mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-25 18:05:12 -04:00
Shokunin
bc2106f7c7
Once the frame-rate stack's render passes land, a pass backs up and restores only s_hr_fbo, at s_hr_scale. In the 8K window mode the presented surfaces are the tiles at s_out_scale, which a pass would not restore, and the queued native-wide replay has no pass clamp, so the backend must refuse passes there (gl_renderer_pass_unavailable: s_hiw returns PSX_MOD_RENDER_PASS_BACKEND). Nothing enforced that but prose. test_gl_internal_scale_guards: where the renderer defines gl_renderer_pass_unavailable, its s_hiw refusal must return PSX_MOD_RENDER_PASS_BACKEND and pass_begin and pass_plan must go through gl_renderer_pass_ready; skipped before render passes exist. The GL fixture gains a passes mode, built only when the renderer has render passes: with the flip-aware blend ready, the full-VRAM surface at 9x offers passes and the window mode at 9x and 18x refuses them and pass_begin opens nothing. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
361 lines
20 KiB
Python
361 lines
20 KiB
Python
"""Source guards for the OpenGL internal-resolution scale (source-only).
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The real-GL behaviour is covered by run_gl_scale_invariance.py (needs a GPU and
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SDL3). These guards pin the structural promises that keep native (1x) output
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byte-identical and keep a large scale from costing the GL backend:
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- no local 4x cap in the GL backend; the ceiling lives in gpu_render.h;
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- init queries the driver limits and clamps, and only a 1x allocation
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failure can drop the backend to software;
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- line quads, the area resolve and the half-texel inset change are all
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gated on a scale above 1;
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- the dual-raster re-arm and the offline clamp no longer cap GL at the
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software mirror's 4x.
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Also unit-tests the invariance runner's result parsing.
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"""
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import pathlib
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import re
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import sys
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import unittest
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ROOT = pathlib.Path(__file__).resolve().parents[2]
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GL = (ROOT / "runtime/src/gpu_gl_renderer.c").read_text(encoding="utf-8")
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MAIN = (ROOT / "runtime/src/main.cpp").read_text(encoding="utf-8")
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RENDER_H = (ROOT / "runtime/include/gpu_render.h").read_text(encoding="utf-8")
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sys.path.insert(0, str(pathlib.Path(__file__).resolve().parent))
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from run_gl_scale_invariance import digests_agree, parse_run # noqa: E402
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def body(src, signature):
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# The definition, not a prototype: the first occurrence whose next '{'
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# comes before any ';'.
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start = src.index(signature)
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while True:
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brace, semi = src.find("{", start), src.find(";", start)
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if brace != -1 and (semi == -1 or brace < semi):
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break
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start = src.index(signature, start + 1)
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depth = 0
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for i in range(brace, len(src)):
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if src[i] == "{":
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depth += 1
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elif src[i] == "}":
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depth -= 1
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if depth == 0:
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return src[brace:i + 1]
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raise AssertionError("unbalanced " + signature)
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class GlScaleGuards(unittest.TestCase):
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def test_ceiling_is_shared(self):
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self.assertIsNone(re.search(r"#define\s+GL_MAX_INTERNAL_SCALE\s+4\b", GL))
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self.assertRegex(RENDER_H, r"#define\s+GL_MAX_INTERNAL_SCALE\s+32\b")
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def test_init_clamps_to_driver_limits(self):
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init = body(GL, "static int init_gpu_raster(void)")
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for token in ("GL_MAX_TEXTURE_SIZE", "PSXGL_MAX_RENDERBUFFER_SIZE",
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"GL_MAX_VIEWPORT_DIMS", "psx_gl_clamp_full_vram_scale"):
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self.assertIn(token, init)
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# Retry lower inside GL; only a 1x failure returns 0 (software fallback).
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self.assertRegex(init, r"while \(!alloc_hr_targets\(s_hr_scale\)\) \{\s*if \(s_hr_scale <= 1\) return 0;")
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def test_s1_paths_unchanged(self):
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geo = body(GL, "static void gpu_geometry(")
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self.assertIn("if (is_line && s_hr_scale > 1) {", geo)
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self.assertIn("if (draw_mode == GL_LINES) glLineWidth((float)s_hr_scale);", geo)
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quad = body(GL, "static void present_target_quad(GLuint tex, int tex_w, int tex_h,\n"
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" int x, int y, int w, int h, int linear,\n"
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" int lx, int ly, int lw, int lh, int v_flip,\n"
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" int apply_gamma, int src_scale) {")
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self.assertIn("if (src_scale > 1 && lw > 0", quad)
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self.assertIn("float in = src_scale > 1 ? 0.5f / (float)src_scale : 0.5f;", quad)
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stencil = body(GL, "static void rebuild_mask_stencils(void)")
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self.assertIn("if (s_out_scale <= 1) {", stencil)
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def test_lines_batch_above_1x(self):
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# Above 1x a line quad joins the flat batch (one draw, one wide mirror
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# per batch instead of two surface switches per line), windowed mode
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# included; 1x and backdrop-stretched lines keep the immediate path.
