2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
29 * Texture image-related functions.
34 #include "bufferobj.h"
38 #include "framebuffer.h"
43 #include "multisample.h"
45 #include "texcompress.h"
46 #include "texcompress_cpal.h"
50 #include "texstorage.h"
52 #include "glformats.h"
56 * State changes which we care about for glCopyTex[Sub]Image() calls.
57 * In particular, we care about pixel transfer state and buffer state
58 * (such as glReadBuffer to make sure we read from the right renderbuffer).
60 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
65 * Return the simple base format for a given internal texture format.
66 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
68 * \param ctx GL context.
69 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
71 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
72 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
74 * This is the format which is used during texture application (i.e. the
75 * texture format and env mode determine the arithmetic used.
78 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
)
80 switch (internalFormat
) {
86 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_ALPHA
: -1;
93 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE
: -1;
95 case GL_LUMINANCE_ALPHA
:
96 case GL_LUMINANCE4_ALPHA4
:
97 case GL_LUMINANCE6_ALPHA2
:
98 case GL_LUMINANCE8_ALPHA8
:
99 case GL_LUMINANCE12_ALPHA4
:
100 case GL_LUMINANCE12_ALPHA12
:
101 case GL_LUMINANCE16_ALPHA16
:
102 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE_ALPHA
: -1;
108 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_INTENSITY
: -1;
110 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGB
: -1;
121 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGBA
: -1;
135 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
137 if (_mesa_is_gles(ctx
)) {
138 switch (internalFormat
) {
146 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
147 switch (internalFormat
) {
155 if (ctx
->Extensions
.ARB_depth_texture
) {
156 switch (internalFormat
) {
157 case GL_DEPTH_COMPONENT
:
158 case GL_DEPTH_COMPONENT16
:
159 case GL_DEPTH_COMPONENT24
:
160 case GL_DEPTH_COMPONENT32
:
161 return GL_DEPTH_COMPONENT
;
167 switch (internalFormat
) {
168 case GL_COMPRESSED_ALPHA
:
170 case GL_COMPRESSED_LUMINANCE
:
172 case GL_COMPRESSED_LUMINANCE_ALPHA
:
173 return GL_LUMINANCE_ALPHA
;
174 case GL_COMPRESSED_INTENSITY
:
176 case GL_COMPRESSED_RGB
:
178 case GL_COMPRESSED_RGBA
:
184 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
185 switch (internalFormat
) {
186 case GL_COMPRESSED_RGB_FXT1_3DFX
:
188 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
195 /* Assume that the ANGLE flag will always be set if the EXT flag is set.
197 if (ctx
->Extensions
.ANGLE_texture_compression_dxt
) {
198 switch (internalFormat
) {
199 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
201 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
202 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
203 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
210 if (_mesa_is_desktop_gl(ctx
)
211 && ctx
->Extensions
.ANGLE_texture_compression_dxt
) {
212 switch (internalFormat
) {
224 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
225 if (internalFormat
== GL_YCBCR_MESA
)
226 return GL_YCBCR_MESA
;
229 if (ctx
->Extensions
.ARB_texture_float
) {
230 switch (internalFormat
) {
231 case GL_ALPHA16F_ARB
:
232 case GL_ALPHA32F_ARB
:
240 case GL_INTENSITY16F_ARB
:
241 case GL_INTENSITY32F_ARB
:
243 case GL_LUMINANCE16F_ARB
:
244 case GL_LUMINANCE32F_ARB
:
246 case GL_LUMINANCE_ALPHA16F_ARB
:
247 case GL_LUMINANCE_ALPHA32F_ARB
:
248 return GL_LUMINANCE_ALPHA
;
254 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
255 switch (internalFormat
) {
264 if (ctx
->Extensions
.EXT_texture_snorm
) {
265 switch (internalFormat
) {
280 case GL_RGBA16_SNORM
:
283 case GL_ALPHA8_SNORM
:
284 case GL_ALPHA16_SNORM
:
286 case GL_LUMINANCE_SNORM
:
287 case GL_LUMINANCE8_SNORM
:
288 case GL_LUMINANCE16_SNORM
:
290 case GL_LUMINANCE_ALPHA_SNORM
:
291 case GL_LUMINANCE8_ALPHA8_SNORM
:
292 case GL_LUMINANCE16_ALPHA16_SNORM
:
293 return GL_LUMINANCE_ALPHA
;
294 case GL_INTENSITY_SNORM
:
295 case GL_INTENSITY8_SNORM
:
296 case GL_INTENSITY16_SNORM
:
303 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
304 switch (internalFormat
) {
305 case GL_DEPTH_STENCIL_EXT
:
306 case GL_DEPTH24_STENCIL8_EXT
:
307 return GL_DEPTH_STENCIL_EXT
;
313 if (ctx
->Extensions
.EXT_texture_sRGB
) {
314 switch (internalFormat
) {
317 case GL_COMPRESSED_SRGB_EXT
:
319 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
320 return ctx
->Extensions
.EXT_texture_compression_s3tc
? GL_RGB
: -1;
321 case GL_SRGB_ALPHA_EXT
:
322 case GL_SRGB8_ALPHA8_EXT
:
323 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
325 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
326 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
327 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
328 return ctx
->Extensions
.EXT_texture_compression_s3tc
? GL_RGBA
: -1;
329 case GL_SLUMINANCE_ALPHA_EXT
:
330 case GL_SLUMINANCE8_ALPHA8_EXT
:
331 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
332 return GL_LUMINANCE_ALPHA
;
333 case GL_SLUMINANCE_EXT
:
334 case GL_SLUMINANCE8_EXT
:
335 case GL_COMPRESSED_SLUMINANCE_EXT
:
342 if (ctx
->Version
>= 30 ||
343 ctx
->Extensions
.EXT_texture_integer
) {
344 switch (internalFormat
) {
346 case GL_RGBA16UI_EXT
:
347 case GL_RGBA32UI_EXT
:
363 if (ctx
->Extensions
.EXT_texture_integer
) {
364 switch (internalFormat
) {
365 case GL_ALPHA8UI_EXT
:
366 case GL_ALPHA16UI_EXT
:
367 case GL_ALPHA32UI_EXT
:
369 case GL_ALPHA16I_EXT
:
370 case GL_ALPHA32I_EXT
:
372 case GL_INTENSITY8UI_EXT
:
373 case GL_INTENSITY16UI_EXT
:
374 case GL_INTENSITY32UI_EXT
:
375 case GL_INTENSITY8I_EXT
:
376 case GL_INTENSITY16I_EXT
:
377 case GL_INTENSITY32I_EXT
:
379 case GL_LUMINANCE8UI_EXT
:
380 case GL_LUMINANCE16UI_EXT
:
381 case GL_LUMINANCE32UI_EXT
:
382 case GL_LUMINANCE8I_EXT
:
383 case GL_LUMINANCE16I_EXT
:
384 case GL_LUMINANCE32I_EXT
:
386 case GL_LUMINANCE_ALPHA8UI_EXT
:
387 case GL_LUMINANCE_ALPHA16UI_EXT
:
388 case GL_LUMINANCE_ALPHA32UI_EXT
:
389 case GL_LUMINANCE_ALPHA8I_EXT
:
390 case GL_LUMINANCE_ALPHA16I_EXT
:
391 case GL_LUMINANCE_ALPHA32I_EXT
:
392 return GL_LUMINANCE_ALPHA
;
398 if (ctx
->Extensions
.ARB_texture_rg
) {
399 switch (internalFormat
) {
401 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
403 if (!ctx
->Extensions
.ARB_half_float_pixel
)
407 if (!ctx
->Extensions
.ARB_texture_float
)
416 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
422 case GL_COMPRESSED_RED
:
426 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
428 if (!ctx
->Extensions
.ARB_half_float_pixel
)
432 if (!ctx
->Extensions
.ARB_texture_float
)
441 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
447 case GL_COMPRESSED_RG
:
454 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
455 switch (internalFormat
) {
463 if (ctx
->Extensions
.EXT_packed_float
) {
464 switch (internalFormat
) {
465 case GL_R11F_G11F_B10F_EXT
:
472 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
473 switch (internalFormat
) {
474 case GL_DEPTH_COMPONENT32F
:
475 return GL_DEPTH_COMPONENT
;
476 case GL_DEPTH32F_STENCIL8
:
477 return GL_DEPTH_STENCIL
;
483 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
484 switch (internalFormat
) {
485 case GL_COMPRESSED_RED_RGTC1
:
486 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
488 case GL_COMPRESSED_RG_RGTC2
:
489 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
496 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
497 switch (internalFormat
) {
498 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
499 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
501 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
502 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
503 return GL_LUMINANCE_ALPHA
;
509 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
510 switch (internalFormat
) {
511 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
512 return GL_LUMINANCE_ALPHA
;
518 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
519 switch (internalFormat
) {
520 case GL_ETC1_RGB8_OES
:
527 if (_mesa_is_gles3(ctx
) || ctx
->Extensions
.ARB_ES3_compatibility
) {
528 switch (internalFormat
) {
529 case GL_COMPRESSED_RGB8_ETC2
:
530 case GL_COMPRESSED_SRGB8_ETC2
:
532 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
533 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
534 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
535 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
537 case GL_COMPRESSED_R11_EAC
:
538 case GL_COMPRESSED_SIGNED_R11_EAC
:
540 case GL_COMPRESSED_RG11_EAC
:
541 case GL_COMPRESSED_SIGNED_RG11_EAC
:
548 if (ctx
->API
== API_OPENGLES
) {
549 switch (internalFormat
) {
550 case GL_PALETTE4_RGB8_OES
:
551 case GL_PALETTE4_R5_G6_B5_OES
:
552 case GL_PALETTE8_RGB8_OES
:
553 case GL_PALETTE8_R5_G6_B5_OES
:
555 case GL_PALETTE4_RGBA8_OES
:
556 case GL_PALETTE8_RGB5_A1_OES
:
557 case GL_PALETTE4_RGBA4_OES
:
558 case GL_PALETTE4_RGB5_A1_OES
:
559 case GL_PALETTE8_RGBA8_OES
:
560 case GL_PALETTE8_RGBA4_OES
:
567 return -1; /* error */
572 * For cube map faces, return a face index in [0,5].
573 * For other targets return 0;
576 _mesa_tex_target_to_face(GLenum target
)
578 if (_mesa_is_cube_face(target
))
579 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
587 * Install gl_texture_image in a gl_texture_object according to the target
588 * and level parameters.
590 * \param tObj texture object.
591 * \param target texture target.
592 * \param level image level.
593 * \param texImage texture image.
596 set_tex_image(struct gl_texture_object
*tObj
,
597 GLenum target
, GLint level
,
598 struct gl_texture_image
*texImage
)
600 const GLuint face
= _mesa_tex_target_to_face(target
);
604 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
607 tObj
->Image
[face
][level
] = texImage
;
609 /* Set the 'back' pointer */
610 texImage
->TexObject
= tObj
;
611 texImage
->Level
= level
;
612 texImage
->Face
= face
;
617 * Allocate a texture image structure.
619 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
622 * \return a pointer to gl_texture_image struct with all fields initialized to
625 struct gl_texture_image
*
626 _mesa_new_texture_image( struct gl_context
*ctx
)
629 return CALLOC_STRUCT(gl_texture_image
);
634 * Free a gl_texture_image and associated data.
635 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
637 * \param texImage texture image.
639 * Free the texture image structure and the associated image data.
642 _mesa_delete_texture_image(struct gl_context
*ctx
,
643 struct gl_texture_image
*texImage
)
645 /* Free texImage->Data and/or any other driver-specific texture
648 ASSERT(ctx
->Driver
.FreeTextureImageBuffer
);
649 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
655 * Test if a target is a proxy target.
657 * \param target texture target.
659 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
662 _mesa_is_proxy_texture(GLenum target
)
665 static const GLenum targets
[] = {
669 GL_PROXY_TEXTURE_CUBE_MAP
,
670 GL_PROXY_TEXTURE_RECTANGLE
,
671 GL_PROXY_TEXTURE_1D_ARRAY
,
672 GL_PROXY_TEXTURE_2D_ARRAY
,
673 GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
,
674 GL_PROXY_TEXTURE_2D_MULTISAMPLE
,
675 GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
678 * NUM_TEXTURE_TARGETS should match number of terms above, except there's no
679 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
681 STATIC_ASSERT(NUM_TEXTURE_TARGETS
== Elements(targets
) + 2);
683 for (i
= 0; i
< Elements(targets
); ++i
)
684 if (target
== targets
[i
])
691 * Return the proxy target which corresponds to the given texture target
694 _mesa_get_proxy_target(GLenum target
)
698 case GL_PROXY_TEXTURE_1D
:
699 return GL_PROXY_TEXTURE_1D
;
701 case GL_PROXY_TEXTURE_2D
:
702 return GL_PROXY_TEXTURE_2D
;
704 case GL_PROXY_TEXTURE_3D
:
705 return GL_PROXY_TEXTURE_3D
;
706 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
707 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
708 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
709 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
710 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
711 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
712 case GL_TEXTURE_CUBE_MAP_ARB
:
713 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
714 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
715 case GL_TEXTURE_RECTANGLE_NV
:
716 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
717 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
718 case GL_TEXTURE_1D_ARRAY_EXT
:
719 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
720 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
721 case GL_TEXTURE_2D_ARRAY_EXT
:
722 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
723 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
724 case GL_TEXTURE_CUBE_MAP_ARRAY
:
725 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
726 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
;
727 case GL_TEXTURE_2D_MULTISAMPLE
:
728 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
729 return GL_PROXY_TEXTURE_2D_MULTISAMPLE
;
730 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
731 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
732 return GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
;
734 _mesa_problem(NULL
, "unexpected target in _mesa_get_proxy_target()");
741 * Get the texture object that corresponds to the target of the given
742 * texture unit. The target should have already been checked for validity.
