1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mfeatures.h"
29 #include "main/bufferobj.h"
31 #include "main/convolve.h"
33 #include "main/enums.h"
34 #include "main/image.h"
35 #include "main/imports.h"
36 #include "main/macros.h"
37 #include "main/mipmap.h"
38 #include "main/pixel.h"
39 #include "main/texcompress.h"
40 #include "main/texformat.h"
41 #include "main/texgetimage.h"
42 #include "main/teximage.h"
43 #include "main/texobj.h"
44 #include "main/texstore.h"
46 #include "state_tracker/st_context.h"
47 #include "state_tracker/st_cb_fbo.h"
48 #include "state_tracker/st_cb_texture.h"
49 #include "state_tracker/st_format.h"
50 #include "state_tracker/st_public.h"
51 #include "state_tracker/st_texture.h"
52 #include "state_tracker/st_gen_mipmap.h"
53 #include "state_tracker/st_inlines.h"
55 #include "pipe/p_context.h"
56 #include "pipe/p_defines.h"
57 #include "pipe/p_inlines.h"
58 #include "util/u_tile.h"
59 #include "util/u_blit.h"
60 #include "util/u_surface.h"
63 #define DBG if (0) printf
66 static enum pipe_texture_target
67 gl_target_to_pipe(GLenum target
)
71 return PIPE_TEXTURE_1D
;
74 case GL_TEXTURE_RECTANGLE_NV
:
75 return PIPE_TEXTURE_2D
;
78 return PIPE_TEXTURE_3D
;
80 case GL_TEXTURE_CUBE_MAP_ARB
:
81 return PIPE_TEXTURE_CUBE
;
91 * Return nominal bytes per texel for a compressed format, 0 for non-compressed
95 compressed_num_bytes(GLuint mesaFormat
)
98 #if FEATURE_texture_fxt1
99 case MESA_FORMAT_RGB_FXT1
:
100 case MESA_FORMAT_RGBA_FXT1
:
102 #if FEATURE_texture_s3tc
103 case MESA_FORMAT_RGB_DXT1
:
104 case MESA_FORMAT_RGBA_DXT1
:
106 case MESA_FORMAT_RGBA_DXT3
:
107 case MESA_FORMAT_RGBA_DXT5
:
117 is_compressed_mesa_format(const struct gl_texture_format
*format
)
119 switch (format
->MesaFormat
) {
120 case MESA_FORMAT_RGB_DXT1
:
121 case MESA_FORMAT_RGBA_DXT1
:
122 case MESA_FORMAT_RGBA_DXT3
:
123 case MESA_FORMAT_RGBA_DXT5
:
124 case MESA_FORMAT_SRGB_DXT1
:
125 case MESA_FORMAT_SRGBA_DXT1
:
126 case MESA_FORMAT_SRGBA_DXT3
:
127 case MESA_FORMAT_SRGBA_DXT5
:
135 /** called via ctx->Driver.NewTextureImage() */
136 static struct gl_texture_image
*
137 st_NewTextureImage(GLcontext
* ctx
)
139 DBG("%s\n", __FUNCTION__
);
141 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
145 /** called via ctx->Driver.NewTextureObject() */
146 static struct gl_texture_object
*
147 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
149 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
151 DBG("%s\n", __FUNCTION__
);
152 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
157 /** called via ctx->Driver.DeleteTextureImage() */
159 st_DeleteTextureObject(GLcontext
*ctx
,
160 struct gl_texture_object
*texObj
)
162 struct st_texture_object
*stObj
= st_texture_object(texObj
);
164 pipe_texture_reference(&stObj
->pt
, NULL
);
166 _mesa_delete_texture_object(ctx
, texObj
);
170 /** called via ctx->Driver.FreeTexImageData() */
172 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
174 struct st_texture_image
*stImage
= st_texture_image(texImage
);
176 DBG("%s\n", __FUNCTION__
);
179 pipe_texture_reference(&stImage
->pt
, NULL
);
182 if (texImage
->Data
) {
183 _mesa_align_free(texImage
->Data
);
184 texImage
->Data
= NULL
;
190 * From linux kernel i386 header files, copes with odd sizes better
191 * than COPY_DWORDS would:
192 * XXX Put this in src/mesa/main/imports.h ???
194 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
196 __memcpy(void *to
, const void *from
, size_t n
)
199 __asm__
__volatile__("rep ; movsl\n\t"
203 "1:\ttestb $1,%b4\n\t"
205 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
206 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
211 #define __memcpy(a,b,c) memcpy(a,b,c)
216 * The system memcpy (at least on ubuntu 5.10) has problems copying
217 * to agp (writecombined) memory from a source which isn't 64-byte
218 * aligned - there is a 4x performance falloff.
220 * The x86 __memcpy is immune to this but is slightly slower
221 * (10%-ish) than the system memcpy.
223 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
224 * isn't much faster than x86_memcpy for agp copies.
226 * TODO: switch dynamically.
229 do_memcpy(void *dest
, const void *src
, size_t n
)
231 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
232 return __memcpy(dest
, src
, n
);
235 return memcpy(dest
, src
, n
);
242 GLint i
= 1, log2
= 0;
252 * Return default texture usage bitmask for the given texture format.
255 default_usage(enum pipe_format fmt
)
257 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
258 if (pf_is_depth_stencil(fmt
))
259 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
261 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
267 * Allocate a pipe_texture object for the given st_texture_object using
268 * the given st_texture_image to guess the mipmap size/levels.
