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[r300] Document some registers in the POINT area

This commit is contained in:
Christoph Brill 2008-02-25 22:45:36 +01:00
parent a7fa3e093c
commit 090e2adaa8
1 changed files with 32 additions and 9 deletions
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41
src/mesa/drivers/dri/r300/r300_reg.h
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@ -633,15 +633,17 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
#define R300_GA_POINT_S1 0x4208 #define R300_GA_POINT_S1 0x4208
#define R300_GA_TRIANGLE_STIPPLE 0x4214 #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 /* The pointsize is given in multiples of 6. The pointsize can be enormous:
* framebuffer. * 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_GA_POINT_SIZE 0x421C
# define R300_POINTSIZE_Y_SHIFT 0 # define R300_POINTSIZE_Y_SHIFT 0
# define R300_POINTSIZE_Y_MASK (0xFFFF << 0) /* GUESS */ # define R300_POINTSIZE_Y_MASK 0x0000ffff
# define R300_POINTSIZE_X_SHIFT 16 # define R300_POINTSIZE_X_SHIFT 16
# define R300_POINTSIZE_X_MASK (0xFFFF << 16) /* GUESS */ # define R300_POINTSIZE_X_MASK 0xffff0000
# define R300_POINTSIZE_MAX (R300_POINTSIZE_Y_MASK / 6) # define R300_POINTSIZE_MAX (R300_POINTSIZE_Y_MASK / 6)
/* Blue fill color */ /* Blue fill color */
@ -691,8 +693,13 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
/** TODO: looks wrong */ /** TODO: looks wrong */
# define R300_LINE_CNT_VE (1 << 17) # define R300_LINE_CNT_VE (1 << 17)
/* Some sort of scale or clamp value for texcoordless textures. */ /* Line Stipple configuration information. */
#define R300_GA_LINE_STIPPLE_CONFIG 0x4238 #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_INDEX 0x4250
#define R500_GA_US_VECTOR_DATA 0x4254 #define R500_GA_US_VECTOR_DATA 0x4254
@ -790,6 +797,11 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
/* Current value of stipple accumulator. */ /* Current value of stipple accumulator. */
#define R300_GA_LINE_STIPPLE_VALUE 0x4260 #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 */ /* GA Input fifo high water marks */
#define GA_FIFO_CNTL 0x4270 #define GA_FIFO_CNTL 0x4270
# define GA_FIFO_CNTL_VERTEX_FIFO_MASK 0x00000007 # 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_PM_BACK_FILL (1 << 8)
#define R300_GA_ROUND_MODE 0x428c #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. */ /* Specifies the scale to apply to fog. */
#define R300_RE_FOG_SCALE 0x4294 #define R300_RE_FOG_SCALE 0x4294
/* Specifies the offset to apply to fog. */ /* Specifies the offset to apply to fog. */