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 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Texture image-related functions.
33 #include "bufferobj.h"
37 #include "framebuffer.h"
42 #include "mfeatures.h"
44 #include "texcompress.h"
45 #include "texcompress_cpal.h"
50 #include "glformats.h"
54 * State changes which we care about for glCopyTex[Sub]Image() calls.
55 * In particular, we care about pixel transfer state and buffer state
56 * (such as glReadBuffer to make sure we read from the right renderbuffer).
58 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
63 * Return the simple base format for a given internal texture format.
64 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
66 * \param ctx GL context.
67 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
69 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
70 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
72 * This is the format which is used during texture application (i.e. the
73 * texture format and env mode determine the arithmetic used.
76 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
)
78 switch (internalFormat
) {
84 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_ALPHA
: -1;
91 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE
: -1;
93 case GL_LUMINANCE_ALPHA
:
94 case GL_LUMINANCE4_ALPHA4
:
95 case GL_LUMINANCE6_ALPHA2
:
96 case GL_LUMINANCE8_ALPHA8
:
97 case GL_LUMINANCE12_ALPHA4
:
98 case GL_LUMINANCE12_ALPHA12
:
99 case GL_LUMINANCE16_ALPHA16
:
100 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE_ALPHA
: -1;
106 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_INTENSITY
: -1;
108 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGB
: -1;
119 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGBA
: -1;
133 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
135 if (_mesa_is_gles(ctx
)) {
136 switch (internalFormat
) {
144 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
145 switch (internalFormat
) {
153 if (ctx
->Extensions
.ARB_depth_texture
) {
154 switch (internalFormat
) {
155 case GL_DEPTH_COMPONENT
:
156 case GL_DEPTH_COMPONENT16
:
157 case GL_DEPTH_COMPONENT24
:
158 case GL_DEPTH_COMPONENT32
:
159 return GL_DEPTH_COMPONENT
;
165 switch (internalFormat
) {
166 case GL_COMPRESSED_ALPHA
:
168 case GL_COMPRESSED_LUMINANCE
:
170 case GL_COMPRESSED_LUMINANCE_ALPHA
:
171 return GL_LUMINANCE_ALPHA
;
172 case GL_COMPRESSED_INTENSITY
:
174 case GL_COMPRESSED_RGB
:
176 case GL_COMPRESSED_RGBA
:
182 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
183 switch (internalFormat
) {
184 case GL_COMPRESSED_RGB_FXT1_3DFX
:
186 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
193 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
194 switch (internalFormat
) {
195 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
197 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
198 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
199 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
206 /* GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE && GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE */
207 if (ctx
->API
== API_OPENGLES2
&&
208 ctx
->Extensions
.ANGLE_texture_compression_dxt
) {
209 switch (internalFormat
) {
210 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
211 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
218 if (_mesa_is_desktop_gl(ctx
)
219 && ctx
->Extensions
.ANGLE_texture_compression_dxt
) {
220 switch (internalFormat
) {
232 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
233 if (internalFormat
== GL_YCBCR_MESA
)
234 return GL_YCBCR_MESA
;
237 if (ctx
->Extensions
.ARB_texture_float
) {
238 switch (internalFormat
) {
239 case GL_ALPHA16F_ARB
:
240 case GL_ALPHA32F_ARB
:
248 case GL_INTENSITY16F_ARB
:
249 case GL_INTENSITY32F_ARB
:
251 case GL_LUMINANCE16F_ARB
:
252 case GL_LUMINANCE32F_ARB
:
254 case GL_LUMINANCE_ALPHA16F_ARB
:
255 case GL_LUMINANCE_ALPHA32F_ARB
:
256 return GL_LUMINANCE_ALPHA
;
262 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
263 switch (internalFormat
) {
272 if (ctx
->Extensions
.EXT_texture_snorm
) {
273 switch (internalFormat
) {
288 case GL_RGBA16_SNORM
:
291 case GL_ALPHA8_SNORM
:
292 case GL_ALPHA16_SNORM
:
294 case GL_LUMINANCE_SNORM
:
295 case GL_LUMINANCE8_SNORM
:
296 case GL_LUMINANCE16_SNORM
:
298 case GL_LUMINANCE_ALPHA_SNORM
:
299 case GL_LUMINANCE8_ALPHA8_SNORM
:
300 case GL_LUMINANCE16_ALPHA16_SNORM
:
301 return GL_LUMINANCE_ALPHA
;
302 case GL_INTENSITY_SNORM
:
303 case GL_INTENSITY8_SNORM
:
304 case GL_INTENSITY16_SNORM
:
311 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
312 switch (internalFormat
) {
313 case GL_DEPTH_STENCIL_EXT
:
314 case GL_DEPTH24_STENCIL8_EXT
:
315 return GL_DEPTH_STENCIL_EXT
;
321 if (ctx
->Extensions
.EXT_texture_sRGB
) {
322 switch (internalFormat
) {
325 case GL_COMPRESSED_SRGB_EXT
:
326 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
328 case GL_SRGB_ALPHA_EXT
:
329 case GL_SRGB8_ALPHA8_EXT
:
330 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
331 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
332 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
333 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
335 case GL_SLUMINANCE_ALPHA_EXT
:
336 case GL_SLUMINANCE8_ALPHA8_EXT
:
337 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
338 return GL_LUMINANCE_ALPHA
;
339 case GL_SLUMINANCE_EXT
:
340 case GL_SLUMINANCE8_EXT
:
341 case GL_COMPRESSED_SLUMINANCE_EXT
:
348 if (ctx
->Version
>= 30 ||
349 ctx
->Extensions
.EXT_texture_integer
) {
350 switch (internalFormat
) {
352 case GL_RGBA16UI_EXT
:
353 case GL_RGBA32UI_EXT
:
369 if (ctx
->Extensions
.EXT_texture_integer
) {
370 switch (internalFormat
) {
371 case GL_ALPHA8UI_EXT
:
372 case GL_ALPHA16UI_EXT
:
373 case GL_ALPHA32UI_EXT
:
375 case GL_ALPHA16I_EXT
:
376 case GL_ALPHA32I_EXT
:
378 case GL_INTENSITY8UI_EXT
:
379 case GL_INTENSITY16UI_EXT
:
380 case GL_INTENSITY32UI_EXT
:
381 case GL_INTENSITY8I_EXT
:
382 case GL_INTENSITY16I_EXT
:
383 case GL_INTENSITY32I_EXT
:
385 case GL_LUMINANCE8UI_EXT
:
386 case GL_LUMINANCE16UI_EXT
:
387 case GL_LUMINANCE32UI_EXT
:
388 case GL_LUMINANCE8I_EXT
:
389 case GL_LUMINANCE16I_EXT
:
390 case GL_LUMINANCE32I_EXT
:
392 case GL_LUMINANCE_ALPHA8UI_EXT
:
393 case GL_LUMINANCE_ALPHA16UI_EXT
:
394 case GL_LUMINANCE_ALPHA32UI_EXT
:
395 case GL_LUMINANCE_ALPHA8I_EXT
:
396 case GL_LUMINANCE_ALPHA16I_EXT
:
397 case GL_LUMINANCE_ALPHA32I_EXT
:
398 return GL_LUMINANCE_ALPHA
;
404 if (ctx
->Extensions
.ARB_texture_rg
) {
405 switch (internalFormat
) {
407 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
409 if (!ctx
->Extensions
.ARB_half_float_pixel
)
413 if (!ctx
->Extensions
.ARB_texture_float
)
422 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
428 case GL_COMPRESSED_RED
:
432 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
434 if (!ctx
->Extensions
.ARB_half_float_pixel
)
438 if (!ctx
->Extensions
.ARB_texture_float
)
447 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
453 case GL_COMPRESSED_RG
:
460 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
461 switch (internalFormat
) {
469 if (ctx
->Extensions
.EXT_packed_float
) {
470 switch (internalFormat
) {
471 case GL_R11F_G11F_B10F_EXT
:
478 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
479 switch (internalFormat
) {
480 case GL_DEPTH_COMPONENT32F
:
481 return GL_DEPTH_COMPONENT
;
482 case GL_DEPTH32F_STENCIL8
:
483 return GL_DEPTH_STENCIL
;
489 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
490 switch (internalFormat
) {
491 case GL_COMPRESSED_RED_RGTC1
:
492 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
494 case GL_COMPRESSED_RG_RGTC2
:
495 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
502 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
503 switch (internalFormat
) {
504 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
505 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
507 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
508 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
509 return GL_LUMINANCE_ALPHA
;
515 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
516 switch (internalFormat
) {
517 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
518 return GL_LUMINANCE_ALPHA
;
524 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
525 switch (internalFormat
) {
526 case GL_ETC1_RGB8_OES
:
533 if (_mesa_is_gles3(ctx
)) {
534 switch (internalFormat
) {
535 case GL_COMPRESSED_RGB8_ETC2
:
536 case GL_COMPRESSED_SRGB8_ETC2
:
538 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
539 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
540 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
541 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
543 case GL_COMPRESSED_R11_EAC
:
544 case GL_COMPRESSED_SIGNED_R11_EAC
:
546 case GL_COMPRESSED_RG11_EAC
:
547 case GL_COMPRESSED_SIGNED_RG11_EAC
:
554 if (ctx
->API
== API_OPENGLES
) {
555 switch (internalFormat
) {
556 case GL_PALETTE4_RGB8_OES
:
557 case GL_PALETTE4_R5_G6_B5_OES
:
558 case GL_PALETTE8_RGB8_OES
:
559 case GL_PALETTE8_R5_G6_B5_OES
:
561 case GL_PALETTE4_RGBA8_OES
:
562 case GL_PALETTE8_RGB5_A1_OES
:
563 case GL_PALETTE4_RGBA4_OES
:
564 case GL_PALETTE4_RGB5_A1_OES
:
565 case GL_PALETTE8_RGBA8_OES
:
566 case GL_PALETTE8_RGBA4_OES
:
573 return -1; /* error */
578 * For cube map faces, return a face index in [0,5].
579 * For other targets return 0;
582 _mesa_tex_target_to_face(GLenum target
)
584 if (_mesa_is_cube_face(target
))
585 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
593 * Install gl_texture_image in a gl_texture_object according to the target
594 * and level parameters.
596 * \param tObj texture object.
597 * \param target texture target.
598 * \param level image level.
599 * \param texImage texture image.
602 set_tex_image(struct gl_texture_object
*tObj
,
603 GLenum target
, GLint level
,
604 struct gl_texture_image
*texImage
)
606 const GLuint face
= _mesa_tex_target_to_face(target
);
610 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
613 tObj
->Image
[face
][level
] = texImage
;
615 /* Set the 'back' pointer */
616 texImage
->TexObject
= tObj
;
617 texImage
->Level
= level
;
618 texImage
->Face
= face
;
623 * Allocate a texture image structure.
625 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
628 * \return a pointer to gl_texture_image struct with all fields initialized to
631 struct gl_texture_image
*
632 _mesa_new_texture_image( struct gl_context
*ctx
)
635 return CALLOC_STRUCT(gl_texture_image
);
640 * Free a gl_texture_image and associated data.
641 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
643 * \param texImage texture image.
645 * Free the texture image structure and the associated image data.