271 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
274 * Otherwise, if max_level >= level >= min_level, create texture with
275 * space for images from min_level down to max_level.
277 * Otherwise, create texture with space for images from (level 0)..(1x1).
278 * Consider pruning this texture at a validation if the saving is worth it.
281 guess_and_alloc_texture(struct st_context
*st
,
282 struct st_texture_object
*stObj
,
283 const struct st_texture_image
*stImage
)
287 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
288 GLuint height
= stImage
->base
.Height2
;
289 GLuint depth
= stImage
->base
.Depth2
;
291 enum pipe_format fmt
;
293 DBG("%s\n", __FUNCTION__
);
298 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
299 (stImage
->base
.Width
== 1 ||
300 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
301 stImage
->base
.Height
== 1) ||
302 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
303 stImage
->base
.Depth
== 1)))
306 /* If this image disrespects BaseLevel, allocate from level zero.
307 * Usually BaseLevel == 0, so it's unlikely to happen.
309 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
312 firstLevel
= stObj
->base
.BaseLevel
;
315 /* Figure out image dimensions at start level.
317 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
326 if (width
== 0 || height
== 0 || depth
== 0) {
327 /* no texture needed */
331 /* Guess a reasonable value for lastLevel. This is probably going
332 * to be wrong fairly often and might mean that we have to look at
333 * resizable buffers, or require that buffers implement lazy
334 * pagetable arrangements.
336 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
337 stObj
->base
.MinFilter
== GL_LINEAR
) &&
338 stImage
->level
== firstLevel
) {
339 lastLevel
= firstLevel
;
342 GLuint l2width
= logbase2(width
);
343 GLuint l2height
= logbase2(height
);
344 GLuint l2depth
= logbase2(depth
);
345 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
348 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
->MesaFormat
);
350 usage
= default_usage(fmt
);
352 stObj
->pt
= st_texture_create(st
,
353 gl_target_to_pipe(stObj
->base
.Target
),
361 DBG("%s - success\n", __FUNCTION__
);
366 * Adjust pixel unpack params and image dimensions to strip off the
368 * Gallium doesn't support texture borders. They've seldem been used
369 * and seldom been implemented correctly anyway.
370 * \param unpackNew returns the new pixel unpack parameters
373 strip_texture_border(GLint border
,
374 GLint
*width
, GLint
*height
, GLint
*depth
,
375 const struct gl_pixelstore_attrib
*unpack
,
376 struct gl_pixelstore_attrib
*unpackNew
)
378 assert(border
> 0); /* sanity check */
380 *unpackNew
= *unpack
;
382 if (unpackNew
->RowLength
== 0)
383 unpackNew
->RowLength
= *width
;
385 if (depth
&& unpackNew
->ImageHeight
== 0)
386 unpackNew
->ImageHeight
= *height
;
388 unpackNew
->SkipPixels
+= border
;
390 unpackNew
->SkipRows
+= border
;
392 unpackNew
->SkipImages
+= border
;
395 *width
= *width
- 2 * border
;
396 if (height
&& *height
>= 3)
397 *height
= *height
- 2 * border
;
398 if (depth
&& *depth
>= 3)
399 *depth
= *depth
- 2 * border
;
404 * Try to do texture compression via rendering. If the Gallium driver
405 * can render into a compressed surface this will allow us to do texture
407 * \return GL_TRUE for success, GL_FALSE for failure
410 compress_with_blit(GLcontext
* ctx
,
411 GLenum target
, GLint level
,
412 GLint xoffset
, GLint yoffset
, GLint zoffset
,
413 GLint width
, GLint height
, GLint depth
,
414 GLenum format
, GLenum type
, const void *pixels
,
415 const struct gl_pixelstore_attrib
*unpack
,
416 struct gl_texture_image
*texImage
)
418 const GLuint dstImageOffsets
[1] = {0};
419 struct st_texture_image
*stImage
= st_texture_image(texImage
);
420 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
421 const GLuint face
= _mesa_tex_target_to_face(target
);
422 const struct gl_texture_format
*mesa_format
;
423 struct pipe_texture templ
;
424 struct pipe_texture
*src_tex
;
425 struct pipe_surface
*dst_surface
;
426 struct pipe_transfer
*tex_xfer
;
431 /* XXX: Can this happen? Should we assert? */
435 /* get destination surface (in the compressed texture) */
436 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
437 stImage
->face
, stImage
->level
, 0,
438 PIPE_BUFFER_USAGE_GPU_WRITE
);
440 /* can't render into this format (or other problem) */
444 /* Choose format for the temporary RGBA texture image.
