Multitexturing support

- added CImage class for loading/saving images and a simple test for it
- added libpng library to build
- added Gfx::Texture struct
- updated the Gfx::CDevice interface to include new features
- implemented the new features in Gfx::CGLDevice

1 files changed, 17 insertions, 0 deletions

diff --git a/src/graphics/common/device.cpp b/src/graphics/common/device.cpp
index fcd4318..bb51699 100644
--- a/src/graphics/common/device.cpp
+++ b/src/graphics/common/device.cpp
@@ -31,3 +31,20 @@ void Gfx::DeviceConfig::LoadDefault()
     doubleBuf = true;
     noFrame = false;
 }
+
+void Gfx::TextureParams::LoadDefault()
+{
+    minFilter = Gfx::TEX_MIN_FILTER_NEAREST;
+    magFilter = Gfx::TEX_MAG_FILTER_NEAREST;
+
+    wrapS = Gfx::TEX_WRAP_REPEAT;
+    wrapT = Gfx::TEX_WRAP_REPEAT;
+
+    colorOperation = Gfx::TEX_MIX_OPER_MODULATE;
+    colorArg1 = Gfx::TEX_MIX_ARG_CURRENT;
+    colorArg2 = Gfx::TEX_MIX_ARG_TEXTURE;
+
+    alphaOperation = Gfx::TEX_MIX_OPER_MODULATE;
+    alphaArg1 = Gfx::TEX_MIX_ARG_CURRENT;
+    alphaArg2 = Gfx::TEX_MIX_ARG_TEXTURE;
+}