diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_swtnl_state.c')
-rw-r--r-- | src/gallium/drivers/svga/svga_swtnl_state.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_swtnl_state.c b/src/gallium/drivers/svga/svga_swtnl_state.c new file mode 100644 index 0000000..94b6ccc --- /dev/null +++ b/src/gallium/drivers/svga/svga_swtnl_state.c @@ -0,0 +1,237 @@ +/********************************************************** + * 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 "draw/draw_context.h" +#include "draw/draw_vbuf.h" +#include "pipe/p_inlines.h" +#include "pipe/p_state.h" +#include "util/u_memory.h" + +#include "svga_context.h" +#include "svga_swtnl.h" +#include "svga_state.h" + +#include "svga_swtnl_private.h" + + +#define SVGA_POINT_ADJ_X -0.375 +#define SVGA_POINT_ADJ_Y -0.5 + +#define SVGA_LINE_ADJ_X -0.5 +#define SVGA_LINE_ADJ_Y -0.5 + +#define SVGA_TRIANGLE_ADJ_X -0.375 +#define SVGA_TRIANGLE_ADJ_Y -0.5 + + +static void set_draw_viewport( struct svga_context *svga ) +{ + struct pipe_viewport_state vp = svga->curr.viewport; + float adjx = 0; + float adjy = 0; + + switch (svga->curr.reduced_prim) { + case PIPE_PRIM_POINTS: + adjx = SVGA_POINT_ADJ_X; + adjy = SVGA_POINT_ADJ_Y; + break; + case PIPE_PRIM_LINES: + /* XXX: This is to compensate for the fact that wide lines are + * going to be drawn with triangles, but we're not catching all + * cases where that will happen. + */ + if (svga->curr.rast->templ.line_width > 1.0) + { + adjx = SVGA_LINE_ADJ_X + 0.175; + adjy = SVGA_LINE_ADJ_Y - 0.175; + } + else { + adjx = SVGA_LINE_ADJ_X; + adjy = SVGA_LINE_ADJ_Y; + } + break; + case PIPE_PRIM_TRIANGLES: + adjx += SVGA_TRIANGLE_ADJ_X; + adjy += SVGA_TRIANGLE_ADJ_Y; + break; + } + + vp.translate[0] += adjx; + vp.translate[1] += adjy; + + draw_set_viewport_state(svga->swtnl.draw, &vp); +} + +static int update_swtnl_draw( struct svga_context *svga, + unsigned dirty ) +{ + draw_flush( svga->swtnl.draw ); + + if (dirty & SVGA_NEW_VS) + draw_bind_vertex_shader(svga->swtnl.draw, + svga->curr.vs->draw_shader); + + if (dirty & SVGA_NEW_VBUFFER) + draw_set_vertex_buffers(svga->swtnl.draw, + svga->curr.num_vertex_buffers, + svga->curr.vb); + + if (dirty & SVGA_NEW_VELEMENT) + draw_set_vertex_elements(svga->swtnl.draw, + svga->curr.num_vertex_elements, + svga->curr.ve ); + + if (dirty & SVGA_NEW_CLIP) + draw_set_clip_state(svga->swtnl.draw, + &svga->curr.clip); + + if (dirty & (SVGA_NEW_VIEWPORT | + SVGA_NEW_REDUCED_PRIMITIVE | + SVGA_NEW_RAST)) + set_draw_viewport( svga ); + + if (dirty & SVGA_NEW_RAST) + draw_set_rasterizer_state(svga->swtnl.draw, + &svga->curr.rast->templ); + + if (dirty & SVGA_NEW_FRAME_BUFFER) + draw_set_mrd(svga->swtnl.draw, + svga->curr.depthscale); + + return 0; +} + + +struct svga_tracked_state svga_update_swtnl_draw = +{ + "update draw module state", + (SVGA_NEW_VS | + SVGA_NEW_VBUFFER | + SVGA_NEW_VELEMENT | + SVGA_NEW_CLIP | + SVGA_NEW_VIEWPORT | + SVGA_NEW_RAST | + SVGA_NEW_FRAME_BUFFER | + SVGA_NEW_REDUCED_PRIMITIVE), + update_swtnl_draw +}; + + +int svga_swtnl_update_vdecl( struct svga_context *svga ) +{ + struct svga_vbuf_render *svga_render = svga_vbuf_render(svga->swtnl.backend); + struct draw_context *draw = svga->swtnl.draw; + struct vertex_info *vinfo = &svga_render->vertex_info; + SVGA3dVertexDecl vdecl[PIPE_MAX_ATTRIBS]; + const enum interp_mode colorInterp = + svga->curr.rast->templ.flatshade ? INTERP_CONSTANT : INTERP_LINEAR; + const struct svga_fragment_shader *fs = svga->curr.fs; + int offset = 0; + int nr_decls = 0; + int src, i; + + memset(vinfo, 0, sizeof(*vinfo)); + memset(vdecl, 0, sizeof(vdecl)); + + /* always add position */ + src = draw_find_shader_output(draw, TGSI_SEMANTIC_POSITION, 0); + draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_LINEAR, src); + vinfo->attrib[0].emit = EMIT_4F; + vdecl[0].array.offset = offset; + vdecl[0].identity.type = SVGA3D_DECLTYPE_FLOAT4; + vdecl[0].identity.usage = SVGA3D_DECLUSAGE_POSITIONT; + vdecl[0].identity.usageIndex = 0; + offset += 16; + nr_decls++; + + for (i = 0; i < fs->base.info.num_inputs; i++) { + unsigned name = fs->base.info.input_semantic_name[i]; + unsigned index = fs->base.info.input_semantic_index[i]; + src = draw_find_shader_output(draw, name, index); + vdecl[nr_decls].array.offset = offset; + vdecl[nr_decls].identity.usageIndex = fs->base.info.input_semantic_index[i]; + + switch (name) { + case TGSI_SEMANTIC_COLOR: + draw_emit_vertex_attr(vinfo, EMIT_4F, colorInterp, src); + vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_COLOR; + vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT4; + offset += 16; + nr_decls++; + break; + case TGSI_SEMANTIC_GENERIC: + draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src); + vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_TEXCOORD; + vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT4; + vdecl[nr_decls].identity.usageIndex += 1; + offset += 16; + nr_decls++; + break; + case TGSI_SEMANTIC_FOG: + draw_emit_vertex_attr(vinfo, EMIT_1F, INTERP_PERSPECTIVE, src); + vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_TEXCOORD; + vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT1; + assert(vdecl[nr_decls].identity.usageIndex == 0); + offset += 4; + nr_decls++; + break; + case TGSI_SEMANTIC_POSITION: + /* generated internally, not a vertex shader output */ + break; + default: + assert(0); + } + } + + draw_compute_vertex_size(vinfo); + + svga_render->vdecl_count = nr_decls; + for (i = 0; i < svga_render->vdecl_count; i++) + vdecl[i].array.stride = offset; + + if (memcmp(svga_render->vdecl, vdecl, sizeof(vdecl)) == 0) + return 0; + + memcpy(svga_render->vdecl, vdecl, sizeof(vdecl)); + svga->swtnl.new_vdecl = TRUE; + + return 0; +} + + +static int update_swtnl_vdecl( struct svga_context *svga, + unsigned dirty ) +{ + return svga_swtnl_update_vdecl( svga ); +} + + +struct svga_tracked_state svga_update_swtnl_vdecl = +{ + "update draw module vdecl", + (SVGA_NEW_VS | + SVGA_NEW_FS), + update_swtnl_vdecl +}; |