1
2 /**************************************************************************
3 *
4 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 #include "main/mtypes.h"
30 #include "main/pbo.h"
31 #include "main/texobj.h"
32 #include "main/texstore.h"
33 #include "main/texcompress.h"
34 #include "main/enums.h"
35
36 #include "intel_context.h"
37 #include "intel_tex.h"
38 #include "intel_mipmap_tree.h"
39 #include "intel_blit.h"
40
41 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
42
43 static bool
intel_blit_texsubimage(struct gl_context * ctx,struct gl_texture_image * texImage,GLint xoffset,GLint yoffset,GLint width,GLint height,GLenum format,GLenum type,const void * pixels,const struct gl_pixelstore_attrib * packing)44 intel_blit_texsubimage(struct gl_context * ctx,
45 struct gl_texture_image *texImage,
46 GLint xoffset, GLint yoffset,
47 GLint width, GLint height,
48 GLenum format, GLenum type, const void *pixels,
49 const struct gl_pixelstore_attrib *packing)
50 {
51 struct intel_context *intel = intel_context(ctx);
52 struct intel_texture_image *intelImage = intel_texture_image(texImage);
53 GLuint dstRowStride = 0;
54 drm_intel_bo *temp_bo = NULL;
55 unsigned int blit_x = 0, blit_y = 0;
56 unsigned long pitch;
57 uint32_t tiling_mode = I915_TILING_NONE;
58 GLubyte *dstMap;
59
60 /* Try to do a blit upload of the subimage if the texture is
61 * currently busy.
62 */
63 if (!intelImage->mt)
64 return false;
65
66 /* The blitter can't handle Y tiling */
67 if (intelImage->mt->region->tiling == I915_TILING_Y)
68 return false;
69
70 if (texImage->TexObject->Target != GL_TEXTURE_2D)
71 return false;
72
73 /* On gen6, it's probably not worth swapping to the blit ring to do
74 * this because of all the overhead involved.
75 */
76 if (intel->gen >= 6)
77 return false;
78
79 if (!drm_intel_bo_busy(intelImage->mt->region->bo))
80 return false;
81
82 DBG("BLT subimage %s target %s level %d offset %d,%d %dx%d\n",
83 __FUNCTION__,
84 _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
85 texImage->Level, xoffset, yoffset, width, height);
86
87 pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1,
88 format, type, pixels, packing,
89 "glTexSubImage");
90 if (!pixels)
91 return false;
92
93 temp_bo = drm_intel_bo_alloc_tiled(intel->bufmgr,
94 "subimage blit bo",
95 width, height,
96 intelImage->mt->cpp,
97 &tiling_mode,
98 &pitch,
99 0);
100 if (temp_bo == NULL) {
101 _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
102 return false;
103 }
104
105 if (drm_intel_gem_bo_map_gtt(temp_bo)) {
106 _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
107 return false;
108 }
109
110 dstMap = temp_bo->virtual;
111 dstRowStride = pitch;
112
113 intel_miptree_get_image_offset(intelImage->mt, texImage->Level,
114 intelImage->base.Base.Face, 0,
115 &blit_x, &blit_y);
116 blit_x += xoffset;
117 blit_y += yoffset;
118
119 if (!_mesa_texstore(ctx, 2, texImage->_BaseFormat,
120 texImage->TexFormat,
121 dstRowStride,
122 &dstMap,
123 width, height, 1,
124 format, type, pixels, packing)) {
125 _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
126 }
127
128 bool ret;
129 unsigned int dst_pitch = intelImage->mt->region->pitch *
130 intelImage->mt->cpp;
131
132 drm_intel_gem_bo_unmap_gtt(temp_bo);
133
134 ret = intelEmitCopyBlit(intel,
135 intelImage->mt->cpp,
136 dstRowStride / intelImage->mt->cpp,
137 temp_bo, 0, false,
138 dst_pitch / intelImage->mt->cpp,
139 intelImage->mt->region->bo, 0,
140 intelImage->mt->region->tiling,
141 0, 0, blit_x, blit_y, width, height,
142 GL_COPY);
143 assert(ret);
144
145 drm_intel_bo_unreference(temp_bo);
146 _mesa_unmap_teximage_pbo(ctx, packing);
147
148 return true;
149 }
150
151 static void
intelTexSubImage(struct gl_context * ctx,GLuint dims,struct gl_texture_image * texImage,GLint xoffset,GLint yoffset,GLint zoffset,GLsizei width,GLsizei height,GLsizei depth,GLenum format,GLenum type,const GLvoid * pixels,const struct gl_pixelstore_attrib * packing)152 intelTexSubImage(struct gl_context * ctx,
153 GLuint dims,
154 struct gl_texture_image *texImage,
155 GLint xoffset, GLint yoffset, GLint zoffset,
156 GLsizei width, GLsizei height, GLsizei depth,
157 GLenum format, GLenum type,
158 const GLvoid * pixels,
159 const struct gl_pixelstore_attrib *packing)
160 {
161 /* The intel_blit_texsubimage() function only handles 2D images */
162 if (dims != 2 || !intel_blit_texsubimage(ctx, texImage,
163 xoffset, yoffset,
164 width, height,
165 format, type, pixels, packing)) {
166 _mesa_store_texsubimage(ctx, dims, texImage,
167 xoffset, yoffset, zoffset,
168 width, height, depth,
169 format, type, pixels, packing);
170 }
171 }
172
173 void
intelInitTextureSubImageFuncs(struct dd_function_table * functions)174 intelInitTextureSubImageFuncs(struct dd_function_table *functions)
175 {
176 functions->TexSubImage = intelTexSubImage;
177 }
178