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efl/src/lib/evas/filters/evas_filter.c

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/*
* \@file evas_filter.c
*
* Infrastructure for simple filters applied to RGBA and Alpha buffers.
* Originally used by font effects.
*
* Filters include:
* - Blur (Gaussian, Box, Motion) and Shadows
* - Bump maps (light effects)
* - Displacement maps
* - Color curves
* - Blending and masking
*
* The reference documentation can be found in evas_filter_parser.c
*/
#include "evas_filter.h"
#include "evas_filter_private.h"
#include <Ector.h>
#include <software/Ector_Software.h>
#include "evas_ector_buffer.eo.h"
#define _assert(a) if (!(a)) CRI("Failed on %s", #a);
static void _buffer_free(Evas_Filter_Buffer *fb);
static void _command_del(Evas_Filter_Context *ctx, Evas_Filter_Command *cmd);
static Evas_Filter_Buffer *_buffer_alloc_new(Evas_Filter_Context *ctx, int w, int h, Eina_Bool alpha_only, Eina_Bool render, Eina_Bool draw);
static void _filter_buffer_unlock_all(Evas_Filter_Context *ctx);
#define DRAW_COLOR_SET(r, g, b, a) do { cmd->draw.R = r; cmd->draw.G = g; cmd->draw.B = b; cmd->draw.A = a; } while (0)
#define DRAW_CLIP_SET(_x, _y, _w, _h) do { cmd->draw.clip.x = _x; cmd->draw.clip.y = _y; cmd->draw.clip.w = _w; cmd->draw.clip.h = _h; } while (0)
#define DRAW_FILL_SET(fmode) do { cmd->draw.fillmode = fmode; } while (0)
/* Main functions */
#define _free(ptr) free(ptr)
//eina_freeq_ptr_main_add(ptr, NULL, sizeof(*ptr))
/* FIXME: This code is come from a log by
CRI<14853>:eo lib/eo/eo.c:1894 efl_unref() Calling efl_unref instead of efl_del or efl_parent_set(NULL).
Temporary fallback in place triggered." When u get correct method, please fix this. */
static void
_buffer_del(Eo *buffer)
{
if (!buffer) return;
if (efl_parent_get(buffer))
efl_del(buffer);
else
efl_unref(buffer);
}
Evas_Filter_Context *
evas_filter_context_new(Evas_Public_Data *evas, Eina_Bool async, void *user_data)
{
Evas_Filter_Context *ctx;
EINA_SAFETY_ON_NULL_RETURN_VAL(evas, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(evas->engine.func->gfx_filter_supports, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(evas->engine.func->gfx_filter_process, NULL);
ctx = calloc(1, sizeof(Evas_Filter_Context));
if (!ctx) return NULL;
ctx->evas = evas;
ctx->async = async;
ctx->user_data = user_data;
ctx->buffer_scaled_get = &evas_filter_buffer_scaled_get;
ctx->gl = (ENFN->gl_surface_read_pixels != NULL);
ctx->refcount = 1;
return ctx;
}
void *
evas_filter_context_data_get(Evas_Filter_Context *ctx)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
return ctx->user_data;
}
Eina_Bool
evas_filter_context_async_get(Evas_Filter_Context *ctx)
{
return ctx->async;
}
void
evas_filter_context_size_get(Evas_Filter_Context *ctx, int *w, int *h)
{
if (w) *w = ctx->w;
if (h) *h = ctx->h;
}
/* Private function to reset the filter context. Used from parser.c */
void
evas_filter_context_clear(Evas_Filter_Context *ctx, Eina_Bool keep_buffers)
{
Evas_Filter_Command *cmd;
Evas_Filter_Buffer *fb;
if (!ctx) return;
if (ctx->target.surface) ENFN->image_free(ENC, ctx->target.surface);
if (ctx->target.mask) ENFN->image_free(ENC, ctx->target.mask);
ctx->target.surface = NULL;
ctx->target.mask = NULL;
if (!keep_buffers)
{
ctx->last_buffer_id = 0;
EINA_LIST_FREE(ctx->buffers, fb)
_buffer_free(fb);
}
ctx->last_command_id = 0;
