wip shader layouts for common stuff

1 files changed, 32 insertions, 14 deletions

diff --git a/src/new_render/skybox.h b/src/new_render/skybox.h
index 9bdc2ec..ec06658 100644
--- a/src/new_render/skybox.h
+++ b/src/new_render/skybox.h
@@ -7,20 +7,6 @@
 #include "defines.h"
 #include "ral_types.h"
 
-typedef struct CubeMapData {
-    void* top_image_data;
-    void* bottom_image_data;
-    void* left_image_data;
-    void* right_image_data;
-    void* front_image_data;
-    void* back_image_data;
-    u32 width, height, num_channels;
-} CubeMapData;
-
-PUB void CubeMapData_Load(const char** face_paths, int n); // should always pass n = 6 for now
-PUB void CubeMapData_Free(CubeMapData* cubemap); // Frees all the image data for a cubemap
-PUB TextureHandle CubeMapData_Upload(CubeMapData* cubemap);
-
 typedef struct Skybox {
     BufferHandle vertex_buffer;
     TextureHandle texture;
@@ -30,3 +16,35 @@ typedef struct Skybox {
 PUB Skybox Skybox_Create(const char** face_paths, int n); // should always pass n = 6 for now
 
 PUB void Skybox_Draw(Skybox* skybox);
+
+typedef struct SkyboxUniforms {
+    Vec3 in_pos;
+    TextureHandle cubemap;
+} SkyboxUniforms;
+
+static ShaderDataLayout Skybox_GetLayout(void* data) {
+    SkyboxUniforms* d = (SkyboxUniforms*)data; // cold cast
+    bool has_data = data != NULL;
+
+    ShaderBinding b1 = {
+        .label = "In",
+        .vis = VISIBILITY_VERTEX,
+        .kind = BINDING_BYTES,
+        .data = {.bytes = {.size = sizeof(Vec3)}}
+    };
+
+    ShaderBinding b2 = {
+        .label = "cubemap",
+        .vis = VISIBILITY_FRAGMENT,
+        .kind = BINDING_SAMPLER,
+    };
+
+    if (has_data) {
+        b1.data.bytes.data = &d->in_pos;
+        b2.data.texture.handle = d->cubemap;
+    }
+    return (ShaderDataLayout) {
+        .bindings = { b1, b2},
+        .binding_count = 2
+    };
+}
\ No newline at end of file