/**************************************************************************
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*
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* Copyright 2007 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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/* Authors: Keith Whitwell <keithw@vmware.com>
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*/
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#include "draw/draw_context.h"
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#include "util/u_helpers.h"
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#include "util/u_inlines.h"
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#include "util/u_math.h"
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#include "util/u_memory.h"
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#include "util/u_transfer.h"
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#include "tgsi/tgsi_parse.h"
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#include "i915_context.h"
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#include "i915_reg.h"
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#include "i915_state_inlines.h"
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#include "i915_fpc.h"
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#include "i915_resource.h"
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#include "i915_state.h"
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/* The i915 (and related graphics cores) do not support GL_CLAMP. The
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* Intel drivers for "other operating systems" implement GL_CLAMP as
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* GL_CLAMP_TO_EDGE, so the same is done here.
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*/
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static unsigned
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translate_wrap_mode(unsigned wrap)
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{
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switch (wrap) {
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case PIPE_TEX_WRAP_REPEAT:
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return TEXCOORDMODE_WRAP;
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case PIPE_TEX_WRAP_CLAMP:
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return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */
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case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
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return TEXCOORDMODE_CLAMP_EDGE;
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case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
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return TEXCOORDMODE_CLAMP_BORDER;
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case PIPE_TEX_WRAP_MIRROR_REPEAT:
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return TEXCOORDMODE_MIRROR;
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default:
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return TEXCOORDMODE_WRAP;
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}
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}
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static unsigned translate_img_filter( unsigned filter )
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{
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switch (filter) {
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case PIPE_TEX_FILTER_NEAREST:
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return FILTER_NEAREST;
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case PIPE_TEX_FILTER_LINEAR:
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return FILTER_LINEAR;
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default:
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assert(0);
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return FILTER_NEAREST;
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}
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}
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static unsigned translate_mip_filter( unsigned filter )
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{
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switch (filter) {
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case PIPE_TEX_MIPFILTER_NONE:
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return MIPFILTER_NONE;
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case PIPE_TEX_MIPFILTER_NEAREST:
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return MIPFILTER_NEAREST;
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case PIPE_TEX_MIPFILTER_LINEAR:
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return MIPFILTER_LINEAR;
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default:
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assert(0);
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return MIPFILTER_NONE;
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}
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}
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/* None of this state is actually used for anything yet.
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*/
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static void *
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i915_create_blend_state(struct pipe_context *pipe,
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const struct pipe_blend_state *blend)
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{
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struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state );
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{
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unsigned eqRGB = blend->rt[0].rgb_func;
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unsigned srcRGB = blend->rt[0].rgb_src_factor;
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unsigned dstRGB = blend->rt[0].rgb_dst_factor;
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unsigned eqA = blend->rt[0].alpha_func;
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unsigned srcA = blend->rt[0].alpha_src_factor;
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unsigned dstA = blend->rt[0].alpha_dst_factor;
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/* Special handling for MIN/MAX filter modes handled at
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* state_tracker level.