EINA_INLIST_FREE(ctx->commands, cmd)
_command_del(ctx, cmd);
// Note: don't reset post_run, as it it set by the client
}
static void
_filter_buffer_backing_free(Evas_Filter_Buffer *fb)
{
if (!fb || !fb->buffer) return;
_buffer_del((Eo *)fb->buffer);
fb->buffer = NULL;
}
/** @hidden private render proxy objects */
void
evas_filter_context_proxy_render_all(Evas_Filter_Context *ctx, Eo *eo_obj, void *output,
Eina_Bool do_async)
{
Evas_Object_Protected_Data *source;
Evas_Object_Protected_Data *obj;
void *proxy_surface;
Evas_Filter_Buffer *fb;
Eina_List *li;
if (!ctx->has_proxies) return;
obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
EINA_LIST_FOREACH(ctx->buffers, li, fb)
if (fb->source)
{
// TODO: Lock current object as proxyrendering (see image obj)
source = efl_data_scope_get(fb->source, EFL_CANVAS_OBJECT_CLASS);
_assert(fb->w == source->cur->geometry.w);
_assert(fb->h == source->cur->geometry.h);
proxy_surface = source->proxy->surface;
if (source->proxy->surface && !source->proxy->redraw)
{
XDBG("Source already rendered: '%s' of type '%s'",
fb->source_name, efl_class_name_get(efl_class_get(fb->source)));
}
else
{
XDBG("Source needs to be rendered: '%s' of type '%s' (%s)",
fb->source_name, efl_class_name_get(efl_class_get(fb->source)),
source->proxy->redraw ? "redraw" : "no surface");
evas_render_proxy_subrender(ctx->evas->evas, output, fb->source, eo_obj, obj, EINA_FALSE, do_async);
}
if (fb->buffer)
{
void *old_surface;
old_surface = evas_ector_buffer_drawable_image_get(fb->buffer);
if (old_surface)
{
evas_ector_buffer_engine_image_release(fb->buffer, old_surface);
if (old_surface && (old_surface != proxy_surface))
_filter_buffer_backing_free(fb);
}
}
XDBG("Source #%d '%s' has dimensions %dx%d", fb->id, fb->source_name, fb->w, fb->h);
if (!fb->buffer) fb->buffer = ENFN->ector_buffer_wrap(ENC, obj->layer->evas->evas, source->proxy->surface);
fb->alpha_only = EINA_FALSE;
}
}
void
_evas_filter_context_program_reuse(void *engine, void *output, Evas_Filter_Context *ctx)
{
Evas_Filter_Buffer *fb;
Eina_List *li;
_filter_buffer_unlock_all(ctx);
EINA_LIST_FOREACH(ctx->buffers, li, fb)
{
void *dc, *surface;
fb->used = EINA_FALSE;
fb->locked = EINA_FALSE;
if (!fb->is_render) continue;
if (fb->source) continue;
surface = evas_ector_buffer_render_image_get(fb->buffer);
if (!surface) continue;
dc = ENFN->context_new(engine);
ENFN->context_color_set(engine, dc, 0, 0, 0, 0);
ENFN->context_render_op_set(engine, dc, EVAS_RENDER_COPY);
ENFN->rectangle_draw(engine, output, dc, surface, 0, 0, fb->w, fb->h, ctx->async);
ENFN->context_free(engine, dc);
fb->dirty = EINA_FALSE;
evas_ector_buffer_engine_image_release(fb->buffer, surface);
}
}
static void
_context_destroy(void *data)
{
Evas_Filter_Context *ctx = data;
EINA_SAFETY_ON_FALSE_RETURN(ctx->refcount == 0);
evas_filter_context_clear(ctx, EINA_FALSE);
_free(ctx);
}
int
evas_filter_context_ref(Evas_Filter_Context *ctx)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, -1);
#ifdef FILTERS_DEBUG
EINA_SAFETY_ON_FALSE_RETURN_VAL(eina_main_loop_is(), -1);
EINA_SAFETY_ON_FALSE_RETURN_VAL(ctx->refcount > 0, -1);
#endif
return (++ctx->refcount);
}
void
evas_filter_context_unref(Evas_Filter_Context *ctx)
{
if (!ctx) return;
#ifdef FILTERS_DEBUG
EINA_SAFETY_ON_FALSE_RETURN(eina_main_loop_is());
EINA_SAFETY_ON_FALSE_RETURN(ctx->refcount > 0);
#endif
if ((--ctx->refcount) != 0) return;
