X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbackends%2Fvulkan%2Ftexture_backend.cpp;h=dd19c63664b88658fe06917798742bbcbb4fd2f5;hb=7b0a38db12c3d1aacb59520a3f4baa16d9ec0048;hp=168d6adb0501d69a501b83e8bb726a860fd8e978;hpb=3abde92c3780568c792169e48741f6c5699aa0e7;p=libs%2Fgl.git

diff --git a/source/backends/vulkan/texture_backend.cpp b/source/backends/vulkan/texture_backend.cpp
index 168d6adb..dd19c636 100644
--- a/source/backends/vulkan/texture_backend.cpp
+++ b/source/backends/vulkan/texture_backend.cpp
@@ -100,6 +100,43 @@ void VulkanTexture::allocate()
 		set_vulkan_object_names();
 }
 
+void VulkanTexture::stage_pixels(void *staging, const void *data, size_t count)
+{
+	const Texture &self = *static_cast<const Texture *>(this);
+
+	if(self.swizzle==RGBA_TO_RGB)
+	{
+		const uint32_t *src = static_cast<const uint32_t *>(data);
+		uint32_t *dst = static_cast<uint32_t *>(staging);
+		size_t i = 0;
+		for(; i+3<count; i+=4)
+		{
+			dst[0] = src[0]|0xFF000000;
+			dst[1] = (src[0]>>24)|(src[1]<<8)|0xFF000000;
+			dst[2] = (src[1]>>16)|(src[2]<<16)|0xFF000000;
+			dst[3] = (src[2]>>8)|0xFF000000;
+			src += 3;
+			dst += 4;
+		}
+
+		if(i<count)
+		{
+			const uint8_t *src_bytes = reinterpret_cast<const uint8_t *>(src);
+			for(; i<count; ++i)
+			{
+				*dst++ = src_bytes[0]|(src_bytes[1]<<8)|(src_bytes[2]<<16)|0xFF000000;
+				src_bytes += 3;
+			}
+		}
+	}
+	else
+	{
+		const char *src = static_cast<const char *>(data);
+		size_t data_size = count*get_pixel_size(self.storage_fmt);
+		copy(src, src+data_size, static_cast<char *>(staging));
+	}
+}
+
 void VulkanTexture::generate_mipmap_levels(unsigned n_levels)
 {
 	TransferQueue &tq = device.get_transfer_queue();