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 struct gl_texture_format
*mesa_format
;
422 struct pipe_texture templ
;
423 struct pipe_texture
*src_tex
;
424 struct pipe_surface
*dst_surface
;
425 struct pipe_transfer
*tex_xfer
;
430 /* XXX: Can this happen? Should we assert? */
434 /* get destination surface (in the compressed texture) */
435 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
436 stImage
->face
, stImage
->level
, 0,
437 PIPE_BUFFER_USAGE_GPU_WRITE
);
439 /* can't render into this format (or other problem) */
443 /* Choose format for the temporary RGBA texture image.
445 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
450 /* Create the temporary source texture
452 memset(&templ
, 0, sizeof(templ
));
453 templ
.target
= PIPE_TEXTURE_2D
;
454 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
->MesaFormat
);
455 pf_get_block(templ
.format
, &templ
.block
);
456 templ
.width
[0] = width
;
457 templ
.height
[0] = height
;
459 templ
.last_level
= 0;
460 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
461 src_tex
= screen
->texture_create(screen
, &templ
);
466 /* Put user's tex data into the temporary texture
468 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
469 0, 0, 0, /* face, level are zero */
471 0, 0, width
, height
); /* x, y, w, h */
472 map
= screen
->transfer_map(screen
, tex_xfer
);
474 mesa_format
->StoreImage(ctx
, 2, GL_RGBA
, mesa_format
,
476 0, 0, 0, /* dest x/y/z offset */
477 tex_xfer
->stride
, /* dest row stride (bytes) */
478 dstImageOffsets
, /* image offsets (for 3D only) */
479 width
, height
, 1, /* size */
480 format
, type
, /* source format/type */
481 pixels
, /* source data */
482 unpack
); /* source data packing */
484 screen
->transfer_unmap(screen
, tex_xfer
);
485 screen
->tex_transfer_destroy(tex_xfer
);
487 /* copy / compress image */
488 util_blit_pixels_tex(ctx
->st
->blit
,
489 src_tex
, /* pipe_texture (src) */
490 0, 0, /* src x0, y0 */
491 width
, height
, /* src x1, y1 */
492 dst_surface
, /* pipe_surface (dst) */
493 xoffset
, yoffset
, /* dst x0, y0 */
494 xoffset
+ width
, /* dst x1 */
495 yoffset
+ height
, /* dst y1 */
497 PIPE_TEX_MIPFILTER_NEAREST
);
499 pipe_surface_reference(&dst_surface
, NULL
);
500 pipe_texture_reference(&src_tex
, NULL
);
507 * Do glTexImage1/2/3D().
510 st_TexImage(GLcontext
* ctx
,
512 GLenum target
, GLint level
,
513 GLint internalFormat
,
514 GLint width
, GLint height
, GLint depth
,
516 GLenum format
, GLenum type
, const void *pixels
,
517 const struct gl_pixelstore_attrib
*unpack
,
518 struct gl_texture_object
*texObj
,
519 struct gl_texture_image
*texImage
,
520 GLsizei imageSize
, GLboolean compressed_src
)
522 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
523 struct st_texture_object
*stObj
= st_texture_object(texObj
);
524 struct st_texture_image
*stImage
= st_texture_image(texImage
);
525 GLint postConvWidth
, postConvHeight
;
526 GLint texelBytes
, sizeInBytes
;
528 struct gl_pixelstore_attrib unpackNB
;
530 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
531 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
533 /* gallium does not support texture borders, strip it off */
535 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
537 texImage
->Width
= width
;
538 texImage
->Height
= height
;
539 texImage
->Depth
= depth
;
540 texImage
->Border
= 0;
544 postConvWidth
= width
;
545 postConvHeight
= height
;
547 stImage
->face
= _mesa_tex_target_to_face(target
);
548 stImage
->level
= level
;
551 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
552 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
557 /* choose the texture format */
558 texImage
->TexFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
561 _mesa_set_fetch_functions(texImage
, dims
);
563 if (texImage
->TexFormat
->TexelBytes
== 0) {
564 /* must be a compressed format */
566 texImage
->IsCompressed
= GL_TRUE
;
567 texImage
->CompressedSize
=
568 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
569 texImage
->Height
, texImage
->Depth
,
570 texImage
->TexFormat
->MesaFormat
);
573 texelBytes
= texImage
->TexFormat
->TexelBytes
;
575 /* Minimum pitch of 32 bytes */
576 if (postConvWidth
* texelBytes
< 32) {
577 postConvWidth
= 32 / texelBytes
;
578 texImage
->RowStride
= postConvWidth
;
581 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
582 /*assert(texImage->RowStride == postConvWidth);*/
585 /* Release the reference to a potentially orphaned buffer.
