da79d76503
Switch over to use the CoordsReplaceBits bitmask. Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
312 lines
10 KiB
C
312 lines
10 KiB
C
/**************************************************************************
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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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/*
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* Authors:
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* Keith Whitwell <keithw@vmware.com>
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*/
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#include "main/macros.h"
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#include "main/framebuffer.h"
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#include "st_context.h"
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#include "st_atom.h"
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#include "st_debug.h"
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#include "st_program.h"
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#include "pipe/p_context.h"
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#include "pipe/p_defines.h"
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#include "cso_cache/cso_context.h"
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static GLuint translate_fill( GLenum mode )
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{
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switch (mode) {
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case GL_POINT:
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return PIPE_POLYGON_MODE_POINT;
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case GL_LINE:
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return PIPE_POLYGON_MODE_LINE;
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case GL_FILL:
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return PIPE_POLYGON_MODE_FILL;
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default:
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assert(0);
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return 0;
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}
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}
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static void update_raster_state( struct st_context *st )
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{
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struct gl_context *ctx = st->ctx;
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struct pipe_rasterizer_state *raster = &st->state.rasterizer;
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const struct gl_vertex_program *vertProg = ctx->VertexProgram._Current;
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const struct gl_fragment_program *fragProg = ctx->FragmentProgram._Current;
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memset(raster, 0, sizeof(*raster));
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/* _NEW_POLYGON, _NEW_BUFFERS
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*/
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{
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raster->front_ccw = (ctx->Polygon.FrontFace == GL_CCW);
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/* _NEW_TRANSFORM */
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if (ctx->Transform.ClipOrigin == GL_UPPER_LEFT) {
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raster->front_ccw ^= 1;
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}
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/*
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* Gallium's surfaces are Y=0=TOP orientation. OpenGL is the
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* opposite. Window system surfaces are Y=0=TOP. Mesa's FBOs
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* must match OpenGL conventions so FBOs use Y=0=BOTTOM. In that
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* case, we must invert Y and flip the notion of front vs. back.
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*/
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if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
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/* Drawing to an FBO. The viewport will be inverted. */
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raster->front_ccw ^= 1;
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}
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}
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/* _NEW_LIGHT
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*/
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raster->flatshade = ctx->Light.ShadeModel == GL_FLAT;
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raster->flatshade_first = ctx->Light.ProvokingVertex ==
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GL_FIRST_VERTEX_CONVENTION_EXT;
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/* _NEW_LIGHT | _NEW_PROGRAM */
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raster->light_twoside = ctx->VertexProgram._TwoSideEnabled;
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/*_NEW_LIGHT | _NEW_BUFFERS */
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raster->clamp_vertex_color = !st->clamp_vert_color_in_shader &&
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ctx->Light._ClampVertexColor;
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/* _NEW_POLYGON
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*/
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if (ctx->Polygon.CullFlag) {
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switch (ctx->Polygon.CullFaceMode) {
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case GL_FRONT:
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raster->cull_face = PIPE_FACE_FRONT;
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break;
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case GL_BACK:
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raster->cull_face = PIPE_FACE_BACK;
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break;
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case GL_FRONT_AND_BACK:
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raster->cull_face = PIPE_FACE_FRONT_AND_BACK;
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break;
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}
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}
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else {
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raster->cull_face = PIPE_FACE_NONE;
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}
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/* _NEW_POLYGON
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*/
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{
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if (ST_DEBUG & DEBUG_WIREFRAME) {
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raster->fill_front = PIPE_POLYGON_MODE_LINE;
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raster->fill_back = PIPE_POLYGON_MODE_LINE;
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}
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else {
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raster->fill_front = translate_fill( ctx->Polygon.FrontMode );
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raster->fill_back = translate_fill( ctx->Polygon.BackMode );
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}
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/* Simplify when culling is active:
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*/
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if (raster->cull_face & PIPE_FACE_FRONT) {
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raster->fill_front = raster->fill_back;
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}
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if (raster->cull_face & PIPE_FACE_BACK) {
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raster->fill_back = raster->fill_front;
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}
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}
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/* _NEW_POLYGON
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*/
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if (ctx->Polygon.OffsetPoint ||
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ctx->Polygon.OffsetLine ||
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ctx->Polygon.OffsetFill) {
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raster->offset_point = ctx->Polygon.OffsetPoint;
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raster->offset_line = ctx->Polygon.OffsetLine;
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raster->offset_tri = ctx->Polygon.OffsetFill;
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raster->offset_units = ctx->Polygon.OffsetUnits;
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raster->offset_scale = ctx->Polygon.OffsetFactor;
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raster->offset_clamp = ctx->Polygon.OffsetClamp;
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}
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raster->poly_smooth = ctx->Polygon.SmoothFlag;
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raster->poly_stipple_enable = ctx->Polygon.StippleFlag;
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/* _NEW_POINT
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*/
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raster->point_size = ctx->Point.Size;
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raster->point_smooth = !ctx->Point.PointSprite && ctx->Point.SmoothFlag;
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/* _NEW_POINT | _NEW_PROGRAM
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*/
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if (ctx->Point.PointSprite) {
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/* origin */
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if ((ctx->Point.SpriteOrigin == GL_UPPER_LEFT) ^
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(st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM))
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raster->sprite_coord_mode = PIPE_SPRITE_COORD_UPPER_LEFT;
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else
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raster->sprite_coord_mode = PIPE_SPRITE_COORD_LOWER_LEFT;
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/* Coord replacement flags. If bit 'k' is set that means
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* that we need to replace GENERIC[k] attrib with an automatically
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* computed texture coord.