744 * \param ctx GL context.
745 * \param texUnit texture unit.
746 * \param target texture target.
748 * \return pointer to the texture object on success, or NULL on failure.
750 struct gl_texture_object
*
751 _mesa_select_tex_object(struct gl_context
*ctx
,
752 const struct gl_texture_unit
*texUnit
,
755 const GLboolean arrayTex
= (ctx
->Extensions
.MESA_texture_array
||
756 ctx
->Extensions
.EXT_texture_array
);
760 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
761 case GL_PROXY_TEXTURE_1D
:
762 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
764 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
765 case GL_PROXY_TEXTURE_2D
:
766 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
768 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
769 case GL_PROXY_TEXTURE_3D
:
770 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
771 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
772 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
773 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
774 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
775 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
776 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
777 case GL_TEXTURE_CUBE_MAP_ARB
:
778 return ctx
->Extensions
.ARB_texture_cube_map
779 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
780 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
781 return ctx
->Extensions
.ARB_texture_cube_map
782 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
783 case GL_TEXTURE_CUBE_MAP_ARRAY
:
784 return ctx
->Extensions
.ARB_texture_cube_map_array
785 ? texUnit
->CurrentTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
786 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
787 return ctx
->Extensions
.ARB_texture_cube_map_array
788 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
789 case GL_TEXTURE_RECTANGLE_NV
:
790 return ctx
->Extensions
.NV_texture_rectangle
791 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
792 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
793 return ctx
->Extensions
.NV_texture_rectangle
794 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
795 case GL_TEXTURE_1D_ARRAY_EXT
:
796 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
797 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
798 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
799 case GL_TEXTURE_2D_ARRAY_EXT
:
800 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
801 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
802 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
803 case GL_TEXTURE_BUFFER
:
804 return ctx
->API
== API_OPENGL_CORE
&&
805 ctx
->Extensions
.ARB_texture_buffer_object
?
806 texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
807 case GL_TEXTURE_EXTERNAL_OES
:
808 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
809 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
810 case GL_TEXTURE_2D_MULTISAMPLE
:
811 return ctx
->Extensions
.ARB_texture_multisample
812 ? texUnit
->CurrentTex
[TEXTURE_2D_MULTISAMPLE_INDEX
] : NULL
;
813 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
814 return ctx
->Extensions
.ARB_texture_multisample
815 ? ctx
->Texture
.ProxyTex
[TEXTURE_2D_MULTISAMPLE_INDEX
] : NULL
;
816 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
817 return ctx
->Extensions
.ARB_texture_multisample
818 ? texUnit
->CurrentTex
[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
] : NULL
;
819 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
820 return ctx
->Extensions
.ARB_texture_multisample
821 ? ctx
->Texture
.ProxyTex
[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
] : NULL
;
823 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
830 * Return pointer to texture object for given target on current texture unit.
832 struct gl_texture_object
*
833 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
835 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
836 return _mesa_select_tex_object(ctx
, texUnit
, target
);
841 * Get a texture image pointer from a texture object, given a texture
842 * target and mipmap level. The target and level parameters should
843 * have already been error-checked.
845 * \param ctx GL context.
846 * \param texObj texture unit.
847 * \param target texture target.
848 * \param level image level.
850 * \return pointer to the texture image structure, or NULL on failure.
852 struct gl_texture_image
*
853 _mesa_select_tex_image(struct gl_context
*ctx
,
854 const struct gl_texture_object
*texObj
,
855 GLenum target
, GLint level
)
857 const GLuint face
= _mesa_tex_target_to_face(target
);
861 ASSERT(level
< MAX_TEXTURE_LEVELS
);
863 return texObj
->Image
[face
][level
];
868 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
869 * it and install it. Only return NULL if passed a bad parameter or run
872 struct gl_texture_image
*
873 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
874 GLenum target
, GLint level
)
876 struct gl_texture_image
*texImage
;
881 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
883 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
885 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
889 set_tex_image(texObj
, target
, level
, texImage
);
897 * Return pointer to the specified proxy texture image.
898 * Note that proxy textures are per-context, not per-texture unit.
899 * \return pointer to texture image or NULL if invalid target, invalid
900 * level, or out of memory.
902 static struct gl_texture_image
*
903 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
905 struct gl_texture_image
*texImage
;
912 case GL_PROXY_TEXTURE_1D
:
913 if (level
>= ctx
->Const
.MaxTextureLevels
)
915 texIndex
= TEXTURE_1D_INDEX
;
917 case GL_PROXY_TEXTURE_2D
:
918 if (level
>= ctx
->Const
.MaxTextureLevels
)
920 texIndex
= TEXTURE_2D_INDEX
;
922 case GL_PROXY_TEXTURE_3D
:
923 if (level
>= ctx
->Const
.Max3DTextureLevels
)
925 texIndex
= TEXTURE_3D_INDEX
;
927 case GL_PROXY_TEXTURE_CUBE_MAP
:
928 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
930 texIndex
= TEXTURE_CUBE_INDEX
;
932 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
935 texIndex
= TEXTURE_RECT_INDEX
;
937 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
938 if (level
>= ctx
->Const
.MaxTextureLevels
)
940 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
942 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
943 if (level
>= ctx
->Const
.MaxTextureLevels
)
945 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
947 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
948 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
950 texIndex
= TEXTURE_CUBE_ARRAY_INDEX
;
952 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
955 texIndex
= TEXTURE_2D_MULTISAMPLE_INDEX
;
957 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
960 texIndex
= TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
;
966 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
968 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
970 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
973 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
974 /* Set the 'back' pointer */
975 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
982 * Get the maximum number of allowed mipmap levels.
984 * \param ctx GL context.
985 * \param target texture target.
987 * \return the maximum number of allowed mipmap levels for the given
988 * texture target, or zero if passed a bad target.
993 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
997 case GL_PROXY_TEXTURE_1D
:
999 case GL_PROXY_TEXTURE_2D
:
1000 return ctx
->Const
.MaxTextureLevels
;
1002 case GL_PROXY_TEXTURE_3D
:
1003 return ctx
->Const
.Max3DTextureLevels
;
1004 case GL_TEXTURE_CUBE_MAP
:
1005 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
1006 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
1007 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
1008 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
1009 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
1010 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
1011 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1012 return ctx
->Extensions
.ARB_texture_cube_map
1013 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
1014 case GL_TEXTURE_RECTANGLE_NV
:
1015 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1016 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
1017 case GL_TEXTURE_1D_ARRAY_EXT
:
1018 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1019 case GL_TEXTURE_2D_ARRAY_EXT
:
1020 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1021 return (ctx
->Extensions
.MESA_texture_array
||
1022 ctx
->Extensions
.EXT_texture_array
)
1023 ? ctx
->Const
.MaxTextureLevels
: 0;
1024 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1025 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1026 return ctx
->Extensions
.ARB_texture_cube_map_array
1027 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
1028 case GL_TEXTURE_BUFFER
:
1029 return ctx
->API
== API_OPENGL_CORE
&&
1030 ctx
->Extensions
.ARB_texture_buffer_object
? 1 : 0;
1031 case GL_TEXTURE_2D_MULTISAMPLE
:
1032 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
1033 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1034 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1035 return _mesa_is_desktop_gl(ctx
)
1036 && ctx
->Extensions
.ARB_texture_multisample
1038 case GL_TEXTURE_EXTERNAL_OES
:
1041 return 0; /* bad target */
1047 * Return number of dimensions per mipmap level for the given texture target.
1050 _mesa_get_texture_dimensions(GLenum target
)
1054 case GL_PROXY_TEXTURE_1D
:
1057 case GL_TEXTURE_RECTANGLE
:
1058 case GL_TEXTURE_CUBE_MAP
:
1059 case GL_PROXY_TEXTURE_2D
:
1060 case GL_PROXY_TEXTURE_RECTANGLE
:
1061 case GL_PROXY_TEXTURE_CUBE_MAP
:
1062 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1063 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1064 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1065 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1066 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1067 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1068 case GL_TEXTURE_1D_ARRAY
:
1069 case GL_PROXY_TEXTURE_1D_ARRAY
:
1070 case GL_TEXTURE_EXTERNAL_OES
:
1071 case GL_TEXTURE_2D_MULTISAMPLE
:
1072 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
1075 case GL_PROXY_TEXTURE_3D
:
1076 case GL_TEXTURE_2D_ARRAY
:
1077 case GL_PROXY_TEXTURE_2D_ARRAY
:
1078 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1079 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1080 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1081 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1083 case GL_TEXTURE_BUFFER
:
1086 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
1094 * Return the maximum number of mipmap levels for the given target
1095 * and the dimensions.
1096 * The dimensions are expected not to include the border.
1099 _mesa_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
1106 case GL_TEXTURE_1D_ARRAY
:
1107 case GL_PROXY_TEXTURE_1D
:
1108 case GL_PROXY_TEXTURE_1D_ARRAY
:
1111 case GL_TEXTURE_CUBE_MAP
:
1112 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1113 case GL_PROXY_TEXTURE_CUBE_MAP
:
1114 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1115 ASSERT(width
== height
);
1119 case GL_TEXTURE_2D_ARRAY
:
1120 case GL_PROXY_TEXTURE_2D
:
1121 case GL_PROXY_TEXTURE_2D_ARRAY
:
1122 size
= MAX2(width
, height
);
1125 case GL_PROXY_TEXTURE_3D
:
1126 size
= MAX3(width
, height
, depth
);
1128 case GL_TEXTURE_RECTANGLE
:
1129 case GL_TEXTURE_EXTERNAL_OES
:
1130 case GL_TEXTURE_2D_MULTISAMPLE
:
1131 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1132 case GL_PROXY_TEXTURE_RECTANGLE
:
1133 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
1134 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1141 return _mesa_logbase2(size
) + 1;
1145 #if 000 /* not used anymore */
1147 * glTexImage[123]D can accept a NULL image pointer. In this case we
1148 * create a texture image with unspecified image contents per the OpenGL
1152 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
1154 const GLint components
= _mesa_components_in_format(format
);
1155 const GLint numPixels
= width
* height
* depth
;
1156 GLubyte
*data
= (GLubyte
*) malloc(numPixels
* components
* sizeof(GLubyte
));
1160 * Let's see if anyone finds this. If glTexImage2D() is called with
1161 * a NULL image pointer then load the texture image with something
1162 * interesting instead of leaving it indeterminate.
1165 static const char message
[8][32] = {
1166 " X X XXXXX XXX X ",
1167 " XX XX X X X X X ",
1169 " X X XXXX XXX XXXXX ",
1172 " X X XXXXX XXX X X ",
1176 GLubyte
*imgPtr
= data
;
1178 for (h
= 0; h
< depth
; h
++) {
1179 for (i
= 0; i
< height
; i
++) {
1180 GLint srcRow
= 7 - (i
% 8);
1181 for (j
= 0; j
< width
; j
++) {
1182 GLint srcCol
= j
% 32;
1183 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1184 for (k
= 0; k
< components
; k
++) {
1200 * Set the size and format-related fields of a gl_texture_image struct
1201 * to zero. This is used when a proxy texture test fails.
1204 clear_teximage_fields(struct gl_texture_image
*img
)
1207 img
->_BaseFormat
= 0;
1208 img
->InternalFormat
= 0;
1217 img
->HeightLog2
= 0;
1219 img
->TexFormat
= MESA_FORMAT_NONE
;
1220 img
->NumSamples
= 0;
1221 img
->FixedSampleLocations
= GL_TRUE
;
1226 * Initialize basic fields of the gl_texture_image struct.
1228 * \param ctx GL context.
1229 * \param img texture image structure to be initialized.
1230 * \param width image width.
1231 * \param height image height.
1232 * \param depth image depth.
1233 * \param border image border.
1234 * \param internalFormat internal format.
1235 * \param format the actual hardware format (one of MESA_FORMAT_*)
1237 * Fills in the fields of \p img with the given information.