586 * Release any old malloced memory.
589 pipe_texture_reference(&stImage
->pt
, NULL
);
590 assert(!texImage
->Data
);
592 else if (texImage
->Data
) {
593 _mesa_align_free(texImage
->Data
);
596 if (width
== 0 || height
== 0 || depth
== 0) {
597 /* stop after freeing old image */
601 /* If this is the only mipmap level in the texture, could call
602 * bmBufferData with NULL data to free the old block and avoid
603 * waiting on any outstanding fences.
606 if (stObj
->teximage_realloc
||
607 level
> (GLint
) stObj
->pt
->last_level
||
608 (stObj
->pt
->last_level
== level
&&
609 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
610 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
611 stImage
->face
, stImage
->level
))) {
613 pipe_texture_reference(&stObj
->pt
, NULL
);
615 stObj
->teximage_realloc
= FALSE
;
620 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
622 /* Probably out of memory.
623 * Try flushing any pending rendering, then retry.
626 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
628 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
634 assert(!stImage
->pt
);
637 st_texture_match_image(stObj
->pt
, &stImage
->base
,
638 stImage
->face
, stImage
->level
)) {
640 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
645 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
647 /* st_CopyTexImage calls this function with pixels == NULL, with
648 * the expectation that the texture will be set up but nothing
649 * more will be done. This is where those calls return:
651 if (compressed_src
) {
652 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
654 "glCompressedTexImage");
657 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
659 pixels
, unpack
, "glTexImage");
664 /* See if we can do texture compression with a blit/render.
666 if (!compressed_src
&&
668 is_compressed_mesa_format(texImage
->TexFormat
) &&
669 screen
->is_format_supported(screen
,
672 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
673 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
674 format
, type
, pixels
, unpack
, texImage
)) {
680 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
681 PIPE_TRANSFER_WRITE
, 0, 0,
683 stImage
->base
.Height
);
684 if(stImage
->transfer
)
685 dstRowStride
= stImage
->transfer
->stride
;
688 /* Allocate regular memory and store the image there temporarily. */
689 if (texImage
->IsCompressed
) {
690 sizeInBytes
= texImage
->CompressedSize
;
692 _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
696 dstRowStride
= postConvWidth
* texelBytes
;
697 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
700 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
703 if (!texImage
->Data
) {
704 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
708 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
709 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
711 /* Copy data. Would like to know when it's ok for us to eg. use
712 * the blitter to copy. Or, use the hardware to do the format
713 * conversion and copy:
715 if (compressed_src
) {
716 memcpy(texImage
->Data
, pixels
, imageSize
);
719 const GLuint srcImageStride
=
720 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
722 const GLubyte
*src
= (const GLubyte
*) pixels
;
724 for (i
= 0; i
< depth
; i
++) {
725 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
,
726 texImage
->_BaseFormat
,
729 0, 0, 0, /* dstX/Y/Zoffset */
731 texImage
->ImageOffsets
,
733 format
, type
, src
, unpack
)) {
734 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
737 if (stImage
->pt
&& i
+ 1 < depth
) {
738 /* unmap this slice */
739 st_texture_image_unmap(ctx
->st
, stImage
);
740 /* map next slice of 3D texture */
741 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
742 PIPE_TRANSFER_WRITE
, 0, 0,
744 stImage
->base
.Height
);
745 src
+= srcImageStride
;
750 _mesa_unmap_teximage_pbo(ctx
, unpack
);
752 if (stImage
->pt
&& texImage
->Data
) {
753 st_texture_image_unmap(ctx
->st
, stImage
);
754 texImage
->Data
= NULL
;
757 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
758 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
764 st_TexImage3D(GLcontext
* ctx
,
765 GLenum target
, GLint level
,
766 GLint internalFormat
,
767 GLint width
, GLint height
, GLint depth
,
769 GLenum format
, GLenum type
, const void *pixels
,
770 const struct gl_pixelstore_attrib
*unpack
,
771 struct gl_texture_object
*texObj
,
772 struct gl_texture_image
*texImage
)
774 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
