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i915g: switch rendering to mipmapped textures to (x,y) offsets

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Byte offsets simply don't work with tiled render targets when using
tiling bits. Luckily we can cox the hw into doing the right thing
with the DRAWING_RECT command by disabling the drawing rect offset
for the depth buffer.

Minor fixes by Jakob Bornecrantz.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Jakob Bornecrantz <wallbraker@gmail.com>
Signed-off-by: Jakob Bornecrantz <wallbraker@gmail.com>
This commit is contained in:
Daniel Vetter 2010-12-01 21:04:56 +01:00 • committed by Jakob Bornecrantz
parent 9493fe85d1
commit 8af684e37e
3 changed files with 29 additions and 9 deletions
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1
src/gallium/drivers/i915/i915_reg.h
View file

@ -851,6 +851,7 @@
#define MI_FLUSH ((0<<29)|(4<<23))
#define FLUSH_MAP_CACHE (1<<0)
#define INHIBIT_FLUSH_RENDER_CACHE (1<<2)
#define MI_NOOP 0
#define CMD_3D (0x3<<29)

34
src/gallium/drivers/i915/i915_state_emit.c
View file

@ -248,7 +248,7 @@ i915_emit_hardware_state(struct i915_context *i915 )
OUT_RELOC(tex->buffer,
I915_USAGE_RENDER,
cbuf_surface->offset);
0);
}
/* What happens if no zbuf??
@ -405,18 +405,34 @@ i915_emit_hardware_state(struct i915_context *i915 )
#if 01
/* drawing surface size */
/* 6 dwords, 0 relocs */
if (i915->hardware_dirty & I915_HW_STATIC)
{
uint w, h;
boolean k = framebuffer_size(&i915->framebuffer, &w, &h);
(void)k;
assert(k);
struct pipe_surface *cbuf_surface = i915->framebuffer.cbufs[0];
struct i915_texture *tex = i915_texture(cbuf_surface->texture);
unsigned x, y;
int face;
uint32_t draw_offset;
boolean ret;
ret = framebuffer_size(&i915->framebuffer, &w, &h);
assert(ret);
face = tex->b.b.target == PIPE_TEXTURE_CUBE ?
cbuf_surface->face : cbuf_surface->zslice;
x = tex->image_offset[cbuf_surface->level][face].nblocksx;
y = tex->image_offset[cbuf_surface->level][face].nblocksy;
draw_offset = x | (y << 16);
/* XXX flush only required when the draw_offset changes! */
OUT_BATCH(MI_FLUSH | INHIBIT_FLUSH_RENDER_CACHE);
OUT_BATCH(_3DSTATE_DRAW_RECT_CMD);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(((w - 1) & 0xffff) | ((h - 1) << 16));
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(DRAW_RECT_DIS_DEPTH_OFS);
OUT_BATCH(draw_offset);
OUT_BATCH((w - 1 + x) | ((h - 1 + y) << 16));
OUT_BATCH(draw_offset);
}
#endif

3
src/gallium/drivers/i915/i915_surface.c
View file

@ -193,6 +193,9 @@ i915_get_tex_surface(struct pipe_screen *screen,
ps->height = u_minify(pt->height0, level);
ps->offset = offset;
ps->usage = flags;
ps->zslice = zslice;
ps->level = level;
ps->face = face;
}
return ps;
}