446 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
451 /* Create the temporary source texture
453 memset(&templ
, 0, sizeof(templ
));
454 templ
.target
= PIPE_TEXTURE_2D
;
455 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
->MesaFormat
);
456 pf_get_block(templ
.format
, &templ
.block
);
457 templ
.width
[0] = width
;
458 templ
.height
[0] = height
;
460 templ
.last_level
= 0;
461 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
462 src_tex
= screen
->texture_create(screen
, &templ
);
467 /* Put user's tex data into the temporary texture
469 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
472 0, 0, width
, height
); /* x, y, w, h */
473 map
= screen
->transfer_map(screen
, tex_xfer
);
475 mesa_format
->StoreImage(ctx
, 2, GL_RGBA
, mesa_format
,
477 0, 0, 0, /* dest x/y/z offset */
478 tex_xfer
->stride
, /* dest row stride (bytes) */
479 dstImageOffsets
, /* image offsets (for 3D only) */
480 width
, height
, 1, /* size */
481 format
, type
, /* source format/type */
482 pixels
, /* source data */
483 unpack
); /* source data packing */
485 screen
->transfer_unmap(screen
, tex_xfer
);
486 screen
->tex_transfer_destroy(tex_xfer
);
488 /* copy / compress image */
489 util_blit_pixels_tex(ctx
->st
->blit
,
490 src_tex
, /* pipe_texture (src) */
491 0, 0, /* src x0, y0 */
492 width
, height
, /* src x1, y1 */
493 dst_surface
, /* pipe_surface (dst) */
494 xoffset
, yoffset
, /* dst x0, y0 */
495 xoffset
+ width
, /* dst x1 */
496 yoffset
+ height
, /* dst y1 */
498 PIPE_TEX_MIPFILTER_NEAREST
);
500 pipe_surface_reference(&dst_surface
, NULL
);
501 pipe_texture_reference(&src_tex
, NULL
);
508 * Do glTexImage1/2/3D().
511 st_TexImage(GLcontext
* ctx
,
513 GLenum target
, GLint level
,
514 GLint internalFormat
,
515 GLint width
, GLint height
, GLint depth
,
517 GLenum format
, GLenum type
, const void *pixels
,
518 const struct gl_pixelstore_attrib
*unpack
,
519 struct gl_texture_object
*texObj
,
520 struct gl_texture_image
*texImage
,
521 GLsizei imageSize
, GLboolean compressed_src
)
523 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
524 struct st_texture_object
*stObj
= st_texture_object(texObj
);
525 struct st_texture_image
*stImage
= st_texture_image(texImage
);
526 GLint postConvWidth
, postConvHeight
;
527 GLint texelBytes
, sizeInBytes
;
529 struct gl_pixelstore_attrib unpackNB
;
531 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
532 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
534 /* gallium does not support texture borders, strip it off */
536 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
538 texImage
->Width
= width
;
539 texImage
->Height
= height
;
540 texImage
->Depth
= depth
;
541 texImage
->Border
= 0;
545 postConvWidth
= width
;
546 postConvHeight
= height
;
548 stImage
->face
= _mesa_tex_target_to_face(target
);
549 stImage
->level
= level
;
552 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
553 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
558 /* choose the texture format */
559 texImage
->TexFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
562 _mesa_set_fetch_functions(texImage
, dims
);
564 if (texImage
->TexFormat
->TexelBytes
== 0) {
565 /* must be a compressed format */
567 texImage
->IsCompressed
= GL_TRUE
;
568 texImage
->CompressedSize
=
569 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
570 texImage
->Height
, texImage
->Depth
,
571 texImage
->TexFormat
->MesaFormat
);
574 texelBytes
= texImage
->TexFormat
->TexelBytes
;
576 /* Minimum pitch of 32 bytes */
577 if (postConvWidth
* texelBytes
< 32) {
578 postConvWidth
= 32 / texelBytes
;
579 texImage
->RowStride
= postConvWidth
;
582 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
583 /*assert(texImage->RowStride == postConvWidth);*/
586 /* Release the reference to a potentially orphaned buffer.
587 * Release any old malloced memory.
590 pipe_texture_reference(&stImage
->pt
, NULL
);
591 assert(!texImage
->Data
);
593 else if (texImage
->Data
) {
594 _mesa_align_free(texImage
->Data
);
597 if (width
== 0 || height
== 0 || depth
== 0) {
598 /* stop after freeing old image */
602 /* If this is the only mipmap level in the texture, could call
603 * bmBufferData with NULL data to free the old block and avoid
604 * waiting on any outstanding fences.
607 if (stObj
->teximage_realloc
||
608 level
> (GLint
) stObj
->pt
->last_level
||
609 (stObj
->pt
->last_level
== level
&&
610 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
611 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
612 stImage
->face
, stImage
->level
))) {
614 pipe_texture_reference(&stObj
->pt
, NULL
);
616 stObj
->teximage_realloc
= FALSE
;
621 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
623 /* Probably out of memory.
624 * Try flushing any pending rendering, then retry.
627 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
629 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
635 assert(!stImage
->pt
);
638 st_texture_match_image(stObj
->pt
, &stImage
->base
,
639 stImage
->face
, stImage
->level
)) {
641 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
646 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
648 /* st_CopyTexImage calls this function with pixels == NULL, with
649 * the expectation that the texture will be set up but nothing
650 * more will be done. This is where those calls return:
652 if (compressed_src
) {
653 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
655 "glCompressedTexImage");
658 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
660 pixels
, unpack
, "glTexImage");
665 /* See if we can do texture compression with a blit/render.
