa_format texformat
;
944 if (target
!= GL_RENDERBUFFER
) {
945 if (!_mesa_legal_get_tex_level_parameter_target(ctx
, target
, true))
948 baseformat
= _mesa_base_tex_format(ctx
, internalformat
);
950 baseformat
= _mesa_base_fbo_format(ctx
, internalformat
);
953 /* Let the driver choose the texture format.
955 * Disclaimer: I am considering that drivers use for renderbuffers the
956 * same format-choice logic as for textures.
958 texformat
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
, internalformat
,
959 GL_NONE
/*format */, GL_NONE
/* type */);
961 if (texformat
== MESA_FORMAT_NONE
|| baseformat
<= 0)
964 /* Implementation based on what Mesa does for glGetTexLevelParameteriv
965 * and glGetRenderbufferParameteriv functions.
967 if (pname
== GL_INTERNALFORMAT_SHARED_SIZE
) {
968 if (_mesa_has_EXT_texture_shared_exponent(ctx
) &&
969 target
!= GL_TEXTURE_BUFFER
&&
970 target
!= GL_RENDERBUFFER
&&
971 texformat
== MESA_FORMAT_R9G9B9E5_FLOAT
) {
977 if (!_mesa_base_format_has_channel(baseformat
, pname
))
981 case GL_INTERNALFORMAT_DEPTH_SIZE
:
982 if (ctx
->API
!= API_OPENGL_CORE
&&
983 !_mesa_has_ARB_depth_texture(ctx
) &&
984 target
!= GL_RENDERBUFFER
&&
985 target
!= GL_TEXTURE_BUFFER
)
988 case GL_INTERNALFORMAT_RED_SIZE
:
989 case GL_INTERNALFORMAT_GREEN_SIZE
:
990 case GL_INTERNALFORMAT_BLUE_SIZE
:
991 case GL_INTERNALFORMAT_ALPHA_SIZE
:
992 case GL_INTERNALFORMAT_STENCIL_SIZE
:
993 buffer
[0] = _mesa_get_format_bits(texformat
, pname
);
996 case GL_INTERNALFORMAT_DEPTH_TYPE
:
997 if (!_mesa_has_ARB_texture_float(ctx
))
1000 case GL_INTERNALFORMAT_RED_TYPE
:
1001 case GL_INTERNALFORMAT_GREEN_TYPE
:
1002 case GL_INTERNALFORMAT_BLUE_TYPE
:
1003 case GL_INTERNALFORMAT_ALPHA_TYPE
:
1004 case GL_INTERNALFORMAT_STENCIL_TYPE
:
1005 buffer
[0] = _mesa_get_format_datatype(texformat
);
1015 /* For WIDTH/HEIGHT/DEPTH/LAYERS there is no reason to think that the
1016 * returned values should be different to the values returned by
1017 * GetInteger with MAX_TEXTURE_SIZE, MAX_3D_TEXTURE_SIZE, etc.*/
1020 case GL_MAX_DEPTH
: {
1023 GLint min_dimensions
;
1025 /* From query2:MAX_HEIGHT spec (as example):
1027 * "If the resource does not have at least two dimensions, or if the
1028 * resource is unsupported, zero is returned."
1030 dimensions
= _get_target_dimensions(target
);
1031 min_dimensions
= _get_min_dimensions(pname
);
1032 if (dimensions
< min_dimensions
)
1035 get_pname
= _equivalent_size_pname(target
, pname
);
1039 _mesa_GetIntegerv(get_pname
, buffer
);
1044 if (!_mesa_has_EXT_texture_array(ctx
))
1047 if (!_mesa_is_array_texture(target
))
1050 _mesa_GetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS
, buffer
);
1053 case GL_MAX_COMBINED_DIMENSIONS
:{
1054 GLint64 combined_value
= 1;
1055 GLenum max_dimensions_pnames
[] = {
1062 GLint current_value
;
1064 /* Combining the dimensions. Note that for array targets, this would
1065 * automatically include the value of MAX_LAYERS, as that value is
1066 * returned as MAX_HEIGHT or MAX_DEPTH */
1067 for (i
= 0; i
< 4; i
++) {
1068 if (max_dimensions_pnames
[i
] == GL_SAMPLES
&&
1069 !_is_multisample_target(target
))
1072 _mesa_GetInternalformativ(target
, internalformat
,
1073 max_dimensions_pnames
[i
],
1076 if (current_value
!= 0)
1077 combined_value
*= current_value
;
1080 if (_mesa_is_cube_map_texture(target
))
1081 combined_value
*= 6;
1083 /* We pack the 64-bit value on two 32-bit values. Calling the 32-bit
1084 * query, this would work as far as the value can be hold on a 32-bit
1085 * signed integer. For the 64-bit query, the wrapper around the 32-bit
1086 * query will unpack the value */
1087 memcpy(buffer
, &combined_value
, sizeof(GLint64
));
1091 case GL_COLOR_COMPONENTS
:
1092 /* The ARB_internalformat_query2 spec says:
1094 * "- COLOR_COMPONENTS: If the internal format contains any color
1095 * components (R, G, B, or A), TRUE is returned in <params>.
