Add preliminary array format support.

3 files changed, 57 insertions, 1 deletions

diff --git a/epilogue.c b/epilogue.c
index e2837f3..6b144c4 100644
--- a/epilogue.c
+++ b/epilogue.c
@@ -9,6 +9,51 @@ __GLXextFuncPtr glXGetProcAddress(const GLubyte *name)
 	return glXGetProcAddressARB(name);
 }
 
+typedef struct 
+{
+	struct
+	{
+		GLenum type;
+		GLint num_components;
+		GLint enabled;
+	}
+	attrib[16];
+}
+vertex_array_format;
+
+static void vertex_array_get_format(vertex_array_format* f)
+{
+	int a;
+	for(a = 0 ; a < 16 ; a++)
+	{
+		glGetVertexAttribiv(a, GL_VERTEX_ATTRIB_ARRAY_ENABLED, &f->attrib[a].enabled);
+		if (f->attrib[a].enabled)
+		{
+			glGetVertexAttribiv(a, GL_VERTEX_ATTRIB_ARRAY_SIZE, &f->attrib[a].num_components);
+			glGetVertexAttribiv(a, GL_VERTEX_ATTRIB_ARRAY_TYPE, &f->attrib[a].type);
+			printf("attrib %d %d %x\n",a,f->attrib[a].num_components,f->attrib[a].type);
+		}
+		else
+		{
+			f->attrib[a].num_components = 0;
+			f->attrib[a].type = 0;
+		}
+	}
+}
+
+static void vertex_array_add(vertex_array_format* f, int num)
+{
+}
+
+static void add_array(int num_elements)
+{
+	vertex_array_format f;
+	vertex_array_get_format(&f);
+	vertex_array_add(&f, num_elements);
+}
+
+
+
 static void (*rtld_fini_func)(void);
 
 static int compare(const void* a, const void* b)
diff --git a/gen.c b/gen.c
index 3c22c7a..0d1a5b1 100644
--- a/gen.c
+++ b/gen.c
@@ -424,6 +424,13 @@ int main()
 
 					// generate the function body
 
+					if (!strcmp(func_name,"DrawArrays"))
+						fprintf(file_wrapped,"\tadd_array(count);\n");
+					if (!strcmp(func_name,"DrawElements"))
+						fprintf(file_wrapped,"\tadd_array(count);\n");
+					if (!strcmp(func_name,"ArrayElement"))
+						fprintf(file_wrapped,"\tadd_array(1);\n");
+					
 					fprintf(file_wrapped,"\tuint64_t before, after;\n");
 					fprintf(file_wrapped,"\tif (trace_perfunc) {\n");
 					fprintf(file_wrapped,"\t\tprintf(\"gl%s\\n\");\n",func_name);
diff --git a/prologue.c b/prologue.c
index 513ef80..8863af0 100644
--- a/prologue.c
+++ b/prologue.c
@@ -20,8 +20,10 @@ static PFNGLXGETPROCADDRESSPROC lib_glXGetProcAddressARB;
 static const int trace_perfunc = 0;
 // dump the total time per function
 static const int trace_summary = 1;
-// dump the shader programs²
+// dump the shader programs
 static const int trace_shaders = 0;
+// trace vertex array performance
+static const int trace_arrays = 0;
 
 static uint64_t gettime64()
 {
@@ -30,4 +32,6 @@ static uint64_t gettime64()
 	return ((uint64_t)tv.tv_sec * 1000000ULL + (uint64_t)tv.tv_usec);
 }
 
+static void add_array(int num_elements);
+