/**************************************************************************
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*
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* Copyright 2003 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "i915_batch.h"
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#include "i915_state_inlines.h"
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#include "i915_context.h"
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#include "i915_reg.h"
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#include "i915_state.h"
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#include "util/u_memory.h"
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#include "util/u_pack_color.h"
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/* State that we have chosen to store in the DYNAMIC segment of the
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* i915 indirect state mechanism.
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*
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* Can't cache these in the way we do the static state, as there is no
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* start/size in the command packet, instead an 'end' value that gets
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* incremented.
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*
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* Additionally, there seems to be a requirement to re-issue the full
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* (active) state every time a 4kb boundary is crossed.
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*/
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static inline void set_dynamic(struct i915_context *i915,
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unsigned offset,
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const unsigned state)
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{
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if (i915->current.dynamic[offset] == state)
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return;
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i915->current.dynamic[offset] = state;
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i915->dynamic_dirty |= 1 << offset;
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i915->hardware_dirty |= I915_HW_DYNAMIC;
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}
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static inline void set_dynamic_array(struct i915_context *i915,
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unsigned offset,
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const unsigned *src,
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unsigned dwords)
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{
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unsigned i;
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if (!memcmp(src, &i915->current.dynamic[offset], dwords * 4))
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return;
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for (i = 0; i < dwords; i++) {
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i915->current.dynamic[offset + i] = src[i];
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i915->dynamic_dirty |= 1 << (offset + i);
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}
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i915->hardware_dirty |= I915_HW_DYNAMIC;
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}
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/***********************************************************************
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* Modes4: stencil masks and logicop
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*/
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static void upload_MODES4(struct i915_context *i915)
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{
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unsigned modes4 = 0;
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/* I915_NEW_STENCIL
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*/
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modes4 |= i915->depth_stencil->stencil_modes4;
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/* I915_NEW_BLEND
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*/
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modes4 |= i915->blend->modes4;
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set_dynamic(i915, I915_DYNAMIC_MODES4, modes4);
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}
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const struct i915_tracked_state i915_upload_MODES4 = {
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"MODES4",
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upload_MODES4,
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I915_NEW_BLEND | I915_NEW_DEPTH_STENCIL
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};
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/***********************************************************************
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*/
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static void upload_BFO(struct i915_context *i915)
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{
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unsigned bfo[2];
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bfo[0] = i915->depth_stencil->bfo[0];
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bfo[1] = i915->depth_stencil->bfo[1];
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/* I don't get it only allowed to set a ref mask when the enable bit is set? */
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if (bfo[0] & BFO_ENABLE_STENCIL_REF) {
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bfo[0] |= i915->stencil_ref.ref_value[1] << BFO_STENCIL_REF_SHIFT;
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}
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set_dynamic_array(i915, I915_DYNAMIC_BFO_0, bfo, 2);
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}
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const struct i915_tracked_state i915_upload_BFO = {
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"BFO",
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upload_BFO,
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I915_NEW_DEPTH_STENCIL
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};
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/***********************************************************************
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*/
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static void upload_BLENDCOLOR(struct i915_context *i915)
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{
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unsigned bc[2];
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memset(bc, 0, sizeof(bc));
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/* I915_NEW_BLEND
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*/
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{
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const float *color = i915->blend_color.color;
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bc[0] = _3DSTATE_CONST_BLEND_COLOR_CMD;
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bc[1] = pack_ui32_float4(color[0],
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color[1],
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color[2],
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color[3]);
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}
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set_dynamic_array(i915, I915_DYNAMIC_BC_0, bc, 2);
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}
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const struct i915_tracked_state i915_upload_BLENDCOLOR = {
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"BLENDCOLOR",
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upload_BLENDCOLOR,
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I915_NEW_BLEND
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};
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/***********************************************************************
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*/
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static void upload_IAB(struct i915_context *i915)
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{
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unsigned iab = i915->blend->iab;
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set_dynamic(i915, I915_DYNAMIC_IAB, iab);
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}
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const struct i915_tracked_state i915_upload_IAB = {
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"IAB",
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upload_IAB,
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I915_NEW_BLEND
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};
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/***********************************************************************
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*/
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static void upload_DEPTHSCALE(struct i915_context *i915)
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{
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set_dynamic_array(i915, I915_DYNAMIC_DEPTHSCALE_0,
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&i915->rasterizer->ds[0].u, 2);
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}
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const struct i915_tracked_state i915_upload_DEPTHSCALE = {
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"DEPTHSCALE",
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upload_DEPTHSCALE,
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I915_NEW_RASTERIZER
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};
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/***********************************************************************
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* Polygon stipple
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*
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* The i915 supports a 4x4 stipple natively, GL wants 32x32.
