From 74f46f45bf03733ad1410c44a121ca526b3a8de0 Mon Sep 17 00:00:00 2001
From: NotAShelf <raf@notashelf.dev>
Date: Sun, 2 Nov 2025 01:19:18 +0300
Subject: [PATCH] chroma: add scaling modes to header

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I8935a2a5a8e5e33d38e937502b3b82456a6a6964
---
 include/chroma.h         | 32 ++++++++++++++++++++++++++++++++
 include/chroma_version.h |  2 ++
 2 files changed, 34 insertions(+)

diff --git a/include/chroma.h b/include/chroma.h
index b49b0b6..eee298a 100644
--- a/include/chroma.h
+++ b/include/chroma.h
@@ -36,6 +36,22 @@ typedef enum {
   CHROMA_ERROR_MEMORY = -6
 } chroma_error_t;
 
+// Scaling modes for wallpaper display
+typedef enum {
+  CHROMA_SCALE_FILL = 0,    // fill entire output, crop if necessary
+  CHROMA_SCALE_FIT = 1,     // fit image within output, add borders if needed
+  CHROMA_SCALE_STRETCH = 2, // stretch to fill output, may distort aspect ratio
+  CHROMA_SCALE_CENTER = 3   // center image at original size
+} chroma_scale_mode_t;
+
+// Image filtering quality settings
+typedef enum {
+  CHROMA_FILTER_NEAREST = 0,  // nearest neighbor filtering (pixelated)
+  CHROMA_FILTER_LINEAR = 1,   // linear filtering (smooth)
+  CHROMA_FILTER_BILINEAR = 2, // bilinear filtering (smoother)
+  CHROMA_FILTER_TRILINEAR = 3 // trilinear filtering (smoothest)
+} chroma_filter_quality_t;
+
 // Image data structure
 typedef struct {
   unsigned char *data; // RGBA pixel data
@@ -71,6 +87,11 @@ typedef struct {
   // Associated wallpaper
   chroma_image_t *image;
 
+  // Configuration for this output
+  chroma_scale_mode_t scale_mode;
+  chroma_filter_quality_t filter_quality;
+  bool config_loaded;
+
   // OpenGL resource cache
   GLuint texture_id;
   GLuint shader_program;
@@ -84,6 +105,8 @@ typedef struct {
 typedef struct {
   char output_name[256];
   char image_path[MAX_PATH_LEN];
+  chroma_scale_mode_t scale_mode;
+  chroma_filter_quality_t filter_quality;
 } chroma_config_mapping_t;
 
 // Application configuration
@@ -92,6 +115,10 @@ typedef struct {
   int mapping_count;
   char default_image[MAX_PATH_LEN];
   bool daemon_mode;
+
+  // Global scaling and filtering settings (used as defaults)
+  chroma_scale_mode_t default_scale_mode;
+  chroma_filter_quality_t default_filter_quality;
 } chroma_config_t;
 
 // Main application state
@@ -194,6 +221,11 @@ int chroma_config_load(chroma_config_t *config, const char *config_file);
 void chroma_config_free(chroma_config_t *config);
 const char *chroma_config_get_image_for_output(chroma_config_t *config,
                                                const char *output_name);
+int chroma_config_get_mapping_for_output(
+    chroma_config_t *config, const char *output_name,
+    chroma_scale_mode_t *scale_mode, chroma_filter_quality_t *filter_quality);
+int chroma_config_create_sample(const char *config_file);
+void chroma_config_print(const chroma_config_t *config);
 
 // Main loop and events
 int chroma_run(chroma_state_t *state);
diff --git a/include/chroma_version.h b/include/chroma_version.h
index a160ad2..1ab736b 100644
--- a/include/chroma_version.h
+++ b/include/chroma_version.h
@@ -1,6 +1,8 @@
 #ifndef CHROMA_VERSION_H
 #define CHROMA_VERSION_H
 
+#ifndef CHROMA_VERSION
 #define CHROMA_VERSION "1.0.1"
+#endif
 
 #endif // CHROMA_VERSION_H