Introduce the texture register. Step towards the deferred pipeline

1 files changed, 6 insertions, 1 deletions

diff --git a/include/swgfx.h b/include/swgfx.h
index 72164b1..a1ce872 100644
--- a/include/swgfx.h
+++ b/include/swgfx.h
@@ -24,6 +24,8 @@ Multi-threading:
 
 #define SWGFX_PROFILING 1 // TODO: Move this to client project cmake.
 
+constexpr size_t SWGFX_MAX_TEXTURES = 255;
+
 typedef float R;
 
 typedef struct sgVec2i { int x, y; }       sgVec2i;
@@ -55,6 +57,8 @@ typedef sgRgba sgPixel;
 // TODO: Expose a macro to control the desired surface format.
 typedef sgBgra sgScreenPixel;
 
+typedef uint16_t sgTextureId;
+
 typedef enum sgTextureFilter {
   sgNearest,
   sgBilinear
@@ -93,7 +97,8 @@ void sgOrtho      (swgfx*, R left, R right, R top, R bottom, R near, R far);
 void sgPerspective(swgfx*, R fovy, R aspect, R near, R far);
 void sgViewport   (swgfx*, int x0, int y0, int width, int height);
 
-void sgTexture(swgfx*, const sgImage*, sgTextureFilter);
+void sgTextureRegister(swgfx*, sgTextureId, const sgImage*, sgTextureFilter);
+void sgTextureActivate(swgfx*, sgTextureId);
 
 void sgClear(swgfx*);
 void sgPixels(swgfx*, size_t count, const sgVec2i* positions, sgPixel colour);