#include <GL/glu.h>
#include "gacela_GL.h"
+
+struct glTexture
+{
+ GLuint texture_id;
+ int width, height;
+};
+
+static scm_t_bits glTexture_tag;
+
+SCM
+make_glTexture (GLuint texture_id)
+{
+ SCM smob;
+ struct glTexture *glTexture;
+
+ glTexture = (struct glTexture *) scm_gc_malloc (sizeof (struct glTexture), "glTexture");
+
+ glTexture->texture_id = 0;
+
+ SCM_NEWSMOB (smob, glTexture_tag, glTexture);
+
+ glTexture->texture_id = texture_id;
+
+ return smob;
+}
+
+GLuint
+get_glTexture_id (SCM glTexture_smob)
+{
+ struct glTexture *glTexture;
+
+ scm_assert_smob_type (glTexture_tag, glTexture_smob);
+ glTexture = (struct glTexture *) SCM_SMOB_DATA (glTexture_smob);
+ return glTexture->texture_id;
+}
+
+SCM
+get_glTexture_width (SCM glTexture_smob)
+{
+ struct glTexture *glTexture;
+
+ scm_assert_smob_type (glTexture_tag, glTexture_smob);
+ glTexture = (struct glTexture *) SCM_SMOB_DATA (glTexture_smob);
+ return scm_from_int (glTexture->width);
+}
+
+SCM
+get_glTexture_height (SCM glTexture_smob)
+{
+ struct glTexture *glTexture;
+
+ scm_assert_smob_type (glTexture_tag, glTexture_smob);
+ glTexture = (struct glTexture *) SCM_SMOB_DATA (glTexture_smob);
+ return scm_from_int (glTexture->height);
+}
+
+size_t
+free_glTexture (SCM glTexture_smob)
+{
+ struct glTexture *glTexture = (struct glTexture *) SCM_SMOB_DATA (glTexture_smob);
+ GLuint text[1];
+
+ text[0] = glTexture->texture_id;
+ glDeleteTextures (1, &text[0]);
+ scm_gc_free (glTexture, sizeof (struct glTexture), "glTexture");
+
+ return 0;
+}
+
+
SCM
gacela_glBegin (SCM mode)
{
SCM
gacela_glBindTexture (SCM target, SCM texture)
{
- glBindTexture (scm_to_int (target), scm_to_int (texture));
+ glBindTexture (scm_to_int (target), get_glTexture_id (texture));
return SCM_UNSPECIFIED;
}
void*
GL_register_functions (void* data)
{
+ glTexture_tag = scm_make_smob_type ("glTexture", sizeof (struct glTexture));
+ scm_set_smob_free (glTexture_tag, free_glTexture);
+ scm_c_define_gsubr ("texture-w", 1, 0, 0, get_glTexture_width);
+ scm_c_define_gsubr ("texture-h", 1, 0, 0, get_glTexture_height);
+
// Data types
scm_c_define ("GL_UNSIGNED_BYTE", scm_from_int (GL_UNSIGNED_BYTE));