2 Copyright (C) Intel Corp. 2006. All Rights Reserved.
3 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
4 develop this 3D driver.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a 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, sublicense, 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
16 portions of the Software.
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **********************************************************************/
30 * Keith Whitwell <keith@tungstengraphics.com>
33 #include "main/glheader.h"
34 #include "main/mtypes.h"
35 #include "main/imports.h"
36 #include "main/macros.h"
37 #include "main/colormac.h"
38 #include "main/renderbuffer.h"
39 #include "main/framebuffer.h"
41 #include "intel_batchbuffer.h"
42 #include "intel_regions.h"
43 #include "intel_fbo.h"
45 #include "brw_context.h"
46 #include "brw_defines.h"
47 #include "brw_state.h"
52 #include "../glsl/ralloc.h"
55 dri_bo_release(drm_intel_bo
**bo
)
57 drm_intel_bo_unreference(*bo
);
63 * called from intelDestroyContext()
65 static void brw_destroy_context( struct intel_context
*intel
)
67 struct brw_context
*brw
= brw_context(&intel
->ctx
);
69 brw_destroy_state(brw
);
70 brw_draw_destroy( brw
);
71 brw_clear_validated_bos(brw
);
72 ralloc_free(brw
->wm
.compile_data
);
74 dri_bo_release(&brw
->curbe
.curbe_bo
);
75 dri_bo_release(&brw
->vs
.const_bo
);
76 dri_bo_release(&brw
->wm
.const_bo
);
78 free(brw
->curbe
.last_buf
);
79 free(brw
->curbe
.next_buf
);
83 * Update the hardware state for drawing into a window or framebuffer object.
85 * Called by glDrawBuffer, glBindFramebufferEXT, MakeCurrent, and other
86 * places within the driver.
88 * Basically, this needs to be called any time the current framebuffer
89 * changes, the renderbuffers change, or we need to draw into different
93 brw_update_draw_buffer(struct intel_context
*intel
)
95 struct gl_context
*ctx
= &intel
->ctx
;
96 struct gl_framebuffer
*fb
= ctx
->DrawBuffer
;
97 struct intel_renderbuffer
*irbDepth
= NULL
, *irbStencil
= NULL
;
98 bool fb_has_hiz
= intel_framebuffer_has_hiz(fb
);
101 /* this can happen during the initial context initialization */
106 * If intel_context is using separate stencil, but the depth attachment
107 * (gl_framebuffer.Attachment[BUFFER_DEPTH]) has a packed depth/stencil
108 * format, then we must install the real depth buffer at fb->_DepthBuffer
109 * and set fb->_DepthBuffer->Wrapped before calling _mesa_update_framebuffer.
110 * Otherwise, _mesa_update_framebuffer will create and install a swras
111 * depth wrapper instead.
115 irbDepth
= intel_get_renderbuffer(fb
, BUFFER_DEPTH
);
116 if (irbDepth
&& irbDepth
->Base
.Format
== MESA_FORMAT_X8_Z24
) {
117 _mesa_reference_renderbuffer(&fb
->_DepthBuffer
, &irbDepth
->Base
);
118 irbDepth
->Base
.Wrapped
= fb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
121 irbStencil
= intel_get_renderbuffer(fb
, BUFFER_STENCIL
);
122 if (irbStencil
&& irbStencil
->Base
.Format
== MESA_FORMAT_S8
) {
123 _mesa_reference_renderbuffer(&fb
->_StencilBuffer
, &irbStencil
->Base
);
124 irbStencil
->Base
.Wrapped
= fb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
;
127 /* Do this here, not core Mesa, since this function is called from
128 * many places within the driver.
130 if (ctx
->NewState
& _NEW_BUFFERS
) {
131 /* this updates the DrawBuffer->_NumColorDrawBuffers fields, etc */
132 _mesa_update_framebuffer(ctx
);
133 /* this updates the DrawBuffer's Width/Height if it's a FBO */
134 _mesa_update_draw_buffer_bounds(ctx
);
137 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
138 /* this may occur when we're called by glBindFrameBuffer() during
139 * the process of someone setting up renderbuffers, etc.
141 /*_mesa_debug(ctx, "DrawBuffer: incomplete user FBO\n");*/
145 /* Check some stencil invariants. These should probably be in
146 * emit_depthbuffer().
