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 * Note that legality of targets has already been verified.
403 case GL_TEXTURE_1D_ARRAY
:
404 if (!_mesa_has_EXT_texture_array(ctx
))
408 case GL_TEXTURE_2D_ARRAY
:
409 if (!_mesa_has_EXT_texture_array(ctx
))
413 case GL_TEXTURE_CUBE_MAP
:
414 if (ctx
->API
!= API_OPENGL_CORE
&& !_mesa_has_ARB_texture_cube_map(ctx
))
418 case GL_TEXTURE_CUBE_MAP_ARRAY
:
419 if (!_mesa_has_ARB_texture_cube_map_array(ctx
))
423 case GL_TEXTURE_RECTANGLE
:
424 if (!_mesa_has_ARB_texture_rectangle(ctx
))
428 case GL_TEXTURE_BUFFER
:
429 if (!_mesa_has_ARB_texture_buffer_object(ctx
))
433 case GL_RENDERBUFFER
:
434 if (!(_mesa_has_ARB_framebuffer_object(ctx
) ||
435 _mesa_is_gles3(ctx
)))
439 case GL_TEXTURE_2D_MULTISAMPLE
:
440 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
441 if (!(_mesa_has_ARB_texture_multisample(ctx
) ||
442 _mesa_is_gles31(ctx
)))
447 unreachable("invalid target");
454 _is_resource_supported(struct gl_context
*ctx
, GLenum target
,
455 GLenum internalformat
, GLenum pname
)
457 /* From the ARB_internalformat_query2 spec:
459 * In the following descriptions, the term /resource/ is used to generically
460 * refer to an object of the appropriate type that has been created with
461 * <internalformat> and <target>. If the particular <target> and
462 * <internalformat> combination do not make sense, ... the "unsupported"
463 * answer should be given. This is not an error.
466 /* In the ARB_internalformat_query2 spec wording, some <pnames> do not care
467 * about the /resource/ being supported or not, we return 'true' for those.
470 case GL_INTERNALFORMAT_SUPPORTED
:
471 case GL_INTERNALFORMAT_PREFERRED
:
472 case GL_COLOR_COMPONENTS
:
473 case GL_DEPTH_COMPONENTS
:
474 case GL_STENCIL_COMPONENTS
:
475 case GL_COLOR_RENDERABLE
:
476 case GL_DEPTH_RENDERABLE
:
477 case GL_STENCIL_RENDERABLE
:
485 case GL_TEXTURE_1D_ARRAY
:
487 case GL_TEXTURE_2D_ARRAY
:
489 case GL_TEXTURE_CUBE_MAP
:
490 case GL_TEXTURE_CUBE_MAP_ARRAY
:
491 case GL_TEXTURE_RECTANGLE
:
492 /* Based on what Mesa does for glTexImage1D/2D/3D and
493 * glCompressedTexImage1D/2D/3D functions.
495 if (_mesa_base_tex_format(ctx
, internalformat
) < 0)
498 /* additional checks for depth textures */
499 if (!_mesa_legal_texture_base_format_for_target(ctx
, target
, internalformat
))
502 /* additional checks for compressed textures */
503 if (_mesa_is_compressed_format(ctx
, internalformat
) &&
504 !_mesa_target_can_be_compressed(ctx
, target
, internalformat
, NULL
))
508 case GL_TEXTURE_2D_MULTISAMPLE
:
509 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
510 /* Based on what Mesa does for glTexImage2D/3DMultisample,
511 * glTexStorage2D/3DMultisample and
512 * glTextureStorage2D/3DMultisample functions.
514 if (!_mesa_is_renderable_texture_format(ctx
, internalformat
))
518 case GL_TEXTURE_BUFFER
:
519 /* Based on what Mesa does for the glTexBuffer function. */
520 if (_mesa_validate_texbuffer_format(ctx
, internalformat
) ==
525 case GL_RENDERBUFFER
:
526 /* Based on what Mesa does for glRenderbufferStorage(Multisample) and
527 * glNamedRenderbufferStorage functions.
529 if (!_mesa_base_fbo_format(ctx
, internalformat
))
534 unreachable("bad target");
541 _is_internalformat_supported(struct gl_context
*ctx
, GLenum target
,
542 GLenum internalformat
)
544 /* From the ARB_internalformat_query2 specification:
546 * "- INTERNALFORMAT_SUPPORTED: If <internalformat> is an internal format
547 * that is supported by the implementation in at least some subset of
548 * possible operations, TRUE is written to <params>. If <internalformat>
549 * if not a valid token for any internal format usage, FALSE is returned.
551 * <internalformats> that must be supported (in GL 4.2 or later) include
553 * - "sized internal formats" from Table 3.12, 3.13, and 3.15,
554 * - any specific "compressed internal format" from Table 3.14,
555 * - any "image unit format" from Table 3.21.