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*/
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if (srcA != srcRGB ||
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dstA != dstRGB ||
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eqA != eqRGB) {
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cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD |
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IAB_MODIFY_ENABLE |
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IAB_ENABLE |
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IAB_MODIFY_FUNC |
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IAB_MODIFY_SRC_FACTOR |
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IAB_MODIFY_DST_FACTOR |
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SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) |
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DST_ABLND_FACT(i915_translate_blend_factor(dstA)) |
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(i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT));
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}
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else {
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cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD |
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IAB_MODIFY_ENABLE |
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0);
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}
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}
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cso_data->modes4 |= (_3DSTATE_MODES_4_CMD |
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ENABLE_LOGIC_OP_FUNC |
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LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func)));
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if (blend->logicop_enable)
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cso_data->LIS5 |= S5_LOGICOP_ENABLE;
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if (blend->dither)
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cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE;
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/* We potentially do some fixup at emission for non-BGRA targets */
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if ((blend->rt[0].colormask & PIPE_MASK_R) == 0)
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cso_data->LIS5 |= S5_WRITEDISABLE_RED;
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if ((blend->rt[0].colormask & PIPE_MASK_G) == 0)
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cso_data->LIS5 |= S5_WRITEDISABLE_GREEN;
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if ((blend->rt[0].colormask & PIPE_MASK_B) == 0)
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cso_data->LIS5 |= S5_WRITEDISABLE_BLUE;
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if ((blend->rt[0].colormask & PIPE_MASK_A) == 0)
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cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA;
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if (blend->rt[0].blend_enable) {
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unsigned funcRGB = blend->rt[0].rgb_func;
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unsigned srcRGB = blend->rt[0].rgb_src_factor;
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unsigned dstRGB = blend->rt[0].rgb_dst_factor;
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cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE |
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SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) |
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DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) |
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(i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT));
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}
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return cso_data;
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}
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static void i915_bind_blend_state(struct pipe_context *pipe,
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void *blend)
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{
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struct i915_context *i915 = i915_context(pipe);
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if (i915->blend == blend)
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return;
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i915->blend = (struct i915_blend_state*)blend;
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i915->dirty |= I915_NEW_BLEND;
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}
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static void i915_delete_blend_state(struct pipe_context *pipe, void *blend)
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{
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FREE(blend);
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}
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static void i915_set_blend_color( struct pipe_context *pipe,
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const struct pipe_blend_color *blend_color )
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{
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struct i915_context *i915 = i915_context(pipe);
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if (!blend_color)
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return;
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i915->blend_color = *blend_color;
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i915->dirty |= I915_NEW_BLEND;
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}
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static void i915_set_stencil_ref( struct pipe_context *pipe,
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const struct pipe_stencil_ref *stencil_ref )
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{
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struct i915_context *i915 = i915_context(pipe);
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i915->stencil_ref = *stencil_ref;
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i915->dirty |= I915_NEW_DEPTH_STENCIL;
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}
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static void *
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i915_create_sampler_state(struct pipe_context *pipe,
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const struct pipe_sampler_state *sampler)
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{
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struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state );
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const unsigned ws = sampler->wrap_s;
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const unsigned wt = sampler->wrap_t;
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const unsigned wr = sampler->wrap_r;
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unsigned minFilt, magFilt;
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unsigned mipFilt;
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cso->templ = *sampler;
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mipFilt = translate_mip_filter(sampler->min_mip_filter);
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minFilt = translate_img_filter( sampler->min_img_filter );
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magFilt = translate_img_filter( sampler->mag_img_filter );
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if (sampler->max_anisotropy > 1)
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minFilt = magFilt = FILTER_ANISOTROPIC;
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if (sampler->max_anisotropy > 2) {
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cso->state[0] |= SS2_MAX_ANISO_4;
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}
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{
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int b = (int) (sampler->lod_bias * 16.0);
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b = CLAMP(b, -256, 255);
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cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK);
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}
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/* Shadow:
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*/
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if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE)
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{
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cso->state[0] |= (SS2_SHADOW_ENABLE |
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i915_translate_shadow_compare_func(sampler->compare_func));
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minFilt = FILTER_4X4_FLAT;
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magFilt = FILTER_4X4_FLAT;
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}
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cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) |
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(mipFilt << SS2_MIP_FILTER_SHIFT) |
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(magFilt << SS2_MAG_FILTER_SHIFT));
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cso->state[1] |=
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((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) |
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(translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) |
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(translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT));
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if (sampler->normalized_coords)
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cso->state[1] |= SS3_NORMALIZED_COORDS;
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{
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int minlod = (int) (16.0 * sampler->min_lod);
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int maxlod = (int) (16.0 * sampler->max_lod);
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minlod = CLAMP(minlod, 0, 16 * 11);
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maxlod = CLAMP(maxlod, 0, 16 * 11);
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if (minlod > maxlod)
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maxlod = minlod;
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cso->minlod = minlod;
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cso->maxlod = maxlod;
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}
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{
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ubyte r = float_to_ubyte(sampler->border_color.f[0]);
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ubyte g = float_to_ubyte(sampler->border_color.f[1]);
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ubyte b = float_to_ubyte(sampler->border_color.f[2]);
