1 files changed, 72 insertions, 0 deletions
diff --git a/Runtime/GfxDevice/opengles20/GpuProgramsGLES20_UniformCache.cpp b/Runtime/GfxDevice/opengles20/GpuProgramsGLES20_UniformCache.cpp
new file mode 100644
index 0000000..db725d2
--- /dev/null
+++ b/Runtime/GfxDevice/opengles20/GpuProgramsGLES20_UniformCache.cpp
@@ -0,0 +1,72 @@
+#include "UnityPrefix.h"
+#if !GFX_SUPPORTS_OPENGLES20
+#error "Should not include GpuProgramsGLES20 on this platform"
+#endif
+
+#include "GpuProgramsGLES20_UniformCache.h"
+
+#include "Runtime/Allocator/MemoryMacros.h"
+#include "Runtime/GfxDevice/GpuProgram.h"
+#include "IncludesGLES20.h"
+#include "AssertGLES20.h"
+
+
+void UniformCacheGLES20::Create(const GpuProgramParameters* params, int fogParamsIndex, int fogColorIndex)
+{
+	int lastUsedUniform = -1;
+
+	// we will track only float/vector uniforms
+	GpuProgramParameters::ValueParameterArray::const_iterator paramI	= params->GetValueParams().begin();
+	GpuProgramParameters::ValueParameterArray::const_iterator paramEnd	= params->GetValueParams().end();
+	while(paramI != paramEnd)
+	{
+		if(paramI->m_RowCount == 1 && paramI->m_ArraySize == 1 && paramI->m_Index > lastUsedUniform)
+			lastUsedUniform = paramI->m_Index;
+
+		++paramI;
+	}
+
+	const BuiltinShaderParamIndices& builtinParam = params->GetBuiltinParams();
+	for(unsigned i = 0 ; i < kShaderInstanceVecCount ; ++i)
+	{
+		if(builtinParam.vec[i].gpuIndex > lastUsedUniform)
+			lastUsedUniform = builtinParam.vec[i].gpuIndex;
+	}
+
+	if(fogParamsIndex > lastUsedUniform)	lastUsedUniform = fogParamsIndex;
+	if(fogColorIndex > lastUsedUniform)		lastUsedUniform = fogColorIndex;
+
+	count   = lastUsedUniform + 1;
+	uniform = (float*)UNITY_MALLOC_ALIGNED(kMemShader, count*4 * sizeof(float), 16);
+	memset(uniform, 0xff /* NaN */, count*4 * sizeof(float));
+}
+
+void UniformCacheGLES20::Destroy()
+{
+	count = 0;
+
+	UNITY_FREE(kMemShader, uniform);
+	uniform = 0;
+}
+
+
+// In theory Uniform*f can also be used to load bool uniforms, in practice
+// some drivers don't like that (e.g. PVR GLES2.0 Emu wants bools to be loaded
+// via Uniform*i). So load both integers and bools via *i functions.
+#define CACHED_UNIFORM_IMPL(Count) \
+void CachedUniform##Count(UniformCacheGLES20* cache, ShaderParamType type, int index, const float* val)	\
+{																					\
+	if (cache->UpdateUniform(index, val, Count)) {									\
+		if (type == kShaderParamFloat)												\
+			GLES_CHK(glUniform##Count##fv(index, 1, val));							\
+		else {																		\
+			int ival[4] = {val[0],val[1],val[2],val[3]};							\
+			GLES_CHK(glUniform##Count##iv(index, 1, ival));							\
+		}																			\
+	}																				\
+}																					\
+
+CACHED_UNIFORM_IMPL(1);
+CACHED_UNIFORM_IMPL(2);
+CACHED_UNIFORM_IMPL(3);
+CACHED_UNIFORM_IMPL(4);