+++ /dev/null
-/* Gacela, a GNU Guile extension for fast games development
- Copyright (C) 2009 by Javier Sancho Fernandez <jsf at jsancho dot org>
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include <libguile.h>
-#include <GL/gl.h>
-#include <GL/glu.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);
-}
-
-SCM
-set_glTexture_size (SCM glTexture_smob, SCM width, SCM height)
-{
- struct glTexture *glTexture;
-
- scm_assert_smob_type (glTexture_tag, glTexture_smob);
- glTexture = (struct glTexture *) SCM_SMOB_DATA (glTexture_smob);
- glTexture->width = scm_to_int (width);
- glTexture->height = scm_to_int (height);
- return SCM_UNSPECIFIED;
-}
-
-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)
-{
- glBegin (scm_to_int (mode));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glClear (SCM mask)
-{
- glClear (scm_to_int (mask));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glClearColor (SCM red, SCM green, SCM blue, SCM alpha)
-{
- glClearColor (scm_to_double (red), scm_to_double (green), scm_to_double (blue), scm_to_double (alpha));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glClearDepth (SCM depth)
-{
- glClearDepth (scm_to_double (depth));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glColor3f (SCM red, SCM green, SCM blue)
-{
- glColor3f (scm_to_double (red), scm_to_double (green), scm_to_double (blue));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glColor4f (SCM red, SCM green, SCM blue, SCM alpha)
-{
- glColor4f (scm_to_double (red), scm_to_double (green), scm_to_double (blue), scm_to_double (alpha));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glDepthFunc (SCM func)
-{
- glDepthFunc (scm_to_int (func));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glEnable (SCM cap)
-{
- glEnable (scm_to_int (cap));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glDisable (SCM cap)
-{
- glDisable (scm_to_int (cap));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glEnd (void)
-{
- glEnd ();
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glHint (SCM target, SCM mode)
-{
- glHint (scm_to_int (target), scm_to_int (mode));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glLoadIdentity (void)
-{
- glLoadIdentity ();
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glMatrixMode (SCM mode)
-{
- glMatrixMode (scm_to_int (mode));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glRotatef (SCM angle, SCM x, SCM y, SCM z)
-{
- glRotatef (scm_to_double (angle), scm_to_double (x), scm_to_double (y), scm_to_double (z));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glShadeModel (SCM mode)
-{
- glShadeModel (scm_to_int (mode));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glTranslatef (SCM x, SCM y, SCM z)
-{
- glTranslatef (scm_to_double (x), scm_to_double (y), scm_to_double (z));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glVertex2f (SCM x, SCM y)
-{
- glVertex2f (scm_to_double (x), scm_to_double (y));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glVertex3f (SCM x, SCM y, SCM z)
-{
- glVertex3f (scm_to_double (x), scm_to_double (y), scm_to_double (z));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glViewport (SCM x, SCM y, SCM width, SCM height)
-{
- glViewport (scm_to_int (x), scm_to_int (y), scm_to_int (width), scm_to_int (height));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glGenTextures (SCM n)
-{
- SCM textures;
- int nint = scm_to_int (n);
- GLuint text[nint];
- int i;
-
- textures = scm_list_n (SCM_UNDEFINED);
- glGenTextures (nint, &text[0]);
-
- for (i = nint - 1; i >= 0; i--) {
- textures = scm_cons (make_glTexture (text[i]), textures);
- }
-
- return textures;
-}
-
-SCM
-gacela_glDeleteTextures (SCM n, SCM textures)
-{
- int nint = scm_to_int (n);
- GLuint text[nint];
- int i;
-
- for (i = 0; i < nint; i++) {
- text[i] = scm_to_int (scm_list_ref (textures, scm_from_int (i)));
- }
-
- glDeleteTextures (nint, &text[0]);
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glBindTexture (SCM target, SCM texture)
-{