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ubyte a = float_to_ubyte(sampler->border_color.f[3]);
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cso->state[2] = I915PACKCOLOR8888(r, g, b, a);
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}
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return cso;
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}
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static void
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i915_bind_vertex_sampler_states(struct pipe_context *pipe,
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unsigned start,
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unsigned num,
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void **samplers)
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{
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struct i915_context *i915 = i915_context(pipe);
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unsigned i;
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assert(start + num <= ARRAY_SIZE(i915->vertex_samplers));
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/* Check for no-op */
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if (num == i915->num_vertex_samplers &&
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!memcmp(i915->vertex_samplers + start, samplers,
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num * sizeof(void *)))
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return;
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for (i = 0; i < num; ++i)
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i915->vertex_samplers[i + start] = samplers[i];
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/* find highest non-null samplers[] entry */
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{
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unsigned j = MAX2(i915->num_vertex_samplers, start + num);
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while (j > 0 && i915->vertex_samplers[j - 1] == NULL)
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j--;
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i915->num_vertex_samplers = j;
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}
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draw_set_samplers(i915->draw,
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PIPE_SHADER_VERTEX,
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i915->vertex_samplers,
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i915->num_vertex_samplers);
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}
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static void i915_bind_fragment_sampler_states(struct pipe_context *pipe,
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unsigned start,
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unsigned num,
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void **samplers)
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{
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struct i915_context *i915 = i915_context(pipe);
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unsigned i;
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/* Check for no-op */
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if (num == i915->num_samplers &&
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!memcmp(i915->fragment_sampler + start, samplers,
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num * sizeof(void *)))
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return;
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for (i = 0; i < num; ++i)
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i915->fragment_sampler[i + start] = samplers[i];
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/* find highest non-null samplers[] entry */
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{
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unsigned j = MAX2(i915->num_samplers, start + num);
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while (j > 0 && i915->fragment_sampler[j - 1] == NULL)
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j--;
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i915->num_samplers = j;
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}
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i915->dirty |= I915_NEW_SAMPLER;
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}
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static void
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i915_bind_sampler_states(struct pipe_context *pipe,
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enum pipe_shader_type shader,
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unsigned start, unsigned num_samplers,
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void **samplers)
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{
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switch (shader) {
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case PIPE_SHADER_VERTEX:
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i915_bind_vertex_sampler_states(pipe, start, num_samplers, samplers);
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break;
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case PIPE_SHADER_FRAGMENT:
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i915_bind_fragment_sampler_states(pipe, start, num_samplers, samplers);
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break;
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default:
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;
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}
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}
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static void i915_delete_sampler_state(struct pipe_context *pipe,
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void *sampler)
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{
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FREE(sampler);
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}
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/**
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* Called before drawing VBO to map vertex samplers and hand them to draw
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*/
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void
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i915_prepare_vertex_sampling(struct i915_context *i915)
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{
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struct i915_winsys *iws = i915->iws;
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unsigned i,j;
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uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
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uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
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uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
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unsigned num = i915->num_vertex_sampler_views;
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struct pipe_sampler_view **views = i915->vertex_sampler_views;
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assert(num <= PIPE_MAX_SAMPLERS);
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if (!num)
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return;
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for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
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struct pipe_sampler_view *view = i < num ? views[i] : NULL;
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if (view) {
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struct pipe_resource *tex = view->texture;
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struct i915_texture *i915_tex = i915_texture(tex);
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ubyte *addr;
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/* We're referencing the texture's internal data, so save a
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* reference to it.
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*/
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pipe_resource_reference(&i915->mapped_vs_tex[i], tex);
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i915->mapped_vs_tex_buffer[i] = i915_tex->buffer;
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addr = iws->buffer_map(iws,
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i915_tex->buffer,
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FALSE /* read only */);
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/* Setup array of mipmap level pointers */
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/* FIXME: handle 3D textures? */
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for (j = view->u.tex.first_level; j <= tex->last_level; j++) {
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mip_offsets[j] = i915_texture_offset(i915_tex, j , 0 /* FIXME depth */);
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row_stride[j] = i915_tex->stride;
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img_stride[j] = 0; /* FIXME */
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}
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draw_set_mapped_texture(i915->draw,
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PIPE_SHADER_VERTEX,
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i,
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tex->width0, tex->height0, tex->depth0,
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view->u.tex.first_level, tex->last_level,
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addr,
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row_stride, img_stride, mip_offsets);
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} else
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i915->mapped_vs_tex[i] = NULL;
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}
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}
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void
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i915_cleanup_vertex_sampling(struct i915_context *i915)
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{
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struct i915_winsys *iws = i915->iws;
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unsigned i;
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for (i = 0; i < ARRAY_SIZE(i915->mapped_vs_tex); i++) {
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if (i915->mapped_vs_tex_buffer[i]) {
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iws->buffer_unmap(iws, i915->mapped_vs_tex_buffer[i]);
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pipe_resource_reference(&i915->mapped_vs_tex[i], NULL);
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}
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}
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}
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|
|
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/** XXX move someday? Or consolidate all these simple state setters
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* into one file.
