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obs/gs/mipmapper: Enable support for sRGB mip-mapping

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This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2021-11-27 01:34:57 +01:00
parent 9f035deaaa
commit 9859b44b1c
1 changed files with 20 additions and 15 deletions
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35
source/obs/gs/gs-mipmapper.cpp
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@ -284,6 +284,21 @@ void streamfx::obs::gs::mipmapper::rebuild(std::shared_ptr<streamfx::obs::gs::te
}
}
// Set up rendering state.
gs_blend_state_push();
gs_reset_blend_state();
gs_enable_blending(false);
gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);
gs_enable_color(true, true, true, true);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_set_cull_mode(GS_NEITHER);
// sRGB support.
bool old_srgb = gs_framebuffer_srgb_enabled();
gs_enable_framebuffer_srgb(gs_get_linear_srgb());
// Render each mip map level.
for (size_t mip = 1; mip < max_mip_level; mip++) {
#ifdef ENABLE_PROFILING
@ -296,22 +311,11 @@ void streamfx::obs::gs::mipmapper::rebuild(std::shared_ptr<streamfx::obs::gs::te
float_t iwidth = 1.f / static_cast<float_t>(cwidth);
float_t iheight = 1.f / static_cast<float_t>(cheight);
// Set up rendering state.
gs_blend_state_push();
gs_reset_blend_state();
gs_enable_blending(false);
gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);
gs_enable_color(true, true, true, true);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_set_cull_mode(GS_NEITHER);
try {
auto op = _rt->render(cwidth, cheight);
gs_ortho(0, 1, 0, 1, 0, 1);
_effect.get_parameter("image").set_texture(target);
_effect.get_parameter("image").set_texture(target, gs_get_linear_srgb());
_effect.get_parameter("imageTexel").set_float2(iwidth, iheight);
_effect.get_parameter("level").set_int(int32_t(mip - 1));
while (gs_effect_loop(_effect.get_object(), "Draw")) {
@ -320,9 +324,6 @@ void streamfx::obs::gs::mipmapper::rebuild(std::shared_ptr<streamfx::obs::gs::te
} catch (...) {
}
// Clean up rendering state.
gs_blend_state_pop();
// Copy from the render target to the target mip level.
#ifdef _WIN32
if (gs_get_device_type() == GS_DEVICE_DIRECT3D_11) {
@ -334,6 +335,10 @@ void streamfx::obs::gs::mipmapper::rebuild(std::shared_ptr<streamfx::obs::gs::te
}
}
// Clean up rendering state.
gs_enable_framebuffer_srgb(old_srgb);
gs_blend_state_pop();
} else {
throw std::runtime_error("Only 2D Textures support Mip-mapping.");
}