diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_rast.c')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_rast.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_rast.c b/src/gallium/drivers/llvmpipe/lp_rast.c new file mode 100644 index 0000000000..4771f821b3 --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_rast.c @@ -0,0 +1,119 @@ + +struct lp_rasterizer *lp_rast_create( void ) +{ + return CALLOC_STRUCT(lp_rasterizer); +} + +void lp_rast_bind_surfaces( struct lp_rasterizer *, + struct pipe_surface *color, + struct pipe_surface *zstencil, + const float *clear_color, + double clear_depth, + unsigned clear_stencil) +{ + pipe_surface_reference(&rast->state.color, color); + pipe_surface_reference(&rast->state.depth, depth); + rast->state.clear_color = util_pack_8888(clear_color); + rast->state.clear_depth = clear_depth * 0xffffffff; + rast->state.clear_stencil = clear_stencil; +} + +/* Begining of each tile: + */ +void lp_rast_start_tile( struct lp_rasterizer *, + unsigned x, + unsigned y ) +{ + rast->x = x; + rast->y = y; +} + +void lp_rast_clear_color( struct lp_rasterizer *rast ) +{ + const unsigned clear_color = rast->state.clear_color; + unsigned i, j; + + for (i = 0; i < TILESIZE; i++) + for (j = 0; j < TILESIZE; j++) + rast->tile[i][j] = clear_color; +} + +void lp_rast_clear_depth( struct lp_rasterizer *rast ) +{ + const unsigned clear_depth = rast->state.clear_depth; + unsigned i, j; + + for (i = 0; i < TILESIZE; i++) + for (j = 0; j < TILESIZE; j++) + rast->tile[i][j] = clear_depth; +} + +void lp_rast_clear_stencil( struct lp_rasterizer *rast ) +{ + const unsigned clear_stencil = rast->state.clear_stencil; + + memset(rast->tile.stencil, clear_stencil, sizeof rast->tile.stencil ); +} + +void lp_rast_load_color( struct lp_rasterizer *rast ) +{ + /* call u_tile func to load colors from surface */ +} + +void lp_rast_load_zstencil( struct lp_rasterizer *rast ) +{ + /* call u_tile func to load depth (and stencil?) from surface */ +} + +/* Within a tile: + */ +void lp_rast_set_state( struct lp_rasterizer *rast, + const struct lp_rast_state *state ) +{ + rast->shader_state = state; + lp->quad.first->begin( lp->quad.first ); + +} + + +void lp_rast_shade_tile( struct lp_rasterizer *rast, + const struct lp_rast_shader_inputs *inputs ) +{ + /* Set up the silly quad coef pointers + */ + for (i = 0; i < 4; i++) { + rast->quads[i].posCoef = &inputs->posCoef; + rast->quads[i].coef = inputs->coef; + } + + /* Use the existing preference for 8x2 (four quads) shading: + */ + for (i = 0; i < TILESIZE; i += 8) { + for (j = 0; j < TILESIZE; j += 2) { + rast->shader_state.shade( inputs->jc, + rast->x + i, + rast->y + j, + rast->quads, 4 ); + } + } +} + +/* End of tile: + */ +void lp_rast_store_color( struct lp_rasterizer *rast ) +{ + /* call u_tile func to store colors to surface */ +} + +void lp_rast_store_zstencil( struct lp_rasterizer *rast ) +{ + /* call u_tile func to store depth/stencil to surface */ +} + +/* Shutdown: + */ +void lp_rast_destroy( struct lp_rasterizer *rast ) +{ + FREE(rast); +} + |