133 lines
3.0 KiB
C
133 lines
3.0 KiB
C
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <stdlib.h>
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#include "glamor_priv.h"
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glamor_pixmap_fbo *
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glamor_create_fbo_from_tex(glamor_screen_private *glamor_priv,
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int w, int h, int depth, GLint tex, int flag)
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{
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glamor_gl_dispatch *dispatch;
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glamor_pixmap_fbo *fbo;
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GLenum format;
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fbo = calloc(1, sizeof(*fbo));
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if (fbo == NULL)
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return NULL;
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gl_iformat_for_depth(depth, &format);
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fbo->tex = tex;
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fbo->width = w;
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fbo->height = h;
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fbo->format = format;
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fbo->glamor_priv = glamor_priv;
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glamor_pixmap_ensure_fb(fbo);
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return fbo;
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}
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/* Make sure already detached from any pixmap. */
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void
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glamor_destroy_fbo(glamor_pixmap_fbo *fbo)
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{
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glamor_gl_dispatch *dispatch = &fbo->glamor_priv->dispatch;
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DEBUGF("Destroy fbo %p tex %d fb %d \n", fbo, fbo->tex, fbo->fb);
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if (fbo->fb)
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dispatch->glDeleteFramebuffers(1, &fbo->fb);
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if (fbo->tex)
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dispatch->glDeleteTextures(1, &fbo->tex);
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if (fbo->pbo)
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dispatch->glDeleteBuffers(1, &fbo->pbo);
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free(fbo);
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}
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glamor_pixmap_fbo *
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glamor_create_fbo(glamor_screen_private *glamor_priv,
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int w, int h, int depth, int flag)
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{
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glamor_gl_dispatch *dispatch;
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glamor_pixmap_fbo *fbo;
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GLenum format;
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GLint tex;
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gl_iformat_for_depth(depth, &format);
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dispatch = &glamor_priv->dispatch;
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dispatch->glGenTextures(1, &tex);
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dispatch->glBindTexture(GL_TEXTURE_2D, tex);
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dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
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GL_NEAREST);
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dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
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GL_NEAREST);
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dispatch->glTexImage2D(GL_TEXTURE_2D, 0, format, w, h, 0, format,
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GL_UNSIGNED_BYTE, NULL);
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fbo = glamor_create_fbo_from_tex(glamor_priv, w, h, depth, tex, flag);
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DEBUGF("Creat fbo %p tex %d width %d height %d \n", fbo, tex, w, h);
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return fbo;
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}
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glamor_pixmap_fbo *
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glamor_pixmap_detach_fbo(glamor_pixmap_private *pixmap_priv)
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{
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glamor_pixmap_fbo *fbo;
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if (pixmap_priv == NULL)
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return NULL;
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fbo = pixmap_priv->fbo;
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if (fbo == NULL)
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return NULL;
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pixmap_priv->fbo = NULL;
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return fbo;
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}
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/* The pixmap must not be attached to another fbo. */
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void
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glamor_pixmap_attach_fbo(PixmapPtr pixmap, glamor_pixmap_fbo *fbo)
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{
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glamor_pixmap_private *pixmap_priv;
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pixmap_priv = glamor_get_pixmap_private(pixmap);
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if (pixmap_priv == NULL) {
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glamor_screen_private *glamor_priv;
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glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
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pixmap_priv = calloc(1, sizeof(*pixmap_priv));
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dixSetPrivate(&pixmap->devPrivates,
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glamor_pixmap_private_key, pixmap_priv);
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pixmap_priv->container = pixmap;
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pixmap_priv->glamor_priv = glamor_priv;
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pixmap_priv->type = GLAMOR_MEMORY;
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}
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if (pixmap_priv->fbo)
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return;
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pixmap_priv->fbo = fbo;
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switch (pixmap_priv->type) {
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case GLAMOR_TEXTURE_ONLY:
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case GLAMOR_TEXTURE_DRM:
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pixmap_priv->gl_fbo = 1;
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if (fbo->tex != 0)
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pixmap_priv->gl_tex = 1;
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else {
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/* XXX For the Xephyr only, may be broken now.*/
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pixmap_priv->gl_tex = 0;
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}
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pixmap->devPrivate.ptr = NULL;
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break;
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default:
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break;
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}
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}
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