1238 * Note: width, height and depth include the border.
1241 _mesa_init_teximage_fields(struct gl_context
*ctx
,
1242 struct gl_texture_image
*img
,
1243 GLsizei width
, GLsizei height
, GLsizei depth
,
1244 GLint border
, GLenum internalFormat
,
1250 ASSERT(height
>= 0);
1253 target
= img
->TexObject
->Target
;
1254 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1255 ASSERT(img
->_BaseFormat
> 0);
1256 img
->InternalFormat
= internalFormat
;
1257 img
->Border
= border
;
1259 img
->Height
= height
;
1262 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1263 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1265 img
->NumSamples
= 0;
1266 img
->FixedSampleLocations
= GL_TRUE
;
1270 case GL_TEXTURE_BUFFER
:
1271 case GL_PROXY_TEXTURE_1D
:
1276 img
->HeightLog2
= 0;
1283 case GL_TEXTURE_1D_ARRAY
:
1284 case GL_PROXY_TEXTURE_1D_ARRAY
:
1285 img
->Height2
= height
; /* no border */
1286 img
->HeightLog2
= 0; /* not used */
1294 case GL_TEXTURE_RECTANGLE
:
1295 case GL_TEXTURE_CUBE_MAP
:
1296 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1297 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1298 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1299 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1300 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1301 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1302 case GL_TEXTURE_EXTERNAL_OES
:
1303 case GL_PROXY_TEXTURE_2D
:
1304 case GL_PROXY_TEXTURE_RECTANGLE
:
1305 case GL_PROXY_TEXTURE_CUBE_MAP
:
1306 case GL_TEXTURE_2D_MULTISAMPLE
:
1307 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
1308 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1309 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1316 case GL_TEXTURE_2D_ARRAY
:
1317 case GL_PROXY_TEXTURE_2D_ARRAY
:
1318 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1319 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1320 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1321 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1322 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1323 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1324 img
->Depth2
= depth
; /* no border */
1325 img
->DepthLog2
= 0; /* not used */
1328 case GL_PROXY_TEXTURE_3D
:
1329 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1330 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1331 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1332 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1335 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
1340 _mesa_get_tex_max_num_levels(target
,
1341 img
->Width2
, img
->Height2
, img
->Depth2
);
1342 img
->TexFormat
= format
;
1347 * Free and clear fields of the gl_texture_image struct.
1349 * \param ctx GL context.
1350 * \param texImage texture image structure to be cleared.
1352 * After the call, \p texImage will have no data associated with it. Its
1353 * fields are cleared so that its parent object will test incomplete.
1356 _mesa_clear_texture_image(struct gl_context
*ctx
,
1357 struct gl_texture_image
*texImage
)
1359 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1360 clear_teximage_fields(texImage
);
1365 * Check the width, height, depth and border of a texture image are legal.
1366 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1368 * The target and level parameters will have already been validated.
1369 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1372 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
1373 GLint level
, GLint width
, GLint height
,
1374 GLint depth
, GLint border
)
1380 case GL_PROXY_TEXTURE_1D
:
1381 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
1382 maxSize
>>= level
; /* level size */
1383 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1385 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1386 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1392 case GL_PROXY_TEXTURE_2D
:
1393 case GL_TEXTURE_2D_MULTISAMPLE
:
1394 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
1395 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1397 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1399 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1401 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1402 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1404 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1410 case GL_PROXY_TEXTURE_3D
:
1411 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1413 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1415 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1417 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1419 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1420 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1422 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1424 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1429 case GL_TEXTURE_RECTANGLE_NV
:
1430 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1433 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1434 if (width
< 0 || width
> maxSize
)
1436 if (height
< 0 || height
> maxSize
)
1440 case GL_TEXTURE_CUBE_MAP
:
1441 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1442 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1443 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1444 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1445 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1446 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1447 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1448 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1450 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1452 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1454 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1455 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1457 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1462 case GL_TEXTURE_1D_ARRAY_EXT
:
1463 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1464 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1466 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1468 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1470 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1471 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1476 case GL_TEXTURE_2D_ARRAY_EXT
:
1477 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1478 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1479 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1480 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1482 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1484 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1486 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1488 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1489 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1491 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1496 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1497 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1498 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1499 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1501 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1503 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1505 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1507 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1508 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1510 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1515 _mesa_problem(ctx
, "Invalid target in _mesa_legal_texture_dimensions()");
1522 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1523 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1524 * \param destImage the destination texture image.
1525 * \return GL_TRUE if error found, GL_FALSE otherwise.
1528 error_check_subtexture_dimensions(struct gl_context
*ctx
,
1529 const char *function
, GLuint dims
,
1530 const struct gl_texture_image
*destImage
,
1531 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1532 GLsizei subWidth
, GLsizei subHeight
,
1535 const GLenum target
= destImage
->TexObject
->Target
;
1540 _mesa_error(ctx
, GL_INVALID_VALUE
,
1541 "%s%dD(width=%d)", function
, dims
, subWidth
);
1545 if (dims
> 1 && subHeight
< 0) {
1546 _mesa_error(ctx
, GL_INVALID_VALUE
,
1547 "%s%dD(height=%d)", function
, dims
, subHeight
);
1551 if (dims
> 2 && subDepth
< 0) {
1552 _mesa_error(ctx
, GL_INVALID_VALUE
,
1553 "%s%dD(depth=%d)", function
, dims
, subDepth
);
1557 /* check xoffset and width */
1558 if (xoffset
< - (GLint
) destImage
->Border
) {
1559 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(xoffset)",
1564 if (xoffset
+ subWidth
> (GLint
) destImage
->Width
) {
1565 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(xoffset+width)",
1570 /* check yoffset and height */
1572 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destImage
->Border
;
1573 if (yoffset
< -yBorder
) {
1574 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(yoffset)",
1578 if (yoffset
+ subHeight
> (GLint
) destImage
->Height
) {
1579 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(yoffset+height)",
1585 /* check zoffset and depth */
1587 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destImage
->Border
;
1588 if (zoffset
< -zBorder
) {
1589 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s3D(zoffset)", function
);
1592 if (zoffset
+ subDepth
> (GLint
) destImage
->Depth
) {
1593 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s3D(zoffset+depth)", function
);
1599 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1600 * compressed texture images can be updated. But, that restriction may be
1601 * relaxed for particular compressed formats. At this time, all the
1602 * compressed formats supported by Mesa allow sub-textures to be updated
1603 * along compressed block boundaries.
1605 _mesa_get_format_block_size(destImage
->TexFormat
, &bw
, &bh
);
1607 if (bw
!= 1 || bh
!= 1) {
1608 /* offset must be multiple of block size */
1609 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1610 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1611 "%s%dD(xoffset = %d, yoffset = %d)",
1612 function
, dims
, xoffset
, yoffset
);
1616 /* The size must be a multiple of bw x bh, or we must be using a
1617 * offset+size that exactly hits the edge of the image. This
1618 * is important for small mipmap levels (1x1, 2x1, etc) and for
1621 if ((subWidth
% bw
!= 0) &&
1622 (xoffset
+ subWidth
!= (GLint
) destImage
->Width
)) {
1623 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1624 "%s%dD(width = %d)", function
, dims
, subWidth
);
1628 if ((subHeight
% bh
!= 0) &&
1629 (yoffset
+ subHeight
!= (GLint
) destImage
->Height
)) {
1630 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1631 "%s%dD(height = %d)", function
, dims
, subHeight
);
1643 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1644 * specific texture image size checks.
1646 * A hardware driver might override this function if, for example, the
1647 * max 3D texture size is 512x512x64 (i.e. not a cube).
1649 * Note that width, height, depth == 0 is not an error. However, a
1650 * texture with zero width/height/depth will be considered "incomplete"
1651 * and texturing will effectively be disabled.
1653 * \param target any texture target/type
1654 * \param level as passed to glTexImage
1655 * \param format the MESA_FORMAT_x for the tex image
1656 * \param width as passed to glTexImage
1657 * \param height as passed to glTexImage
1658 * \param depth as passed to glTexImage
1659 * \param border as passed to glTexImage
1660 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1663 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1665 GLint width
, GLint height
, GLint depth
, GLint border
)
1667 /* We just check if the image size is less than MaxTextureMbytes.
1668 * Some drivers may do more specific checks.
1670 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1671 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1672 mbytes
*= _mesa_num_tex_faces(target
);
1673 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1678 * Return true if the format is only valid for glCompressedTexImage.
1681 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1684 case GL_ETC1_RGB8_OES
:
1685 case GL_PALETTE4_RGB8_OES
:
1686 case GL_PALETTE4_RGBA8_OES
:
1687 case GL_PALETTE4_R5_G6_B5_OES
:
1688 case GL_PALETTE4_RGBA4_OES
:
1689 case GL_PALETTE4_RGB5_A1_OES
:
1690 case GL_PALETTE8_RGB8_OES
:
1691 case GL_PALETTE8_RGBA8_OES
:
1692 case GL_PALETTE8_R5_G6_B5_OES
:
1693 case GL_PALETTE8_RGBA4_OES
:
1694 case GL_PALETTE8_RGB5_A1_OES
:
1703 * Helper function to determine whether a target and specific compression
1704 * format are supported.
1707 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1710 (void) intFormat
; /* not used yet */
1714 case GL_PROXY_TEXTURE_2D
:
1715 return GL_TRUE
; /* true for any compressed format so far */
1716 case GL_PROXY_TEXTURE_CUBE_MAP
:
1717 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1718 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1719 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1720 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1721 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1722 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1723 return ctx
->Extensions
.ARB_texture_cube_map
;
1724 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1725 case GL_TEXTURE_2D_ARRAY_EXT
:
1726 return (ctx
->Extensions
.MESA_texture_array
||
1727 ctx
->Extensions
.EXT_texture_array
);
1728 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1729 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1730 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1738 * Check if the given texture target value is legal for a
1739 * glTexImage1/2/3D call.
1742 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1748 case GL_PROXY_TEXTURE_1D
:
1749 return _mesa_is_desktop_gl(ctx
);
1757 case GL_PROXY_TEXTURE_2D
:
1758 return _mesa_is_desktop_gl(ctx
);
1759 case GL_PROXY_TEXTURE_CUBE_MAP
:
1760 return _mesa_is_desktop_gl(ctx
)
1761 && ctx
->Extensions
.ARB_texture_cube_map
;
1762 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1763 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1764 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1765 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1766 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1767 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1768 return ctx
->Extensions
.ARB_texture_cube_map
;
1769 case GL_TEXTURE_RECTANGLE_NV
:
1770 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1771 return _mesa_is_desktop_gl(ctx
)
1772 && ctx
->Extensions
.NV_texture_rectangle
;
1773 case GL_TEXTURE_1D_ARRAY_EXT
:
1774 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1775 return _mesa_is_desktop_gl(ctx
)
1776 && (ctx
->Extensions
.MESA_texture_array
||
1777 ctx
->Extensions
.EXT_texture_array
);
1785 case GL_PROXY_TEXTURE_3D
:
1786 return _mesa_is_desktop_gl(ctx
);
1787 case GL_TEXTURE_2D_ARRAY_EXT
:
1788 return (_mesa_is_desktop_gl(ctx
)
1789 && (ctx
->Extensions
.MESA_texture_array
||
1790 ctx
->Extensions
.EXT_texture_array
))
1791 || _mesa_is_gles3(ctx
);
1792 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1793 return _mesa_is_desktop_gl(ctx
)
1794 && (ctx
->Extensions
.MESA_texture_array
||
1795 ctx
->Extensions
.EXT_texture_array
);
1796 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1797 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1798 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1803 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1810 * Check if the given texture target value is legal for a
1811 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1812 * The difference compared to legal_teximage_target() above is that
1813 * proxy targets are not supported.
1816 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1820 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1825 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1826 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1827 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1828 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1829 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1830 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1831 return ctx
->Extensions
.ARB_texture_cube_map
;
1832 case GL_TEXTURE_RECTANGLE_NV
:
1833 return _mesa_is_desktop_gl(ctx
)
1834 && ctx
->Extensions
.NV_texture_rectangle
;
1835 case GL_TEXTURE_1D_ARRAY_EXT
:
1836 return _mesa_is_desktop_gl(ctx
)
1837 && (ctx
->Extensions
.MESA_texture_array
||
1838 ctx
->Extensions
.EXT_texture_array
);
1846 case GL_TEXTURE_2D_ARRAY_EXT
:
1847 return (_mesa_is_desktop_gl(ctx
)
1848 && (ctx
->Extensions
.MESA_texture_array
||
1849 ctx
->Extensions
.EXT_texture_array
))
1850 || _mesa_is_gles3(ctx
);
1851 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1852 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1853 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1858 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1866 * Helper function to determine if a texture object is mutable (in terms
1867 * of GL_ARB_texture_storage).
