mirror/psxrecomp
1
0
Fork 0
mirror of https://github.com/RetroPortingToolKit/psxrecomp synced 2026-10-26 02:11:36 -04:00
Code Issues Packages Projects Releases Wiki Activity

Render passes in netplay dual raster; verify mode checks the whole CPU VRAM

Browse Source 
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Matthew Stanley
2026-10-02 17:02:11 -07:00
parent 701f54eb0b
commit 2a46b01374
1 changed files with 23 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
runtime/src/gpu_gl_renderer.c
+23 -4
View File
@@ -5859,6 +5859,18 @@ static int s_pass_verify = -1;
static uint8_t *s_pv_hr = NULL, *s_pv_raw = NULL;
static size_t s_pv_hr_cap = 0, s_pv_raw_cap = 0;
static int s_pv_ok = 1;
static uint64_t s_pv_cpu_hash = 0;
/* The whole CPU VRAM: the guest-visible VRAM (GPUREAD, savestates, netplay
* digests and, in dual raster, the authoritative surface). */
static uint64_t pass_cpu_vram_hash(void) {
uint64_t h = 1469598103934665603ULL;
if (!s_vram) return 0;
const uint64_t *w = (const uint64_t *)(const void *)s_vram;
for (size_t i = 0; i < (size_t)VRAM_W * VRAM_H / 4u; i++)
h = (h ^ w[i]) * 1099511628211ULL;
return h;
}
uint64_t gl_renderer_perf_ticks(void) { return SDL_GetPerformanceCounter(); }
uint64_t gl_renderer_perf_frequency(void) { return SDL_GetPerformanceFrequency(); }
@@ -5886,8 +5898,11 @@ uint32_t gl_renderer_pass_unavailable(void) {
if (!s_ctx || !s_raster_ok || !s_interp_enabled || s_interp_suspended ||
s_interp_source != 1 || !(s_interp_source_hz > 0.0))
return PSX_MOD_RENDER_PASS_NO_PRESENTER;
/* Dual raster (netplay CPU-authoritative VRAM) or a debug refusal. */
if (s_cpu_auth_dual || s_pass_force_refuse)
/* Dual raster (netplay) hosts passes too: its authoritative surface is
* the CPU VRAM the pass backs up and restores (rect rows, journaled
* out-of-rect writes), and the FBO it presents is the one passes capture.
* PSX_RENDER_PASS_VERIFY=1 checks the whole CPU VRAM after each pass. */
if (s_pass_force_refuse)
return PSX_MOD_RENDER_PASS_BACKEND;
/* Windowed high-resolution mode: the presented surfaces are the window
* tiles at s_out_scale, which a pass (backing up s_hr_fbo at
@@ -6287,7 +6302,10 @@ backed_up:
const char *e = getenv("PSX_RENDER_PASS_VERIFY");
s_pass_verify = (e && e[0] && e[0] != '0') ? 1 : 0;
}
if (s_pass_verify) pass_verify_read(&s_pv_hr, &s_pv_hr_cap, &s_pv_raw, &s_pv_raw_cap);
if (s_pass_verify) {
pass_verify_read(&s_pv_hr, &s_pv_hr_cap, &s_pv_raw, &s_pv_raw_cap);
s_pv_cpu_hash = pass_cpu_vram_hash();
}
s_pj_cpu.n = 0;
s_pass_active = 1;
return 1;
@@ -6354,7 +6372,8 @@ void gl_renderer_pass_end(uint32_t alpha_q16, int keep) {
pass_verify_read(&after_hr, &after_hr_cap, &after_raw, &after_raw_cap);
s_pv_ok = s_pv_hr && after_hr && s_pv_raw && after_raw &&
memcmp(s_pv_hr, after_hr, hn) == 0 &&
memcmp(s_pv_raw, after_raw, rn) == 0;
memcmp(s_pv_raw, after_raw, rn) == 0 &&
pass_cpu_vram_hash() == s_pv_cpu_hash;
}
}