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*/
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static void *
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i915_create_depth_stencil_state(struct pipe_context *pipe,
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const struct pipe_depth_stencil_alpha_state *depth_stencil)
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{
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struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state );
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{
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int testmask = depth_stencil->stencil[0].valuemask & 0xff;
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int writemask = depth_stencil->stencil[0].writemask & 0xff;
|
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cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD |
|
ENABLE_STENCIL_TEST_MASK |
|
STENCIL_TEST_MASK(testmask) |
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ENABLE_STENCIL_WRITE_MASK |
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STENCIL_WRITE_MASK(writemask));
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}
|
|
if (depth_stencil->stencil[0].enabled) {
|
int test = i915_translate_compare_func(depth_stencil->stencil[0].func);
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int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op);
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int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op);
|
int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op);
|
|
cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE |
|
S5_STENCIL_WRITE_ENABLE |
|
(test << S5_STENCIL_TEST_FUNC_SHIFT) |
|
(fop << S5_STENCIL_FAIL_SHIFT) |
|
(dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) |
|
(dpop << S5_STENCIL_PASS_Z_PASS_SHIFT));
|
}
|
|
if (depth_stencil->stencil[1].enabled) {
|
int test = i915_translate_compare_func(depth_stencil->stencil[1].func);
|
int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op);
|
int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op);
|
int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op);
|
int tmask = depth_stencil->stencil[1].valuemask & 0xff;
|
int wmask = depth_stencil->stencil[1].writemask & 0xff;
|
|
cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS |
|
BFO_ENABLE_STENCIL_FUNCS |
|
BFO_ENABLE_STENCIL_TWO_SIDE |
|
BFO_ENABLE_STENCIL_REF |
|
BFO_STENCIL_TWO_SIDE |
|
(test << BFO_STENCIL_TEST_SHIFT) |
|
(fop << BFO_STENCIL_FAIL_SHIFT) |
|
(dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) |
|
(dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT));
|
|
cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS |
|
BFM_ENABLE_STENCIL_TEST_MASK |
|
BFM_ENABLE_STENCIL_WRITE_MASK |
|
(tmask << BFM_STENCIL_TEST_MASK_SHIFT) |
|
(wmask << BFM_STENCIL_WRITE_MASK_SHIFT));
|
}
|
else {
|
/* This actually disables two-side stencil: The bit set is a
|
* modify-enable bit to indicate we are changing the two-side
|
* setting. Then there is a symbolic zero to show that we are
|
* setting the flag to zero/off.