- glBindTexture (scm_to_int (target), get_glTexture_id (texture));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glTexImage2D (SCM target, SCM level, SCM internalFormat, SCM width, SCM height, SCM border, SCM format, SCM type, SCM pixels)
-{
- glTexImage2D (scm_to_int (target), scm_to_int (level), scm_to_int (internalFormat), scm_to_int (width), \
- scm_to_int (height), scm_to_int (border), scm_to_int (format), scm_to_int (type), \
- (GLvoid *)scm_to_int (pixels));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glTexParameteri (SCM target, SCM pname, SCM param)
-{
- glTexParameteri (scm_to_int (target), scm_to_int (pname), scm_to_int (param));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glTexCoord2f (SCM s, SCM t)
-{
- glTexCoord2f (scm_to_double (s), scm_to_double (t));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glLightfv (SCM light, SCM pname, SCM params)
-{
- int n = scm_to_int (scm_length (params));
- GLfloat gl_params[n];
- int i;
-
- for (i = 0; i < n; i++) {
- gl_params[i] = scm_to_double (scm_list_ref (params, scm_from_int (i)));
- }
-
- glLightfv (scm_to_int (light), scm_to_int (pname), gl_params);
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glNormal3f (SCM nx, SCM ny, SCM nz)
-{
- glNormal3f (scm_to_double (nx), scm_to_double (ny), scm_to_double (nz));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glBlendFunc (SCM sfactor, SCM dfactor)
-{
- glBlendFunc (scm_to_int (sfactor), scm_to_int (dfactor));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glOrtho (SCM left, SCM right, SCM bottom, SCM top, SCM near_val, SCM far_val)
-{
- glOrtho (scm_to_double (left), scm_to_double (right), scm_to_double (bottom), scm_to_double (top), \
- scm_to_double (near_val), scm_to_double (far_val));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glPushMatrix (void)
-{
- glPushMatrix ();
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_glPopMatrix (void)
-{
- glPopMatrix ();
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_gluPerspective (SCM fovy, SCM aspect, SCM zNear, SCM zFar)
-{
- gluPerspective (scm_to_double (fovy), scm_to_double (aspect), scm_to_double (zNear), scm_to_double (zFar));
- return SCM_UNSPECIFIED;
-}
-
-SCM
-gacela_gluBuild2DMipmaps (SCM target, SCM internalFormat, SCM width, SCM height, SCM format, SCM type, SCM data)
-{
- return scm_from_int (gluBuild2DMipmaps (scm_to_int (target), scm_to_int (internalFormat), scm_to_int (width), \
- scm_to_int (height), scm_to_int (format), scm_to_int (type), \
- (void *)scm_to_int (data)));
-}
-
-SCM
-gacela_gluLookAt (SCM eyeX, SCM eyeY, SCM eyeZ, SCM centerX, SCM centerY, SCM centerZ, SCM upX, SCM upY, SCM upZ)
-{
- gluLookAt (scm_to_double (eyeX), scm_to_double (eyeY), scm_to_double (eyeZ), \
- scm_to_double (centerX), scm_to_double (centerY), scm_to_double (centerZ), \
- scm_to_double (upX), scm_to_double (upY), scm_to_double (upZ));
- return SCM_UNSPECIFIED;
-}
-
-
-void
-init_gacela_gl (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);
- scm_c_define_gsubr ("set-texture-size!", 3, 0, 0, set_glTexture_size);
-
- // Data types
- scm_c_define ("GL_UNSIGNED_BYTE", scm_from_int (GL_UNSIGNED_BYTE));
-
- // Primitives
- scm_c_define ("GL_POINTS", scm_from_int (GL_POINTS));
- scm_c_define ("GL_LINES", scm_from_int (GL_LINES));
- scm_c_define ("GL_LINE_LOOP", scm_from_int (GL_LINE_LOOP));
- scm_c_define ("GL_LINE_STRIP", scm_from_int (GL_LINE_STRIP));
- scm_c_define ("GL_TRIANGLES", scm_from_int (GL_TRIANGLES));
- scm_c_define ("GL_TRIANGLE_STRIP", scm_from_int (GL_TRIANGLE_STRIP));
- scm_c_define ("GL_TRIANGLE_FAN", scm_from_int (GL_TRIANGLE_FAN));
- scm_c_define ("GL_QUADS", scm_from_int (GL_QUADS));
- scm_c_define ("GL_QUAD_STRIP", scm_from_int (GL_QUAD_STRIP));
- scm_c_define ("GL_POLYGON", scm_from_int (GL_POLYGON));
-
- // Matrix Mode
- scm_c_define ("GL_MODELVIEW", scm_from_int (GL_MODELVIEW));
- scm_c_define ("GL_PROJECTION", scm_from_int (GL_PROJECTION));
-
- // Depth buffer
- scm_c_define ("GL_LEQUAL", scm_from_int (GL_LEQUAL));
- scm_c_define ("GL_DEPTH_TEST", scm_from_int (GL_DEPTH_TEST));
-