1096 * If the internal format is unsupported or contains no color
1097 * components, FALSE is returned."
1099 if (_mesa_is_color_format(internalformat
))
1100 buffer
[0] = GL_TRUE
;
1103 case GL_DEPTH_COMPONENTS
:
1104 /* The ARB_internalformat_query2 spec says:
1106 * "- DEPTH_COMPONENTS: If the internal format contains a depth
1107 * component (D), TRUE is returned in <params>. If the internal format
1108 * is unsupported or contains no depth component, FALSE is returned."
1110 if (_mesa_is_depth_format(internalformat
) ||
1111 _mesa_is_depthstencil_format(internalformat
))
1112 buffer
[0] = GL_TRUE
;
1115 case GL_STENCIL_COMPONENTS
:
1116 /* The ARB_internalformat_query2 spec says:
1118 * "- STENCIL_COMPONENTS: If the internal format contains a stencil
1119 * component (S), TRUE is returned in <params>. If the internal format
1120 * is unsupported or contains no stencil component, FALSE is returned.
1122 if (_mesa_is_stencil_format(internalformat
) ||
1123 _mesa_is_depthstencil_format(internalformat
))
1124 buffer
[0] = GL_TRUE
;
1127 case GL_COLOR_RENDERABLE
:
1128 case GL_DEPTH_RENDERABLE
:
1129 case GL_STENCIL_RENDERABLE
:
1130 if (!_is_renderable(ctx
, internalformat
))
1133 if (pname
== GL_COLOR_RENDERABLE
) {
1134 if (!_mesa_is_color_format(internalformat
))
1137 GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalformat
);
1138 if (baseFormat
!= GL_DEPTH_STENCIL
&&
1139 ((pname
== GL_DEPTH_RENDERABLE
&& baseFormat
!= GL_DEPTH_COMPONENT
) ||
1140 (pname
== GL_STENCIL_RENDERABLE
&& baseFormat
!= GL_STENCIL_INDEX
)))
1144 buffer
[0] = GL_TRUE
;
1147 case GL_FRAMEBUFFER_RENDERABLE_LAYERED
:
1148 if (!_mesa_has_EXT_texture_array(ctx
) ||
1149 _legal_target_for_framebuffer_texture_layer(ctx
, target
))
1152 case GL_FRAMEBUFFER_RENDERABLE
:
1153 case GL_FRAMEBUFFER_BLEND
:
1154 if (!_mesa_has_ARB_framebuffer_object(ctx
))
1157 if (target
== GL_TEXTURE_BUFFER
||
1158 !_is_renderable(ctx
, internalformat
))
1161 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1165 case GL_READ_PIXELS
:
1166 case GL_READ_PIXELS_FORMAT
:
1167 case GL_READ_PIXELS_TYPE
:
1168 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1172 case GL_TEXTURE_IMAGE_FORMAT
:
1173 case GL_GET_TEXTURE_IMAGE_FORMAT
:
1174 case GL_TEXTURE_IMAGE_TYPE
:
1175 case GL_GET_TEXTURE_IMAGE_TYPE
:
1176 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1181 case GL_MANUAL_GENERATE_MIPMAP
:
1182 case GL_AUTO_GENERATE_MIPMAP
:
1183 if (!_mesa_is_valid_generate_texture_mipmap_target(ctx
, target
) ||
1184 !_mesa_is_valid_generate_texture_mipmap_internalformat(ctx
,
1189 if (pname
== GL_MIPMAP
) {
1190 buffer
[0] = GL_TRUE
;
1193 else if (pname
== GL_MANUAL_GENERATE_MIPMAP
) {
1194 if (!_mesa_has_ARB_framebuffer_object(ctx
))
1198 /* From ARB_internalformat_query2:
1199 * "Dependencies on OpenGL 3.2 (Core Profile)
1200 * In core profiles for OpenGL 3.2 and later versions, queries
1201 * for the AUTO_GENERATE_MIPMAP <pname> return the appropriate
1202 * unsupported response."