|
*/
|
cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS |
|
BFO_ENABLE_STENCIL_TWO_SIDE |
|
0);
|
cso->bfo[1] = 0;
|
}
|
|
if (depth_stencil->depth.enabled) {
|
int func = i915_translate_compare_func(depth_stencil->depth.func);
|
|
cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE |
|
(func << S6_DEPTH_TEST_FUNC_SHIFT));
|
|
if (depth_stencil->depth.writemask)
|
cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE;
|
}
|
|
if (depth_stencil->alpha.enabled) {
|
int test = i915_translate_compare_func(depth_stencil->alpha.func);
|
ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value);
|
|
cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE |
|
(test << S6_ALPHA_TEST_FUNC_SHIFT) |
|
(((unsigned) refByte) << S6_ALPHA_REF_SHIFT));
|
}
|
|
return cso;
|
}
|
|
static void i915_bind_depth_stencil_state(struct pipe_context *pipe,
|
void *depth_stencil)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
if (i915->depth_stencil == depth_stencil)
|
return;
|
|
i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil;
|
|
i915->dirty |= I915_NEW_DEPTH_STENCIL;
|
}
|
|
static void i915_delete_depth_stencil_state(struct pipe_context *pipe,
|
void *depth_stencil)
|
{
|
FREE(depth_stencil);
|
}
|
|
|
static void i915_set_scissor_states( struct pipe_context *pipe,
|
unsigned start_slot,
|
unsigned num_scissors,
|
const struct pipe_scissor_state *scissor )
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
memcpy( &i915->scissor, scissor, sizeof(*scissor) );
|
i915->dirty |= I915_NEW_SCISSOR;
|
}
|
|
|
static void i915_set_polygon_stipple( struct pipe_context *pipe,
|
const struct pipe_poly_stipple *stipple )
|
{
|
}
|
|
|
|
static void *
|
i915_create_fs_state(struct pipe_context *pipe,
|
const struct pipe_shader_state *templ)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader);
|
if (!ifs)
|
return NULL;
|
|
ifs->draw_data = draw_create_fragment_shader(i915->draw, templ);
|
ifs->state.tokens = tgsi_dup_tokens(templ->tokens);
|
|
tgsi_scan_shader(templ->tokens, &ifs->info);
|
|
/* The shader's compiled to i915 instructions here */
|
i915_translate_fragment_program(i915, ifs);
|
|
return ifs;
|
}
|
|
static void
|
i915_bind_fs_state(struct pipe_context *pipe, void *shader)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
if (i915->fs == shader)
|
return;
|
|
i915->fs = (struct i915_fragment_shader*) shader;
|
|
draw_bind_fragment_shader(i915->draw, (i915->fs ? i915->fs->draw_data : NULL));
|
|
i915->dirty |= I915_NEW_FS;
|
}
|
|
static
|
void i915_delete_fs_state(struct pipe_context *pipe, void *shader)
|
{
|
struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader;
|
|
FREE(ifs->decl);
|
ifs->decl = NULL;
|
|
FREE(ifs->program);
|
ifs->program = NULL;
|
FREE((struct tgsi_token *)ifs->state.tokens);
|
ifs->state.tokens = NULL;
|
|
ifs->program_len = 0;
|
ifs->decl_len = 0;
|
|
FREE(ifs);
|
}
|
|
|
static void *
|
i915_create_vs_state(struct pipe_context *pipe,
|
const struct pipe_shader_state *templ)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
/* just pass-through to draw module */
|
return draw_create_vertex_shader(i915->draw, templ);
|
}
|
|
static void i915_bind_vs_state(struct pipe_context *pipe, void *shader)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
if (i915->vs == shader)
|
return;
|
|
i915->vs = shader;
|
|
/* just pass-through to draw module */
|
draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader);
|
|
i915->dirty |= I915_NEW_VS;
|
}
|
|
static void i915_delete_vs_state(struct pipe_context *pipe, void *shader)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
/* just pass-through to draw module */
|
draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader);
|
}
|
|
static void i915_set_constant_buffer(struct pipe_context *pipe,
|
enum pipe_shader_type shader, uint index,
|
const struct pipe_constant_buffer *cb)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
