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path: root/plugins/gpu_neon/psx_gpu_if.c
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Diffstat (limited to 'plugins/gpu_neon/psx_gpu_if.c')
-rw-r--r--plugins/gpu_neon/psx_gpu_if.c56
1 files changed, 53 insertions, 3 deletions
diff --git a/plugins/gpu_neon/psx_gpu_if.c b/plugins/gpu_neon/psx_gpu_if.c
index 250aa8c..ca76fe2 100644
--- a/plugins/gpu_neon/psx_gpu_if.c
+++ b/plugins/gpu_neon/psx_gpu_if.c
@@ -9,6 +9,7 @@
*/
#include <stdio.h>
+#include <sys/mman.h>
extern const unsigned char cmd_lengths[256];
#define command_lengths cmd_lengths
@@ -39,6 +40,8 @@ int do_cmd_list(uint32_t *list, int count, int *last_cmd)
return ret;
}
+#define ENHANCEMENT_BUF_SIZE (1024 * 1024 * 2 * 4 + 4096)
+
int renderer_init(void)
{
initialize_psx_gpu(&egpu, gpu.vram);
@@ -48,9 +51,12 @@ int renderer_init(void)
// currently we use 4x 1024*1024 buffers instead of single 2048*1024
// to be able to reuse 1024-width code better (triangle setup,
// dithering phase, lines).
- gpu.enhancement_bufer = malloc(1024 * 1024 * 2 * 4);
- if (gpu.enhancement_bufer == NULL)
+ gpu.enhancement_bufer = mmap(NULL, ENHANCEMENT_BUF_SIZE,
+ PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ if (gpu.enhancement_bufer == MAP_FAILED) {
printf("OOM for enhancement buffer\n");
+ gpu.enhancement_bufer = NULL;
+ }
}
egpu.enhancement_buf_ptr = gpu.enhancement_bufer;
@@ -59,11 +65,44 @@ int renderer_init(void)
void renderer_finish(void)
{
- free(gpu.enhancement_bufer);
+ if (gpu.enhancement_bufer != NULL)
+ munmap(gpu.enhancement_bufer, ENHANCEMENT_BUF_SIZE);
gpu.enhancement_bufer = NULL;
egpu.enhancement_buf_ptr = NULL;
}
+static __attribute__((noinline)) void
+sync_enhancement_buffers(int x, int y, int w, int h)
+{
+ int xt = egpu.enhancement_x_threshold;
+ u16 *src, *dst;
+ int wb, i;
+
+ w += x & 7;
+ x &= ~7;
+ w = (w + 7) & ~7;
+ if (y + h > 512)
+ h = 512 - y;
+
+ for (i = 0; i < 4 && w > 0; i++) {
+ if (x < 512) {
+ wb = w;
+ if (x + w > 512)
+ wb = 512 - x;
+ src = gpu.vram + xt * i + y * 1024 + x;
+ dst = egpu.enhancement_buf_ptr +
+ (1024*1024 + xt * 2) * i + (y * 1024 + x) * 2;
+ scale2x_tiles8(dst, src, wb / 8, h);
+ }
+
+ x -= xt;
+ if (x < 0) {
+ w += x;
+ x = 0;
+ }
+ }
+}
+
void renderer_sync_ecmds(uint32_t *ecmds)
{
gpu_parse(&egpu, ecmds + 1, 6 * 4, NULL);
@@ -72,6 +111,8 @@ void renderer_sync_ecmds(uint32_t *ecmds)
void renderer_update_caches(int x, int y, int w, int h)
{
update_texture_cache_region(&egpu, x, y, x + w - 1, y + h - 1);
+ if (gpu.state.enhancement_active && !gpu.status.rgb24)
+ sync_enhancement_buffers(x, y, w, h);
}
void renderer_flush_queues(void)
@@ -90,6 +131,7 @@ void renderer_set_interlace(int enable, int is_odd)
void renderer_notify_res_change(void)
{
+ // note: must keep it multiple of 8
egpu.enhancement_x_threshold = gpu.screen.hres;
}
@@ -97,5 +139,13 @@ void renderer_notify_res_change(void)
void renderer_set_config(const struct rearmed_cbs *cbs)
{
+ static int enhancement_was_on;
+
disable_main_render = cbs->gpu_neon.enhancement_no_main;
+ if (egpu.enhancement_buf_ptr != NULL && cbs->gpu_neon.enhancement_enable
+ && !enhancement_was_on)
+ {
+ sync_enhancement_buffers(0, 0, 1024, 512);
+ }
+ enhancement_was_on = cbs->gpu_neon.enhancement_enable;
}