1 /**************************************************************************
3 * Copyright 2003 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/mtypes.h"
29 #include "main/enums.h"
30 #include "main/image.h"
31 #include "main/teximage.h"
32 #include "main/mipmap.h"
34 #include "drivers/common/meta.h"
36 #include "intel_screen.h"
37 #include "intel_context.h"
38 #include "intel_batchbuffer.h"
39 #include "intel_buffers.h"
40 #include "intel_mipmap_tree.h"
41 #include "intel_regions.h"
42 #include "intel_fbo.h"
43 #include "intel_tex.h"
44 #include "intel_blit.h"
46 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
49 * Get the intel_region which is the source for any glCopyTex[Sub]Image call.
51 * Do the best we can using the blitter. A future project is to use
52 * the texture engine and fragment programs for these copies.
54 static const struct intel_region
*
55 get_teximage_source(struct intel_context
*intel
, GLenum internalFormat
)
57 struct intel_renderbuffer
*irb
;
59 DBG("%s %s\n", __FUNCTION__
,
60 _mesa_lookup_enum_by_nr(internalFormat
));
62 switch (internalFormat
) {
63 case GL_DEPTH_COMPONENT
:
64 case GL_DEPTH_COMPONENT16
:
65 irb
= intel_get_renderbuffer(intel
->ctx
.ReadBuffer
, BUFFER_DEPTH
);
66 if (irb
&& irb
->region
&& irb
->region
->cpp
== 2)
69 case GL_DEPTH24_STENCIL8_EXT
:
70 case GL_DEPTH_STENCIL_EXT
:
71 irb
= intel_get_renderbuffer(intel
->ctx
.ReadBuffer
, BUFFER_DEPTH
);
72 if (irb
&& irb
->region
&& irb
->region
->cpp
== 4)
79 return intel_readbuf_region(intel
);
87 do_copy_texsubimage(struct intel_context
*intel
,
89 struct intel_texture_image
*intelImage
,
90 GLenum internalFormat
,
91 GLint dstx
, GLint dsty
,
92 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
94 GLcontext
*ctx
= &intel
->ctx
;
95 const struct intel_region
*src
=
96 get_teximage_source(intel
, internalFormat
);
98 if (!intelImage
->mt
|| !src
) {
99 if (INTEL_DEBUG
& DEBUG_FALLBACKS
)
100 fprintf(stderr
, "%s fail %p %p (0x%08x)\n",
101 __FUNCTION__
, intelImage
->mt
, src
, internalFormat
);
105 if (intelImage
->mt
->cpp
!= src
->cpp
) {
106 if (INTEL_DEBUG
& DEBUG_FALLBACKS
)
107 fprintf(stderr
, "%s fail %d vs %d cpp\n",
108 __FUNCTION__
, intelImage
->mt
->cpp
, src
->cpp
);
113 LOCK_HARDWARE(intel
);
115 drm_intel_bo
*dst_bo
= intel_region_buffer(intel
,
116 intelImage
->mt
->region
,
118 GLuint image_offset
= intel_miptree_image_offset(intelImage
->mt
,
121 const GLint orig_x
= x
;
122 const GLint orig_y
= y
;
125 /* Update dst for clipped src. Need to also clip the source rect. */
129 /* Can't blit to tiled buffers with non-tile-aligned offset. */
130 if (intelImage
->mt
->region
->tiling
!= I915_TILING_NONE
&&
131 (image_offset
& 4095) != 0) {
132 UNLOCK_HARDWARE(intel
);
136 if (ctx
->ReadBuffer
->Name
== 0) {
137 /* reading from a window, adjust x, y */
138 const __DRIdrawablePrivate
*dPriv
= intel
->driReadDrawable
;
139 y
= dPriv
->y
+ (dPriv
->h
- (y
+ height
));
142 /* Invert the data coming from the source rectangle due to GL
143 * and hardware disagreeing on where y=0 is.