struct pipe_resource *buf = cb ? cb->buffer : NULL;
|
unsigned new_num = 0;
|
boolean diff = TRUE;
|
|
/* XXX don't support geom shaders now */
|
if (shader == PIPE_SHADER_GEOMETRY)
|
return;
|
|
if (cb && cb->user_buffer) {
|
buf = i915_user_buffer_create(pipe->screen, (void *) cb->user_buffer,
|
cb->buffer_size,
|
PIPE_BIND_CONSTANT_BUFFER);
|
}
|
|
/* if we have a new buffer compare it with the old one */
|
if (buf) {
|
struct i915_buffer *ibuf = i915_buffer(buf);
|
struct pipe_resource *old_buf = i915->constants[shader];
|
struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL;
|
unsigned old_num = i915->current.num_user_constants[shader];
|
|
new_num = ibuf->b.b.width0 / 4 * sizeof(float);
|
|
if (old_num == new_num) {
|
if (old_num == 0)
|
diff = FALSE;
|
#if 0
|
/* XXX no point in running this code since st/mesa only uses user buffers */
|
/* Can't compare the buffer data since they are userbuffers */
|
else if (old && old->free_on_destroy)
|
diff = memcmp(old->data, ibuf->data, ibuf->b.b.width0);
|
#else
|
(void)old;
|
#endif
|
}
|
} else {
|
diff = i915->current.num_user_constants[shader] != 0;
|
}
|
|
pipe_resource_reference(&i915->constants[shader], buf);
|
i915->current.num_user_constants[shader] = new_num;
|
|
if (diff)
|
i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS;
|
|
if (cb && cb->user_buffer) {
|
pipe_resource_reference(&buf, NULL);
|
}
|
}
|
|
|
static void i915_set_fragment_sampler_views(struct pipe_context *pipe,
|
unsigned num,
|
struct pipe_sampler_view **views)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
uint i;
|
|
assert(num <= PIPE_MAX_SAMPLERS);
|
|
/* Check for no-op */
|
if (num == i915->num_fragment_sampler_views &&
|
!memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *)))
|
return;
|
|
for (i = 0; i < num; i++) {
|
/* Note: we're using pipe_sampler_view_release() here to work around
|
* a possible crash when the old view belongs to another context that
|
* was already destroyed.
|
*/
|
pipe_sampler_view_release(pipe, &i915->fragment_sampler_views[i]);
|
pipe_sampler_view_reference(&i915->fragment_sampler_views[i],
|
views[i]);
|
}
|
|
for (i = num; i < i915->num_fragment_sampler_views; i++)
|
pipe_sampler_view_release(pipe, &i915->fragment_sampler_views[i]);
|
|
i915->num_fragment_sampler_views = num;
|
|
i915->dirty |= I915_NEW_SAMPLER_VIEW;
|
}
|
|
static void
|
i915_set_vertex_sampler_views(struct pipe_context *pipe,
|
unsigned num,
|
struct pipe_sampler_view **views)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
uint i;
|
|
assert(num <= ARRAY_SIZE(i915->vertex_sampler_views));
|
|
/* Check for no-op */
|
if (num == i915->num_vertex_sampler_views &&
|
!memcmp(i915->vertex_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) {
|
return;
|
}
|
|
for (i = 0; i < ARRAY_SIZE(i915->vertex_sampler_views); i++) {
|
struct pipe_sampler_view *view = i < num ? views[i] : NULL;
|
|
pipe_sampler_view_reference(&i915->vertex_sampler_views[i], view);
|
}
|
|
i915->num_vertex_sampler_views = num;
|
|
draw_set_sampler_views(i915->draw,
|
PIPE_SHADER_VERTEX,
|
i915->vertex_sampler_views,
|
i915->num_vertex_sampler_views);
|
}
|
|
|
static void
|
i915_set_sampler_views(struct pipe_context *pipe, enum pipe_shader_type shader,
|
unsigned start, unsigned num,
|
struct pipe_sampler_view **views)
|
{
|
assert(start == 0);
|
switch (shader) {
|
case PIPE_SHADER_FRAGMENT:
|
i915_set_fragment_sampler_views(pipe, num, views);
|
break;
|
case PIPE_SHADER_VERTEX:
|
i915_set_vertex_sampler_views(pipe, num, views);
|
break;
|
default:
|
;
|
}
|
}
|
|
|
struct pipe_sampler_view *
|
i915_create_sampler_view_custom(struct pipe_context *pipe,
|
struct pipe_resource *texture,
|
const struct pipe_sampler_view *templ,
|
unsigned width0,
|
unsigned height0)
|
{
|
struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
|
|
if (view) {
|
*view = *templ;
|
view->reference.count = 1;
|
view->texture = NULL;
|