648 _mesa_delete_texture_image(struct gl_context
*ctx
,
649 struct gl_texture_image
*texImage
)
651 /* Free texImage->Data and/or any other driver-specific texture
654 ASSERT(ctx
->Driver
.FreeTextureImageBuffer
);
655 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
661 * Test if a target is a proxy target.
663 * \param target texture target.
665 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
668 _mesa_is_proxy_texture(GLenum target
)
671 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
672 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
674 assert(NUM_TEXTURE_TARGETS
== 8 + 2);
676 return (target
== GL_PROXY_TEXTURE_1D
||
677 target
== GL_PROXY_TEXTURE_2D
||
678 target
== GL_PROXY_TEXTURE_3D
||
679 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
680 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
||
681 target
== GL_PROXY_TEXTURE_1D_ARRAY_EXT
||
682 target
== GL_PROXY_TEXTURE_2D_ARRAY_EXT
||
683 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
);
688 * Return the proxy target which corresponds to the given texture target
691 _mesa_get_proxy_target(GLenum target
)
695 case GL_PROXY_TEXTURE_1D
:
696 return GL_PROXY_TEXTURE_1D
;
698 case GL_PROXY_TEXTURE_2D
:
699 return GL_PROXY_TEXTURE_2D
;
701 case GL_PROXY_TEXTURE_3D
:
702 return GL_PROXY_TEXTURE_3D
;
703 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
704 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
705 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
706 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
707 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
708 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
709 case GL_TEXTURE_CUBE_MAP_ARB
:
710 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
711 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
712 case GL_TEXTURE_RECTANGLE_NV
:
713 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
714 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
715 case GL_TEXTURE_1D_ARRAY_EXT
:
716 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
717 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
718 case GL_TEXTURE_2D_ARRAY_EXT
:
719 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
720 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
721 case GL_TEXTURE_CUBE_MAP_ARRAY
:
722 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
723 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
;
725 _mesa_problem(NULL
, "unexpected target in _mesa_get_proxy_target()");
732 * Get the texture object that corresponds to the target of the given
733 * texture unit. The target should have already been checked for validity.
735 * \param ctx GL context.
736 * \param texUnit texture unit.
737 * \param target texture target.
739 * \return pointer to the texture object on success, or NULL on failure.
741 struct gl_texture_object
*
742 _mesa_select_tex_object(struct gl_context
*ctx
,
743 const struct gl_texture_unit
*texUnit
,
746 const GLboolean arrayTex
= (ctx
->Extensions
.MESA_texture_array
||
747 ctx
->Extensions
.EXT_texture_array
);
751 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
752 case GL_PROXY_TEXTURE_1D
:
753 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
755 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
756 case GL_PROXY_TEXTURE_2D
:
757 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
759 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
760 case GL_PROXY_TEXTURE_3D
:
761 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
762 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
763 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
764 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
765 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
766 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
767 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
768 case GL_TEXTURE_CUBE_MAP_ARB
:
769 return ctx
->Extensions
.ARB_texture_cube_map
770 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
771 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
772 return ctx
->Extensions
.ARB_texture_cube_map
773 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
774 case GL_TEXTURE_CUBE_MAP_ARRAY
:
775 return ctx
->Extensions
.ARB_texture_cube_map_array
776 ? texUnit
->CurrentTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
777 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
778 return ctx
->Extensions
.ARB_texture_cube_map_array
779 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
780 case GL_TEXTURE_RECTANGLE_NV
:
781 return ctx
->Extensions
.NV_texture_rectangle
782 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
783 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
784 return ctx
->Extensions
.NV_texture_rectangle
785 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
786 case GL_TEXTURE_1D_ARRAY_EXT
:
787 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
788 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
789 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
790 case GL_TEXTURE_2D_ARRAY_EXT
:
791 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
792 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
793 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
794 case GL_TEXTURE_BUFFER
:
795 return ctx
->API
== API_OPENGL_CORE
&&
796 ctx
->Extensions
.ARB_texture_buffer_object
?
797 texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
798 case GL_TEXTURE_EXTERNAL_OES
:
799 return ctx
->Extensions
.OES_EGL_image_external
800 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
802 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
809 * Return pointer to texture object for given target on current texture unit.
811 struct gl_texture_object
*
812 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
814 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
815 return _mesa_select_tex_object(ctx
, texUnit
, target
);
820 * Get a texture image pointer from a texture object, given a texture
821 * target and mipmap level. The target and level parameters should
822 * have already been error-checked.
824 * \param ctx GL context.
825 * \param texObj texture unit.
826 * \param target texture target.
827 * \param level image level.
829 * \return pointer to the texture image structure, or NULL on failure.
831 struct gl_texture_image
*
832 _mesa_select_tex_image(struct gl_context
*ctx
,
833 const struct gl_texture_object
*texObj
,
834 GLenum target
, GLint level
)
836 const GLuint face
= _mesa_tex_target_to_face(target
);
840 ASSERT(level
< MAX_TEXTURE_LEVELS
);
842 return texObj
->Image
[face
][level
];
847 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
848 * it and install it. Only return NULL if passed a bad parameter or run
851 struct gl_texture_image
*
852 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
853 GLenum target
, GLint level
)
855 struct gl_texture_image
*texImage
;
860 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
862 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
864 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
868 set_tex_image(texObj
, target
, level
, texImage
);
876 * Return pointer to the specified proxy texture image.
877 * Note that proxy textures are per-context, not per-texture unit.
878 * \return pointer to texture image or NULL if invalid target, invalid
879 * level, or out of memory.
881 static struct gl_texture_image
*
882 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
884 struct gl_texture_image
*texImage
;
891 case GL_PROXY_TEXTURE_1D
:
892 if (level
>= ctx
->Const
.MaxTextureLevels
)
894 texIndex
= TEXTURE_1D_INDEX
;
896 case GL_PROXY_TEXTURE_2D
:
897 if (level
>= ctx
->Const
.MaxTextureLevels
)
899 texIndex
= TEXTURE_2D_INDEX
;
901 case GL_PROXY_TEXTURE_3D
:
902 if (level
>= ctx
->Const
.Max3DTextureLevels
)
904 texIndex
= TEXTURE_3D_INDEX
;
906 case GL_PROXY_TEXTURE_CUBE_MAP
:
907 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
909 texIndex
= TEXTURE_CUBE_INDEX
;
911 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
914 texIndex
= TEXTURE_RECT_INDEX
;
916 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
917 if (level
>= ctx
->Const
.MaxTextureLevels
)
919 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
921 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
922 if (level
>= ctx
->Const
.MaxTextureLevels
)
924 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
926 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
927 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
929 texIndex
= TEXTURE_CUBE_ARRAY_INDEX
;
935 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
937 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
939 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
942 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
943 /* Set the 'back' pointer */
944 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
951 * Get the maximum number of allowed mipmap levels.
953 * \param ctx GL context.
954 * \param target texture target.
956 * \return the maximum number of allowed mipmap levels for the given
957 * texture target, or zero if passed a bad target.
962 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
966 case GL_PROXY_TEXTURE_1D
:
968 case GL_PROXY_TEXTURE_2D
:
969 return ctx
->Const
.MaxTextureLevels
;
971 case GL_PROXY_TEXTURE_3D
:
972 return ctx
->Const
.Max3DTextureLevels
;
973 case GL_TEXTURE_CUBE_MAP
:
974 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
975 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
976 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
977 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
978 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
979 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
980 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
981 return ctx
->Extensions
.ARB_texture_cube_map
982 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
983 case GL_TEXTURE_RECTANGLE_NV
:
984 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
985 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
986 case GL_TEXTURE_1D_ARRAY_EXT
:
987 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
988 case GL_TEXTURE_2D_ARRAY_EXT
:
989 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
990 return (ctx
->Extensions
.MESA_texture_array
||
991 ctx
->Extensions
.EXT_texture_array
)
992 ? ctx
->Const
.MaxTextureLevels
: 0;
993 case GL_TEXTURE_CUBE_MAP_ARRAY
:
994 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
995 return ctx
->Extensions
.ARB_texture_cube_map_array
996 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
997 case GL_TEXTURE_BUFFER
:
998 return ctx
->API
== API_OPENGL_CORE
&&
999 ctx
->Extensions
.ARB_texture_buffer_object
? 1 : 0;
1000 case GL_TEXTURE_EXTERNAL_OES
:
1003 return 0; /* bad target */
1009 * Return number of dimensions per mipmap level for the given texture target.
1012 _mesa_get_texture_dimensions(GLenum target
)
1016 case GL_PROXY_TEXTURE_1D
:
1019 case GL_TEXTURE_RECTANGLE
:
1020 case GL_TEXTURE_CUBE_MAP
:
1021 case GL_PROXY_TEXTURE_2D
:
1022 case GL_PROXY_TEXTURE_RECTANGLE
:
1023 case GL_PROXY_TEXTURE_CUBE_MAP
:
1024 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1025 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1026 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1027 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1028 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1029 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1030 case GL_TEXTURE_1D_ARRAY
:
1031 case GL_PROXY_TEXTURE_1D_ARRAY
:
1032 case GL_TEXTURE_EXTERNAL_OES
:
1035 case GL_PROXY_TEXTURE_3D
:
1036 case GL_TEXTURE_2D_ARRAY
:
1037 case GL_PROXY_TEXTURE_2D_ARRAY
:
1038 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1039 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1041 case GL_TEXTURE_BUFFER
:
1044 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
1052 * Return the maximum number of mipmap levels for the given target
1053 * and the dimensions.
1054 * The dimensions are expected not to include the border.
1057 _mesa_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
1064 case GL_TEXTURE_1D_ARRAY
:
1067 case GL_TEXTURE_CUBE_MAP
:
1068 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1069 ASSERT(width
== height
);
1073 case GL_TEXTURE_2D_ARRAY
:
1074 size
= MAX2(width
, height
);
1077 size
= MAX3(width
, height
, depth
);
1079 case GL_TEXTURE_RECTANGLE
:
1080 case GL_TEXTURE_EXTERNAL_OES
:
1087 return _mesa_logbase2(size
) + 1;
1091 #if 000 /* not used anymore */
1093 * glTexImage[123]D can accept a NULL image pointer. In this case we
1094 * create a texture image with unspecified image contents per the OpenGL
1098 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
1100 const GLint components
= _mesa_components_in_format(format
);
1101 const GLint numPixels
= width
* height
* depth
;
1102 GLubyte
*data
= (GLubyte
*) malloc(numPixels
* components
* sizeof(GLubyte
));
1106 * Let's see if anyone finds this. If glTexImage2D() is called with
1107 * a NULL image pointer then load the texture image with something
1108 * interesting instead of leaving it indeterminate.
1111 static const char message
[8][32] = {
1112 " X X XXXXX XXX X ",
1113 " XX XX X X X X X ",
1115 " X X XXXX XXX XXXXX ",
1118 " X X XXXXX XXX X X ",
1122 GLubyte
*imgPtr
= data
;
1124 for (h
= 0; h
< depth
; h
++) {
1125 for (i
= 0; i
< height
; i
++) {
1126 GLint srcRow
= 7 - (i
% 8);
1127 for (j
= 0; j
< width
; j
++) {
1128 GLint srcCol
= j
% 32;
1129 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1130 for (k
= 0; k
< components
; k
++) {
1146 * Set the size and format-related fields of a gl_texture_image struct
1147 * to zero. This is used when a proxy texture test fails.
