* See the COPYING file in the top-level directory.
*/
+#include <string.h>
#include "gpu.h"
#include "cspace.h"
#include "../../frontend/plugin_lib.h"
static const struct rearmed_cbs *cbs;
-static void *screen_buf;
int vout_init(void)
{
return 0;
}
-static void check_mode_change(void)
+static void check_mode_change(int force)
{
static uint32_t old_status;
static int old_h;
+ int w = gpu.screen.hres;
+ int h = gpu.screen.h;
+ int w_out = w;
+ int h_out = h;
+
+ gpu.state.enhancement_active =
+ gpu.get_enhancement_bufer != NULL && gpu.state.enhancement_enable
+ && w <= 512 && h <= 256 && !gpu.status.rgb24;
+
+ if (gpu.state.enhancement_active) {
+ w_out *= 2;
+ h_out *= 2;
+ }
// width|rgb24 change?
- if ((gpu.status.reg ^ old_status) & ((7<<16)|(1<<21)) || gpu.screen.h != old_h)
+ if (force || (gpu.status.reg ^ old_status) & ((7<<16)|(1<<21)) || h != old_h)
{
old_status = gpu.status.reg;
- old_h = gpu.screen.h;
- screen_buf = cbs->pl_vout_set_mode(gpu.screen.hres, gpu.screen.h,
+ old_h = h;
+
+ cbs->pl_vout_set_mode(w_out, h_out, w, h,
(gpu.status.rgb24 && !cbs->only_16bpp) ? 24 : 16);
}
}
-static void blit(void)
+void vout_update(void)
{
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;
+ int vram_h = 512;
- fb_offs = y * 1024 + x;
- dest = (uint8_t *)screen_buf;
+ if (w == 0 || h == 0)
+ return;
- // only do centering, at least for now
- doffs = (stride - w) / 2 & ~1;
+ check_mode_change(0);
+ if (gpu.state.enhancement_active)
+ vram = gpu.get_enhancement_bufer(&x, &y, &w, &h, &vram_h);
- if (gpu.status.rgb24)
- {
- if (cbs->only_16bpp) {
- 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);
- }
- }
- else {
- 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;
- bgr555_to_rgb565(dest, vram + fb_offs, w * 2);
+ if (y + h > vram_h) {
+ if (y + h - vram_h > h / 2) {
+ // wrap
+ h -= vram_h - y;
+ y = 0;
}
+ else
+ // clip
+ h = vram_h - y;
}
- screen_buf = cbs->pl_vout_flip();
+ vram += y * 1024 + x;
+
+ cbs->pl_vout_flip(vram, 1024, gpu.status.rgb24, w, h);
}
-void vout_update(void)
+void vout_blank(void)
{
- check_mode_change();
- if (cbs->pl_vout_raw_flip)
- cbs->pl_vout_raw_flip(gpu.screen.x, gpu.screen.y);
- else
- blit();
+ int w = gpu.screen.hres;
+ int h = gpu.screen.h;
+ if (gpu.state.enhancement_active) {
+ w *= 2;
+ h *= 2;
+ }
+ cbs->pl_vout_flip(NULL, 1024, gpu.status.rgb24, w, h);
}
long GPUopen(void **unused)
gpu.frameskip.frame_ready = 1;
cbs->pl_vout_open();
- screen_buf = cbs->pl_vout_flip();
+ check_mode_change(1);
return 0;
}