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 "st_context.h"
29 #include "st_format.h"
30 #include "st_texture.h"
31 #include "st_cb_fbo.h"
32 #include "st_inlines.h"
33 #include "main/enums.h"
35 #undef Elements /* fix re-defined macro warning */
37 #include "pipe/p_state.h"
38 #include "pipe/p_context.h"
39 #include "pipe/p_defines.h"
40 #include "util/u_inlines.h"
41 #include "util/u_format.h"
42 #include "util/u_rect.h"
43 #include "util/u_math.h"
46 #define DBG if(0) printf
50 target_to_target(GLenum target
)
53 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
54 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
55 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
56 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
57 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
58 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
59 return GL_TEXTURE_CUBE_MAP_ARB
;
68 * Allocate a new pipe_resource object
69 * width0, height0, depth0 are the dimensions of the level 0 image
70 * (the highest resolution). last_level indicates how many mipmap levels
71 * to allocate storage for. For non-mipmapped textures, this will be zero.
73 struct pipe_resource
*
74 st_texture_create(struct st_context
*st
,
75 enum pipe_texture_target target
,
76 enum pipe_format format
,
83 struct pipe_resource pt
, *newtex
;
84 struct pipe_screen
*screen
= st
->pipe
->screen
;
86 assert(target
<= PIPE_TEXTURE_CUBE
);
88 DBG("%s target %s format %s last_level %d\n", __FUNCTION__
,
89 _mesa_lookup_enum_by_nr(target
),
90 _mesa_lookup_enum_by_nr(format
), last_level
);
93 assert(screen
->is_format_supported(screen
, format
, target
,
94 PIPE_BIND_SAMPLER_VIEW
, 0));
96 memset(&pt
, 0, sizeof(pt
));
99 pt
.last_level
= last_level
;
101 pt
.height0
= height0
;
103 pt
.usage
= PIPE_USAGE_DEFAULT
;
107 newtex
= screen
->resource_create(screen
, &pt
);
109 assert(!newtex
|| pipe_is_referenced(&newtex
->reference
));
116 * Check if a texture image can be pulled into a unified mipmap texture.
119 st_texture_match_image(const struct pipe_resource
*pt
,
120 const struct gl_texture_image
*image
,
121 GLuint face
, GLuint level
)
123 /* Images with borders are never pulled into mipmap textures.
128 /* Check if this image's format matches the established texture's format.
130 if (st_mesa_format_to_pipe_format(image
->TexFormat
) != pt
->format
)
133 /* Test if this image's size matches what's expected in the
134 * established texture.
136 if (image
->Width
!= u_minify(pt
->width0
, level
) ||
137 image
->Height
!= u_minify(pt
->height0
, level
) ||
138 image
->Depth
!= u_minify(pt
->depth0
, level
))
146 /* Although we use the image_offset[] array to store relative offsets
147 * to cube faces, Mesa doesn't know anything about this and expects
148 * each cube face to be treated as a separate image.
150 * These functions present that view to mesa:
153 st_texture_depth_offsets(struct pipe_resource
*pt
, GLuint level
)
155 static const GLuint zero
= 0;
157 if (pt
->target
!= PIPE_TEXTURE_3D
|| pt
->level
[level
].nr_images
== 1)
160 return pt
->level
[level
].image_offset
;
165 * Return the offset to the given mipmap texture image within the
166 * texture memory buffer, in bytes.
169 st_texture_image_offset(const struct pipe_resource
* pt
,
170 GLuint face
, GLuint level
)
172 if (pt
->target
== PIPE_TEXTURE_CUBE
)
173 return (pt
->level
[level
].level_offset
+
174 pt
->level
[level
].image_offset
[face
] * pt
->cpp
);
176 return pt
->level
[level
].level_offset
;
182 * Map a teximage in a mipmap texture.
183 * \param row_stride returns row stride in bytes
184 * \param image_stride returns image stride in bytes (for 3D textures).
185 * \return address of mapping
188 st_texture_image_map(struct st_context
*st
, struct st_texture_image
*stImage
,
189 GLuint zoffset
, enum pipe_transfer_usage usage
,
190 GLuint x
, GLuint y
, GLuint w
, GLuint h
)
192 struct pipe_context
*pipe
= st
->pipe
;
193 struct pipe_resource
*pt
= stImage
->pt
;
195 DBG("%s \n", __FUNCTION__
);
197 stImage
->transfer
= st_no_flush_get_tex_transfer(st
, pt
, stImage
->face
,
198 stImage
->level
, zoffset
,
201 if (stImage
->transfer
)
202 return pipe_transfer_map(pipe
, stImage
->transfer
);
209 st_texture_image_unmap(struct st_context
*st
,
210 struct st_texture_image
*stImage
)
212 struct pipe_context
*pipe
= st
->pipe
;
214 DBG("%s\n", __FUNCTION__
);
216 pipe_transfer_unmap(pipe
, stImage
->transfer
);
218 pipe
->transfer_destroy(pipe
, stImage
->transfer
);
224 * Upload data to a rectangular sub-region. Lots of choices how to do this:
226 * - memcpy by span to current destination
227 * - upload data as new buffer and blit
229 * Currently always memcpy.
