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Diffstat (limited to 'src/gallium/drivers/i965/brw_wm_surface_state.c')
-rw-r--r--src/gallium/drivers/i965/brw_wm_surface_state.c294
1 files changed, 294 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965/brw_wm_surface_state.c b/src/gallium/drivers/i965/brw_wm_surface_state.c
new file mode 100644
index 00000000000..f92b8198ed3
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_wm_surface_state.c
@@ -0,0 +1,294 @@
+/*
+ Copyright (C) Intel Corp. 2006. All Rights Reserved.
+ Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ develop this 3D driver.
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice (including the
+ next paragraph) shall be included in all copies or substantial
+ portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+ **********************************************************************/
+ /*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "pipe/p_format.h"
+
+#include "brw_batchbuffer.h"
+#include "brw_context.h"
+#include "brw_state.h"
+#include "brw_defines.h"
+#include "brw_screen.h"
+
+
+
+
+static enum pipe_error
+brw_update_texture_surface( struct brw_context *brw,
+ struct brw_texture *tex,
+ struct brw_winsys_buffer **bo_out)
+{
+ struct brw_winsys_reloc reloc[1];
+ enum pipe_error ret;
+
+ /* Emit relocation to surface contents */
+ make_reloc(&reloc[0],
+ BRW_USAGE_SAMPLER,
+ 0,
+ offsetof(struct brw_surface_state, ss1),
+ tex->bo);
+
+ if (brw_search_cache(&brw->surface_cache,
+ BRW_SS_SURFACE,
+ &tex->ss, sizeof tex->ss,
+ reloc, Elements(reloc),
+ NULL,
+ bo_out))
+ return PIPE_OK;
+
+ ret = brw_upload_cache(&brw->surface_cache, BRW_SS_SURFACE,
+ &tex->ss, sizeof tex->ss,
+ reloc, Elements(reloc),
+ &tex->ss, sizeof tex->ss,
+ NULL, NULL,
+ bo_out);
+ if (ret)
+ return ret;
+
+ return PIPE_OK;
+}
+
+
+
+
+
+
+
+
+/**
+ * Sets up a surface state structure to point at the given region.
+ * While it is only used for the front/back buffer currently, it should be
+ * usable for further buffers when doing ARB_draw_buffer support.
+ */
+static enum pipe_error
+brw_update_render_surface(struct brw_context *brw,
+ struct brw_surface *surface,
+ struct brw_winsys_buffer **bo_out)
+{
+ struct brw_surf_ss0 blend_ss0 = brw->curr.blend->ss0;
+ struct brw_surface_state ss;
+ struct brw_winsys_reloc reloc[1];
+ enum pipe_error ret;
+
+ /* XXX: we will only be rendering to this surface:
+ */
+ make_reloc(&reloc[0],
+ BRW_USAGE_RENDER_TARGET,
+ 0,
+ offsetof(struct brw_surface_state, ss1),
+ surface->bo);
+
+ /* Surfaces are potentially shared between contexts, so can't
+ * scribble the in-place ss0 value in the surface.
+ */
+ memcpy(&ss, &surface->ss, sizeof ss);
+
+ ss.ss0.color_blend = blend_ss0.color_blend;
+ ss.ss0.writedisable_blue = blend_ss0.writedisable_blue;
+ ss.ss0.writedisable_green = blend_ss0.writedisable_green;
+ ss.ss0.writedisable_red = blend_ss0.writedisable_red;
+ ss.ss0.writedisable_alpha = blend_ss0.writedisable_alpha;
+
+ if (brw_search_cache(&brw->surface_cache,
+ BRW_SS_SURFACE,
+ &ss, sizeof(ss),
+ reloc, Elements(reloc),
+ NULL,
+ bo_out))
+ return PIPE_OK;
+
+ ret = brw_upload_cache(&brw->surface_cache,
+ BRW_SS_SURFACE,
+ &ss, sizeof ss,
+ reloc, Elements(reloc),
+ &ss, sizeof ss,
+ NULL, NULL,
+ bo_out);
+ if (ret)
+ return ret;
+
+ return PIPE_OK;
+}
+
+
+/**
+ * Constructs the binding table for the WM surface state, which maps unit
+ * numbers to surface state objects.
