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LibSoftGPU: Add SIMD utilization counter to debug overlay

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This adds a counter to the debug overlay that displays the average
percentage of SIMD lane utilization.

This number represents the number of pixels that were output for each
quad. A utilization of 100% means that all 4 SIMD lanes were used and
no pixels were masked out before being written to the color buffer.
This commit is contained in:
Stephan Unverwerth 2022-01-01 23:29:51 +01:00 committed by Ali Mohammad Pur
parent b8e06ca757
commit f510a3cd8f
Notes: sideshowbarker 2024-07-17 21:26:19 +09:00 
Author: https://github.com/sunverwerth
Commit: https://github.com/SerenityOS/serenity/commit/f510a3cd8f1
Pull-request: https://github.com/SerenityOS/serenity/pull/11568
Reviewed-by: https://github.com/Hendiadyoin1 ✅
Reviewed-by: https://github.com/Quaker762 ✅
Reviewed-by: https://github.com/gmta
1 changed files with 4 additions and 0 deletions
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4
Userland/Libraries/LibSoftGPU/Device.cpp
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@ -24,6 +24,7 @@ static long long g_num_pixels;
static long long g_num_pixels_shaded;
static long long g_num_pixels_blended;
static long long g_num_sampler_calls;
static long long g_num_quads;
using IntVector2 = Gfx::Vector2<int>;
using IntVector3 = Gfx::Vector3<int>;
@ -271,6 +272,7 @@ static void rasterize_triangle(const RasterizerOptions& options, Gfx::Bitmap& re
if (none(quad.mask))
continue;
INCREASE_STATISTICS_COUNTER(g_num_quads, 1);
INCREASE_STATISTICS_COUNTER(g_num_pixels, maskcount(quad.mask));
// Calculate barycentric coordinates from previously calculated edge values
@ -902,6 +904,7 @@ void Device::draw_statistics_overlay(Gfx::Bitmap& target)
static_cast<double>(milliseconds) / frame_counter,
(milliseconds > 0) ? 1000.0 * frame_counter / milliseconds : 9999.0));
builder.append(String::formatted("Triangles : {}\n", g_num_rasterized_triangles));
builder.append(String::formatted("SIMD usage : {}%\n", g_num_quads > 0 ? g_num_pixels_shaded * 25 / g_num_quads : 0));
builder.append(String::formatted("Pixels : {}, Shaded: {}%, Blended: {}%, Overdraw: {}%\n",
g_num_pixels,
g_num_pixels_shaded * 100 / g_num_pixels,
@ -920,6 +923,7 @@ void Device::draw_statistics_overlay(Gfx::Bitmap& target)
g_num_pixels_shaded = 0;
g_num_pixels_blended = 0;
g_num_sampler_calls = 0;
g_num_quads = 0;
auto& font = Gfx::FontDatabase::default_fixed_width_font();