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*/
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raster->sprite_coord_enable = ctx->Point.CoordReplaceBits &
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((1u << MAX_TEXTURE_COORD_UNITS) - 1);
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if (!st->needs_texcoord_semantic &&
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fragProg->Base.InputsRead & VARYING_BIT_PNTC) {
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raster->sprite_coord_enable |=
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1 << st_get_generic_varying_index(st, VARYING_SLOT_PNTC);
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}
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raster->point_quad_rasterization = 1;
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}
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/* ST_NEW_VERTEX_PROGRAM
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*/
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if (vertProg) {
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if (vertProg->Base.Id == 0) {
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if (vertProg->Base.OutputsWritten & BITFIELD64_BIT(VARYING_SLOT_PSIZ)) {
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/* generated program which emits point size */
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raster->point_size_per_vertex = TRUE;
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}
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}
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else if (ctx->API != API_OPENGLES2) {
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/* PointSizeEnabled is always set in ES2 contexts */
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raster->point_size_per_vertex = ctx->VertexProgram.PointSizeEnabled;
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}
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else {
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/* ST_NEW_TESSEVAL_PROGRAM | ST_NEW_GEOMETRY_PROGRAM */
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/* We have to check the last bound stage and see if it writes psize */
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struct gl_program *last = NULL;
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if (ctx->GeometryProgram._Current)
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last = &ctx->GeometryProgram._Current->Base;
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else if (ctx->TessEvalProgram._Current)
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last = &ctx->TessEvalProgram._Current->Base;
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else if (ctx->VertexProgram._Current)
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last = &ctx->VertexProgram._Current->Base;
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if (last)
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raster->point_size_per_vertex =
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!!(last->OutputsWritten & BITFIELD64_BIT(VARYING_SLOT_PSIZ));
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}
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}
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if (!raster->point_size_per_vertex) {
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/* clamp size now */
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raster->point_size = CLAMP(ctx->Point.Size,
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ctx->Point.MinSize,
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ctx->Point.MaxSize);
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}
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/* _NEW_LINE
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*/
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raster->line_smooth = ctx->Line.SmoothFlag;
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if (ctx->Line.SmoothFlag) {
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raster->line_width = CLAMP(ctx->Line.Width,
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ctx->Const.MinLineWidthAA,
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ctx->Const.MaxLineWidthAA);
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}
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else {
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raster->line_width = CLAMP(ctx->Line.Width,
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ctx->Const.MinLineWidth,
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ctx->Const.MaxLineWidth);
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}
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raster->line_stipple_enable = ctx->Line.StippleFlag;
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raster->line_stipple_pattern = ctx->Line.StipplePattern;
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/* GL stipple factor is in [1,256], remap to [0, 255] here */
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raster->line_stipple_factor = ctx->Line.StippleFactor - 1;
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/* _NEW_MULTISAMPLE */
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raster->multisample = _mesa_is_multisample_enabled(ctx);
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/* _NEW_MULTISAMPLE | _NEW_BUFFERS */
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raster->force_persample_interp =
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!st->force_persample_in_shader &&
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_mesa_is_multisample_enabled(ctx) &&
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ctx->Multisample.SampleShading &&
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ctx->Multisample.MinSampleShadingValue *
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_mesa_geometric_samples(ctx->DrawBuffer) > 1;
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/* _NEW_SCISSOR */
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raster->scissor = ctx->Scissor.EnableFlags;
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/* _NEW_FRAG_CLAMP */
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raster->clamp_fragment_color = !st->clamp_frag_color_in_shader &&
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ctx->Color._ClampFragmentColor;
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raster->half_pixel_center = 1;
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if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP)
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raster->bottom_edge_rule = 1;
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/* _NEW_TRANSFORM */
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if (ctx->Transform.ClipOrigin == GL_UPPER_LEFT)
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raster->bottom_edge_rule ^= 1;
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/* ST_NEW_RASTERIZER */
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raster->rasterizer_discard = ctx->RasterDiscard;
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if (st->edgeflag_culls_prims) {
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/* All edge flags are FALSE. Cull the affected faces. */
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if (raster->fill_front != PIPE_POLYGON_MODE_FILL)
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raster->cull_face |= PIPE_FACE_FRONT;
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if (raster->fill_back != PIPE_POLYGON_MODE_FILL)
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raster->cull_face |= PIPE_FACE_BACK;
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}
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/* _NEW_TRANSFORM */
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raster->depth_clip = !ctx->Transform.DepthClamp;
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raster->clip_plane_enable = ctx->Transform.ClipPlanesEnabled;
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raster->clip_halfz = (ctx->Transform.ClipDepthMode == GL_ZERO_TO_ONE);
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cso_set_rasterizer(st->cso_context, raster);
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}
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const struct st_tracked_state st_update_rasterizer = {
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"st_update_rasterizer", /* name */
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{
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(_NEW_BUFFERS |
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_NEW_LIGHT |
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_NEW_LINE |
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_NEW_MULTISAMPLE |
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_NEW_POINT |
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_NEW_POLYGON |
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_NEW_PROGRAM |
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_NEW_SCISSOR |
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_NEW_FRAG_CLAMP |
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_NEW_TRANSFORM), /* mesa state dependencies*/
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(ST_NEW_VERTEX_PROGRAM |
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ST_NEW_TESSEVAL_PROGRAM |
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ST_NEW_GEOMETRY_PROGRAM |
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ST_NEW_RASTERIZER), /* state tracker dependencies */
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},
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update_raster_state /* update function */
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};
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