window, texture, model, camera and gui (silly button)

1 files changed, 59 insertions, 24 deletions

diff --git a/prge_shader.c b/prge_shader.c
index 21a91f3..96b50f1 100644
--- a/prge_shader.c
+++ b/prge_shader.c
@@ -1,28 +1,33 @@
 U32 compile_shader(GLenum type, Str8 filename)
 {
-	Arena *tmp = arena_alloc(0);
+	Arena		*tmp;
+	Str8		src;
+	U32		id;
+	S32		status;
+	const char	*csrc;
 
-	Str8 src = str8_read_entire_file(tmp, filename);
+	tmp = arena_alloc(0);
+
+	src = str8_read_entire_file(tmp, filename);
 	if (!src.ptr || !src.length) {
-		str8print(str8_pushf(tmp, "[ERROR] : Failed to read \"%.*s\"\n", str8expand(filename)));
+		str8print(str8pushf(tmp, "[ERROR] : Failed to read \"%.*s\"\n", str8expand(filename)));
 		arena_release(tmp);
 		return 0;
 	}
 
-	const char *csrc = str8_to_cstr(tmp, src);
+	csrc = str8tocstr(tmp, src);
 
-	U32 id = glCreateShader(type);
+	id = glCreateShader(type);
 	glShaderSource(id, 1, &csrc, 0);
 	glCompileShader(id);
 
-	S32 status;
 	glGetShaderiv(id, GL_COMPILE_STATUS, &status);
 	if (status == GL_FALSE) {
-		char log[512];
+		char	log[512];
 		glGetShaderInfoLog(id, 512, 0, log);
-		str8print(str8_pushf(tmp, "[ERROR] : Failed to compile : \"%.*s\"\n%s", str8expand(filename), log));
+		str8print(str8pushf(tmp, "[ERROR] : Failed to compile : \"%.*s\"\n%s", str8expand(filename), log));
 	} else {
-		str8print(str8_pushf(tmp, "[INFO] : \"%.*s\" compiled successfully.\n", str8expand(filename)));
+		str8print(str8pushf(tmp, "[INFO] : \"%.*s\" compiled successfully.\n", str8expand(filename)));
 	}
 
 	arena_release(tmp);
@@ -30,36 +35,66 @@ U32 compile_shader(GLenum type, Str8 filename)
 	return id;
 }
 
-U32 create_shader_program(Str8 vert_filename, Str8 frag_filename)
+U32 load_shader(char *vert_filename, char *geom_filename, char *frag_filename)
 {
-	U32 vert = compile_shader(GL_VERTEX_SHADER, vert_filename);
-	U32 frag = compile_shader(GL_FRAGMENT_SHADER, frag_filename);
+	U32	vert, geom, frag, id;
+	Arena	*tmp;
+	S32	success;
+
+	if (vert_filename)
+		vert = compile_shader(GL_VERTEX_SHADER, str8fromcstr(vert_filename));
+	if (geom_filename)
+		geom = compile_shader(GL_GEOMETRY_SHADER, str8fromcstr(geom_filename));
+	if (frag_filename)
+		frag = compile_shader(GL_FRAGMENT_SHADER, str8fromcstr(frag_filename));
 
-	Arena *tmp = arena_alloc(0);
+	tmp = arena_alloc(0);
 
-	U32 id = glCreateProgram();
-	glAttachShader(id, vert);
-	glAttachShader(id, frag);
+	id = glCreateProgram();
+	if (vert_filename)
+		glAttachShader(id, vert);
+	if (geom_filename)
+		glAttachShader(id, geom);
+	if (frag_filename)
+		glAttachShader(id, frag);
 	glLinkProgram(id);
-	S32 success;
 	glGetProgramiv(id, GL_LINK_STATUS, &success);
 	if (success == GL_FALSE) {
-		char log[512];
+		char	log[512];
 		glGetProgramInfoLog(id, 512, 0, log);
-		str8print(str8_pushf(tmp, "[ERROR]: Failed to link shader program:\n%s", log));
+		str8print(str8pushf(tmp, "[ERROR] : Failed to link shader program:\n%s", log));
 	} else {
-		str8print(str8_pushf(tmp, "[INFO]: Shader program linked successfuly.\n\n"));
+		str8print(str8pushf(tmp, "[INFO] : Shader linked successfuly.\n\n"));
 	}
-	glDeleteShader(vert);
-	glDeleteShader(frag);
+	if (vert_filename)
+		glDeleteShader(vert);
+	if (geom_filename)
+		glDeleteShader(geom);
+	if (frag_filename)
+		glDeleteShader(frag);
 
 	arena_release(tmp);
 
 	return id;
 }
 
-void shader_set_mat4fv(U32 id, char *name, Mat4 m)
+void shader_set_3fv(U32 id, char *name, V3 v)
+{
+	S32	loc;
+	loc = glGetUniformLocation(id, name);
+	glUniform3fv(loc, 1, (F32 *)&v);
+}
+
+void shader_set_4fv(U32 id, char *name, V4 v)
+{
+	S32	loc;
+	loc = glGetUniformLocation(id, name);
+	glUniform4fv(loc, 1, (F32 *)&v);
+}
+
+void shader_set_mat4fv(U32 id, char *name, MAT4 m)
 {
-	S32 loc = glGetUniformLocation(id, name);
+	S32	loc;
+	loc = glGetUniformLocation(id, name);
 	glUniformMatrix4fv(loc, 1, 0, (F32 *)&m);
 }