1150 clear_teximage_fields(struct gl_texture_image
*img
)
1153 img
->_BaseFormat
= 0;
1154 img
->InternalFormat
= 0;
1163 img
->HeightLog2
= 0;
1165 img
->TexFormat
= MESA_FORMAT_NONE
;
1170 * Initialize basic fields of the gl_texture_image struct.
1172 * \param ctx GL context.
1173 * \param img texture image structure to be initialized.
1174 * \param width image width.
1175 * \param height image height.
1176 * \param depth image depth.
1177 * \param border image border.
1178 * \param internalFormat internal format.
1179 * \param format the actual hardware format (one of MESA_FORMAT_*)
1181 * Fills in the fields of \p img with the given information.
1182 * Note: width, height and depth include the border.
1185 _mesa_init_teximage_fields(struct gl_context
*ctx
,
1186 struct gl_texture_image
*img
,
1187 GLsizei width
, GLsizei height
, GLsizei depth
,
1188 GLint border
, GLenum internalFormat
,
1194 ASSERT(height
>= 0);
1197 target
= img
->TexObject
->Target
;
1198 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1199 ASSERT(img
->_BaseFormat
> 0);
1200 img
->InternalFormat
= internalFormat
;
1201 img
->Border
= border
;
1203 img
->Height
= height
;
1206 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1207 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1211 case GL_TEXTURE_BUFFER
:
1212 case GL_PROXY_TEXTURE_1D
:
1217 img
->HeightLog2
= 0;
1224 case GL_TEXTURE_1D_ARRAY
:
1225 case GL_PROXY_TEXTURE_1D_ARRAY
:
1226 img
->Height2
= height
; /* no border */
1227 img
->HeightLog2
= 0; /* not used */
1235 case GL_TEXTURE_RECTANGLE
:
1236 case GL_TEXTURE_CUBE_MAP
:
1237 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1238 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1239 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1240 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1241 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1242 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1243 case GL_TEXTURE_EXTERNAL_OES
:
1244 case GL_PROXY_TEXTURE_2D
:
1245 case GL_PROXY_TEXTURE_RECTANGLE
:
1246 case GL_PROXY_TEXTURE_CUBE_MAP
:
1247 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1248 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1255 case GL_TEXTURE_2D_ARRAY
:
1256 case GL_PROXY_TEXTURE_2D_ARRAY
:
1257 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1258 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1259 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1260 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1261 img
->Depth2
= depth
; /* no border */
1262 img
->DepthLog2
= 0; /* not used */
1265 case GL_PROXY_TEXTURE_3D
:
1266 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1267 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1268 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1269 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1272 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
1277 _mesa_get_tex_max_num_levels(target
,
1278 img
->Width2
, img
->Height2
, img
->Depth2
);
1279 img
->TexFormat
= format
;
1284 * Free and clear fields of the gl_texture_image struct.
1286 * \param ctx GL context.
1287 * \param texImage texture image structure to be cleared.
1289 * After the call, \p texImage will have no data associated with it. Its
1290 * fields are cleared so that its parent object will test incomplete.
1293 _mesa_clear_texture_image(struct gl_context
*ctx
,
1294 struct gl_texture_image
*texImage
)
1296 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1297 clear_teximage_fields(texImage
);
1302 * Check the width, height, depth and border of a texture image are legal.
1303 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1305 * The target and level parameters will have already been validated.
1306 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1309 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
1310 GLint level
, GLint width
, GLint height
,
1311 GLint depth
, GLint border
)
1317 case GL_PROXY_TEXTURE_1D
:
1318 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
1319 maxSize
>>= level
; /* level size */
1320 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1322 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1323 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1329 case GL_PROXY_TEXTURE_2D
:
1330 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1332 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1334 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1336 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1337 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1339 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1345 case GL_PROXY_TEXTURE_3D
:
1346 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1348 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1350 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1352 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1354 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1355 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1357 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1359 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1364 case GL_TEXTURE_RECTANGLE_NV
:
1365 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1368 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1369 if (width
< 0 || width
> maxSize
)
1371 if (height
< 0 || height
> maxSize
)
1375 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1376 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1377 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1378 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1379 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1380 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1381 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1382 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1384 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1386 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1388 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1389 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1391 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1396 case GL_TEXTURE_1D_ARRAY_EXT
:
1397 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1398 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1400 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1402 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1404 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1405 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1410 case GL_TEXTURE_2D_ARRAY_EXT
:
1411 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1412 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1414 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1416 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1418 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1420 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1421 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1423 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1428 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1429 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1430 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1431 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1433 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1435 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1437 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1439 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1440 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1442 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1447 _mesa_problem(ctx
, "Invalid target in _mesa_legal_texture_dimensions()");
1454 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1455 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1456 * \param destImage the destination texture image.
1457 * \return GL_TRUE if error found, GL_FALSE otherwise.
1460 error_check_subtexture_dimensions(struct gl_context
*ctx
,
1461 const char *function
, GLuint dims
,
1462 const struct gl_texture_image
*destImage
,
1463 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1464 GLsizei subWidth
, GLsizei subHeight
,
1467 const GLenum target
= destImage
->TexObject
->Target
;
1472 _mesa_error(ctx
, GL_INVALID_VALUE
,
1473 "%s%dD(width=%d)", function
, dims
, subWidth
);
1477 if (dims
> 1 && subHeight
< 0) {
1478 _mesa_error(ctx
, GL_INVALID_VALUE
,
1479 "%s%dD(height=%d)", function
, dims
, subHeight
);
1483 if (dims
> 2 && subDepth
< 0) {
1484 _mesa_error(ctx
, GL_INVALID_VALUE
,
1485 "%s%dD(depth=%d)", function
, dims
, subDepth
);
1489 /* check xoffset and width */
1490 if (xoffset
< -destImage
->Border
) {
1491 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(xoffset)",
1496 if (xoffset
+ subWidth
> destImage
->Width
) {
1497 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(xoffset+width)",
1502 /* check yoffset and height */
1504 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destImage
->Border
;
1505 if (yoffset
< -yBorder
) {
1506 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(yoffset)",
1510 if (yoffset
+ subHeight
> destImage
->Height
) {
1511 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(yoffset+height)",
1517 /* check zoffset and depth */
1519 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destImage
->Border
;
1520 if (zoffset
< -zBorder
) {
1521 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s3D(zoffset)", function
);
1524 if (zoffset
+ subDepth
> (GLint
) destImage
->Depth
) {
1525 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s3D(zoffset+depth)", function
);
1531 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1532 * compressed texture images can be updated. But, that restriction may be
1533 * relaxed for particular compressed formats. At this time, all the
1534 * compressed formats supported by Mesa allow sub-textures to be updated
1535 * along compressed block boundaries.
1537 _mesa_get_format_block_size(destImage
->TexFormat
, &bw
, &bh
);
1539 if (bw
!= 1 || bh
!= 1) {
1540 /* offset must be multiple of block size */
1541 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1542 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1543 "%s%dD(xoffset = %d, yoffset = %d)",
1544 function
, dims
, xoffset
, yoffset
);
1548 /* size must be multiple of bw by bh or equal to whole texture size */
1549 if ((subWidth
% bw
!= 0) && subWidth
!= destImage
->Width
) {
1550 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1551 "%s%dD(width = %d)", function
, dims
, subWidth
);
1555 if ((subHeight
% bh
!= 0) && subHeight
!= destImage
->Height
) {
1556 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1557 "%s%dD(height = %d)", function
, dims
, subHeight
);
1569 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1570 * specific texture image size checks.
1572 * A hardware driver might override this function if, for example, the
1573 * max 3D texture size is 512x512x64 (i.e. not a cube).
1575 * Note that width, height, depth == 0 is not an error. However, a
1576 * texture with zero width/height/depth will be considered "incomplete"
1577 * and texturing will effectively be disabled.
1579 * \param target any texture target/type
1580 * \param level as passed to glTexImage
1581 * \param format the MESA_FORMAT_x for the tex image
1582 * \param width as passed to glTexImage
1583 * \param height as passed to glTexImage
1584 * \param depth as passed to glTexImage
1585 * \param border as passed to glTexImage
1586 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1589 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1591 GLint width
, GLint height
, GLint depth
, GLint border
)
1593 /* We just check if the image size is less than MaxTextureMbytes.
1594 * Some drivers may do more specific checks.
1596 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1597 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1598 mbytes
*= _mesa_num_tex_faces(target
);
1599 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1604 * Return true if the format is only valid for glCompressedTexImage.
1607 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1610 case GL_ETC1_RGB8_OES
:
1611 case GL_PALETTE4_RGB8_OES
:
1612 case GL_PALETTE4_RGBA8_OES
:
1613 case GL_PALETTE4_R5_G6_B5_OES
:
1614 case GL_PALETTE4_RGBA4_OES
:
1615 case GL_PALETTE4_RGB5_A1_OES
:
1616 case GL_PALETTE8_RGB8_OES
:
1617 case GL_PALETTE8_RGBA8_OES
:
1618 case GL_PALETTE8_R5_G6_B5_OES
:
1619 case GL_PALETTE8_RGBA4_OES
:
1620 case GL_PALETTE8_RGB5_A1_OES
:
1629 * Helper function to determine whether a target and specific compression
1630 * format are supported.
1633 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1636 (void) intFormat
; /* not used yet */
1640 case GL_PROXY_TEXTURE_2D
:
1641 return GL_TRUE
; /* true for any compressed format so far */
1642 case GL_PROXY_TEXTURE_CUBE_MAP
:
1643 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1644 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1645 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1646 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1647 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1648 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1649 return ctx
->Extensions
.ARB_texture_cube_map
;
1650 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1651 case GL_TEXTURE_2D_ARRAY_EXT
:
1652 return (ctx
->Extensions
.MESA_texture_array
||
1653 ctx
->Extensions
.EXT_texture_array
);
1654 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1655 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1656 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1664 * Check if the given texture target value is legal for a
1665 * glTexImage1/2/3D call.
1668 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1674 case GL_PROXY_TEXTURE_1D
:
1675 return _mesa_is_desktop_gl(ctx
);
1683 case GL_PROXY_TEXTURE_2D
:
1684 return _mesa_is_desktop_gl(ctx
);
1685 case GL_PROXY_TEXTURE_CUBE_MAP
:
1686 return _mesa_is_desktop_gl(ctx
)
1687 && ctx
->Extensions
.ARB_texture_cube_map
;
1688 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1689 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1690 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1691 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1692 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1693 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1694 return ctx
->Extensions
.ARB_texture_cube_map
;
1695 case GL_TEXTURE_RECTANGLE_NV
:
1696 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1697 return _mesa_is_desktop_gl(ctx
)
1698 && ctx
->Extensions
.NV_texture_rectangle
;
1699 case GL_TEXTURE_1D_ARRAY_EXT
:
1700 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1701 return _mesa_is_desktop_gl(ctx
)
1702 && (ctx
->Extensions
.MESA_texture_array
||
1703 ctx
->Extensions
.EXT_texture_array
);
1711 case GL_PROXY_TEXTURE_3D
:
1712 return _mesa_is_desktop_gl(ctx
);
1713 case GL_TEXTURE_2D_ARRAY_EXT
:
1714 return (_mesa_is_desktop_gl(ctx
)
1715 && (ctx
->Extensions
.MESA_texture_array
||
1716 ctx
->Extensions
.EXT_texture_array
))
1717 || _mesa_is_gles3(ctx
);
1718 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1719 return _mesa_is_desktop_gl(ctx
)
1720 && (ctx
->Extensions
.MESA_texture_array
||
1721 ctx
->Extensions
.EXT_texture_array
);
1722 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1723 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1724 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1729 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1736 * Check if the given texture target value is legal for a
1737 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1738 * The difference compared to legal_teximage_target() above is that
1739 * proxy targets are not supported.