if (!ctx->running)
_context_destroy(ctx);
// else: post_run_cb will be called
}
void
evas_filter_context_post_run_callback_set(Evas_Filter_Context *ctx,
Evas_Filter_Cb cb, void *data)
{
EINA_SAFETY_ON_NULL_RETURN(ctx);
ctx->post_run.cb = cb;
ctx->post_run.data = data;
}
static Evas_Filter_Buffer *
_buffer_empty_new(Evas_Filter_Context *ctx, int w, int h, Eina_Bool alpha_only,
Eina_Bool transient)
{
Evas_Filter_Buffer *fb;
fb = calloc(1, sizeof(Evas_Filter_Buffer));
if (!fb) return NULL;
fb->id = ++(ctx->last_buffer_id);
fb->ctx = ctx;
fb->alpha_only = alpha_only;
fb->transient = transient;
fb->w = w;
fb->h = h;
ctx->buffers = eina_list_append(ctx->buffers, fb);
return fb;
}
static Ector_Buffer *
_ector_buffer_create(Evas_Filter_Buffer const *fb, Eina_Bool render, Eina_Bool draw)
{
Efl_Gfx_Colorspace cspace = EFL_GFX_COLORSPACE_ARGB8888;
Ector_Buffer_Flag flags;
// FIXME: Once all filters are GL buffers need not be CPU accessible
flags = ECTOR_BUFFER_FLAG_CPU_READABLE | ECTOR_BUFFER_FLAG_CPU_WRITABLE;
if (render) flags |= ECTOR_BUFFER_FLAG_RENDERABLE;
if (draw) flags |= ECTOR_BUFFER_FLAG_DRAWABLE;
if (fb->alpha_only) cspace = EFL_GFX_COLORSPACE_GRY8;
return fb->ENFN->ector_buffer_new(FB_ENC, fb->ctx->evas->evas,
fb->w, fb->h, cspace, flags);
}
Eina_Bool
evas_filter_context_buffers_allocate_all(Evas_Filter_Context *ctx)
{
Evas_Filter_Command *cmd;
Evas_Filter_Buffer *fb;
Eina_List *li, *li2;
unsigned w, h;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, EINA_FALSE);
w = ctx->w;
h = ctx->h;
XDBG("Allocating all buffers based on output size %ux%u", w, h);
EINA_LIST_FOREACH(ctx->buffers, li, fb)
fb->cleanup = EINA_TRUE;
EINA_INLIST_FOREACH(ctx->commands, cmd)
{
Evas_Filter_Fill_Mode fillmode = cmd->draw.fillmode;
Evas_Filter_Buffer *in, *out;
in = cmd->input;
EINA_SAFETY_ON_NULL_GOTO(in, alloc_fail);
in->cleanup = EINA_FALSE;
if (!in->w && !in->h)
{
in->w = w;
in->h = h;
}
if (cmd->mask)
cmd->mask->cleanup = EINA_FALSE;
// FIXME: No need for stretch buffers with GL!
if (fillmode & EVAS_FILTER_FILL_MODE_STRETCH_XY)
{
unsigned sw = w, sh = h;
switch (cmd->mode)
{
case EVAS_FILTER_MODE_BLEND:
in = cmd->input;
break;
case EVAS_FILTER_MODE_BUMP:
case EVAS_FILTER_MODE_DISPLACE:
case EVAS_FILTER_MODE_MASK:
in = cmd->mask;
break;
default:
CRI("Invalid fillmode set for command %d", cmd->mode);
return EINA_FALSE;
}
EINA_SAFETY_ON_NULL_GOTO(in, alloc_fail);
if (in->w) sw = in->w;
if (in->h) sh = in->h;
if ((sw != w) || (sh != h))
{
if (fillmode & EVAS_FILTER_FILL_MODE_STRETCH_X)
sw = w;
if (fillmode & EVAS_FILTER_FILL_MODE_STRETCH_Y)
sh = h;
fb = _buffer_alloc_new(ctx, sw, sh, in->alpha_only, 1, 1);
XDBG("Allocated temporary buffer #%d of size %ux%u %s",
fb ? fb->id : -1, sw, sh, in->alpha_only ? "alpha" : "rgba");
if (!fb) goto alloc_fail;
fb->transient = EINA_TRUE;
fb->cleanup = EINA_FALSE;
}
}
if (cmd->draw.need_temp_buffer)
{
unsigned sw = w, sh = h;
in = cmd->input;
if (in->w) sw = in->w;
if (in->h) sh = in->h;
fb = _buffer_alloc_new(ctx, sw, sh, in->alpha_only, 1, 1);
XDBG("Allocated temporary buffer #%d of size %ux%u %s",
fb ? fb->id : -1, sw, sh, in->alpha_only ? "alpha" : "rgba");
if (!fb) goto alloc_fail;
fb->transient = EINA_TRUE;
fb->cleanup = EINA_FALSE;
}
out = cmd->output;
out->cleanup = EINA_FALSE;
if (!out->w && !out->h)
{
out->w = w;
out->h = h;
}
}
EINA_LIST_FOREACH(ctx->buffers, li, fb)
{