1870 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1872 struct gl_texture_object
*texObj
= _mesa_get_current_tex_object(ctx
, target
);
1873 return !texObj
->Immutable
;
1878 * Return expected size of a compressed texture.
1881 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1884 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1885 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1890 * Test the glTexImage[123]D() parameters for errors.
1892 * \param ctx GL context.
1893 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1894 * \param target texture target given by the user (already validated).
1895 * \param level image level given by the user.
1896 * \param internalFormat internal format given by the user.
1897 * \param format pixel data format given by the user.
1898 * \param type pixel data type given by the user.
1899 * \param width image width given by the user.
1900 * \param height image height given by the user.
1901 * \param depth image depth given by the user.
1902 * \param border image border given by the user.
1904 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1906 * Verifies each of the parameters against the constants specified in
1907 * __struct gl_contextRec::Const and the supported extensions, and according
1908 * to the OpenGL specification.
1909 * Note that we don't fully error-check the width, height, depth values
1910 * here. That's done in _mesa_legal_texture_dimensions() which is used
1911 * by several other GL entrypoints. Plus, texture dims have a special
1912 * interaction with proxy textures.
1915 texture_error_check( struct gl_context
*ctx
,
1916 GLuint dimensions
, GLenum target
,
1917 GLint level
, GLint internalFormat
,
1918 GLenum format
, GLenum type
,
1919 GLint width
, GLint height
,
1920 GLint depth
, GLint border
)
1922 GLboolean colorFormat
;
1925 /* Even though there are no color-index textures, we still have to support
1926 * uploading color-index data and remapping it to RGB via the
1927 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1929 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1931 /* Note: for proxy textures, some error conditions immediately generate
1932 * a GL error in the usual way. But others do not generate a GL error.
1933 * Instead, they cause the width, height, depth, format fields of the
1934 * texture image to be zeroed-out. The GL spec seems to indicate that the
1935 * zero-out behaviour is only used in cases related to memory allocation.
1939 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1940 _mesa_error(ctx
, GL_INVALID_VALUE
,
1941 "glTexImage%dD(level=%d)", dimensions
, level
);
1946 if (border
< 0 || border
> 1 ||
1947 ((ctx
->API
!= API_OPENGL_COMPAT
||
1948 target
== GL_TEXTURE_RECTANGLE_NV
||
1949 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1950 _mesa_error(ctx
, GL_INVALID_VALUE
,
1951 "glTexImage%dD(border=%d)", dimensions
, border
);
1955 if (width
< 0 || height
< 0 || depth
< 0) {
1956 _mesa_error(ctx
, GL_INVALID_VALUE
,
1957 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1961 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1962 * combinations of format, internalFormat, and type that can be used.
1963 * Formats and types that require additional extensions (e.g., GL_FLOAT
1964 * requires GL_OES_texture_float) are filtered elsewhere.
1967 if (_mesa_is_gles(ctx
)) {
1968 if (_mesa_is_gles3(ctx
)) {
1969 err
= _mesa_es3_error_check_format_and_type(format
, type
,
1972 if (format
!= internalFormat
) {
1973 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1974 "glTexImage%dD(format = %s, internalFormat = %s)",
1976 _mesa_lookup_enum_by_nr(format
),
1977 _mesa_lookup_enum_by_nr(internalFormat
));
1981 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1983 if (err
!= GL_NO_ERROR
) {
1984 _mesa_error(ctx
, err
,
1985 "glTexImage%dD(format = %s, type = %s, internalFormat = %s)",
1987 _mesa_lookup_enum_by_nr(format
),
1988 _mesa_lookup_enum_by_nr(type
),
1989 _mesa_lookup_enum_by_nr(internalFormat
));
1994 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
1995 _mesa_is_cube_face(target
)) && width
!= height
) {
1996 _mesa_error(ctx
, GL_INVALID_VALUE
,
1997 "glTexImage2D(cube width != height)");
2001 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
||
2002 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) && width
!= height
) {
2003 _mesa_error(ctx
, GL_INVALID_VALUE
,
2004 "glTexImage3D(cube array width != height)");
2008 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
||
2009 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) && (depth
% 6)) {
2010 _mesa_error(ctx
, GL_INVALID_VALUE
,
2011 "glTexImage3D(cube array depth not multiple of 6)");
2015 /* Check internalFormat */
2016 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2017 _mesa_error(ctx
, GL_INVALID_VALUE
,
2018 "glTexImage%dD(internalFormat=%s)",
2019 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
2023 /* Check incoming image format and type */
2024 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2025 if (err
!= GL_NO_ERROR
) {
2026 _mesa_error(ctx
, err
,
2027 "glTexImage%dD(incompatible format = %s, type = %s)",
2028 dimensions
, _mesa_lookup_enum_by_nr(format
),
2029 _mesa_lookup_enum_by_nr(type
));
2033 /* make sure internal format and format basically agree */
2034 colorFormat
= _mesa_is_color_format(format
);
2035 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
2036 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
2037 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
2038 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
2039 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
2040 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2041 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
2042 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
),
2043 _mesa_lookup_enum_by_nr(format
));
2047 /* additional checks for ycbcr textures */
2048 if (internalFormat
== GL_YCBCR_MESA
) {
2049 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
2050 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
2051 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
2053 _mesa_snprintf(message
, sizeof(message
),
2054 "glTexImage%dD(format/type YCBCR mismatch)",
2056 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
2057 return GL_TRUE
; /* error */
2059 if (target
!= GL_TEXTURE_2D
&&
2060 target
!= GL_PROXY_TEXTURE_2D
&&
2061 target
!= GL_TEXTURE_RECTANGLE_NV
&&
2062 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
2063 _mesa_error(ctx
, GL_INVALID_ENUM
,
2064 "glTexImage%dD(bad target for YCbCr texture)",
2070 _mesa_snprintf(message
, sizeof(message
),
2071 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
2072 dimensions
, border
);
2073 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
2078 /* additional checks for depth textures */
2079 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
2080 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_STENCIL
) {
2081 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
2082 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
2083 if (target
!= GL_TEXTURE_1D
&&
2084 target
!= GL_PROXY_TEXTURE_1D
&&
2085 target
!= GL_TEXTURE_2D
&&
2086 target
!= GL_PROXY_TEXTURE_2D
&&
2087 target
!= GL_TEXTURE_1D_ARRAY
&&
2088 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
2089 target
!= GL_TEXTURE_2D_ARRAY
&&
2090 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
2091 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
2092 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
2093 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
2094 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
2095 || (ctx
->API
== API_OPENGLES2
&& ctx
->Extensions
.OES_depth_texture_cube_map
))) &&
2096 !((target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
2097 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
) &&
2098 ctx
->Extensions
.ARB_texture_cube_map_array
)) {
2099 _mesa_error(ctx
, GL_INVALID_ENUM
,
2100 "glTexImage%dD(bad target for depth texture)",
2106 /* additional checks for compressed textures */
2107 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2108 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2109 _mesa_error(ctx
, GL_INVALID_ENUM
,
2110 "glTexImage%dD(target can't be compressed)", dimensions
);
2113 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2114 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2115 "glTexImage%dD(no compression for format)", dimensions
);
2119 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2120 "glTexImage%dD(border!=0)", dimensions
);
2125 /* additional checks for integer textures */
2126 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
2127 (_mesa_is_enum_format_integer(format
) !=
2128 _mesa_is_enum_format_integer(internalFormat
))) {
2129 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2130 "glTexImage%dD(integer/non-integer format mismatch)",
2135 if (!mutable_tex_object(ctx
, target
)) {
2136 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2137 "glTexImage%dD(immutable texture)", dimensions
);
2141 /* if we get here, the parameters are OK */
2147 * Error checking for glCompressedTexImage[123]D().
2148 * Note that the width, height and depth values are not fully error checked
2150 * \return GL_TRUE if a error is found, GL_FALSE otherwise
2153 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
2154 GLenum target
, GLint level
,
2155 GLenum internalFormat
, GLsizei width
,
2156 GLsizei height
, GLsizei depth
, GLint border
,
2159 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
2161 GLenum error
= GL_NO_ERROR
;
2162 char *reason
= ""; /* no error */
2164 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2166 error
= GL_INVALID_ENUM
;
2170 /* This will detect any invalid internalFormat value */
2171 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
2172 reason
= "internalFormat";
2173 error
= GL_INVALID_ENUM
;
2177 switch (internalFormat
) {
2178 case GL_PALETTE4_RGB8_OES
:
2179 case GL_PALETTE4_RGBA8_OES
:
2180 case GL_PALETTE4_R5_G6_B5_OES
:
2181 case GL_PALETTE4_RGBA4_OES
:
2182 case GL_PALETTE4_RGB5_A1_OES
:
2183 case GL_PALETTE8_RGB8_OES
:
2184 case GL_PALETTE8_RGBA8_OES
:
2185 case GL_PALETTE8_R5_G6_B5_OES
:
2186 case GL_PALETTE8_RGBA4_OES
:
2187 case GL_PALETTE8_RGB5_A1_OES
:
2188 /* check level (note that level should be zero or less!) */
2189 if (level
> 0 || level
< -maxLevels
) {
2191 error
= GL_INVALID_VALUE
;
2195 if (dimensions
!= 2) {
2196 reason
= "compressed paletted textures must be 2D";
2197 error
= GL_INVALID_OPERATION
;
2201 /* Figure out the expected texture size (in bytes). This will be
2202 * checked against the actual size later.
2204 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
2207 /* This is for the benefit of the TestProxyTexImage below. It expects
2208 * level to be non-negative. OES_compressed_paletted_texture uses a
2209 * weird mechanism where the level specified to glCompressedTexImage2D
2210 * is -(n-1) number of levels in the texture, and the data specifies the
2211 * complete mipmap stack. This is done to ensure the palette is the
2212 * same for all levels.
2219 if (level
< 0 || level
>= maxLevels
) {
2221 error
= GL_INVALID_VALUE
;
2225 /* Figure out the expected texture size (in bytes). This will be
2226 * checked against the actual size later.
2228 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2232 /* This should really never fail */
2233 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2234 reason
= "internalFormat";
2235 error
= GL_INVALID_ENUM
;
2239 /* No compressed formats support borders at this time */
2241 reason
= "border != 0";
2242 error
= GL_INVALID_VALUE
;
2246 /* For cube map, width must equal height */
2247 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2248 _mesa_is_cube_face(target
)) && width
!= height
) {
2249 reason
= "width != height";
2250 error
= GL_INVALID_VALUE
;
2254 /* check image size in bytes */
2255 if (expectedSize
!= imageSize
) {
2256 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2257 * if <imageSize> is not consistent with the format, dimensions, and
2258 * contents of the specified image.
2260 reason
= "imageSize inconsistant with width/height/format";
2261 error
= GL_INVALID_VALUE
;
2265 if (!mutable_tex_object(ctx
, target
)) {
2266 reason
= "immutable texture";
2267 error
= GL_INVALID_OPERATION
;
2274 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2281 * Test glTexSubImage[123]D() parameters for errors.
2283 * \param ctx GL context.
2284 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2285 * \param target texture target given by the user (already validated)
2286 * \param level image level given by the user.
2287 * \param xoffset sub-image x offset given by the user.
2288 * \param yoffset sub-image y offset given by the user.
2289 * \param zoffset sub-image z offset given by the user.
2290 * \param format pixel data format given by the user.
2291 * \param type pixel data type given by the user.
2292 * \param width image width given by the user.
2293 * \param height image height given by the user.
2294 * \param depth image depth given by the user.
2296 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2298 * Verifies each of the parameters against the constants specified in
2299 * __struct gl_contextRec::Const and the supported extensions, and according
2300 * to the OpenGL specification.
2303 texsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2304 GLenum target
, GLint level
,
2305 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2306 GLint width
, GLint height
, GLint depth
,
2307 GLenum format
, GLenum type
)
2309 struct gl_texture_object
*texObj
;
2310 struct gl_texture_image
*texImage
;
2313 /* check target (proxies not allowed) */
2314 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2315 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2316 dimensions
, _mesa_lookup_enum_by_nr(target
));
2321 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2322 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(level=%d)",
2327 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2328 * combinations of format and type that can be used. Formats and types
2329 * that require additional extensions (e.g., GL_FLOAT requires
2330 * GL_OES_texture_float) are filtered elsewhere.