pipe_resource_reference(&view->texture, texture);
|
view->context = pipe;
|
}
|
|
return view;
|
}
|
|
static struct pipe_sampler_view *
|
i915_create_sampler_view(struct pipe_context *pipe,
|
struct pipe_resource *texture,
|
const struct pipe_sampler_view *templ)
|
{
|
struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
|
|
if (view) {
|
*view = *templ;
|
view->reference.count = 1;
|
view->texture = NULL;
|
pipe_resource_reference(&view->texture, texture);
|
view->context = pipe;
|
}
|
|
return view;
|
}
|
|
|
static void
|
i915_sampler_view_destroy(struct pipe_context *pipe,
|
struct pipe_sampler_view *view)
|
{
|
pipe_resource_reference(&view->texture, NULL);
|
FREE(view);
|
}
|
|
|
static void i915_set_framebuffer_state(struct pipe_context *pipe,
|
const struct pipe_framebuffer_state *fb)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
int i;
|
|
i915->framebuffer.width = fb->width;
|
i915->framebuffer.height = fb->height;
|
i915->framebuffer.nr_cbufs = fb->nr_cbufs;
|
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
|
pipe_surface_reference(&i915->framebuffer.cbufs[i],
|
i < fb->nr_cbufs ? fb->cbufs[i] : NULL);
|
}
|
pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf);
|
|
i915->dirty |= I915_NEW_FRAMEBUFFER;
|
}
|
|
|
|
static void i915_set_clip_state( struct pipe_context *pipe,
|
const struct pipe_clip_state *clip )
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
i915->clip = *clip;
|
|
draw_set_clip_state(i915->draw, clip);
|
|
i915->dirty |= I915_NEW_CLIP;
|
}
|
|
|
|
/* Called when driver state tracker notices changes to the viewport
|
* matrix:
|
*/
|
static void i915_set_viewport_states( struct pipe_context *pipe,
|
unsigned start_slot,
|
unsigned num_viewports,
|
const struct pipe_viewport_state *viewport )
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
i915->viewport = *viewport; /* struct copy */
|
|
/* pass the viewport info to the draw module */
|
draw_set_viewport_states(i915->draw, start_slot, num_viewports,
|
&i915->viewport);
|
|
i915->dirty |= I915_NEW_VIEWPORT;
|
}
|
|
|
static void *
|
i915_create_rasterizer_state(struct pipe_context *pipe,
|
const struct pipe_rasterizer_state *rasterizer)
|
{
|
struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state );
|
|
cso->templ = *rasterizer;
|
cso->light_twoside = rasterizer->light_twoside;
|
cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE;
|
cso->ds[1].f = rasterizer->offset_scale;
|
if (rasterizer->poly_stipple_enable) {
|
cso->st |= ST1_ENABLE;
|
}
|
|
if (rasterizer->scissor)
|
cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT;
|
else
|
cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT;
|
|
switch (rasterizer->cull_face) {
|
case PIPE_FACE_NONE:
|
cso->LIS4 |= S4_CULLMODE_NONE;
|
break;
|
case PIPE_FACE_FRONT:
|
if (rasterizer->front_ccw)
|
cso->LIS4 |= S4_CULLMODE_CCW;
|
else
|
cso->LIS4 |= S4_CULLMODE_CW;
|
break;
|
case PIPE_FACE_BACK:
|
if (rasterizer->front_ccw)
|
cso->LIS4 |= S4_CULLMODE_CW;
|
else
|
cso->LIS4 |= S4_CULLMODE_CCW;
|
break;
|
case PIPE_FACE_FRONT_AND_BACK:
|
cso->LIS4 |= S4_CULLMODE_BOTH;
|
break;
|
}
|
|
{
|
int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf);
|
|
cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT;
|
|
if (rasterizer->line_smooth)
|
cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE;
|
}
|
|
{
|
int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff);
|
|
cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT;
|
}
|
|
if (rasterizer->flatshade) {
|
cso->LIS4 |= (S4_FLATSHADE_ALPHA |
|
S4_FLATSHADE_COLOR |
|
S4_FLATSHADE_SPECULAR);
|
}
|
|
cso->LIS7 = fui( rasterizer->offset_units );
|
|
|
return cso;
|
}
|
|
static void i915_bind_rasterizer_state( struct pipe_context *pipe,
|
void *raster )
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
|
if (i915->rasterizer == raster)
|
return;
|
|
i915->rasterizer = (struct i915_rasterizer_state *)raster;
|
|
