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-rw-r--r--lib/wx/c_src/egl_impl.cpp135
1 files changed, 75 insertions, 60 deletions
diff --git a/lib/wx/c_src/egl_impl.cpp b/lib/wx/c_src/egl_impl.cpp
index 1379f07523..a55a145934 100644
--- a/lib/wx/c_src/egl_impl.cpp
+++ b/lib/wx/c_src/egl_impl.cpp
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2011. All Rights Reserved.
+ * Copyright Ericsson AB 2011-2013. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -169,33 +169,34 @@ void gl_error() {
* ******************************************************************************/
static GLUtesselator* tess;
-static GLdouble* tess_coords;
-static GLdouble* tess_alloc_vertex;
-static int* tess_vertices;
-void CALLBACK
-egl_ogla_vertex(GLdouble* coords)
-{
- /* fprintf(stderr, "%d\r\n", (int) (coords - tess_coords) / 3); */
+typedef struct {
+ GLdouble * tess_coords;
+ int alloc_n;
+ int alloc_max;
- *tess_vertices++ = (int) (coords - tess_coords) / 3;
-}
+ int * tess_index_list;
+ int index_n;
+ int index_max;
-void CALLBACK
-egl_ogla_edge_flag(GLboolean flag)
-{
-}
+ int error;
+} egl_tess_data;
+
+#define NEED_MORE_ALLOC 1
+#define NEED_MORE_INDEX 2
+
+static egl_tess_data egl_tess;
void CALLBACK
-egl_ogla_error(GLenum errorCode)
+egl_ogla_vertex(GLdouble* coords)
{
- const GLubyte *err;
- err = gluErrorString(errorCode);
- // wxString msg;
- // msg.Printf(wxT("Tesselation error: %d: "), (int)errorCode);
- // msg += wxString::FromAscii((char *) err);
- // send_msg("error", &msg);
- fprintf(stderr, "Tesselation error: %d: %s\r\n", (int) errorCode, err);
+ /* fprintf(stderr, "%d\r\n", (int) (coords - tess_coords) / 3); */
+ if(egl_tess.index_n < egl_tess.index_max) {
+ egl_tess.tess_index_list[egl_tess.index_n] = (int) (coords - egl_tess.tess_coords) / 3;
+ egl_tess.index_n++;
+ }
+ else
+ egl_tess.error = NEED_MORE_INDEX;
}
void CALLBACK
@@ -204,26 +205,43 @@ egl_ogla_combine(GLdouble coords[3],
GLfloat w[4],
void **dataOut)
{
- GLdouble* vertex = tess_alloc_vertex;
-
- tess_alloc_vertex += 3;
+ GLdouble* vertex = &egl_tess.tess_coords[egl_tess.alloc_n];
+ if(egl_tess.alloc_n < egl_tess.alloc_max) {
+ egl_tess.alloc_n += 3;
+ vertex[0] = coords[0];
+ vertex[1] = coords[1];
+ vertex[2] = coords[2];
+ *dataOut = vertex;
#if 0
- fprintf(stderr, "combine: ");
- int i;
- for (i = 0; i < 4; i++) {
- if (w[i] > 0.0) {
- fprintf(stderr, "%d(%g) ", (int) vertex_data[i], w[i]);
+ fprintf(stderr, "combine: ");
+ int i;
+ for (i = 0; i < 4; i++) {
+ if (w[i] > 0.0) {
+ fprintf(stderr, "%d(%g) ", (int) vertex_data[i], w[i]);
+ }
}
- }
- fprintf(stderr, "\r\n");
- fprintf(stderr, "%g %g %g\r\n", vertex[0], vertex[1], vertex[2]);
+ fprintf(stderr, "\r\n");
+ fprintf(stderr, "%g %g %g\r\n", vertex[0], vertex[1], vertex[2]);
#endif
- vertex[0] = coords[0];
- vertex[1] = coords[1];
- vertex[2] = coords[2];
- *dataOut = vertex;
+ } else {
+ egl_tess.error = NEED_MORE_ALLOC;
+ *dataOut = NULL;
+ }
+}
+
+void CALLBACK
+egl_ogla_edge_flag(GLboolean flag)
+{
+}
+
+void CALLBACK
+egl_ogla_error(GLenum errorCode)
+{