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# The invariance runner's line bands and lines runs prove the pixels
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# are unchanged.
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geo = body(GL, "static void gpu_geometry(")
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self.assertIn("if (mode == GL_LINES && n == 2 && s_out_scale > 1 && "
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"!bd_prim_gate(xs, n, 0)) {", geo)
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batched = geo[geo.index("line_to_quad(lv, quad);"):]
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batched = batched[:batched.index("return;")]
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self.assertIn("s_fb_n += 6;", batched)
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self.assertNotIn("glDrawArrays", batched)
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# Windowed: the 1x hr surface keeps the line's GL_LINES vertices.
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self.assertIn("if (s_hiw) {", batched)
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self.assertIn("s_fbl_at[s_fbl_n] = s_fb_n;", batched)
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def test_windowed_lines_two_vertex_sets(self):
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# A batch with windowed lines draws on the hr surface (1x in windowed
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# mode) through flat_batch_draw_hr_lines, lines as GL_LINES from the
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# copy uploaded after the batch; any other batch keeps its one draw.
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# The window and the wide surface draw only the batch's nverts
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# vertices (triangles and line quads). (A GL_LINES batch at 1x, where
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# one exists, draws with its own mode in both places.)
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flush = body(GL, "static void flush_flat_batch(void)")
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self.assertIn("s_fbl_n = 0;", flush)
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self.assertIn("memcpy(&s_fb[nverts * 6], s_fbl,", flush)
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self.assertIn("(nverts + 2 * nl) * 6 * sizeof(float)", flush)
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self.assertRegex(flush, r"if \(nl\) flat_batch_draw_hr_lines\(nverts, nl\);\n"
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r"\s*else glDrawArrays\((GL_TRIANGLES|fmode), 0, nverts\);")
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self.assertIn("hiw_enqueue_geo(s_fb, nverts, semi, mask, mirror, 0)", flush)
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wide = flush[flush.index("wide_target_begin("):]
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self.assertRegex(wide, r"glDrawArrays\((GL_TRIANGLES|fmode), 0, nverts\);")
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hr = body(GL, "static void flat_batch_draw_hr_lines(int nverts, int nl)")
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self.assertIn("glDrawArrays(GL_LINES, nverts + 2 * i, 2 * (j - i));", hr)
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# Room for the copy: every line takes six batch vertices.
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self.assertIn("#define FLATBATCH_MAXL (FLATBATCH_MAXV / 6)", GL)
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self.assertIn("static float s_fb[(FLATBATCH_MAXV + 2 * FLATBATCH_MAXL) * 6];", GL)
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def test_main_does_not_cap_gl_at_software_limit(self):
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self.assertNotIn("if (want > SW_MAX_INTERNAL_SCALE) want = SW_MAX_INTERNAL_SCALE;", MAIN)
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self.assertIn("(g_video_renderer == 1) ? GL_MAX_INTERNAL_SCALE", MAIN)
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class HiresWindowGuards(unittest.TestCase):
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"""Windowed high-resolution mode (true 8K past a 16384 texture limit):
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engaged only beyond the full-VRAM clamp (or forced for tests), and every
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mirror is a no-op unless it is."""
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def test_engaged_only_past_full_vram(self):
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init = body(GL, "static int init_gpu_raster(void)")
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self.assertIn("if (allow && want > 1 && (force || want > s_out_scale)) {", init)
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self.assertIn("s_hr_scale = 1;", init)
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def test_mirrors_gated(self):
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for fn in ("static void hiw_mirror_uploads(", "static void hiw_mirror_copy(",
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"static void hiw_clear_rect("):
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self.assertIn("if (!hiw_on()", body(GL, fn))
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# an immediate write into the window lands after every queued draw
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self.assertIn("hiw_flush_queue();", body(GL, fn))
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for site in ("flush_tex_batch(void)", "flush_flat_batch(void)"):
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self.assertIn("if (hiw_on() && hiw_enqueue_", body(GL, "static void " + site))
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def test_wide_mirror_queued_in_windowed_mode(self):
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# Windowed mode: a draw's native-wide mirror rides in its window queue
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# entry and is replayed in the queue's flush (one pass per wide
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# surface), not as a surface switch per batch. The immediate mirror
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# runs only when the entry did not take it.