2332 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2333 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2334 if (err
!= GL_NO_ERROR
) {
2335 _mesa_error(ctx
, err
,
2336 "glTexSubImage%dD(format = %s, type = %s)",
2338 _mesa_lookup_enum_by_nr(format
),
2339 _mesa_lookup_enum_by_nr(type
));
2344 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2345 if (err
!= GL_NO_ERROR
) {
2346 _mesa_error(ctx
, err
,
2347 "glTexSubImage%dD(incompatible format = %s, type = %s)",
2348 dimensions
, _mesa_lookup_enum_by_nr(format
),
2349 _mesa_lookup_enum_by_nr(type
));
2353 /* Get dest texture object / image pointers */
2354 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2356 /* must be out of memory */
2357 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage%dD()", dimensions
);
2361 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2363 /* non-existant texture level */
2364 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2365 "glTexSubImage%dD(invalid texture image)", dimensions
);
2369 if (error_check_subtexture_dimensions(ctx
, "glTexSubImage", dimensions
,
2370 texImage
, xoffset
, yoffset
, 0,
2371 width
, height
, 1)) {
2375 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2376 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2377 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2378 "glTexSubImage%dD(no compression for format)", dimensions
);
2383 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2384 /* both source and dest must be integer-valued, or neither */
2385 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
2386 _mesa_is_enum_format_integer(format
)) {
2387 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2388 "glTexSubImage%dD(integer/non-integer format mismatch)",
2399 * Test glCopyTexImage[12]D() parameters for errors.
2401 * \param ctx GL context.
2402 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2403 * \param target texture target given by the user.
2404 * \param level image level given by the user.
2405 * \param internalFormat internal format given by the user.
2406 * \param width image width given by the user.
2407 * \param height image height given by the user.
2408 * \param border texture border.
2410 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2412 * Verifies each of the parameters against the constants specified in
2413 * __struct gl_contextRec::Const and the supported extensions, and according
2414 * to the OpenGL specification.
2417 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2418 GLenum target
, GLint level
, GLint internalFormat
,
2419 GLint width
, GLint height
, GLint border
)
2422 GLint rb_base_format
;
2423 struct gl_renderbuffer
*rb
;
2424 GLenum rb_internal_format
;
2427 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2428 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2429 dimensions
, _mesa_lookup_enum_by_nr(target
));
2434 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2435 _mesa_error(ctx
, GL_INVALID_VALUE
,
2436 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2440 /* Check that the source buffer is complete */
2441 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2442 if (ctx
->ReadBuffer
->_Status
== 0) {
2443 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2445 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2446 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2447 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2451 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2452 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2453 "glCopyTexImage%dD(multisample FBO)",
2460 if (border
< 0 || border
> 1 ||
2461 ((ctx
->API
!= API_OPENGL_COMPAT
||
2462 target
== GL_TEXTURE_RECTANGLE_NV
||
2463 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2464 _mesa_error(ctx
, GL_INVALID_VALUE
,
2465 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2469 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
2471 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2472 "glCopyTexImage%dD(read buffer)", dimensions
);
2476 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2479 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2480 switch (internalFormat
) {
2485 case GL_LUMINANCE_ALPHA
:
2488 _mesa_error(ctx
, GL_INVALID_VALUE
,
2489 "glCopyTexImage%dD(internalFormat)", dimensions
);
2494 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2495 if (baseFormat
< 0) {
2496 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2497 "glCopyTexImage%dD(internalFormat)", dimensions
);
2501 rb_internal_format
= rb
->InternalFormat
;
2502 rb_base_format
= _mesa_base_tex_format(ctx
, rb
->InternalFormat
);
2503 if (_mesa_is_color_format(internalFormat
)) {
2504 if (rb_base_format
< 0) {
2505 _mesa_error(ctx
, GL_INVALID_VALUE
,
2506 "glCopyTexImage%dD(internalFormat)", dimensions
);
2511 if (_mesa_is_gles(ctx
)) {
2513 if (_mesa_base_format_component_count(baseFormat
) >
2514 _mesa_base_format_component_count(rb_base_format
)) {
2517 if (baseFormat
== GL_DEPTH_COMPONENT
||
2518 baseFormat
== GL_DEPTH_STENCIL
||
2519 rb_base_format
== GL_DEPTH_COMPONENT
||
2520 rb_base_format
== GL_DEPTH_STENCIL
||
2521 ((baseFormat
== GL_LUMINANCE_ALPHA
||
2522 baseFormat
== GL_ALPHA
) &&
2523 rb_base_format
!= GL_RGBA
) ||
2524 internalFormat
== GL_RGB9_E5
) {
2527 if (internalFormat
== GL_RGB9_E5
) {
2531 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2532 "glCopyTexImage%dD(internalFormat)", dimensions
);
2537 if (_mesa_is_gles3(ctx
)) {
2538 bool rb_is_srgb
= false;
2539 bool dst_is_srgb
= false;
2541 if (ctx
->Extensions
.EXT_framebuffer_sRGB
&&
2542 _mesa_get_format_color_encoding(rb
->Format
) == GL_SRGB
) {
2546 if (_mesa_get_linear_internalformat(internalFormat
) != internalFormat
) {
2550 if (rb_is_srgb
!= dst_is_srgb
) {
2551 /* Page 137 (page 149 of the PDF) in section 3.8.5 of the
2552 * OpenGLES 3.0.0 spec says:
2554 * "The error INVALID_OPERATION is also generated if the
2555 * value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING for the
2556 * framebuffer attachment corresponding to the read buffer
2557 * is LINEAR (see section 6.1.13) and internalformat is
2558 * one of the sRGB formats described in section 3.8.16, or
2559 * if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING is
2560 * SRGB and internalformat is not one of the sRGB formats."
2562 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2563 "glCopyTexImage%dD(srgb usage mismatch)", dimensions
);
2568 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2569 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2570 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2574 /* From the EXT_texture_integer spec:
2576 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2577 * if the texture internalformat is an integer format and the read color
2578 * buffer is not an integer format, or if the internalformat is not an
2579 * integer format and the read color buffer is an integer format."
2581 if (_mesa_is_color_format(internalFormat
)) {
2582 bool is_int
= _mesa_is_enum_format_integer(internalFormat
);
2583 bool is_rbint
= _mesa_is_enum_format_integer(rb_internal_format
);
2584 if (is_int
|| is_rbint
) {
2585 if (is_int
!= is_rbint
) {
2586 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2587 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2589 } else if (_mesa_is_gles(ctx
) &&
2590 _mesa_is_enum_format_unsigned_int(internalFormat
) !=
2591 _mesa_is_enum_format_unsigned_int(rb_internal_format
)) {
2592 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2593 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions
);
2599 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2600 _mesa_is_cube_face(target
)) && width
!= height
) {
2601 _mesa_error(ctx
, GL_INVALID_VALUE
,
2602 "glTexImage2D(cube width != height)");
2606 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2607 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2608 _mesa_error(ctx
, GL_INVALID_ENUM
,
2609 "glCopyTexImage%dD(target)", dimensions
);
2612 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2613 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2614 "glCopyTexImage%dD(no compression for format)", dimensions
);
2618 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2619 "glCopyTexImage%dD(border!=0)", dimensions
);
2624 if (!mutable_tex_object(ctx
, target
)) {
2625 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2626 "glCopyTexImage%dD(immutable texture)", dimensions
);
2630 /* if we get here, the parameters are OK */
2636 * Test glCopyTexSubImage[12]D() parameters for errors.
2637 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2640 copytexsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2641 GLenum target
, GLint level
,
2642 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2643 GLint width
, GLint height
)
2645 struct gl_texture_object
*texObj
;
2646 struct gl_texture_image
*texImage
;
2648 /* Check that the source buffer is complete */
2649 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2650 if (ctx
->ReadBuffer
->_Status
== 0) {
2651 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2653 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2654 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2655 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2659 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2660 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2661 "glCopyTexSubImage%dD(multisample FBO)",
2667 /* check target (proxies not allowed) */
2668 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2669 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2670 dimensions
, _mesa_lookup_enum_by_nr(target
));
2675 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2676 _mesa_error(ctx
, GL_INVALID_VALUE
,
2677 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2681 /* Get dest texture object / image pointers */
2682 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2684 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage%dD()", dimensions
);
2688 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2690 /* destination image does not exist */
2691 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2692 "glCopyTexSubImage%dD(invalid texture image)", dimensions
);
2696 if (error_check_subtexture_dimensions(ctx
, "glCopyTexSubImage",
2697 dimensions
, texImage
,
2698 xoffset
, yoffset
, zoffset
,
2699 width
, height
, 1)) {
2703 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2704 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2705 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2706 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2711 if (texImage
->InternalFormat
== GL_YCBCR_MESA
) {
2712 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2716 if (!_mesa_source_buffer_exists(ctx
, texImage
->_BaseFormat
)) {
2717 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2718 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2719 dimensions
, texImage
->_BaseFormat
);
2723 /* From the EXT_texture_integer spec:
2725 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2726 * if the texture internalformat is an integer format and the read color
2727 * buffer is not an integer format, or if the internalformat is not an
2728 * integer format and the read color buffer is an integer format."
2730 if (_mesa_is_color_format(texImage
->InternalFormat
)) {
2731 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2733 if (_mesa_is_format_integer_color(rb
->Format
) !=
2734 _mesa_is_format_integer_color(texImage
->TexFormat
)) {
2735 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2736 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2741 /* if we get here, the parameters are OK */
2746 /** Callback info for walking over FBO hash table */
2749 struct gl_context
*ctx
;
2750 struct gl_texture_object
*texObj
;
2756 * Check render to texture callback. Called from _mesa_HashWalk().
2759 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2761 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2762 const struct cb_info
*info
= (struct cb_info
*) userData
;
2763 struct gl_context
*ctx
= info
->ctx
;
2764 const struct gl_texture_object
*texObj
= info
->texObj
;
2765 const GLuint level
= info
->level
, face
= info
->face
;
2767 /* If this is a user-created FBO */
2768 if (_mesa_is_user_fbo(fb
)) {
2770 /* check if any of the FBO's attachments point to 'texObj' */
2771 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2772 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2773 if (att
->Type
== GL_TEXTURE
&&
2774 att
->Texture
== texObj
&&
2775 att
->TextureLevel
== level
&&
2776 att
->CubeMapFace
== face
) {
2777 _mesa_update_texture_renderbuffer(ctx
, ctx
->DrawBuffer
, att
);
2778 ASSERT(att
->Renderbuffer
->TexImage
);
2779 /* Mark fb status as indeterminate to force re-validation */
2788 * When a texture image is specified we have to check if it's bound to
2789 * any framebuffer objects (render to texture) in order to detect changes
2790 * in size or format since that effects FBO completeness.
2791 * Any FBOs rendering into the texture must be re-validated.
2794 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2795 struct gl_texture_object
*texObj
,
2796 GLuint face
, GLuint level
)
2798 /* Only check this texture if it's been marked as RenderToTexture */
2799 if (texObj
->_RenderToTexture
) {
2800 struct cb_info info
;
2802 info
.texObj
= texObj
;
2805 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2811 * If the texture object's GenerateMipmap flag is set and we've
2812 * changed the texture base level image, regenerate the rest of the
2813 * mipmap levels now.
2816 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2817 struct gl_texture_object
*texObj
, GLint level
)
2819 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2820 if (texObj
->GenerateMipmap
&&
2821 level
== texObj
->BaseLevel
&&
2822 level
< texObj
->MaxLevel
) {
2823 ASSERT(ctx
->Driver
.GenerateMipmap
);
2824 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2829 /** Debug helper: override the user-requested internal format */
2831 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2834 if (internalFormat
== GL_RGBA16F_ARB
||
2835 internalFormat
== GL_RGBA32F_ARB
) {
2836 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2839 else if (internalFormat
== GL_RGB16F_ARB
||
2840 internalFormat
== GL_RGB32F_ARB
) {
2841 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2844 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2845 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2846 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2847 return GL_LUMINANCE_ALPHA
;
2849 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2850 internalFormat
== GL_LUMINANCE32F_ARB
) {
2851 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2852 return GL_LUMINANCE
;
2854 else if (internalFormat
== GL_ALPHA16F_ARB
||
2855 internalFormat
== GL_ALPHA32F_ARB
) {
2856 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2860 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2861 internalFormat = GL_RGBA;
2865 return internalFormat
;
2868 return internalFormat
;
2874 * Choose the actual hardware format for a texture image.
2875 * Try to use the same format as the previous image level when possible.
2876 * Otherwise, ask the driver for the best format.
2877 * It's important to try to choose a consistant format for all levels
2878 * for efficient texture memory layout/allocation. In particular, this
2879 * comes up during automatic mipmap generation.
2882 _mesa_choose_texture_format(struct gl_context
*ctx
,
2883 struct gl_texture_object
*texObj
,
2884 GLenum target
, GLint level
,
2885 GLenum internalFormat
, GLenum format
, GLenum type
)
2889 /* see if we've already chosen a format for the previous level */
2891 struct gl_texture_image
*prevImage
=
2892 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2893 /* See if the prev level is defined and has an internal format which
2894 * matches the new internal format.
2897 prevImage
->Width
> 0 &&
2898 prevImage
->InternalFormat
== internalFormat
) {
2899 /* use the same format */
2900 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2901 return prevImage
->TexFormat
;
2905 /* If the application requested compression to an S3TC format but we don't
2906 * have the DTXn library, force a generic compressed format instead.
