diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_state_rss.c')
-rw-r--r-- | src/gallium/drivers/svga/svga_state_rss.c | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_state_rss.c b/src/gallium/drivers/svga/svga_state_rss.c new file mode 100644 index 0000000..8b6803a --- /dev/null +++ b/src/gallium/drivers/svga/svga_state_rss.c @@ -0,0 +1,268 @@ +/********************************************************** + * Copyright 2008-2009 VMware, Inc. All rights reserved. + * + * 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 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 AUTHORS OR COPYRIGHT HOLDERS + * 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. + * + **********************************************************/ + +#include "pipe/p_inlines.h" +#include "pipe/p_defines.h" +#include "util/u_math.h" + +#include "svga_context.h" +#include "svga_state.h" +#include "svga_cmd.h" + +#include "svga_hw_reg.h" + + + +struct rs_queue { + unsigned rs_count; + SVGA3dRenderState rs[SVGA3D_RS_MAX]; +}; + + +#define EMIT_RS(svga, value, token, fail) \ +do { \ + if (svga->state.hw_draw.rs[SVGA3D_RS_##token] != value) { \ + svga_queue_rs( &queue, SVGA3D_RS_##token, value ); \ + svga->state.hw_draw.rs[SVGA3D_RS_##token] = value; \ + } \ +} while (0) + +#define EMIT_RS_FLOAT(svga, fvalue, token, fail) \ +do { \ + unsigned value = fui(fvalue); \ + if (svga->state.hw_draw.rs[SVGA3D_RS_##token] != value) { \ + svga_queue_rs( &queue, SVGA3D_RS_##token, value ); \ + svga->state.hw_draw.rs[SVGA3D_RS_##token] = value; \ + } \ +} while (0) + + +static INLINE void +svga_queue_rs( struct rs_queue *q, + unsigned rss, + unsigned value ) +{ + q->rs[q->rs_count].state = rss; + q->rs[q->rs_count].uintValue = value; + q->rs_count++; +} + + +/* Compare old and new render states and emit differences between them + * to hardware. Simplest implementation would be to emit the whole of + * the "to" state. + */ +static int emit_rss( struct svga_context *svga, + unsigned dirty ) +{ + struct rs_queue queue; + + queue.rs_count = 0; + + if (dirty & SVGA_NEW_BLEND) { + const struct svga_blend_state *curr = svga->curr.blend; + + EMIT_RS( svga, curr->rt[0].writemask, COLORWRITEENABLE, fail ); + EMIT_RS( svga, curr->rt[0].blend_enable, BLENDENABLE, fail ); + + if (curr->rt[0].blend_enable) { + EMIT_RS( svga, curr->rt[0].srcblend, SRCBLEND, fail ); + EMIT_RS( svga, curr->rt[0].dstblend, DSTBLEND, fail ); + EMIT_RS( svga, curr->rt[0].blendeq, BLENDEQUATION, fail ); + + EMIT_RS( svga, curr->rt[0].separate_alpha_blend_enable, + SEPARATEALPHABLENDENABLE, fail ); + + if (curr->rt[0].separate_alpha_blend_enable) { + EMIT_RS( svga, curr->rt[0].srcblend_alpha, SRCBLENDALPHA, fail ); + EMIT_RS( svga, curr->rt[0].dstblend_alpha, DSTBLENDALPHA, fail ); + EMIT_RS( svga, curr->rt[0].blendeq_alpha, BLENDEQUATIONALPHA, fail ); + } + } + } + + + if (dirty & (SVGA_NEW_DEPTH_STENCIL | SVGA_NEW_RAST)) { + const struct svga_depth_stencil_state *curr = svga->curr.depth; + const struct svga_rasterizer_state *rast = svga->curr.rast; + + if (!curr->stencil[0].enabled) + { + /* Stencil disabled + */ + EMIT_RS( svga, FALSE, STENCILENABLE, fail ); + EMIT_RS( svga, FALSE, STENCILENABLE2SIDED, fail ); + } + else if (curr->stencil[0].enabled && !curr->stencil[1].enabled) + { + /* Regular stencil + */ + EMIT_RS( svga, TRUE, STENCILENABLE, fail ); + EMIT_RS( svga, FALSE, STENCILENABLE2SIDED, fail ); + + EMIT_RS( svga, curr->stencil[0].func, STENCILFUNC, fail ); + EMIT_RS( svga, curr->stencil[0].fail, STENCILFAIL, fail ); + EMIT_RS( svga, curr->stencil[0].zfail, STENCILZFAIL, fail ); + EMIT_RS( svga, curr->stencil[0].pass, STENCILPASS, fail ); + + EMIT_RS( svga, curr->stencil_ref, STENCILREF, fail ); + EMIT_RS( svga, curr->stencil_mask, STENCILMASK, fail ); + EMIT_RS( svga, curr->stencil_writemask, STENCILWRITEMASK, fail ); + } + else + { + int cw, ccw; + + /* Hardware frontwinding is always CW, so if ours is also CW, + * then our definition of front face agrees with hardware. + * Otherwise need to flip. + */ + if (rast->templ.front_winding == PIPE_WINDING_CW) { + cw = 0; + ccw = 1; + } + else { + cw = 1; + ccw = 0; + } + + /* Twoside stencil + */ + EMIT_RS( svga, TRUE, STENCILENABLE, fail ); + EMIT_RS( svga, TRUE, STENCILENABLE2SIDED, fail ); + + EMIT_RS( svga, curr->stencil[cw].func, STENCILFUNC, fail ); + EMIT_RS( svga, curr->stencil[cw].fail, STENCILFAIL, fail ); + EMIT_RS( svga, curr->stencil[cw].zfail, STENCILZFAIL, fail ); + EMIT_RS( svga, curr->stencil[cw].pass, STENCILPASS, fail ); + + EMIT_RS( svga, curr->stencil[ccw].func, CCWSTENCILFUNC, fail ); + EMIT_RS( svga, curr->stencil[ccw].fail, CCWSTENCILFAIL, fail ); + EMIT_RS( svga, curr->stencil[ccw].zfail, CCWSTENCILZFAIL, fail ); + EMIT_RS( svga, curr->stencil[ccw].pass, CCWSTENCILPASS, fail ); + + EMIT_RS( svga, curr->stencil_ref, STENCILREF, fail ); + EMIT_RS( svga, curr->stencil_mask, STENCILMASK, fail ); + EMIT_RS( svga, curr->stencil_writemask, STENCILWRITEMASK, fail ); + } + + EMIT_RS( svga, curr->zenable, ZENABLE, fail ); + if (curr->zenable) { + EMIT_RS( svga, curr->zfunc, ZFUNC, fail ); + EMIT_RS( svga, curr->zwriteenable, ZWRITEENABLE, fail ); + } + + EMIT_RS( svga, curr->alphatestenable, ALPHATESTENABLE, fail ); + if (curr->alphatestenable) { + EMIT_RS( svga, curr->alphafunc, ALPHAFUNC, fail ); + EMIT_RS_FLOAT( svga, curr->alpharef, ALPHAREF, fail ); + } + } + + + if (dirty & SVGA_NEW_RAST) + { + const struct svga_rasterizer_state *curr = svga->curr.rast; + + /* Shademode: still need to rearrange index list to move + * flat-shading PV first vertex. + */ + EMIT_RS( svga, curr->shademode, SHADEMODE, fail ); + EMIT_RS( svga, curr->cullmode, CULLMODE, fail ); + EMIT_RS( svga, curr->scissortestenable, SCISSORTESTENABLE, fail ); + EMIT_RS( svga, curr->multisampleantialias, MULTISAMPLEANTIALIAS, fail ); + EMIT_RS( svga, curr->lastpixel, LASTPIXEL, fail ); + EMIT_RS( svga, curr->linepattern, LINEPATTERN, fail ); + EMIT_RS_FLOAT( svga, curr->pointsize, POINTSIZE, fail ); + EMIT_RS_FLOAT( svga, curr->pointsize_min, POINTSIZEMIN, fail ); + EMIT_RS_FLOAT( svga, curr->pointsize_max, POINTSIZEMAX, fail ); + } + + if (dirty & (SVGA_NEW_RAST | SVGA_NEW_FRAME_BUFFER | SVGA_NEW_NEED_PIPELINE)) + { + const struct svga_rasterizer_state *curr = svga->curr.rast; + float slope = 0.0; + float bias = 0.0; + + /* Need to modify depth bias according to bound depthbuffer + * format. Don't do hardware depthbias while the software + * pipeline is active. + */ + if (!svga->state.sw.need_pipeline && + svga->curr.framebuffer.zsbuf) + { + slope = curr->slopescaledepthbias; + bias = svga->curr.depthscale * curr->depthbias; + } + + EMIT_RS_FLOAT( svga, slope, SLOPESCALEDEPTHBIAS, fail ); + EMIT_RS_FLOAT( svga, bias, DEPTHBIAS, fail ); + } + + + if (queue.rs_count) { + SVGA3dRenderState *rs; + + if (SVGA3D_BeginSetRenderState( svga->swc, + &rs, + queue.rs_count ) != PIPE_OK) + goto fail; + + memcpy( rs, + queue.rs, + queue.rs_count * sizeof queue.rs[0]); + + SVGA_FIFOCommitAll( svga->swc ); + } + + /* Also blend color: + */ + + return 0; + +fail: + /* XXX: need to poison cached hardware state on failure to ensure + * dirty state gets re-emitted. Fix this by re-instating partial + * FIFOCommit command and only updating cached hw state once the + * initial allocation has succeeded. + */ + memset(svga->state.hw_draw.rs, 0xcd, sizeof(svga->state.hw_draw.rs)); + + return PIPE_ERROR_OUT_OF_MEMORY; +} + + +struct svga_tracked_state svga_hw_rss = +{ + "hw rss state", + + (SVGA_NEW_BLEND | + SVGA_NEW_DEPTH_STENCIL | + SVGA_NEW_RAST | + SVGA_NEW_FRAME_BUFFER | + SVGA_NEW_NEED_PIPELINE), + + emit_rss +}; |