556 * - any generic "compressed internal format" from Table 3.14, if the
557 * implementation accepts it for any texture specification commands, and
558 * - unsized or base internal format, if the implementation accepts
559 * it for texture or image specification.
562 * "If the particualar <target> and <internalformat> combination do not make
563 * sense, or if a particular type of <target> is not supported by the
564 * implementation the "unsupported" answer should be given. This is not an
569 if (target
== GL_RENDERBUFFER
) {
570 if (_mesa_base_fbo_format(ctx
, internalformat
) == 0) {
573 } else if (target
== GL_TEXTURE_BUFFER
) {
574 if (_mesa_validate_texbuffer_format(ctx
, internalformat
) ==
579 if (_mesa_base_tex_format(ctx
, internalformat
) < 0) {
584 /* Let the driver have the final word */
585 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
,
586 GL_INTERNALFORMAT_SUPPORTED
, buffer
);
588 return (buffer
[0] == GL_TRUE
);
592 _legal_target_for_framebuffer_texture_layer(struct gl_context
*ctx
,
597 case GL_TEXTURE_1D_ARRAY
:
598 case GL_TEXTURE_2D_ARRAY
:
599 case GL_TEXTURE_CUBE_MAP_ARRAY
:
600 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
601 case GL_TEXTURE_CUBE_MAP
:
609 _mesa_generic_type_for_internal_format(GLenum internalFormat
)
611 if (_mesa_is_enum_format_unsigned_int(internalFormat
))
612 return GL_UNSIGNED_BYTE
;
613 else if (_mesa_is_enum_format_signed_int(internalFormat
))
619 /* default implementation of QueryInternalFormat driverfunc, for
620 * drivers not implementing ARB_internalformat_query2.
623 _mesa_query_internal_format_default(struct gl_context
*ctx
, GLenum target
,
624 GLenum internalFormat
, GLenum pname
,
631 case GL_NUM_SAMPLE_COUNTS
:
635 case GL_INTERNALFORMAT_SUPPORTED
:
639 case GL_INTERNALFORMAT_PREFERRED
:
640 params
[0] = internalFormat
;
643 case GL_READ_PIXELS_FORMAT
: {
644 GLenum base_format
= _mesa_base_tex_format(ctx
, internalFormat
);
645 switch (base_format
) {
646 case GL_STENCIL_INDEX
:
647 case GL_DEPTH_COMPONENT
:
648 case GL_DEPTH_STENCIL
:
654 params
[0] = base_format
;
663 case GL_READ_PIXELS_TYPE
:
664 case GL_TEXTURE_IMAGE_TYPE
:
665 case GL_GET_TEXTURE_IMAGE_TYPE
: {
666 GLenum base_format
= _mesa_base_tex_format(ctx
, internalFormat
);
668 params
[0] = _mesa_generic_type_for_internal_format(internalFormat
);
674 case GL_TEXTURE_IMAGE_FORMAT
:
675 case GL_GET_TEXTURE_IMAGE_FORMAT
: {
676 GLenum format
= GL_NONE
;
677 GLenum base_format
= _mesa_base_tex_format(ctx
, internalFormat
);
678 if (base_format
> 0) {
679 if (_mesa_is_enum_format_integer(internalFormat
))
680 format
= _mesa_base_format_to_integer_format(base_format
);
682 format
= base_format
;
689 case GL_MANUAL_GENERATE_MIPMAP
:
690 case GL_AUTO_GENERATE_MIPMAP
:
693 case GL_SRGB_DECODE_ARB
:
694 case GL_VERTEX_TEXTURE
:
695 case GL_TESS_CONTROL_TEXTURE
:
696 case GL_TESS_EVALUATION_TEXTURE
:
697 case GL_GEOMETRY_TEXTURE
:
698 case GL_FRAGMENT_TEXTURE
:
699 case GL_COMPUTE_TEXTURE
:
700 case GL_SHADER_IMAGE_LOAD
:
701 case GL_SHADER_IMAGE_STORE
:
702 case GL_SHADER_IMAGE_ATOMIC
:
703 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST
:
704 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST
:
705 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE
:
706 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE
:
707 case GL_CLEAR_BUFFER
:
708 case GL_TEXTURE_VIEW
:
709 case GL_TEXTURE_SHADOW
:
710 case GL_TEXTURE_GATHER
:
711 case GL_TEXTURE_GATHER_SHADOW
:
712 case GL_FRAMEBUFFER_RENDERABLE
:
713 case GL_FRAMEBUFFER_RENDERABLE_LAYERED
:
714 case GL_FRAMEBUFFER_BLEND
:
717 * TODO seems a tad optimistic just saying yes to everything here.
718 * Even for combinations which make no sense...