145 * It appears that our offsets and pitches get mangled
146 * appropriately by the hardware, and we don't need to adjust them
149 src_pitch
= -src
->pitch
;
151 /* reading from a FBO, y is already oriented the way we like */
152 src_pitch
= src
->pitch
;
155 if (!intelEmitCopyBlit(intel
,
161 intelImage
->mt
->pitch
,
164 intelImage
->mt
->region
->tiling
,
165 x
, y
, dstx
, dsty
, width
, height
,
167 UNLOCK_HARDWARE(intel
);
172 UNLOCK_HARDWARE(intel
);
179 intelCopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
180 GLenum internalFormat
,
181 GLint x
, GLint y
, GLsizei width
, GLint border
)
183 struct gl_texture_unit
*texUnit
=
184 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
185 struct gl_texture_object
*texObj
=
186 _mesa_select_tex_object(ctx
, texUnit
, target
);
187 struct gl_texture_image
*texImage
=
188 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
189 int srcx
, srcy
, dstx
, dsty
, height
;
194 /* Setup or redefine the texture object, mipmap tree and texture
195 * image. Don't populate yet.
197 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
199 GL_RGBA
, CHAN_TYPE
, NULL
,
200 &ctx
->DefaultPacking
, texObj
, texImage
);
206 if (!_mesa_clip_copytexsubimage(ctx
,
212 if (!do_copy_texsubimage(intel_context(ctx
), target
,
213 intel_texture_image(texImage
),
214 internalFormat
, 0, 0, x
, y
, width
, height
))
220 _mesa_meta_CopyTexImage1D(ctx
, target
, level
, internalFormat
, x
, y
,
226 intelCopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
227 GLenum internalFormat
,
228 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
231 struct gl_texture_unit
*texUnit
=
232 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
233 struct gl_texture_object
*texObj
=
234 _mesa_select_tex_object(ctx
, texUnit
, target
);
235 struct gl_texture_image
*texImage
=
236 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
237 int srcx
, srcy
, dstx
, dsty
;
242 /* Setup or redefine the texture object, mipmap tree and texture
243 * image. Don't populate yet.
245 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
246 width
, height
, border
,
247 GL_RGBA
, CHAN_TYPE
, NULL
,
248 &ctx
->DefaultPacking
, texObj
, texImage
);
254 if (!_mesa_clip_copytexsubimage(ctx
,
260 if (!do_copy_texsubimage(intel_context(ctx
), target
,
261 intel_texture_image(texImage
),
262 internalFormat
, 0, 0, x
, y
, width
, height
))
268 _mesa_meta_CopyTexImage2D(ctx
, target
, level
, internalFormat
, x
, y
,
269 width
, height
, border
);
274 intelCopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
275 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
277 struct gl_texture_unit
*texUnit
=
278 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
279 struct gl_texture_object
*texObj
=
280 _mesa_select_tex_object(ctx
, texUnit
, target
);
281 struct gl_texture_image
*texImage
=
282 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
283 GLenum internalFormat
= texImage
->InternalFormat
;
285 /* XXX need to check <border> as in above function? */
287 /* Need to check texture is compatible with source format.
290 if (!do_copy_texsubimage(intel_context(ctx
), target
,
291 intel_texture_image(texImage
),
292 internalFormat
, xoffset
, 0, x
, y
, width
, 1)) {
293 _mesa_meta_CopyTexSubImage1D(ctx
, target
, level
, xoffset
, x
, y
, width
);
299 intelCopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
300 GLint xoffset
, GLint yoffset
,
301 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
303 struct gl_texture_unit
*texUnit
=
304 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
305 struct gl_texture_object
*texObj
=
306 _mesa_select_tex_object(ctx
, texUnit
, target
);
307 struct gl_texture_image
*texImage
=
308 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
309 GLenum internalFormat
= texImage
->InternalFormat
;
311 /* Need to check texture is compatible with source format.
314 if (!do_copy_texsubimage(intel_context(ctx
), target
,
315 intel_texture_image(texImage
),
317 xoffset
, yoffset
, x
, y
, width
, height
)) {
319 DBG("%s - fallback to _mesa_meta_CopyTexSubImage2D\n", __FUNCTION__
);
321 _mesa_meta_CopyTexSubImage2D(ctx
, target
, level
,
322 xoffset
, yoffset
, x
, y
, width
, height
);
328 intelInitTextureCopyImageFuncs(struct dd_function_table
*functions
)
330 functions
->CopyTexImage1D
= intelCopyTexImage1D
;
331 functions
->CopyTexImage2D
= intelCopyTexImage2D
;
332 functions
->CopyTexSubImage1D
= intelCopyTexSubImage1D
;
333 functions
->CopyTexSubImage2D
= intelCopyTexSubImage2D
;