--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/error.c Sat May 03 14:30:56 2025 +0200
@@ -0,0 +1,111 @@
+/*
+* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ * Copyright 2025 Mike Becker. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ascension/context.h"
+#include "ascension/error.h"
+
+#include <cx/printf.h>
+
+#include <GL/glew.h>
+
+
+void asc_error_impl(const char* file, unsigned line, char const* fmt, ...) {
+ asc_set_flag(asc_context.flags, ASC_FLAG_HAS_ERROR);
+
+ // write to error buffer
+ va_list args;
+ va_start(args, fmt);
+ CxBuffer* buf = &asc_context.error_buffer;
+ size_t bufpos = buf->pos;
+ int written = cx_vfprintf(buf, cxBufferWriteFunc, fmt, args);
+ cxBufferPut(buf, '\n');
+ va_end(args);
+
+ // also print to stderr
+ // avoid double-formatting, get it directly from the buffer
+ fprintf(stderr, "[ERROR %s %u] %.*s\n",
+ file, line, written, buf->space+bufpos);
+}
+
+bool asc_has_error(void) {
+ return asc_test_flag(asc_context.flags, ASC_FLAG_HAS_ERROR);
+}
+
+char const* asc_get_error(void) {
+ // we zero-terminate the current buffer contents before providing them
+ cxBufferPut(&asc_context.error_buffer, 0);
+ --asc_context.error_buffer.pos;
+ --asc_context.error_buffer.size;
+ return asc_context.error_buffer.space;
+}
+
+void asc_clear_error(void) {
+ cxBufferClear(&asc_context.error_buffer);
+ asc_clear_flag(asc_context.flags, ASC_FLAG_HAS_ERROR);
+}
+
+void asc_error_gl(unsigned code, const char *message) {
+ const char *glerr;
+ switch(code) {
+ case GL_NO_ERROR:
+ return;
+ case GL_INVALID_ENUM:
+ glerr = "invalid enum";
+ break;
+ case GL_INVALID_VALUE:
+ glerr = "invalid value";
+ break;
+ case GL_INVALID_OPERATION:
+ glerr = "invalid operation";
+ break;
+ case GL_INVALID_FRAMEBUFFER_OPERATION:
+ glerr = "invalid framebuffer operation";
+ break;
+ case GL_OUT_OF_MEMORY:
+ glerr = "out of memory";
+ break;
+ case GL_STACK_UNDERFLOW:
+ glerr = "stack underflow";
+ break;
+ case GL_STACK_OVERFLOW:
+ glerr = "stack overflow";
+ break;
+ default:
+ glerr = "unknown GL error";
+ }
+ asc_error("%s\nGL Error: %s", message, glerr);
+}
+
+int asc_error_catch_all_gl(void) {
+ GLenum error;
+ int ret = 0;
+ while ((error = glGetError()) != GL_NO_ERROR) {
+ asc_error_gl(error, "Uncaught");
+ ret = 1;
+ }
+ return ret;
+}