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glamor_render: Fix the repeat none for GLES2.

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As GLES2 doesn't support clamp to the border, we have to
handle it seprately from the normal case.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
This commit is contained in:
Zhigang Gong 2012-04-27 15:34:15 +08:00 committed by Eric Anholt
parent 9fcd123aed
commit 9dfd10dc75
2 changed files with 71 additions and 28 deletions
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88
glamor/glamor_render.c
View File

@ -65,7 +65,7 @@ static struct blendinfo composite_op_info[] = {
{1, 1, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA},
[PictOpAdd] = {0, 0, GL_ONE, GL_ONE},
};
#define RepeatFix 10
static GLuint
glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
struct shader_key *key)
@ -75,6 +75,7 @@ glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
"#define RepeatNormal 1\n"
"#define RepeatPad 2\n"
"#define RepeatReflect 3\n"
"#define RepeatFix 10\n"
"uniform int source_repeat_mode;\n"
"uniform int mask_repeat_mode;\n";
const char *relocate_texture =
@ -83,7 +84,9 @@ glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
"{\n"
" vec2 rel_tex; \n"
" rel_tex = texture * wh; \n"
" if (repeat == RepeatNormal) \n"
" if (repeat == RepeatNone)\n"
" return rel_tex; \n"
" else if (repeat == RepeatNormal) \n"
" rel_tex = floor(rel_tex) + (fract(rel_tex) / wh); \n"
" else if(repeat == RepeatPad) { \n"
" if (rel_tex.x > 1.0) rel_tex.x = 1.0; \n"
@ -104,6 +107,24 @@ glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
" } \n"
" return rel_tex; \n"
"}\n";
/* The texture and the pixmap size is not match eaxctly, so can't sample it directly.
* rel_sampler will recalculate the texture coords.*/
const char *rel_sampler =
" vec4 rel_sampler(sampler2D tex_image, vec2 tex, vec2 wh, int repeat, int set_alpha)\n"
"{\n"
" tex = rel_tex_coord(tex, wh, repeat - RepeatFix);\n"
" if (repeat == RepeatFix) {\n"
" if (!(tex.x >= 0.0 && tex.x <= 1.0 \n"
" && tex.y >= 0.0 && tex.y <= 1.0))\n"
" return vec4(0.0, 0.0, 0.0, set_alpha);\n"
" tex = (fract(tex) / wh);\n"
" }\n"
" if (set_alpha != 1)\n"
" return texture2D(tex_image, tex);\n"
" else\n"
" return vec4(texture2D(tex_image, tex).rgb, 1.0);\n"
"}\n";
const char *source_solid_fetch =
GLAMOR_DEFAULT_PRECISION
"uniform vec4 source;\n"
@ -115,12 +136,11 @@ glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
"uniform vec2 source_wh;"
"vec4 get_source()\n"
"{\n"
" if (source_repeat_mode == RepeatNone) \n"
" if (source_repeat_mode < RepeatFix)\n"
" return texture2D(source_sampler, source_texture);\n"
" else \n"
" return texture2D(source_sampler,\n"
" rel_tex_coord(source_texture,\n"
" source_wh, source_repeat_mode));\n"
" else \n"
" return rel_sampler(source_sampler, source_texture,\n"
" source_wh, source_repeat_mode, 0);\n"
"}\n";
const char *source_pixmap_fetch =
GLAMOR_DEFAULT_PRECISION "varying vec2 source_texture;\n"
@ -128,12 +148,11 @@ glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
"uniform vec2 source_wh;\n"
"vec4 get_source()\n"
"{\n"
" if (source_repeat_mode == RepeatNone) \n"
" if (source_repeat_mode < RepeatFix) \n"
" return vec4(texture2D(source_sampler, source_texture).rgb, 1);\n"
" else \n"
" return vec4(texture2D(source_sampler, \n"
" rel_tex_coord(source_texture,\n"
" source_wh, source_repeat_mode)).rgb, 1);\n"
" return rel_sampler(source_sampler, source_texture,\n"
" source_wh, source_repeat_mode, 1);\n"
"}\n";
const char *mask_solid_fetch =
GLAMOR_DEFAULT_PRECISION "uniform vec4 mask;\n"
@ -144,12 +163,11 @@ glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
"uniform vec2 mask_wh;\n"
"vec4 get_mask()\n"
"{\n"
" if (mask_repeat_mode == RepeatNone) \n"
" if (mask_repeat_mode < RepeatFix) \n"
" return texture2D(mask_sampler, mask_texture);\n"
" else \n"
" return texture2D(mask_sampler, \n"
" rel_tex_coord(mask_texture, \n"
" mask_wh, mask_repeat_mode));\n"
" return rel_sampler(mask_sampler, mask_texture,\n"
" mask_wh, mask_repeat_mode, 0);\n"