1742 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1746 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1751 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1752 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1753 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1754 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1755 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1756 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1757 return ctx
->Extensions
.ARB_texture_cube_map
;
1758 case GL_TEXTURE_RECTANGLE_NV
:
1759 return _mesa_is_desktop_gl(ctx
)
1760 && ctx
->Extensions
.NV_texture_rectangle
;
1761 case GL_TEXTURE_1D_ARRAY_EXT
:
1762 return _mesa_is_desktop_gl(ctx
)
1763 && (ctx
->Extensions
.MESA_texture_array
||
1764 ctx
->Extensions
.EXT_texture_array
);
1772 case GL_TEXTURE_2D_ARRAY_EXT
:
1773 return (_mesa_is_desktop_gl(ctx
)
1774 && (ctx
->Extensions
.MESA_texture_array
||
1775 ctx
->Extensions
.EXT_texture_array
))
1776 || _mesa_is_gles3(ctx
);
1777 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1778 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1779 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1784 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1792 * Helper function to determine if a texture object is mutable (in terms
1793 * of GL_ARB_texture_storage).
1796 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1798 if (ctx
->Extensions
.ARB_texture_storage
) {
1799 struct gl_texture_object
*texObj
=
1800 _mesa_get_current_tex_object(ctx
, target
);
1801 return !texObj
->Immutable
;
1808 * Return expected size of a compressed texture.
1811 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1814 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1815 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1820 * Test the glTexImage[123]D() parameters for errors.
1822 * \param ctx GL context.
1823 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1824 * \param target texture target given by the user (already validated).
1825 * \param level image level given by the user.
1826 * \param internalFormat internal format given by the user.
1827 * \param format pixel data format given by the user.
1828 * \param type pixel data type given by the user.
1829 * \param width image width given by the user.
1830 * \param height image height given by the user.
1831 * \param depth image depth given by the user.
1832 * \param border image border given by the user.
1834 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1836 * Verifies each of the parameters against the constants specified in
1837 * __struct gl_contextRec::Const and the supported extensions, and according
1838 * to the OpenGL specification.
1839 * Note that we don't fully error-check the width, height, depth values
1840 * here. That's done in _mesa_legal_texture_dimensions() which is used
1841 * by several other GL entrypoints. Plus, texture dims have a special
1842 * interaction with proxy textures.
1845 texture_error_check( struct gl_context
*ctx
,
1846 GLuint dimensions
, GLenum target
,
1847 GLint level
, GLint internalFormat
,
1848 GLenum format
, GLenum type
,
1849 GLint width
, GLint height
,
1850 GLint depth
, GLint border
)
1852 GLboolean colorFormat
;
1855 /* Even though there are no color-index textures, we still have to support
1856 * uploading color-index data and remapping it to RGB via the
1857 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1859 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1861 /* Note: for proxy textures, some error conditions immediately generate
1862 * a GL error in the usual way. But others do not generate a GL error.
1863 * Instead, they cause the width, height, depth, format fields of the
1864 * texture image to be zeroed-out. The GL spec seems to indicate that the
1865 * zero-out behaviour is only used in cases related to memory allocation.
1869 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1870 _mesa_error(ctx
, GL_INVALID_VALUE
,
1871 "glTexImage%dD(level=%d)", dimensions
, level
);
1876 if (border
< 0 || border
> 1 ||
1877 ((ctx
->API
!= API_OPENGL_COMPAT
||
1878 target
== GL_TEXTURE_RECTANGLE_NV
||
1879 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1880 _mesa_error(ctx
, GL_INVALID_VALUE
,
1881 "glTexImage%dD(border=%d)", dimensions
, border
);
1885 if (width
< 0 || height
< 0 || depth
< 0) {
1886 _mesa_error(ctx
, GL_INVALID_VALUE
,
1887 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1891 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1892 * combinations of format, internalFormat, and type that can be used.
1893 * Formats and types that require additional extensions (e.g., GL_FLOAT
1894 * requires GL_OES_texture_float) are filtered elsewhere.
1897 if (_mesa_is_gles(ctx
)) {
1898 if (_mesa_is_gles3(ctx
)) {
1899 err
= _mesa_es3_error_check_format_and_type(format
, type
,
1902 if (format
!= internalFormat
) {
1903 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1904 "glTexImage%dD(format = %s, internalFormat = %s)",
1906 _mesa_lookup_enum_by_nr(format
),
1907 _mesa_lookup_enum_by_nr(internalFormat
));
1911 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1913 if (err
!= GL_NO_ERROR
) {
1914 _mesa_error(ctx
, err
,
1915 "glTexImage%dD(format = %s, type = %s, internalFormat = %s)",
1917 _mesa_lookup_enum_by_nr(format
),
1918 _mesa_lookup_enum_by_nr(type
),
1919 _mesa_lookup_enum_by_nr(internalFormat
));
1924 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
1925 _mesa_is_cube_face(target
)) && width
!= height
) {
1926 _mesa_error(ctx
, GL_INVALID_VALUE
,
1927 "glTexImage2D(cube width != height)");
1931 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
||
1932 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) && width
!= height
) {
1933 _mesa_error(ctx
, GL_INVALID_VALUE
,
1934 "glTexImage3D(cube array width != height)");
1938 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
||
1939 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) && (depth
% 6)) {
1940 _mesa_error(ctx
, GL_INVALID_VALUE
,
1941 "glTexImage3D(cube array depth not multiple of 6)");
1945 /* Check internalFormat */
1946 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1947 _mesa_error(ctx
, GL_INVALID_VALUE
,
1948 "glTexImage%dD(internalFormat=%s)",
1949 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1953 /* Check incoming image format and type */
1954 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1955 if (err
!= GL_NO_ERROR
) {
1956 _mesa_error(ctx
, err
,
1957 "glTexImage%dD(incompatible format = %s, type = %s)",
1958 dimensions
, _mesa_lookup_enum_by_nr(format
),
1959 _mesa_lookup_enum_by_nr(type
));
1963 /* make sure internal format and format basically agree */
1964 colorFormat
= _mesa_is_color_format(format
);
1965 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1966 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1967 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1968 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1969 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1970 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1971 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
1972 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
),
1973 _mesa_lookup_enum_by_nr(format
));
1977 /* additional checks for ycbcr textures */
1978 if (internalFormat
== GL_YCBCR_MESA
) {
1979 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1980 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1981 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1983 _mesa_snprintf(message
, sizeof(message
),
1984 "glTexImage%dD(format/type YCBCR mismatch)",
1986 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1987 return GL_TRUE
; /* error */
1989 if (target
!= GL_TEXTURE_2D
&&
1990 target
!= GL_PROXY_TEXTURE_2D
&&
1991 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1992 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1993 _mesa_error(ctx
, GL_INVALID_ENUM
,
1994 "glTexImage%dD(bad target for YCbCr texture)",
2000 _mesa_snprintf(message
, sizeof(message
),
2001 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
2002 dimensions
, border
);
2003 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
2008 /* additional checks for depth textures */
2009 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
2010 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_STENCIL
) {
2011 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
2012 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
2013 if (target
!= GL_TEXTURE_1D
&&
2014 target
!= GL_PROXY_TEXTURE_1D
&&
2015 target
!= GL_TEXTURE_2D
&&
2016 target
!= GL_PROXY_TEXTURE_2D
&&
2017 target
!= GL_TEXTURE_1D_ARRAY
&&
2018 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
2019 target
!= GL_TEXTURE_2D_ARRAY
&&
2020 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
2021 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
2022 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
2023 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
2024 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
2025 || (ctx
->API
== API_OPENGLES2
&& ctx
->Extensions
.OES_depth_texture_cube_map
))) &&
2026 !((target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
2027 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
) &&
2028 ctx
->Extensions
.ARB_texture_cube_map_array
)) {
2029 _mesa_error(ctx
, GL_INVALID_ENUM
,
2030 "glTexImage%dD(bad target for depth texture)",
2036 /* additional checks for compressed textures */
2037 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2038 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2039 _mesa_error(ctx
, GL_INVALID_ENUM
,
2040 "glTexImage%dD(target can't be compressed)", dimensions
);
2043 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2044 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2045 "glTexImage%dD(no compression for format)", dimensions
);
2049 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2050 "glTexImage%dD(border!=0)", dimensions
);
2055 /* additional checks for integer textures */
2056 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
2057 (_mesa_is_enum_format_integer(format
) !=
2058 _mesa_is_enum_format_integer(internalFormat
))) {
2059 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2060 "glTexImage%dD(integer/non-integer format mismatch)",
2065 if (!mutable_tex_object(ctx
, target
)) {
2066 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2067 "glTexImage%dD(immutable texture)", dimensions
);
2071 /* if we get here, the parameters are OK */
2077 * Error checking for glCompressedTexImage[123]D().
2078 * Note that the width, height and depth values are not fully error checked
2080 * \return GL_TRUE if a error is found, GL_FALSE otherwise
2083 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
2084 GLenum target
, GLint level
,
2085 GLenum internalFormat
, GLsizei width
,
2086 GLsizei height
, GLsizei depth
, GLint border
,
2089 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
2091 GLenum error
= GL_NO_ERROR
;
2092 char *reason
= ""; /* no error */
2094 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2096 error
= GL_INVALID_ENUM
;
2100 /* This will detect any invalid internalFormat value */
2101 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
2102 reason
= "internalFormat";
2103 error
= GL_INVALID_ENUM
;
2107 switch (internalFormat
) {
2108 case GL_PALETTE4_RGB8_OES
:
2109 case GL_PALETTE4_RGBA8_OES
:
2110 case GL_PALETTE4_R5_G6_B5_OES
:
2111 case GL_PALETTE4_RGBA4_OES
:
2112 case GL_PALETTE4_RGB5_A1_OES
:
2113 case GL_PALETTE8_RGB8_OES
:
2114 case GL_PALETTE8_RGBA8_OES
:
2115 case GL_PALETTE8_R5_G6_B5_OES
:
2116 case GL_PALETTE8_RGBA4_OES
:
2117 case GL_PALETTE8_RGB5_A1_OES
:
2118 /* check level (note that level should be zero or less!) */
2119 if (level
> 0 || level
< -maxLevels
) {
2121 error
= GL_INVALID_VALUE
;
2125 if (dimensions
!= 2) {
2126 reason
= "compressed paletted textures must be 2D";
2127 error
= GL_INVALID_OPERATION
;
2131 /* Figure out the expected texture size (in bytes). This will be
2132 * checked against the actual size later.
2134 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
2137 /* This is for the benefit of the TestProxyTexImage below. It expects
2138 * level to be non-negative. OES_compressed_paletted_texture uses a
2139 * weird mechanism where the level specified to glCompressedTexImage2D
2140 * is -(n-1) number of levels in the texture, and the data specifies the
2141 * complete mipmap stack. This is done to ensure the palette is the
2142 * same for all levels.