Eina_Bool render = EINA_FALSE, draw = EINA_FALSE;
if (fb->source)
{
fb->cleanup = EINA_FALSE;
continue;
}
if (fb->buffer || fb->cleanup)
continue;
if (!fb->w && !fb->h)
{
ERR("Size of buffer %d should be known at this point. Is this a dangling buffer?", fb->id);
continue;
}
// Skip input buffer, allocate it in input render phase
if (fb->id == EVAS_FILTER_BUFFER_INPUT_ID)
continue;
render = fb->is_render || fb->transient;
draw |= (fb->id == EVAS_FILTER_BUFFER_OUTPUT_ID);
fb->buffer = _ector_buffer_create(fb, render, draw);
XDBG("Allocated buffer #%d of size %ux%u %s: %p",
fb->id, fb->w, fb->h, fb->alpha_only ? "alpha" : "rgba", fb->buffer);
if (!fb->buffer) goto alloc_fail;
}
EINA_LIST_FOREACH_SAFE(ctx->buffers, li, li2, fb)
{
if (fb->cleanup)
{
XDBG("Cleanup buffer #%d %dx%d %s", fb->id, fb->w, fb->h, fb->alpha_only ? "alpha" : "rgba");
ctx->buffers = eina_list_remove_list(ctx->buffers, li);
_buffer_free(fb);
}
}
return EINA_TRUE;
alloc_fail:
ERR("Buffer allocation failed! Context size: %dx%d", w, h);
return EINA_FALSE;
}
int
evas_filter_buffer_empty_new(Evas_Filter_Context *ctx, int w, int h, Eina_Bool alpha_only)
{
Evas_Filter_Buffer *fb;
Eina_List *li;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, -1);
EINA_LIST_FOREACH(ctx->buffers, li, fb)
{
if ((fb->alpha_only == alpha_only) &&
(fb->w == w) && (fb->h == h) && !fb->dirty && !fb->used)
{
fb->used = EINA_TRUE;
return fb->id;
}
}
fb = _buffer_empty_new(ctx, w, h, alpha_only, EINA_FALSE);
if (!fb) return -1;
fb->used = EINA_TRUE;
return fb->id;
}
int
evas_filter_buffer_proxy_new(Evas_Filter_Context *ctx, Evas_Filter_Proxy_Binding *pb,
int *w, int *h)
{
Evas_Object_Protected_Data *source;
Evas_Filter_Buffer *fb;
Eina_List *li;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, -1);
EINA_SAFETY_ON_NULL_RETURN_VAL(pb, -1);
source = efl_data_scope_get(pb->eo_source, EFL_CANVAS_OBJECT_CLASS);
if (!source) return -1;
// FIXME: This is not true if the source is an evas image
*w = source->cur->geometry.w;
*h = source->cur->geometry.h;
EINA_LIST_FOREACH(ctx->buffers, li, fb)
{
if (pb->eo_source == fb->source)
{
if (fb->used) return -1;
if (fb->alpha_only) return -1;
if (!eina_streq(pb->name, fb->source_name)) return -1;
if ((*w != fb->w) || (*h != fb->h)) return -1;
fb->used = EINA_TRUE;
return fb->id;
}
}
fb = _buffer_empty_new(ctx, *w, *h, EINA_FALSE, EINA_FALSE);
if (!fb) return -1;
fb->source = efl_ref(pb->eo_source);
fb->source_name = eina_stringshare_add(pb->name);
fb->used = EINA_TRUE;
return fb->id;
}
static Evas_Filter_Buffer *
_buffer_alloc_new(Evas_Filter_Context *ctx, int w, int h, Eina_Bool alpha_only,
Eina_Bool render, Eina_Bool draw)
{
Evas_Filter_Buffer *fb;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
EINA_SAFETY_ON_FALSE_RETURN_VAL(w > 0 && h > 0, NULL);
fb = calloc(1, sizeof(Evas_Filter_Buffer));
if (!fb) return NULL;
fb->id = ++(ctx->last_buffer_id);
fb->ctx = ctx;
fb->w = w;
fb->h = h;
fb->alpha_only = alpha_only;
fb->is_render = render;
fb->buffer = _ector_buffer_create(fb, render, draw);
if (!fb->buffer)
{
ERR("Failed to create ector buffer!");
_free(fb);
return NULL;
}
ctx->buffers = eina_list_append(ctx->buffers, fb);
return fb;
}
static void
_buffer_free(Evas_Filter_Buffer *fb)
{
_filter_buffer_backing_free(fb);
eina_stringshare_del(fb->source_name);
efl_unref(fb->source);
_free(fb);
}
Evas_Filter_Buffer *