667 if (!compressed_src
&&
669 is_compressed_mesa_format(texImage
->TexFormat
) &&
670 screen
->is_format_supported(screen
,
673 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
674 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
675 format
, type
, pixels
, unpack
, texImage
)) {
681 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
682 PIPE_TRANSFER_WRITE
, 0, 0,
684 stImage
->base
.Height
);
685 if(stImage
->transfer
)
686 dstRowStride
= stImage
->transfer
->stride
;
689 /* Allocate regular memory and store the image there temporarily. */
690 if (texImage
->IsCompressed
) {
691 sizeInBytes
= texImage
->CompressedSize
;
693 _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
697 dstRowStride
= postConvWidth
* texelBytes
;
698 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
701 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
704 if (!texImage
->Data
) {
705 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
709 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
710 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
712 /* Copy data. Would like to know when it's ok for us to eg. use
713 * the blitter to copy. Or, use the hardware to do the format
714 * conversion and copy:
716 if (compressed_src
) {
717 memcpy(texImage
->Data
, pixels
, imageSize
);
720 const GLuint srcImageStride
=
721 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
723 const GLubyte
*src
= (const GLubyte
*) pixels
;
725 for (i
= 0; i
< depth
; i
++) {
726 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
,
727 texImage
->_BaseFormat
,
730 0, 0, 0, /* dstX/Y/Zoffset */
732 texImage
->ImageOffsets
,
734 format
, type
, src
, unpack
)) {
735 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
738 if (stImage
->pt
&& i
+ 1 < depth
) {
739 /* unmap this slice */
740 st_texture_image_unmap(ctx
->st
, stImage
);
741 /* map next slice of 3D texture */
742 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
743 PIPE_TRANSFER_WRITE
, 0, 0,
745 stImage
->base
.Height
);
746 src
+= srcImageStride
;
751 _mesa_unmap_teximage_pbo(ctx
, unpack
);
753 if (stImage
->pt
&& texImage
->Data
) {
754 st_texture_image_unmap(ctx
->st
, stImage
);
755 texImage
->Data
= NULL
;
758 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
759 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
765 st_TexImage3D(GLcontext
* ctx
,
766 GLenum target
, GLint level
,
767 GLint internalFormat
,
768 GLint width
, GLint height
, GLint depth
,
770 GLenum format
, GLenum type
, const void *pixels
,
771 const struct gl_pixelstore_attrib
*unpack
,
772 struct gl_texture_object
*texObj
,
773 struct gl_texture_image
*texImage
)
775 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
776 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
782 st_TexImage2D(GLcontext
* ctx
,
783 GLenum target
, GLint level
,
784 GLint internalFormat
,
785 GLint width
, GLint height
, GLint border
,
786 GLenum format
, GLenum type
, const void *pixels
,
787 const struct gl_pixelstore_attrib
*unpack
,
788 struct gl_texture_object
*texObj
,
789 struct gl_texture_image
*texImage
)
791 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
792 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
797 st_TexImage1D(GLcontext
* ctx
,
798 GLenum target
, GLint level
,
799 GLint internalFormat
,
800 GLint width
, GLint border
,
801 GLenum format
, GLenum type
, const void *pixels
,
802 const struct gl_pixelstore_attrib
*unpack
,
803 struct gl_texture_object
*texObj
,
804 struct gl_texture_image
*texImage
)
806 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
807 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
812 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
813 GLint internalFormat
,
814 GLint width
, GLint height
, GLint border
,
815 GLsizei imageSize
, const GLvoid
*data
,
816 struct gl_texture_object
*texObj
,
817 struct gl_texture_image
*texImage
)
819 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
820 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
826 * glGetTexImage() helper: decompress a compressed texture by rendering
827 * a textured quad. Store the results in the user's buffer.
830 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
831 GLenum format
, GLenum type
, GLvoid
*pixels
,
832 struct gl_texture_object
*texObj
,
833 struct gl_texture_image
*texImage
)
835 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
836 struct st_texture_image
*stImage
= st_texture_image(texImage
);
837 const GLuint width
= texImage
->Width
;
838 const GLuint height
= texImage
->Height
;
839 struct pipe_surface
*dst_surface
;
840 struct pipe_texture
*dst_texture
;
841 struct pipe_transfer
*tex_xfer
;
843 /* create temp / dest surface */
844 if (!util_create_rgba_surface(screen
, width
, height
,
845 &dst_texture
, &dst_surface
)) {
846 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
847 "in decompress_with_blit()");
851 /* blit/render/decompress */
852 util_blit_pixels_tex(ctx
->st
->blit
,
853 stImage
->pt
, /* pipe_texture (src) */
854 0, 0, /* src x0, y0 */
855 width
, height
, /* src x1, y1 */
856 dst_surface
, /* pipe_surface (dst) */
857 0, 0, /* dst x0, y0 */
858 width
, height
, /* dst x1, y1 */
860 PIPE_TEX_MIPFILTER_NEAREST
);
862 /* map the dst_surface so we can read from it */
863 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
864 dst_texture
, 0, 0, 0,
866 0, 0, width
, height
);
868 pixels
= _mesa_map_readpix_pbo(ctx
, &ctx
->Pack
, pixels
);
870 /* copy/pack data into user buffer */
871 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
873 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
874 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
876 for (row
= 0; row
< height
; row
++) {
877 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
878 height
, format
, type
, row
, 0);
879 memcpy(dest
, map
, bytesPerRow
);
880 map
+= tex_xfer
->stride
;
882 screen
->transfer_unmap(screen
, tex_xfer
);
885 /* format translation via floats */
887 for (row
= 0; row
< height
; row
++) {
888 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
889 GLfloat rgba
[4 * MAX_WIDTH
];
890 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
891 height
, format
, type
, row
, 0);
893 /* get float[4] rgba row from surface */
894 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
896 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
897 type
, dest
, &ctx
->Pack
, transferOps
);
901 _mesa_unmap_readpix_pbo(ctx
, &ctx
->Pack
);
903 /* destroy the temp / dest surface */
904 util_destroy_rgba_surface(dst_texture
, dst_surface
);
910 * Need to map texture image into memory before copying image data,
914 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
915 GLenum format
, GLenum type
, GLvoid
* pixels
,
916 struct gl_texture_object
*texObj
,
917 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
919 struct st_texture_image
*stImage
= st_texture_image(texImage
);
920 const GLuint dstImageStride
=
921 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
927 pf_is_compressed(stImage
->pt
->format
) &&
929 /* Need to decompress the texture.