2149 if (level
< 0 || level
>= maxLevels
) {
2151 error
= GL_INVALID_VALUE
;
2155 /* Figure out the expected texture size (in bytes). This will be
2156 * checked against the actual size later.
2158 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2162 /* This should really never fail */
2163 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2164 reason
= "internalFormat";
2165 error
= GL_INVALID_ENUM
;
2169 /* No compressed formats support borders at this time */
2171 reason
= "border != 0";
2172 error
= GL_INVALID_VALUE
;
2176 /* For cube map, width must equal height */
2177 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2178 _mesa_is_cube_face(target
)) && width
!= height
) {
2179 reason
= "width != height";
2180 error
= GL_INVALID_VALUE
;
2184 /* check image size in bytes */
2185 if (expectedSize
!= imageSize
) {
2186 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2187 * if <imageSize> is not consistent with the format, dimensions, and
2188 * contents of the specified image.
2190 reason
= "imageSize inconsistant with width/height/format";
2191 error
= GL_INVALID_VALUE
;
2195 if (!mutable_tex_object(ctx
, target
)) {
2196 reason
= "immutable texture";
2197 error
= GL_INVALID_OPERATION
;
2204 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2211 * Test glTexSubImage[123]D() parameters for errors.
2213 * \param ctx GL context.
2214 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2215 * \param target texture target given by the user (already validated)
2216 * \param level image level given by the user.
2217 * \param xoffset sub-image x offset given by the user.
2218 * \param yoffset sub-image y offset given by the user.
2219 * \param zoffset sub-image z offset given by the user.
2220 * \param format pixel data format given by the user.
2221 * \param type pixel data type given by the user.
2222 * \param width image width given by the user.
2223 * \param height image height given by the user.
2224 * \param depth image depth given by the user.
2226 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2228 * Verifies each of the parameters against the constants specified in
2229 * __struct gl_contextRec::Const and the supported extensions, and according
2230 * to the OpenGL specification.
2233 texsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2234 GLenum target
, GLint level
,
2235 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2236 GLint width
, GLint height
, GLint depth
,
2237 GLenum format
, GLenum type
)
2239 struct gl_texture_object
*texObj
;
2240 struct gl_texture_image
*texImage
;
2243 /* check target (proxies not allowed) */
2244 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2245 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2246 dimensions
, _mesa_lookup_enum_by_nr(target
));
2251 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2252 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(level=%d)",
2257 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2258 * combinations of format and type that can be used. Formats and types
2259 * that require additional extensions (e.g., GL_FLOAT requires
2260 * GL_OES_texture_float) are filtered elsewhere.
2262 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2263 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2264 if (err
!= GL_NO_ERROR
) {
2265 _mesa_error(ctx
, err
,
2266 "glTexSubImage%dD(format = %s, type = %s)",
2268 _mesa_lookup_enum_by_nr(format
),
2269 _mesa_lookup_enum_by_nr(type
));
2274 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2275 if (err
!= GL_NO_ERROR
) {
2276 _mesa_error(ctx
, err
,
2277 "glTexSubImage%dD(incompatible format = %s, type = %s)",
2278 dimensions
, _mesa_lookup_enum_by_nr(format
),
2279 _mesa_lookup_enum_by_nr(type
));
2283 /* Get dest texture object / image pointers */
2284 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2286 /* must be out of memory */
2287 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage%dD()", dimensions
);
2291 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2293 /* non-existant texture level */
2294 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2295 "glTexSubImage%dD(invalid texture image)", dimensions
);
2299 if (error_check_subtexture_dimensions(ctx
, "glTexSubImage", dimensions
,
2300 texImage
, xoffset
, yoffset
, 0,
2301 width
, height
, 1)) {
2305 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2306 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2307 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2308 "glTexSubImage%dD(no compression for format)", dimensions
);
2313 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2314 /* both source and dest must be integer-valued, or neither */
2315 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
2316 _mesa_is_enum_format_integer(format
)) {
2317 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2318 "glTexSubImage%dD(integer/non-integer format mismatch)",
2329 * Test glCopyTexImage[12]D() parameters for errors.
2331 * \param ctx GL context.
2332 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2333 * \param target texture target given by the user.
2334 * \param level image level given by the user.
2335 * \param internalFormat internal format given by the user.
2336 * \param width image width given by the user.
2337 * \param height image height given by the user.
2338 * \param border texture border.
2340 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2342 * Verifies each of the parameters against the constants specified in
2343 * __struct gl_contextRec::Const and the supported extensions, and according
2344 * to the OpenGL specification.
2347 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2348 GLenum target
, GLint level
, GLint internalFormat
,
2349 GLint width
, GLint height
, GLint border
)
2352 GLint rb_base_format
;
2353 struct gl_renderbuffer
*rb
;
2354 GLenum rb_internal_format
;
2357 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2358 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2359 dimensions
, _mesa_lookup_enum_by_nr(target
));
2364 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2365 _mesa_error(ctx
, GL_INVALID_VALUE
,
2366 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2370 /* Check that the source buffer is complete */
2371 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2372 if (ctx
->ReadBuffer
->_Status
== 0) {
2373 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2375 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2376 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2377 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2381 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2382 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2383 "glCopyTexImage%dD(multisample FBO)",
2390 if (border
< 0 || border
> 1 ||
2391 ((ctx
->API
!= API_OPENGL_COMPAT
||
2392 target
== GL_TEXTURE_RECTANGLE_NV
||
2393 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2394 _mesa_error(ctx
, GL_INVALID_VALUE
,
2395 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2399 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
2401 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2402 "glCopyTexImage%dD(read buffer)", dimensions
);
2406 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2409 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2410 switch (internalFormat
) {
2415 case GL_LUMINANCE_ALPHA
:
2418 _mesa_error(ctx
, GL_INVALID_VALUE
,
2419 "glCopyTexImage%dD(internalFormat)", dimensions
);
2424 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2425 if (baseFormat
< 0) {
2426 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2427 "glCopyTexImage%dD(internalFormat)", dimensions
);
2431 rb_internal_format
= rb
->InternalFormat
;
2432 rb_base_format
= _mesa_base_tex_format(ctx
, rb
->InternalFormat
);
2433 if (_mesa_is_color_format(internalFormat
)) {
2434 if (rb_base_format
< 0) {
2435 _mesa_error(ctx
, GL_INVALID_VALUE
,
2436 "glCopyTexImage%dD(internalFormat)", dimensions
);
2441 if (_mesa_is_gles(ctx
)) {
2443 if (_mesa_base_format_component_count(baseFormat
) >
2444 _mesa_base_format_component_count(rb_base_format
)) {
2447 if (baseFormat
== GL_DEPTH_COMPONENT
||
2448 baseFormat
== GL_DEPTH_STENCIL
||
2449 rb_base_format
== GL_DEPTH_COMPONENT
||
2450 rb_base_format
== GL_DEPTH_STENCIL
||
2451 ((baseFormat
== GL_LUMINANCE_ALPHA
||
2452 baseFormat
== GL_ALPHA
) &&
2453 rb_base_format
!= GL_RGBA
) ||
2454 internalFormat
== GL_RGB9_E5
) {
2457 if (internalFormat
== GL_RGB9_E5
) {
2461 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2462 "glCopyTexImage%dD(internalFormat)", dimensions
);
2467 if ((_mesa_is_desktop_gl(ctx
) &&
2468 ctx
->Extensions
.ARB_framebuffer_object
) ||
2469 _mesa_is_gles3(ctx
)) {
2470 bool rb_is_srgb
= false;
2471 bool dst_is_srgb
= false;
2473 if (ctx
->Extensions
.EXT_framebuffer_sRGB
&&
2474 _mesa_get_format_color_encoding(rb
->Format
) == GL_SRGB
) {
2478 if (_mesa_get_linear_internalformat(internalFormat
) != internalFormat
) {
2482 if (rb_is_srgb
!= dst_is_srgb
) {
2483 /* Page 190 (page 211 of the PDF) in section 8.6 of the OpenGL 4.3
2484 * Core Profile spec says:
2486 * "An INVALID_OPERATION error is generated under any of the
2487 * following conditions:
2491 * - if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
2492 * for the framebuffer attachment corresponding to the read
2493 * buffer is LINEAR (see section 9.2.3) and internalformat
2494 * is one of the sRGB formats in table 8.23
2495 * - if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
2496 * for the framebuffer attachment corresponding to the read
2497 * buffer is SRGB and internalformat is not one of the sRGB
2498 * formats. in table 8.23."
2500 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2501 "glCopyTexImage%dD(srgb usage mismatch)", dimensions
);
2506 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2507 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2508 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2512 /* From the EXT_texture_integer spec:
2514 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2515 * if the texture internalformat is an integer format and the read color
2516 * buffer is not an integer format, or if the internalformat is not an
2517 * integer format and the read color buffer is an integer format."
2519 if (_mesa_is_color_format(internalFormat
)) {
2520 bool is_int
= _mesa_is_enum_format_integer(internalFormat
);
2521 bool is_rbint
= _mesa_is_enum_format_integer(rb_internal_format
);
2522 if (is_int
|| is_rbint
) {
2523 if (is_int
!= is_rbint
) {
2524 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2525 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2527 } else if (_mesa_is_gles(ctx
) &&
2528 _mesa_is_enum_format_unsigned_int(internalFormat
) !=
2529 _mesa_is_enum_format_unsigned_int(rb_internal_format
)) {
2530 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2531 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions
);
2537 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2538 _mesa_is_cube_face(target
)) && width
!= height
) {
2539 _mesa_error(ctx
, GL_INVALID_VALUE
,
2540 "glTexImage2D(cube width != height)");
2544 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2545 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2546 _mesa_error(ctx
, GL_INVALID_ENUM
,
2547 "glCopyTexImage%dD(target)", dimensions
);
2550 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2551 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2552 "glCopyTexImage%dD(no compression for format)", dimensions
);
2556 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2557 "glCopyTexImage%dD(border!=0)", dimensions
);
2562 if (!mutable_tex_object(ctx
, target
)) {
2563 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2564 "glCopyTexImage%dD(immutable texture)", dimensions
);
2568 /* if we get here, the parameters are OK */
2574 * Test glCopyTexSubImage[12]D() parameters for errors.
2575 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2578 copytexsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2579 GLenum target
, GLint level
,
2580 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2581 GLint width
, GLint height
)
2583 struct gl_texture_object
*texObj
;
2584 struct gl_texture_image
*texImage
;
2586 /* Check that the source buffer is complete */
2587 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2588 if (ctx
->ReadBuffer
->_Status
== 0) {
2589 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2591 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2592 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2593 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2597 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2598 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2599 "glCopyTexSubImage%dD(multisample FBO)",
2605 /* check target (proxies not allowed) */
2606 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2607 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2608 dimensions
, _mesa_lookup_enum_by_nr(target
));
2613 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2614 _mesa_error(ctx
, GL_INVALID_VALUE
,
2615 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2619 /* Get dest texture object / image pointers */
2620 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2622 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage%dD()", dimensions
);
2626 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2628 /* destination image does not exist */
2629 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2630 "glCopyTexSubImage%dD(invalid texture image)", dimensions
);
2634 if (error_check_subtexture_dimensions(ctx
, "glCopyTexSubImage",
2635 dimensions
, texImage
,
2636 xoffset
, yoffset
, zoffset
,
2637 width
, height
, 1)) {
2641 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2642 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2643 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2644 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2649 if (texImage
->InternalFormat
== GL_YCBCR_MESA
) {
2650 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2654 if (!_mesa_source_buffer_exists(ctx
, texImage
->_BaseFormat
)) {
2655 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2656 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2657 dimensions
, texImage
->_BaseFormat
);
2661 /* From the EXT_texture_integer spec:
2663 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2664 * if the texture internalformat is an integer format and the read color
2665 * buffer is not an integer format, or if the internalformat is not an
2666 * integer format and the read color buffer is an integer format."
