+/*
+ 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 "util/u_memory.h"
+#include "util/u_simple_list.h"
#include "pipe/p_screen.h"
#include "brw_screen.h"
+#include "brw_defines.h"
-
-/**
- * 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 void
-brw_update_renderbuffer_surface(struct brw_context *brw,
- struct gl_renderbuffer *rb,
- unsigned int unit)
-{
- struct brw_winsys_buffer *region_bo = NULL;
- struct intel_renderbuffer *irb = intel_renderbuffer(rb);
- struct intel_region *region = irb ? irb->region : NULL;
- struct {
- unsigned int surface_type;
- unsigned int surface_format;
- unsigned int width, height, pitch, cpp;
- GLubyte color_mask[4];
- GLboolean color_blend;
- uint32_t tiling;
- uint32_t draw_offset;
- } key;
-
- memset(&key, 0, sizeof(key));
-
- if (region != NULL) {
- region_bo = region->buffer;
-
- key.surface_type = BRW_SURFACE_2D;
- switch (irb->texformat->MesaFormat) {
- case PIPE_FORMAT_ARGB8888:
- key.surface_format = BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
- break;
- case PIPE_FORMAT_RGB565:
- key.surface_format = BRW_SURFACEFORMAT_B5G6R5_UNORM;
- break;
- case PIPE_FORMAT_ARGB1555:
- key.surface_format = BRW_SURFACEFORMAT_B5G5R5A1_UNORM;
- break;
- case PIPE_FORMAT_ARGB4444:
- key.surface_format = BRW_SURFACEFORMAT_B4G4R4A4_UNORM;
- break;
- default:
- debug_printf("Bad renderbuffer format: %d\n",
- irb->texformat->MesaFormat);
- assert(0);
- key.surface_format = BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
- return;
- }
- key.tiling = region->tiling;
- if (brw->intel.intelScreen->driScrnPriv->dri2.enabled) {
- key.width = rb->Width;
- key.height = rb->Height;
- } else {
- key.width = region->width;
- key.height = region->height;
- }
- key.pitch = region->pitch;
- key.cpp = region->cpp;
- key.draw_offset = region->draw_offset; /* cur 3d or cube face offset */
- }
-
- memcpy(key.color_mask, ctx->Color.ColorMask,
- sizeof(key.color_mask));
-
- key.color_blend = (!ctx->Color._LogicOpEnabled &&
- ctx->Color.BlendEnabled);
-
- brw->sws->bo_unreference(brw->wm.surf_bo[unit]);
- brw->wm.surf_bo[unit] = brw_search_cache(&brw->surface_cache,
- BRW_SS_SURFACE,
- &key, sizeof(key),
- ®ion_bo, 1,
- NULL);
-
- if (brw->wm.surf_bo[unit] == NULL) {
- struct brw_surface_state surf;
-
- memset(&surf, 0, sizeof(surf));
-
- surf.ss0.surface_format = key.surface_format;
- surf.ss0.surface_type = key.surface_type;
- if (key.tiling == I915_TILING_NONE) {
- surf.ss1.base_addr = key.draw_offset;
- } else {
- uint32_t tile_offset = key.draw_offset % 4096;
-
- surf.ss1.base_addr = key.draw_offset - tile_offset;
-
- assert(BRW_IS_G4X(brw) || tile_offset == 0);
- if (BRW_IS_G4X(brw)) {
- if (key.tiling == I915_TILING_X) {
- /* Note that the low bits of these fields are missing, so
- * there's the possibility of getting in trouble.
- */
- surf.ss5.x_offset = (tile_offset % 512) / key.cpp / 4;
- surf.ss5.y_offset = tile_offset / 512 / 2;
- } else {
- surf.ss5.x_offset = (tile_offset % 128) / key.cpp / 4;
- surf.ss5.y_offset = tile_offset / 128 / 2;
- }
- }
- }
-
- if (region_bo != NULL)
- surf.ss1.base_addr += region_bo->offset; /* reloc */
-
- surf.ss2.width = key.width - 1;
- surf.ss2.height = key.height - 1;
- brw_set_surface_tiling(&surf, key.tiling);
- surf.ss3.pitch = (key.pitch * key.cpp) - 1;
-
-}
-
-
-
-struct brw_surface_id {
- unsigned face:3;
- unsigned zslice:13;
- unsigned level:16;
+enum {
+ BRW_VIEW_LINEAR,
+ BRW_VIEW_IN_PLACE
};
+
static boolean need_linear_view( struct brw_screen *brw_screen,
struct brw_texture *brw_texture,
- unsigned face,
- unsigned level,
- unsigned zslice )
+ union brw_surface_id id,
+ unsigned usage )
{
#if 0
/* XXX: what about IDGNG?
/* Look at all texture views and figure out if any of them need to be
* back-copied into the texture for sampling
*/
-void brw_update_texture( struct pipe_screen *screen,
- struct pipe_texture *texture )
+void brw_update_texture( struct brw_screen *brw_screen,
+ struct brw_texture *tex )
{
/* currently nothing to do */
}
-static struct pipe_surface *create_linear_view( struct brw_screen *brw_screen,
- struct brw_texture *brw_tex,
- struct brw_surface_id id )
+/* Create a new surface with linear layout to serve as a render-target
+ * where it would be illegal (perhaps due to tiling constraints) to do
+ * this in-place.
+ *
+ * Currently not implmented, not sure if it's needed.
