From: Daniel Vetter Date: Mon, 14 Mar 2011 21:13:01 +0000 (+0100) Subject: i915g: implement early z X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=11ee41fe7f72f7136b531f0c51f820e90a610a79;p=mesa.git i915g: implement early z v2: Make it actually work. Signed-off-by: Daniel Vetter --- diff --git a/src/gallium/drivers/i915/i915_reg.h b/src/gallium/drivers/i915/i915_reg.h index 5e4e80ddf6b..6fe032cdb6e 100644 --- a/src/gallium/drivers/i915/i915_reg.h +++ b/src/gallium/drivers/i915/i915_reg.h @@ -148,6 +148,7 @@ /* p161 */ #define _3DSTATE_DST_BUF_VARS_CMD (CMD_3D | (0x1d<<24) | (0x85<<16)) /* Dword 1 */ +#define CLASSIC_EARLY_DEPTH (1<<31) #define TEX_DEFAULT_COLOR_OGL (0<<30) #define TEX_DEFAULT_COLOR_D3D (1<<30) #define ZR_EARLY_DEPTH (1<<29) diff --git a/src/gallium/drivers/i915/i915_state.h b/src/gallium/drivers/i915/i915_state.h index b4074dc35ba..3f4e40294e6 100644 --- a/src/gallium/drivers/i915/i915_state.h +++ b/src/gallium/drivers/i915/i915_state.h @@ -48,6 +48,7 @@ extern struct i915_tracked_state i915_hw_immediate; extern struct i915_tracked_state i915_hw_dynamic; extern struct i915_tracked_state i915_hw_fs; extern struct i915_tracked_state i915_hw_framebuffer; +extern struct i915_tracked_state i915_hw_dst_buf_vars; extern struct i915_tracked_state i915_hw_constants; void i915_update_derived(struct i915_context *i915); diff --git a/src/gallium/drivers/i915/i915_state_derived.c b/src/gallium/drivers/i915/i915_state_derived.c index 1d4026a214e..59ac2f7292a 100644 --- a/src/gallium/drivers/i915/i915_state_derived.c +++ b/src/gallium/drivers/i915/i915_state_derived.c @@ -165,6 +165,7 @@ static struct i915_tracked_state *atoms[] = { &i915_hw_dynamic, &i915_hw_fs, &i915_hw_framebuffer, + &i915_hw_dst_buf_vars, &i915_hw_constants, NULL, }; diff --git a/src/gallium/drivers/i915/i915_state_static.c b/src/gallium/drivers/i915/i915_state_static.c index 39d6a4c8b96..44449bec044 100644 --- a/src/gallium/drivers/i915/i915_state_static.c +++ b/src/gallium/drivers/i915/i915_state_static.c @@ -28,6 +28,7 @@ #include "i915_context.h" #include "i915_state.h" #include "i915_resource.h" +#include "i915_screen.h" @@ -82,10 +83,9 @@ static void update_framebuffer(struct i915_context *i915) { struct pipe_surface *cbuf_surface = i915->framebuffer.cbufs[0]; struct pipe_surface *depth_surface = i915->framebuffer.zsbuf; - unsigned cformat, zformat; unsigned x, y; int layer; - uint32_t draw_offset, draw_size, dst_buf_vars; + uint32_t draw_offset, draw_size; if (cbuf_surface) { struct i915_texture *tex = i915_texture(cbuf_surface->texture); @@ -95,7 +95,6 @@ static void update_framebuffer(struct i915_context *i915) i915->current.cbuf_flags = BUF_3D_ID_COLOR_BACK | BUF_3D_PITCH(tex->stride) | /* pitch in bytes */ buf_3d_tiling_bits(tex->tiling); - cformat = cbuf_surface->format; layer = cbuf_surface->u.tex.first_layer; @@ -103,10 +102,8 @@ static void update_framebuffer(struct i915_context *i915) y = tex->image_offset[cbuf_surface->u.tex.level][layer].nblocksy; } else { i915->current.cbuf_bo = NULL; - cformat = PIPE_FORMAT_B8G8R8A8_UNORM; /* arbitrary */ x = y = 0; } - cformat = translate_format(cformat); i915->static_dirty |= I915_DST_BUF_COLOR; /* What happens if no zbuf?? @@ -122,24 +119,10 @@ static void update_framebuffer(struct i915_context *i915) i915->current.depth_flags = BUF_3D_ID_DEPTH | BUF_3D_PITCH(tex->stride) | /* pitch in bytes */ buf_3d_tiling_bits(tex->tiling); - zformat = translate_depth_format(depth_surface->format); - } else { + } else i915->current.depth_bo = NULL; - zformat = 0; - } i915->static_dirty |= I915_DST_BUF_DEPTH; - dst_buf_vars = DSTORG_HORT_BIAS(0x8) | /* .5 */ - DSTORG_VERT_BIAS(0x8) | /* .5 */ - LOD_PRECLAMP_OGL | - TEX_DEFAULT_COLOR_OGL | - cformat | - zformat; - if (i915->current.dst_buf_vars != dst_buf_vars) { - i915->current.dst_buf_vars = dst_buf_vars; - i915->static_dirty |= I915_DST_VARS; - } - /* drawing rect calculations */ draw_offset = x | (y << 16); draw_size = (i915->framebuffer.width - 1 + x) | @@ -164,3 +147,52 @@ struct i915_tracked_state i915_hw_framebuffer = { update_framebuffer, I915_NEW_FRAMEBUFFER }; + +static void update_dst_buf_vars(struct i915_context *i915) +{ + struct pipe_surface *cbuf_surface = i915->framebuffer.cbufs[0]; + struct pipe_surface *depth_surface = i915->framebuffer.zsbuf; + uint32_t dst_buf_vars, cformat, zformat; + uint32_t early_z = 0; + + if (cbuf_surface) + cformat = cbuf_surface->format; + else + cformat = PIPE_FORMAT_B8G8R8A8_UNORM; /* arbitrary */ + cformat = translate_format(cformat); + + if (depth_surface) { + struct i915_texture *tex = i915_texture(depth_surface->texture); + struct i915_screen *is = i915_screen(i915->base.screen); + + zformat = translate_depth_format(depth_surface->format); + + if (is->is_i945 && tex->tiling != I915_TILE_NONE + && !i915->fs->info.writes_z) + early_z = CLASSIC_EARLY_DEPTH; + } else + zformat = 0; + + dst_buf_vars = DSTORG_HORT_BIAS(0x8) | /* .5 */ + DSTORG_VERT_BIAS(0x8) | /* .5 */ + LOD_PRECLAMP_OGL | + TEX_DEFAULT_COLOR_OGL | + cformat | + zformat | + early_z; + + if (i915->current.dst_buf_vars != dst_buf_vars) { + if (early_z != (i915->current.dst_buf_vars & CLASSIC_EARLY_DEPTH)) + i915_set_flush_dirty(i915, I915_PIPELINE_FLUSH); + + i915->current.dst_buf_vars = dst_buf_vars; + i915->static_dirty |= I915_DST_VARS; + i915->hardware_dirty |= I915_HW_STATIC; + } +} + +struct i915_tracked_state i915_hw_dst_buf_vars = { + "dst buf vars", + update_dst_buf_vars, + I915_NEW_FRAMEBUFFER | I915_NEW_FS +};