2ff4100849
This is the first patch to implement a fbo/tex pool mechanism which is like the sna's BO cache list. We firstly need to decopule the fbo/tex from each pixmap. The new glamor_pixmap_fbo data structure is for that purpose. It's somehow independent to each pixmap and can be reused latter by other pixmaps once it's detached from the current pixmap. And this commit also slightly change the way to create a memory pixmap. We will not create a pixmap private data structure by default, instead we will crete that structure when a memory pixmap is attaching a fbo to it. Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
133 lines
3.0 KiB
C
133 lines
3.0 KiB
C
#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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