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/texstate.h"
34 #include "drivers/common/meta.h"
36 #include "intel_screen.h"
37 #include "intel_context.h"
38 #include "intel_mipmap_tree.h"
39 #include "intel_regions.h"
40 #include "intel_fbo.h"
41 #include "intel_tex.h"
42 #include "intel_blit.h"
44 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
47 * Get the intel_region which is the source for any glCopyTex[Sub]Image call.
49 * Do the best we can using the blitter. A future project is to use
50 * the texture engine and fragment programs for these copies.
52 static struct intel_renderbuffer
*
53 get_teximage_readbuffer(struct intel_context
*intel
, GLenum internalFormat
)
55 DBG("%s %s\n", __FUNCTION__
,
56 _mesa_lookup_enum_by_nr(internalFormat
));
58 switch (internalFormat
) {
59 case GL_DEPTH_COMPONENT
:
60 case GL_DEPTH_COMPONENT16
:
61 case GL_DEPTH24_STENCIL8_EXT
:
62 case GL_DEPTH_STENCIL_EXT
:
63 return intel_get_renderbuffer(intel
->ctx
.ReadBuffer
, BUFFER_DEPTH
);
65 return intel_renderbuffer(intel
->ctx
.ReadBuffer
->_ColorReadBuffer
);
71 intel_copy_texsubimage(struct intel_context
*intel
,
73 struct intel_texture_image
*intelImage
,
74 GLenum internalFormat
,
75 GLint dstx
, GLint dsty
,
76 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
78 struct gl_context
*ctx
= &intel
->ctx
;
79 struct intel_renderbuffer
*irb
;
80 bool copy_supported_with_alpha_override
= false;
82 intel_prepare_render(intel
);
84 irb
= get_teximage_readbuffer(intel
, internalFormat
);
85 if (!intelImage
->mt
|| !irb
|| !irb
->region
) {
86 if (unlikely(INTEL_DEBUG
& DEBUG_FALLBACKS
))
87 fprintf(stderr
, "%s fail %p %p (0x%08x)\n",
88 __FUNCTION__
, intelImage
->mt
, irb
, internalFormat
);
92 if (irb
->Base
.Format
== MESA_FORMAT_XRGB8888
&&
93 intelImage
->base
.TexFormat
== MESA_FORMAT_ARGB8888
) {
94 copy_supported_with_alpha_override
= true;
97 if (intelImage
->base
.TexFormat
!= irb
->Base
.Format
&&
98 !copy_supported_with_alpha_override
) {
99 if (unlikely(INTEL_DEBUG
& DEBUG_FALLBACKS
))
100 fprintf(stderr
, "%s mismatched formats %s, %s\n",
102 _mesa_get_format_name(intelImage
->base
.TexFormat
),
103 _mesa_get_format_name(irb
->Base
.Format
));
108 drm_intel_bo
*dst_bo
= intel_region_buffer(intel
,
109 intelImage
->mt
->region
,
111 GLuint image_x
, image_y
;
114 /* get dest x/y in destination texture */
115 intel_miptree_get_image_offset(intelImage
->mt
,
121 /* The blitter can't handle Y-tiled buffers. */
122 if (intelImage
->mt
->region
->tiling
== I915_TILING_Y
) {
126 if (ctx
->ReadBuffer
->Name
== 0) {
127 /* Flip vertical orientation for system framebuffers */
128 y
= ctx
->ReadBuffer
->Height
- (y
+ height
);
129 src_pitch
= -irb
->region
->pitch
;
131 /* reading from a FBO, y is already oriented the way we like */
132 src_pitch
= irb
->region
->pitch
;
135 /* blit from src buffer to texture */
136 if (!intelEmitCopyBlit(intel
,
142 intelImage
->mt
->region
->pitch
,
145 intelImage
->mt
->region
->tiling
,
146 irb
->region
->draw_x
+ x
, irb
->region
->draw_y
+ y
,
147 image_x
+ dstx
, image_y
+ dsty
,
154 if (copy_supported_with_alpha_override
)
155 intel_set_teximage_alpha_to_one(ctx
, intelImage
);
162 intelCopyTexImage1D(struct gl_context
* ctx
, GLenum target
, GLint level
,
163 GLenum internalFormat
,
164 GLint x
, GLint y
, GLsizei width
, GLint border
)
166 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
167 struct gl_texture_object
*texObj
=
168 _mesa_select_tex_object(ctx
, texUnit
, target
);
169 struct gl_texture_image
*texImage
=
170 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
171 int srcx
, srcy
, dstx
, dsty
, height
;
176 /* Setup or redefine the texture object, mipmap tree and texture
177 * image. Don't populate yet.