_filter_buffer_get(Evas_Filter_Context *ctx, int bufid)
{
Evas_Filter_Buffer *buffer;
Eina_List *l;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
EINA_LIST_FOREACH(ctx->buffers, l, buffer)
if (buffer->id == bufid) return buffer;
return NULL;
}
void *
evas_filter_buffer_backing_get(Evas_Filter_Context *ctx, int bufid, Eina_Bool render)
{
Evas_Filter_Buffer *fb;
fb = _filter_buffer_get(ctx, bufid);
if (!fb) return NULL;
if (!fb->buffer)
evas_filter_buffer_backing_set(ctx, bufid, NULL);
if (render)
return evas_ector_buffer_render_image_get(fb->buffer); // ref++
else
return evas_ector_buffer_drawable_image_get(fb->buffer); // ref++
}
Eina_Bool
evas_filter_buffer_backing_set(Evas_Filter_Context *ctx, int bufid,
void *engine_buffer)
{
Evas_Filter_Buffer *fb;
Eina_Bool ret = EINA_FALSE;
Eo *buffer = NULL;
fb = _filter_buffer_get(ctx, bufid);
if (!fb) return EINA_FALSE;
if (!engine_buffer)
{
buffer = _ector_buffer_create(fb, fb->is_render, EINA_FALSE);
XDBG("Allocated buffer #%d of size %ux%u %s: %p",
fb->id, fb->w, fb->h, fb->alpha_only ? "alpha" : "rgba", fb->buffer);
ret = buffer ? EINA_TRUE : EINA_FALSE;
goto end;
}
if (fb->is_render) goto end;
buffer = ENFN->ector_buffer_wrap(ENC, ctx->evas->evas, engine_buffer);
ret = EINA_TRUE;
end:
if (fb->buffer != buffer) _buffer_del((Eo *)fb->buffer);
fb->buffer = buffer;
return ret;
}
static Evas_Filter_Command *
_command_new(Evas_Filter_Context *ctx, Evas_Filter_Mode mode,
Evas_Filter_Buffer *input, Evas_Filter_Buffer *mask,
Evas_Filter_Buffer *output)
{
Evas_Filter_Command *cmd;
cmd = calloc(1, sizeof(Evas_Filter_Command));
if (!cmd) return NULL;
cmd->id = ++(ctx->last_command_id);
cmd->ctx = ctx;
cmd->mode = mode;
cmd->input = input;
cmd->mask = mask;
cmd->output = output;
cmd->draw.R = 255;
cmd->draw.G = 255;
cmd->draw.B = 255;
cmd->draw.A = 255;
cmd->draw.rop = EFL_GFX_RENDER_OP_BLEND;
if (output)
{
cmd->draw.output_was_dirty = output->dirty;
output->is_render = EINA_TRUE;
output->dirty = EINA_TRUE;
}
ctx->commands = eina_inlist_append(ctx->commands, EINA_INLIST_GET(cmd));
return cmd;
}
static void
_command_del(Evas_Filter_Context *ctx, Evas_Filter_Command *cmd)
{
if (!ctx || !cmd) return;
ctx->commands = eina_inlist_remove(ctx->commands, EINA_INLIST_GET(cmd));
switch (cmd->mode)
{
case EVAS_FILTER_MODE_CURVE: _free(cmd->curve.data); break;
default: break;
}
_free(cmd);
}
Evas_Filter_Buffer *
evas_filter_temporary_buffer_get(Evas_Filter_Context *ctx, int w, int h,
Eina_Bool alpha_only, Eina_Bool clean)
{
Evas_Filter_Buffer *fb = NULL;
Eina_List *l;
EINA_LIST_FOREACH(ctx->buffers, l, fb)
{
if (fb->transient && !fb->locked && (fb->alpha_only == alpha_only)
&& (!clean || !fb->dirty))
{
if ((!w || (w == fb->w)) && (!h || (h == fb->h)))
{
fb->locked = EINA_TRUE;
return fb;
}
}
}
if (ctx->running)
{
ERR("Can not create a new buffer while filter is running!");
return NULL;
}
fb = _buffer_empty_new(ctx, w, h, alpha_only, EINA_TRUE);
fb->locked = EINA_TRUE;
fb->is_render = EINA_TRUE;
XDBG("Created temporary buffer %d %s", fb->id, alpha_only ? "alpha" : "rgba");
return fb;
}
static void
_filter_buffer_unlock_all(Evas_Filter_Context *ctx)
{
Evas_Filter_Buffer *buf = NULL;
Eina_List *l;
EINA_LIST_FOREACH(ctx->buffers, l, buf)
buf->locked = EINA_FALSE;
}
Evas_Filter_Command *
evas_filter_command_fill_add(Evas_Filter_Context *ctx, void *draw_context,
int bufid)
{
Evas_Filter_Command *cmd;