719 * And things like TESS_CONTROL_TEXTURE should definitely default to
720 * NONE if the driver doesn't even support tessellation...
722 params
[0] = GL_FULL_SUPPORT
;
724 case GL_NUM_TILING_TYPES_EXT
:
727 case GL_TILING_TYPES_EXT
:
728 params
[0] = GL_OPTIMAL_TILING_EXT
;
729 params
[1] = GL_LINEAR_TILING_EXT
;
733 _set_default_response(pname
, params
);
739 * For MAX_WIDTH/MAX_HEIGHT/MAX_DEPTH it returns the equivalent GetInteger
740 * pname for a Getinternalformat pname/target combination. target/pname
741 * combinations that would return 0 due dimension number or unsupported status
742 * should be already filtered out
744 * Note that this means that the returned value would be independent of the
745 * internalformat. This possibility is already mentioned at the Issue 7 of the
746 * arb_internalformat_query2 spec.
749 _equivalent_size_pname(GLenum target
,
755 case GL_TEXTURE_2D_MULTISAMPLE
:
756 return GL_MAX_TEXTURE_SIZE
;
758 return GL_MAX_3D_TEXTURE_SIZE
;
759 case GL_TEXTURE_CUBE_MAP
:
760 return GL_MAX_CUBE_MAP_TEXTURE_SIZE
;
761 case GL_TEXTURE_RECTANGLE
:
762 return GL_MAX_RECTANGLE_TEXTURE_SIZE
;
763 case GL_RENDERBUFFER
:
764 return GL_MAX_RENDERBUFFER_SIZE
;
765 case GL_TEXTURE_1D_ARRAY
:
766 if (pname
== GL_MAX_HEIGHT
)
767 return GL_MAX_ARRAY_TEXTURE_LAYERS
;
769 return GL_MAX_TEXTURE_SIZE
;
770 case GL_TEXTURE_2D_ARRAY
:
771 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
772 if (pname
== GL_MAX_DEPTH
)
773 return GL_MAX_ARRAY_TEXTURE_LAYERS
;
775 return GL_MAX_TEXTURE_SIZE
;
776 case GL_TEXTURE_CUBE_MAP_ARRAY
:
777 if (pname
== GL_MAX_DEPTH
)
778 return GL_MAX_ARRAY_TEXTURE_LAYERS
;
780 return GL_MAX_CUBE_MAP_TEXTURE_SIZE
;
781 case GL_TEXTURE_BUFFER
:
782 return GL_MAX_TEXTURE_BUFFER_SIZE
;
789 * Returns the dimensions associated to a target. GL_TEXTURE_BUFFER and
790 * GL_RENDERBUFFER have associated a dimension, but they are not textures
791 * per-se, so we can't just call _mesa_get_texture_dimension directly.
794 _get_target_dimensions(GLenum target
)
797 case GL_TEXTURE_BUFFER
:
799 case GL_RENDERBUFFER
:
802 return _mesa_get_texture_dimensions(target
);
807 * Returns the minimum amount of dimensions associated to a pname. So for
808 * example, if querying GL_MAX_HEIGHT, it is assumed that your target would
809 * have as minimum 2 dimensions.
811 * Useful to handle sentences like this from query2 spec:
815 * If the resource does not have at least two dimensions
819 _get_min_dimensions(GLenum pname
)
834 * Similar to teximage.c:check_multisample_target, but independent of the
838 _is_multisample_target(GLenum target
)
841 case GL_TEXTURE_2D_MULTISAMPLE
:
842 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
851 _mesa_GetInternalformativ(GLenum target
, GLenum internalformat
, GLenum pname
,
852 GLsizei bufSize
, GLint
*params
)
855 GET_CURRENT_CONTEXT(ctx
);
857 ASSERT_OUTSIDE_BEGIN_END(ctx
);
859 /* ARB_internalformat_query is also mandatory for ARB_internalformat_query2 */
860 if (!(_mesa_has_ARB_internalformat_query(ctx
) ||
861 _mesa_is_gles3(ctx
))) {
862 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetInternalformativ");
866 assert(ctx
->Driver
.QueryInternalFormat
!= NULL
);
868 if (!_legal_parameters(ctx
, target
, internalformat
, pname
, bufSize
, params
))
871 /* initialize the contents of the temporary buffer */
872 memcpy(buffer
, params
, MIN2(bufSize
, 16) * sizeof(GLint
));
874 /* Use the 'unsupported' response defined by the spec for every pname
875 * as the default answer.
