Add beginning of interpreterF

3 files changed, 48 insertions, 9 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..053e5a6
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+psl: psl.c psl.h
+	gcc -Wall `pkg-config --cflags --libs pixman-1` -lm psl.c
\ No newline at end of file
diff --git a/psl.c b/psl.c
index f3f1958..f3eafcb 100644
--- a/psl.c
+++ b/psl.c
@@ -52,7 +52,7 @@ struct instruction_list_t
 
 struct psl_program_t
 {
-    instruction_list_t *inst;
+    instruction_list_t *instructions;
 };
 
 psl_program_t *
@@ -60,7 +60,7 @@ psl_program_create (psl_statement_t *statement)
 {
     psl_program_t *program = new (psl_program_t);
 
-    program->inst = statement;
+    program->instructions = statement;
 
     return program;
 }
@@ -117,14 +117,52 @@ psl_asm (psl_instruction_t *instruction,
     return stmt;
 }
 
+static void
+run_box (pixman_box32_t *box,
+	 pixman_image_t *destination,
+	 instruction_list_t *instructions,
+	 pixman_image_t **sources)
+{
+    int width, height;
+
+    height = box->y2 - box->y1;
+    width = box->x2 - box->x1;
+
+    while (height--)
+    {
+	int w = width;
+
+	while (w--)
+	{
+	    int i;
+
+	    for (i = 0; i < instructions->n_instructions; ++i)
+	    {
+		psl_instruction_t *instruction =
+		    &(instructions->instructions[i]);
+
+		switch (instruction->type)
+		{
+		    
+		}
+	    }
+	}
+    }
+}
+
 void
 psl_program_run (psl_program_t     *program,
 		 pixman_region32_t *clip,
 		 pixman_image_t    *destination,
-		 pixman_image_t    *source1,
-		 ...)
+		 pixman_image_t   **sources)
 {
+    int n_rects;
+    pixman_box32_t *boxes;
+
+    boxes = pixman_region32_rectangles (clip, &n_rects);
 
+    while (n_rects--)
+	run_box (boxes++, destination, program->instructions, sources);
 }
 
 void
diff --git a/psl.h b/psl.h
index 6e6b865..79e8dc1 100644
--- a/psl.h
+++ b/psl.h
@@ -45,10 +45,9 @@ psl_instruction_t *psl_cmp_lt	       (psl_var_t	  *dest,
 psl_instruction_t *psl_label	       (const char        *name);
 psl_statement_t *  psl_asm             (psl_instruction_t *instruction,
 					...);
-void               psl_program_run     (psl_program_t     *program,
-					pixman_region32_t *clip,
-					pixman_image_t    *destination,
-					pixman_image_t    *source1,
-					...);
+void               psl_program_run     (psl_program_t      *program,
+					pixman_region32_t  *clip,
+					pixman_image_t     *destination,
+					pixman_image_t    **sources);
 void               psl_program_destroy (psl_program_t     *program);