2908 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2909 const GLenum before
= internalFormat
;
2911 switch (internalFormat
) {
2912 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2913 if (!ctx
->Mesa_DXTn
)
2914 internalFormat
= GL_COMPRESSED_RGB
;
2916 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2917 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2918 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2919 if (!ctx
->Mesa_DXTn
)
2920 internalFormat
= GL_COMPRESSED_RGBA
;
2926 if (before
!= internalFormat
) {
2928 "DXT compression requested (%s), "
2929 "but libtxc_dxtn library not installed. Using %s "
2931 _mesa_lookup_enum_by_nr(before
),
2932 _mesa_lookup_enum_by_nr(internalFormat
));
2936 /* choose format from scratch */
2937 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, texObj
->Target
, internalFormat
,
2939 ASSERT(f
!= MESA_FORMAT_NONE
);
2945 * Adjust pixel unpack params and image dimensions to strip off the
2946 * one-pixel texture border.
2948 * Gallium and intel don't support texture borders. They've seldem been used
2949 * and seldom been implemented correctly anyway.
2951 * \param unpackNew returns the new pixel unpack parameters
2954 strip_texture_border(GLenum target
,
2955 GLint
*width
, GLint
*height
, GLint
*depth
,
2956 const struct gl_pixelstore_attrib
*unpack
,
2957 struct gl_pixelstore_attrib
*unpackNew
)
2963 *unpackNew
= *unpack
;
2965 if (unpackNew
->RowLength
== 0)
2966 unpackNew
->RowLength
= *width
;
2968 if (unpackNew
->ImageHeight
== 0)
2969 unpackNew
->ImageHeight
= *height
;
2971 assert(*width
>= 3);
2972 unpackNew
->SkipPixels
++; /* skip the border */
2973 *width
= *width
- 2; /* reduce the width by two border pixels */
2975 /* The min height of a texture with a border is 3 */
2976 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2977 unpackNew
->SkipRows
++; /* skip the border */
2978 *height
= *height
- 2; /* reduce the height by two border pixels */
2982 target
!= GL_TEXTURE_2D_ARRAY
&&
2983 target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
2984 unpackNew
->SkipImages
++; /* skip the border */
2985 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2991 * Common code to implement all the glTexImage1D/2D/3D functions
2992 * as well as glCompressedTexImage1D/2D/3D.
2993 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2994 * \param format the user's image format (only used if !compressed)
2995 * \param type the user's image type (only used if !compressed)
2996 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2999 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
3000 GLenum target
, GLint level
, GLint internalFormat
,
3001 GLsizei width
, GLsizei height
, GLsizei depth
,
3002 GLint border
, GLenum format
, GLenum type
,
3003 GLsizei imageSize
, const GLvoid
*pixels
)
3005 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
3006 struct gl_pixelstore_attrib unpack_no_border
;
3007 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
3008 struct gl_texture_object
*texObj
;
3009 gl_format texFormat
;
3010 GLboolean dimensionsOK
, sizeOK
;
3012 FLUSH_VERTICES(ctx
, 0);
3014 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
3017 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
3019 _mesa_lookup_enum_by_nr(target
), level
,
3020 _mesa_lookup_enum_by_nr(internalFormat
),
3021 width
, height
, depth
, border
, pixels
);
3024 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
3026 _mesa_lookup_enum_by_nr(target
), level
,
3027 _mesa_lookup_enum_by_nr(internalFormat
),
3028 width
, height
, depth
, border
,
3029 _mesa_lookup_enum_by_nr(format
),
3030 _mesa_lookup_enum_by_nr(type
), pixels
);
3033 internalFormat
= override_internal_format(internalFormat
, width
, height
);
3035 /* target error checking */
3036 if (!legal_teximage_target(ctx
, dims
, target
)) {
3037 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
3038 func
, dims
, _mesa_lookup_enum_by_nr(target
));
3042 /* general error checking */
3044 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
3046 width
, height
, depth
,
3051 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3052 format
, type
, width
, height
, depth
, border
))
3056 /* Here we convert a cpal compressed image into a regular glTexImage2D
3057 * call by decompressing the texture. If we really want to support cpal
3058 * textures in any driver this would have to be changed.
3060 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
3061 switch (internalFormat
) {
3062 case GL_PALETTE4_RGB8_OES
:
3063 case GL_PALETTE4_RGBA8_OES
:
3064 case GL_PALETTE4_R5_G6_B5_OES
:
3065 case GL_PALETTE4_RGBA4_OES
:
3066 case GL_PALETTE4_RGB5_A1_OES
:
3067 case GL_PALETTE8_RGB8_OES
:
3068 case GL_PALETTE8_RGBA8_OES
:
3069 case GL_PALETTE8_R5_G6_B5_OES
:
3070 case GL_PALETTE8_RGBA4_OES
:
3071 case GL_PALETTE8_RGB5_A1_OES
:
3072 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
3073 width
, height
, imageSize
, pixels
);
3078 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3082 /* For glCompressedTexImage() the driver has no choice about the
3083 * texture format since we'll never transcode the user's compressed
3084 * image data. The internalFormat was error checked earlier.
3086 texFormat
= _mesa_glenum_to_compressed_format(internalFormat
);
3089 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3090 internalFormat
, format
, type
);
3093 assert(texFormat
!= MESA_FORMAT_NONE
);
3095 /* check that width, height, depth are legal for the mipmap level */
3096 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
3097 height
, depth
, border
);
3099 /* check that the texture won't take too much memory, etc */
3100 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3102 width
, height
, depth
, border
);
3104 if (_mesa_is_proxy_texture(target
)) {
3105 /* Proxy texture: just clear or set state depending on error checking */
3106 struct gl_texture_image
*texImage
=
3107 get_proxy_tex_image(ctx
, target
, level
);
3110 return; /* GL_OUT_OF_MEMORY already recorded */
3112 if (dimensionsOK
&& sizeOK
) {
3113 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
3114 border
, internalFormat
, texFormat
);
3117 clear_teximage_fields(texImage
);
3121 /* non-proxy target */
3122 const GLuint face
= _mesa_tex_target_to_face(target
);
3123 struct gl_texture_image
*texImage
;
3125 if (!dimensionsOK
) {
3126 _mesa_error(ctx
, GL_INVALID_VALUE
,
3127 "glTexImage%uD(invalid width or height or depth)",
3133 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3134 "glTexImage%uD(image too large)", dims
);
3138 /* Allow a hardware driver to just strip out the border, to provide
3139 * reliable but slightly incorrect hardware rendering instead of
3140 * rarely-tested software fallback rendering.
3142 if (border
&& ctx
->Const
.StripTextureBorder
) {
3143 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
3146 unpack
= &unpack_no_border
;
3149 if (ctx
->NewState
& _NEW_PIXEL
)
3150 _mesa_update_state(ctx
);
3152 _mesa_lock_texture(ctx
, texObj
);
3154 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3157 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3160 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3162 _mesa_init_teximage_fields(ctx
, texImage
,
3163 width
, height
, depth
,
3164 border
, internalFormat
, texFormat
);
3166 /* Give the texture to the driver. <pixels> may be null. */
3167 if (width
> 0 && height
> 0 && depth
> 0) {
3169 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3173 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
3174 type
, pixels
, unpack
);
3178 check_gen_mipmap(ctx
, target
, texObj
, level
);
3180 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3182 _mesa_dirty_texobj(ctx
, texObj
);
3185 _mesa_unlock_texture(ctx
, texObj
);
3192 * Called from the API. Note that width includes the border.
3195 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3196 GLsizei width
, GLint border
, GLenum format
,
3197 GLenum type
, const GLvoid
*pixels
)
3199 GET_CURRENT_CONTEXT(ctx
);
3200 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3201 border
, format
, type
, 0, pixels
);
3206 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3207 GLsizei width
, GLsizei height
, GLint border
,
3208 GLenum format
, GLenum type
,
3209 const GLvoid
*pixels
)
3211 GET_CURRENT_CONTEXT(ctx
);
3212 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3213 border
, format
, type
, 0, pixels
);
3218 * Called by the API or display list executor.
3219 * Note that width and height include the border.
3222 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3223 GLsizei width
, GLsizei height
, GLsizei depth
,
3224 GLint border
, GLenum format
, GLenum type
,
3225 const GLvoid
*pixels
)
3227 GET_CURRENT_CONTEXT(ctx
);
3228 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3229 width
, height
, depth
,
3230 border
, format
, type
, 0, pixels
);
3235 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3236 GLsizei width
, GLsizei height
, GLsizei depth
,
3237 GLint border
, GLenum format
, GLenum type
,
3238 const GLvoid
*pixels
)
3240 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3241 depth
, border
, format
, type
, pixels
);
3246 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3248 struct gl_texture_object
*texObj
;
3249 struct gl_texture_image
*texImage
;
3251 GET_CURRENT_CONTEXT(ctx
);
3252 FLUSH_VERTICES(ctx
, 0);
3256 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3258 case GL_TEXTURE_EXTERNAL_OES
:
3260 _mesa_is_gles(ctx
) ? ctx
->Extensions
.OES_EGL_image_external
: false;
3263 valid_target
= false;
3267 if (!valid_target
) {
3268 _mesa_error(ctx
, GL_INVALID_ENUM
,
3269 "glEGLImageTargetTexture2D(target=%d)", target
);
3274 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3275 "glEGLImageTargetTexture2D(image=%p)", image
);
3279 if (ctx
->NewState
& _NEW_PIXEL
)
3280 _mesa_update_state(ctx
);
3282 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3283 _mesa_lock_texture(ctx
, texObj
);
3285 if (texObj
->Immutable
) {
3286 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3287 "glEGLImageTargetTexture2D(texture is immutable)");
3288 _mesa_unlock_texture(ctx
, texObj
);
3292 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3294 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3296 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3298 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3299 texObj
, texImage
, image
);
3301 _mesa_dirty_texobj(ctx
, texObj
);
3303 _mesa_unlock_texture(ctx
, texObj
);
3310 * Implement all the glTexSubImage1/2/3D() functions.
3313 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3314 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3315 GLsizei width
, GLsizei height
, GLsizei depth
,
3316 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3318 struct gl_texture_object
*texObj
;
3319 struct gl_texture_image
*texImage
;
3321 FLUSH_VERTICES(ctx
, 0);
3323 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3324 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3326 _mesa_lookup_enum_by_nr(target
), level
,
3327 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3328 _mesa_lookup_enum_by_nr(format
),
3329 _mesa_lookup_enum_by_nr(type
), pixels
);
3331 /* check target (proxies not allowed) */
3332 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3333 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3334 dims
, _mesa_lookup_enum_by_nr(target
));
3338 if (ctx
->NewState
& _NEW_PIXEL
)
3339 _mesa_update_state(ctx
);
3341 if (texsubimage_error_check(ctx
, dims
, target
, level
,
3342 xoffset
, yoffset
, zoffset
,
3343 width
, height
, depth
, format
, type
)) {
3344 return; /* error was detected */
3347 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3349 _mesa_lock_texture(ctx
, texObj
);
3351 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3353 if (width
> 0 && height
> 0 && depth
> 0) {
3354 /* If we have a border, offset=-1 is legal. Bias by border width. */
3357 if (target
!= GL_TEXTURE_2D_ARRAY
)
3358 zoffset
+= texImage
->Border
;
3361 if (target
!= GL_TEXTURE_1D_ARRAY
)
3362 yoffset
+= texImage
->Border
;
3365 xoffset
+= texImage
->Border
;
3368 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3369 xoffset
, yoffset
, zoffset
,
3370 width
, height
, depth
,
3371 format
, type
, pixels
, &ctx
->Unpack
);
3373 check_gen_mipmap(ctx
, target
, texObj
, level
);
3375 ctx
->NewState
|= _NEW_TEXTURE
;
3378 _mesa_unlock_texture(ctx
, texObj
);
3383 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3384 GLint xoffset
, GLsizei width
,
3385 GLenum format
, GLenum type
,
3386 const GLvoid
*pixels
)
3388 GET_CURRENT_CONTEXT(ctx
);
3389 texsubimage(ctx
, 1, target
, level
,
3392 format
, type
, pixels
);
3397 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3398 GLint xoffset
, GLint yoffset
,
3399 GLsizei width
, GLsizei height
,
3400 GLenum format
, GLenum type
,
3401 const GLvoid
*pixels
)
3403 GET_CURRENT_CONTEXT(ctx
);
3404 texsubimage(ctx
, 2, target
, level
,
3405 xoffset
, yoffset
, 0,
3407 format
, type
, pixels
);
3413 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3414 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3415 GLsizei width
, GLsizei height
, GLsizei depth
,
3416 GLenum format
, GLenum type
,
3417 const GLvoid
*pixels
)
3419 GET_CURRENT_CONTEXT(ctx
);
3420 texsubimage(ctx
, 3, target
, level
,
3421 xoffset
, yoffset
, zoffset
,
3422 width
, height
, depth
,
3423 format
, type
, pixels
);
3429 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3430 * from. This depends on whether the texture contains color or depth values.