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for site, call in (("static void flush_tex_batch(void)",
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"if (hiw_on() && hiw_enqueue_tex(nverts, semi, mirror, s_tb_gate)) mirror = 0;"),
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("static void flush_flat_batch(void)",
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"if (hiw_on() && hiw_enqueue_geo(s_fb, nverts, semi, mask, mirror, 0)) mirror = 0;"),
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("static void gpu_geometry(", "mirror = 0;")):
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fn = body(GL, site)
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self.assertIn(call, fn, site)
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self.assertLess(fn.index(call), fn.index("if (mirror) {"), site)
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self.assertIn("wide_target_begin(", fn[fn.index("if (mirror) {"):], site)
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ok = body(GL, "static int hiw_wide_queue_ok(int mirror)")
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self.assertIn("return mirror && g_wide_cur && s_ws_ablate == 0;", ok)
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for fn in ("static int hiw_enqueue_tex(", "static int hiw_enqueue_geo("):
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b = body(GL, fn)
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self.assertIn("if (!wq && !hiw_area_touches()) return 0;", b)
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self.assertIn("if (wq) hiw_wide_set(c, gate);", b)
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flush = body(GL, "static void hiw_flush_queue(void)")
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self.assertIn("hiw_replay_wide();", flush)
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self.assertLess(flush.index("hiw_replay_wide();"), flush.index("hr_end();"))
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replay = body(GL, "static void hiw_replay_wide(void)")
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for need in ("if (!c->wfbo) continue;", "p_glBindFramebuffer(PSXGL_FRAMEBUFFER, c->wfbo);",
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"glViewport(0, 0, g_wide_w * S, VRAM_H * S);",
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"glScissor(0, sy * S, g_wide_w * S, sh * S);",
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"p_glUniform1f(s_tex_uXoff, (float)c->wdx);",
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"p_glUniform1f(s_geo_uXoff, (float)c->wdx);",
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"tex_draw_passes_ex(c->vcount, c->semi, c->mask, c->check, 0);",
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"mask_stencil_ex(c->mask, c->check);"):
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self.assertIn(need, replay)
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# Every other write to a wide surface, and every read of one, lands
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# after the queued mirrors.
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overlay = body(GL, "static void gpu_flat_rect(")
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self.assertLess(overlay.index("hiw_flush_queue();"),
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overlay.index("wide_flat_rect_direct(0, y, g_wide_w, h, c, semi);"))
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for fn in ("static void glb_wide_configure(",
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"static void glb_wide_clear(", "static void glb_wide_clear_margins(",
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"static int glb_render_wide_display(", "static int glb_wide_dump_full(",
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"int gl_renderer_present_wide_fbo(", "static void rebuild_mask_stencils(void)"):
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self.assertIn("hiw_flush_queue();", body(GL, fn), fn)
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def test_queue_syncs_before_the_raw_mirror_changes(self):
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# Queued window draws sample the raw mirror; it must not change under them.
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self.assertIn("hiw_flush_queue();", body(GL, "static void pack_flush(void)"))
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upload = body(GL, "static void flush_cpu_upload(void)")
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self.assertLess(upload.index("hiw_flush_queue();"), upload.index("glTexSubImage2D"))
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self.assertIn("hiw_flush_queue();", body(GL, "static void depth24_clear_skipped_fb(void)"))
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self.assertIn("hiw_flush_queue();", body(GL, "static void rebuild_mask_stencils(void)"))
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self.assertIn("hiw_flush_queue();", body(GL, "static const HiwTile *hiw_ensure(int x0, int x1)"))
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present = body(GL, "void gl_renderer_present_vram(int disp_x, int disp_y, int w, int h, int linear,")
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self.assertIn("if (s_hiw) {", present)
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self.assertIn("int src_tw = VRAM_W, src_x = disp_x, src_scale = s_out_scale;", present)
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def test_every_tile_is_written(self):
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# Side-by-side buffers too wide for one surface become tiles; every
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# mirror writes each tile it touches, and a display the union cannot
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# hold gets a tile of its own instead of presenting at 1x.