1204 if (_mesa_is_desktop_gl(ctx
) && ctx
->Version
>= 32)
1208 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1212 case GL_COLOR_ENCODING
:
1213 if (!_mesa_is_color_format(internalformat
))
1216 if (_mesa_is_srgb_format(internalformat
))
1217 buffer
[0] = GL_SRGB
;
1219 buffer
[0] = GL_LINEAR
;
1223 if (!_mesa_has_EXT_texture_sRGB(ctx
) ||
1224 !_mesa_is_srgb_format(internalformat
)) {
1228 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1233 if (!_mesa_has_EXT_framebuffer_sRGB(ctx
) ||
1234 !_mesa_is_color_format(internalformat
)) {
1238 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1242 case GL_SRGB_DECODE_ARB
:
1243 /* Presence of EXT_texture_sRGB_decode was already verified */
1244 if (!_mesa_has_EXT_texture_sRGB(ctx
) ||
1245 target
== GL_RENDERBUFFER
||
1246 !_mesa_is_srgb_format(internalformat
)) {
1250 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1255 /* If it doesn't allow to set sampler parameters then it would not allow
1256 * to set a filter different to GL_NEAREST. In practice, this method
1257 * only filters out MULTISAMPLE/MULTISAMPLE_ARRAY */
1258 if (!_mesa_target_allows_setting_sampler_parameters(target
))
1261 if (_mesa_is_enum_format_integer(internalformat
))
1264 if (target
== GL_TEXTURE_BUFFER
)
1267 /* At this point we know that multi-texel filtering is supported. We
1268 * need to call the driver to know if it is CAVEAT_SUPPORT or
1271 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1275 case GL_VERTEX_TEXTURE
:
1276 case GL_TESS_CONTROL_TEXTURE
:
1277 case GL_TESS_EVALUATION_TEXTURE
:
1278 case GL_GEOMETRY_TEXTURE
:
1279 case GL_FRAGMENT_TEXTURE
:
1280 case GL_COMPUTE_TEXTURE
:
1281 if (target
== GL_RENDERBUFFER
)
1284 if ((pname
== GL_TESS_CONTROL_TEXTURE
||
1285 pname
== GL_TESS_EVALUATION_TEXTURE
) &&
1286 !_mesa_has_tessellation(ctx
))
1289 if (pname
== GL_GEOMETRY_TEXTURE
&& !_mesa_has_geometry_shaders(ctx
))
1292 if (pname
== GL_COMPUTE_TEXTURE
&& !_mesa_has_compute_shaders(ctx
))
1295 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1299 case GL_TEXTURE_GATHER
:
1300 case GL_TEXTURE_GATHER_SHADOW
:
1301 if (!_mesa_has_ARB_texture_gather(ctx
))
1305 case GL_TEXTURE_SHADOW
:
1306 /* Only depth or depth-stencil image formats make sense in shadow
1308 if (pname
!= GL_TEXTURE_GATHER
&&
1309 !_mesa_is_depth_format(internalformat
) &&
1310 !_mesa_is_depthstencil_format(internalformat
))
1313 /* Validate the target for shadow and gather operations */
1316 case GL_TEXTURE_2D_ARRAY
:
1317 case GL_TEXTURE_CUBE_MAP
:
1318 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1319 case GL_TEXTURE_RECTANGLE
:
1323 case GL_TEXTURE_1D_ARRAY
:
1324 /* 1D and 1DArray textures are not admitted in gather operations */
1325 if (pname
!= GL_TEXTURE_SHADOW
)
1333 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1337 case GL_SHADER_IMAGE_LOAD
:
1338 case GL_SHADER_IMAGE_STORE
:
1339 if (!_mesa_has_ARB_shader_image_load_store(ctx
))
1342 /* We call to _mesa_is_shader_image_format_supported
1343 * using "internalformat" as parameter, because the
1344 * the ARB_internalformat_query2 spec says:
1345 * "In this case the <internalformat> is the value of the <format>
1346 * parameter that is passed to BindImageTexture."