3432 static struct gl_renderbuffer
*
3433 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3435 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3436 /* reading from depth/stencil buffer */
3437 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3440 /* copying from color buffer */
3441 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3446 copytexsubimage_by_slice(struct gl_context
*ctx
,
3447 struct gl_texture_image
*texImage
,
3449 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3450 struct gl_renderbuffer
*rb
,
3452 GLsizei width
, GLsizei height
)
3454 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
3457 /* For 1D arrays, we copy each scanline of the source rectangle into the
3460 assert(zoffset
== 0);
3462 for (slice
= 0; slice
< height
; slice
++) {
3463 assert(yoffset
+ slice
< texImage
->Height
);
3464 ctx
->Driver
.CopyTexSubImage(ctx
, 2, texImage
,
3465 xoffset
, 0, yoffset
+ slice
,
3466 rb
, x
, y
+ slice
, width
, 1);
3469 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3470 xoffset
, yoffset
, zoffset
,
3471 rb
, x
, y
, width
, height
);
3477 * Implement the glCopyTexImage1/2D() functions.
3480 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3481 GLenum target
, GLint level
, GLenum internalFormat
,
3482 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3484 struct gl_texture_object
*texObj
;
3485 struct gl_texture_image
*texImage
;
3486 const GLuint face
= _mesa_tex_target_to_face(target
);
3487 gl_format texFormat
;
3489 FLUSH_VERTICES(ctx
, 0);
3491 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3492 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3494 _mesa_lookup_enum_by_nr(target
), level
,
3495 _mesa_lookup_enum_by_nr(internalFormat
),
3496 x
, y
, width
, height
, border
);
3498 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3499 _mesa_update_state(ctx
);
3501 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3502 width
, height
, border
))
3505 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3507 _mesa_error(ctx
, GL_INVALID_VALUE
,
3508 "glCopyTexImage%uD(invalid width or height)", dims
);
3512 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3515 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3516 internalFormat
, GL_NONE
, GL_NONE
);
3517 assert(texFormat
!= MESA_FORMAT_NONE
);
3519 if (!ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3521 width
, height
, 1, border
)) {
3522 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3523 "glCopyTexImage%uD(image too large)", dims
);
3527 if (border
&& ctx
->Const
.StripTextureBorder
) {
3529 width
-= border
* 2;
3532 height
-= border
* 2;
3537 _mesa_lock_texture(ctx
, texObj
);
3539 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3542 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3545 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3547 /* Free old texture image */
3548 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3550 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3551 border
, internalFormat
, texFormat
);
3553 if (width
&& height
) {
3554 /* Allocate texture memory (no pixel data yet) */
3555 ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
);
3557 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3559 struct gl_renderbuffer
*srcRb
=
3560 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3562 copytexsubimage_by_slice(ctx
, texImage
, dims
,
3564 srcRb
, srcX
, srcY
, width
, height
);
3567 check_gen_mipmap(ctx
, target
, texObj
, level
);
3570 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3572 _mesa_dirty_texobj(ctx
, texObj
);
3575 _mesa_unlock_texture(ctx
, texObj
);
3581 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3582 GLenum internalFormat
,
3584 GLsizei width
, GLint border
)
3586 GET_CURRENT_CONTEXT(ctx
);
3587 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3593 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3594 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3597 GET_CURRENT_CONTEXT(ctx
);
3598 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3599 x
, y
, width
, height
, border
);
3605 * Implementation for glCopyTexSubImage1/2/3D() functions.
3608 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3609 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3610 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3612 struct gl_texture_object
*texObj
;
3613 struct gl_texture_image
*texImage
;
3615 FLUSH_VERTICES(ctx
, 0);
3617 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3618 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3620 _mesa_lookup_enum_by_nr(target
),
3621 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3623 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3624 _mesa_update_state(ctx
);
3626 if (copytexsubimage_error_check(ctx
, dims
, target
, level
,
3627 xoffset
, yoffset
, zoffset
, width
, height
)) {
3631 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3633 _mesa_lock_texture(ctx
, texObj
);
3635 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3637 /* If we have a border, offset=-1 is legal. Bias by border width. */
3640 if (target
!= GL_TEXTURE_2D_ARRAY
)
3641 zoffset
+= texImage
->Border
;
3644 if (target
!= GL_TEXTURE_1D_ARRAY
)
3645 yoffset
+= texImage
->Border
;
3648 xoffset
+= texImage
->Border
;
3651 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3653 struct gl_renderbuffer
*srcRb
=
3654 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3656 copytexsubimage_by_slice(ctx
, texImage
, dims
,
3657 xoffset
, yoffset
, zoffset
,
3658 srcRb
, x
, y
, width
, height
);
3660 check_gen_mipmap(ctx
, target
, texObj
, level
);
3662 ctx
->NewState
|= _NEW_TEXTURE
;
3665 _mesa_unlock_texture(ctx
, texObj
);
3670 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3671 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3673 GET_CURRENT_CONTEXT(ctx
);
3674 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3680 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3681 GLint xoffset
, GLint yoffset
,
3682 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3684 GET_CURRENT_CONTEXT(ctx
);
3685 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3692 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3693 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3694 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3696 GET_CURRENT_CONTEXT(ctx
);
3697 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3698 x
, y
, width
, height
);
3704 /**********************************************************************/
3705 /****** Compressed Textures ******/
3706 /**********************************************************************/
3710 * Error checking for glCompressedTexSubImage[123]D().
3711 * \return error code or GL_NO_ERROR.
3714 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dims
,
3715 GLenum target
, GLint level
,
3716 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3717 GLsizei width
, GLsizei height
, GLsizei depth
,
3718 GLenum format
, GLsizei imageSize
)
3720 struct gl_texture_object
*texObj
;
3721 struct gl_texture_image
*texImage
;
3729 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3730 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3731 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3732 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3733 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3734 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3738 targetOK
= GL_FALSE
;
3743 targetOK
= (target
== GL_TEXTURE_2D_ARRAY
);
3747 /* no 1D compressed textures at this time */
3748 targetOK
= GL_FALSE
;
3753 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target)",
3758 /* this will catch any invalid compressed format token */
3759 if (!_mesa_is_compressed_format(ctx
, format
)) {
3760 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(format)",
3765 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
3766 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(level=%d)",
3771 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3772 if (expectedSize
!= imageSize
) {
3773 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(size=%d)",
3778 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3780 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3781 "glCompressedTexSubImage%uD()", dims
);
3785 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3787 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3788 "glCompressedTexSubImage%uD(invalid texture image)", dims
);
3792 if ((GLint
) format
!= texImage
->InternalFormat
) {
3793 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3794 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3798 if (compressedteximage_only_format(ctx
, format
)) {
3799 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3800 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3805 if (error_check_subtexture_dimensions(ctx
, "glCompressedTexSubImage", dims
,
3806 texImage
, xoffset
, yoffset
, zoffset
,
3807 width
, height
, depth
)) {
3816 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
3817 GLenum internalFormat
, GLsizei width
,
3818 GLint border
, GLsizei imageSize
,
3821 GET_CURRENT_CONTEXT(ctx
);
3822 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3823 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3828 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
3829 GLenum internalFormat
, GLsizei width
,
3830 GLsizei height
, GLint border
, GLsizei imageSize
,
3833 GET_CURRENT_CONTEXT(ctx
);
3834 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3835 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3840 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
3841 GLenum internalFormat
, GLsizei width
,
3842 GLsizei height
, GLsizei depth
, GLint border
,
3843 GLsizei imageSize
, const GLvoid
*data
)
3845 GET_CURRENT_CONTEXT(ctx
);
3846 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3847 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3852 * Common helper for glCompressedTexSubImage1/2/3D().
3855 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3856 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3857 GLsizei width
, GLsizei height
, GLsizei depth
,
3858 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3860 struct gl_texture_object
*texObj
;
3861 struct gl_texture_image
*texImage
;
3862 GET_CURRENT_CONTEXT(ctx
);
3863 FLUSH_VERTICES(ctx
, 0);
3865 if (compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3866 xoffset
, yoffset
, zoffset
,
3867 width
, height
, depth
,
3868 format
, imageSize
)) {
3872 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3874 _mesa_lock_texture(ctx
, texObj
);
3876 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3879 if (width
> 0 && height
> 0 && depth
> 0) {
3880 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3881 xoffset
, yoffset
, zoffset
,
3882 width
, height
, depth
,
3883 format
, imageSize
, data
);
3885 check_gen_mipmap(ctx
, target
, texObj
, level
);
3887 ctx
->NewState
|= _NEW_TEXTURE
;
3890 _mesa_unlock_texture(ctx
, texObj
);
3895 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
3896 GLsizei width
, GLenum format
,
3897 GLsizei imageSize
, const GLvoid
*data
)
3899 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3900 format
, imageSize
, data
);
3905 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
3906 GLint yoffset
, GLsizei width
, GLsizei height
,
3907 GLenum format
, GLsizei imageSize
,
3910 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3911 width
, height
, 1, format
, imageSize
, data
);
3916 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
3917 GLint yoffset
, GLint zoffset
, GLsizei width
,
3918 GLsizei height
, GLsizei depth
, GLenum format
,
3919 GLsizei imageSize
, const GLvoid
*data
)
3921 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3922 width
, height
, depth
, format
, imageSize
, data
);
3926 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3928 switch (internalFormat
) {
3930 return MESA_FORMAT_A8
;
3932 return MESA_FORMAT_A16
;
3933 case GL_ALPHA16F_ARB
:
3934 return MESA_FORMAT_ALPHA_FLOAT16
;
3935 case GL_ALPHA32F_ARB
:
3936 return MESA_FORMAT_ALPHA_FLOAT32
;
3937 case GL_ALPHA8I_EXT
:
3938 return MESA_FORMAT_ALPHA_INT8
;
3939 case GL_ALPHA16I_EXT
:
3940 return MESA_FORMAT_ALPHA_INT16
;
3941 case GL_ALPHA32I_EXT
:
3942 return MESA_FORMAT_ALPHA_INT32
;
3943 case GL_ALPHA8UI_EXT
:
3944 return MESA_FORMAT_ALPHA_UINT8
;
3945 case GL_ALPHA16UI_EXT
:
3946 return MESA_FORMAT_ALPHA_UINT16
;
3947 case GL_ALPHA32UI_EXT
:
3948 return MESA_FORMAT_ALPHA_UINT32
;
3950 return MESA_FORMAT_L8
;
3951 case GL_LUMINANCE16
:
3952 return MESA_FORMAT_L16
;
3953 case GL_LUMINANCE16F_ARB
:
3954 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3955 case GL_LUMINANCE32F_ARB
