diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_sf.c | 5 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_sf.h | 3 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_sf_emit.c | 12 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm.c | 4 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm.h | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_fp.c | 26 |
6 files changed, 38 insertions, 13 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_sf.c b/src/mesa/drivers/dri/i965/brw_sf.c index c3c85978f4..e1c2c7777b 100644 --- a/src/mesa/drivers/dri/i965/brw_sf.c +++ b/src/mesa/drivers/dri/i965/brw_sf.c @@ -166,6 +166,9 @@ static void upload_sf_prog(struct brw_context *brw) key.do_flat_shading = (ctx->Light.ShadeModel == GL_FLAT); key.do_twoside_color = (ctx->Light.Enabled && ctx->Light.Model.TwoSide); + /* _NEW_HINT */ + key.linear_color = (ctx->Hint.PerspectiveCorrection == GL_FASTEST); + /* _NEW_POLYGON */ if (key.do_twoside_color) { /* If we're rendering to a FBO, we have to invert the polygon @@ -188,7 +191,7 @@ static void upload_sf_prog(struct brw_context *brw) const struct brw_tracked_state brw_sf_prog = { .dirty = { - .mesa = (_NEW_LIGHT|_NEW_POLYGON|_NEW_POINT), + .mesa = (_NEW_HINT | _NEW_LIGHT | _NEW_POLYGON | _NEW_POINT), .brw = (BRW_NEW_REDUCED_PRIMITIVE), .cache = CACHE_NEW_VS_PROG }, diff --git a/src/mesa/drivers/dri/i965/brw_sf.h b/src/mesa/drivers/dri/i965/brw_sf.h index 1c0fb70fe0..6426b6df9f 100644 --- a/src/mesa/drivers/dri/i965/brw_sf.h +++ b/src/mesa/drivers/dri/i965/brw_sf.h @@ -51,7 +51,8 @@ struct brw_sf_prog_key { GLuint do_flat_shading:1; GLuint frontface_ccw:1; GLuint do_point_sprite:1; - GLuint pad:10; + GLuint linear_color:1; /**< linear interp vs. perspective interp */ + GLuint pad:25; GLenum SpriteOrigin; }; diff --git a/src/mesa/drivers/dri/i965/brw_sf_emit.c b/src/mesa/drivers/dri/i965/brw_sf_emit.c index 862835f157..2f63610425 100644 --- a/src/mesa/drivers/dri/i965/brw_sf_emit.c +++ b/src/mesa/drivers/dri/i965/brw_sf_emit.c @@ -295,9 +295,6 @@ static void invert_det( struct brw_sf_compile *c) } -#define NON_PERPECTIVE_ATTRS (FRAG_BIT_WPOS | \ - FRAG_BIT_COL0 | \ - FRAG_BIT_COL1) static GLboolean calculate_masks( struct brw_sf_compile *c, GLuint reg, @@ -306,9 +303,16 @@ static GLboolean calculate_masks( struct brw_sf_compile *c, GLushort *pc_linear) { GLboolean is_last_attr = (reg == c->nr_setup_regs - 1); - GLuint persp_mask = c->key.attrs & ~NON_PERPECTIVE_ATTRS; + GLuint persp_mask; GLuint linear_mask; + if (c->key.do_flat_shading || c->key.linear_color) + persp_mask = c->key.attrs & ~(FRAG_BIT_WPOS | + FRAG_BIT_COL0 | + FRAG_BIT_COL1); + else + persp_mask = c->key.attrs & ~(FRAG_BIT_WPOS); + if (c->key.do_flat_shading) linear_mask = c->key.attrs & ~(FRAG_BIT_COL0|FRAG_BIT_COL1); else diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c index 3e476fd3be..34c8ceddb7 100644 --- a/src/mesa/drivers/dri/i965/brw_wm.c +++ b/src/mesa/drivers/dri/i965/brw_wm.c @@ -272,6 +272,9 @@ static void brw_wm_populate_key( struct brw_context *brw, /* _NEW_LIGHT */ key->flat_shade = (ctx->Light.ShadeModel == GL_FLAT); + /* _NEW_HINT */ + key->linear_color = (ctx->Hint.PerspectiveCorrection == GL_FASTEST); + /* _NEW_TEXTURE */ for (i = 0; i < BRW_MAX_TEX_UNIT; i++) { const struct gl_texture_unit *unit = &ctx->Texture.Unit[i]; @@ -351,6 +354,7 @@ const struct brw_tracked_state brw_wm_prog = { .dirty = { .mesa = (_NEW_COLOR | _NEW_DEPTH | + _NEW_HINT | _NEW_STENCIL | _NEW_POLYGON | _NEW_LINE | diff --git a/src/mesa/drivers/dri/i965/brw_wm.h b/src/mesa/drivers/dri/i965/brw_wm.h index fb15c03e83..ab0ab8bdbf 100644 --- a/src/mesa/drivers/dri/i965/brw_wm.h +++ b/src/mesa/drivers/dri/i965/brw_wm.h @@ -63,6 +63,7 @@ struct brw_wm_prog_key { GLuint computes_depth:1; /* could be derived from program string */ GLuint source_depth_to_render_target:1; GLuint flat_shade:1; + GLuint linear_color:1; /**< linear interpolation vs perspective interp */ GLuint runtime_check_aads_emit:1; GLuint projtex_mask:16; diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c index 1798d842c7..5b302cc309 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_fp.c +++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c @@ -354,13 +354,25 @@ static void emit_interp( struct brw_wm_compile *c, src_undef()); } else { - emit_op(c, - WM_LINTERP, - dst, - 0, - interp, - deltas, - src_undef()); + if (c->key.linear_color) { + emit_op(c, + WM_LINTERP, + dst, + 0, + interp, + deltas, + src_undef()); + } + else { + /* perspective-corrected color interpolation */ + emit_op(c, + WM_PINTERP, + dst, + 0, + interp, + deltas, + get_pixel_w(c)); + } } break; case FRAG_ATTRIB_FOGC: |