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llvmpipe: Implement some of the rasterizer functions.

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This commit is contained in:
José Fonseca 2009-10-08 17:59:44 +01:00
parent 1caa26202c
commit 37b86aa55c
1 changed files with 75 additions and 13 deletions
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88
src/gallium/drivers/llvmpipe/lp_rast.c
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@ -37,7 +37,16 @@
struct lp_rasterizer *lp_rast_create( void )
{
return CALLOC_STRUCT(lp_rasterizer);
struct lp_rasterizer *rast;
rast = CALLOC_STRUCT(lp_rasterizer);
if(!rast)
return NULL;
rast->tile.color = align_malloc( TILE_SIZE*TILE_SIZE*4, 16 );
rast->tile.depth = align_malloc( TILE_SIZE*TILE_SIZE*4, 16 );
return rast;
}
void lp_rast_bind_surfaces( struct lp_rasterizer *rast,
@ -54,7 +63,7 @@ void lp_rast_bind_surfaces( struct lp_rasterizer *rast,
/* Begining of each tile:
*/
void lp_rast_start_tile( struct lp_rasterizer *,
void lp_rast_start_tile( struct lp_rasterizer *rast,
unsigned x,
unsigned y )
{
@ -68,9 +77,17 @@ void lp_rast_clear_color( struct lp_rasterizer *rast,
const unsigned clear_color = arg->clear.clear_color;
unsigned i, j;
for (i = 0; i < TILESIZE; i++)
for (j = 0; j < TILESIZE; j++)
rast->tile[i][j] = clear_color;
if (clear_color[0] == clear_color[1] &&
clear_color[1] == clear_color[2] &&
clear_color[2] == clear_color[3]) {
memset(rast->tile.color, clear_color[0], TILE_SIZE * TILE_SIZE * 4);
}
else {
for (y = 0; y < TILE_SIZE; y++)
for (x = 0; x < TILE_SIZE; x++)
for (chan = 0; chan < 4; ++chan)
TILE_PIXEL(rast->tile.color, x, y, chan) = clear_color[chan];
}
}
void lp_rast_clear_zstencil( struct lp_rasterizer *rast,
@ -79,9 +96,9 @@ void lp_rast_clear_zstencil( struct lp_rasterizer *rast,
const unsigned clear_color = arg->clear.clear_zstencil;
unsigned i, j;
for (i = 0; i < TILESIZE; i++)
for (j = 0; j < TILESIZE; j++)
rast->tile[i][j] = clear_depth;
for (i = 0; i < TILE_SIZE; i++)
for (j = 0; j < TILE_SIZE; j++)
rast->tile.depth[i][j] = clear_depth;
}
@ -108,9 +125,11 @@ void lp_rast_set_state( struct lp_rasterizer *rast,
void lp_rast_shade_tile( struct lp_rasterizer *rast,
const union lp_rast_cmd_arg *arg )
const union lp_rast_cmd_arg *arg,
const struct lp_rast_shader_inputs *inputs )
{
unsigned i;
/* Set up the silly quad coef pointers
*/
for (i = 0; i < 4; i++) {
@ -120,8 +139,8 @@ void lp_rast_shade_tile( struct lp_rasterizer *rast,
/* Use the existing preference for 8x2 (four quads) shading:
*/
for (i = 0; i < TILESIZE; i += 8) {
for (j = 0; j < TILESIZE; j += 2) {
for (i = 0; i < TILE_SIZE; i += 8) {
for (j = 0; j < TILE_SIZE; j += 2) {
rast->shader_state.shade( inputs->jc,
rast->x + i,
rast->y + j,
@ -189,13 +208,54 @@ void lp_rast_shade_quads( const struct lp_rast_state *state,
/* End of tile:
*/
void lp_rast_end_tile( struct lp_rasterizer *rast,
boolean write_depth )
{
/* call u_tile func to store colors to surface */
struct pipe_surface *surface;
struct pipe_screen *screen;
struct pipe_transfer *transfer;
const unsigned x = rast->x;
const unsigned y = rast->y;
unsigned w = TILE_SIZE;
unsigned h = TILE_SIZE;
surface = rast->state.color;
if(!surface)
return;
screen = surface->texture->screen;
if(x + w > surface->width)
w = surface->width - x;
if(y + h > surface->height)
h = surface->height - x;
transfer = screen->get_tex_transfer(screen,
surface->texture,
surface->face,
surface->level,
surface->zslice,
PIPE_TRANSFER_READ_WRITE,
x, y, w, h);
if(!transfer)
return;
map = screen->transfer_map(screen, transfer);
if(map) {
lp_tile_write_4ub(transfer->format,
rast->tile.color,
map, transfer->stride,
x, y, w, h);
screen->transfer_unmap(screen, transfer);
}
screen->tex_transfer_destroy(screen, transfer);
if (write_depth) {
/* call u_tile func to store depth/stencil to surface */
/* FIXME: call u_tile func to store depth/stencil to surface */
}
}
@ -203,6 +263,8 @@ void lp_rast_end_tile( struct lp_rasterizer *rast,
*/
void lp_rast_destroy( struct lp_rasterizer *rast )
{
align_free(rast->tile.depth);
align_free(rast->tile.color);
FREE(rast);
}