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#include "util/u_math.h"
#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "util/u_inlines.h"
#include "brw_context.h"
/**
* called from intelDrawBuffer()
*/
static void brw_set_framebuffer_state( struct pipe_context *pipe,
const struct pipe_framebuffer_state *fb )
{
struct brw_context *brw = brw_context(pipe);
unsigned i;
/* Dimensions:
*/
if (brw->curr.fb.width != fb->width ||
brw->curr.fb.height != fb->height) {
brw->curr.fb.width = fb->width;
brw->curr.fb.height = fb->height;
brw->state.dirty.mesa |= PIPE_NEW_FRAMEBUFFER_DIMENSIONS;
}
/* Z/Stencil
*/
if (brw->curr.fb.zsbuf != fb->zsbuf) {
pipe_surface_reference(&brw->curr.fb.zsbuf, fb->zsbuf);
brw->state.dirty.mesa |= PIPE_NEW_DEPTH_BUFFER;
}
/* Color buffers:
*/
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
if (brw->curr.fb.cbufs[i] != fb->cbufs[i]) {
brw->state.dirty.mesa |= PIPE_NEW_COLOR_BUFFERS;
pipe_surface_reference(&brw->curr.fb.cbufs[i], fb->cbufs[i]);
}
}
if (brw->curr.fb.nr_cbufs != fb->nr_cbufs) {
brw->curr.fb.nr_cbufs = MIN2(BRW_MAX_DRAW_BUFFERS, fb->nr_cbufs);
brw->state.dirty.mesa |= PIPE_NEW_NR_CBUFS;
}
}
static void brw_set_viewport_state( struct pipe_context *pipe,
const struct pipe_viewport_state *viewport )
{
struct brw_context *brw = brw_context(pipe);
brw->curr.viewport = *viewport;
brw->curr.ccv.min_depth = viewport->scale[2] * -1.0 + viewport->translate[2];
brw->curr.ccv.max_depth = viewport->scale[2] * 1.0 + viewport->translate[2];
if (0)
debug_printf("%s depth range %f .. %f\n",
__FUNCTION__,
brw->curr.ccv.min_depth,
brw->curr.ccv.max_depth);
brw->state.dirty.mesa |= PIPE_NEW_VIEWPORT;
}
void brw_pipe_framebuffer_init( struct brw_context *brw )
{
brw->base.set_framebuffer_state = brw_set_framebuffer_state;
brw->base.set_viewport_state = brw_set_viewport_state;
}
void brw_pipe_framebuffer_cleanup( struct brw_context *brw )
{
struct pipe_framebuffer_state *fb = &brw->curr.fb;
int i;
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&fb->cbufs[i], NULL);
}
pipe_surface_reference(&fb->zsbuf, NULL);
}
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