930 * We'll do this by rendering a textured quad.
931 * Note that we only expect RGBA formats (no Z/depth formats).
933 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
940 /* Image is stored in hardware format in a buffer managed by the
941 * kernel. Need to explicitly map and unmap it.
944 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
947 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
948 PIPE_TRANSFER_READ
, 0, 0,
950 stImage
->base
.Height
);
951 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
954 /* Otherwise, the image should actually be stored in
955 * texImage->Data. This is pretty confusing for
956 * everybody, I'd much prefer to separate the two functions of
957 * texImage->Data - storage for texture images in main memory
958 * and access (ie mappings) of images. In other words, we'd
959 * create a new texImage->Map field and leave Data simply for
962 assert(texImage
->Data
);
965 depth
= texImage
->Depth
;
968 dest
= (GLubyte
*) pixels
;
970 for (i
= 0; i
< depth
; i
++) {
971 if (compressed_dst
) {
972 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
976 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
980 if (stImage
->pt
&& i
+ 1 < depth
) {
981 /* unmap this slice */
982 st_texture_image_unmap(ctx
->st
, stImage
);
983 /* map next slice of 3D texture */
984 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
985 PIPE_TRANSFER_READ
, 0, 0,
987 stImage
->base
.Height
);
988 dest
+= dstImageStride
;
992 texImage
->Depth
= depth
;
996 st_texture_image_unmap(ctx
->st
, stImage
);
997 texImage
->Data
= NULL
;
1003 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1004 GLenum format
, GLenum type
, GLvoid
* pixels
,
1005 struct gl_texture_object
*texObj
,
1006 struct gl_texture_image
*texImage
)
1008 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1014 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1016 struct gl_texture_object
*texObj
,
1017 struct gl_texture_image
*texImage
)
1019 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1026 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1027 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1028 GLint width
, GLint height
, GLint depth
,
1029 GLenum format
, GLenum type
, const void *pixels
,
1030 const struct gl_pixelstore_attrib
*packing
,
1031 struct gl_texture_object
*texObj
,
1032 struct gl_texture_image
*texImage
)
1034 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1035 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1036 GLuint dstRowStride
;
1037 const GLuint srcImageStride
=
1038 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1042 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1043 _mesa_lookup_enum_by_nr(target
),
1044 level
, xoffset
, yoffset
, width
, height
);
1047 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1048 type
, pixels
, packing
, "glTexSubImage2D");
1052 /* See if we can do texture compression with a blit/render.
1054 if (!ctx
->Mesa_DXTn
&&
1055 is_compressed_mesa_format(texImage
->TexFormat
) &&
1056 screen
->is_format_supported(screen
,
1057 stImage
->pt
->format
,
1058 stImage
->pt
->target
,
1059 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1060 if (compress_with_blit(ctx
, target
, level
,
1061 xoffset
, yoffset
, zoffset
,
1062 width
, height
, depth
,
1063 format
, type
, pixels
, packing
, texImage
)) {
1068 /* Map buffer if necessary. Need to lock to prevent other contexts
1069 * from uploading the buffer under us.
1072 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
1073 PIPE_TRANSFER_WRITE
);
1074 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1075 PIPE_TRANSFER_WRITE
,
1080 if (!texImage
->Data
) {
1081 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1085 src
= (const GLubyte
*) pixels
;
1086 dstRowStride
= stImage
->transfer
->stride
;
1088 for (i
= 0; i
< depth
; i
++) {
1089 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
, texImage
->_BaseFormat
,
1090 texImage
->TexFormat
,
1094 texImage
->ImageOffsets
,
1096 format
, type
, src
, packing
)) {
1097 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1100 if (stImage
->pt
&& i
+ 1 < depth
) {
1101 /* unmap this slice */
1102 st_texture_image_unmap(ctx
->st
, stImage
);
1103 /* map next slice of 3D texture */
1104 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1106 PIPE_TRANSFER_WRITE
,
1109 src
+= srcImageStride
;
1113 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1114 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1117 _mesa_unmap_teximage_pbo(ctx
, packing
);
1120 st_texture_image_unmap(ctx
->st
, stImage
);
1121 texImage
->Data
= NULL
;
1128 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1129 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1130 GLsizei width
, GLsizei height
, GLsizei depth
,
1131 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1132 const struct gl_pixelstore_attrib
*packing
,
1133 struct gl_texture_object
*texObj
,
1134 struct gl_texture_image
*texImage
)
1136 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1137 width
, height
, depth
, format
, type
,
1138 pixels
, packing
, texObj
, texImage
);
1143 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1144 GLint xoffset
, GLint yoffset
,
1145 GLsizei width
, GLsizei height
,
1146 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1147 const struct gl_pixelstore_attrib
*packing
,
1148 struct gl_texture_object
*texObj
,
1149 struct gl_texture_image
*texImage
)
1151 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1152 width
, height
, 1, format
, type
,
1153 pixels
, packing
, texObj
, texImage
);
1158 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1159 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1160 const GLvoid
* pixels
,
1161 const struct gl_pixelstore_attrib
*packing
,
1162 struct gl_texture_object
*texObj
,
1163 struct gl_texture_image
*texImage
)
1165 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1166 format
, type
, pixels
, packing
, texObj
, texImage
);
1172 * Do a CopyTexSubImage operation using a read transfer from the source,
1173 * a write transfer to the destination and get_tile()/put_tile() to access
1174 * the pixels/texels.
