GPUTexture *GPU_texture_from_preview(PreviewImage *prv, int mipmap)
{
GPUTexture *tex = prv->gputexture[0];
GLint w, h, lastbindcode;
GLuint bindcode = 0;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &lastbindcode);
if (tex)
bindcode = tex->bindcode;
/* this binds a texture, so that's why to restore it */
if (bindcode == 0) {
GPU_create_gl_tex(&bindcode, prv->rect[0], NULL, prv->w[0], prv->h[0], mipmap, 0, NULL);
}
if (tex) {
tex->bindcode = bindcode;
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return tex;
}
/* error binding anything */
if (!bindcode) {
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return NULL;
}
tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture");
tex->bindcode = bindcode;
tex->number = -1;
tex->refcount = 1;
tex->target = GL_TEXTURE_2D;
prv->gputexture[0]= tex;
if (!glIsTexture(tex->bindcode)) {
GPU_print_error("Blender Texture");
}
else {
glBindTexture(GL_TEXTURE_2D, tex->bindcode);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
tex->w = w;
tex->h = h;
}
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return tex;
}
GPUTexture *GPU_texture_from_preview(PreviewImage *prv, int mipmap)
{
GPUTexture *tex = prv->gputexture[0];
GLuint bindcode = 0;
if (tex)
bindcode = tex->bindcode;
/* this binds a texture, so that's why we restore it to 0 */
if (bindcode == 0) {
GPU_create_gl_tex(&bindcode, prv->rect[0], NULL, prv->w[0], prv->h[0], GL_TEXTURE_2D, mipmap, 0, NULL);
}
if (tex) {
tex->bindcode = bindcode;
glBindTexture(GL_TEXTURE_2D, 0);
return tex;
}
tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture");
tex->bindcode = bindcode;
tex->number = -1;
tex->refcount = 1;
tex->target = GL_TEXTURE_2D;
tex->target_base = GL_TEXTURE_2D;
prv->gputexture[0] = tex;
if (!glIsTexture(tex->bindcode)) {
GPU_ASSERT_NO_GL_ERRORS("Blender Texture Not Loaded");
}
else {
GLint w, h;
glBindTexture(GL_TEXTURE_2D, tex->bindcode);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
tex->w = w;
tex->h = h;
}
glBindTexture(GL_TEXTURE_2D, 0);
return tex;
}
static int rna_Image_gl_load(Image *image, ReportList *reports, int frame, int filter, int mag)
{
ImBuf *ibuf;
unsigned int *bind = &image->bindcode;
int error = GL_NO_ERROR;
ImageUser iuser = {NULL};
void *lock;
if (*bind)
return error;
iuser.framenr = frame;
iuser.ok = true;
ibuf = BKE_image_acquire_ibuf(image, &iuser, &lock);
/* clean glError buffer */
while (glGetError() != GL_NO_ERROR) {}
if (ibuf == NULL || ibuf->rect == NULL) {
BKE_reportf(reports, RPT_ERROR, "Image '%s' does not have any image data", image->id.name + 2);
BKE_image_release_ibuf(image, ibuf, NULL);
return (int)GL_INVALID_OPERATION;
}
GPU_create_gl_tex(bind, ibuf->rect, ibuf->rect_float, ibuf->x, ibuf->y,
(filter != GL_NEAREST && filter != GL_LINEAR), false, image);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (GLint)filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (GLint)mag);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
error = glGetError();
if (error) {
glDeleteTextures(1, (GLuint *)bind);
image->bindcode = 0;
}
BKE_image_release_ibuf(image, ibuf, NULL);
return error;
}
