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glamor: Require GL_OES_texture_border_clamp for GLES2.

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The extension came out in 2000, and all Mesa-supported hardware that
can do glamor supports it.  We were already relying on the ARB version
being present on desktop.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Eric Anholt 2016-09-24 22:26:17 +03:00
parent 7a5ddf8da5
commit 117d614d1b
2 changed files with 22 additions and 19 deletions
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19
glamor/glamor.c
View File

@ -515,6 +515,10 @@ glamor_init(ScreenPtr screen, unsigned int flags)
gl_version = epoxy_gl_version();
/* assume a core profile if we are GL 3.1 and don't have ARB_compatibility */
glamor_priv->is_core_profile =
gl_version >= 31 && !epoxy_has_gl_extension("GL_ARB_compatibility");
shading_version_string = (char *) glGetString(GL_SHADING_LANGUAGE_VERSION);
if (!shading_version_string) {
@ -569,6 +573,12 @@ glamor_init(ScreenPtr screen, unsigned int flags)
goto fail;
}
if (!glamor_priv->is_core_profile &&
!epoxy_has_gl_extension("GL_ARB_texture_border_clamp")) {
ErrorF("GL_ARB_texture_border_clamp required\n");
goto fail;
}
if (!glamor_check_instruction_count(gl_version))
goto fail;
} else {
@ -581,6 +591,11 @@ glamor_init(ScreenPtr screen, unsigned int flags)
ErrorF("GL_EXT_texture_format_BGRA8888 required\n");
goto fail;
}
if (!epoxy_has_gl_extension("GL_OES_texture_border_clamp")) {
ErrorF("GL_OES_texture_border_clamp required\n");
goto fail;
}
}
glamor_priv->has_rw_pbo = FALSE;
@ -612,10 +627,6 @@ glamor_init(ScreenPtr screen, unsigned int flags)
glamor_priv->has_dual_blend =
epoxy_has_gl_extension("GL_ARB_blend_func_extended");
/* assume a core profile if we are GL 3.1 and don't have ARB_compatibility */
glamor_priv->is_core_profile =
gl_version >= 31 && !epoxy_has_gl_extension("GL_ARB_compatibility");
glamor_priv->can_copyplane = (gl_version >= 30);
glamor_setup_debug_output(screen);

22
glamor/glamor_render.c
View File

@ -533,16 +533,8 @@ glamor_set_composite_texture(glamor_screen_private *glamor_priv, int unit,
repeat_type = picture->repeatType;
switch (picture->repeatType) {
case RepeatNone:
if (glamor_priv->gl_flavor != GLAMOR_GL_ES2) {
/* XXX GLES2 doesn't support GL_CLAMP_TO_BORDER. */
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_BORDER);
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
break;
case RepeatNormal:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
@ -573,12 +565,12 @@ glamor_set_composite_texture(glamor_screen_private *glamor_priv, int unit,
break;
}
/*
* GLES2 doesn't support RepeatNone. We need to fix it anyway.
*
**/
/* Handle RepeatNone in the shader when the source is missing the
* alpha channel, as GL will return an alpha for 1 if the texture
* is RGB (no alpha), which we use for 16bpp textures.
*/
if (glamor_pixmap_priv_is_large(pixmap_priv) ||
((!PICT_FORMAT_A(picture->format) || glamor_priv->gl_flavor == GLAMOR_GL_ES2) &&
(!PICT_FORMAT_A(picture->format) &&
repeat_type == RepeatNone && picture->transform)) {
glamor_pixmap_fbo_fix_wh_ratio(wh, pixmap, pixmap_priv);
glUniform4fv(wh_location, 1, wh);