775 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
781 st_TexImage2D(GLcontext
* ctx
,
782 GLenum target
, GLint level
,
783 GLint internalFormat
,
784 GLint width
, GLint height
, GLint border
,
785 GLenum format
, GLenum type
, const void *pixels
,
786 const struct gl_pixelstore_attrib
*unpack
,
787 struct gl_texture_object
*texObj
,
788 struct gl_texture_image
*texImage
)
790 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
791 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
796 st_TexImage1D(GLcontext
* ctx
,
797 GLenum target
, GLint level
,
798 GLint internalFormat
,
799 GLint width
, GLint border
,
800 GLenum format
, GLenum type
, const void *pixels
,
801 const struct gl_pixelstore_attrib
*unpack
,
802 struct gl_texture_object
*texObj
,
803 struct gl_texture_image
*texImage
)
805 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
806 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
811 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
812 GLint internalFormat
,
813 GLint width
, GLint height
, GLint border
,
814 GLsizei imageSize
, const GLvoid
*data
,
815 struct gl_texture_object
*texObj
,
816 struct gl_texture_image
*texImage
)
818 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
819 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
825 * glGetTexImage() helper: decompress a compressed texture by rendering
826 * a textured quad. Store the results in the user's buffer.
829 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
830 GLenum format
, GLenum type
, GLvoid
*pixels
,
831 struct gl_texture_object
*texObj
,
832 struct gl_texture_image
*texImage
)
834 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
835 struct st_texture_image
*stImage
= st_texture_image(texImage
);
836 const GLuint width
= texImage
->Width
;
837 const GLuint height
= texImage
->Height
;
838 struct pipe_surface
*dst_surface
;
839 struct pipe_texture
*dst_texture
;
840 struct pipe_transfer
*tex_xfer
;
842 /* create temp / dest surface */
843 if (!util_create_rgba_surface(screen
, width
, height
,
844 &dst_texture
, &dst_surface
)) {
845 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
846 "in decompress_with_blit()");
850 /* blit/render/decompress */
851 util_blit_pixels_tex(ctx
->st
->blit
,
852 stImage
->pt
, /* pipe_texture (src) */
853 0, 0, /* src x0, y0 */
854 width
, height
, /* src x1, y1 */
855 dst_surface
, /* pipe_surface (dst) */
856 0, 0, /* dst x0, y0 */
857 width
, height
, /* dst x1, y1 */
859 PIPE_TEX_MIPFILTER_NEAREST
);
861 /* map the dst_surface so we can read from it */
862 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
863 dst_texture
, 0, 0, 0,
865 0, 0, width
, height
);
867 pixels
= _mesa_map_readpix_pbo(ctx
, &ctx
->Pack
, pixels
);
869 /* copy/pack data into user buffer */
870 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
872 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
873 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
875 for (row
= 0; row
< height
; row
++) {
876 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
877 height
, format
, type
, row
, 0);
878 memcpy(dest
, map
, bytesPerRow
);
879 map
+= tex_xfer
->stride
;
881 screen
->transfer_unmap(screen
, tex_xfer
);
884 /* format translation via floats */
886 for (row
= 0; row
< height
; row
++) {
887 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
888 GLfloat rgba
[4 * MAX_WIDTH
];
889 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
890 height
, format
, type
, row
, 0);
892 /* get float[4] rgba row from surface */
893 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
895 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
896 type
, dest
, &ctx
->Pack
, transferOps
);
900 _mesa_unmap_readpix_pbo(ctx
, &ctx
->Pack
);
902 /* destroy the temp / dest surface */
903 util_destroy_rgba_surface(dst_texture
, dst_surface
);
909 * Need to map texture image into memory before copying image data,
913 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
914 GLenum format
, GLenum type
, GLvoid
* pixels
,
915 struct gl_texture_object
*texObj
,
916 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
918 struct st_texture_image
*stImage
= st_texture_image(texImage
);
919 const GLuint dstImageStride
=
920 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
926 pf_is_compressed(stImage
->pt
->format
) &&
928 /* Need to decompress the texture.
929 * We'll do this by rendering a textured quad.
930 * Note that we only expect RGBA formats (no Z/depth formats).