/* pass-through to draw module */
|
draw_set_rasterizer_state(i915->draw,
|
(i915->rasterizer ? &(i915->rasterizer->templ) : NULL),
|
raster);
|
|
i915->dirty |= I915_NEW_RASTERIZER;
|
}
|
|
static void i915_delete_rasterizer_state(struct pipe_context *pipe,
|
void *raster)
|
{
|
FREE(raster);
|
}
|
|
static void i915_set_vertex_buffers(struct pipe_context *pipe,
|
unsigned start_slot, unsigned count,
|
const struct pipe_vertex_buffer *buffers)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
struct draw_context *draw = i915->draw;
|
|
util_set_vertex_buffers_count(i915->vertex_buffers,
|
&i915->nr_vertex_buffers,
|
buffers, start_slot, count);
|
|
/* pass-through to draw module */
|
draw_set_vertex_buffers(draw, start_slot, count, buffers);
|
}
|
|
static void *
|
i915_create_vertex_elements_state(struct pipe_context *pipe,
|
unsigned count,
|
const struct pipe_vertex_element *attribs)
|
{
|
struct i915_velems_state *velems;
|
assert(count <= PIPE_MAX_ATTRIBS);
|
velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state));
|
if (velems) {
|
velems->count = count;
|
memcpy(velems->velem, attribs, sizeof(*attribs) * count);
|
}
|
return velems;
|
}
|
|
static void
|
i915_bind_vertex_elements_state(struct pipe_context *pipe,
|
void *velems)
|
{
|
struct i915_context *i915 = i915_context(pipe);
|
struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems;
|
|
if (i915->velems == velems)
|
return;
|
|
i915->velems = velems;
|
|
/* pass-through to draw module */
|
if (i915_velems) {
|
draw_set_vertex_elements(i915->draw,
|
i915_velems->count, i915_velems->velem);
|
}
|
}
|
|
static void
|
i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
|
{
|
FREE( velems );
|
}
|
|
static void
|
i915_set_sample_mask(struct pipe_context *pipe,
|
unsigned sample_mask)
|
{
|
}
|
|
void
|
i915_init_state_functions( struct i915_context *i915 )
|
{
|
i915->base.create_blend_state = i915_create_blend_state;
|
i915->base.bind_blend_state = i915_bind_blend_state;
|
i915->base.delete_blend_state = i915_delete_blend_state;
|
|
i915->base.create_sampler_state = i915_create_sampler_state;
|
i915->base.bind_sampler_states = i915_bind_sampler_states;
|
i915->base.delete_sampler_state = i915_delete_sampler_state;
|
|
i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state;
|
i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state;
|
i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state;
|
|
i915->base.create_rasterizer_state = i915_create_rasterizer_state;
|
i915->base.bind_rasterizer_state = i915_bind_rasterizer_state;
|
i915->base.delete_rasterizer_state = i915_delete_rasterizer_state;
|
i915->base.create_fs_state = i915_create_fs_state;
|
i915->base.bind_fs_state = i915_bind_fs_state;
|
i915->base.delete_fs_state = i915_delete_fs_state;
|
i915->base.create_vs_state = i915_create_vs_state;
|
i915->base.bind_vs_state = i915_bind_vs_state;
|
i915->base.delete_vs_state = i915_delete_vs_state;
|
i915->base.create_vertex_elements_state = i915_create_vertex_elements_state;
|
i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state;
|
i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state;
|
|
i915->base.set_blend_color = i915_set_blend_color;
|
i915->base.set_stencil_ref = i915_set_stencil_ref;
|
i915->base.set_clip_state = i915_set_clip_state;
|
i915->base.set_sample_mask = i915_set_sample_mask;
|
i915->base.set_constant_buffer = i915_set_constant_buffer;
|
i915->base.set_framebuffer_state = i915_set_framebuffer_state;
|
|
i915->base.set_polygon_stipple = i915_set_polygon_stipple;
|
i915->base.set_scissor_states = i915_set_scissor_states;
|
i915->base.set_sampler_views = i915_set_sampler_views;
|
i915->base.create_sampler_view = i915_create_sampler_view;
|
i915->base.sampler_view_destroy = i915_sampler_view_destroy;
|
i915->base.set_viewport_states = i915_set_viewport_states;
|
i915->base.set_vertex_buffers = i915_set_vertex_buffers;
|
}
|
