1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
|
/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "main/mtypes.h"
#include "main/enums.h"
#include "main/image.h"
#include "main/teximage.h"
#include "main/texstate.h"
#include "main/mipmap.h"
#include "drivers/common/meta.h"
#include "intel_screen.h"
#include "intel_context.h"
#include "intel_batchbuffer.h"
#include "intel_buffers.h"
#include "intel_mipmap_tree.h"
#include "intel_regions.h"
#include "intel_fbo.h"
#include "intel_tex.h"
#include "intel_blit.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
/**
* Get the intel_region which is the source for any glCopyTex[Sub]Image call.
*
* Do the best we can using the blitter. A future project is to use
* the texture engine and fragment programs for these copies.
*/
static const struct intel_region *
get_teximage_source(struct intel_context *intel, GLenum internalFormat)
{
struct intel_renderbuffer *irb;
DBG("%s %s\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(internalFormat));
switch (internalFormat) {
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT16:
irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
if (irb && irb->region && irb->region->cpp == 2)
return irb->region;
return NULL;
case GL_DEPTH24_STENCIL8_EXT:
case GL_DEPTH_STENCIL_EXT:
irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
if (irb && irb->region && irb->region->cpp == 4)
return irb->region;
return NULL;
case GL_RGBA:
case GL_RGBA8:
case GL_RGB:
case GL_RGB8:
return intel_readbuf_region(intel);
default:
return NULL;
}
}
static GLboolean
do_copy_texsubimage(struct intel_context *intel,
GLenum target,
struct intel_texture_image *intelImage,
GLenum internalFormat,
GLint dstx, GLint dsty,
GLint x, GLint y, GLsizei width, GLsizei height)
{
GLcontext *ctx = &intel->ctx;
const struct intel_region *src = get_teximage_source(intel, internalFormat);
if (!intelImage->mt || !src) {
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s fail %p %p (0x%08x)\n",
__FUNCTION__, intelImage->mt, src, internalFormat);
return GL_FALSE;
}
if (intelImage->mt->cpp != src->cpp) {
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s fail %d vs %d cpp\n",
__FUNCTION__, intelImage->mt->cpp, src->cpp);
return GL_FALSE;
}
/* intelFlush(ctx); */
LOCK_HARDWARE(intel);
{
drm_intel_bo *dst_bo = intel_region_buffer(intel,
intelImage->mt->region,
INTEL_WRITE_PART);
const GLint orig_x = x;
const GLint orig_y = y;
GLuint image_x, image_y;
GLshort src_pitch;
/* get dest x/y in destination texture */
intel_miptree_get_image_offset(intelImage->mt,
intelImage->level,
intelImage->face,
0,
&image_x, &image_y);
/* Update dst for clipped src. Need to also clip the source rect. */
dstx += x - orig_x;
dsty += y - orig_y;
/* Can't blit to tiled buffers with non-tile-aligned offset. */
if (intelImage->mt->region->tiling == I915_TILING_Y) {
UNLOCK_HARDWARE(intel);
return GL_FALSE;
}
if (ctx->ReadBuffer->Name == 0) {
/* reading from a window, adjust x, y */
const __DRIdrawablePrivate *dPriv = intel->driReadDrawable;
y = dPriv->y + (dPriv->h - (y + height));
x += dPriv->x;
/* Invert the data coming from the source rectangle due to GL
* and hardware disagreeing on where y=0 is.
*
* It appears that our offsets and pitches get mangled
* appropriately by the hardware, and we don't need to adjust them
* on our own.
*/
src_pitch = -src->pitch;
} else {
/* reading from a FBO, y is already oriented the way we like */
src_pitch = src->pitch;
}
/* blit from src buffer to texture */
if (!intelEmitCopyBlit(intel,
intelImage->mt->cpp,
src_pitch,
src->buffer,
0,
src->tiling,
intelImage->mt->pitch,
dst_bo,
0,
intelImage->mt->region->tiling,
src->draw_x + x, src->draw_y + y,
image_x + dstx, image_y + dsty,
width, height,
GL_COPY)) {
UNLOCK_HARDWARE(intel);
return GL_FALSE;
}
}
UNLOCK_HARDWARE(intel);
return GL_TRUE;
}
static void
intelCopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
GLenum internalFormat,
GLint x, GLint y, GLsizei width, GLint border)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj =
_mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
int srcx, srcy, dstx, dsty, height;
if (border)
goto fail;
/* Setup or redefine the texture object, mipmap tree and texture
* image. Don't populate yet.
*/
ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
width, border,
GL_RGBA, CHAN_TYPE, NULL,
&ctx->DefaultPacking, texObj, texImage);
srcx = x;
srcy = y;
dstx = 0;
dsty = 0;
height = 1;
if (!_mesa_clip_copytexsubimage(ctx,
&dstx, &dsty,
&srcx, &srcy,
&width, &height))
return;
if (!do_copy_texsubimage(intel_context(ctx), target,
intel_texture_image(texImage),
internalFormat, 0, 0, x, y, width, height))
goto fail;
return;
fail:
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexImage1D(ctx, target, level, internalFormat, x, y,
width, border);
}
static void
intelCopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
GLenum internalFormat,
GLint x, GLint y, GLsizei width, GLsizei height,
GLint border)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj =
_mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
int srcx, srcy, dstx, dsty;
if (border)
goto fail;
/* Setup or redefine the texture object, mipmap tree and texture
* image. Don't populate yet.
*/
ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
width, height, border,
GL_RGBA, GL_UNSIGNED_BYTE, NULL,
&ctx->DefaultPacking, texObj, texImage);
srcx = x;
srcy = y;
dstx = 0;
dsty = 0;
if (!_mesa_clip_copytexsubimage(ctx,
&dstx, &dsty,
&srcx, &srcy,
&width, &height))
return;
if (!do_copy_texsubimage(intel_context(ctx), target,
intel_texture_image(texImage),
internalFormat, 0, 0, x, y, width, height))
goto fail;
return;
fail:
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y,
width, height, border);
}
static void
intelCopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
GLint xoffset, GLint x, GLint y, GLsizei width)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj =
_mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
GLenum internalFormat = texImage->InternalFormat;
/* XXX need to check <border> as in above function? */
/* Need to check texture is compatible with source format.
*/
if (!do_copy_texsubimage(intel_context(ctx), target,
intel_texture_image(texImage),
internalFormat, xoffset, 0, x, y, width, 1)) {
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexSubImage1D(ctx, target, level, xoffset, x, y, width);
}
}
static void
intelCopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLint x, GLint y, GLsizei width, GLsizei height)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj =
_mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
GLenum internalFormat = texImage->InternalFormat;
/* Need to check texture is compatible with source format.
*/
if (!do_copy_texsubimage(intel_context(ctx), target,
intel_texture_image(texImage),
internalFormat,
xoffset, yoffset, x, y, width, height)) {
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexSubImage2D(ctx, target, level,
xoffset, yoffset, x, y, width, height);
}
}
void
intelInitTextureCopyImageFuncs(struct dd_function_table *functions)
{
functions->CopyTexImage1D = intelCopyTexImage1D;
functions->CopyTexImage2D = intelCopyTexImage2D;
functions->CopyTexSubImage1D = intelCopyTexSubImage1D;
functions->CopyTexSubImage2D = intelCopyTexSubImage2D;
}
|