932 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
939 /* Image is stored in hardware format in a buffer managed by the
940 * kernel. Need to explicitly map and unmap it.
943 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
946 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
947 PIPE_TRANSFER_READ
, 0, 0,
949 stImage
->base
.Height
);
950 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
953 /* Otherwise, the image should actually be stored in
954 * texImage->Data. This is pretty confusing for
955 * everybody, I'd much prefer to separate the two functions of
956 * texImage->Data - storage for texture images in main memory
957 * and access (ie mappings) of images. In other words, we'd
958 * create a new texImage->Map field and leave Data simply for
961 assert(texImage
->Data
);
964 depth
= texImage
->Depth
;
967 dest
= (GLubyte
*) pixels
;
969 for (i
= 0; i
< depth
; i
++) {
970 if (compressed_dst
) {
971 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
975 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
979 if (stImage
->pt
&& i
+ 1 < depth
) {
980 /* unmap this slice */
981 st_texture_image_unmap(ctx
->st
, stImage
);
982 /* map next slice of 3D texture */
983 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
984 PIPE_TRANSFER_READ
, 0, 0,
986 stImage
->base
.Height
);
987 dest
+= dstImageStride
;
991 texImage
->Depth
= depth
;
995 st_texture_image_unmap(ctx
->st
, stImage
);
996 texImage
->Data
= NULL
;
1002 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1003 GLenum format
, GLenum type
, GLvoid
* pixels
,
1004 struct gl_texture_object
*texObj
,
1005 struct gl_texture_image
*texImage
)
1007 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1013 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1015 struct gl_texture_object
*texObj
,
1016 struct gl_texture_image
*texImage
)
1018 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1025 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1026 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1027 GLint width
, GLint height
, GLint depth
,
1028 GLenum format
, GLenum type
, const void *pixels
,
1029 const struct gl_pixelstore_attrib
*packing
,
1030 struct gl_texture_object
*texObj
,
1031 struct gl_texture_image
*texImage
)
1033 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1034 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1035 GLuint dstRowStride
;
1036 const GLuint srcImageStride
=
1037 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1041 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1042 _mesa_lookup_enum_by_nr(target
),
1043 level
, xoffset
, yoffset
, width
, height
);
1046 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1047 type
, pixels
, packing
, "glTexSubImage2D");
1051 /* See if we can do texture compression with a blit/render.
1053 if (!ctx
->Mesa_DXTn
&&
1054 is_compressed_mesa_format(texImage
->TexFormat
) &&
1055 screen
->is_format_supported(screen
,
1056 stImage
->pt
->format
,
1057 stImage
->pt
->target
,
1058 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1059 if (compress_with_blit(ctx
, target
, level
,
1060 xoffset
, yoffset
, zoffset
,
1061 width
, height
, depth
,
1062 format
, type
, pixels
, packing
, texImage
)) {
1067 /* Map buffer if necessary. Need to lock to prevent other contexts
1068 * from uploading the buffer under us.
1071 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
1072 PIPE_TRANSFER_WRITE
);
1073 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1074 PIPE_TRANSFER_WRITE
,
1079 if (!texImage
->Data
) {
1080 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1084 src
= (const GLubyte
*) pixels
;
1085 dstRowStride
= stImage
->transfer
->stride
;
1087 for (i
= 0; i
< depth
; i
++) {
1088 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
, texImage
->_BaseFormat
,
1089 texImage
->TexFormat
,
1093 texImage
->ImageOffsets
,
1095 format
, type
, src
, packing
)) {
1096 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1099 if (stImage
->pt
&& i
+ 1 < depth
) {
1100 /* unmap this slice */
1101 st_texture_image_unmap(ctx
->st
, stImage
);
1102 /* map next slice of 3D texture */
1103 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1105 PIPE_TRANSFER_WRITE
,
1108 src
+= srcImageStride
;
1112 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1113 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1116 _mesa_unmap_teximage_pbo(ctx
, packing
);
1119 st_texture_image_unmap(ctx
->st
, stImage
);
1120 texImage
->Data
= NULL
;
1127 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1128 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1129 GLsizei width
, GLsizei height
, GLsizei depth
,
1130 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1131 const struct gl_pixelstore_attrib
*packing
,
1132 struct gl_texture_object
*texObj
,
1133 struct gl_texture_image
*texImage
)
1135 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1136 width
, height
, depth
, format
, type
,
1137 pixels
, packing
, texObj
, texImage
);
1142 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1143 GLint xoffset
, GLint yoffset
,
1144 GLsizei width
, GLsizei height
,
1145 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1146 const struct gl_pixelstore_attrib
*packing
,
1147 struct gl_texture_object
*texObj
,
1148 struct gl_texture_image
*texImage
)
1150 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1151 width
, height
, 1, format
, type
,
1152 pixels
, packing
, texObj
, texImage
);
1157 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1158 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1159 const GLvoid
* pixels
,
1160 const struct gl_pixelstore_attrib
*packing
,
1161 struct gl_texture_object
*texObj
,
1162 struct gl_texture_image
*texImage
)
1164 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1165 format
, type
, pixels
, packing
, texObj
, texImage
);
1171 * Do a CopyTexSubImage operation using a read transfer from the source,
1172 * a write transfer to the destination and get_tile()/put_tile() to access
1173 * the pixels/texels.