877 _set_default_response(pname
, buffer
);
879 if (!_is_target_supported(ctx
, target
) ||
880 !_is_internalformat_supported(ctx
, target
, internalformat
) ||
881 !_is_resource_supported(ctx
, target
, internalformat
, pname
))
887 case GL_NUM_SAMPLE_COUNTS
:
888 /* The ARB_internalformat_query2 sets the response as 'unsupported' for
889 * SAMPLES and NUM_SAMPLE_COUNTS:
891 * "If <internalformat> is not color-renderable, depth-renderable, or
892 * stencil-renderable (as defined in section 4.4.4), or if <target>
893 * does not support multiple samples (ie other than
894 * TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY,
897 if ((target
!= GL_RENDERBUFFER
&&
898 target
!= GL_TEXTURE_2D_MULTISAMPLE
&&
899 target
!= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
) ||
900 !_is_renderable(ctx
, internalformat
))
903 /* The GL ES 3.0 specification, section 6.1.15 page 236 says:
905 * "Since multisampling is not supported for signed and unsigned
906 * integer internal formats, the value of NUM_SAMPLE_COUNTS will be
907 * zero for such formats.
909 * Since OpenGL ES 3.1 adds support for multisampled integer formats, we
910 * have to check the version for 30 exactly.
912 if (pname
== GL_NUM_SAMPLE_COUNTS
&& ctx
->API
== API_OPENGLES2
&&
913 ctx
->Version
== 30 && _mesa_is_enum_format_integer(internalformat
)) {
917 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
921 case GL_INTERNALFORMAT_SUPPORTED
:
922 /* Having a supported <internalformat> is implemented as a prerequisite
923 * for all the <pnames>. Thus, if we reach this point, the internalformat is
929 case GL_INTERNALFORMAT_PREFERRED
:
930 /* The ARB_internalformat_query2 spec says:
932 * "- INTERNALFORMAT_PREFERRED: The implementation-preferred internal
933 * format for representing resources of the specified <internalformat> is
934 * returned in <params>.
936 * Therefore, we let the driver answer. Note that if we reach this
937 * point, it means that the internalformat is supported, so the driver
938 * is called just to try to get a preferred format. If not supported,
939 * GL_NONE was already returned and the driver is not called.
941 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
945 case GL_INTERNALFORMAT_RED_SIZE
:
946 case GL_INTERNALFORMAT_GREEN_SIZE
:
947 case GL_INTERNALFORMAT_BLUE_SIZE
:
948 case GL_INTERNALFORMAT_ALPHA_SIZE
:
949 case GL_INTERNALFORMAT_DEPTH_SIZE
:
950 case GL_INTERNALFORMAT_STENCIL_SIZE
:
951 case GL_INTERNALFORMAT_SHARED_SIZE
:
952 case GL_INTERNALFORMAT_RED_TYPE
:
953 case GL_INTERNALFORMAT_GREEN_TYPE
:
954 case GL_INTERNALFORMAT_BLUE_TYPE
:
955 case GL_INTERNALFORMAT_ALPHA_TYPE
:
956 case GL_INTERNALFORMAT_DEPTH_TYPE
:
957 case GL_INTERNALFORMAT_STENCIL_TYPE
: {
959 mesa_format texformat
;
961 if (target
!= GL_RENDERBUFFER
) {
962 baseformat
= _mesa_base_tex_format(ctx
, internalformat
);
964 baseformat
= _mesa_base_fbo_format(ctx
, internalformat
);
967 /* Let the driver choose the texture format.
969 * Disclaimer: I am considering that drivers use for renderbuffers the
970 * same format-choice logic as for textures.
972 texformat
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
, internalformat
,
973 GL_NONE
/*format */, GL_NONE
/* type */);
975 if (texformat
== MESA_FORMAT_NONE
|| baseformat
<= 0)
978 /* Implementation based on what Mesa does for glGetTexLevelParameteriv
979 * and glGetRenderbufferParameteriv functions.
981 if (pname
== GL_INTERNALFORMAT_SHARED_SIZE
) {
982 if (texformat
== MESA_FORMAT_R9G9B9E5_FLOAT
) {
988 if (!_mesa_base_format_has_channel(baseformat
, pname
))
992 case GL_INTERNALFORMAT_DEPTH_SIZE
:
993 if (ctx
->API
!= API_OPENGL_CORE
&&
994 !_mesa_has_ARB_depth_texture(ctx
) &&
995 target
!= GL_RENDERBUFFER
&&
996 target
!= GL_TEXTURE_BUFFER
)
999 case GL_INTERNALFORMAT_RED_SIZE
:
1000 case GL_INTERNALFORMAT_GREEN_SIZE
:
1001 case GL_INTERNALFORMAT_BLUE_SIZE
:
1002 case GL_INTERNALFORMAT_ALPHA_SIZE
:
1003 case GL_INTERNALFORMAT_STENCIL_SIZE
:
1004 buffer
[0] = _mesa_get_format_bits(texformat
, pname
);
1007 case GL_INTERNALFORMAT_DEPTH_TYPE
:
1008 if (!_mesa_has_ARB_texture_float(ctx
))
1011 case GL_INTERNALFORMAT_RED_TYPE
:
1012 case GL_INTERNALFORMAT_GREEN_TYPE
:
1013 case GL_INTERNALFORMAT_BLUE_TYPE
:
1014 case GL_INTERNALFORMAT_ALPHA_TYPE
:
1015 case GL_INTERNALFORMAT_STENCIL_TYPE
:
1016 buffer
[0] = _mesa_get_format_datatype(texformat
);
1026 /* For WIDTH/HEIGHT/DEPTH/LAYERS there is no reason to think that the
1027 * returned values should be different to the values returned by
1028 * GetInteger with MAX_TEXTURE_SIZE, MAX_3D_TEXTURE_SIZE, etc.*/
1031 case GL_MAX_DEPTH
: {
1034 GLint min_dimensions
;
1036 /* From query2:MAX_HEIGHT spec (as example):
1038 * "If the resource does not have at least two dimensions, or if the
1039 * resource is unsupported, zero is returned."