2668 if (_mesa_is_color_format(texImage
->InternalFormat
)) {
2669 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2671 if (_mesa_is_format_integer_color(rb
->Format
) !=
2672 _mesa_is_format_integer_color(texImage
->TexFormat
)) {
2673 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2674 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2679 /* if we get here, the parameters are OK */
2684 /** Callback info for walking over FBO hash table */
2687 struct gl_context
*ctx
;
2688 struct gl_texture_object
*texObj
;
2694 * Check render to texture callback. Called from _mesa_HashWalk().
2697 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2699 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2700 const struct cb_info
*info
= (struct cb_info
*) userData
;
2701 struct gl_context
*ctx
= info
->ctx
;
2702 const struct gl_texture_object
*texObj
= info
->texObj
;
2703 const GLuint level
= info
->level
, face
= info
->face
;
2705 /* If this is a user-created FBO */
2706 if (_mesa_is_user_fbo(fb
)) {
2708 /* check if any of the FBO's attachments point to 'texObj' */
2709 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2710 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2711 if (att
->Type
== GL_TEXTURE
&&
2712 att
->Texture
== texObj
&&
2713 att
->TextureLevel
== level
&&
2714 att
->CubeMapFace
== face
) {
2715 ASSERT(_mesa_get_attachment_teximage(att
));
2716 /* Tell driver about the new renderbuffer texture */
2717 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2718 /* Mark fb status as indeterminate to force re-validation */
2727 * When a texture image is specified we have to check if it's bound to
2728 * any framebuffer objects (render to texture) in order to detect changes
2729 * in size or format since that effects FBO completeness.
2730 * Any FBOs rendering into the texture must be re-validated.
2733 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2734 struct gl_texture_object
*texObj
,
2735 GLuint face
, GLuint level
)
2737 /* Only check this texture if it's been marked as RenderToTexture */
2738 if (texObj
->_RenderToTexture
) {
2739 struct cb_info info
;
2741 info
.texObj
= texObj
;
2744 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2750 * If the texture object's GenerateMipmap flag is set and we've
2751 * changed the texture base level image, regenerate the rest of the
2752 * mipmap levels now.
2755 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2756 struct gl_texture_object
*texObj
, GLint level
)
2758 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2759 if (texObj
->GenerateMipmap
&&
2760 level
== texObj
->BaseLevel
&&
2761 level
< texObj
->MaxLevel
) {
2762 ASSERT(ctx
->Driver
.GenerateMipmap
);
2763 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2768 /** Debug helper: override the user-requested internal format */
2770 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2773 if (internalFormat
== GL_RGBA16F_ARB
||
2774 internalFormat
== GL_RGBA32F_ARB
) {
2775 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2778 else if (internalFormat
== GL_RGB16F_ARB
||
2779 internalFormat
== GL_RGB32F_ARB
) {
2780 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2783 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2784 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2785 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2786 return GL_LUMINANCE_ALPHA
;
2788 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2789 internalFormat
== GL_LUMINANCE32F_ARB
) {
2790 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2791 return GL_LUMINANCE
;
2793 else if (internalFormat
== GL_ALPHA16F_ARB
||
2794 internalFormat
== GL_ALPHA32F_ARB
) {
2795 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2799 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2800 internalFormat = GL_RGBA;
2804 return internalFormat
;
2807 return internalFormat
;
2813 * Choose the actual hardware format for a texture image.
2814 * Try to use the same format as the previous image level when possible.
2815 * Otherwise, ask the driver for the best format.
2816 * It's important to try to choose a consistant format for all levels
2817 * for efficient texture memory layout/allocation. In particular, this
2818 * comes up during automatic mipmap generation.
2821 _mesa_choose_texture_format(struct gl_context
*ctx
,
2822 struct gl_texture_object
*texObj
,
2823 GLenum target
, GLint level
,
2824 GLenum internalFormat
, GLenum format
, GLenum type
)
2828 /* see if we've already chosen a format for the previous level */
2830 struct gl_texture_image
*prevImage
=
2831 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2832 /* See if the prev level is defined and has an internal format which
2833 * matches the new internal format.
2836 prevImage
->Width
> 0 &&
2837 prevImage
->InternalFormat
== internalFormat
) {
2838 /* use the same format */
2839 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2840 return prevImage
->TexFormat
;
2844 /* If the application requested compression to an S3TC format but we don't
2845 * have the DTXn library, force a generic compressed format instead.
2847 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2848 const GLenum before
= internalFormat
;
2850 switch (internalFormat
) {
2851 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2852 if (!ctx
->Mesa_DXTn
)
2853 internalFormat
= GL_COMPRESSED_RGB
;
2855 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2856 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2857 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2858 if (!ctx
->Mesa_DXTn
)
2859 internalFormat
= GL_COMPRESSED_RGBA
;
2865 if (before
!= internalFormat
) {
2867 "DXT compression requested (%s), "
2868 "but libtxc_dxtn library not installed. Using %s "
2870 _mesa_lookup_enum_by_nr(before
),
2871 _mesa_lookup_enum_by_nr(internalFormat
));
2875 /* choose format from scratch */
2876 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, texObj
->Target
, internalFormat
,
2878 ASSERT(f
!= MESA_FORMAT_NONE
);
2883 * Adjust pixel unpack params and image dimensions to strip off the
2884 * one-pixel texture border.
2886 * Gallium and intel don't support texture borders. They've seldem been used
2887 * and seldom been implemented correctly anyway.
2889 * \param unpackNew returns the new pixel unpack parameters
2892 strip_texture_border(GLenum target
,
2893 GLint
*width
, GLint
*height
, GLint
*depth
,
2894 const struct gl_pixelstore_attrib
*unpack
,
2895 struct gl_pixelstore_attrib
*unpackNew
)
2901 *unpackNew
= *unpack
;
2903 if (unpackNew
->RowLength
== 0)
2904 unpackNew
->RowLength
= *width
;
2906 if (unpackNew
->ImageHeight
== 0)
2907 unpackNew
->ImageHeight
= *height
;
2909 assert(*width
>= 3);
2910 unpackNew
->SkipPixels
++; /* skip the border */
2911 *width
= *width
- 2; /* reduce the width by two border pixels */
2913 /* The min height of a texture with a border is 3 */
2914 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2915 unpackNew
->SkipRows
++; /* skip the border */
2916 *height
= *height
- 2; /* reduce the height by two border pixels */
2919 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
&& target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
2920 unpackNew
->SkipImages
++; /* skip the border */
2921 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2927 * Common code to implement all the glTexImage1D/2D/3D functions
2928 * as well as glCompressedTexImage1D/2D/3D.
2929 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2930 * \param format the user's image format (only used if !compressed)
2931 * \param type the user's image type (only used if !compressed)
2932 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2935 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2936 GLenum target
, GLint level
, GLint internalFormat
,
2937 GLsizei width
, GLsizei height
, GLsizei depth
,
2938 GLint border
, GLenum format
, GLenum type
,
2939 GLsizei imageSize
, const GLvoid
*pixels
)
2941 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2942 struct gl_pixelstore_attrib unpack_no_border
;
2943 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2944 struct gl_texture_object
*texObj
;
2945 gl_format texFormat
;
2946 GLboolean dimensionsOK
, sizeOK
;
2948 FLUSH_VERTICES(ctx
, 0);
2950 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2953 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2955 _mesa_lookup_enum_by_nr(target
), level
,
2956 _mesa_lookup_enum_by_nr(internalFormat
),
2957 width
, height
, depth
, border
, pixels
);
2960 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2962 _mesa_lookup_enum_by_nr(target
), level
,
2963 _mesa_lookup_enum_by_nr(internalFormat
),
2964 width
, height
, depth
, border
,
2965 _mesa_lookup_enum_by_nr(format
),
2966 _mesa_lookup_enum_by_nr(type
), pixels
);
2969 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2971 /* target error checking */
2972 if (!legal_teximage_target(ctx
, dims
, target
)) {
2973 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2974 func
, dims
, _mesa_lookup_enum_by_nr(target
));
2978 /* general error checking */
2980 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
2982 width
, height
, depth
,
2987 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2988 format
, type
, width
, height
, depth
, border
))
2992 /* Here we convert a cpal compressed image into a regular glTexImage2D
2993 * call by decompressing the texture. If we really want to support cpal
2994 * textures in any driver this would have to be changed.
2996 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
2997 switch (internalFormat
) {
2998 case GL_PALETTE4_RGB8_OES
:
2999 case GL_PALETTE4_RGBA8_OES
:
3000 case GL_PALETTE4_R5_G6_B5_OES
:
3001 case GL_PALETTE4_RGBA4_OES
:
3002 case GL_PALETTE4_RGB5_A1_OES
:
3003 case GL_PALETTE8_RGB8_OES
:
3004 case GL_PALETTE8_RGBA8_OES
:
3005 case GL_PALETTE8_R5_G6_B5_OES
:
3006 case GL_PALETTE8_RGBA4_OES
:
3007 case GL_PALETTE8_RGB5_A1_OES
:
3008 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
3009 width
, height
, imageSize
, pixels
);
3014 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3017 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3018 internalFormat
, format
, type
);
3019 assert(texFormat
!= MESA_FORMAT_NONE
);
3021 /* check that width, height, depth are legal for the mipmap level */
3022 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
3023 height
, depth
, border
);
3025 /* check that the texture won't take too much memory, etc */
3026 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3028 width
, height
, depth
, border
);
3030 if (_mesa_is_proxy_texture(target
)) {
3031 /* Proxy texture: just clear or set state depending on error checking */
3032 struct gl_texture_image
*texImage
=
3033 get_proxy_tex_image(ctx
, target
, level
);
3036 return; /* GL_OUT_OF_MEMORY already recorded */
3038 if (dimensionsOK
&& sizeOK
) {
3039 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
3040 border
, internalFormat
, texFormat
);
3043 clear_teximage_fields(texImage
);
3047 /* non-proxy target */
3048 const GLuint face
= _mesa_tex_target_to_face(target
);
3049 struct gl_texture_image
*texImage
;
3051 if (!dimensionsOK
) {
3052 _mesa_error(ctx
, GL_INVALID_VALUE
,
3053 "glTexImage%uD(invalid width or height or depth)",
3059 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3060 "glTexImage%uD(image too large)", dims
);
3064 /* Allow a hardware driver to just strip out the border, to provide
3065 * reliable but slightly incorrect hardware rendering instead of
3066 * rarely-tested software fallback rendering.