1175 * Note: srcY=0=TOP of renderbuffer
1178 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1179 struct st_renderbuffer
*strb
,
1180 struct st_texture_image
*stImage
,
1182 GLint destX
, GLint destY
, GLint destZ
,
1183 GLint srcX
, GLint srcY
,
1184 GLsizei width
, GLsizei height
)
1186 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1187 struct pipe_screen
*screen
= pipe
->screen
;
1188 struct pipe_transfer
*src_trans
;
1191 assert(width
<= MAX_WIDTH
);
1193 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1194 srcY
= strb
->Base
.Height
- srcY
- height
;
1197 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1204 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1205 PIPE_TRANSFER_WRITE
);
1207 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, PIPE_TRANSFER_WRITE
,
1208 destX
, destY
, width
, height
);
1210 if (baseFormat
== GL_DEPTH_COMPONENT
||
1211 baseFormat
== GL_DEPTH24_STENCIL8
) {
1212 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1213 ctx
->Pixel
.DepthBias
!= 0.0F
);
1216 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1217 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1226 /* To avoid a large temp memory allocation, do copy row by row */
1227 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1228 uint data
[MAX_WIDTH
];
1229 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1231 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1233 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1239 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1241 if (tempSrc
&& texDest
) {
1242 const GLint dims
= 2;
1243 const GLint dstRowStride
= stImage
->transfer
->stride
;
1244 struct gl_texture_image
*texImage
= &stImage
->base
;
1245 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1247 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1248 unpack
.Invert
= GL_TRUE
;
1251 /* get float/RGBA image from framebuffer */
1252 /* XXX this usually involves a lot of int/float conversion.
1253 * try to avoid that someday.
1255 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1257 /* Store into texture memory.
1258 * Note that this does some special things such as pixel transfer
1259 * ops and format conversion. In particular, if the dest tex format
1260 * is actually RGBA but the user created the texture as GL_RGB we
1261 * need to fill-in/override the alpha channel with 1.0.
1263 texImage
->TexFormat
->StoreImage(ctx
, dims
,
1264 texImage
->_BaseFormat
,
1265 texImage
->TexFormat
,
1269 texImage
->ImageOffsets
,
1271 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1275 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1279 _mesa_free(tempSrc
);
1282 st_texture_image_unmap(ctx
->st
, stImage
);
1283 screen
->tex_transfer_destroy(src_trans
);
1288 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1289 * Note that the region to copy has already been clipped so we know we
1290 * won't read from outside the source renderbuffer's bounds.
