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nv30: add state scissor, based on nv40 one

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This commit is contained in:
Patrice Mandin 2008-06-23 20:43:22 +02:00
parent 8b72737a0b
commit e5bbb18441
3 changed files with 39 additions and 0 deletions
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1
src/gallium/drivers/nv30/Makefile
View file

@ -17,6 +17,7 @@ DRIVER_SOURCES = \
nv30_state_emit.c \
nv30_state_fb.c \
nv30_state_rasterizer.c \
nv30_state_scissor.c \
nv30_surface.c \
nv30_vbo.c \
nv30_vertprog.c

3
src/gallium/drivers/nv30/nv30_context.h
View file

@ -90,6 +90,8 @@ struct nv30_blend_state_new {
struct nv30_state {
unsigned scissor_enabled;
struct nouveau_stateobj *hw[NV30_STATE_MAX];
};
@ -104,6 +106,7 @@ struct nv30_context {
/* HW state derived from pipe states */
struct nv30_state state;
struct pipe_scissor_state scissor;
uint32_t dirty;

35
src/gallium/drivers/nv30/nv30_state_scissor.c Normal file
View file

@ -0,0 +1,35 @@
#include "nv30_context.h"
static boolean
nv30_state_scissor_validate(struct nv30_context *nv30)
{
struct pipe_rasterizer_state *rast = &nv30->rasterizer->pipe;
struct pipe_scissor_state *s = &nv30->scissor;
struct nouveau_stateobj *so;
if (nv30->state.hw[NV30_STATE_SCISSOR] &&
(rast->scissor == 0 && nv30->state.scissor_enabled == 0))
return FALSE;
nv30->state.scissor_enabled = rast->scissor;
so = so_new(3, 0);
so_method(so, nv30->screen->rankine, NV34TCL_SCISSOR_HORIZ, 2);
if (nv30->state.scissor_enabled) {
so_data (so, ((s->maxx - s->minx) << 16) | s->minx);
so_data (so, ((s->maxy - s->miny) << 16) | s->miny);
} else {
so_data (so, 4096 << 16);
so_data (so, 4096 << 16);
}
so_ref(so, &nv30->state.hw[NV30_STATE_SCISSOR]);
return TRUE;
}
struct nv30_state_entry nv30_state_scissor = {
.validate = nv30_state_scissor_validate,
.dirty = {
.pipe = NV30_NEW_SCISSOR | NV30_NEW_RAST,
.hw = NV30_STATE_SCISSOR
}
};