- // Lighting
- scm_c_define ("GL_LIGHTING", scm_from_int (GL_LIGHTING));
- scm_c_define ("GL_LIGHT1", scm_from_int (GL_LIGHT1));
- scm_c_define ("GL_AMBIENT", scm_from_int (GL_AMBIENT));
- scm_c_define ("GL_DIFFUSE", scm_from_int (GL_DIFFUSE));
- scm_c_define ("GL_POSITION", scm_from_int (GL_POSITION));
- scm_c_define ("GL_SMOOTH", scm_from_int (GL_SMOOTH));
-
- // Blending
- scm_c_define ("GL_BLEND", scm_from_int (GL_BLEND));
- scm_c_define ("GL_ONE", scm_from_int (GL_ONE));
- scm_c_define ("GL_ONE_MINUS_SRC_ALPHA", scm_from_int (GL_ONE_MINUS_SRC_ALPHA));
- scm_c_define ("GL_SRC_ALPHA", scm_from_int (GL_SRC_ALPHA));
-
- // Fog
- scm_c_define ("GL_LINEAR", scm_from_int (GL_LINEAR));
-
- // Buffers, Pixel Drawing/Reading
- scm_c_define ("GL_RGB", scm_from_int (GL_RGB));
- scm_c_define ("GL_RGBA", scm_from_int (GL_RGBA));
-
- // Hints
- scm_c_define ("GL_PERSPECTIVE_CORRECTION_HINT", scm_from_int (GL_PERSPECTIVE_CORRECTION_HINT));
- scm_c_define ("GL_NICEST", scm_from_int (GL_NICEST));
-
- // Texture mapping
- scm_c_define ("GL_TEXTURE_2D", scm_from_int (GL_TEXTURE_2D));
- scm_c_define ("GL_TEXTURE_MAG_FILTER", scm_from_int (GL_TEXTURE_MAG_FILTER));
- scm_c_define ("GL_TEXTURE_MIN_FILTER", scm_from_int (GL_TEXTURE_MIN_FILTER));
- scm_c_define ("GL_LINEAR_MIPMAP_NEAREST", scm_from_int (GL_LINEAR_MIPMAP_NEAREST));
- scm_c_define ("GL_NEAREST", scm_from_int (GL_NEAREST));
-
- // glPush/PopAttrib bits
- scm_c_define ("GL_DEPTH_BUFFER_BIT", scm_from_int (GL_DEPTH_BUFFER_BIT));
- scm_c_define ("GL_COLOR_BUFFER_BIT", scm_from_int (GL_COLOR_BUFFER_BIT));
-
- // OpenGL 1.2
- scm_c_define ("GL_BGR", scm_from_int (GL_BGR));
- scm_c_define ("GL_BGRA", scm_from_int (GL_BGRA));
-
-
- scm_c_define_gsubr ("glBegin", 1, 0, 0, gacela_glBegin);
- scm_c_define_gsubr ("glClear", 1, 0, 0, gacela_glClear);
- scm_c_define_gsubr ("glClearColor", 4, 0, 0, gacela_glClearColor);
- scm_c_define_gsubr ("glClearDepth", 1, 0, 0, gacela_glClearDepth);
- scm_c_define_gsubr ("glColor3f", 3, 0, 0, gacela_glColor3f);
- scm_c_define_gsubr ("glColor4f", 4, 0, 0, gacela_glColor4f);
- scm_c_define_gsubr ("glDepthFunc", 1, 0, 0, gacela_glDepthFunc);
- scm_c_define_gsubr ("glEnable", 1, 0, 0, gacela_glEnable);
- scm_c_define_gsubr ("glDisable", 1, 0, 0, gacela_glDisable);
- scm_c_define_gsubr ("glEnd", 0, 0, 0, gacela_glEnd);
- scm_c_define_gsubr ("glHint", 2, 0, 0, gacela_glHint);
- scm_c_define_gsubr ("glLoadIdentity", 0, 0, 0, gacela_glLoadIdentity);
- scm_c_define_gsubr ("glMatrixMode", 1, 0, 0, gacela_glMatrixMode);
- scm_c_define_gsubr ("glRotatef", 4, 0, 0, gacela_glRotatef);
- scm_c_define_gsubr ("glShadeModel", 1, 0, 0, gacela_glShadeModel);
- scm_c_define_gsubr ("glTranslatef", 3, 0, 0, gacela_glTranslatef);
- scm_c_define_gsubr ("glVertex2f", 2, 0, 0, gacela_glVertex2f);
- scm_c_define_gsubr ("glVertex3f", 3, 0, 0, gacela_glVertex3f);
- scm_c_define_gsubr ("glViewport", 4, 0, 0, gacela_glViewport);
- scm_c_define_gsubr ("glGenTextures", 1, 0, 0, gacela_glGenTextures);
- scm_c_define_gsubr ("glDeleteTextures", 2, 0, 0, gacela_glDeleteTextures);
- scm_c_define_gsubr ("glBindTexture", 2, 0, 0, gacela_glBindTexture);
- scm_c_define_gsubr ("glTexImage2D", 9, 0, 0, gacela_glTexImage2D);
- scm_c_define_gsubr ("glTexParameteri", 3, 0, 0, gacela_glTexParameteri);
- scm_c_define_gsubr ("glTexCoord2f", 2, 0, 0, gacela_glTexCoord2f);
- scm_c_define_gsubr ("glLightfv", 3, 0, 0, gacela_glLightfv);
- scm_c_define_gsubr ("glNormal3f", 3, 0, 0, gacela_glNormal3f);
- scm_c_define_gsubr ("glBlendFunc", 2, 0, 0, gacela_glBlendFunc);
- scm_c_define_gsubr ("glOrtho", 6, 0, 0, gacela_glOrtho);
- scm_c_define_gsubr ("glPushMatrix", 0, 0, 0, gacela_glPushMatrix);
- scm_c_define_gsubr ("glPopMatrix", 0, 0, 0, gacela_glPopMatrix);
-
- scm_c_define_gsubr ("gluPerspective", 4, 0, 0, gacela_gluPerspective);
- scm_c_define_gsubr ("gluBuild2DMipmaps", 7, 0, 0, gacela_gluBuild2DMipmaps);
- scm_c_define_gsubr ("gluLookAt", 9, 0, 0, gacela_gluLookAt);
-}
-
-void
-scm_init_gacela_gl ()
-{
- init_gacela_gl (NULL);
-}
projects / gacela.git / blobdiff