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glamor: Stop trying to store the pixmap's "format" in glamor_pixmap_fbo. 

"format" is a bit of a confused term (internalformat vs GL format),
and all we really needed was "is this GL_RED?"

Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Eric Anholt 2019-03-26 15:58:59 -07:00 committed by Adam Jackson
parent 1b2e224d7d
commit 34485be256
5 changed files with 9 additions and 18 deletions
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3
glamor/glamor.c
View File

@ -169,8 +169,7 @@ glamor_bind_texture(glamor_screen_private *glamor_priv, GLenum texture,
/* Is the operand a GL_RED fbo?
*/
if (glamor_fbo_red_is_alpha(glamor_priv, fbo)) {
if (fbo->is_red) {
/* If destination is also GL_RED, then preserve the bits in
* the R channel */

7
glamor/glamor_fbo.c
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@ -95,7 +95,7 @@ glamor_pixmap_ensure_fb(glamor_screen_private *glamor_priv,
glamor_pixmap_fbo *
glamor_create_fbo_from_tex(glamor_screen_private *glamor_priv,
int w, int h, GLenum format, GLint tex, int flag)
int w, int h, Bool is_red, GLint tex, int flag)
{
glamor_pixmap_fbo *fbo;
@ -106,7 +106,7 @@ glamor_create_fbo_from_tex(glamor_screen_private *glamor_priv,
fbo->tex = tex;
fbo->width = w;
fbo->height = h;
fbo->format = format;
fbo->is_red = is_red;
if (flag != GLAMOR_CREATE_FBO_NO_FBO) {
if (glamor_pixmap_ensure_fb(glamor_priv, fbo) != 0) {
@ -163,7 +163,8 @@ glamor_create_fbo(glamor_screen_private *glamor_priv,
if (!tex) /* Texture creation failed due to GL_OUT_OF_MEMORY */
return NULL;
return glamor_create_fbo_from_tex(glamor_priv, w, h, format, tex, flag);
return glamor_create_fbo_from_tex(glamor_priv, w, h, format == GL_RED,
tex, flag);
}
/**

13
glamor/glamor_priv.h
View File

@ -311,8 +311,7 @@ typedef struct glamor_pixmap_fbo {
GLuint fb; /**< GL FBO name */
int width; /**< width in pixels */
int height; /**< height in pixels */
GLenum format; /**< GL format used to create the texture. */
GLenum type; /**< GL type used to create the texture. */
Bool is_red;
} glamor_pixmap_fbo;
typedef struct glamor_pixmap_clipped_regions {
@ -527,7 +526,7 @@ glamor_pixmap_fbo *glamor_pixmap_detach_fbo(glamor_pixmap_private *
void glamor_pixmap_attach_fbo(PixmapPtr pixmap, glamor_pixmap_fbo *fbo);
glamor_pixmap_fbo *glamor_create_fbo_from_tex(glamor_screen_private *
glamor_priv, int w, int h,
GLenum format, GLint tex,
Bool is_red, GLint tex,
int flag);
glamor_pixmap_fbo *glamor_create_fbo(glamor_screen_private *glamor_priv, int w,
int h, GLenum format, int flag);
@ -542,14 +541,6 @@ static inline Bool glamor_picture_is_alpha(PicturePtr picture)
return picture->format == PICT_a1 || picture->format == PICT_a8;
}
/* Return whether 'fbo' is storing alpha bits in the red channel */
static inline Bool
glamor_fbo_red_is_alpha(glamor_screen_private *glamor_priv, glamor_pixmap_fbo *fbo)
{
/* True when the format is GL_RED (that can only happen when our one channel format is GL_RED */
return fbo->format == GL_RED;
}
/* Return whether 'picture' is storing alpha bits in the red channel */
static inline Bool
glamor_picture_red_is_alpha(PicturePtr picture)

2
glamor/glamor_render.c
View File

@ -529,7 +529,7 @@ glamor_set_composite_texture(glamor_screen_private *glamor_priv, int unit,
* sometimes get zero bits in the R channel, which is harmless.
*/
glamor_bind_texture(glamor_priv, GL_TEXTURE0 + unit, fbo,
glamor_fbo_red_is_alpha(glamor_priv, dest_priv->fbo));
dest_priv->fbo->is_red);
repeat_type = picture->repeatType;
switch (picture->repeatType) {
case RepeatNone:

2
glamor/glamor_transfer.c
View File

@ -40,7 +40,7 @@ glamor_format_for_pixmap(PixmapPtr pixmap, GLenum *format, GLenum *type)
break;
case 16:
if (priv->is_cbcr) {
*format = priv->fbo->format;
*format = GL_RG;
*type = GL_UNSIGNED_BYTE;
} else {
*format = GL_RGB;