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
|
#include "swrast/swrast.h"
#include "main/renderbuffer.h"
#include "main/texobj.h"
#include "main/teximage.h"
#include "main/mipmap.h"
#include "drivers/common/meta.h"
#include "intel_context.h"
#include "intel_mipmap_tree.h"
#include "intel_tex.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
static struct gl_texture_image *
intelNewTextureImage(struct gl_context * ctx)
{
DBG("%s\n", __FUNCTION__);
(void) ctx;
return (struct gl_texture_image *) CALLOC_STRUCT(intel_texture_image);
}
static struct gl_texture_object *
intelNewTextureObject(struct gl_context * ctx, GLuint name, GLenum target)
{
struct intel_texture_object *obj = CALLOC_STRUCT(intel_texture_object);
DBG("%s\n", __FUNCTION__);
_mesa_initialize_texture_object(&obj->base, name, target);
return &obj->base;
}
static void
intelDeleteTextureObject(struct gl_context *ctx,
struct gl_texture_object *texObj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_object *intelObj = intel_texture_object(texObj);
if (intelObj->mt)
intel_miptree_release(intel, &intelObj->mt);
_mesa_delete_texture_object(ctx, texObj);
}
static void
intel_free_texture_image_buffer(struct gl_context * ctx,
struct gl_texture_image *texImage)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_image *intelImage = intel_texture_image(texImage);
DBG("%s\n", __FUNCTION__);
if (intelImage->mt) {
intel_miptree_release(intel, &intelImage->mt);
}
if (texImage->Data) {
_mesa_free_texmemory(texImage->Data);
texImage->Data = NULL;
}
if (intelImage->depth_rb) {
_mesa_reference_renderbuffer(&intelImage->depth_rb, NULL);
}
if (intelImage->stencil_rb) {
_mesa_reference_renderbuffer(&intelImage->stencil_rb, NULL);
}
}
/**
* Map texture memory/buffer into user space.
* Note: the region of interest parameters are ignored here.
* \param mapOut returns start of mapping of region of interest
* \param rowStrideOut returns row stride in bytes
*/
static void
intel_map_texture_image(struct gl_context *ctx,
struct gl_texture_image *tex_image,
GLuint slice,
GLuint x, GLuint y, GLuint w, GLuint h,
GLbitfield mode,
GLubyte **map,
GLint *stride)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_image *intel_image = intel_texture_image(tex_image);
struct intel_mipmap_tree *mt = intel_image->mt;
unsigned int bw, bh;
if (intel_image->stencil_rb) {
/*
* The texture has packed depth/stencil format, but uses separate
* stencil. The texture's embedded stencil buffer contains the real
* stencil data, so copy that into the miptree.
*/
intel_tex_image_s8z24_gather(intel, intel_image);
}
/* For compressed formats, the stride is the number of bytes per
* row of blocks. intel_miptree_get_image_offset() already does
* the divide.
*/
_mesa_get_format_block_size(mt->format, &bw, &bh);
assert(y % bh == 0);
y /= bh;
if (likely(mt)) {
void *base = intel_region_map(intel, mt->region);
unsigned int image_x, image_y;
intel_miptree_get_image_offset(mt, tex_image->Level, tex_image->Face,
slice, &image_x, &image_y);
x += image_x;
y += image_y;
*stride = mt->region->pitch * mt->cpp;
*map = base + y * *stride + x * mt->cpp;
} else {
/* texture data is in malloc'd memory */
GLuint width = tex_image->Width;
GLuint height = ALIGN(tex_image->Height, bh) / bh;
GLuint texelSize = _mesa_get_format_bytes(tex_image->TexFormat);
assert(map);
*stride = _mesa_format_row_stride(tex_image->TexFormat, width);
*map = tex_image->Data + (slice * height + y) * *stride + x * texelSize;
return;
}
}
static void
intel_unmap_texture_image(struct gl_context *ctx,
struct gl_texture_image *tex_image, GLuint slice)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_image *intel_image = intel_texture_image(tex_image);
intel_region_unmap(intel, intel_image->mt->region);
if (intel_image->stencil_rb) {
/*
* The texture has packed depth/stencil format, but uses separate
* stencil. The texture's embedded stencil buffer contains the real
* stencil data, so copy that into the miptree.
*/
intel_tex_image_s8z24_scatter(intel, intel_image);
}
}
/**
* Called via ctx->Driver.GenerateMipmap()
* This is basically a wrapper for _mesa_meta_GenerateMipmap() which checks
* if we'll be using software mipmap generation. In that case, we need to
* map/unmap the base level texture image.
*/
static void
intelGenerateMipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj)
{
if (_mesa_meta_check_generate_mipmap_fallback(ctx, target, texObj)) {
/* sw path: need to map texture images */
struct intel_context *intel = intel_context(ctx);
struct intel_texture_object *intelObj = intel_texture_object(texObj);
struct gl_texture_image *first_image = texObj->Image[0][texObj->BaseLevel];
fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
intel_tex_map_level_images(intel, intelObj, texObj->BaseLevel);
_mesa_generate_mipmap(ctx, target, texObj);
intel_tex_unmap_level_images(intel, intelObj, texObj->BaseLevel);
if (!_mesa_is_format_compressed(first_image->TexFormat)) {
GLuint nr_faces = (texObj->Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
GLuint face, i;
for (face = 0; face < nr_faces; face++) {
for (i = texObj->BaseLevel + 1; i < texObj->MaxLevel; i++) {
struct intel_texture_image *intelImage =
intel_texture_image(texObj->Image[face][i]);
if (!intelImage)
break;
/* Unreference the miptree to signal that the new Data is a
* bare pointer from mesa.
*/
intel_miptree_release(intel, &intelImage->mt);
}
}
}
}
else {
_mesa_meta_GenerateMipmap(ctx, target, texObj);
}
}
void
intelInitTextureFuncs(struct dd_function_table *functions)
{
functions->GenerateMipmap = intelGenerateMipmap;
functions->NewTextureObject = intelNewTextureObject;
functions->NewTextureImage = intelNewTextureImage;
functions->DeleteTexture = intelDeleteTextureObject;
functions->FreeTextureImageBuffer = intel_free_texture_image_buffer;
functions->MapTextureImage = intel_map_texture_image;
functions->UnmapTextureImage = intel_unmap_texture_image;
}
|
