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evas: add YUV double buffering for OpenGL backend. 

SVN revision: 63225
This commit is contained in:
Cedric BAIL 2011-09-06 07:56:47 +00:00
parent 9c08e73d48
commit 120306f05f
2 changed files with 96 additions and 38 deletions
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8
legacy/evas/src/modules/engines/gl_common/evas_gl_common.h
View File

@ -362,11 +362,17 @@ struct _Evas_GL_Texture
{
Evas_Engine_GL_Context *gc;
Evas_GL_Image *im;
Evas_GL_Texture_Pool *pt, *ptu, *ptv, *ptuv;
Evas_GL_Texture_Pool *pt, *ptu, *ptv, *ptuv;
int x, y, w, h;
double sx1, sy1, sx2, sy2;
int references;
struct
{
Evas_GL_Texture_Pool *pt[2], *ptuv[2];
int source;
} double_buffer;
Eina_Bool alpha : 1;
};

126
legacy/evas/src/modules/engines/gl_common/evas_gl_texture.c
View File

@ -649,6 +649,7 @@ evas_gl_texture_pool_empty(Evas_GL_Texture_Pool *pt)
static void
pt_unref(Evas_GL_Texture_Pool *pt)
{
if (!pt) return;
if (!pt->gc) return;
pt->references--;
if (pt->references != 0) return;
@ -666,6 +667,17 @@ pt_unref(Evas_GL_Texture_Pool *pt)
free(pt);
}
static void
pt_link(Evas_Engine_GL_Context *gc, Evas_GL_Texture *tex, Evas_GL_Texture_Pool *pt)
{
gc->shared->tex.whole = eina_list_prepend(gc->shared->tex.whole, pt);
pt->slot = -1;
pt->fslot = -1;
pt->whole = 1;
pt->allocations = eina_list_prepend(pt->allocations, tex);
pt->references++;
}
Evas_GL_Texture *
evas_gl_common_texture_native_new(Evas_Engine_GL_Context *gc, unsigned int w, unsigned int h, int alpha, Evas_GL_Image *im)
{
@ -874,15 +886,36 @@ evas_gl_common_texture_free(Evas_GL_Texture *tex)
if (!tex) return;
tex->references--;
if (tex->references != 0) return;
if (tex->pt)
if (tex->double_buffer.pt[0])
{
// printf("tex->pt = %p\n", tex->pt);
// printf("tex->pt->references = %i\n", tex->pt->references);
tex->pt->allocations = eina_list_remove(tex->pt->allocations, tex);
pt_unref(tex->pt);
tex->double_buffer.pt[0]->allocations = eina_list_remove(tex->double_buffer.pt[0]->allocations, tex);
tex->double_buffer.pt[1]->allocations = eina_list_remove(tex->double_buffer.pt[1]->allocations, tex);
tex->double_buffer.ptuv[0]->allocations = eina_list_remove(tex->double_buffer.ptuv[0]->allocations, tex);
tex->double_buffer.ptuv[1]->allocations = eina_list_remove(tex->double_buffer.ptuv[1]->allocations, tex);
}
else
{
if (tex->pt)
{
tex->pt->allocations = eina_list_remove(tex->pt->allocations, tex);
pt_unref(tex->pt);
}
if (tex->ptu)
{
tex->ptu->allocations = eina_list_remove(tex->ptu->allocations, tex);
pt_unref(tex->ptu);
}
if (tex->ptv)
{
tex->ptv->allocations = eina_list_remove(tex->ptv->allocations, tex);
pt_unref(tex->ptv);
}
if (tex->ptuv)
{
tex->ptuv->allocations = eina_list_remove(tex->ptuv->allocations, tex);
pt_unref(tex->ptuv);
}
}
if (tex->ptu) pt_unref(tex->ptu);
if (tex->ptv) pt_unref(tex->ptv);
free(tex);
}
@ -1077,43 +1110,49 @@ _evas_gl_common_texture_y2uv_new(Evas_Engine_GL_Context *gc,
GLenum y_ifmt, GLenum y_fmt,
GLenum uv_ifmt, GLenum uv_fmt)
{
Evas_GL_Texture_Pool *pt[2] = { NULL, NULL };
Evas_GL_Texture_Pool *ptuv[2] = { NULL, NULL };
Evas_GL_Texture *tex;
pt[0] = _pool_tex_new(gc, yw + 1, yh + 1, y_ifmt, y_fmt);
pt[1] = _pool_tex_new(gc, yw + 1, yh + 1, y_ifmt, y_fmt);
ptuv[0] = _pool_tex_new(gc, uvw + 1, uvh + 1, uv_ifmt, uv_fmt);
ptuv[1] = _pool_tex_new(gc, uvw + 1, uvh + 1, uv_ifmt, uv_fmt);
if (!pt[0] || !pt[1] || !ptuv[0] || !ptuv[1])
goto on_error;
tex = calloc(1, sizeof(Evas_GL_Texture));
if (!tex) return NULL;
if (!tex)
goto on_error;
tex->gc = gc;
tex->references = 1;
tex->pt = _pool_tex_new(gc, yw + 1, yh + 1, y_ifmt, y_fmt);
if (!tex->pt)