Evas_Filter_Buffer *buf = NULL;
int R, G, B, A, cx, cy, cw, ch;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(draw_context, NULL);
buf = _filter_buffer_get(ctx, bufid);
if (!buf)
{
ERR("Buffer %d does not exist.", bufid);
return NULL;
}
cmd = _command_new(ctx, EVAS_FILTER_MODE_FILL, buf, NULL, buf);
if (!cmd) return NULL;
ENFN->context_color_get(ENC, draw_context, &R, &G, &B, &A);
DRAW_COLOR_SET(R, G, B, A);
ENFN->context_clip_get(ENC, draw_context, &cx, &cy, &cw, &ch);
DRAW_CLIP_SET(cx, cy, cw, ch);
XDBG("Add fill %d with color(%d,%d,%d,%d)", buf->id, R, G, B, A);
if (!R && !G && !B && !A)
buf->dirty = EINA_FALSE;
return cmd;
}
static Evas_Filter_Command *
evas_filter_command_blur_add_gl(Evas_Filter_Context *ctx,
Evas_Filter_Buffer *in, Evas_Filter_Buffer *out,
Evas_Filter_Blur_Type type,
int rx, int ry, int ox, int oy, int count,
int R, int G, int B, int A, Eina_Bool alphaonly)
{
Evas_Filter_Command *cmd = NULL;
Evas_Filter_Buffer *dx_in, *dx_out, *dy_in, *dy_out, *tmp = NULL;
int down_x = 1, down_y = 1;
int pad_x = 0, pad_y = 0;
double dx, dy;
/* GL blur implementation:
*
* - Create intermediate buffer T1, T2
* - Downscale input to buffer T1
* - Apply X blur kernel from T1 to T2
* - Apply Y blur kernel from T2 back to output
*
* In order to avoid sampling artifacts when moving or resizing a filtered
* snapshot, we make sure that we always sample and scale based on the same
* original pixels positions:
* - Input pixels must be aligned to down_x,down_y boundaries
* - T1/T2 buffer size is up to 1px larger than [input / scale_x,y]
*/
dx = rx;
dy = ry;
dx_in = in;
dy_out = out;
#if 1
if (type == EVAS_FILTER_BLUR_DEFAULT)
{
// Apply downscaling for large enough radii only.
down_x = 1 << evas_filter_smallest_pow2_larger_than(dx / 2) / 2;
down_y = 1 << evas_filter_smallest_pow2_larger_than(dy / 2) / 2;
// Downscaling to max 4 times for perfect picture quality (with
// the standard scaling fragment shader and SHD_SAM22).
if (down_x > 4) down_x = 4;
if (down_y > 4) down_y = 4;
if (down_x > 1 && down_y > 1)
{
int ww, hh;
pad_x = ctx->x % down_x;
pad_y = ctx->y % down_y;
ww = ceil((double) ctx->w / down_x) + 1;
hh = ceil((double) ctx->h / down_y) + 1;
tmp = evas_filter_temporary_buffer_get(ctx, ww, hh, in->alpha_only, EINA_TRUE);
if (!tmp) goto fail;
dx /= (double) down_x;
dy /= (double) down_y;
XDBG("Add GL downscale %d (%dx%d) -> %d (%dx%d)", in->id, in->w, in->h, tmp->id, tmp->w, tmp->h);
cmd = _command_new(ctx, EVAS_FILTER_MODE_BLEND, in, NULL, tmp);
if (!cmd) goto fail;
cmd->draw.fillmode = EVAS_FILTER_FILL_MODE_STRETCH_XY;
cmd->draw.scale.down = EINA_TRUE;
cmd->draw.scale.pad_x = pad_x;
cmd->draw.scale.pad_y = pad_y;
cmd->draw.scale.factor_x = down_x;
cmd->draw.scale.factor_y = down_y;
cmd->draw.alphaonly = alphaonly;
dx_in = tmp;
tmp = evas_filter_temporary_buffer_get(ctx, ww, hh, in->alpha_only, EINA_TRUE);
if (!tmp) goto fail;
dy_out = tmp;
}
}
#endif
if (dx && dy)
{
tmp = evas_filter_temporary_buffer_get(ctx, dx_in->w, dx_in->h, in->alpha_only, 1);
if (!tmp) goto fail;
dy_in = dx_out = tmp;
}
else
{
dx_out = out;
dy_in = in;
}
if (dx)
{
XDBG("Add GL blur %d -> %d (%.2fx%.2f px)", dx_in->id, dx_out->id, dx, 0.0);
cmd = _command_new(ctx, EVAS_FILTER_MODE_BLUR, dx_in, NULL, dx_out);
if (!cmd) goto fail;
cmd->blur.type = type;
cmd->blur.dx = dx;
cmd->blur.count = count;
cmd->draw.alphaonly = alphaonly;
}
if (dy)
{