1292 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1295 st_copy_texsubimage(GLcontext
*ctx
,
1296 GLenum target
, GLint level
,
1297 GLint destX
, GLint destY
, GLint destZ
,
1298 GLint srcX
, GLint srcY
,
1299 GLsizei width
, GLsizei height
)
1301 struct gl_texture_unit
*texUnit
=
1302 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1303 struct gl_texture_object
*texObj
=
1304 _mesa_select_tex_object(ctx
, texUnit
, target
);
1305 struct gl_texture_image
*texImage
=
1306 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1307 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1308 const GLenum texBaseFormat
= texImage
->InternalFormat
;
1309 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1310 struct st_renderbuffer
*strb
;
1311 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1312 struct pipe_screen
*screen
= pipe
->screen
;
1313 enum pipe_format dest_format
, src_format
;
1314 GLboolean use_fallback
= GL_TRUE
;
1315 GLboolean matching_base_formats
;
1317 /* any rendering in progress must complete before we grab the fb image */
1320 /* determine if copying depth or color data */
1321 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1322 texBaseFormat
== GL_DEPTH24_STENCIL8
) {
1323 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1325 else if (texBaseFormat
== GL_DEPTH_STENCIL_EXT
) {
1326 strb
= st_renderbuffer(fb
->_StencilBuffer
);
1329 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1330 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1334 assert(strb
->surface
);
1335 assert(stImage
->pt
);
1337 src_format
= strb
->surface
->format
;
1338 dest_format
= stImage
->pt
->format
;
1341 * Determine if the src framebuffer and dest texture have the same
1342 * base format. We need this to detect a case such as the framebuffer
1343 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1344 * texture format stores RGBA we need to set A=1 (overriding the
1345 * framebuffer's alpha values). We can't do that with the blit or
1346 * textured-quad paths.
1348 matching_base_formats
= (strb
->Base
._BaseFormat
== texImage
->_BaseFormat
);
1350 if (matching_base_formats
&& ctx
->_ImageTransferState
== 0x0) {
1351 /* try potential hardware path */
1352 struct pipe_surface
*dest_surface
= NULL
;
1353 boolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1355 if (src_format
== dest_format
&& !do_flip
) {
1356 /* use surface_copy() / blit */
1358 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1359 stImage
->face
, stImage
->level
,
1361 PIPE_BUFFER_USAGE_GPU_WRITE
);
1363 /* for surface_copy(), y=0=top, always */
1364 pipe
->surface_copy(pipe
,
1373 use_fallback
= GL_FALSE
;
1375 else if (screen
->is_format_supported(screen
, src_format
,
1377 PIPE_TEXTURE_USAGE_SAMPLER
,
1379 screen
->is_format_supported(screen
, dest_format
,
1381 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1383 /* draw textured quad to do the copy */
1386 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1387 stImage
->face
, stImage
->level
,
1389 PIPE_BUFFER_USAGE_GPU_WRITE
);
1392 srcY1
= strb
->Base
.Height
- srcY
- height
;
1393 srcY0
= srcY1
+ height
;
1397 srcY1
= srcY0
+ height
;
1399 util_blit_pixels(ctx
->st
->blit
,
1402 srcX
+ width
, srcY1
,
1405 destX
+ width
, destY
+ height
,
1406 0.0, PIPE_TEX_MIPFILTER_NEAREST
);
1407 use_fallback
= GL_FALSE
;
1411 pipe_surface_reference(&dest_surface
, NULL
);
1415 /* software fallback */
1416 fallback_copy_texsubimage(ctx
, target
, level
,
1417 strb
, stImage
, texBaseFormat
,
1418 destX
, destY
, destZ
,
1419 srcX
, srcY
, width
, height
);
1422 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1423 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1430 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1431 GLenum internalFormat
,
1432 GLint x
, GLint y
, GLsizei width
, GLint border
)
1434 struct gl_texture_unit
*texUnit
=
1435 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1436 struct gl_texture_object
*texObj
=
1437 _mesa_select_tex_object(ctx
, texUnit
, target
);
1438 struct gl_texture_image
*texImage
=
1439 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1441 /* Setup or redefine the texture object, texture and texture
1442 * image. Don't populate yet.
1444 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1446 GL_RGBA
, CHAN_TYPE
, NULL
,
1447 &ctx
->DefaultPacking
, texObj
, texImage
);
1449 st_copy_texsubimage(ctx
, target
, level
,
1450 0, 0, 0, /* destX,Y,Z */
1451 x
, y
, width
, 1); /* src X, Y, size */
1456 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1457 GLenum internalFormat
,
1458 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1461 struct gl_texture_unit
*texUnit
=
1462 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1463 struct gl_texture_object
*texObj
=
1464 _mesa_select_tex_object(ctx
, texUnit
, target
);
1465 struct gl_texture_image
*texImage
=
1466 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1468 /* Setup or redefine the texture object, texture and texture
1469 * image. Don't populate yet.