+ // const GLubyte *err;
+ // err = gluErrorString(errorCode);
+ // fprintf(stderr, "Tesselation error: %d: %s\r\n", (int) errorCode, err);
}
void init_tess()
@@ -246,49 +264,46 @@ int erl_tess_impl(char* buff, ErlDrvPort port, ErlDrvTermData caller)
{
ErlDrvBinary* bin;
int i;
- GLdouble* new_vertices;
- int *vertices;
int num_vertices;
GLdouble *n;
- int n_pos, AP;
-
+ int AP;
+ int a_max = 2;
+ int i_max = 6;
num_vertices = * (int *) buff; buff += 8; /* Align */
n = (double *) buff; buff += 8*3;
- bin = driver_alloc_binary(num_vertices*6*sizeof(GLdouble));
- new_vertices = tess_coords = (double *) bin->orig_bytes;
- memcpy(tess_coords,buff,num_vertices*3*sizeof(GLdouble));
- tess_alloc_vertex = tess_coords + num_vertices*3;
+ egl_tess.alloc_max = a_max*num_vertices*3;
+ bin = driver_alloc_binary(egl_tess.alloc_max*sizeof(GLdouble));
+ egl_tess.error = 0;
+ egl_tess.tess_coords = (double *) bin->orig_bytes;
+ memcpy(egl_tess.tess_coords,buff,num_vertices*3*sizeof(GLdouble));
+ egl_tess.index_max = i_max*3*num_vertices;
+ egl_tess.tess_index_list = (int *) driver_alloc(sizeof(int) * egl_tess.index_max);
-#if 0
- fprintf(stderr, "n=%d\r\n", num_vertices);
-#endif
- vertices = (int *) driver_alloc(sizeof(int) * 16*num_vertices);
-
- tess_vertices = vertices;
+ egl_tess.tess_coords = (double *) bin->orig_bytes;
+ egl_tess.index_n = 0;
+ egl_tess.alloc_n = num_vertices*3;
gluTessNormal(tess, n[0], n[1], n[2]);
gluTessBeginPolygon(tess, 0);
gluTessBeginContour(tess);
for (i = 0; i < num_vertices; i++) {
- gluTessVertex(tess, tess_coords+3*i, tess_coords+3*i);
+ gluTessVertex(tess, egl_tess.tess_coords+3*i, egl_tess.tess_coords+3*i);
}
gluTessEndContour(tess);
gluTessEndPolygon(tess);
- n_pos = (tess_vertices - vertices);
-
AP = 0; ErlDrvTermData *rt;
- rt = (ErlDrvTermData *) driver_alloc(sizeof(ErlDrvTermData) * (13+n_pos*2));
+ rt = (ErlDrvTermData *) driver_alloc(sizeof(ErlDrvTermData) * (13+egl_tess.index_n*2));
rt[AP++]=ERL_DRV_ATOM; rt[AP++]=driver_mk_atom((char *) "_egl_result_");
- for(i=0; i < n_pos; i++) {
- rt[AP++] = ERL_DRV_INT; rt[AP++] = (int) vertices[i];
+ for(i=0; i < egl_tess.index_n; i++) {
+ rt[AP++] = ERL_DRV_INT; rt[AP++] = (int) egl_tess.tess_index_list[i];
};
- rt[AP++] = ERL_DRV_NIL; rt[AP++] = ERL_DRV_LIST; rt[AP++] = n_pos+1;
+ rt[AP++] = ERL_DRV_NIL; rt[AP++] = ERL_DRV_LIST; rt[AP++] = egl_tess.index_n+1;
rt[AP++] = ERL_DRV_BINARY; rt[AP++] = (ErlDrvTermData) bin;
- rt[AP++] = (tess_alloc_vertex-new_vertices)*sizeof(GLdouble); rt[AP++] = 0;
+ rt[AP++] = egl_tess.alloc_n*sizeof(GLdouble); rt[AP++] = 0;
rt[AP++] = ERL_DRV_TUPLE; rt[AP++] = 2; // Return tuple {list, Bin}
rt[AP++] = ERL_DRV_TUPLE; rt[AP++] = 2; // Result tuple
@@ -300,7 +315,7 @@ int erl_tess_impl(char* buff, ErlDrvPort port, ErlDrvTermData caller)
/* (tess_alloc_vertex-new_vertices)*sizeof(GLdouble), */
/* num_vertices*6*sizeof(GLdouble)); */
driver_free_binary(bin);
- driver_free(vertices);
+ driver_free(egl_tess.tess_index_list);
driver_free(rt);
return 0;
}
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