Mercurial > hg > ascension / file diff

--- a/src/shader.c	Tue Mar 18 22:43:31 2025 +0100
+++ b/src/shader.c	Wed Mar 19 22:43:37 2025 +0100
@@ -30,6 +30,8 @@
 
 #include <GL/glew.h>
 #include <string.h>
+#include <cx/buffer.h>
+#include <cx/streams.h>
 
 /**
  * Compiles a shader from the given source code.
@@ -131,3 +133,30 @@
     }
     return prog;
 }
+
+static int asc_shader_load_code_file(const char *filename, char **code) {
+    if (filename == NULL) {
+        *code = NULL;
+        return 0;
+    }
+    FILE *f = fopen(filename, "r");
+    if (f == NULL) return -1;
+    CxBuffer buffer;
+    cxBufferInit(&buffer, NULL, 1024, NULL, 0);
+    cx_stream_copy(f, &buffer, (cx_read_func) fread, cxBufferWriteFunc);
+    cxBufferPut(&buffer, '\0');
+    *code = realloc(buffer.space, buffer.size);
+    return *code == NULL ? -1 : 0;
+}
+
+int asc_shader_load_code_files(AscShaderCodeFiles files, AscShaderCodes *codes) {
+    int ret = 0;
+    ret |= asc_shader_load_code_file(files.vtx, &codes->vtx);
+    ret |= asc_shader_load_code_file(files.frag, &codes->frag);
+    return ret;
+}
+
+void asc_shader_free_codes(AscShaderCodes codes) {
+    free(codes.vtx);
+    free(codes.frag);
+}