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for fn in ("static void hiw_flush_queue(void)", "static void hiw_clear_rect(",
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"static void hiw_mirror_uploads(", "static void hiw_mirror_copy_chunk(",
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"static void rebuild_mask_stencils(void)"):
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self.assertIn("for (int t = 0; ", body(GL, fn), fn)
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ensure = body(GL, "static const HiwTile *hiw_ensure(int x0, int x1)")
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self.assertIn("T = hiw_alloc_tile(u0, u1, all);", ensure)
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self.assertIn("T = hiw_alloc_tile(a0, a1, 0);", ensure)
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def test_window_copy_staging_fits_the_limit(self):
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# The window's S-scaled copy source has its own scratch, staged in
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# column chunks that fit the GPU limit; the shared scratch never grows
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# past the hr surface for it.
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copy = body(GL, "static void gpu_copy_rect(int sx,int sy,int dx,int dy,int w,int h)")
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self.assertNotIn("s_out_scale", copy)
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self.assertIn("if (!scratch_ensure(w * S, h * S)) return;", copy)
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self.assertIn("int cols = s_gl_max_dim > 0 ? s_gl_max_dim / S : hi - lo;",
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body(GL, "static void hiw_mirror_copy("))
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def test_staging_size_committed_after_allocation(self):
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grow = body(GL, "static int stage_tex_grow(")
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self.assertIn("nw > s_gl_max_dim || nh > s_gl_max_dim", grow)
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self.assertLess(grow.index("glTexImage2D"), grow.index("*cur_w = nw; *cur_h = nh;"))
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self.assertLess(grow.index("glGetError() != GL_NO_ERROR) {"),
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grow.index("*cur_w = nw; *cur_h = nh;"))
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self.assertIn("stage_tex_grow(s_scratch_tex, &s_scratch_w, &s_scratch_h",
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body(GL, "static int scratch_ensure(int w, int h)"))
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def test_canonical_shaders_untouched(self):
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# The window has its own blit program; BLIT_VS keeps the fixed 1024x512
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# projection the canonical path always used.
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self.assertIn('" gl_Position = vec4((a_pos.x+u_shift)/512.0 - 1.0, (a_pos.y+u_shift)/256.0 - 1.0, 0.0, 1.0); }\\n";', GL)
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def functions(src):
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"""(name, body) for every top-level function definition."""
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out = []
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for m in re.finditer(r"\n((?:static\s+)?(?:inline\s+)?[A-Za-z_][\w \*]*?\b([A-Za-z_]\w*)"
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r"\s*\([^;{]*\))\s*\{", src):
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start, depth = m.end() - 1, 0
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for i in range(start, len(src)):
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if src[i] == "{":
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depth += 1
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elif src[i] == "}":
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depth -= 1
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if depth == 0:
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out.append((m.group(2), src[start:i + 1]))
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break
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return out
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def strip_comments(src):
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src = re.sub(r"/\*.*?\*/", "", src, flags=re.S)
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return re.sub(r"//[^\n]*", "", src)
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class ScaleContractGuards(unittest.TestCase):
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"""The GL backend has two scales: s_hr_scale (s_hr_fbo, the authoritative
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VRAM surface) and s_out_scale (what is presented: the high-resolution
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window, the wide surfaces, captures). They differ only in windowed
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high-resolution mode, so a mix-up is invisible at every other scale."""
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def test_single_scale_name_is_poisoned(self):
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# Code written against the old single s_scale must not build.
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self.assertRegex(GL, r"#if defined\(__GNUC__\) \|\| defined\(__clang__\)\s*"
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r"#pragma GCC poison s_scale\s*#endif")
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code = strip_comments(GL).replace("#pragma GCC poison s_scale", "")
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self.assertIsNone(re.search(r"\bs_scale\b", code))
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def test_hr_surface_users_pick_the_right_scale(self):
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# A function that binds s_hr_fbo and uses the presented scale must also
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# handle the window (s_hiw / hiw_on): otherwise it reads or writes hr
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# at the wrong scale in windowed mode.
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code = strip_comments(GL)
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for name, fn in functions(code):
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if not re.search(r"FRAMEBUFFER,\s*s_hr_fbo\b", fn):
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continue
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if "s_out_scale" in fn:
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self.assertTrue("s_hiw" in fn or "hiw_on()" in fn,
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name + " binds s_hr_fbo at s_out_scale without handling the window")
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class RenderPassGuards(unittest.TestCase):
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"""Render passes (the frame-rate stack) back up and restore only
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s_hr_fbo, at s_hr_scale. In the window mode the presented surfaces are the
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tiles at s_out_scale, which a pass would not restore, and the queued wide
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mirror replay has no pass clamp: the backend must refuse passes there.
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Skipped where the renderer has no render passes; the GL fixture's passes
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runs check the same refusal on a real context."""
