mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 18:25:35 -04:00
Matthew Stanley
0ac63b655c
Vulkan backend alongside software + OpenGL: geometry/textured-prim pipelines, GPU-authoritative VRAM image, deferred-submit + drain-at-present perf model, GPU-direct present (vk_renderer_present_vram), and a full-VRAM-pack readback path (ensure_cpu rect_adds the whole VRAM rect before pack_flush so screenshots/guest VRAM reads reflect live content, not just the incremental pack-dirty rect — readback-only, no per-frame cost). Runtime plumbing: --debug-port / --renderer / --window-title CLI overrides (multi-instance fleet), latency_ring, SPIR-V shaders + embed_spirv.py, config_loader renderer selection, debug_server screenshot wiring. All on feat/vulkan-renderer; snapshot in backup/vulkan-wip-20260617. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
25 lines
1.0 KiB
GLSL
25 lines
1.0 KiB
GLSL
#version 450
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/* Quad blit fragment: sample an RGBA8 source (alpha = bit15), split by STP for
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* the stencil-mirror write, OR set-mask into the output alpha. Exact integer
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* source fetch (no normalized-uv edge precision). u_src_div maps fragcoord to
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* src texel (S for native-res sources, 1 for hr-res); u_src_off is added after
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* the divide in src texel units. Ported from the GL backend's BLIT_FS. */
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layout(set = 0, binding = 0) uniform sampler2D u_src;
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layout(push_constant) uniform PC {
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float u_shift;
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int u_stp_pass; /* 0=all, 1=bit15=0 only, 2=bit15=1 only */
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int u_maskset;
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int u_src_div;
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ivec2 u_src_off;
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ivec4 u_rect; /* unused in frag; keeps the block layout in sync */
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} pc;
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layout(location = 0) out vec4 frag;
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void main() {
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ivec2 p = ivec2(gl_FragCoord.xy);
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vec4 c = texelFetch(u_src, p / pc.u_src_div + pc.u_src_off, 0);
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bool stp = c.a >= 0.5;
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if (pc.u_stp_pass == 1 && stp) discard;
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if (pc.u_stp_pass == 2 && !stp) discard;
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frag = vec4(c.rgb, (stp || pc.u_maskset != 0) ? 1.0 : 0.0);
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}
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