diff options
Diffstat (limited to 'src/mesa/drivers/dri')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_util.h | 31 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_sf_state.c | 22 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen7_sf_state.c | 21 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen8_sf_state.c | 5 |
4 files changed, 30 insertions, 49 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_util.h b/src/mesa/drivers/dri/i965/brw_util.h index 671d72e1cc7..04e4e944118 100644 --- a/src/mesa/drivers/dri/i965/brw_util.h +++ b/src/mesa/drivers/dri/i965/brw_util.h @@ -41,7 +41,7 @@ extern GLuint brw_translate_blend_factor( GLenum factor ); extern GLuint brw_translate_blend_equation( GLenum mode ); extern GLenum brw_fix_xRGB_alpha(GLenum function); -static inline float +static inline uint32_t brw_get_line_width(struct brw_context *brw) { /* From the OpenGL 4.4 spec: @@ -50,9 +50,32 @@ brw_get_line_width(struct brw_context *brw) * the supplied width to the nearest integer, then clamping it to the * implementation-dependent maximum non-antialiased line width." */ - return CLAMP(!brw->ctx.Multisample._Enabled && !brw->ctx.Line.SmoothFlag - ? roundf(brw->ctx.Line.Width) : brw->ctx.Line.Width, - 0.0, brw->ctx.Const.MaxLineWidth); + float line_width = + CLAMP(!brw->ctx.Multisample._Enabled && !brw->ctx.Line.SmoothFlag + ? roundf(brw->ctx.Line.Width) : brw->ctx.Line.Width, + 0.0, brw->ctx.Const.MaxLineWidth); + uint32_t line_width_u3_7 = U_FIXED(line_width, 7); + + /* Line width of 0 is not allowed when MSAA enabled */ + if (brw->ctx.Multisample._Enabled) { + if (line_width_u3_7 == 0) + line_width_u3_7 = 1; + } else if (brw->ctx.Line.SmoothFlag && line_width < 1.5) { + /* For 1 pixel line thickness or less, the general + * anti-aliasing algorithm gives up, and a garbage line is + * generated. Setting a Line Width of 0.0 specifies the + * rasterization of the "thinnest" (one-pixel-wide), + * non-antialiased lines. + * + * Lines rendered with zero Line Width are rasterized using + * Grid Intersection Quantization rules as specified by + * bspec section 6.3.12.1 Zero-Width (Cosmetic) Line + * Rasterization. + */ + line_width_u3_7 = 0; + } + + return line_width_u3_7; } #endif diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c index d5777647f7e..5809628e021 100644 --- a/src/mesa/drivers/dri/i965/gen6_sf_state.c +++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c @@ -361,27 +361,7 @@ upload_sf_state(struct brw_context *brw) /* _NEW_LINE */ { - float line_width = brw_get_line_width(brw); - uint32_t line_width_u3_7 = U_FIXED(line_width, 7); - - /* Line width of 0 is not allowed when MSAA enabled */ - if (ctx->Multisample._Enabled) { - if (line_width_u3_7 == 0) - line_width_u3_7 = 1; - } else if (ctx->Line.SmoothFlag && ctx->Line.Width < 1.5) { - /* For 1 pixel line thickness or less, the general - * anti-aliasing algorithm gives up, and a garbage line is - * generated. Setting a Line Width of 0.0 specifies the - * rasterization of the "thinnest" (one-pixel-wide), - * non-antialiased lines. - * - * Lines rendered with zero Line Width are rasterized using - * Grid Intersection Quantization rules as specified by - * bspec section 6.3.12.1 Zero-Width (Cosmetic) Line - * Rasterization. - */ - line_width_u3_7 = 0; - } + uint32_t line_width_u3_7 = brw_get_line_width(brw); dw3 |= line_width_u3_7 << GEN6_SF_LINE_WIDTH_SHIFT; } if (ctx->Line.SmoothFlag) { diff --git a/src/mesa/drivers/dri/i965/gen7_sf_state.c b/src/mesa/drivers/dri/i965/gen7_sf_state.c index 87ff284e31c..a20967caf5c 100644 --- a/src/mesa/drivers/dri/i965/gen7_sf_state.c +++ b/src/mesa/drivers/dri/i965/gen7_sf_state.c @@ -192,26 +192,7 @@ upload_sf_state(struct brw_context *brw) /* _NEW_LINE */ { - float line_width = brw_get_line_width(brw); - uint32_t line_width_u3_7 = U_FIXED(line_width, 7); - /* Line width of 0 is not allowed when MSAA enabled */ - if (ctx->Multisample._Enabled) { - if (line_width_u3_7 == 0) - line_width_u3_7 = 1; - } else if (ctx->Line.SmoothFlag && ctx->Line.Width < 1.5) { - /* For 1 pixel line thickness or less, the general - * anti-aliasing algorithm gives up, and a garbage line is - * generated. Setting a Line Width of 0.0 specifies the - * rasterization of the "thinnest" (one-pixel-wide), - * non-antialiased lines. - * - * Lines rendered with zero Line Width are rasterized using - * Grid Intersection Quantization rules as specified by - * bspec section 6.3.12.1 Zero-Width (Cosmetic) Line - * Rasterization. - */ - line_width_u3_7 = 0; - } + uint32_t line_width_u3_7 = brw_get_line_width(brw); dw2 |= line_width_u3_7 << GEN6_SF_LINE_WIDTH_SHIFT; } if (ctx->Line.SmoothFlag) { diff --git a/src/mesa/drivers/dri/i965/gen8_sf_state.c b/src/mesa/drivers/dri/i965/gen8_sf_state.c index 83ef62bc961..c2b585d0001 100644 --- a/src/mesa/drivers/dri/i965/gen8_sf_state.c +++ b/src/mesa/drivers/dri/i965/gen8_sf_state.c @@ -154,10 +154,7 @@ upload_sf(struct brw_context *brw) dw1 |= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE; /* _NEW_LINE */ - float line_width = brw_get_line_width(brw); - uint32_t line_width_u3_7 = U_FIXED(line_width, 7); - if (line_width_u3_7 == 0) - line_width_u3_7 = 1; + uint32_t line_width_u3_7 = brw_get_line_width(brw); if (brw->gen >= 9 || brw->is_cherryview) { dw1 |= line_width_u3_7 << GEN9_SF_LINE_WIDTH_SHIFT; } else { |