diff options
| -rw-r--r-- | src/intel/compiler/brw_compiler.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/intel/compiler/brw_compiler.h b/src/intel/compiler/brw_compiler.h index bebd2447361..66d6a6f5ee8 100644 --- a/src/intel/compiler/brw_compiler.h +++ b/src/intel/compiler/brw_compiler.h @@ -188,6 +188,15 @@ struct brw_sampler_prog_key_data { #define BRW_ATTRIB_WA_SIGN 32 /* interpret as signed in shader */ #define BRW_ATTRIB_WA_SCALE 64 /* interpret as scaled in shader */ +/** + * OpenGL attribute slots fall in [0, VERT_ATTRIB_MAX - 1] with the range + * [VERT_ATTRIB_GENERIC0, VERT_ATTRIB_MAX - 1] reserved for up to 16 user + * input vertex attributes. In Vulkan, we expose up to 28 user vertex input + * attributes that are mapped to slots also starting at VERT_ATTRIB_GENERIC0. + */ +#define MAX_GL_VERT_ATTRIB VERT_ATTRIB_MAX +#define MAX_VK_VERT_ATTRIB (VERT_ATTRIB_GENERIC0 + 28) + /** The program key for Vertex Shaders. */ struct brw_vs_prog_key { unsigned program_string_id; @@ -196,8 +205,15 @@ struct brw_vs_prog_key { * Per-attribute workaround flags * * For each attribute, a combination of BRW_ATTRIB_WA_*. + * + * For OpenGL, where we expose a maximum of 16 user input atttributes + * we only need up to VERT_ATTRIB_MAX slots, however, in Vulkan + * slots preceding VERT_ATTRIB_GENERIC0 are unused and we can + * expose up to 28 user input vertex attributes that are mapped to slots + * starting at VERT_ATTRIB_GENERIC0, so this array needs to be large + * enough to hold this many slots. */ - uint8_t gl_attrib_wa_flags[VERT_ATTRIB_MAX]; + uint8_t gl_attrib_wa_flags[MAX2(MAX_GL_VERT_ATTRIB, MAX_VK_VERT_ATTRIB)]; bool copy_edgeflag:1; |