2 * Copyright 2003 VMware, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 #include "main/image.h"
27 #include "main/state.h"
28 #include "main/stencil.h"
29 #include "main/mtypes.h"
30 #include "main/condrender.h"
31 #include "main/fbobject.h"
32 #include "drivers/common/meta.h"
34 #include "brw_context.h"
35 #include "intel_buffers.h"
36 #include "intel_mipmap_tree.h"
37 #include "intel_pixel.h"
38 #include "intel_fbo.h"
39 #include "intel_blit.h"
40 #include "intel_batchbuffer.h"
42 #define FILE_DEBUG_FLAG DEBUG_PIXEL
45 * CopyPixels with the blitter. Don't support zooming, pixel transfer, etc.
48 do_blit_copypixels(struct gl_context
* ctx
,
49 GLint srcx
, GLint srcy
,
50 GLsizei width
, GLsizei height
,
51 GLint dstx
, GLint dsty
, GLenum type
)
53 struct brw_context
*brw
= brw_context(ctx
);
54 struct gl_framebuffer
*fb
= ctx
->DrawBuffer
;
55 struct gl_framebuffer
*read_fb
= ctx
->ReadBuffer
;
60 struct intel_renderbuffer
*draw_irb
= NULL
;
61 struct intel_renderbuffer
*read_irb
= NULL
;
63 /* Update draw buffer bounds */
64 _mesa_update_state(ctx
);
66 intel_prepare_render(brw
);
70 if (fb
->_NumColorDrawBuffers
!= 1) {
71 perf_debug("glCopyPixels() fallback: MRT\n");
75 draw_irb
= intel_renderbuffer(fb
->_ColorDrawBuffers
[0]);
76 read_irb
= intel_renderbuffer(read_fb
->_ColorReadBuffer
);
78 case GL_DEPTH_STENCIL_EXT
:
79 draw_irb
= intel_renderbuffer(fb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
);
81 intel_renderbuffer(read_fb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
);
84 perf_debug("glCopyPixels() fallback: GL_DEPTH\n");
87 perf_debug("glCopyPixels() fallback: GL_STENCIL\n");
90 perf_debug("glCopyPixels(): Unknown type\n");
95 perf_debug("glCopyPixels() fallback: missing draw buffer\n");
100 perf_debug("glCopyPixels() fallback: missing read buffer\n");
104 if (draw_irb
->mt
->surf
.samples
> 1 || read_irb
->mt
->surf
.samples
> 1) {
105 perf_debug("glCopyPixels() fallback: multisampled buffers\n");
109 if (ctx
->_ImageTransferState
) {
110 perf_debug("glCopyPixels(): Unsupported image transfer state\n");
114 if (ctx
->Depth
.Test
) {
115 perf_debug("glCopyPixels(): Unsupported depth test state\n");
119 if (brw
->stencil_enabled
) {
120 perf_debug("glCopyPixels(): Unsupported stencil test state\n");
124 if (ctx
->Fog
.Enabled
||
125 ctx
->Texture
._MaxEnabledTexImageUnit
!= -1 ||
126 _mesa_arb_fragment_program_enabled(ctx
)) {
127 perf_debug("glCopyPixels(): Unsupported fragment shader state\n");
131 if (ctx
->Color
.AlphaEnabled
||
132 ctx
->Color
.BlendEnabled
) {
133 perf_debug("glCopyPixels(): Unsupported blend state\n");
137 if (GET_COLORMASK(ctx
->Color
.ColorMask
, 0) != 0xf) {
138 perf_debug("glCopyPixels(): Unsupported color mask state\n");
142 if (ctx
->Pixel
.ZoomX
!= 1.0F
|| ctx
->Pixel
.ZoomY
!= 1.0F
) {
143 perf_debug("glCopyPixels(): Unsupported pixel zoom\n");
147 intel_batchbuffer_flush(brw
);
149 /* Clip to destination buffer. */
152 if (!_mesa_clip_to_region(fb
->_Xmin
, fb
->_Ymin
,
153 fb
->_Xmax
, fb
->_Ymax
,
154 &dstx
, &dsty
, &width
, &height
))
156 /* Adjust src coords for our post-clipped destination origin */
157 srcx
+= dstx
- orig_dstx
;
158 srcy
+= dsty
- orig_dsty
;
160 /* Clip to source buffer. */
163 if (!_mesa_clip_to_region(0, 0,
164 read_fb
->Width
, read_fb
->Height
,
165 &srcx
, &srcy
, &width
, &height
))
167 /* Adjust dst coords for our post-clipped source origin */
168 dstx
+= srcx
- orig_srcx
;
169 dsty
+= srcy
- orig_srcy
;
171 if (!intel_miptree_blit(brw
,
172 read_irb
->mt
, read_irb
->mt_level
, read_irb
->mt_layer
,
173 srcx
, srcy
, read_fb
->FlipY
,
174 draw_irb
->mt
, draw_irb
->mt_level
, draw_irb
->mt_layer
,
175 dstx
, dsty
, fb
->FlipY
,
177 (ctx
->Color
.ColorLogicOpEnabled
?
178 ctx
->Color
._LogicOp
: COLOR_LOGICOP_COPY
))) {
179 DBG("%s: blit failure\n", __func__
);
183 if (ctx
->Query
.CurrentOcclusionObject
)
184 ctx
->Query
.CurrentOcclusionObject
->Result
+= width
* height
;
188 DBG("%s: success\n", __func__
);
194 intelCopyPixels(struct gl_context
* ctx
,
195 GLint srcx
, GLint srcy
,
196 GLsizei width
, GLsizei height
,
197 GLint destx
, GLint desty
, GLenum type
)
199 struct brw_context
*brw
= brw_context(ctx
);
201 DBG("%s\n", __func__
);
203 if (!_mesa_check_conditional_render(ctx
))
206 if (brw
->screen
->devinfo
.gen
< 6 &&
207 do_blit_copypixels(ctx
, srcx
, srcy
, width
, height
, destx
, desty
, type
))
210 /* this will use swrast if needed */
211 _mesa_meta_CopyPixels(ctx
, srcx
, srcy
, width
, height
, destx
, desty
, type
);