179 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
181 GL_RGBA
, CHAN_TYPE
, NULL
,
182 &ctx
->DefaultPacking
, texObj
, texImage
);
188 if (!_mesa_clip_copytexsubimage(ctx
,
194 if (!intel_copy_texsubimage(intel_context(ctx
), target
,
195 intel_texture_image(texImage
),
196 internalFormat
, 0, 0, x
, y
, width
, height
))
202 fallback_debug("%s - fallback to swrast\n", __FUNCTION__
);
203 _mesa_meta_CopyTexImage1D(ctx
, target
, level
, internalFormat
, x
, y
,
209 intelCopyTexImage2D(struct gl_context
* ctx
, GLenum target
, GLint level
,
210 GLenum internalFormat
,
211 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
214 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
215 struct gl_texture_object
*texObj
=
216 _mesa_select_tex_object(ctx
, texUnit
, target
);
217 struct gl_texture_image
*texImage
=
218 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
219 int srcx
, srcy
, dstx
, dsty
;
224 /* Setup or redefine the texture object, mipmap tree and texture
225 * image. Don't populate yet.
227 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
228 width
, height
, border
,
229 GL_RGBA
, GL_UNSIGNED_BYTE
, NULL
,
230 &ctx
->DefaultPacking
, texObj
, texImage
);
236 if (!_mesa_clip_copytexsubimage(ctx
,
242 if (!intel_copy_texsubimage(intel_context(ctx
), target
,
243 intel_texture_image(texImage
),
244 internalFormat
, 0, 0, x
, y
, width
, height
))
250 fallback_debug("%s - fallback to swrast\n", __FUNCTION__
);
251 _mesa_meta_CopyTexImage2D(ctx
, target
, level
, internalFormat
, x
, y
,
252 width
, height
, border
);
257 intelCopyTexSubImage1D(struct gl_context
* ctx
, GLenum target
, GLint level
,
258 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
260 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
261 struct gl_texture_object
*texObj
=
262 _mesa_select_tex_object(ctx
, texUnit
, target
);
263 struct gl_texture_image
*texImage
=
264 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
265 GLenum internalFormat
= texImage
->InternalFormat
;
267 /* XXX need to check <border> as in above function? */
269 /* Need to check texture is compatible with source format.
272 if (!intel_copy_texsubimage(intel_context(ctx
), target
,
273 intel_texture_image(texImage
),
274 internalFormat
, xoffset
, 0, x
, y
, width
, 1)) {
275 fallback_debug("%s - fallback to swrast\n", __FUNCTION__
);
276 _mesa_meta_CopyTexSubImage1D(ctx
, target
, level
, xoffset
, x
, y
, width
);
282 intelCopyTexSubImage2D(struct gl_context
* ctx
, GLenum target
, GLint level
,
283 GLint xoffset
, GLint yoffset
,
284 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
286 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
287 struct gl_texture_object
*texObj
=
288 _mesa_select_tex_object(ctx
, texUnit
, target
);
289 struct gl_texture_image
*texImage
=
290 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
291 GLenum internalFormat
= texImage
->InternalFormat
;
293 /* Need to check texture is compatible with source format.
296 if (!intel_copy_texsubimage(intel_context(ctx
), target
,
297 intel_texture_image(texImage
),
299 xoffset
, yoffset
, x
, y
, width
, height
)) {
300 fallback_debug("%s - fallback to swrast\n", __FUNCTION__
);
301 _mesa_meta_CopyTexSubImage2D(ctx
, target
, level
,
302 xoffset
, yoffset
, x
, y
, width
, height
);
308 intelInitTextureCopyImageFuncs(struct dd_function_table
*functions
)
310 functions
->CopyTexImage1D
= intelCopyTexImage1D
;
311 functions
->CopyTexImage2D
= intelCopyTexImage2D
;
312 functions
->CopyTexSubImage1D
= intelCopyTexSubImage1D
;
313 functions
->CopyTexSubImage2D
= intelCopyTexSubImage2D
;