* Keith Whitwell <keith@tungstengraphics.com>
*/
-
+#include "main/macros.h"
#include "st_context.h"
-#include "st_cache.h"
+#include "st_atom.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
-#include "st_atom.h"
+#include "cso_cache/cso_context.h"
+
static GLuint translate_fill( GLenum mode )
{
}
}
-static GLboolean get_offset_flag( GLuint fill_mode,
- const struct gl_polygon_attrib *p )
-{
- switch (fill_mode) {
- case PIPE_POLYGON_MODE_POINT:
- return p->OffsetPoint;
- case PIPE_POLYGON_MODE_LINE:
- return p->OffsetLine;
- case PIPE_POLYGON_MODE_FILL:
- return p->OffsetFill;
- default:
- assert(0);
- return 0;
- }
-}
static void update_raster_state( struct st_context *st )
{
- GLcontext *ctx = st->ctx;
- struct pipe_rasterizer_state raster;
- const struct cso_rasterizer *cso;
+ struct gl_context *ctx = st->ctx;
+ struct pipe_rasterizer_state *raster = &st->state.rasterizer;
+ const struct gl_vertex_program *vertProg = ctx->VertexProgram._Current;
+ const struct gl_fragment_program *fragProg = ctx->FragmentProgram._Current;
+ uint i;
+
+ memset(raster, 0, sizeof(*raster));
- memset(&raster, 0, sizeof(raster));
-
/* _NEW_POLYGON, _NEW_BUFFERS
*/
{
- if (ctx->Polygon.FrontFace == GL_CCW)
- raster.front_winding = PIPE_WINDING_CCW;
- else
- raster.front_winding = PIPE_WINDING_CW;
-
- /* XXX
- * I think the intention here is that user-created framebuffer objects
- * use Y=0=TOP layout instead of OpenGL's normal Y=0=bottom layout.
- * Flipping Y changes CW to CCW and vice-versa.
- * But this is an implementation/driver-specific artifact - remove...
+ raster->front_ccw = (ctx->Polygon.FrontFace == GL_CCW);
+
+ /*
+ * Gallium's surfaces are Y=0=TOP orientation. OpenGL is the
+ * opposite. Window system surfaces are Y=0=TOP. Mesa's FBOs
+ * must match OpenGL conventions so FBOs use Y=0=BOTTOM. In that
+ * case, we must invert Y and flip the notion of front vs. back.
*/
- if (ctx->DrawBuffer && ctx->DrawBuffer->Name != 0)
- raster.front_winding ^= PIPE_WINDING_BOTH;
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
+ /* Drawing to an FBO. The viewport will be inverted. */
+ raster->front_ccw ^= 1;
+ }
}
/* _NEW_LIGHT
*/
if (ctx->Light.ShadeModel == GL_FLAT)
- raster.flatshade = 1;
+ raster->flatshade = 1;
+
+ if (ctx->Light.ProvokingVertex == GL_FIRST_VERTEX_CONVENTION_EXT)
+ raster->flatshade_first = 1;
/* _NEW_LIGHT | _NEW_PROGRAM
*
* Back-face colors can come from traditional lighting (when
- * GL_LIGHT_MODEL_TWO_SIDE is set) or from vertex programs (when
+ * GL_LIGHT_MODEL_TWO_SIDE is set) or from vertex programs/shaders (when
* GL_VERTEX_PROGRAM_TWO_SIDE is set). Note the logic here.
