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/*
* (C) Gražvydas "notaz" Ignotas, 2011
*
* This work is licensed under the terms of any of these licenses
* (at your option):
* - GNU GPL, version 2 or later.
* - GNU LGPL, version 2.1 or later.
* See the COPYING file in the top-level directory.
*/
#include "gpu.h"
#include "../../frontend/plugin_lib.h"
#include "../../frontend/cspace.h"
static const struct rearmed_cbs *cbs;
static void *screen_buf;
int vout_init(void)
{
return 0;
}
int vout_finish(void)
{
return 0;
}
static void blit(void)
{
static uint32_t old_status;
static int old_h;
int x = gpu.screen.x & ~1; // alignment needed by blitter
int y = gpu.screen.y;
int w = gpu.screen.w;
int h = gpu.screen.h;
uint16_t *vram = gpu.vram;
int stride = gpu.screen.hres;
int fb_offs, doffs;
uint8_t *dest;
fb_offs = y * 1024 + x;
if ((gpu.status.reg ^ old_status) & ((7<<16)|(1<<21)) || h != old_h) // width|rgb24 change?
{
old_status = gpu.status.reg;
old_h = h;
screen_buf = cbs->pl_vout_set_mode(stride, h, gpu.status.rgb24 ? 24 : 16);
}
dest = (uint8_t *)screen_buf;
// only do centering, at least for now
doffs = (stride - w) / 2 & ~1;
if (gpu.status.rgb24)
{
#ifndef MAEMO
dest += (doffs / 8) * 24;
for (; h-- > 0; dest += stride * 3, fb_offs += 1024)
{
fb_offs &= 1024*512-1;
bgr888_to_rgb888(dest, vram + fb_offs, w * 3);
}
#else
dest += doffs * 2;
for (; h-- > 0; dest += stride * 2, fb_offs += 1024)
{
fb_offs &= 1024*512-1;
bgr888_to_rgb565(dest, vram + fb_offs, w * 3);
}
#endif
}
else
{
dest += doffs * 2;
for (; h-- > 0; dest += stride * 2, fb_offs += 1024)
{
fb_offs &= 1024*512-1;
bgr555_to_rgb565(dest, vram + fb_offs, w * 2);
}
}
screen_buf = cbs->pl_vout_flip();
}
void GPUupdateLace(void)
{
if (gpu.status.blanking || !gpu.state.fb_dirty)
return;
if (gpu.frameskip.set) {
if (!gpu.frameskip.frame_ready && gpu.frameskip.skipped_blits < 9) {
gpu.frameskip.skipped_blits++;
return;
}
gpu.frameskip.frame_ready = 0;
gpu.frameskip.skipped_blits = 0;
}
renderer_flush_queues();
blit();
gpu.state.fb_dirty = 0;
}
long GPUopen(void)
{
gpu.frameskip.active = 0;
gpu.frameskip.frame_ready = 1;
cbs->pl_vout_open();
screen_buf = cbs->pl_vout_flip();
return 0;
}
long GPUclose(void)
{
cbs->pl_vout_close();
return 0;
}
void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_)
{
cbs = cbs_;
gpu.frameskip.set = cbs->frameskip;
gpu.frameskip.advice = &cbs->fskip_advice;
gpu.frameskip.active = 0;
gpu.frameskip.frame_ready = 1;
}
// vim:shiftwidth=2:expandtab
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