1041 dimensions
= _get_target_dimensions(target
);
1042 min_dimensions
= _get_min_dimensions(pname
);
1043 if (dimensions
< min_dimensions
)
1046 get_pname
= _equivalent_size_pname(target
, pname
);
1050 _mesa_GetIntegerv(get_pname
, buffer
);
1055 if (!_mesa_has_EXT_texture_array(ctx
))
1058 if (!_mesa_is_array_texture(target
))
1061 _mesa_GetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS
, buffer
);
1064 case GL_MAX_COMBINED_DIMENSIONS
:{
1065 GLint64 combined_value
= 1;
1066 GLenum max_dimensions_pnames
[] = {
1073 GLint current_value
;
1075 /* Combining the dimensions. Note that for array targets, this would
1076 * automatically include the value of MAX_LAYERS, as that value is
1077 * returned as MAX_HEIGHT or MAX_DEPTH */
1078 for (i
= 0; i
< 4; i
++) {
1079 if (max_dimensions_pnames
[i
] == GL_SAMPLES
&&
1080 !_is_multisample_target(target
))
1083 _mesa_GetInternalformativ(target
, internalformat
,
1084 max_dimensions_pnames
[i
],
1087 if (current_value
!= 0)
1088 combined_value
*= current_value
;
1091 if (_mesa_is_cube_map_texture(target
))
1092 combined_value
*= 6;
1094 /* We pack the 64-bit value on two 32-bit values. Calling the 32-bit
1095 * query, this would work as far as the value can be hold on a 32-bit
1096 * signed integer. For the 64-bit query, the wrapper around the 32-bit
1097 * query will unpack the value */
1098 memcpy(buffer
, &combined_value
, sizeof(GLint64
));
1102 case GL_COLOR_COMPONENTS
:
1103 /* The ARB_internalformat_query2 spec says:
1105 * "- COLOR_COMPONENTS: If the internal format contains any color
1106 * components (R, G, B, or A), TRUE is returned in <params>.
1107 * If the internal format is unsupported or contains no color
1108 * components, FALSE is returned."
1110 if (_mesa_is_color_format(internalformat
))
1111 buffer
[0] = GL_TRUE
;
1114 case GL_DEPTH_COMPONENTS
:
1115 /* The ARB_internalformat_query2 spec says:
1117 * "- DEPTH_COMPONENTS: If the internal format contains a depth
1118 * component (D), TRUE is returned in <params>. If the internal format
1119 * is unsupported or contains no depth component, FALSE is returned."
1121 if (_mesa_is_depth_format(internalformat
) ||
1122 _mesa_is_depthstencil_format(internalformat
))
1123 buffer
[0] = GL_TRUE
;
1126 case GL_STENCIL_COMPONENTS
:
1127 /* The ARB_internalformat_query2 spec says:
1129 * "- STENCIL_COMPONENTS: If the internal format contains a stencil
1130 * component (S), TRUE is returned in <params>. If the internal format
1131 * is unsupported or contains no stencil component, FALSE is returned.