*/
- if (ctx->VertexProgram._Enabled) {
- raster.light_twoside = ctx->VertexProgram.TwoSideEnabled;
+ if (ctx->VertexProgram._Current) {
+ if (ctx->VertexProgram._Enabled ||
+ (ctx->Shader.CurrentVertexProgram &&
+ ctx->Shader.CurrentVertexProgram->LinkStatus)) {
+ /* user-defined vertex program or shader */
+ raster->light_twoside = ctx->VertexProgram.TwoSideEnabled;
+ }
+ else {
+ /* TNL-generated program */
+ raster->light_twoside = ctx->Light.Enabled && ctx->Light.Model.TwoSide;
+ }
}
else if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) {
- raster.light_twoside = 1;
+ raster->light_twoside = 1;
}
+ raster->clamp_vertex_color = ctx->Light._ClampVertexColor;
+
/* _NEW_POLYGON
*/
if (ctx->Polygon.CullFlag) {
- if (ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) {
- raster.cull_mode = PIPE_WINDING_BOTH;
- }
- else if (ctx->Polygon.CullFaceMode == GL_FRONT) {
- raster.cull_mode = raster.front_winding;
- }
- else {
- raster.cull_mode = raster.front_winding ^ PIPE_WINDING_BOTH;
+ switch (ctx->Polygon.CullFaceMode) {
+ case GL_FRONT:
+ raster->cull_face = PIPE_FACE_FRONT;
+ break;
+ case GL_BACK:
+ raster->cull_face = PIPE_FACE_BACK;
+ break;
+ case GL_FRONT_AND_BACK:
+ raster->cull_face = PIPE_FACE_FRONT_AND_BACK;
+ break;
}
}
+ else {
+ raster->cull_face = PIPE_FACE_NONE;
+ }
/* _NEW_POLYGON
*/
{
- GLuint fill_front = translate_fill( ctx->Polygon.FrontMode );
- GLuint fill_back = translate_fill( ctx->Polygon.BackMode );
-
- if (raster.front_winding == PIPE_WINDING_CW) {
- raster.fill_cw = fill_front;
- raster.fill_ccw = fill_back;
- }
- else {
- raster.fill_cw = fill_back;
- raster.fill_ccw = fill_front;
- }
+ raster->fill_front = translate_fill( ctx->Polygon.FrontMode );
+ raster->fill_back = translate_fill( ctx->Polygon.BackMode );
/* Simplify when culling is active:
*/
- if (raster.cull_mode & PIPE_WINDING_CW) {
- raster.fill_cw = raster.fill_ccw;
+ if (raster->cull_face & PIPE_FACE_FRONT) {
+ raster->fill_front = raster->fill_back;
}
- if (raster.cull_mode & PIPE_WINDING_CCW) {
- raster.fill_ccw = raster.fill_cw;
+ if (raster->cull_face & PIPE_FACE_BACK) {
+ raster->fill_back = raster->fill_front;
}
}
*/
if (ctx->Polygon.OffsetUnits != 0.0 ||
ctx->Polygon.OffsetFactor != 0.0) {
- raster.offset_cw = get_offset_flag( raster.fill_cw, &ctx->Polygon );
- raster.offset_ccw = get_offset_flag( raster.fill_ccw, &ctx->Polygon );
- raster.offset_units = ctx->Polygon.OffsetUnits;
- raster.offset_scale = ctx->Polygon.OffsetFactor;
+ raster->offset_point = ctx->Polygon.OffsetPoint;
+ raster->offset_line = ctx->Polygon.OffsetLine;
+ raster->offset_tri = ctx->Polygon.OffsetFill;
+ }
+
+ if (ctx->Polygon.OffsetPoint ||
+ ctx->Polygon.OffsetLine ||
+ ctx->Polygon.OffsetFill) {
+ raster->offset_units = ctx->Polygon.OffsetUnits;
+ raster->offset_scale = ctx->Polygon.OffsetFactor;
}
if (ctx->Polygon.SmoothFlag)
- raster.poly_smooth = 1;
+ raster->poly_smooth = 1;
if (ctx->Polygon.StippleFlag)
- raster.poly_stipple_enable = 1;
+ raster->poly_stipple_enable = 1;
+ /* _NEW_POINT
+ */
+ raster->point_size = ctx->Point.Size;
+
+ if (!ctx->Point.PointSprite && ctx->Point.SmoothFlag)
+ raster->point_smooth = 1;
- /* _NEW_BUFFERS, _NEW_POLYGON
+ /* _NEW_POINT | _NEW_PROGRAM
*/
- if (raster.fill_cw != PIPE_POLYGON_MODE_FILL ||
- raster.fill_ccw != PIPE_POLYGON_MODE_FILL)
- {
- GLfloat mrd = (ctx->DrawBuffer ?
- ctx->DrawBuffer->_MRD :
- 1.0);
+ if (ctx->Point.PointSprite) {
+ /* origin */
+ if ((ctx->Point.SpriteOrigin == GL_UPPER_LEFT) ^
+ (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM))
+ raster->sprite_coord_mode = PIPE_SPRITE_COORD_UPPER_LEFT;
+ else
+ raster->sprite_coord_mode = PIPE_SPRITE_COORD_LOWER_LEFT;
- raster.offset_units = ctx->Polygon.OffsetFactor * mrd;
- raster.offset_scale = (ctx->Polygon.OffsetUnits * mrd *
- st->polygon_offset_scale);
+ /* Coord replacement flags. If bit 'k' is set that means
+ * that we need to replace GENERIC[k] attrib with an automatically
+ * computed texture coord.
