diff options
| -rw-r--r-- | src/intel/isl/isl_gen7.c | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/src/intel/isl/isl_gen7.c b/src/intel/isl/isl_gen7.c index ab47a7f6229..24d411f51e9 100644 --- a/src/intel/isl/isl_gen7.c +++ b/src/intel/isl/isl_gen7.c @@ -24,6 +24,25 @@ #include "isl_gen7.h" #include "isl_priv.h" +static bool +gen7_format_needs_valign2(const struct isl_device *dev, + enum isl_format format) +{ + assert(ISL_DEV_GEN(dev) == 7); + + /* From the Ivybridge PRM (2012-05-31), Volume 4, Part 1, Section 2.12.1, + * RENDER_SURFACE_STATE Surface Vertical Alignment: + * + * - Value of 1 [VALIGN_4] is not supported for format YCRCB_NORMAL + * (0x182), YCRCB_SWAPUVY (0x183), YCRCB_SWAPUV (0x18f), YCRCB_SWAPY + * (0x190) + * + * - VALIGN_4 is not supported for surface format R32G32B32_FLOAT. + */ + return isl_format_is_yuv(format) || + format == ISL_FORMAT_R32G32B32_FLOAT; +} + bool isl_gen7_choose_msaa_layout(const struct isl_device *dev, const struct isl_surf_init_info *info, @@ -81,6 +100,10 @@ isl_gen7_choose_msaa_layout(const struct isl_device *dev, * surfaces with RGBA8I, RGBA16I and RGBA32I. */ + /* Multisampling requires vertical alignment of four. */ + if (info->samples > 1 && gen7_format_needs_valign2(dev, info->format)) + return false; + /* More obvious restrictions */ if (isl_surf_usage_is_display(info->usage)) return false; @@ -152,25 +175,6 @@ isl_gen7_choose_msaa_layout(const struct isl_device *dev, return true; } -static bool -gen7_format_needs_valign2(const struct isl_device *dev, - enum isl_format format) -{ - assert(ISL_DEV_GEN(dev) == 7); - - /* From the Ivybridge PRM (2012-05-31), Volume 4, Part 1, Section 2.12.1, - * RENDER_SURFACE_STATE Surface Vertical Alignment: - * - * - Value of 1 [VALIGN_4] is not supported for format YCRCB_NORMAL - * (0x182), YCRCB_SWAPUVY (0x183), YCRCB_SWAPUV (0x18f), YCRCB_SWAPY - * (0x190) - * - * - VALIGN_4 is not supported for surface format R32G32B32_FLOAT. - */ - return isl_format_is_yuv(format) || - format == ISL_FORMAT_R32G32B32_FLOAT; -} - /** * @brief Filter out tiling flags that are incompatible with the surface. * |