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def test_window_mode_refuses_passes(self):
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if "uint32_t gl_renderer_pass_unavailable(void)" not in GL:
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self.skipTest("no render passes in this tree")
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refuse = body(GL, "uint32_t gl_renderer_pass_unavailable(void)")
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self.assertRegex(strip_comments(refuse),
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r"if \([^;{}]*\bs_hiw\b[^;{}]*\)\s*return PSX_MOD_RENDER_PASS_BACKEND;")
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# Every way in goes through that refusal.
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for sig in ("int gl_renderer_pass_begin(", "uint32_t gl_renderer_pass_plan("):
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if sig in GL:
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self.assertIn("gl_renderer_pass_ready()", body(GL, sig), sig)
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self.assertIn("gl_renderer_pass_unavailable() == PSX_MOD_RENDER_PASS_READY",
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body(GL, "int gl_renderer_pass_ready(void)"))
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class InternalResolutionGuards(unittest.TestCase):
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def test_hidpi_window_only_when_opted_in(self):
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self.assertIn("win_flags |= PSX_SDL_WINDOW_HIGH_DENSITY;", MAIN)
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self.assertRegex(MAIN, r"g_video_hidpi_window = g_video_scale_applies &&\s*"
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r"\(g_video_requested_scale > 1 \|\|\s*"
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r"effective_internal_resolution\(\) == PSX_IR_DISPLAY\);")
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self.assertRegex(MAIN, r"if \(g_video_hidpi_window\)\s*win_flags \|= PSX_SDL_WINDOW_HIGH_DENSITY;")
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def test_vocabulary_is_optional_abi(self):
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# Builds against an older recomp-ui must still compile: every use of
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# the new launcher fields sits behind the capability macro.
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for field in ("gi->internal_resolution_labels", "ls.internal_resolution",
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"= internal_resolution_for_launcher();"):
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for m in re.finditer(re.escape(field), MAIN):
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before = MAIN[:m.start()]
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opened = before.count("#if defined(RECOMP_LAUNCHER_HAS_INTERNAL_RESOLUTION)")
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closed = len(re.findall(r"#endif", before[before.rfind(
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"#if defined(RECOMP_LAUNCHER_HAS_INTERNAL_RESOLUTION)"):]))
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self.assertGreater(opened, 0, field)
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self.assertEqual(closed, 0, field + " outside its #if block")
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def test_unset_preset_leaves_supersampling(self):
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self.assertIn("if (preset == PSX_IR_UNSET) return;",
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body(MAIN, "static void apply_internal_resolution(int display_px_h)"))
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|
|
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def test_launcher_trips_use_the_round_trip_helpers(self):
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# Both launcher exits (first boot, netplay soft-return) seed and adopt
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# through internal_resolution.h, whose behaviour with and without the
|
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# Internal resolution row is unit-tested (internal_resolution_test).
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# A bare factor copy next to a sticky preset let the preset override
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# a pick in an older launcher's Supersampling row.
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self.assertEqual(MAIN.count("psx_ir_launcher_seed_supersampling("), 2)
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self.assertEqual(MAIN.count("psx_ir_adopt_launcher("), 2)
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self.assertEqual(MAIN.count("kLauncherHasInternalResolution, ir_preset_seeded, ir_ss_seeded,"), 2)
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self.assertNotRegex(MAIN, r"g_video_scale\s*=\s*(seed|ls)\.supersampling;")
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self.assertIn("g_video_internal_res = ir.preset;", MAIN)
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|
|
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def test_env_override_is_never_persisted(self):
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# PSX_INTERNAL_RESOLUTION wins for the run only: the launcher shows and
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|
# settings.toml saves the configured preset.
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|
self.assertIn("if (psx_ir_parse(e, &v)) g_video_internal_res_env = v;", MAIN)
|
|
self.assertNotRegex(MAIN, r"g_video_internal_res\s*=\s*v;")
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|
self.assertIn("g_video_internal_res_env != PSX_IR_UNSET ? g_video_internal_res_env",
|
|
body(MAIN, "static int effective_internal_resolution(void)"))
|
|
|
|
|
|
class RunnerParsing(unittest.TestCase):
|
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def test_parse(self):
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|
self.assertEqual(parse_run("driver=x\ndigest=0123456789abcdef\nchecks=7 failures=0\n"),
|
|
(7, 0, "0123456789abcdef"))
|
|
self.assertIsNone(parse_run("garbage"))
|
|
|
|
def test_digests(self):
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self.assertTrue(digests_agree({1: "a", 3: "a"}))
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|
self.assertFalse(digests_agree({1: "a", 3: "b"}))
|
|
self.assertFalse(digests_agree({1: "a", 3: None}))
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|
self.assertFalse(digests_agree({}))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|