diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/r300_reg.h')
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_reg.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h index 32f4ebeea2..cd72856c71 100644 --- a/src/mesa/drivers/dri/r300/r300_reg.h +++ b/src/mesa/drivers/dri/r300/r300_reg.h @@ -232,18 +232,14 @@ I am fairly certain that they are correct unless stated otherwise in comments. // experiments so far have shown that both *must* point to an instruction // inside the vertex program, otherwise the GPU locks up. // fglrx usually sets CNTL_3_UNKNOWN to the end of the program and -// CNTL_1_UNKNOWN somewhere in the middle, but the criteria are not clear. - -// Some tests would indicate that CNTL_3_UNKNOWN is set to program len - -// number of "temp to result instrutions". I havent yet seen a case where -// "temp to result instrutions" have not been moved at the end of program. -// However tests have shown that fgls vertex program implementation is -// not perfect and im having hard-time trusting -// it at the time being. -aet +// CNTL_1_UNKNOWN points to instruction where last write to position takes place. +// Most likely this is used to ignore rest of the program in cases where group of verts arent visible. +// For some reason this "section" is sometimes accepted other instruction that have +// no relationship with position calculations. */ #define R300_VAP_PVS_CNTL_1 0x22D0 # define R300_PVS_CNTL_1_PROGRAM_START_SHIFT 0 -# define R300_PVS_CNTL_1_UNKNOWN_SHIFT 10 +# define R300_PVS_CNTL_1_POS_END_SHIFT 10 # define R300_PVS_CNTL_1_PROGRAM_END_SHIFT 20 /* Addresses are relative the the vertex program parameters area. */ #define R300_VAP_PVS_CNTL_2 0x22D4 @@ -292,11 +288,15 @@ I am fairly certain that they are correct unless stated otherwise in comments. # define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_6_COMP_CNT_SHIFT 18 # define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_7_COMP_CNT_SHIFT 21 +/* UNK30 seems to enables point to quad transformation on textures + (or something closely related to that). + This bit is rather fatal at the time being due to lackings at pixel shader side */ #define R300_GB_ENABLE 0x4008 # define R300_GB_POINT_STUFF_ENABLE (1<<0) # define R300_GB_LINE_STUFF_ENABLE (1<<1) # define R300_GB_TRIANGLE_STUFF_ENABLE (1<<2) # define R300_GB_STENCIL_AUTO_ENABLE (1<<4) +# define R300_GB_UNK30 (1<<30) /* each of the following is 2 bits wide */ #define R300_GB_TEX_REPLICATE 0 #define R300_GB_TEX_ST 1 |