+ */
+ for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
+ if (ctx->Point.CoordReplace[i]) {
+ raster->sprite_coord_enable |= 1 << i;
+ }
+ }
+ if (fragProg->Base.InputsRead & FRAG_BIT_PNTC) {
+ raster->sprite_coord_enable |=
+ 1 << (FRAG_ATTRIB_PNTC - FRAG_ATTRIB_TEX0);
+ }
+
+ raster->point_quad_rasterization = 1;
}
-
- /* _NEW_POINT
+
+ /* ST_NEW_VERTEX_PROGRAM
*/
- raster.point_size = ctx->Point.Size;
- raster.point_smooth = ctx->Point.SmoothFlag;
- raster.point_sprite = ctx->Point.PointSprite;
+ if (vertProg) {
+ if (vertProg->Base.Id == 0) {
+ if (vertProg->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_PSIZ)) {
+ /* generated program which emits point size */
+ raster->point_size_per_vertex = TRUE;
+ }
+ }
+ else if (ctx->VertexProgram.PointSizeEnabled) {
+ /* user-defined program and GL_VERTEX_PROGRAM_POINT_SIZE set */
+ raster->point_size_per_vertex = ctx->VertexProgram.PointSizeEnabled;
+ }
+ }
+ if (!raster->point_size_per_vertex) {
+ /* clamp size now */
+ raster->point_size = CLAMP(ctx->Point.Size,
+ ctx->Point.MinSize,
+ ctx->Point.MaxSize);
+ }
/* _NEW_LINE
*/
- raster.line_width = ctx->Line.Width;
- raster.line_smooth = ctx->Line.SmoothFlag;
- raster.line_stipple_enable = ctx->Line.StippleFlag;
- raster.line_stipple_pattern = ctx->Line.StipplePattern;
+ raster->line_smooth = ctx->Line.SmoothFlag;
+ if (ctx->Line.SmoothFlag) {
+ raster->line_width = CLAMP(ctx->Line.Width,
+ ctx->Const.MinLineWidthAA,
+ ctx->Const.MaxLineWidthAA);
+ }
+ else {
+ raster->line_width = CLAMP(ctx->Line.Width,
+ ctx->Const.MinLineWidth,
+ ctx->Const.MaxLineWidth);
+ }
+
+ raster->line_stipple_enable = ctx->Line.StippleFlag;
+ raster->line_stipple_pattern = ctx->Line.StipplePattern;
/* GL stipple factor is in [1,256], remap to [0, 255] here */
- raster.line_stipple_factor = ctx->Line.StippleFactor - 1;
+ raster->line_stipple_factor = ctx->Line.StippleFactor - 1;
/* _NEW_MULTISAMPLE */
- if (ctx->Multisample.Enabled)
- raster.multisample = 1;
+ if (ctx->Multisample._Enabled || st->force_msaa)
+ raster->multisample = 1;
/* _NEW_SCISSOR */
if (ctx->Scissor.Enabled)
- raster.scissor = 1;
+ raster->scissor = 1;
- cso = st_cached_rasterizer_state(st, &raster);
- if (st->state.rasterizer != cso) {
- st->state.rasterizer = cso;
- st->pipe->bind_rasterizer_state(st->pipe, cso->data);
- }
+ /* _NEW_FRAG_CLAMP */
+ raster->clamp_fragment_color = ctx->Color._ClampFragmentColor;
+
+ raster->gl_rasterization_rules = 1;
+
+ cso_set_rasterizer(st->cso_context, raster);
}
const struct st_tracked_state st_update_rasterizer = {
- .name = "st_update_rasterizer",
- .dirty = {
- .mesa = (_NEW_LIGHT | _NEW_POLYGON | _NEW_LINE | _NEW_SCISSOR |
- _NEW_POINT | _NEW_BUFFERS | _NEW_MULTISAMPLE),
- .st = 0,
+ "st_update_rasterizer", /* name */
+ {
+ (_NEW_BUFFERS |
+ _NEW_LIGHT |
+ _NEW_LINE |
+ _NEW_MULTISAMPLE |
+ _NEW_POINT |
+ _NEW_POLYGON |
+ _NEW_PROGRAM |
+ _NEW_SCISSOR |
+ _NEW_FRAG_CLAMP), /* mesa state dependencies*/
+ ST_NEW_VERTEX_PROGRAM, /* state tracker dependencies */
},
- .update = update_raster_state
+ update_raster_state /* update function */
};