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"
54 #include "glsl/ralloc.h"
57 dri_bo_release(drm_intel_bo
**bo
)
59 drm_intel_bo_unreference(*bo
);
65 * called from intelDestroyContext()
67 static void brw_destroy_context( struct intel_context
*intel
)
69 struct brw_context
*brw
= brw_context(&intel
->ctx
);
71 brw_destroy_state(brw
);
72 brw_draw_destroy( brw
);
73 ralloc_free(brw
->wm
.compile_data
);
75 dri_bo_release(&brw
->curbe
.curbe_bo
);
76 dri_bo_release(&brw
->vs
.const_bo
);
77 dri_bo_release(&brw
->wm
.const_bo
);
79 free(brw
->curbe
.last_buf
);
80 free(brw
->curbe
.next_buf
);
84 * Update the hardware state for drawing into a window or framebuffer object.
86 * Called by glDrawBuffer, glBindFramebufferEXT, MakeCurrent, and other
87 * places within the driver.
89 * Basically, this needs to be called any time the current framebuffer
90 * changes, the renderbuffers change, or we need to draw into different
94 brw_update_draw_buffer(struct intel_context
*intel
)
96 struct gl_context
*ctx
= &intel
->ctx
;
97 struct gl_framebuffer
*fb
= ctx
->DrawBuffer
;
100 /* this can happen during the initial context initialization */
104 /* Do this here, not core Mesa, since this function is called from
105 * many places within the driver.
107 if (ctx
->NewState
& _NEW_BUFFERS
) {
108 /* this updates the DrawBuffer->_NumColorDrawBuffers fields, etc */
109 _mesa_update_framebuffer(ctx
);
110 /* this updates the DrawBuffer's Width/Height if it's a FBO */
111 _mesa_update_draw_buffer_bounds(ctx
);
114 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
115 /* this may occur when we're called by glBindFrameBuffer() during
116 * the process of someone setting up renderbuffers, etc.
118 /*_mesa_debug(ctx, "DrawBuffer: incomplete user FBO\n");*/
122 /* Mesa's Stencil._Enabled field is updated when
123 * _NEW_BUFFERS | _NEW_STENCIL, but i965 code assumes that the value
124 * only changes with _NEW_STENCIL (which seems sensible). So flag it
125 * here since this is the _NEW_BUFFERS path.
127 intel
->NewGLState
|= (_NEW_DEPTH
| _NEW_STENCIL
);
129 /* The driver uses this in places that need to look up
130 * renderbuffers' buffer objects.
132 intel
->NewGLState
|= _NEW_BUFFERS
;
134 /* update viewport/scissor since it depends on window size */
135 intel
->NewGLState
|= _NEW_VIEWPORT
| _NEW_SCISSOR
;
137 /* Update culling direction which changes depending on the
138 * orientation of the buffer:
140 intel
->NewGLState
|= _NEW_POLYGON
;
144 * called from intel_batchbuffer_flush and children before sending a
147 static void brw_finish_batch(struct intel_context
*intel
)
149 struct brw_context
*brw
= brw_context(&intel
->ctx
);
150 brw_emit_query_end(brw
);
152 if (brw
->curbe
.curbe_bo
) {
153 drm_intel_gem_bo_unmap_gtt(brw
->curbe
.curbe_bo
);
154 drm_intel_bo_unreference(brw
->curbe
.curbe_bo
);
155 brw
->curbe
.curbe_bo
= NULL
;
161 * called from intelFlushBatchLocked
163 static void brw_new_batch( struct intel_context
*intel
)
165 struct brw_context
*brw
= brw_context(&intel
->ctx
);
167 /* Mark all context state as needing to be re-emitted.
168 * This is probably not as severe as on 915, since almost all of our state
169 * is just in referenced buffers.
171 brw
->state
.dirty
.brw
|= BRW_NEW_CONTEXT
| BRW_NEW_BATCH
;
173 /* Assume that the last command before the start of our batch was a
174 * primitive, for safety.
176 intel
->batch
.need_workaround_flush
= true;
178 brw
->state_batch_count
= 0;
180 brw
->vb
.nr_current_buffers
= 0;
183 /* Mark that the current program cache BO has been used by the GPU.
184 * It will be reallocated if we need to put new programs in for the
187 brw
->cache
.bo_used_by_gpu
= true;
190 static void brw_invalidate_state( struct intel_context
*intel
, GLuint new_state
)
196 * \see intel_context.vtbl.is_hiz_depth_format
198 static bool brw_is_hiz_depth_format(struct intel_context
*intel
,
205 case MESA_FORMAT_X8_Z24
:
206 case MESA_FORMAT_S8_Z24
:
213 void brwInitVtbl( struct brw_context
*brw
)
215 brw
->intel
.vtbl
.check_vertex_size
= 0;
216 brw
->intel
.vtbl
.emit_state
= 0;
217 brw
->intel
.vtbl
.reduced_primitive_state
= 0;
218 brw
->intel
.vtbl
.render_start
= 0;
219 brw
->intel
.vtbl
.update_texture_state
= 0;
221 brw
->intel
.vtbl
.invalidate_state
= brw_invalidate_state
;
222 brw
->intel
.vtbl
.new_batch
= brw_new_batch
;
223 brw
->intel
.vtbl
.finish_batch
= brw_finish_batch
;
224 brw
->intel
.vtbl
.destroy
= brw_destroy_context
;
225 brw
->intel
.vtbl
.update_draw_buffer
= brw_update_draw_buffer
;
226 brw
->intel
.vtbl
.debug_batch
= brw_debug_batch
;
227 brw
->intel
.vtbl
.render_target_supported
= brw_render_target_supported
;
228 brw
->intel
.vtbl
.is_hiz_depth_format
= brw_is_hiz_depth_format
;
230 if (brw
->intel
.has_hiz
) {
231 brw
->intel
.vtbl
.resolve_depth_slice
= gen6_resolve_depth_slice
;
232 brw
->intel
.vtbl
.resolve_hiz_slice
= gen6_resolve_hiz_slice
;
235 if (brw
->intel
.gen
>= 7) {
236 gen7_init_vtable_surface_functions(brw
);
237 } else if (brw
->intel
.gen
>= 4) {
238 gen4_init_vtable_surface_functions(brw
);