{
free(tex);
return NULL;
}
gc->shared->tex.whole = eina_list_prepend(gc->shared->tex.whole, tex->pt);
tex->pt->slot = -1;
tex->pt->fslot = -1;
tex->pt->whole = 1;
tex->ptuv = _pool_tex_new(gc, uvw + 1, uvh + 1, uv_ifmt, uv_fmt);
if (!tex->ptuv)
{
pt_unref(tex->pt);
free(tex);
return NULL;
}
gc->shared->tex.whole = eina_list_prepend(gc->shared->tex.whole, tex->ptuv);
tex->ptuv->slot = -1;
tex->ptuv->fslot = -1;
tex->ptuv->whole = 1;
tex->pt = pt[0];
tex->ptuv = ptuv[0];
pt_link(gc, tex, pt[0]);
pt_link(gc, tex, pt[1]);
pt_link(gc, tex, ptuv[0]);
pt_link(gc, tex, ptuv[1]);
tex->x = 0;
tex->y = 0;
tex->w = yw;
tex->h = yh;
tex->pt->allocations = eina_list_prepend(tex->pt->allocations, tex);
tex->ptuv->allocations = eina_list_prepend(tex->ptuv->allocations, tex);
tex->pt->references++;
tex->ptuv->references++;
tex->double_buffer.source = 0;
memcpy(tex->double_buffer.pt, pt, sizeof (Evas_GL_Texture_Pool *) * 2);
memcpy(tex->double_buffer.ptuv, ptuv, sizeof (Evas_GL_Texture_Pool *) * 2);
return tex;
on_error:
pt_unref(pt[0]);
pt_unref(pt[1]);
pt_unref(ptuv[0]);
pt_unref(ptuv[1]);
return NULL;
}
Evas_GL_Texture *
@ -1131,7 +1170,7 @@ evas_gl_common_texture_nv12_new(Evas_Engine_GL_Context *gc, DATA8 **rows, unsign
{
Evas_GL_Texture *tex;
tex = _evas_gl_common_texture_y2uv_new(gc, w, h, w / 2, h / 2, alpha_ifmt, alpha_fmt, lum_alpha_ifmt, lum_alpha_fmt);
tex = _evas_gl_common_texture_y2uv_new(gc, w, h, w / 2, h / 2, lum_ifmt, lum_fmt, lum_alpha_ifmt, lum_alpha_fmt);
evas_gl_common_texture_nv12_update(tex, rows, w, h);
return tex;
}
@ -1153,6 +1192,10 @@ evas_gl_common_texture_yuy2_update(Evas_GL_Texture *tex, DATA8 **rows, unsigned
// FIXME: works on lowest size 4 pixel high buffers. must also be multiple of 2
unsigned int y;
tex->double_buffer.source = 1 - tex->double_buffer.source;
tex->pt = tex->double_buffer.pt[tex->double_buffer.source];
tex->ptuv = tex->double_buffer.ptuv[tex->double_buffer.source];
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
GLERR(__FUNCTION__, __FILE__, __LINE__, "");
glBindTexture(GL_TEXTURE_2D, tex->pt->texture);
@ -1188,6 +1231,11 @@ void
evas_gl_common_texture_nv12_update(Evas_GL_Texture *tex, DATA8 **rows, unsigned int w, unsigned int h)
{
if (!tex->pt) return;
tex->double_buffer.source = 1 - tex->double_buffer.source;
tex->pt = tex->double_buffer.pt[tex->double_buffer.source];
tex->ptuv = tex->double_buffer.ptuv[tex->double_buffer.source];
// FIXME: works on lowest size 4 pixel high buffers. must also be multiple of 2
#ifdef GL_UNPACK_ROW_LENGTH
glPixelStorei(GL_UNPACK_ROW_LENGTH, rows[1] - rows[0]);
@ -1246,14 +1294,19 @@ evas_gl_common_texture_nv12tiled_update(Evas_GL_Texture *tex, DATA8 **rows, unsi
if (!tex->pt) return;
tex->double_buffer.source = 1 - tex->double_buffer.source;
tex->pt = tex->double_buffer.pt[tex->double_buffer.source];
tex->ptuv = tex->double_buffer.ptuv[tex->double_buffer.source];
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
GLERR(__FUNCTION__, __FILE__, __LINE__, "");
glBindTexture(GL_TEXTURE_2D, tex->pt->texture);
GLERR(__FUNCTION__, __FILE__, __LINE__, "");
mb_w = w / 64;
mb_h = h / 32;
glBindTexture(GL_TEXTURE_2D, tex->pt->texture);
GLERR(__FUNCTION__, __FILE__, __LINE__, "");
// We are telling the driver to not swizzle back the buffer as we are going to replace all pixel
_tex_2d(tex->pt->intformat, w, h, tex->pt->format, tex->pt->dataformat);
@ -1321,7 +1374,6 @@ evas_gl_common_texture_nv12tiled_update(Evas_GL_Texture *tex, DATA8 **rows, unsi
_tex_sub_2d(x, ry[offset], 32, 32,
tex->ptuv->format, tex->ptuv->dataformat,
rows[mb_y + base_h] + rmb_x);
step++;
if ((step & 0x3) == 0)
{