3068 if (border
&& ctx
->Const
.StripTextureBorder
) {
3069 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
3072 unpack
= &unpack_no_border
;
3075 if (ctx
->NewState
& _NEW_PIXEL
)
3076 _mesa_update_state(ctx
);
3078 _mesa_lock_texture(ctx
, texObj
);
3080 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3083 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3086 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3088 _mesa_init_teximage_fields(ctx
, texImage
,
3089 width
, height
, depth
,
3090 border
, internalFormat
, texFormat
);
3092 /* Give the texture to the driver. <pixels> may be null. */
3093 if (width
> 0 && height
> 0 && depth
> 0) {
3095 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3099 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
3100 type
, pixels
, unpack
);
3104 check_gen_mipmap(ctx
, target
, texObj
, level
);
3106 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3108 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3111 _mesa_unlock_texture(ctx
, texObj
);
3118 * Called from the API. Note that width includes the border.
3121 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3122 GLsizei width
, GLint border
, GLenum format
,
3123 GLenum type
, const GLvoid
*pixels
)
3125 GET_CURRENT_CONTEXT(ctx
);
3126 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3127 border
, format
, type
, 0, pixels
);
3132 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3133 GLsizei width
, GLsizei height
, GLint border
,
3134 GLenum format
, GLenum type
,
3135 const GLvoid
*pixels
)
3137 GET_CURRENT_CONTEXT(ctx
);
3138 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3139 border
, format
, type
, 0, pixels
);
3144 * Called by the API or display list executor.
3145 * Note that width and height include the border.
3148 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3149 GLsizei width
, GLsizei height
, GLsizei depth
,
3150 GLint border
, GLenum format
, GLenum type
,
3151 const GLvoid
*pixels
)
3153 GET_CURRENT_CONTEXT(ctx
);
3154 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3155 width
, height
, depth
,
3156 border
, format
, type
, 0, pixels
);
3161 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3162 GLsizei width
, GLsizei height
, GLsizei depth
,
3163 GLint border
, GLenum format
, GLenum type
,
3164 const GLvoid
*pixels
)
3166 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3167 depth
, border
, format
, type
, pixels
);
3172 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3174 struct gl_texture_object
*texObj
;
3175 struct gl_texture_image
*texImage
;
3177 GET_CURRENT_CONTEXT(ctx
);
3178 FLUSH_VERTICES(ctx
, 0);
3182 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3184 case GL_TEXTURE_EXTERNAL_OES
:
3185 valid_target
= ctx
->Extensions
.OES_EGL_image_external
;
3188 valid_target
= false;
3192 if (!valid_target
) {
3193 _mesa_error(ctx
, GL_INVALID_ENUM
,
3194 "glEGLImageTargetTexture2D(target=%d)", target
);
3198 if (ctx
->NewState
& _NEW_PIXEL
)
3199 _mesa_update_state(ctx
);
3201 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3202 _mesa_lock_texture(ctx
, texObj
);
3204 if (texObj
->Immutable
) {
3205 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3206 "glEGLImageTargetTexture2D(texture is immutable)");
3207 _mesa_unlock_texture(ctx
, texObj
);
3211 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3213 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3215 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3217 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3218 texObj
, texImage
, image
);
3220 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3222 _mesa_unlock_texture(ctx
, texObj
);
3229 * Implement all the glTexSubImage1/2/3D() functions.
3232 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3233 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3234 GLsizei width
, GLsizei height
, GLsizei depth
,
3235 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3237 struct gl_texture_object
*texObj
;
3238 struct gl_texture_image
*texImage
;
3240 FLUSH_VERTICES(ctx
, 0);
3242 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3243 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3245 _mesa_lookup_enum_by_nr(target
), level
,
3246 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3247 _mesa_lookup_enum_by_nr(format
),
3248 _mesa_lookup_enum_by_nr(type
), pixels
);
3250 /* check target (proxies not allowed) */
3251 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3252 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3253 dims
, _mesa_lookup_enum_by_nr(target
));
3257 if (ctx
->NewState
& _NEW_PIXEL
)
3258 _mesa_update_state(ctx
);
3260 if (texsubimage_error_check(ctx
, dims
, target
, level
,
3261 xoffset
, yoffset
, zoffset
,
3262 width
, height
, depth
, format
, type
)) {
3263 return; /* error was detected */
3266 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3268 _mesa_lock_texture(ctx
, texObj
);
3270 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3272 if (width
> 0 && height
> 0 && depth
> 0) {
3273 /* If we have a border, offset=-1 is legal. Bias by border width. */
3276 if (target
!= GL_TEXTURE_2D_ARRAY
)
3277 zoffset
+= texImage
->Border
;
3280 if (target
!= GL_TEXTURE_1D_ARRAY
)
3281 yoffset
+= texImage
->Border
;
3284 xoffset
+= texImage
->Border
;
3287 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3288 xoffset
, yoffset
, zoffset
,
3289 width
, height
, depth
,
3290 format
, type
, pixels
, &ctx
->Unpack
);
3292 check_gen_mipmap(ctx
, target
, texObj
, level
);
3294 ctx
->NewState
|= _NEW_TEXTURE
;
3297 _mesa_unlock_texture(ctx
, texObj
);
3302 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3303 GLint xoffset
, GLsizei width
,
3304 GLenum format
, GLenum type
,
3305 const GLvoid
*pixels
)
3307 GET_CURRENT_CONTEXT(ctx
);
3308 texsubimage(ctx
, 1, target
, level
,
3311 format
, type
, pixels
);
3316 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3317 GLint xoffset
, GLint yoffset
,
3318 GLsizei width
, GLsizei height
,
3319 GLenum format
, GLenum type
,
3320 const GLvoid
*pixels
)
3322 GET_CURRENT_CONTEXT(ctx
);
3323 texsubimage(ctx
, 2, target
, level
,
3324 xoffset
, yoffset
, 0,
3326 format
, type
, pixels
);
3332 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3333 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3334 GLsizei width
, GLsizei height
, GLsizei depth
,
3335 GLenum format
, GLenum type
,
3336 const GLvoid
*pixels
)
3338 GET_CURRENT_CONTEXT(ctx
);
3339 texsubimage(ctx
, 3, target
, level
,
3340 xoffset
, yoffset
, zoffset
,
3341 width
, height
, depth
,
3342 format
, type
, pixels
);
3348 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3349 * from. This depends on whether the texture contains color or depth values.
3351 static struct gl_renderbuffer
*
3352 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3354 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3355 /* reading from depth/stencil buffer */
3356 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3359 /* copying from color buffer */
3360 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3367 * Implement the glCopyTexImage1/2D() functions.
3370 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3371 GLenum target
, GLint level
, GLenum internalFormat
,
3372 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3374 struct gl_texture_object
*texObj
;
3375 struct gl_texture_image
*texImage
;
3376 const GLuint face
= _mesa_tex_target_to_face(target
);
3377 gl_format texFormat
;
3379 FLUSH_VERTICES(ctx
, 0);
3381 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3382 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3384 _mesa_lookup_enum_by_nr(target
), level
,
3385 _mesa_lookup_enum_by_nr(internalFormat
),
3386 x
, y
, width
, height
, border
);
3388 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3389 _mesa_update_state(ctx
);
3391 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3392 width
, height
, border
))
3395 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3397 _mesa_error(ctx
, GL_INVALID_VALUE
,
3398 "glCopyTexImage%uD(invalid width or height)", dims
);
3402 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3405 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3406 internalFormat
, GL_NONE
, GL_NONE
);
3407 assert(texFormat
!= MESA_FORMAT_NONE
);
3409 if (!ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3411 width
, height
, 1, border
)) {
3412 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3413 "glCopyTexImage%uD(image too large)", dims
);
3417 if (border
&& ctx
->Const
.StripTextureBorder
) {
3419 width
-= border
* 2;
3422 height
-= border
* 2;
3427 _mesa_lock_texture(ctx
, texObj
);
3429 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3432 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3435 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3437 /* Free old texture image */
3438 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3440 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3441 border
, internalFormat
, texFormat
);
3443 /* Allocate texture memory (no pixel data yet) */
3444 ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
);
3446 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3448 struct gl_renderbuffer
*srcRb
=
3449 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3451 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
3452 srcRb
, srcX
, srcY
, width
, height
);
3455 check_gen_mipmap(ctx
, target
, texObj
, level
);
3457 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3459 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3462 _mesa_unlock_texture(ctx
, texObj
);
3468 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3469 GLenum internalFormat
,
3471 GLsizei width
, GLint border
)
3473 GET_CURRENT_CONTEXT(ctx
);
3474 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3480 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3481 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3484 GET_CURRENT_CONTEXT(ctx
);
3485 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3486 x
, y
, width
, height
, border
);
3492 * Implementation for glCopyTexSubImage1/2/3D() functions.
3495 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3496 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3497 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3499 struct gl_texture_object
*texObj
;
3500 struct gl_texture_image
*texImage
;
3502 FLUSH_VERTICES(ctx
, 0);
3504 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3505 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3507 _mesa_lookup_enum_by_nr(target
),
3508 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3510 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3511 _mesa_update_state(ctx
);
3513 if (copytexsubimage_error_check(ctx
, dims
, target
, level
,
3514 xoffset
, yoffset
, zoffset
, width
, height
)) {
3518 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3520 _mesa_lock_texture(ctx
, texObj
);
3522 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3524 /* If we have a border, offset=-1 is legal. Bias by border width. */
3527 if (target
!= GL_TEXTURE_2D_ARRAY
)
3528 zoffset
+= texImage
->Border
;
3531 if (target
!= GL_TEXTURE_1D_ARRAY
)
3532 yoffset
+= texImage
->Border
;
3535 xoffset
+= texImage
->Border
;
3538 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3540 struct gl_renderbuffer
*srcRb
=
3541 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3543 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3544 xoffset
, yoffset
, zoffset
,
3545 srcRb
, x
, y
, width
, height
);
3547 check_gen_mipmap(ctx
, target
, texObj
, level
);
3549 ctx
->NewState
|= _NEW_TEXTURE
;
3552 _mesa_unlock_texture(ctx
, texObj
);
3557 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3558 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3560 GET_CURRENT_CONTEXT(ctx
);
3561 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3567 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3568 GLint xoffset
, GLint yoffset
,
3569 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3571 GET_CURRENT_CONTEXT(ctx
);
3572 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3579 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3580 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3581 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3583 GET_CURRENT_CONTEXT(ctx
);
3584 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3585 x
, y
, width
, height
);
3591 /**********************************************************************/
3592 /****** Compressed Textures ******/
3593 /**********************************************************************/
3597 * Error checking for glCompressedTexSubImage[123]D().
3598 * \return error code or GL_NO_ERROR.