:
3956 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3957 case GL_LUMINANCE8I_EXT
:
3958 return MESA_FORMAT_LUMINANCE_INT8
;
3959 case GL_LUMINANCE16I_EXT
:
3960 return MESA_FORMAT_LUMINANCE_INT16
;
3961 case GL_LUMINANCE32I_EXT
:
3962 return MESA_FORMAT_LUMINANCE_INT32
;
3963 case GL_LUMINANCE8UI_EXT
:
3964 return MESA_FORMAT_LUMINANCE_UINT8
;
3965 case GL_LUMINANCE16UI_EXT
:
3966 return MESA_FORMAT_LUMINANCE_UINT16
;
3967 case GL_LUMINANCE32UI_EXT
:
3968 return MESA_FORMAT_LUMINANCE_UINT32
;
3969 case GL_LUMINANCE8_ALPHA8
:
3970 return MESA_FORMAT_AL88
;
3971 case GL_LUMINANCE16_ALPHA16
:
3972 return MESA_FORMAT_AL1616
;
3973 case GL_LUMINANCE_ALPHA16F_ARB
:
3974 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3975 case GL_LUMINANCE_ALPHA32F_ARB
:
3976 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3977 case GL_LUMINANCE_ALPHA8I_EXT
:
3978 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3979 case GL_LUMINANCE_ALPHA16I_EXT
:
3980 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3981 case GL_LUMINANCE_ALPHA32I_EXT
:
3982 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3983 case GL_LUMINANCE_ALPHA8UI_EXT
:
3984 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3985 case GL_LUMINANCE_ALPHA16UI_EXT
:
3986 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3987 case GL_LUMINANCE_ALPHA32UI_EXT
:
3988 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3990 return MESA_FORMAT_I8
;
3991 case GL_INTENSITY16
:
3992 return MESA_FORMAT_I16
;
3993 case GL_INTENSITY16F_ARB
:
3994 return MESA_FORMAT_INTENSITY_FLOAT16
;
3995 case GL_INTENSITY32F_ARB
:
3996 return MESA_FORMAT_INTENSITY_FLOAT32
;
3997 case GL_INTENSITY8I_EXT
:
3998 return MESA_FORMAT_INTENSITY_INT8
;
3999 case GL_INTENSITY16I_EXT
:
4000 return MESA_FORMAT_INTENSITY_INT16
;
4001 case GL_INTENSITY32I_EXT
:
4002 return MESA_FORMAT_INTENSITY_INT32
;
4003 case GL_INTENSITY8UI_EXT
:
4004 return MESA_FORMAT_INTENSITY_UINT8
;
4005 case GL_INTENSITY16UI_EXT
:
4006 return MESA_FORMAT_INTENSITY_UINT16
;
4007 case GL_INTENSITY32UI_EXT
:
4008 return MESA_FORMAT_INTENSITY_UINT32
;
4010 return MESA_FORMAT_RGBA8888_REV
;
4012 return MESA_FORMAT_RGBA_16
;
4013 case GL_RGBA16F_ARB
:
4014 return MESA_FORMAT_RGBA_FLOAT16
;
4015 case GL_RGBA32F_ARB
:
4016 return MESA_FORMAT_RGBA_FLOAT32
;
4018 return MESA_FORMAT_RGBA_INT8
;
4019 case GL_RGBA16I_EXT
:
4020 return MESA_FORMAT_RGBA_INT16
;
4021 case GL_RGBA32I_EXT
:
4022 return MESA_FORMAT_RGBA_INT32
;
4023 case GL_RGBA8UI_EXT
:
4024 return MESA_FORMAT_RGBA_UINT8
;
4025 case GL_RGBA16UI_EXT
:
4026 return MESA_FORMAT_RGBA_UINT16
;
4027 case GL_RGBA32UI_EXT
:
4028 return MESA_FORMAT_RGBA_UINT32
;
4031 return MESA_FORMAT_GR88
;
4033 return MESA_FORMAT_GR1616
;
4035 return MESA_FORMAT_RG_FLOAT16
;
4037 return MESA_FORMAT_RG_FLOAT32
;
4039 return MESA_FORMAT_RG_INT8
;
4041 return MESA_FORMAT_RG_INT16
;
4043 return MESA_FORMAT_RG_INT32
;
4045 return MESA_FORMAT_RG_UINT8
;
4047 return MESA_FORMAT_RG_UINT16
;
4049 return MESA_FORMAT_RG_UINT32
;
4052 return MESA_FORMAT_R8
;
4054 return MESA_FORMAT_R16
;
4056 return MESA_FORMAT_R_FLOAT16
;
4058 return MESA_FORMAT_R_FLOAT32
;
4060 return MESA_FORMAT_R_INT8
;
4062 return MESA_FORMAT_R_INT16
;
4064 return MESA_FORMAT_R_INT32
;
4066 return MESA_FORMAT_R_UINT8
;
4068 return MESA_FORMAT_R_UINT16
;
4070 return MESA_FORMAT_R_UINT32
;
4073 return MESA_FORMAT_RGB_FLOAT32
;
4075 return MESA_FORMAT_RGB_UINT32
;
4077 return MESA_FORMAT_RGB_INT32
;
4080 return MESA_FORMAT_NONE
;
4086 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
4088 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
4091 if (format
== MESA_FORMAT_NONE
)
4092 return MESA_FORMAT_NONE
;
4094 datatype
= _mesa_get_format_datatype(format
);
4095 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
4096 return MESA_FORMAT_NONE
;
4098 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
4099 return MESA_FORMAT_NONE
;
4101 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
4102 * any mention of R/RG formats, but they appear in the GL 3.1 core
4105 if (ctx
->Version
<= 30) {
4106 GLenum base_format
= _mesa_get_format_base_format(format
);
4108 if (base_format
== GL_R
|| base_format
== GL_RG
)
4109 return MESA_FORMAT_NONE
;
4112 if (!ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
4113 GLenum base_format
= _mesa_get_format_base_format(format
);
4114 if (base_format
== GL_RGB
)
4115 return MESA_FORMAT_NONE
;
4122 texbufferrange(struct gl_context
*ctx
, GLenum target
, GLenum internalFormat
,
4123 struct gl_buffer_object
*bufObj
,
4124 GLintptr offset
, GLsizeiptr size
)
4126 struct gl_texture_object
*texObj
;
4129 FLUSH_VERTICES(ctx
, 0);
4131 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
4132 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
4136 format
= validate_texbuffer_format(ctx
, internalFormat
);
4137 if (format
== MESA_FORMAT_NONE
) {
4138 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
4143 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4145 _mesa_lock_texture(ctx
, texObj
);
4147 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4148 texObj
->BufferObjectFormat
= internalFormat
;
4149 texObj
->_BufferObjectFormat
= format
;
4150 texObj
->BufferOffset
= offset
;
4151 texObj
->BufferSize
= size
;
4153 _mesa_unlock_texture(ctx
, texObj
);
4157 /** GL_ARB_texture_buffer_object */
4159 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
4161 struct gl_buffer_object
*bufObj
;
4163 GET_CURRENT_CONTEXT(ctx
);
4165 /* NOTE: ARB_texture_buffer_object has interactions with
4166 * the compatibility profile that are not implemented.
4168 if (!(ctx
->API
== API_OPENGL_CORE
&&
4169 ctx
->Extensions
.ARB_texture_buffer_object
)) {
4170 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
4174 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
4175 if (!bufObj
&& buffer
) {
4176 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
4180 texbufferrange(ctx
, target
, internalFormat
, bufObj
, 0, buffer
? -1 : 0);
4184 /** GL_ARB_texture_buffer_range */
4186 _mesa_TexBufferRange(GLenum target
, GLenum internalFormat
, GLuint buffer
,
4187 GLintptr offset
, GLsizeiptr size
)
4189 struct gl_buffer_object
*bufObj
;
4191 GET_CURRENT_CONTEXT(ctx
);
4193 if (!(ctx
->API
== API_OPENGL_CORE
&&
4194 ctx
->Extensions
.ARB_texture_buffer_range
)) {
4195 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBufferRange");
4199 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
4203 (offset
+ size
) > bufObj
->Size
) {
4204 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexBufferRange");
4207 if (offset
% ctx
->Const
.TextureBufferOffsetAlignment
) {
4208 _mesa_error(ctx
, GL_INVALID_VALUE
,
4209 "glTexBufferRange(invalid offset alignment)");
4212 } else if (buffer
) {
4213 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBufferRange(buffer %u)",
4221 texbufferrange(ctx
, target
, internalFormat
, bufObj
, offset
, size
);
4226 is_renderable_texture_format(struct gl_context
*ctx
, GLenum internalformat
)
4228 /* Everything that is allowed for renderbuffers,
4229 * except for a base format of GL_STENCIL_INDEX.
4231 GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalformat
);
4232 return baseFormat
!= 0 && baseFormat
!= GL_STENCIL_INDEX
;
4236 /** GL_ARB_texture_multisample */
4238 check_multisample_target(GLuint dims
, GLenum target
)
4241 case GL_TEXTURE_2D_MULTISAMPLE
:
4242 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
4245 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
4246 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
4256 teximagemultisample(GLuint dims
, GLenum target
, GLsizei samples
,
4257 GLint internalformat
, GLsizei width
, GLsizei height
,
4258 GLsizei depth
, GLboolean fixedsamplelocations
,
4259 GLboolean immutable
, const char *func
)
4261 struct gl_texture_object
*texObj
;
4262 struct gl_texture_image
*texImage
;
4263 GLboolean sizeOK
, dimensionsOK
;
4264 gl_format texFormat
;
4265 GLenum sample_count_error
;
4267 GET_CURRENT_CONTEXT(ctx
);
4269 if (!(ctx
->Extensions
.ARB_texture_multisample
4270 && _mesa_is_desktop_gl(ctx
))) {
4271 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(unsupported)", func
);
4275 if (!check_multisample_target(dims
, target
)) {
4276 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
4280 /* check that the specified internalformat is color/depth/stencil-renderable;
4281 * refer GL3.1 spec 4.4.4
4284 if (immutable
&& !_mesa_is_legal_tex_storage_format(ctx
, internalformat
)) {
4285 _mesa_error(ctx
, GL_INVALID_ENUM
,
4286 "%s(internalformat=%s not legal for immutable-format)",
4287 func
, _mesa_lookup_enum_by_nr(internalformat
));
4291 if (!is_renderable_texture_format(ctx
, internalformat
)) {
4292 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4293 "%s(internalformat=%s)",
4294 func
, _mesa_lookup_enum_by_nr(internalformat
));
4298 sample_count_error
= _mesa_check_sample_count(ctx
, target
,
4299 internalformat
, samples
);
4300 if (sample_count_error
!= GL_NO_ERROR
) {
4301 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
4305 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4307 if (immutable
&& (!texObj
|| (texObj
->Name
== 0))) {
4308 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4309 "%s(texture object 0)",
4314 texImage
= _mesa_get_tex_image(ctx
, texObj
, 0, 0);
4316 if (texImage
== NULL
) {
4317 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", func
);
4321 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, 0,
4322 internalformat
, GL_NONE
, GL_NONE
);
4323 assert(texFormat
!= MESA_FORMAT_NONE
);
4325 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, 0,
4326 width
, height
, depth
, 0);
4328 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, target
, 0, texFormat
,
4329 width
, height
, depth
, 0);
4331 if (_mesa_is_proxy_texture(target
)) {
4332 if (dimensionsOK
&& sizeOK
) {
4333 _mesa_init_teximage_fields(ctx
, texImage
,
4334 width
, height
, depth
, 0, internalformat
, texFormat
);
4335 texImage
->NumSamples
= samples
;
4336 texImage
->FixedSampleLocations
= fixedsamplelocations
;
4339 /* clear all image fields */
4340 _mesa_init_teximage_fields(ctx
, texImage
,
4341 0, 0, 0, 0, GL_NONE
, MESA_FORMAT_NONE
);
4345 if (!dimensionsOK
) {
4346 _mesa_error(ctx
, GL_INVALID_VALUE
,
4347 "%s(invalid width or height)", func
);
4352 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
4353 "%s(texture too large)", func
);
4357 /* Check if texObj->Immutable is set */
4358 if (texObj
->Immutable
) {
4359 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(immutable)", func
);
4363 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
4365 _mesa_init_teximage_fields(ctx
, texImage
,
4366 width
, height
, depth
, 0, internalformat
, texFormat
);
4368 texImage
->NumSamples
= samples
;
4369 texImage
->FixedSampleLocations
= fixedsamplelocations
;
4371 if (width
> 0 && height
> 0 && depth
> 0) {
4372 if (!ctx
->Driver
.AllocTextureStorage(ctx
, texObj
, 1,
4373 width
, height
, depth
)) {
4374 /* tidy up the texture image state. strictly speaking,
4375 * we're allowed to just leave this in whatever state we
4376 * like, but being tidy is good.
4378 _mesa_init_teximage_fields(ctx
, texImage
,
4379 0, 0, 0, 0, GL_NONE
, MESA_FORMAT_NONE
);
4383 texObj
->Immutable
= immutable
;
4384 _mesa_update_fbo_texture(ctx
, texObj
, 0, 0);
4390 _mesa_TexImage2DMultisample(GLenum target
, GLsizei samples
,
4391 GLint internalformat
, GLsizei width
,
4392 GLsizei height
, GLboolean fixedsamplelocations
)
4394 teximagemultisample(2, target
, samples
, internalformat
,
4395 width
, height
, 1, fixedsamplelocations
, GL_FALSE
,
4396 "glTexImage2DMultisample");
4401 _mesa_TexImage3DMultisample(GLenum target
, GLsizei samples
,
4402 GLint internalformat
, GLsizei width
,
4403 GLsizei height
, GLsizei depth
,
4404 GLboolean fixedsamplelocations
)
4406 teximagemultisample(3, target
, samples
, internalformat
,
4407 width
, height
, depth
, fixedsamplelocations
, GL_FALSE
,
4408 "glTexImage3DMultisample");
4413 _mesa_TexStorage2DMultisample(GLenum target
, GLsizei samples
,
4414 GLenum internalformat
, GLsizei width
,
4415 GLsizei height
, GLboolean fixedsamplelocations
)
4417 teximagemultisample(2, target
, samples
, internalformat
,
4418 width
, height
, 1, fixedsamplelocations
, GL_TRUE
,
4419 "glTexStorage2DMultisample");
4424 _mesa_TexStorage3DMultisample(GLenum target
, GLsizei samples
,
4425 GLenum internalformat
, GLsizei width
,
4426 GLsizei height
, GLsizei depth
,
4427 GLboolean fixedsamplelocations
)
4429 teximagemultisample(3, target
, samples
, internalformat
,
4430 width
, height
, depth
, fixedsamplelocations
, GL_TRUE
,
4431 "glTexStorage3DMultisample");