+ */
+static struct brw_surface *create_linear_view( struct brw_screen *brw_screen,
+ struct brw_texture *tex,
+ union brw_surface_id id,
+ unsigned usage )
{
-
+ return NULL;
}
-static struct pipe_surface *create_in_place_view( struct brw_screen *brw_screen,
- struct brw_texture *brw_tex,
- struct brw_surface_id id )
+
+/* Create a pipe_surface that just points directly into the existing
+ * texture's storage.
+ */
+static struct brw_surface *create_in_place_view( struct brw_screen *brw_screen,
+ struct brw_texture *tex,
+ union brw_surface_id id,
+ unsigned usage )
{
- struct brw_surface *surface = CALLOC_STRUCT(brw_surface);
+ struct brw_surface *surface;
+
+ surface = CALLOC_STRUCT(brw_surface);
+ if (surface == NULL)
+ return NULL;
+
+ /* XXX: ignoring render-to-slice-of-3d-texture
+ */
+ assert(id.bits.zslice == 0);
+
+ surface->base.format = tex->base.format;
+ surface->base.width = tex->base.width[id.bits.level];
+ surface->base.height = tex->base.height[id.bits.level];
+ surface->base.offset = tex->image_offset[id.bits.level][id.bits.face];
+ surface->base.usage = usage;
+ surface->base.zslice = id.bits.zslice;
+ surface->base.face = id.bits.face;
+ surface->base.level = id.bits.level;
surface->id = id;
-
+
+ pipe_texture_reference( &surface->base.texture, &tex->base );
+
+ surface->ss.ss0.surface_format = tex->ss.ss0.surface_format;
+ surface->ss.ss0.surface_type = BRW_SURFACE_2D;
+
+ if (tex->tiling == BRW_TILING_NONE) {
+ surface->ss.ss1.base_addr = surface->base.offset;
+ } else {
+ uint32_t tile_offset = surface->base.offset % 4096;
+
+ surface->ss.ss1.base_addr = surface->base.offset - tile_offset;
+
+ if (brw_screen->chipset.is_g4x) {
+ if (tex->tiling == BRW_TILING_X) {
+ /* Note that the low bits of these fields are missing, so
+ * there's the possibility of getting in trouble.
+ */
+ surface->ss.ss5.x_offset = (tile_offset % 512) / tex->cpp / 4;
+ surface->ss.ss5.y_offset = tile_offset / 512 / 2;
+ } else {
+ surface->ss.ss5.x_offset = (tile_offset % 128) / tex->cpp / 4;
+ surface->ss.ss5.y_offset = tile_offset / 128 / 2;
+ }
+ }
+ else {
+ assert(tile_offset == 0);
+ }
+ }
+
+#if 0
+ if (region_bo != NULL)
+ surface->ss.ss1.base_addr += region_bo->offset; /* reloc */
+#endif
+
+ surface->ss.ss2.width = surface->base.width - 1;
+ surface->ss.ss2.height = surface->base.height - 1;
+ surface->ss.ss3.tiled_surface = tex->ss.ss3.tiled_surface;
+ surface->ss.ss3.tile_walk = tex->ss.ss3.tile_walk;
+ surface->ss.ss3.pitch = tex->ss.ss3.pitch;
+
+ return surface;
}
/* Get a surface which is view into a texture
*/
-struct pipe_surface *brw_get_tex_surface(struct pipe_screen *screen,
- struct pipe_texture *texture,
- unsigned face, unsigned level,
- unsigned zslice,
- unsigned usage )
+static struct pipe_surface *brw_get_tex_surface(struct pipe_screen *screen,
+ struct pipe_texture *pt,
+ unsigned face, unsigned level,
+ unsigned zslice,
+ unsigned usage )
{
+ struct brw_texture *tex = brw_texture(pt);
struct brw_screen *bscreen = brw_screen(screen);
- struct brw_surface_id id;
+ struct brw_surface *surface;
+ union brw_surface_id id;
+ int type;
- id.face = face;
- id.level = level;
- id.zslice = zslice;
+ id.bits.face = face;
+ id.bits.level = level;
+ id.bits.zslice = zslice;
- if (need_linear_view(brw_screen, brw_tex, id))
+ if (need_linear_view(bscreen, tex, id, usage))
type = BRW_VIEW_LINEAR;
else
type = BRW_VIEW_IN_PLACE;
- foreach (surface, texture->views[type]) {
+ foreach (surface, &tex->views[type]) {
if (id.value == surface->id.value)
- return surface;
+ return &surface->base;
}
switch (type) {
case BRW_VIEW_LINEAR:
- surface = create_linear_view( texture, id, type );
+ surface = create_linear_view( bscreen, tex, id, usage );
break;
case BRW_VIEW_IN_PLACE:
- surface = create_in_place_view( texture, id, type );
+ surface = create_in_place_view( bscreen, tex, id, usage );
break;
default:
return NULL;
}
- insert_at_head( texture->views[type], surface );
- return surface;
+ insert_at_head( &tex->views[type], surface );
+ return &surface->base;
+}
+
+
+static void brw_tex_surface_destroy( struct pipe_surface *surface )
+{
+ /* Unreference texture, shared buffer:
+ */
+
+ FREE(surface);
}
-void brw_tex_surface_destroy( struct pipe_surface *surface )
+void brw_screen_tex_surface_init( struct brw_screen *brw_screen )
{
+ brw_screen->base.get_tex_surface = brw_get_tex_surface;
+ brw_screen->base.tex_surface_destroy = brw_tex_surface_destroy;
}
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