1133 if (_mesa_is_stencil_format(internalformat
) ||
1134 _mesa_is_depthstencil_format(internalformat
))
1135 buffer
[0] = GL_TRUE
;
1138 case GL_COLOR_RENDERABLE
:
1139 case GL_DEPTH_RENDERABLE
:
1140 case GL_STENCIL_RENDERABLE
:
1141 if (!_is_renderable(ctx
, internalformat
))
1144 if (pname
== GL_COLOR_RENDERABLE
) {
1145 if (!_mesa_is_color_format(internalformat
))
1148 GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalformat
);
1149 if (baseFormat
!= GL_DEPTH_STENCIL
&&
1150 ((pname
== GL_DEPTH_RENDERABLE
&& baseFormat
!= GL_DEPTH_COMPONENT
) ||
1151 (pname
== GL_STENCIL_RENDERABLE
&& baseFormat
!= GL_STENCIL_INDEX
)))
1155 buffer
[0] = GL_TRUE
;
1158 case GL_FRAMEBUFFER_RENDERABLE_LAYERED
:
1159 if (!_mesa_has_EXT_texture_array(ctx
) ||
1160 _legal_target_for_framebuffer_texture_layer(ctx
, target
))
1163 case GL_FRAMEBUFFER_RENDERABLE
:
1164 case GL_FRAMEBUFFER_BLEND
:
1165 if (!_mesa_has_ARB_framebuffer_object(ctx
))
1168 if (target
== GL_TEXTURE_BUFFER
||
1169 !_is_renderable(ctx
, internalformat
))
1172 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1176 case GL_READ_PIXELS
:
1177 case GL_READ_PIXELS_FORMAT
:
1178 case GL_READ_PIXELS_TYPE
:
1179 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1183 case GL_TEXTURE_IMAGE_FORMAT
:
1184 case GL_GET_TEXTURE_IMAGE_FORMAT
:
1185 case GL_TEXTURE_IMAGE_TYPE
:
1186 case GL_GET_TEXTURE_IMAGE_TYPE
:
1187 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1192 case GL_MANUAL_GENERATE_MIPMAP
:
1193 case GL_AUTO_GENERATE_MIPMAP
:
1194 if (!_mesa_is_valid_generate_texture_mipmap_target(ctx
, target
) ||
1195 !_mesa_is_valid_generate_texture_mipmap_internalformat(ctx
,
1200 if (pname
== GL_MIPMAP
) {
1201 buffer
[0] = GL_TRUE
;
1204 else if (pname
== GL_MANUAL_GENERATE_MIPMAP
) {
1205 if (!_mesa_has_ARB_framebuffer_object(ctx
))
1209 /* From ARB_internalformat_query2:
1210 * "Dependencies on OpenGL 3.2 (Core Profile)
1211 * In core profiles for OpenGL 3.2 and later versions, queries
1212 * for the AUTO_GENERATE_MIPMAP <pname> return the appropriate
1213 * unsupported response."
1215 if (_mesa_is_desktop_gl(ctx
) && ctx
->Version
>= 32)
1219 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1223 case GL_COLOR_ENCODING
:
1224 if (!_mesa_is_color_format(internalformat
))
1227 if (_mesa_is_srgb_format(internalformat
))
1228 buffer
[0] = GL_SRGB
;
1230 buffer
[0] = GL_LINEAR
;
1234 if (!_mesa_has_EXT_texture_sRGB(ctx
) ||
1235 !_mesa_is_srgb_format(internalformat
)) {
1239 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1244 if (!ctx
->Extensions
.EXT_sRGB
||
1245 !_mesa_is_color_format(internalformat
)) {
1249 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1253 case GL_SRGB_DECODE_ARB
:
1254 /* Presence of EXT_texture_sRGB_decode was already verified */
1255 if (!_mesa_has_EXT_texture_sRGB(ctx
) ||
1256 target
== GL_RENDERBUFFER
||
1257 !_mesa_is_srgb_format(internalformat
)) {
1261 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1266 /* If it doesn't allow to set sampler parameters then it would not allow
1267 * to set a filter different to GL_NEAREST. In practice, this method
1268 * only filters out MULTISAMPLE/MULTISAMPLE_ARRAY */
1269 if (!_mesa_target_allows_setting_sampler_parameters(target
))
1272 if (_mesa_is_enum_format_integer(internalformat
))
1275 if (target
== GL_TEXTURE_BUFFER
)
1278 /* At this point we know that multi-texel filtering is supported. We
1279 * need to call the driver to know if it is CAVEAT_SUPPORT or
1282 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1286 case GL_VERTEX_TEXTURE
:
1287 case GL_TESS_CONTROL_TEXTURE
:
1288 case GL_TESS_EVALUATION_TEXTURE
:
1289 case GL_GEOMETRY_TEXTURE
:
1290 case GL_FRAGMENT_TEXTURE
:
1291 case GL_COMPUTE_TEXTURE
:
1292 if (target
== GL_RENDERBUFFER
)
1295 if ((pname
== GL_TESS_CONTROL_TEXTURE
||
1296 pname
== GL_TESS_EVALUATION_TEXTURE
) &&
1297 !_mesa_has_tessellation(ctx
))
1300 if (pname
== GL_GEOMETRY_TEXTURE
&& !_mesa_has_geometry_shaders(ctx
))
1303 if (pname
== GL_COMPUTE_TEXTURE
&& !_mesa_has_compute_shaders(ctx
))
1306 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1310 case GL_TEXTURE_GATHER
:
1311 case GL_TEXTURE_GATHER_SHADOW
:
1312 if (!_mesa_has_ARB_texture_gather(ctx
))
1316 case GL_TEXTURE_SHADOW
:
1317 /* Only depth or depth-stencil image formats make sense in shadow
1319 if (pname
!= GL_TEXTURE_GATHER
&&
1320 !_mesa_is_depth_format(internalformat
) &&
1321 !_mesa_is_depthstencil_format(internalformat
))
1324 /* Validate the target for shadow and gather operations */
1327 case GL_TEXTURE_2D_ARRAY
:
1328 case GL_TEXTURE_CUBE_MAP
:
1329 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1330 case GL_TEXTURE_RECTANGLE
:
1334 case GL_TEXTURE_1D_ARRAY
:
1335 /* 1D and 1DArray textures are not admitted in gather operations */
1336 if (pname
!= GL_TEXTURE_SHADOW
)
1344 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1348 case GL_SHADER_IMAGE_LOAD
:
1349 case GL_SHADER_IMAGE_STORE
:
1350 if (!_mesa_has_ARB_shader_image_load_store(ctx
))
1353 /* We call to _mesa_is_shader_image_format_supported
1354 * using "internalformat" as parameter, because the
1355 * the ARB_internalformat_query2 spec says:
1356 * "In this case the <internalformat> is the value of the <format>
1357 * parameter that is passed to BindImageTexture."