3601 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dims
,
3602 GLenum target
, GLint level
,
3603 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3604 GLsizei width
, GLsizei height
, GLsizei depth
,
3605 GLenum format
, GLsizei imageSize
)
3607 struct gl_texture_object
*texObj
;
3608 struct gl_texture_image
*texImage
;
3616 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3617 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3618 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3619 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3620 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3621 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3625 targetOK
= GL_FALSE
;
3630 targetOK
= (target
== GL_TEXTURE_2D_ARRAY
);
3634 /* no 1D compressed textures at this time */
3635 targetOK
= GL_FALSE
;
3640 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target)",
3645 /* this will catch any invalid compressed format token */
3646 if (!_mesa_is_compressed_format(ctx
, format
)) {
3647 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(format)",
3652 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
3653 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(level=%d)",
3658 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3659 if (expectedSize
!= imageSize
) {
3660 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(size=%d)",
3665 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3667 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3668 "glCompressedTexSubImage%uD()", dims
);
3672 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3674 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3675 "glCompressedTexSubImage%uD(invalid texture image)", dims
);
3679 if ((GLint
) format
!= texImage
->InternalFormat
) {
3680 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3681 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3685 if (compressedteximage_only_format(ctx
, format
)) {
3686 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3687 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3692 if (error_check_subtexture_dimensions(ctx
, "glCompressedTexSubImage", dims
,
3693 texImage
, xoffset
, yoffset
, zoffset
,
3694 width
, height
, depth
)) {
3703 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
3704 GLenum internalFormat
, GLsizei width
,
3705 GLint border
, GLsizei imageSize
,
3708 GET_CURRENT_CONTEXT(ctx
);
3709 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3710 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3715 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
3716 GLenum internalFormat
, GLsizei width
,
3717 GLsizei height
, GLint border
, GLsizei imageSize
,
3720 GET_CURRENT_CONTEXT(ctx
);
3721 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3722 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3727 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
3728 GLenum internalFormat
, GLsizei width
,
3729 GLsizei height
, GLsizei depth
, GLint border
,
3730 GLsizei imageSize
, const GLvoid
*data
)
3732 GET_CURRENT_CONTEXT(ctx
);
3733 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3734 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3739 * Common helper for glCompressedTexSubImage1/2/3D().
3742 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3743 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3744 GLsizei width
, GLsizei height
, GLsizei depth
,
3745 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3747 struct gl_texture_object
*texObj
;
3748 struct gl_texture_image
*texImage
;
3749 GET_CURRENT_CONTEXT(ctx
);
3750 FLUSH_VERTICES(ctx
, 0);
3752 if (compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3753 xoffset
, yoffset
, zoffset
,
3754 width
, height
, depth
,
3755 format
, imageSize
)) {
3759 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3761 _mesa_lock_texture(ctx
, texObj
);
3763 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3766 if (width
> 0 && height
> 0 && depth
> 0) {
3767 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3768 xoffset
, yoffset
, zoffset
,
3769 width
, height
, depth
,
3770 format
, imageSize
, data
);
3772 check_gen_mipmap(ctx
, target
, texObj
, level
);
3774 ctx
->NewState
|= _NEW_TEXTURE
;
3777 _mesa_unlock_texture(ctx
, texObj
);
3782 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
3783 GLsizei width
, GLenum format
,
3784 GLsizei imageSize
, const GLvoid
*data
)
3786 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3787 format
, imageSize
, data
);
3792 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
3793 GLint yoffset
, GLsizei width
, GLsizei height
,
3794 GLenum format
, GLsizei imageSize
,
3797 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3798 width
, height
, 1, format
, imageSize
, data
);
3803 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
3804 GLint yoffset
, GLint zoffset
, GLsizei width
,
3805 GLsizei height
, GLsizei depth
, GLenum format
,
3806 GLsizei imageSize
, const GLvoid
*data
)
3808 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3809 width
, height
, depth
, format
, imageSize
, data
);
3813 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3815 switch (internalFormat
) {
3817 return MESA_FORMAT_A8
;
3819 return MESA_FORMAT_A16
;
3820 case GL_ALPHA16F_ARB
:
3821 return MESA_FORMAT_ALPHA_FLOAT16
;
3822 case GL_ALPHA32F_ARB
:
3823 return MESA_FORMAT_ALPHA_FLOAT32
;
3824 case GL_ALPHA8I_EXT
:
3825 return MESA_FORMAT_ALPHA_INT8
;
3826 case GL_ALPHA16I_EXT
:
3827 return MESA_FORMAT_ALPHA_INT16
;
3828 case GL_ALPHA32I_EXT
:
3829 return MESA_FORMAT_ALPHA_INT32
;
3830 case GL_ALPHA8UI_EXT
:
3831 return MESA_FORMAT_ALPHA_UINT8
;
3832 case GL_ALPHA16UI_EXT
:
3833 return MESA_FORMAT_ALPHA_UINT16
;
3834 case GL_ALPHA32UI_EXT
:
3835 return MESA_FORMAT_ALPHA_UINT32
;
3837 return MESA_FORMAT_L8
;
3838 case GL_LUMINANCE16
:
3839 return MESA_FORMAT_L16
;
3840 case GL_LUMINANCE16F_ARB
:
3841 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3842 case GL_LUMINANCE32F_ARB
:
3843 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3844 case GL_LUMINANCE8I_EXT
:
3845 return MESA_FORMAT_LUMINANCE_INT8
;
3846 case GL_LUMINANCE16I_EXT
:
3847 return MESA_FORMAT_LUMINANCE_INT16
;
3848 case GL_LUMINANCE32I_EXT
:
3849 return MESA_FORMAT_LUMINANCE_INT32
;
3850 case GL_LUMINANCE8UI_EXT
:
3851 return MESA_FORMAT_LUMINANCE_UINT8
;
3852 case GL_LUMINANCE16UI_EXT
:
3853 return MESA_FORMAT_LUMINANCE_UINT16
;
3854 case GL_LUMINANCE32UI_EXT
:
3855 return MESA_FORMAT_LUMINANCE_UINT32
;
3856 case GL_LUMINANCE8_ALPHA8
:
3857 return MESA_FORMAT_AL88
;
3858 case GL_LUMINANCE16_ALPHA16
:
3859 return MESA_FORMAT_AL1616
;
3860 case GL_LUMINANCE_ALPHA16F_ARB
:
3861 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3862 case GL_LUMINANCE_ALPHA32F_ARB
:
3863 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3864 case GL_LUMINANCE_ALPHA8I_EXT
:
3865 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3866 case GL_LUMINANCE_ALPHA16I_EXT
:
3867 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3868 case GL_LUMINANCE_ALPHA32I_EXT
:
3869 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3870 case GL_LUMINANCE_ALPHA8UI_EXT
:
3871 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3872 case GL_LUMINANCE_ALPHA16UI_EXT
:
3873 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3874 case GL_LUMINANCE_ALPHA32UI_EXT
:
3875 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3877 return MESA_FORMAT_I8
;
3878 case GL_INTENSITY16
:
3879 return MESA_FORMAT_I16
;
3880 case GL_INTENSITY16F_ARB
:
3881 return MESA_FORMAT_INTENSITY_FLOAT16
;
3882 case GL_INTENSITY32F_ARB
:
3883 return MESA_FORMAT_INTENSITY_FLOAT32
;
3884 case GL_INTENSITY8I_EXT
:
3885 return MESA_FORMAT_INTENSITY_INT8
;
3886 case GL_INTENSITY16I_EXT
:
3887 return MESA_FORMAT_INTENSITY_INT16
;
3888 case GL_INTENSITY32I_EXT
:
3889 return MESA_FORMAT_INTENSITY_INT32
;
3890 case GL_INTENSITY8UI_EXT
:
3891 return MESA_FORMAT_INTENSITY_UINT8
;
3892 case GL_INTENSITY16UI_EXT
:
3893 return MESA_FORMAT_INTENSITY_UINT16
;
3894 case GL_INTENSITY32UI_EXT
:
3895 return MESA_FORMAT_INTENSITY_UINT32
;
3897 return MESA_FORMAT_RGBA8888_REV
;
3899 return MESA_FORMAT_RGBA_16
;
3900 case GL_RGBA16F_ARB
:
3901 return MESA_FORMAT_RGBA_FLOAT16
;
3902 case GL_RGBA32F_ARB
:
3903 return MESA_FORMAT_RGBA_FLOAT32
;
3905 return MESA_FORMAT_RGBA_INT8
;
3906 case GL_RGBA16I_EXT
:
3907 return MESA_FORMAT_RGBA_INT16
;
3908 case GL_RGBA32I_EXT
:
3909 return MESA_FORMAT_RGBA_INT32
;
3910 case GL_RGBA8UI_EXT
:
3911 return MESA_FORMAT_RGBA_UINT8
;
3912 case GL_RGBA16UI_EXT
:
3913 return MESA_FORMAT_RGBA_UINT16
;
3914 case GL_RGBA32UI_EXT
:
3915 return MESA_FORMAT_RGBA_UINT32
;
3918 return MESA_FORMAT_GR88
;
3920 return MESA_FORMAT_RG1616
;
3922 return MESA_FORMAT_RG_FLOAT16
;
3924 return MESA_FORMAT_RG_FLOAT32
;
3926 return MESA_FORMAT_RG_INT8
;
3928 return MESA_FORMAT_RG_INT16
;
3930 return MESA_FORMAT_RG_INT32
;
3932 return MESA_FORMAT_RG_UINT8
;
3934 return MESA_FORMAT_RG_UINT16
;
3936 return MESA_FORMAT_RG_UINT32
;
3939 return MESA_FORMAT_R8
;
3941 return MESA_FORMAT_R16
;
3943 return MESA_FORMAT_R_FLOAT16
;
3945 return MESA_FORMAT_R_FLOAT32
;
3947 return MESA_FORMAT_R_INT8
;
3949 return MESA_FORMAT_R_INT16
;
3951 return MESA_FORMAT_R_INT32
;
3953 return MESA_FORMAT_R_UINT8
;
3955 return MESA_FORMAT_R_UINT16
;
3957 return MESA_FORMAT_R_UINT32
;
3960 return MESA_FORMAT_RGB_FLOAT32
;
3962 return MESA_FORMAT_RGB_UINT32
;
3964 return MESA_FORMAT_RGB_INT32
;
3967 return MESA_FORMAT_NONE
;
3972 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3974 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3977 if (format
== MESA_FORMAT_NONE
)
3978 return MESA_FORMAT_NONE
;
3980 datatype
= _mesa_get_format_datatype(format
);
3981 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3982 return MESA_FORMAT_NONE
;
3984 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3985 return MESA_FORMAT_NONE
;
3987 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3988 * any mention of R/RG formats, but they appear in the GL 3.1 core
3991 if (ctx
->Version
<= 30) {
3992 GLenum base_format
= _mesa_get_format_base_format(format
);
3994 if (base_format
== GL_R
|| base_format
== GL_RG
)
3995 return MESA_FORMAT_NONE
;
3998 if (!ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
3999 GLenum base_format
= _mesa_get_format_base_format(format
);
4000 if (base_format
== GL_RGB
)
4001 return MESA_FORMAT_NONE
;
4007 /** GL_ARB_texture_buffer_object */
4009 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
4011 struct gl_texture_object
*texObj
;
4012 struct gl_buffer_object
*bufObj
;
4015 GET_CURRENT_CONTEXT(ctx
);
4016 FLUSH_VERTICES(ctx
, 0);
4018 if (!(ctx
->API
== API_OPENGL_CORE
&&
4019 ctx
->Extensions
.ARB_texture_buffer_object
)) {
4020 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
4024 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
4025 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
4029 format
= validate_texbuffer_format(ctx
, internalFormat
);
4030 if (format
== MESA_FORMAT_NONE
) {
4031 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
4036 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
4037 if (buffer
&& !bufObj
) {
4038 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
4042 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4044 _mesa_lock_texture(ctx
, texObj
);
4046 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4047 texObj
->BufferObjectFormat
= internalFormat
;
4048 texObj
->_BufferObjectFormat
= format
;
4050 _mesa_unlock_texture(ctx
, texObj
);