1471 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1472 width
, height
, border
,
1473 GL_RGBA
, CHAN_TYPE
, NULL
,
1474 &ctx
->DefaultPacking
, texObj
, texImage
);
1476 st_copy_texsubimage(ctx
, target
, level
,
1477 0, 0, 0, /* destX,Y,Z */
1478 x
, y
, width
, height
); /* src X, Y, size */
1483 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1484 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1486 const GLint yoffset
= 0, zoffset
= 0;
1487 const GLsizei height
= 1;
1488 st_copy_texsubimage(ctx
, target
, level
,
1489 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1490 x
, y
, width
, height
); /* src X, Y, size */
1495 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1496 GLint xoffset
, GLint yoffset
,
1497 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1499 const GLint zoffset
= 0;
1500 st_copy_texsubimage(ctx
, target
, level
,
1501 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1502 x
, y
, width
, height
); /* src X, Y, size */
1507 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1508 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1509 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1511 st_copy_texsubimage(ctx
, target
, level
,
1512 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1513 x
, y
, width
, height
); /* src X, Y, size */
1518 * Compute which mipmap levels that really need to be sent to the hardware.
1519 * This depends on the base image size, GL_TEXTURE_MIN_LOD,
1520 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
1523 calculate_first_last_level(struct st_texture_object
*stObj
)
1525 struct gl_texture_object
*tObj
= &stObj
->base
;
1527 /* These must be signed values. MinLod and MaxLod can be negative numbers,
1528 * and having firstLevel and lastLevel as signed prevents the need for
1529 * extra sign checks.
1534 /* Yes, this looks overly complicated, but it's all needed.
1536 switch (tObj
->Target
) {
1540 case GL_TEXTURE_CUBE_MAP
:
1541 if (tObj
->MinFilter
== GL_NEAREST
|| tObj
->MinFilter
== GL_LINEAR
) {
1542 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
1544 firstLevel
= lastLevel
= tObj
->BaseLevel
;
1548 lastLevel
= MIN2(tObj
->MaxLevel
,
1549 (int) tObj
->Image
[0][tObj
->BaseLevel
]->WidthLog2
);
1552 case GL_TEXTURE_RECTANGLE_NV
:
1553 case GL_TEXTURE_4D_SGIS
:
1554 firstLevel
= lastLevel
= 0;
1560 stObj
->lastLevel
= lastLevel
;
1565 copy_image_data_to_texture(struct st_context
*st
,
1566 struct st_texture_object
*stObj
,
1568 struct st_texture_image
*stImage
)
1571 /* Copy potentially with the blitter:
1573 st_texture_image_copy(st
->pipe
,
1574 stObj
->pt
, dstLevel
, /* dest texture, level */
1575 stImage
->pt
, /* src texture */
1579 pipe_texture_reference(&stImage
->pt
, NULL
);
1581 else if (stImage
->base
.Data
) {
1582 assert(stImage
->base
.Data
!= NULL
);
1584 /* More straightforward upload.
1587 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1588 PIPE_TRANSFER_WRITE
);
1591 st_texture_image_data(st
,
1596 stImage
->base
.RowStride
*
1597 stObj
->pt
->block
.size
,
1598 stImage
->base
.RowStride
*
1599 stImage
->base
.Height
*
1600 stObj
->pt
->block
.size
);
1601 _mesa_align_free(stImage
->base
.Data
);
1602 stImage
->base
.Data
= NULL
;
1605 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1610 * Called during state validation. When this function is finished,
1611 * the texture object should be ready for rendering.
1612 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1615 st_finalize_texture(GLcontext
*ctx
,
1616 struct pipe_context
*pipe
,
1617 struct gl_texture_object
*tObj
,
1618 GLboolean
*needFlush
)
1620 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1621 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1623 struct st_texture_image
*firstImage
;
1625 *needFlush
= GL_FALSE
;
1627 /* We know/require this is true by now:
1629 assert(stObj
->base
._Complete
);
1631 /* What levels must the texture include at a minimum?
1633 calculate_first_last_level(stObj
);
1634 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1636 /* If both firstImage and stObj point to a texture which can contain
1637 * all active images, favour firstImage. Note that because of the
1638 * completeness requirement, we know that the image dimensions
1641 if (firstImage
->pt
&&
1642 firstImage
->pt
!= stObj
->pt
&&
1643 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1644 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1647 /* FIXME: determine format block instead of cpp */
1648 if (firstImage
->base
.IsCompressed
) {
1649 cpp
= compressed_num_bytes(firstImage
->base
.TexFormat
->MesaFormat
);
1652 cpp
= firstImage
->base
.TexFormat
->TexelBytes
;
1655 /* If we already have a gallium texture, check that it matches the texture
1656 * object's format, target, size, num_levels, etc.
