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95 lines
4.0 KiB
C
95 lines
4.0 KiB
C
#ifndef ARMSX_HOST_STATS_H
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#define ARMSX_HOST_STATS_H
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/*
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Layout of the performance snapshot psxe_host_stats() hands an embedded host.
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Written by ArmsxApp::publishFrameStats() in frontend/main.cpp, read by
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Java_kr_co_iefriends_pcsx2_NativeApp_getStatistics() in frontend/android_jni.cpp and
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rendered by com.armsx2.ui.GameOsd. One flat double[] rather than a struct because it has
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to cross JNI: the Kotlin side keeps a single array alive and refills it, so a 2 Hz poll
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allocates nothing.
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⚠ APPEND ONLY. Kotlin indexes this by ordinal (GameOsd.Stat), so inserting in the middle
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silently relabels every row after it. New stats go before PSXE_HOST_STAT_COUNT.
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Every value is a real measurement: the guest-side entries are exact event counts taken at
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the site that does the work (psx/perf.h), the host-side ones are wall-clock times around
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whole frame phases. Nothing here is modelled or extrapolated. Values are per FRAME —
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averaged over the publishing window, not instantaneous — except the *_WORST entries.
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*/
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enum {
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/* Host wall clock, milliseconds. IDLE is what was left over after emulating and
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presenting, i.e. the headroom the frame limiter slept away; a device that cannot keep
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up reports 0 here and the sum of the other two exceeds the frame budget. */
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PSXE_HOST_STAT_FRAME_MS = 0,
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PSXE_HOST_STAT_EMU_MS,
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PSXE_HOST_STAT_PRESENT_MS,
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PSXE_HOST_STAT_IDLE_MS,
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PSXE_HOST_STAT_WORST_FRAME_MS,
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/* R3000A. Instructions is the interpreter's step count for the frame; cycles is the
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guest clocks those instructions charged, so CYCLES/INSTRUCTIONS is a real CPI. */
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PSXE_HOST_STAT_CPU_INSTRUCTIONS,
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PSXE_HOST_STAT_CPU_CYCLES,
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/* Geometry coprocessor operations executed. */
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PSXE_HOST_STAT_GTE_OPS,
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/* Software rasteriser. PIXELS is the exact inner-loop iteration count of every
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primitive drawn — for this renderer that IS its cost. VRAM_WORDS counts halfwords
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moved by the upload/download/copy/fill commands. */
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PSXE_HOST_STAT_GPU_TRIANGLES,
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PSXE_HOST_STAT_GPU_RECTS,
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PSXE_HOST_STAT_GPU_LINES,
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PSXE_HOST_STAT_GPU_PIXELS,
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PSXE_HOST_STAT_GPU_VRAM_WORDS,
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/* Mean number of SPU voices that were actually sounding (0..24). */
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PSXE_HOST_STAT_SPU_VOICES,
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/* MDEC: macroblocks, and the 8x8 blocks run through the IDCT inside them. Both sit at
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0 outside an FMV. */
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PSXE_HOST_STAT_MDEC_MACROBLOCKS,
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PSXE_HOST_STAT_MDEC_BLOCKS,
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/* Sectors pulled off the disc image. */
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PSXE_HOST_STAT_CDROM_SECTORS,
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/* DMA words moved, in total and split by the channels that carry real traffic. */
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PSXE_HOST_STAT_DMA_WORDS,
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PSXE_HOST_STAT_DMA_GPU_WORDS,
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PSXE_HOST_STAT_DMA_SPU_WORDS,
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PSXE_HOST_STAT_DMA_MDEC_WORDS,
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PSXE_HOST_STAT_DMA_CDROM_WORDS,
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PSXE_HOST_STAT_DMA_OTC_WORDS,
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/* Emulated output resolution, in guest pixels. */
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PSXE_HOST_STAT_WIDTH,
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PSXE_HOST_STAT_HEIGHT,
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/* HOST (device) resource usage — the phone, not the emulated machine. Appended, per the
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append-only rule above. A negative value means UNAVAILABLE and must render as "n/a":
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GPU busy in particular comes from vendor sysfs nodes that are root-only on most retail
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Android, so unavailable is the normal outcome there, not an error.
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CPU is a percentage of ONE core (top's convention for a process), so it can exceed 100;
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HOST_CPU_CORES gives it a ceiling to be read against. */
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PSXE_HOST_STAT_HOST_CPU_PERCENT,
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PSXE_HOST_STAT_HOST_CPU_CORES,
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PSXE_HOST_STAT_HOST_RAM_MB,
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PSXE_HOST_STAT_HOST_RAM_AVAILABLE_MB,
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PSXE_HOST_STAT_HOST_GPU_PERCENT,
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/* Internal-resolution scale the rasterizer is actually running at (1 = native).
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WIDTH/HEIGHT above are the EMULATED display size and do not change when upscaling — the
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PlayStation still thinks it is drawing 512x240 — so without this the OSD reported native
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resolution at every scale and there was no way to confirm the setting had taken. */
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PSXE_HOST_STAT_INTERNAL_SCALE,
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PSXE_HOST_STAT_COUNT
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};
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#endif
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