1 /**************************************************************************
3 * Copyright 2003 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 portions
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/image.h"
30 #include "main/state.h"
31 #include "main/mtypes.h"
32 #include "main/condrender.h"
33 #include "main/fbobject.h"
34 #include "drivers/common/meta.h"
36 #include "intel_context.h"
37 #include "intel_buffers.h"
38 #include "intel_mipmap_tree.h"
39 #include "intel_regions.h"
40 #include "intel_pixel.h"
41 #include "intel_fbo.h"
42 #include "intel_blit.h"
44 #define FILE_DEBUG_FLAG DEBUG_PIXEL
47 * CopyPixels with the blitter. Don't support zooming, pixel transfer, etc.
50 do_blit_copypixels(struct gl_context
* ctx
,
51 GLint srcx
, GLint srcy
,
52 GLsizei width
, GLsizei height
,
53 GLint dstx
, GLint dsty
, GLenum type
)
55 struct intel_context
*intel
= intel_context(ctx
);
56 struct gl_framebuffer
*fb
= ctx
->DrawBuffer
;
57 struct gl_framebuffer
*read_fb
= ctx
->ReadBuffer
;
62 struct intel_renderbuffer
*draw_irb
= NULL
;
63 struct intel_renderbuffer
*read_irb
= NULL
;
65 /* Update draw buffer bounds */
66 _mesa_update_state(ctx
);
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 (ctx
->_ImageTransferState
) {
105 perf_debug("glCopyPixels(): Unsupported image transfer state\n");
109 if (ctx
->Depth
.Test
) {
110 perf_debug("glCopyPixels(): Unsupported depth test state\n");
114 if (ctx
->Stencil
._Enabled
) {
115 perf_debug("glCopyPixels(): Unsupported stencil test state\n");
119 if (ctx
->Fog
.Enabled
||
120 ctx
->Texture
._EnabledUnits
||
121 ctx
->FragmentProgram
._Enabled
) {
122 perf_debug("glCopyPixels(): Unsupported fragment shader state\n");
126 if (ctx
->Color
.AlphaEnabled
||
127 ctx
->Color
.BlendEnabled
) {
128 perf_debug("glCopyPixels(): Unsupported blend state\n");
132 if (!ctx
->Color
.ColorMask
[0][0] ||
133 !ctx
->Color
.ColorMask
[0][1] ||
134 !ctx
->Color
.ColorMask
[0][2] ||
135 !ctx
->Color
.ColorMask
[0][3]) {
136 perf_debug("glCopyPixels(): Unsupported color mask state\n");
140 if (ctx
->Pixel
.ZoomX
!= 1.0F
|| ctx
->Pixel
.ZoomY
!= 1.0F
) {
141 perf_debug("glCopyPixles(): Unsupported pixel zoom\n");
145 intel_prepare_render(intel
);
147 intel_flush(&intel
->ctx
);
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(intel
,
172 read_irb
->mt
, read_irb
->mt_level
, read_irb
->mt_layer
,
173 srcx
, srcy
, _mesa_is_winsys_fbo(read_fb
),
174 draw_irb
->mt
, draw_irb
->mt_level
, draw_irb
->mt_layer
,
175 dstx
, dsty
, _mesa_is_winsys_fbo(fb
),
177 (ctx
->Color
.ColorLogicOpEnabled
?
178 ctx
->Color
.LogicOp
: GL_COPY
))) {
179 DBG("%s: blit failure\n", __FUNCTION__
);
183 if (ctx
->Query
.CurrentOcclusionObject
)
184 ctx
->Query
.CurrentOcclusionObject
->Result
+= width
* height
;
187 intel_check_front_buffer_rendering(intel
);
189 DBG("%s: success\n", __FUNCTION__
);
195 intelCopyPixels(struct gl_context
* ctx
,
196 GLint srcx
, GLint srcy
,
197 GLsizei width
, GLsizei height
,
198 GLint destx
, GLint desty
, GLenum type
)
200 DBG("%s\n", __FUNCTION__
);
202 if (!_mesa_check_conditional_render(ctx
))
205 if (do_blit_copypixels(ctx
, srcx
, srcy
, width
, height
, destx
, desty
, type
))
208 /* this will use swrast if needed */
209 _mesa_meta_CopyPixels(ctx
, srcx
, srcy
, width
, height
, destx
, desty
, type
);