1176 * Note: srcY=0=TOP of renderbuffer
1179 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1180 struct st_renderbuffer
*strb
,
1181 struct st_texture_image
*stImage
,
1183 GLint destX
, GLint destY
, GLint destZ
,
1184 GLint srcX
, GLint srcY
,
1185 GLsizei width
, GLsizei height
)
1187 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1188 struct pipe_screen
*screen
= pipe
->screen
;
1189 struct pipe_transfer
*src_trans
;
1192 assert(width
<= MAX_WIDTH
);
1194 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1195 srcY
= strb
->Base
.Height
- srcY
- height
;
1198 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1205 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1206 PIPE_TRANSFER_WRITE
);
1208 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, PIPE_TRANSFER_WRITE
,
1209 destX
, destY
, width
, height
);
1211 if (baseFormat
== GL_DEPTH_COMPONENT
||
1212 baseFormat
== GL_DEPTH24_STENCIL8
) {
1213 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1214 ctx
->Pixel
.DepthBias
!= 0.0F
);
1217 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1218 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1227 /* To avoid a large temp memory allocation, do copy row by row */
1228 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1229 uint data
[MAX_WIDTH
];
1230 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1232 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1234 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1240 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1242 if (tempSrc
&& texDest
) {
1243 const GLint dims
= 2;
1244 const GLint dstRowStride
= stImage
->transfer
->stride
;
1245 struct gl_texture_image
*texImage
= &stImage
->base
;
1246 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1248 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1249 unpack
.Invert
= GL_TRUE
;
1252 /* get float/RGBA image from framebuffer */
1253 /* XXX this usually involves a lot of int/float conversion.
1254 * try to avoid that someday.
1256 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1258 /* Store into texture memory.
1259 * Note that this does some special things such as pixel transfer
1260 * ops and format conversion. In particular, if the dest tex format
1261 * is actually RGBA but the user created the texture as GL_RGB we
1262 * need to fill-in/override the alpha channel with 1.0.
1264 texImage
->TexFormat
->StoreImage(ctx
, dims
,
1265 texImage
->_BaseFormat
,
1266 texImage
->TexFormat
,
1270 texImage
->ImageOffsets
,
1272 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1276 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1280 _mesa_free(tempSrc
);
1283 st_texture_image_unmap(ctx
->st
, stImage
);
1284 screen
->tex_transfer_destroy(src_trans
);
1289 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1290 * Note that the region to copy has already been clipped so we know we
1291 * won't read from outside the source renderbuffer's bounds.
1293 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1296 st_copy_texsubimage(GLcontext
*ctx
,
1297 GLenum target
, GLint level
,
1298 GLint destX
, GLint destY
, GLint destZ
,
1299 GLint srcX
, GLint srcY
,
1300 GLsizei width
, GLsizei height
)
1302 struct gl_texture_unit
*texUnit
=
1303 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1304 struct gl_texture_object
*texObj
=
1305 _mesa_select_tex_object(ctx
, texUnit
, target
);
1306 struct gl_texture_image
*texImage
=
1307 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1308 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1309 const GLenum texBaseFormat
= texImage
->InternalFormat
;
1310 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1311 struct st_renderbuffer
*strb
;
1312 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1313 struct pipe_screen
*screen
= pipe
->screen
;
1314 enum pipe_format dest_format
, src_format
;
1315 GLboolean use_fallback
= GL_TRUE
;
1316 GLboolean matching_base_formats
;
1318 /* any rendering in progress must complete before we grab the fb image */
1321 /* determine if copying depth or color data */
1322 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1323 texBaseFormat
== GL_DEPTH24_STENCIL8
) {
1324 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1326 else if (texBaseFormat
== GL_DEPTH_STENCIL_EXT
) {
1327 strb
= st_renderbuffer(fb
->_StencilBuffer
);
1330 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1331 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1335 assert(strb
->surface
);
1336 assert(stImage
->pt
);
1338 src_format
= strb
->surface
->format
;
1339 dest_format
= stImage
->pt
->format
;
1342 * Determine if the src framebuffer and dest texture have the same
1343 * base format. We need this to detect a case such as the framebuffer
1344 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1345 * texture format stores RGBA we need to set A=1 (overriding the
1346 * framebuffer's alpha values). We can't do that with the blit or
1347 * textured-quad paths.