1359 if (target
== GL_RENDERBUFFER
||
1360 !_mesa_is_shader_image_format_supported(ctx
, internalformat
))
1363 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1367 case GL_SHADER_IMAGE_ATOMIC
:
1368 if (!_mesa_has_ARB_shader_image_load_store(ctx
))
1371 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1375 case GL_IMAGE_TEXEL_SIZE
: {
1376 mesa_format image_format
;
1378 if (!_mesa_has_ARB_shader_image_load_store(ctx
) ||
1379 target
== GL_RENDERBUFFER
)
1382 image_format
= _mesa_get_shader_image_format(internalformat
);
1383 if (image_format
== MESA_FORMAT_NONE
)
1386 /* We return bits */
1387 buffer
[0] = (_mesa_get_format_bytes(image_format
) * 8);
1391 case GL_IMAGE_COMPATIBILITY_CLASS
:
1392 if (!_mesa_has_ARB_shader_image_load_store(ctx
) ||
1393 target
== GL_RENDERBUFFER
)
1396 buffer
[0] = _mesa_get_image_format_class(internalformat
);
1399 case GL_IMAGE_PIXEL_FORMAT
: {
1402 if (!_mesa_has_ARB_shader_image_load_store(ctx
) ||
1403 target
== GL_RENDERBUFFER
||
1404 !_mesa_is_shader_image_format_supported(ctx
, internalformat
))
1407 base_format
= _mesa_base_tex_format(ctx
, internalformat
);
1408 if (base_format
== -1)
1411 if (_mesa_is_enum_format_integer(internalformat
))
1412 buffer
[0] = _mesa_base_format_to_integer_format(base_format
);
1414 buffer
[0] = base_format
;
1418 case GL_IMAGE_PIXEL_TYPE
: {
1419 mesa_format image_format
;
1423 if (!_mesa_has_ARB_shader_image_load_store(ctx
) ||
1424 target
== GL_RENDERBUFFER
)
1427 image_format
= _mesa_get_shader_image_format(internalformat
);
1428 if (image_format
== MESA_FORMAT_NONE
)
1431 _mesa_uncompressed_format_to_type_and_comps(image_format
, &datatype
,
1436 buffer
[0] = datatype
;
1440 case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
: {
1441 if (!_mesa_has_ARB_shader_image_load_store(ctx
))
1444 /* As pointed by the spec quote below, this pname query should return
1445 * the same value that GetTexParameter. So if the target is not valid
1446 * for GetTexParameter we return the unsupported value. The check below
1447 * is the same target check used by GetTexParameter.
1449 int targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1450 if (targetIndex
< 0 || targetIndex
== TEXTURE_BUFFER_INDEX
)
1453 /* From spec: "Equivalent to calling GetTexParameter with <value> set
1454 * to IMAGE_FORMAT_COMPATIBILITY_TYPE."
1456 * GetTexParameter just returns
1457 * tex_obj->ImageFormatCompatibilityType. We create a fake tex_obj
1458 * just with the purpose of getting the value.
