diff options
| author | Christoph Brill <egore911@egore911.de> | 2008-02-25 22:45:36 +0100 |
|---|---|---|
| committer | Christoph Brill <egore911@egore911.de> | 2008-02-25 22:45:36 +0100 |
| commit | 090e2adaa85d66b22e06a36476f82c8b950d9932 (patch) | |
| tree | 5e2068c7a7217ab245711d912bb4c7fdaff39fbd /src | |
| parent | a7fa3e093c4230eb185868895bce39bbac08a1bd (diff) | |
[r300] Document some registers in the POINT area
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_reg.h | 41 |
1 files changed, 32 insertions, 9 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h index 1ae6c02365..5bc71b1b05 100644 --- a/src/mesa/drivers/dri/r300/r300_reg.h +++ b/src/mesa/drivers/dri/r300/r300_reg.h @@ -633,15 +633,17 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. #define R300_GA_POINT_S1 0x4208 #define R300_GA_TRIANGLE_STIPPLE 0x4214 -/* The pointsize is given in multiples of 6. The pointsize can be - * enormous: Clear() renders a single point that fills the entire - * framebuffer. + +/* The pointsize is given in multiples of 6. The pointsize can be enormous: + * Clear() renders a single point that fills the entire framebuffer. + * 1/2 Height of point; fixed (16.0), subpixel format (1/12 or 1/16, even if in + * 8b precision). */ #define R300_GA_POINT_SIZE 0x421C -# define R300_POINTSIZE_Y_SHIFT 0 -# define R300_POINTSIZE_Y_MASK (0xFFFF << 0) /* GUESS */ -# define R300_POINTSIZE_X_SHIFT 16 -# define R300_POINTSIZE_X_MASK (0xFFFF << 16) /* GUESS */ +# define R300_POINTSIZE_Y_SHIFT 0 +# define R300_POINTSIZE_Y_MASK 0x0000ffff +# define R300_POINTSIZE_X_SHIFT 16 +# define R300_POINTSIZE_X_MASK 0xffff0000 # define R300_POINTSIZE_MAX (R300_POINTSIZE_Y_MASK / 6) /* Blue fill color */ @@ -691,8 +693,13 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. /** TODO: looks wrong */ # define R300_LINE_CNT_VE (1 << 17) -/* Some sort of scale or clamp value for texcoordless textures. */ -#define R300_GA_LINE_STIPPLE_CONFIG 0x4238 +/* Line Stipple configuration information. */ +#define GA_LINE_STIPPLE_CONFIG 0x4238 +# define GA_LINE_STIPPLE_CONFIG_LINE_RESET_NO (0 << 0) +# define GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE (1 << 0) +# define GA_LINE_STIPPLE_CONFIG_LINE_RESET_PACKET (2 << 0) +# define GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_SHIFT 2 +# define GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK 0xfffffffc #define R500_GA_US_VECTOR_INDEX 0x4250 #define R500_GA_US_VECTOR_DATA 0x4254 @@ -790,6 +797,11 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. /* Current value of stipple accumulator. */ #define R300_GA_LINE_STIPPLE_VALUE 0x4260 +/* S Texture Coordinate Value for Vertex 0 of Line (stuff textures -- i.e. AA) */ +#define GA_LINE_S0 0x4264 +/* S Texture Coordinate Value for Vertex 1 of Lines (V2 of parallelogram -- stuff textures -- i.e. AA) */ +#define GA_LINE_S1 0x4268 + /* GA Input fifo high water marks */ #define GA_FIFO_CNTL 0x4270 # define GA_FIFO_CNTL_VERTEX_FIFO_MASK 0x00000007 @@ -869,6 +881,17 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. # define R300_PM_BACK_FILL (1 << 8) #define R300_GA_ROUND_MODE 0x428c + +/* Specifies x & y offsets for vertex data after conversion to FP. + * Offsets are in S15 format (subpixels -- 1/12 or 1/16, even in 8b + * subprecision). + */ +#define GA_OFFSET 0x4290 +# define GA_OFFSET_X_OFFSET_SHIFT 0 +# define GA_OFFSET_X_OFFSET_MASK 0x0000ffff +# define GA_OFFSET_Y_OFFSET_SHIFT 16 +# define GA_OFFSET_Y_OFFSET_MASK 0xffff0000 + /* Specifies the scale to apply to fog. */ #define R300_RE_FOG_SCALE 0x4294 /* Specifies the offset to apply to fog. */ |