Headless: Print the number of pipelines created

Vulkan and Metal pipelines, and OpenGL programs, including those precompiled from the shader cache. Benchmark
times include the compiles, so this shows when two builds differ in how many they need.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

GPU/GLES/ShaderManagerGLES.cpp

@@ -782,6 +782,7 @@ LinkedShader *ShaderManagerGLES::ApplyFragmentShader(VShaderID VSID, Shader *vs,
 
 		// Check if we can link these.
 		ls = new LinkedShader(render_, VSID, vs, FSID, fs, vs->UseHWTransform());
+		gpuStats.totals.numPipelinesCreated++;
 		ls->use(VSID);
 		const LinkedShaderCacheEntry entry(vs, fs, ls);
 		linkedShaderCache_.push_back(entry);
@@ -1032,6 +1033,7 @@ bool ShaderManagerGLES::LoadCache(File::IOFile &f) {
 		fsCache_.Get(fsid, &fs);
 		if (vs && fs) {
 			LinkedShader *ls = new LinkedShader(render_, vsid, vs, fsid, fs, vs->UseHWTransform(), true);
+			gpuStats.totals.numPipelinesCreated++;
 			LinkedShaderCacheEntry entry(vs, fs, ls);
 			linkedShaderCache_.push_back(entry);
 		}

GPU/GPU.h

@@ -148,6 +148,8 @@ struct GPUStatsPerFrame {
 struct GPUStatsTotals {
 	// Flip count. Doesn't really belong here.
 	int numFlips;
+	// Vulkan and Metal pipelines, and OpenGL programs, including those precompiled from the shader cache.
+	int numPipelinesCreated;
 };
 
 // The ToString function lives in GPUCommonHW.cpp.

GPU/Metal/DrawEngineMetal.mm

@@ -278,6 +278,7 @@ DrawEngineMetal::Pipeline *DrawEngineMetal::GetOrCreatePipeline(const MetalPipel
 	pipeline->state = [MetalPipelineState new];
 	pipeline->format = format;
 	pipelines_.Insert(key, pipeline);
+	gpuStats.totals.numPipelinesCreated++;
 	if (vs->Failed() || fs->Failed()) {
 		[pipeline->state setPipeline:nil];
 		return pipeline;

GPU/Vulkan/PipelineManagerVulkan.cpp

@@ -11,6 +11,7 @@
 #include "GPU/Vulkan/ShaderManagerVulkan.h"
 #include "GPU/Common/ShaderId.h"
 #include "GPU/GPUDefinitions.h"
+#include "GPU/GPU.h"
 #include "Common/GPU/thin3d.h"
 #include "Common/GPU/Vulkan/VulkanRenderManager.h"
 #include "Common/GPU/Vulkan/VulkanQueueRunner.h"
@@ -396,6 +397,7 @@ VulkanPipeline *PipelineManagerVulkan::GetOrCreatePipeline(VulkanRenderManager *
 
 	// If the above failed, we got a null pipeline. We still insert it to keep track.
 	pipelines_.Insert(key, pipeline);
+	gpuStats.totals.numPipelinesCreated++;
 
 	// Don't return placeholder null pipelines.
 	if (pipeline && pipeline->pipeline) {

headless/Headless.cpp

@@ -766,6 +766,8 @@ static bool RunAutoTest(GraphicsContext *graphicsContext, CoreParameter &corePar
 		}
 		fprintf(stderr, "Frame stats: %d flips in %d emulated seconds, wall %.1fs, per second:%s\n", total, (int)flipsPerSecond.size(), time_now_d() - startTime, perSecond.c_str());
 	}
+	// What shader compiles cost the run, which the times include.
+	fprintf(stderr, "Pipelines created: %d\n", gpuStats.totals.numPipelinesCreated);
 	if (coreParameter.bootFromState) {
 		// Counted from the state's load. More than a few, and the game has gone off its usual path.
 		fprintf(stderr, "Failed disc reads: %d\n", pspFileSystem.FailedDiscReads());