232 st_surface_data(struct pipe_context
*pipe
,
233 struct pipe_transfer
*dst
,
234 unsigned dstx
, unsigned dsty
,
235 const void *src
, unsigned src_stride
,
236 unsigned srcx
, unsigned srcy
, unsigned width
, unsigned height
)
238 void *map
= pipe_transfer_map(pipe
, dst
);
240 assert(dst
->resource
);
242 dst
->resource
->format
,
249 pipe_transfer_unmap(pipe
, dst
);
253 /* Upload data for a particular image.
256 st_texture_image_data(struct st_context
*st
,
257 struct pipe_resource
*dst
,
261 GLuint src_row_stride
, GLuint src_image_stride
)
263 struct pipe_context
*pipe
= st
->pipe
;
264 GLuint depth
= u_minify(dst
->depth0
, level
);
266 const GLubyte
*srcUB
= src
;
267 struct pipe_transfer
*dst_transfer
;
269 DBG("%s\n", __FUNCTION__
);
271 for (i
= 0; i
< depth
; i
++) {
272 dst_transfer
= st_no_flush_get_tex_transfer(st
, dst
, face
, level
, i
,
273 PIPE_TRANSFER_WRITE
, 0, 0,
274 u_minify(dst
->width0
, level
),
275 u_minify(dst
->height0
, level
));
277 st_surface_data(pipe
, dst_transfer
,
278 0, 0, /* dstx, dsty */
281 0, 0, /* source x, y */
282 u_minify(dst
->width0
, level
),
283 u_minify(dst
->height0
, level
)); /* width, height */
285 pipe
->transfer_destroy(pipe
, dst_transfer
);
287 srcUB
+= src_image_stride
;
292 /* Copy mipmap image between textures
295 st_texture_image_copy(struct pipe_context
*pipe
,
296 struct pipe_resource
*dst
, GLuint dstLevel
,
297 struct pipe_resource
*src
,
300 struct pipe_screen
*screen
= pipe
->screen
;
301 GLuint width
= u_minify(dst
->width0
, dstLevel
);
302 GLuint height
= u_minify(dst
->height0
, dstLevel
);
303 GLuint depth
= u_minify(dst
->depth0
, dstLevel
);
304 struct pipe_surface
*src_surface
;
305 struct pipe_surface
*dst_surface
;
308 for (i
= 0; i
< depth
; i
++) {
311 /* find src texture level of needed size */
312 for (srcLevel
= 0; srcLevel
<= src
->last_level
; srcLevel
++) {
313 if (u_minify(src
->width0
, srcLevel
) == width
&&
314 u_minify(src
->height0
, srcLevel
) == height
) {
318 assert(u_minify(src
->width0
, srcLevel
) == width
);
319 assert(u_minify(src
->height0
, srcLevel
) == height
);
323 src_surface
= screen
->get_tex_surface(screen
, src
, face
, srcLevel
, i
,
324 PIPE_BUFFER_USAGE_CPU_READ
);
325 ubyte
*map
= screen
->surface_map(screen
, src_surface
, PIPE_BUFFER_USAGE_CPU_READ
);
326 map
+= src_surface
->width
* src_surface
->height
* 4 / 2;
327 printf("%s center pixel: %d %d %d %d (pt %p[%d] -> %p[%d])\n",
329 map
[0], map
[1], map
[2], map
[3],
330 src
, srcLevel
, dst
, dstLevel
);
332 screen
->surface_unmap(screen
, src_surface
);
333 pipe_surface_reference(&src_surface
, NULL
);
337 dst_surface
= screen
->get_tex_surface(screen
, dst
, face
, dstLevel
, i
,
338 PIPE_BIND_BLIT_DESTINATION
);
340 src_surface
= screen
->get_tex_surface(screen
, src
, face
, srcLevel
, i
,
341 PIPE_BIND_BLIT_SOURCE
);
343 pipe
->surface_copy(pipe
,
350 pipe_surface_reference(&src_surface
, NULL
);
351 pipe_surface_reference(&dst_surface
, NULL
);
357 st_teximage_flush_before_map(struct st_context
*st
,
358 struct pipe_resource
*pt
,
361 enum pipe_transfer_usage usage
)
363 struct pipe_context
*pipe
= st
->pipe
;
364 unsigned referenced
=
365 pipe
->is_resource_referenced(pipe
, pt
, face
, level
);
367 if (referenced
&& ((referenced
& PIPE_REFERENCED_FOR_WRITE
) ||
368 (usage
& PIPE_TRANSFER_WRITE
)))
369 st
->pipe
->flush(st
->pipe
, PIPE_FLUSH_RENDER_CACHE
, NULL
);