1349 matching_base_formats
= (strb
->Base
._BaseFormat
== texImage
->_BaseFormat
);
1351 if (matching_base_formats
&& ctx
->_ImageTransferState
== 0x0) {
1352 /* try potential hardware path */
1353 struct pipe_surface
*dest_surface
= NULL
;
1354 boolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1356 if (src_format
== dest_format
&& !do_flip
) {
1357 /* use surface_copy() / blit */
1359 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1360 stImage
->face
, stImage
->level
,
1362 PIPE_BUFFER_USAGE_GPU_WRITE
);
1364 /* for surface_copy(), y=0=top, always */
1365 pipe
->surface_copy(pipe
,
1374 use_fallback
= GL_FALSE
;
1376 else if (screen
->is_format_supported(screen
, src_format
,
1378 PIPE_TEXTURE_USAGE_SAMPLER
,
1380 screen
->is_format_supported(screen
, dest_format
,
1382 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1384 /* draw textured quad to do the copy */
1387 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1388 stImage
->face
, stImage
->level
,
1390 PIPE_BUFFER_USAGE_GPU_WRITE
);
1393 srcY1
= strb
->Base
.Height
- srcY
- height
;
1394 srcY0
= srcY1
+ height
;
1398 srcY1
= srcY0
+ height
;
1400 util_blit_pixels(ctx
->st
->blit
,
1403 srcX
+ width
, srcY1
,
1406 destX
+ width
, destY
+ height
,
1407 0.0, PIPE_TEX_MIPFILTER_NEAREST
);
1408 use_fallback
= GL_FALSE
;
1412 pipe_surface_reference(&dest_surface
, NULL
);
1416 /* software fallback */
1417 fallback_copy_texsubimage(ctx
, target
, level
,
1418 strb
, stImage
, texBaseFormat
,
1419 destX
, destY
, destZ
,
1420 srcX
, srcY
, width
, height
);
1423 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1424 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1431 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1432 GLenum internalFormat
,
1433 GLint x
, GLint y
, GLsizei width
, GLint border
)
1435 struct gl_texture_unit
*texUnit
=
1436 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1437 struct gl_texture_object
*texObj
=
1438 _mesa_select_tex_object(ctx
, texUnit
, target
);
1439 struct gl_texture_image
*texImage
=
1440 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1442 /* Setup or redefine the texture object, texture and texture
1443 * image. Don't populate yet.
1445 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1447 GL_RGBA
, CHAN_TYPE
, NULL
,
1448 &ctx
->DefaultPacking
, texObj
, texImage
);
1450 st_copy_texsubimage(ctx
, target
, level
,
1451 0, 0, 0, /* destX,Y,Z */
1452 x
, y
, width
, 1); /* src X, Y, size */
1457 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1458 GLenum internalFormat
,
1459 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1462 struct gl_texture_unit
*texUnit
=
1463 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1464 struct gl_texture_object
*texObj
=
1465 _mesa_select_tex_object(ctx
, texUnit
, target
);
1466 struct gl_texture_image
*texImage
=
1467 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1469 /* Setup or redefine the texture object, texture and texture
1470 * image. Don't populate yet.
1472 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1473 width
, height
, border
,
1474 GL_RGBA
, CHAN_TYPE
, NULL
,
1475 &ctx
->DefaultPacking
, texObj
, texImage
);
1477 st_copy_texsubimage(ctx
, target
, level
,
1478 0, 0, 0, /* destX,Y,Z */
1479 x
, y
, width
, height
); /* src X, Y, size */
1484 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1485 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1487 const GLint yoffset
= 0, zoffset
= 0;
1488 const GLsizei height
= 1;
1489 st_copy_texsubimage(ctx
, target
, level
,
1490 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1491 x
, y
, width
, height
); /* src X, Y, size */
1496 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1497 GLint xoffset
, GLint yoffset
,
1498 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1500 const GLint zoffset
= 0;
1501 st_copy_texsubimage(ctx
, target
, level
,
1502 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1503 x
, y
, width
, height
); /* src X, Y, size */
1508 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1509 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1510 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1512 st_copy_texsubimage(ctx
, target
, level
,
1513 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1514 x
, y
, width
, height
); /* src X, Y, size */
1519 * Compute which mipmap levels that really need to be sent to the hardware.
1520 * This depends on the base image size, GL_TEXTURE_MIN_LOD,
1521 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
1524 calculate_first_last_level(struct st_texture_object
*stObj
)
1526 struct gl_texture_object
*tObj
= &stObj
->base
;
1528 /* These must be signed values. MinLod and MaxLod can be negative numbers,
1529 * and having firstLevel and lastLevel as signed prevents the need for
1530 * extra sign checks.
1535 /* Yes, this looks overly complicated, but it's all needed.
1537 switch (tObj
->Target
) {
1541 case GL_TEXTURE_CUBE_MAP
:
1542 if (tObj
->MinFilter
== GL_NEAREST
|| tObj
->MinFilter
== GL_LINEAR
) {
1543 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
1545 firstLevel
= lastLevel
= tObj
->BaseLevel
;
1549 lastLevel
= MIN2(tObj
->MaxLevel
,
1550 (int) tObj
->Image
[0][tObj
->BaseLevel
]->WidthLog2
);
1553 case GL_TEXTURE_RECTANGLE_NV
:
1554 case GL_TEXTURE_4D_SGIS
:
1555 firstLevel
= lastLevel
= 0;
1561 stObj
->lastLevel
= lastLevel
;
1566 copy_image_data_to_texture(struct st_context
*st
,
1567 struct st_texture_object
*stObj
,
1569 struct st_texture_image
*stImage
)
1572 /* Copy potentially with the blitter:
1574 st_texture_image_copy(st
->pipe
,
1575 stObj
->pt
, dstLevel
, /* dest texture, level */
1576 stImage
->pt
, /* src texture */
1580 pipe_texture_reference(&stImage
->pt
, NULL
);
1582 else if (stImage
->base
.Data
) {
1583 assert(stImage
->base
.Data
!= NULL
);
1585 /* More straightforward upload.
1588 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1589 PIPE_TRANSFER_WRITE
);
1592 st_texture_image_data(st
,
1597 stImage
->base
.RowStride
*
1598 stObj
->pt
->block
.size
,
1599 stImage
->base
.RowStride
*
1600 stImage
->base
.Height
*
1601 stObj
->pt
->block
.size
);
1602 _mesa_align_free(stImage
->base
.Data
);
1603 stImage
->base
.Data
= NULL
;
1606 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1611 * Called during state validation. When this function is finished,
1612 * the texture object should be ready for rendering.
