From 5c6e0d1c7dd63df00c83e16ce6ba878fe345513a Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Mon, 13 Mar 2017 18:20:02 -0700 Subject: [PATCH] i965: introduce modifier selection. Nothing special here other than a brief introduction to modifier selection. Originally this was part of another patch but was split out from gbm: Introduce modifiers into surface/bo creation by request of Emil. Requested-by: Emil Velikov Signed-off-by: Ben Widawsky Reviewed-by: Jason Ekstrand --- src/mesa/drivers/dri/i965/intel_screen.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c index 5f9dea6..81cb0de 100644 --- a/src/mesa/drivers/dri/i965/intel_screen.c +++ b/src/mesa/drivers/dri/i965/intel_screen.c @@ -41,6 +41,10 @@ #include "utils.h" #include "xmlpool.h" +#ifndef DRM_FORMAT_MOD_INVALID +#define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1) +#endif + static const __DRIconfigOptionsExtension brw_config_options = { .base = { __DRI_CONFIG_OPTIONS, 1 }, .xml = @@ -505,6 +509,15 @@ intel_destroy_image(__DRIimage *image) free(image); } +static uint64_t +select_best_modifier(struct gen_device_info *devinfo, + const uint64_t *modifiers, + const unsigned count) +{ + /* Modifiers are not supported by this DRI driver */ + return DRM_FORMAT_MOD_INVALID; +} + static __DRIimage * intel_create_image_common(__DRIscreen *dri_screen, int width, int height, int format, @@ -525,6 +538,12 @@ intel_create_image_common(__DRIscreen *dri_screen, */ assert(!(use && count)); + uint64_t modifier = select_best_modifier(&screen->devinfo, modifiers, count); + assert(modifier == DRM_FORMAT_MOD_INVALID); + + /* Historically, X-tiled was the default, and so lack of modifier means + * X-tiled. + */ tiling = I915_TILING_X; if (use & __DRI_IMAGE_USE_CURSOR) { if (width != 64 || height != 64) -- 2.7.4