XDBG("Add GL blur %d -> %d (%.2fx%.2f px)", dy_in->id, dy_out->id, 0.0, dy);
cmd = _command_new(ctx, EVAS_FILTER_MODE_BLUR, dy_in, NULL, dy_out);
if (!cmd) goto fail;
cmd->blur.type = type;
cmd->blur.dy = dy;
cmd->blur.count = count;
cmd->draw.alphaonly = alphaonly;
}
EINA_SAFETY_ON_NULL_RETURN_VAL(cmd, NULL);
if (cmd->output != out)
{
XDBG("Add GL upscale %d (%dx%d) -> %d (%dx%d)",
cmd->output->id, cmd->output->w, cmd->output->h, out->id, out->w, out->h);
cmd = _command_new(ctx, EVAS_FILTER_MODE_BLEND, cmd->output, NULL, out);
if (!cmd) goto fail;
cmd->draw.fillmode = EVAS_FILTER_FILL_MODE_STRETCH_XY;
cmd->draw.scale.down = EINA_FALSE;
cmd->draw.scale.pad_x = pad_x;
cmd->draw.scale.pad_y = pad_y;
cmd->draw.scale.factor_x = down_x;
cmd->draw.scale.factor_y = down_y;
cmd->draw.alphaonly = alphaonly;
}
cmd->draw.ox = ox;
cmd->draw.oy = oy;
DRAW_COLOR_SET(R, G, B, A);
cmd->draw.rop = (in == out) ? EFL_GFX_RENDER_OP_COPY : EFL_GFX_RENDER_OP_BLEND;
_filter_buffer_unlock_all(ctx);
return cmd;
fail:
ERR("Failed to add blur");
_filter_buffer_unlock_all(ctx);
return NULL;
}
static Eina_Bool
_blur_support_gl(Evas_Filter_Context *ctx, Evas_Filter_Buffer *in, Evas_Filter_Buffer *out)
{
Evas_Filter_Command cmd = {};
cmd.input = in;
cmd.output = out;
cmd.mode = EVAS_FILTER_MODE_BLUR;
cmd.ctx = ctx;
cmd.blur.type = EVAS_FILTER_BLUR_GAUSSIAN;
cmd.blur.dx = 5;
return cmd.ENFN->gfx_filter_supports(_evas_engine_context(cmd.ctx->evas), &cmd) == EVAS_FILTER_SUPPORT_GL;
}
Evas_Filter_Command *
evas_filter_command_blur_add(Evas_Filter_Context *ctx, void *drawctx,
int inbuf, int outbuf, Evas_Filter_Blur_Type type,
int dx, int dy, int ox, int oy, int count,
Eina_Bool alphaonly)
{
Evas_Filter_Buffer *in = NULL, *out = NULL, *tmp = NULL, *in_dy = NULL;
Evas_Filter_Buffer *out_dy = NULL, *out_dx = NULL;
Evas_Filter_Buffer *copybuf = NULL, *blendbuf = NULL;
Evas_Filter_Command *cmd = NULL;
int R, G, B, A, render_op;
Eina_Bool override;
DATA32 color;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(drawctx, NULL);
if (dx < 0) dx = 0;
if (dy < 0) dy = 0;
if (!dx && !dy)
{
XDBG("Changing 0px blur into simple blend");
return evas_filter_command_blend_add(ctx, drawctx, inbuf, outbuf, ox, oy, EVAS_FILTER_FILL_MODE_NONE, alphaonly);
}
in = _filter_buffer_get(ctx, inbuf);
EINA_SAFETY_ON_FALSE_GOTO(in, fail);
out = _filter_buffer_get(ctx, outbuf);
EINA_SAFETY_ON_FALSE_GOTO(out, fail);
ENFN->context_color_get(ENC, drawctx, &R, &G, &B, &A);
color = ARGB_JOIN(A, R, G, B);
if (!color)
{
DBG("Blur with transparent color. Nothing to do.");
return _command_new(ctx, EVAS_FILTER_MODE_SKIP, NULL, NULL, NULL);
}
if (_blur_support_gl(ctx, in, out))
return evas_filter_command_blur_add_gl(ctx, in, out, type, dx, dy, ox, oy,
count, R, G, B, A, alphaonly);
// Note (SW engine):
// The basic blur operation overrides the pixels in the target buffer,
// only supports one direction (X or Y) and no offset. As a consequence
// most cases require intermediate work buffers.
if (in == out) out->dirty = EINA_FALSE;
render_op = ENFN->context_render_op_get(ENC, drawctx);
override = (render_op == EVAS_RENDER_COPY);
switch (type)
{
case EVAS_FILTER_BLUR_GAUSSIAN:
count = 1;
break;
case EVAS_FILTER_BLUR_BOX:
count = MIN(MAX(1, count), 6);
break;
case EVAS_FILTER_BLUR_DEFAULT:
{
/* In DEFAULT mode we cheat, depending on the size of the kernel:
* For 1px to 2px, use true Gaussian blur.