1348 if (target
== GL_RENDERBUFFER
||
1349 !_mesa_is_shader_image_format_supported(ctx
, internalformat
))
1352 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1356 case GL_SHADER_IMAGE_ATOMIC
:
1357 if (!_mesa_has_ARB_shader_image_load_store(ctx
))
1360 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1364 case GL_IMAGE_TEXEL_SIZE
: {
1365 mesa_format image_format
;
1367 if (!_mesa_has_ARB_shader_image_load_store(ctx
) ||
1368 target
== GL_RENDERBUFFER
)
1371 image_format
= _mesa_get_shader_image_format(internalformat
);
1372 if (image_format
== MESA_FORMAT_NONE
)
1375 /* We return bits */
1376 buffer
[0] = (_mesa_get_format_bytes(image_format
) * 8);
1380 case GL_IMAGE_COMPATIBILITY_CLASS
:
1381 if (!_mesa_has_ARB_shader_image_load_store(ctx
) ||
1382 target
== GL_RENDERBUFFER
)
1385 buffer
[0] = _mesa_get_image_format_class(internalformat
);
1388 case GL_IMAGE_PIXEL_FORMAT
: {
1391 if (!_mesa_has_ARB_shader_image_load_store(ctx
) ||
1392 target
== GL_RENDERBUFFER
||
1393 !_mesa_is_shader_image_format_supported(ctx
, internalformat
))
1396 base_format
= _mesa_base_tex_format(ctx
, internalformat
);
1397 if (base_format
== -1)
1400 if (_mesa_is_enum_format_integer(internalformat
))
1401 buffer
[0] = _mesa_base_format_to_integer_format(base_format
);
1403 buffer
[0] = base_format
;
1407 case GL_IMAGE_PIXEL_TYPE
: {
1408 mesa_format image_format
;
1412 if (!_mesa_has_ARB_shader_image_load_store(ctx
) ||
1413 target
== GL_RENDERBUFFER
)
1416 image_format
= _mesa_get_shader_image_format(internalformat
);
1417 if (image_format
== MESA_FORMAT_NONE
)
1420 _mesa_uncompressed_format_to_type_and_comps(image_format
, &datatype
,
1425 buffer
[0] = datatype
;
1429 case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
: {
1430 if (!_mesa_has_ARB_shader_image_load_store(ctx
))
1433 /* As pointed by the spec quote below, this pname query should return
1434 * the same value that GetTexParameter. So if the target is not valid
1435 * for GetTexParameter we return the unsupported value. The check below
1436 * is the same target check used by GetTexParameter.
1438 int targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1439 if (targetIndex
< 0 || targetIndex
== TEXTURE_BUFFER_INDEX
)
1442 /* From spec: "Equivalent to calling GetTexParameter with <value> set
1443 * to IMAGE_FORMAT_COMPATIBILITY_TYPE."
1445 * GetTexParameter just returns
1446 * tex_obj->ImageFormatCompatibilityType. We create a fake tex_obj
1447 * just with the purpose of getting the value.
