1 files changed, 84 insertions, 0 deletions
diff --git a/Runtime/GfxDevice/GLESChannels.h b/Runtime/GfxDevice/GLESChannels.h
new file mode 100644
index 0000000..9a683e7
--- /dev/null
+++ b/Runtime/GfxDevice/GLESChannels.h
@@ -0,0 +1,84 @@
+#ifndef GLES_CHANNELS_H
+#define GLES_CHANNELS_H
+
+#if GFX_SUPPORTS_OPENGLES20
+	#include "Runtime/GfxDevice/opengles20/UnityGLES20Ext.h"
+#endif
+
+// dimensionality of the different channels (element count)
+static const int kDefaultChannelSizes[kShaderChannelCount] = {
+	3, // pos
+	3, // normal
+	4, // color
+	2, // uv
+	2, // uv2
+	4, // tangent
+};
+
+static const GLenum kDefaultChannelTypes[kShaderChannelCount] = {
+	GL_FLOAT, // pos
+	GL_FLOAT, // normal
+	GL_UNSIGNED_BYTE, // color
+	GL_FLOAT, // UV0
+	GL_FLOAT, // UV1
+	GL_FLOAT, // tangent
+};
+
+enum VertexChannel {
+	kVtxChnVertex = 1 << kVertexCompVertex,
+	kVtxChnColor = 1 << kVertexCompColor,
+	kVtxChnNormal = 1 << kVertexCompNormal,
+	kVtxChnTexCoord0 = 1 << kVertexCompTexCoord0,
+	kVtxChnTexCoord1 = 1 << kVertexCompTexCoord1,
+	kVtxChnTexCoord2 = 1 << kVertexCompTexCoord2,
+	kVtxChnTexCoord3 = 1 << kVertexCompTexCoord3,
+	kVtxChnTexCoord4 = 1 << kVertexCompTexCoord4,
+	kVtxChnTexCoord5 = 1 << kVertexCompTexCoord5,
+	kVtxChnTexCoord6 = 1 << kVertexCompTexCoord6,
+	kVtxChnTexCoord7 = 1 << kVertexCompTexCoord7
+};
+
+static const VertexChannel sTexCoordChannels[] = {
+	kVtxChnTexCoord0, kVtxChnTexCoord1, kVtxChnTexCoord2, kVtxChnTexCoord3,
+	kVtxChnTexCoord4, kVtxChnTexCoord5, kVtxChnTexCoord6, kVtxChnTexCoord7
+};
+
+static void SetupGLESChannelSizes(const ChannelInfoArray channels, int outSizes[kShaderChannelCount])
+{
+	for (int i = 0; i < kShaderChannelCount; i++)
+	{
+		if (channels[i].format == kChannelFormatColor)
+			outSizes[i] = 4;
+		else
+			outSizes[i] = channels[i].dimension;
+	}
+}
+
+static void SetupGLESChannelTypes(const ChannelInfoArray channels, GLenum outTypes[kShaderChannelCount])
+{
+	for (int i = 0; i < kShaderChannelCount; i++)
+	{
+		switch (channels[i].format)
+		{
+			case kChannelFormatFloat:
+				outTypes[i] = GL_FLOAT;
+				break;
+#if GFX_SUPPORTS_OPENGLES20
+			case kChannelFormatFloat16:
+				outTypes[i] = GL_HALF_FLOAT_OES;
+				break;
+#endif
+			case kChannelFormatColor:
+				outTypes[i] = GL_UNSIGNED_BYTE;
+				break;
+			case kChannelFormatByte:
+				outTypes[i] = GL_BYTE;
+				break;
+			default:
+				if (channels[i].IsValid())
+					ErrorString("Vertex channel has invalid type for GLES");
+		}
+	}
+}
+
+#endif