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glamor: add support for allocating linear buffers (v2)

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We need this for doing USB offload scenarios using glamor
and modesetting driver.

unfortunately only gbm in mesa 10.6 has support for the
linear API.

v1.1: fix bad define
v2: update the configure.ac test as per amdgpu. (Michel)
set linear bos to external to avoid cache. (Eric)

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2015-06-10 14:46:22 +10:00 committed by Dave Airlie
parent 5c55560538
commit ea0e4d752b
7 changed files with 23 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
configure.ac
View File

@ -2105,6 +2105,10 @@ if test "x$GLAMOR" = xyes; then
if test "x$GBM" = xyes; then
AC_DEFINE(GLAMOR_HAS_GBM, 1,
[Build glamor with GBM-based EGL support])
AC_CHECK_DECL(GBM_BO_USE_LINEAR,
[AC_DEFINE(GLAMOR_HAS_GBM_LINEAR, 1, [Have GBM_BO_USE_LINEAR])], [],
[#include <stdlib.h>
#include <gbm.h>])
fi
fi

3
glamor/glamor.h
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@ -142,7 +142,8 @@ extern _X_EXPORT void glamor_enable_dri3(ScreenPtr screen);
extern _X_EXPORT unsigned int glamor_egl_create_argb8888_based_texture(ScreenPtr
screen,
int w,
int h);
int h,
Bool linear);
extern _X_EXPORT int glamor_egl_dri3_fd_name_from_tex(ScreenPtr, PixmapPtr,
unsigned int, Bool,
CARD16 *, CARD32 *);

5
glamor/glamor_egl.c
View File

@ -187,7 +187,7 @@ glamor_egl_get_gbm_device(ScreenPtr screen)
}
unsigned int
glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h)
glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h, Bool linear)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
struct glamor_egl_screen_private *glamor_egl;
@ -200,6 +200,9 @@ glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h)
glamor_egl = glamor_egl_get_screen_private(scrn);
bo = gbm_bo_create(glamor_egl->gbm, w, h, GBM_FORMAT_ARGB8888,
#ifdef GLAMOR_HAS_GBM_LINEAR
(linear ? GBM_BO_USE_LINEAR : 0) |
#endif
GBM_BO_USE_RENDERING | GBM_BO_USE_SCANOUT);
if (!bo)
return 0;

2
glamor/glamor_egl_stubs.c
View File

@ -50,7 +50,7 @@ glamor_egl_dri3_fd_name_from_tex(ScreenPtr screen,
}
unsigned int
glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h)
glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h, Bool linear)
{
return 0;
}

13
glamor/glamor_fbo.c
View File

@ -228,6 +228,9 @@ glamor_create_fbo_from_tex(glamor_screen_private *glamor_priv,
fbo->external = FALSE;
fbo->format = format;
if (flag == CREATE_PIXMAP_USAGE_SHARED)
fbo->external = TRUE;
if (flag != GLAMOR_CREATE_FBO_NO_FBO) {
if (glamor_pixmap_ensure_fb(glamor_priv, fbo) != 0) {
glamor_purge_fbo(glamor_priv, fbo);
@ -313,7 +316,7 @@ glamor_destroy_fbo(glamor_screen_private *glamor_priv,
static int
_glamor_create_tex(glamor_screen_private *glamor_priv,
int w, int h, GLenum format)
int w, int h, GLenum format, Bool linear)
{
unsigned int tex = 0;
@ -323,7 +326,7 @@ _glamor_create_tex(glamor_screen_private *glamor_priv,
* an ARGB8888 based texture for us. */
if (glamor_priv->dri3_enabled && format == GL_RGBA) {
tex = glamor_egl_create_argb8888_based_texture(glamor_priv->screen,
w, h);
w, h, linear);
}
if (!tex) {
glamor_make_current(glamor_priv);
@ -344,14 +347,14 @@ glamor_create_fbo(glamor_screen_private *glamor_priv,
glamor_pixmap_fbo *fbo;
GLint tex = 0;
if (flag == GLAMOR_CREATE_FBO_NO_FBO)
if (flag == GLAMOR_CREATE_FBO_NO_FBO || flag == CREATE_PIXMAP_USAGE_SHARED)
goto new_fbo;
fbo = glamor_pixmap_fbo_cache_get(glamor_priv, w, h, format);
if (fbo)
return fbo;
new_fbo:
tex = _glamor_create_tex(glamor_priv, w, h, format);
tex = _glamor_create_tex(glamor_priv, w, h, format, flag == CREATE_PIXMAP_USAGE_SHARED);
fbo = glamor_create_fbo_from_tex(glamor_priv, w, h, format, tex, flag);
return fbo;
@ -531,7 +534,7 @@ glamor_pixmap_ensure_fbo(PixmapPtr pixmap, GLenum format, int flag)
if (!pixmap_priv->fbo->tex)
pixmap_priv->fbo->tex =
_glamor_create_tex(glamor_priv, pixmap->drawable.width,
pixmap->drawable.height, format);
pixmap->drawable.height, format, FALSE);
if (flag != GLAMOR_CREATE_FBO_NO_FBO && pixmap_priv->fbo->fb == 0)
if (glamor_pixmap_ensure_fb(glamor_priv, pixmap_priv->fbo) != 0)

2
hw/xwayland/xwayland-glamor.c
View File

@ -415,7 +415,7 @@ glamor_egl_dri3_fd_name_from_tex(ScreenPtr screen,
}
unsigned int
glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h)
glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h, Bool linear)
{
return 0;
}

3
include/dix-config.h.in
View File

@ -503,6 +503,9 @@
/* Build glamor's GBM-based EGL support */
#undef GLAMOR_HAS_GBM
/* Build glamor/gbm has linear support */
#undef GLAMOR_HAS_GBM_LINEAR
/* byte order */
#undef X_BYTE_ORDER