+ */
+static enum pipe_error
+brw_wm_get_binding_table(struct brw_context *brw,
+ struct brw_winsys_buffer **bo_out )
+{
+ enum pipe_error ret;
+ struct brw_winsys_reloc reloc[BRW_WM_MAX_SURF];
+ uint32_t data[BRW_WM_MAX_SURF];
+ GLuint nr_relocs = 0;
+ GLuint data_size = brw->wm.nr_surfaces * sizeof data[0];
+ int i;
+
+ assert(brw->wm.nr_surfaces <= BRW_WM_MAX_SURF);
+ assert(brw->wm.nr_surfaces > 0);
+
+ /* Emit binding table relocations to surface state
+ */
+ for (i = 0; i < brw->wm.nr_surfaces; i++) {
+ if (brw->wm.surf_bo[i]) {
+ make_reloc(&reloc[nr_relocs++],
+ BRW_USAGE_STATE,
+ 0,
+ i * sizeof(GLuint),
+ brw->wm.surf_bo[i]);
+ }
+ }
+
+ /* Note there is no key for this search beyond the values in the
+ * relocation array:
+ */
+ if (brw_search_cache(&brw->surface_cache, BRW_SS_SURF_BIND,
+ NULL, 0,
+ reloc, nr_relocs,
+ NULL,
+ bo_out))
+ return PIPE_OK;
+
+ /* Upload zero data, will all be overwitten with relocation
+ * offsets:
+ */
+ for (i = 0; i < brw->wm.nr_surfaces; i++)
+ data[i] = 0;
+
+ ret = brw_upload_cache( &brw->surface_cache, BRW_SS_SURF_BIND,
+ NULL, 0,
+ reloc, nr_relocs,
+ data, data_size,
+ NULL, NULL,
+ bo_out);
+ if (ret)
+ return ret;
+
+ return PIPE_OK;
+}
+
+static enum pipe_error prepare_wm_surfaces(struct brw_context *brw )
+{
+ enum pipe_error ret;
+ int nr_surfaces = 0;
+ GLuint i;
+
+ /* PIPE_NEW_COLOR_BUFFERS | PIPE_NEW_BLEND
+ *
+ * Update surfaces for drawing buffers. Mixes in colormask and
+ * blend state.
+ *
+ * XXX: no color buffer case
+ */
+ for (i = 0; i < brw->curr.fb.nr_cbufs; i++) {
+ ret = brw_update_render_surface(brw,
+ brw_surface(brw->curr.fb.cbufs[i]),
+ &brw->wm.surf_bo[BTI_COLOR_BUF(i)]);
+ if (ret)
+ return ret;
+
+ nr_surfaces = BTI_COLOR_BUF(i) + 1;
+ }
+
+
+
+ /* PIPE_NEW_FRAGMENT_CONSTANTS
+ */
+#if 0
+ if (brw->curr.fragment_constants) {
+ ret = brw_update_fragment_constant_surface(
+ brw,
+ brw->curr.fragment_constants,
+ &brw->wm.surf_bo[BTI_FRAGMENT_CONSTANTS]);
+
+ if (ret)
+ return ret;
+
+ nr_surfaces = BTI_FRAGMENT_CONSTANTS + 1;
+ }
+ else {
+ bo_reference(&brw->wm.surf_bo[SURF_FRAG_CONSTANTS], NULL);
+ }
+#endif
+
+
+ /* PIPE_NEW_TEXTURE
+ */
+ for (i = 0; i < brw->curr.num_textures; i++) {
+ ret = brw_update_texture_surface(brw,
+ brw_texture(brw->curr.texture[i]),
+ &brw->wm.surf_bo[BTI_TEXTURE(i)]);
+ if (ret)
+ return ret;
+
+ nr_surfaces = BTI_TEXTURE(i) + 1;
+ }
+
+ /* Clear any inactive entries:
+ */
+ for (i = brw->curr.fb.nr_cbufs; i < BRW_MAX_DRAW_BUFFERS; i++)
+ bo_reference(&brw->wm.surf_bo[BTI_COLOR_BUF(i)], NULL);
+
+ if (!brw->curr.fragment_constants)
+ bo_reference(&brw->wm.surf_bo[BTI_FRAGMENT_CONSTANTS], NULL);
+
+ /* XXX: no pipe_max_textures define?? */
+ for (i = brw->curr.num_textures; i < PIPE_MAX_SAMPLERS; i++)
+ bo_reference(&brw->wm.surf_bo[BTI_TEXTURE(i)], NULL);
+
+ if (brw->wm.nr_surfaces != nr_surfaces) {
+ brw->wm.nr_surfaces = nr_surfaces;
+ brw->state.dirty.brw |= BRW_NEW_NR_WM_SURFACES;
+ }
+
+ ret = brw_wm_get_binding_table(brw, &brw->wm.bind_bo);
+ if (ret)
+ return ret;
+
+ return PIPE_OK;
+}
+
+const struct brw_tracked_state brw_wm_surfaces = {
+ .dirty = {
+ .mesa = (PIPE_NEW_COLOR_BUFFERS |
+ PIPE_NEW_BOUND_TEXTURES |
+ PIPE_NEW_FRAGMENT_CONSTANTS |
+ PIPE_NEW_BLEND),
+ .brw = (BRW_NEW_CONTEXT |
+ BRW_NEW_WM_SURFACES),
+ .cache = 0
+ },
+ .prepare = prepare_wm_surfaces,
+};
+
+
+
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