1449 struct gl_texture_object
*tex_obj
= _mesa_new_texture_object(ctx
, 0, target
);
1450 buffer
[0] = tex_obj
->ImageFormatCompatibilityType
;
1451 _mesa_delete_texture_object(ctx
, tex_obj
);
1456 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST
:
1457 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST
:
1458 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE
:
1459 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE
:
1460 if (target
== GL_RENDERBUFFER
)
1463 if (!_mesa_is_depthstencil_format(internalformat
)) {
1464 if (((pname
== GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST
||
1465 pname
== GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE
) &&
1466 !_mesa_is_depth_format(internalformat
)) ||
1467 ((pname
== GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST
||
1468 pname
== GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE
) &&
1469 !_mesa_is_stencil_format(internalformat
)))
1473 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1477 case GL_TEXTURE_COMPRESSED
:
1478 buffer
[0] = _mesa_is_compressed_format(ctx
, internalformat
);
1481 case GL_TEXTURE_COMPRESSED_BLOCK_WIDTH
:
1482 case GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT
:
1483 case GL_TEXTURE_COMPRESSED_BLOCK_SIZE
: {
1484 mesa_format mesaformat
;
1487 mesaformat
= _mesa_glenum_to_compressed_format(internalformat
);
1488 if (mesaformat
== MESA_FORMAT_NONE
)
1491 block_size
= _mesa_get_format_bytes(mesaformat
);
1492 assert(block_size
> 0);
1494 if (pname
== GL_TEXTURE_COMPRESSED_BLOCK_SIZE
) {
1495 buffer
[0] = block_size
;
1497 GLuint bwidth
, bheight
;
1499 /* Returns the width and height in pixels. We return bytes */
1500 _mesa_get_format_block_size(mesaformat
, &bwidth
, &bheight
);
1501 assert(bwidth
> 0 && bheight
> 0);
1503 if (pname
== GL_TEXTURE_COMPRESSED_BLOCK_WIDTH
)
1504 buffer
[0] = block_size
/ bheight
;
1506 buffer
[0] = block_size
/ bwidth
;
1511 case GL_CLEAR_BUFFER
:
1512 if (target
!= GL_TEXTURE_BUFFER
)
1515 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1519 case GL_TEXTURE_VIEW
:
1520 case GL_VIEW_COMPATIBILITY_CLASS
:
1521 if (!_mesa_has_ARB_texture_view(ctx
) ||
1522 target
== GL_TEXTURE_BUFFER
||
1523 target
== GL_RENDERBUFFER
)
1526 if (pname
== GL_TEXTURE_VIEW
) {
1527 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1530 GLenum view_class
= _mesa_texture_view_lookup_view_class(ctx
,
1532 if (view_class
== GL_FALSE
)
1535 buffer
[0] = view_class
;
1539 case GL_NUM_TILING_TYPES_EXT
:
1540 case GL_TILING_TYPES_EXT
:
1541 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1546 unreachable("bad param");
1550 if (bufSize
!= 0 && params
== NULL
) {
1551 /* Emit a warning to aid application debugging, but go ahead and do the
1552 * memcpy (and probably crash) anyway.
1555 "glGetInternalformativ(bufSize = %d, but params = NULL)",
1559 /* Copy the data from the temporary buffer to the buffer supplied by the
1560 * application. Clamp the size of the copy to the size supplied by the
1563 memcpy(params
, buffer
, MIN2(bufSize
, 16) * sizeof(GLint
));
1569 _mesa_GetInternalformati64v(GLenum target
, GLenum internalformat
,
1570 GLenum pname
, GLsizei bufSize
, GLint64
*params
)
1574 GLsizei realSize
= MIN2(bufSize
, 16);
1577 GET_CURRENT_CONTEXT(ctx
);
1579 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1581 if (!_mesa_has_ARB_internalformat_query2(ctx
)) {
1582 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetInternalformati64v");
1586 /* For SAMPLES there are cases where params needs to remain unmodified. As
1587 * no pname can return a negative value, we fill params32 with negative
1588 * values as reference values, that can be used to know what copy-back to
1590 for (i
= 0; i
< realSize
; i
++)
1593 /* For GL_MAX_COMBINED_DIMENSIONS we need to get back 2 32-bit integers,
1594 * and at the same time we only need 2. So for that pname, we call the
1595 * 32-bit query with bufSize 2, except on the case of bufSize 0, that is
1596 * basically like asking to not get the value, but that is a caller
1598 if (pname
== GL_MAX_COMBINED_DIMENSIONS
&& bufSize
> 0)
1603 _mesa_GetInternalformativ(target
, internalformat
, pname
, callSize
, params32
);
1605 if (pname
== GL_MAX_COMBINED_DIMENSIONS
) {
1606 memcpy(params
, params32
, sizeof(GLint64
));
1608 for (i
= 0; i
< realSize
; i
++) {
1609 /* We only copy back the values that changed */
1610 if (params32
[i
] < 0)
1612 params
[i
] = (GLint64
) params32
[i
];