1659 const enum pipe_format fmt
=
1660 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1661 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1662 stObj
->pt
->format
!= fmt
||
1663 stObj
->pt
->last_level
< stObj
->lastLevel
||
1664 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1665 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1666 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1667 /* Nominal bytes per pixel: */
1668 stObj
->pt
->block
.size
/ stObj
->pt
->block
.width
!= cpp
)
1670 pipe_texture_reference(&stObj
->pt
, NULL
);
1671 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1675 /* May need to create a new gallium texture:
1678 const enum pipe_format fmt
=
1679 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1680 GLuint usage
= default_usage(fmt
);
1682 stObj
->pt
= st_texture_create(ctx
->st
,
1683 gl_target_to_pipe(stObj
->base
.Target
),
1686 firstImage
->base
.Width2
,
1687 firstImage
->base
.Height2
,
1688 firstImage
->base
.Depth2
,
1692 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1697 /* Pull in any images not in the object's texture:
1699 for (face
= 0; face
< nr_faces
; face
++) {
1701 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1702 struct st_texture_image
*stImage
=
1703 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1705 /* Need to import images in main memory or held in other textures.
1707 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1708 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1709 *needFlush
= GL_TRUE
;
1719 * Returns pointer to a default/dummy texture.
1720 * This is typically used when the current shader has tex/sample instructions
1721 * but the user has not provided a (any) texture(s).
1723 struct gl_texture_object
*
1724 st_get_default_texture(struct st_context
*st
)
1726 if (!st
->default_texture
) {
1727 static const GLenum target
= GL_TEXTURE_2D
;
1728 GLubyte pixels
[16][16][4];
1729 struct gl_texture_object
*texObj
;
1730 struct gl_texture_image
*texImg
;
1733 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1734 * when attempting to sample incomplete textures.
1736 for (i
= 0; i
< 16; i
++) {
1737 for (j
= 0; j
< 16; j
++) {
1738 pixels
[i
][j
][0] = 0;
1739 pixels
[i
][j
][1] = 0;
1740 pixels
[i
][j
][2] = 0;
1741 pixels
[i
][j
][3] = 255;
1745 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1747 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1749 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1750 16, 16, 1, 0, /* w, h, d, border */
1753 st_TexImage(st
->ctx
, 2, target
,
1754 0, GL_RGBA
, /* level, intformat */
1755 16, 16, 1, 0, /* w, h, d, border */
1756 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1757 &st
->ctx
->DefaultPacking
,
1761 texObj
->MinFilter
= GL_NEAREST
;
1762 texObj
->MagFilter
= GL_NEAREST
;
1763 texObj
->_Complete
= GL_TRUE
;
1765 st
->default_texture
= texObj
;
1767 return st
->default_texture
;
1772 st_init_texture_functions(struct dd_function_table
*functions
)
1774 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1775 functions
->TexImage1D
= st_TexImage1D
;
1776 functions
->TexImage2D
= st_TexImage2D
;
1777 functions
->TexImage3D
= st_TexImage3D
;
1778 functions
->TexSubImage1D
= st_TexSubImage1D
;
1779 functions
->TexSubImage2D
= st_TexSubImage2D
;
1780 functions
->TexSubImage3D
= st_TexSubImage3D
;
1781 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1782 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1783 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1784 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1785 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1786 functions
->GenerateMipmap
= st_generate_mipmap
;
1788 functions
->GetTexImage
= st_GetTexImage
;
1790 /* compressed texture functions */
1791 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1792 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1793 functions
->CompressedTextureSize
= _mesa_compressed_texture_size
;
1795 functions
->NewTextureObject
= st_NewTextureObject
;
1796 functions
->NewTextureImage
= st_NewTextureImage
;
1797 functions
->DeleteTexture
= st_DeleteTextureObject
;
1798 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1799 functions
->UpdateTexturePalette
= 0;
1801 functions
->TextureMemCpy
= do_memcpy
;
1803 /* XXX Temporary until we can query pipe's texture sizes */
1804 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;