1460 struct gl_texture_object
*tex_obj
= _mesa_new_texture_object(ctx
, 0, target
);
1461 buffer
[0] = tex_obj
->ImageFormatCompatibilityType
;
1462 _mesa_delete_texture_object(ctx
, tex_obj
);
1467 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST
:
1468 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST
:
1469 case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE
:
1470 case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE
:
1471 if (target
== GL_RENDERBUFFER
)
1474 if (!_mesa_is_depthstencil_format(internalformat
)) {
1475 if (((pname
== GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST
||
1476 pname
== GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE
) &&
1477 !_mesa_is_depth_format(internalformat
)) ||
1478 ((pname
== GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST
||
1479 pname
== GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE
) &&
1480 !_mesa_is_stencil_format(internalformat
)))
1484 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1488 case GL_TEXTURE_COMPRESSED
:
1489 buffer
[0] = _mesa_is_compressed_format(ctx
, internalformat
);
1492 case GL_TEXTURE_COMPRESSED_BLOCK_WIDTH
:
1493 case GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT
:
1494 case GL_TEXTURE_COMPRESSED_BLOCK_SIZE
: {
1495 mesa_format mesaformat
;
1498 mesaformat
= _mesa_glenum_to_compressed_format(internalformat
);
1499 if (mesaformat
== MESA_FORMAT_NONE
)
1502 block_size
= _mesa_get_format_bytes(mesaformat
);
1503 assert(block_size
> 0);
1505 if (pname
== GL_TEXTURE_COMPRESSED_BLOCK_SIZE
) {
1506 buffer
[0] = block_size
;
1508 GLuint bwidth
, bheight
;
1510 /* Returns the width and height in pixels. We return bytes */
1511 _mesa_get_format_block_size(mesaformat
, &bwidth
, &bheight
);
1512 assert(bwidth
> 0 && bheight
> 0);
1514 if (pname
== GL_TEXTURE_COMPRESSED_BLOCK_WIDTH
)
1515 buffer
[0] = block_size
/ bheight
;
1517 buffer
[0] = block_size
/ bwidth
;
1522 case GL_CLEAR_BUFFER
:
1523 if (target
!= GL_TEXTURE_BUFFER
)
1526 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1530 case GL_TEXTURE_VIEW
:
1531 case GL_VIEW_COMPATIBILITY_CLASS
:
1532 if (!_mesa_has_ARB_texture_view(ctx
) ||
1533 target
== GL_TEXTURE_BUFFER
||
1534 target
== GL_RENDERBUFFER
)
1537 if (pname
== GL_TEXTURE_VIEW
) {
1538 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1541 GLenum view_class
= _mesa_texture_view_lookup_view_class(ctx
,
1543 if (view_class
== GL_FALSE
)
1546 buffer
[0] = view_class
;
1550 case GL_NUM_TILING_TYPES_EXT
:
1551 case GL_TILING_TYPES_EXT
:
1552 ctx
->Driver
.QueryInternalFormat(ctx
, target
, internalformat
, pname
,
1557 unreachable("bad param");
1561 if (bufSize
!= 0 && params
== NULL
) {
1562 /* Emit a warning to aid application debugging, but go ahead and do the
1563 * memcpy (and probably crash) anyway.
1566 "glGetInternalformativ(bufSize = %d, but params = NULL)",
1570 /* Copy the data from the temporary buffer to the buffer supplied by the
1571 * application. Clamp the size of the copy to the size supplied by the
1574 memcpy(params
, buffer
, MIN2(bufSize
, 16) * sizeof(GLint
));
1580 _mesa_GetInternalformati64v(GLenum target
, GLenum internalformat
,
1581 GLenum pname
, GLsizei bufSize
, GLint64
*params
)
1585 GLsizei realSize
= MIN2(bufSize
, 16);
1588 GET_CURRENT_CONTEXT(ctx
);
1590 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1592 if (!_mesa_has_ARB_internalformat_query2(ctx
)) {
1593 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetInternalformati64v");
1597 /* For SAMPLES there are cases where params needs to remain unmodified. As
1598 * no pname can return a negative value, we fill params32 with negative
1599 * values as reference values, that can be used to know what copy-back to
1601 for (i
= 0; i
< realSize
; i
++)
1604 /* For GL_MAX_COMBINED_DIMENSIONS we need to get back 2 32-bit integers,
1605 * and at the same time we only need 2. So for that pname, we call the
1606 * 32-bit query with bufSize 2, except on the case of bufSize 0, that is
1607 * basically like asking to not get the value, but that is a caller
1609 if (pname
== GL_MAX_COMBINED_DIMENSIONS
&& bufSize
> 0)
1614 _mesa_GetInternalformativ(target
, internalformat
, pname
, callSize
, params32
);
1616 if (pname
== GL_MAX_COMBINED_DIMENSIONS
) {
1617 memcpy(params
, params32
, sizeof(GLint64
));
1619 for (i
= 0; i
< realSize
; i
++) {
1620 /* We only copy back the values that changed */
1621 if (params32
[i
] < 0)
1623 params
[i
] = (GLint64
) params32
[i
];