1613 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1616 st_finalize_texture(GLcontext
*ctx
,
1617 struct pipe_context
*pipe
,
1618 struct gl_texture_object
*tObj
,
1619 GLboolean
*needFlush
)
1621 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1622 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1624 struct st_texture_image
*firstImage
;
1626 *needFlush
= GL_FALSE
;
1628 /* We know/require this is true by now:
1630 assert(stObj
->base
._Complete
);
1632 /* What levels must the texture include at a minimum?
1634 calculate_first_last_level(stObj
);
1635 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1637 /* If both firstImage and stObj point to a texture which can contain
1638 * all active images, favour firstImage. Note that because of the
1639 * completeness requirement, we know that the image dimensions
1642 if (firstImage
->pt
&&
1643 firstImage
->pt
!= stObj
->pt
&&
1644 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1645 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1648 /* FIXME: determine format block instead of cpp */
1649 if (firstImage
->base
.IsCompressed
) {
1650 cpp
= compressed_num_bytes(firstImage
->base
.TexFormat
->MesaFormat
);
1653 cpp
= firstImage
->base
.TexFormat
->TexelBytes
;
1656 /* If we already have a gallium texture, check that it matches the texture
1657 * object's format, target, size, num_levels, etc.
1660 const enum pipe_format fmt
=
1661 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1662 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1663 stObj
->pt
->format
!= fmt
||
1664 stObj
->pt
->last_level
< stObj
->lastLevel
||
1665 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1666 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1667 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1668 /* Nominal bytes per pixel: */
1669 stObj
->pt
->block
.size
/ stObj
->pt
->block
.width
!= cpp
)
1671 pipe_texture_reference(&stObj
->pt
, NULL
);
1672 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1676 /* May need to create a new gallium texture:
1679 const enum pipe_format fmt
=
1680 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1681 GLuint usage
= default_usage(fmt
);
1683 stObj
->pt
= st_texture_create(ctx
->st
,
1684 gl_target_to_pipe(stObj
->base
.Target
),
1687 firstImage
->base
.Width2
,
1688 firstImage
->base
.Height2
,
1689 firstImage
->base
.Depth2
,
1693 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1698 /* Pull in any images not in the object's texture:
1700 for (face
= 0; face
< nr_faces
; face
++) {
1702 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1703 struct st_texture_image
*stImage
=
1704 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1706 /* Need to import images in main memory or held in other textures.
1708 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1709 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1710 *needFlush
= GL_TRUE
;
1720 * Returns pointer to a default/dummy texture.
1721 * This is typically used when the current shader has tex/sample instructions
1722 * but the user has not provided a (any) texture(s).
1724 struct gl_texture_object
*
1725 st_get_default_texture(struct st_context
*st
)
1727 if (!st
->default_texture
) {
1728 static const GLenum target
= GL_TEXTURE_2D
;
1729 GLubyte pixels
[16][16][4];
1730 struct gl_texture_object
*texObj
;
1731 struct gl_texture_image
*texImg
;
1734 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1735 * when attempting to sample incomplete textures.
1737 for (i
= 0; i
< 16; i
++) {
1738 for (j
= 0; j
< 16; j
++) {
1739 pixels
[i
][j
][0] = 0;
1740 pixels
[i
][j
][1] = 0;
1741 pixels
[i
][j
][2] = 0;
1742 pixels
[i
][j
][3] = 255;
1746 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1748 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1750 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1751 16, 16, 1, 0, /* w, h, d, border */
1754 st_TexImage(st
->ctx
, 2, target
,
1755 0, GL_RGBA
, /* level, intformat */
1756 16, 16, 1, 0, /* w, h, d, border */
1757 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1758 &st
->ctx
->DefaultPacking
,
1762 texObj
->MinFilter
= GL_NEAREST
;
1763 texObj
->MagFilter
= GL_NEAREST
;
1764 texObj
->_Complete
= GL_TRUE
;
1766 st
->default_texture
= texObj
;
1768 return st
->default_texture
;
1773 st_init_texture_functions(struct dd_function_table
*functions
)
1775 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1776 functions
->TexImage1D
= st_TexImage1D
;
1777 functions
->TexImage2D
= st_TexImage2D
;
1778 functions
->TexImage3D
= st_TexImage3D
;
1779 functions
->TexSubImage1D
= st_TexSubImage1D
;
1780 functions
->TexSubImage2D
= st_TexSubImage2D
;
1781 functions
->TexSubImage3D
= st_TexSubImage3D
;
1782 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1783 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1784 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1785 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1786 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1787 functions
->GenerateMipmap
= st_generate_mipmap
;
1789 functions
->GetTexImage
= st_GetTexImage
;
1791 /* compressed texture functions */
1792 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1793 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1794 functions
->CompressedTextureSize
= _mesa_compressed_texture_size
;
1796 functions
->NewTextureObject
= st_NewTextureObject
;
1797 functions
->NewTextureImage
= st_NewTextureImage
;
1798 functions
->DeleteTexture
= st_DeleteTextureObject
;
1799 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1800 functions
->UpdateTexturePalette
= 0;
1802 functions
->TextureMemCpy
= do_memcpy
;
1804 /* XXX Temporary until we can query pipe's texture sizes */
1805 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;