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 "gen6_blorp.h"
53 #include "gen7_blorp.h"
55 #include "glsl/ralloc.h"
58 dri_bo_release(drm_intel_bo
**bo
)
60 drm_intel_bo_unreference(*bo
);
66 * called from intelDestroyContext()
68 static void brw_destroy_context( struct intel_context
*intel
)
70 struct brw_context
*brw
= brw_context(&intel
->ctx
);
72 brw_destroy_state(brw
);
73 brw_draw_destroy( brw
);
75 ralloc_free(brw
->wm
.compile_data
);
77 dri_bo_release(&brw
->curbe
.curbe_bo
);
78 dri_bo_release(&brw
->vs
.const_bo
);
79 dri_bo_release(&brw
->wm
.const_bo
);
81 free(brw
->curbe
.last_buf
);
82 free(brw
->curbe
.next_buf
);
84 drm_intel_gem_context_destroy(intel
->hw_ctx
);
88 * Update the hardware state for drawing into a window or framebuffer object.
90 * Called by glDrawBuffer, glBindFramebufferEXT, MakeCurrent, and other
91 * places within the driver.
93 * Basically, this needs to be called any time the current framebuffer
94 * changes, the renderbuffers change, or we need to draw into different
98 brw_update_draw_buffer(struct intel_context
*intel
)
100 struct gl_context
*ctx
= &intel
->ctx
;
101 struct gl_framebuffer
*fb
= ctx
->DrawBuffer
;
104 /* this can happen during the initial context initialization */
108 /* Do this here, not core Mesa, since this function is called from
109 * many places within the driver.
111 if (ctx
->NewState
& _NEW_BUFFERS
) {
112 /* this updates the DrawBuffer->_NumColorDrawBuffers fields, etc */
113 _mesa_update_framebuffer(ctx
);
114 /* this updates the DrawBuffer's Width/Height if it's a FBO */
115 _mesa_update_draw_buffer_bounds(ctx
);
118 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
119 /* this may occur when we're called by glBindFrameBuffer() during
120 * the process of someone setting up renderbuffers, etc.
122 /*_mesa_debug(ctx, "DrawBuffer: incomplete user FBO\n");*/
126 /* Mesa's Stencil._Enabled field is updated when
127 * _NEW_BUFFERS | _NEW_STENCIL, but i965 code assumes that the value
128 * only changes with _NEW_STENCIL (which seems sensible). So flag it
129 * here since this is the _NEW_BUFFERS path.
131 intel
->NewGLState
|= (_NEW_DEPTH
| _NEW_STENCIL
);
133 /* The driver uses this in places that need to look up
134 * renderbuffers' buffer objects.
136 intel
->NewGLState
|= _NEW_BUFFERS
;
138 /* update viewport/scissor since it depends on window size */
139 intel
->NewGLState
|= _NEW_VIEWPORT
| _NEW_SCISSOR
;
141 /* Update culling direction which changes depending on the
142 * orientation of the buffer:
144 intel
->NewGLState
|= _NEW_POLYGON
;
148 * called from intel_batchbuffer_flush and children before sending a
151 static void brw_finish_batch(struct intel_context
*intel
)
153 struct brw_context
*brw
= brw_context(&intel
->ctx
);
154 brw_emit_query_end(brw
);
156 if (brw
->curbe
.curbe_bo
) {
157 drm_intel_gem_bo_unmap_gtt(brw
->curbe
.curbe_bo
);
158 drm_intel_bo_unreference(brw
->curbe
.curbe_bo
);
159 brw
->curbe
.curbe_bo
= NULL
;
165 * called from intelFlushBatchLocked
167 static void brw_new_batch( struct intel_context
*intel
)
169 struct brw_context
*brw
= brw_context(&intel
->ctx
);
171 /* If the kernel supports hardware contexts, then most hardware state is
172 * preserved between batches; we only need to re-emit state that is required
173 * to be in every batch. Otherwise we need to re-emit all the state that
174 * would otherwise be stored in the context (which for all intents and
175 * purposes means everything).
177 if (intel
->hw_ctx
== NULL
)
178 brw
->state
.dirty
.brw
|= BRW_NEW_CONTEXT
;
180 brw
->state
.dirty
.brw
|= BRW_NEW_BATCH
;
182 /* Assume that the last command before the start of our batch was a
183 * primitive, for safety.
185 intel
->batch
.need_workaround_flush
= true;
187 brw
->state_batch_count
= 0;
189 /* Gen7 needs to track what the real transform feedback vertex count was at
190 * the start of the batch, since the kernel will be resetting the offset to
193 brw
->sol
.offset_0_batch_start
= brw
->sol
.svbi_0_starting_index
;
195 brw
->vb
.nr_current_buffers
= 0;
198 /* Mark that the current program cache BO has been used by the GPU.
199 * It will be reallocated if we need to put new programs in for the
202 brw
->cache
.bo_used_by_gpu
= true;
205 static void brw_invalidate_state( struct intel_context
*intel
, GLuint new_state
)
211 * \see intel_context.vtbl.is_hiz_depth_format
213 static bool brw_is_hiz_depth_format(struct intel_context
*intel
,
220 case MESA_FORMAT_Z32_FLOAT
:
221 case MESA_FORMAT_Z32_FLOAT_X24S8
:
222 case MESA_FORMAT_X8_Z24
:
223 case MESA_FORMAT_S8_Z24
:
230 void brwInitVtbl( struct brw_context
*brw
)
232 brw
->intel
.vtbl
.check_vertex_size
= 0;
233 brw
->intel
.vtbl
.emit_state
= 0;
234 brw
->intel
.vtbl
.reduced_primitive_state
= 0;
235 brw
->intel
.vtbl
.render_start
= 0;
236 brw
->intel
.vtbl
.update_texture_state
= 0;
238 brw
->intel
.vtbl
.invalidate_state
= brw_invalidate_state
;
239 brw
->intel
.vtbl
.new_batch
= brw_new_batch
;
240 brw
->intel
.vtbl
.finish_batch
= brw_finish_batch
;
241 brw
->intel
.vtbl
.destroy
= brw_destroy_context
;
242 brw
->intel
.vtbl
.update_draw_buffer
= brw_update_draw_buffer
;
243 brw
->intel
.vtbl
.debug_batch
= brw_debug_batch
;
244 brw
->intel
.vtbl
.annotate_aub
= brw_annotate_aub
;
245 brw
->intel
.vtbl
.render_target_supported
= brw_render_target_supported
;
246 brw
->intel
.vtbl
.is_hiz_depth_format
= brw_is_hiz_depth_format
;
248 if (brw
->intel
.gen
>= 7) {
249 gen7_init_vtable_surface_functions(brw
);
250 } else if (brw
->intel
.gen
>= 4) {
251 gen4_init_vtable_surface_functions(brw
);