Specialise glTexture::savePosition

Normalises the range of position information into the range 0-255 so the
resulting image is remotely useful.

1 files changed, 5 insertions, 4 deletions

diff --git a/gfx/models/tga.h b/gfx/models/tga.h
index 3d072fb..955e5e1 100644
--- a/gfx/models/tga.h
+++ b/gfx/models/tga.h
@@ -3,14 +3,15 @@
 #include <cstdint>
 #include <glm/vec2.hpp>
 
-struct TGAHead {
+template<glm::length_t Channels> struct TGAHead {
 	using XY = glm::vec<2, uint16_t>;
+	using PixelType = glm::vec<Channels, uint8_t>;
+
 	uint8_t idLength {}, colorMapType {}, format {};
 	uint16_t __attribute__((packed)) colorMapFirst {}, colorMapLength {};
 	uint8_t colorMapEntrySize {};
 	XY origin {}, size {};
-	uint8_t pixelDepth {};
+	uint8_t pixelDepth {8 * Channels};
 	uint8_t descriptor {};
+	PixelType data[1] {};
 };
-
-static_assert(sizeof(TGAHead) == 18);