"}\n";
const char *mask_pixmap_fetch =
GLAMOR_DEFAULT_PRECISION "varying vec2 mask_texture;\n"
@ -157,12 +175,11 @@ glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
"uniform vec2 mask_wh;\n"
"vec4 get_mask()\n"
"{\n"
" if (mask_repeat_mode == RepeatNone) \n"
" if (mask_repeat_mode < RepeatFix) \n"
" return vec4(texture2D(mask_sampler, mask_texture).rgb, 1);\n"
" else \n"
" return vec4(texture2D(mask_sampler, \n"
" rel_tex_coord(mask_texture, \n"
" mask_wh, mask_repeat_mode)).rgb, 1);\n"
" return rel_sampler(mask_sampler, mask_texture,\n"
" mask_wh, mask_repeat_mode, 1);\n"
"}\n";
const char *in_source_only =
GLAMOR_DEFAULT_PRECISION "void main()\n" "{\n"
@ -229,7 +246,7 @@ glamor_create_composite_fs(glamor_gl_dispatch * dispatch,
FatalError("Bad composite IN type");
}
XNFasprintf(&source, "%s%s%s%s%s", repeat_define, relocate_texture, source_fetch, mask_fetch, in);
XNFasprintf(&source, "%s%s%s%s%s%s", repeat_define, relocate_texture, rel_sampler,source_fetch, mask_fetch, in);
prog = glamor_compile_glsl_prog(dispatch, GL_FRAGMENT_SHADER,
@ -524,11 +541,12 @@ glamor_set_composite_texture(ScreenPtr screen, int unit,
glamor_gl_dispatch *dispatch;
float wh[2];
Bool has_repeat;
int repeat_type;
dispatch = glamor_get_dispatch(glamor_priv);
dispatch->glActiveTexture(GL_TEXTURE0 + unit);
dispatch->glBindTexture(GL_TEXTURE_2D, pixmap_priv->fbo->tex);
repeat_type = picture->repeatType;
switch (picture->repeatType) {
case RepeatNone:
#ifndef GLAMOR_GLES2
@ -537,6 +555,11 @@ glamor_set_composite_texture(ScreenPtr screen, int unit,
GL_CLAMP_TO_BORDER);
dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_BORDER);
#else
dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
GL_CLAMP_TO_EDGE);
dispatch->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
#endif
break;
case RepeatNormal:
@ -560,6 +583,7 @@ glamor_set_composite_texture(ScreenPtr screen, int unit,
}
switch (picture->filter) {
default:
case PictFilterNearest:
dispatch->glTexParameteri(GL_TEXTURE_2D,
GL_TEXTURE_MIN_FILTER,
@ -569,7 +593,6 @@ glamor_set_composite_texture(ScreenPtr screen, int unit,
GL_NEAREST);
break;
case PictFilterBilinear:
default:
dispatch->glTexParameteri(GL_TEXTURE_2D,
GL_TEXTURE_MIN_FILTER,
GL_LINEAR);
@ -581,14 +604,22 @@ glamor_set_composite_texture(ScreenPtr screen, int unit,
#ifndef GLAMOR_GLES2
dispatch->glEnable(GL_TEXTURE_2D);
#endif
dispatch->glUniform1i(repeat_location, picture->repeatType);
if (picture->repeatType != RepeatNone) {
wh[0] = (float)pixmap_priv->fbo->width
/ pixmap_priv->container->drawable.width;
wh[1] = (float)pixmap_priv->fbo->height
/ pixmap_priv->container->drawable.height;
/* XXX may be we can eaxctly check whether we need to touch
* the out-of-box area then determine whether we need to fix.
* */
if (repeat_type != RepeatNone)
repeat_type += RepeatFix;
else if (glamor_priv->gl_flavor == GLAMOR_GL_ES2) {
if (picture->transform
|| (GLAMOR_PIXMAP_FBO_NOT_EAXCT_SIZE(pixmap_priv)))
repeat_type += RepeatFix;
}
if (repeat_type >= RepeatFix) {
glamor_pixmap_fbo_fix_wh_ratio(wh, pixmap_priv);
dispatch->glUniform2fv(wh_location, 1, wh);
}
dispatch->glUniform1i(repeat_location, repeat_type);
glamor_put_dispatch(glamor_priv);
}
@ -694,6 +725,7 @@ glamor_composite_with_copy(CARD8 op,
if (region.extents.y2 + y_source - y_dest > source->pDrawable->height)
goto cleanup_region;
}
ret = glamor_copy_n_to_n_nf(source->pDrawable,
dest->pDrawable, NULL,
REGION_RECTS(&region),

11
glamor/glamor_utils.h
View File

@ -18,6 +18,17 @@
*(_pyscale_) = 1.0 / (_pixmap_priv_)->fbo->height; \
} while(0)
#define GLAMOR_PIXMAP_FBO_NOT_EAXCT_SIZE(priv) \
(priv->fbo->width != priv->container->drawable.width \
|| priv->fbo->height != priv->container->drawable.height)
#define glamor_pixmap_fbo_fix_wh_ratio(wh, priv) do { \
wh[0] = (float)priv->fbo->width \
/ priv->container->drawable.width; \
wh[1] = (float)priv->fbo->height \
/ priv->container->drawable.height; \
} while(0)
#define xFixedToFloat(_val_) ((float)xFixedToInt(_val_) \
+ ((float)xFixedFrac(_val_) / 65536.0))