1 /**************************************************************************
3 * Copyright 2006 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 portionsalloc
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/glheader.h"
29 #include "main/enums.h"
30 #include "main/image.h"
31 #include "main/mtypes.h"
32 #include "main/condrender.h"
33 #include "main/fbobject.h"
34 #include "main/teximage.h"
35 #include "main/texobj.h"
36 #include "main/texstate.h"
37 #include "main/bufferobj.h"
38 #include "swrast/swrast.h"
39 #include "drivers/common/meta.h"
41 #include "brw_context.h"
42 #include "intel_screen.h"
43 #include "intel_blit.h"
44 #include "intel_buffers.h"
45 #include "intel_fbo.h"
46 #include "intel_mipmap_tree.h"
47 #include "intel_regions.h"
48 #include "intel_pixel.h"
49 #include "intel_buffer_objects.h"
51 #define FILE_DEBUG_FLAG DEBUG_PIXEL
54 do_blit_drawpixels(struct gl_context
* ctx
,
55 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
56 GLenum format
, GLenum type
,
57 const struct gl_pixelstore_attrib
*unpack
,
58 const GLvoid
* pixels
)
60 struct brw_context
*brw
= brw_context(ctx
);
61 struct intel_buffer_object
*src
= intel_buffer_object(unpack
->BufferObj
);
63 drm_intel_bo
*src_buffer
;
65 DBG("%s\n", __FUNCTION__
);
67 if (!intel_check_blit_fragment_ops(ctx
, false))
70 if (ctx
->DrawBuffer
->_NumColorDrawBuffers
!= 1) {
71 DBG("%s: fallback due to MRT\n", __FUNCTION__
);
75 struct gl_renderbuffer
*rb
= ctx
->DrawBuffer
->_ColorDrawBuffers
[0];
76 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
78 if (!_mesa_format_matches_format_and_type(irb
->mt
->format
, format
, type
,
80 DBG("%s: bad format for blit\n", __FUNCTION__
);
84 if (unpack
->SwapBytes
|| unpack
->LsbFirst
||
85 unpack
->SkipPixels
|| unpack
->SkipRows
) {
86 DBG("%s: bad packing params\n", __FUNCTION__
);
90 int src_stride
= _mesa_image_row_stride(unpack
, width
, format
, type
);
91 bool src_flip
= false;
92 /* Mesa flips the src_stride for unpack->Invert, but we want our mt to have
93 * a normal src_stride.
96 src_stride
= -src_stride
;
100 src_offset
= (GLintptr
)pixels
;
101 src_offset
+= _mesa_image_offset(2, unpack
, width
, height
,
102 format
, type
, 0, 0, 0);
104 intel_prepare_render(brw
);
106 src_buffer
= intel_bufferobj_buffer(brw
, src
,
107 src_offset
, width
* height
*
110 struct intel_mipmap_tree
*pbo_mt
=
111 intel_miptree_create_for_bo(brw
,
116 src_stride
, I915_TILING_NONE
);
120 if (!intel_miptree_blit(brw
,
123 irb
->mt
, irb
->mt_level
, irb
->mt_layer
,
124 x
, y
, _mesa_is_winsys_fbo(ctx
->DrawBuffer
),
125 width
, height
, GL_COPY
)) {
126 DBG("%s: blit failed\n", __FUNCTION__
);
127 intel_miptree_release(&pbo_mt
);
131 intel_miptree_release(&pbo_mt
);
133 if (ctx
->Query
.CurrentOcclusionObject
)
134 ctx
->Query
.CurrentOcclusionObject
->Result
+= width
* height
;
136 intel_check_front_buffer_rendering(brw
);
138 DBG("%s: success\n", __FUNCTION__
);
143 intelDrawPixels(struct gl_context
* ctx
,
145 GLsizei width
, GLsizei height
,
148 const struct gl_pixelstore_attrib
*unpack
,
149 const GLvoid
* pixels
)
151 struct brw_context
*brw
= brw_context(ctx
);
153 if (!_mesa_check_conditional_render(ctx
))
156 if (format
== GL_STENCIL_INDEX
) {
157 _swrast_DrawPixels(ctx
, x
, y
, width
, height
, format
, type
,
162 if (_mesa_is_bufferobj(unpack
->BufferObj
)) {
163 if (do_blit_drawpixels(ctx
, x
, y
, width
, height
, format
, type
, unpack
,
168 perf_debug("%s: fallback to generic code in PBO case\n", __FUNCTION__
);
171 _mesa_meta_DrawPixels(ctx
, x
, y
, width
, height
, format
, type
,