148 if (irbStencil
&& irbStencil
->region
) {
149 if (!intel
->has_separate_stencil
)
150 assert(irbStencil
->Base
.Format
== MESA_FORMAT_S8_Z24
);
151 if (fb_has_hiz
|| intel
->must_use_separate_stencil
)
152 assert(irbStencil
->Base
.Format
== MESA_FORMAT_S8
);
153 if (irbStencil
->Base
.Format
== MESA_FORMAT_S8
)
154 assert(intel
->has_separate_stencil
);
157 /* Mesa's Stencil._Enabled field is updated when
158 * _NEW_BUFFERS | _NEW_STENCIL, but i965 code assumes that the value
159 * only changes with _NEW_STENCIL (which seems sensible). So flag it
160 * here since this is the _NEW_BUFFERS path.
162 intel
->NewGLState
|= (_NEW_DEPTH
| _NEW_STENCIL
);
164 /* The driver uses this in places that need to look up
165 * renderbuffers' buffer objects.
167 intel
->NewGLState
|= _NEW_BUFFERS
;
169 /* update viewport/scissor since it depends on window size */
170 intel
->NewGLState
|= _NEW_VIEWPORT
| _NEW_SCISSOR
;
172 /* Update culling direction which changes depending on the
173 * orientation of the buffer:
175 intel
->NewGLState
|= _NEW_POLYGON
;
179 * called from intel_batchbuffer_flush and children before sending a
182 static void brw_finish_batch(struct intel_context
*intel
)
184 struct brw_context
*brw
= brw_context(&intel
->ctx
);
185 brw_emit_query_end(brw
);
187 if (brw
->curbe
.curbe_bo
) {
188 drm_intel_gem_bo_unmap_gtt(brw
->curbe
.curbe_bo
);
189 drm_intel_bo_unreference(brw
->curbe
.curbe_bo
);
190 brw
->curbe
.curbe_bo
= NULL
;
196 * called from intelFlushBatchLocked
198 static void brw_new_batch( struct intel_context
*intel
)
200 struct brw_context
*brw
= brw_context(&intel
->ctx
);
202 /* Mark all context state as needing to be re-emitted.
203 * This is probably not as severe as on 915, since almost all of our state
204 * is just in referenced buffers.
206 brw
->state
.dirty
.brw
|= BRW_NEW_CONTEXT
| BRW_NEW_BATCH
;
208 /* Assume that the last command before the start of our batch was a
209 * primitive, for safety.
211 intel
->batch
.need_workaround_flush
= true;
213 brw
->state_batch_count
= 0;
215 brw
->vb
.nr_current_buffers
= 0;
218 /* Mark that the current program cache BO has been used by the GPU.
219 * It will be reallocated if we need to put new programs in for the
222 brw
->cache
.bo_used_by_gpu
= true;
225 static void brw_invalidate_state( struct intel_context
*intel
, GLuint new_state
)
231 * \see intel_context.vtbl.is_hiz_depth_format
233 static bool brw_is_hiz_depth_format(struct intel_context
*intel
,
236 /* In the future, this will support Z_FLOAT32. */
237 return intel
->has_hiz
&& (format
== MESA_FORMAT_X8_Z24
);
241 void brwInitVtbl( struct brw_context
*brw
)
243 brw
->intel
.vtbl
.check_vertex_size
= 0;
244 brw
->intel
.vtbl
.emit_state
= 0;
245 brw
->intel
.vtbl
.reduced_primitive_state
= 0;
246 brw
->intel
.vtbl
.render_start
= 0;
247 brw
->intel
.vtbl
.update_texture_state
= 0;
249 brw
->intel
.vtbl
.invalidate_state
= brw_invalidate_state
;
250 brw
->intel
.vtbl
.new_batch
= brw_new_batch
;
251 brw
->intel
.vtbl
.finish_batch
= brw_finish_batch
;
252 brw
->intel
.vtbl
.destroy
= brw_destroy_context
;
253 brw
->intel
.vtbl
.update_draw_buffer
= brw_update_draw_buffer
;
254 brw
->intel
.vtbl
.debug_batch
= brw_debug_batch
;
255 brw
->intel
.vtbl
.render_target_supported
= brw_render_target_supported
;
256 brw
->intel
.vtbl
.is_hiz_depth_format
= brw_is_hiz_depth_format
;