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* Fortunately stipple is usually a repeating pattern.
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*
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* XXX: does stipple pattern need to be adjusted according to
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* the window position?
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*
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* XXX: possibly need workaround for conform paths test.
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*/
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static void upload_STIPPLE(struct i915_context *i915)
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{
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unsigned st[2];
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st[0] = _3DSTATE_STIPPLE;
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st[1] = 0;
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/* I915_NEW_RASTERIZER
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*/
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if (i915->rasterizer)
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st[1] |= i915->rasterizer->st;
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/* I915_NEW_STIPPLE
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*/
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{
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const ubyte *mask = (const ubyte *)i915->poly_stipple.stipple;
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ubyte p[4];
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p[0] = mask[12] & 0xf;
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p[1] = mask[8] & 0xf;
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p[2] = mask[4] & 0xf;
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p[3] = mask[0] & 0xf;
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/* Not sure what to do about fallbacks, so for now just dont:
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*/
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st[1] |= ((p[0] << 0) |
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(p[1] << 4) |
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(p[2] << 8) |
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(p[3] << 12));
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}
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set_dynamic_array(i915, I915_DYNAMIC_STP_0, st, 2);
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}
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const struct i915_tracked_state i915_upload_STIPPLE = {
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"STIPPLE",
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upload_STIPPLE,
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I915_NEW_RASTERIZER | I915_NEW_STIPPLE
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};
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/***********************************************************************
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* Scissor enable
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*/
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static void upload_SCISSOR_ENABLE( struct i915_context *i915 )
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{
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set_dynamic(i915, I915_DYNAMIC_SC_ENA_0, i915->rasterizer->sc[0]);
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}
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const struct i915_tracked_state i915_upload_SCISSOR_ENABLE = {
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"SCISSOR ENABLE",
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upload_SCISSOR_ENABLE,
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I915_NEW_RASTERIZER
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};
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/***********************************************************************
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* Scissor rect
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*/
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static void upload_SCISSOR_RECT(struct i915_context *i915)
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{
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unsigned x1 = i915->scissor.minx;
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unsigned y1 = i915->scissor.miny;
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unsigned x2 = i915->scissor.maxx - 1;
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unsigned y2 = i915->scissor.maxy - 1;
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unsigned sc[3];
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sc[0] = _3DSTATE_SCISSOR_RECT_0_CMD;
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sc[1] = (y1 << 16) | (x1 & 0xffff);
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sc[2] = (y2 << 16) | (x2 & 0xffff);
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set_dynamic_array(i915, I915_DYNAMIC_SC_RECT_0, sc, 3);
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}
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const struct i915_tracked_state i915_upload_SCISSOR_RECT = {
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"SCISSOR RECT",
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upload_SCISSOR_RECT,
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I915_NEW_SCISSOR
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};
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/***********************************************************************
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*/
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static const struct i915_tracked_state *atoms[] = {
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&i915_upload_MODES4,
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&i915_upload_BFO,
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&i915_upload_BLENDCOLOR,
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&i915_upload_IAB,
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&i915_upload_DEPTHSCALE,
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&i915_upload_STIPPLE,
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&i915_upload_SCISSOR_ENABLE,
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&i915_upload_SCISSOR_RECT
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};
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/* These will be dynamic indirect state commands, but for now just end
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* up on the batch buffer with everything else.
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*/
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static void update_dynamic(struct i915_context *i915)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(atoms); i++)
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if (i915->dirty & atoms[i]->dirty)
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atoms[i]->update(i915);
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}
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struct i915_tracked_state i915_hw_dynamic = {
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"dynamic",
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update_dynamic,
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~0 /* all state atoms, because we do internal checking */
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};
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