* For 3px to 6px, use two Box blurs.
* For more than 6px, use three Box blurs.
* This will give both nicer and MUCH faster results than Gaussian.
*
* NOTE: This step should be avoided in GL.
*/
int tmp_out = outbuf;
int tmp_in = inbuf;
int tmp_ox = ox;
int tmp_oy = oy;
// For 2D blur: create intermediate buffer
if (dx && dy)
{
tmp = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 1);
if (!tmp) goto fail;
tmp_in = tmp_out = tmp->id;
tmp_ox = tmp_oy = 0;
}
// X box blur
if (dx)
{
if (dx <= 2)
type = EVAS_FILTER_BLUR_GAUSSIAN;
else
type = EVAS_FILTER_BLUR_BOX;
if (dy) ENFN->context_color_set(ENC, drawctx, 255, 255, 255, 255);
cmd = evas_filter_command_blur_add(ctx, drawctx, inbuf, tmp_out,
type, dx, 0, tmp_ox, tmp_oy, 0,
alphaonly);
if (!cmd) goto fail;
cmd->blur.auto_count = EINA_TRUE;
if (dy) ENFN->context_color_set(ENC, drawctx, R, G, B, A);
}
// Y box blur
if (dy)
{
if (dy <= 2)
type = EVAS_FILTER_BLUR_GAUSSIAN;
else
type = EVAS_FILTER_BLUR_BOX;
if (dx && (inbuf == outbuf))
ENFN->context_render_op_set(ENC, drawctx, EVAS_RENDER_COPY);
cmd = evas_filter_command_blur_add(ctx, drawctx, tmp_in, outbuf,
type, 0, dy, ox, oy, 0,
alphaonly);
if (dx && (inbuf == outbuf))
ENFN->context_render_op_set(ENC, drawctx, render_op);
if (!cmd) goto fail;
cmd->blur.auto_count = EINA_TRUE;
}
return cmd;
}
default:
CRI("Not implemented yet!");
goto fail;
}
// For 2D blur: create intermediate buffer between X and Y passes
if (dx && dy)
{
// If there's an offset: create intermediate buffer before offset blend
if (ox || oy)
{
copybuf = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 0);
if (!copybuf) goto fail;
}
// Intermediate buffer between X and Y passes
tmp = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 0);
if (!tmp) goto fail;
if (in == out)
{
// IN = OUT and 2-D blur. IN -blur-> TMP -blur-> IN.
out_dx = tmp;
in_dy = tmp;
out_dy = copybuf ? copybuf : in;
}
else
{
// IN != OUT and 2-D blur. IN -blur-> TMP -blur-> OUT.
out_dx = tmp;
in_dy = tmp;
out_dy = copybuf ? copybuf : out;
}
}
else if (dx)
{
// X blur only
if (in == out)
{
// IN = OUT and 1-D blur. IN -blur-> TMP -copy-> IN.
tmp = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 0);
if (!tmp) goto fail;
copybuf = tmp;
out_dx = tmp;
}
else if (ox || oy || (color != 0xFFFFFFFF))
{
// IN != OUT and 1-D blur. IN -blur-> TMP -blend-> OUT.
tmp = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 0);
if (!tmp) goto fail;
blendbuf = tmp;
out_dx = tmp;
}
else if (out->dirty)
{
// IN != OUT and 1-D blur. IN -blur-> TMP -blend-> OUT.
tmp = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 0);
if (!tmp) goto fail;
blendbuf = tmp;
out_dx = tmp;
}
else
{
// IN != OUT and 1-D blur. IN -blur-> OUT.
out_dx = out;
}
}
else
{
// Y blur only
if (in == out)
{
// IN = OUT and 1-D blur. IN -blur-> TMP -copy-> IN.
tmp = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 0);
if (!tmp) goto fail;
copybuf = tmp;
in_dy = in;
out_dy = tmp;
}
else if (ox || oy || (color != 0xFFFFFFFF))
{
// IN != OUT and 1-D blur. IN -blur-> TMP -blend-> IN.
tmp = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 0);
if (!tmp) goto fail;
if (override)
copybuf = tmp;
else
blendbuf = tmp;
in_dy = in;
out_dy = tmp;
}
else if (out->dirty && !override)
{
// IN != OUT and 1-D blur. IN -blur-> TMP -blend-> OUT.
tmp = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only, 0);
if (!tmp) goto fail;
blendbuf = tmp;
in_dy = in;
out_dy = tmp;
}
else
{
// IN != OUT and 1-D blur. IN -blur-> OUT.
in_dy = in;
out_dy = out;
}
}
if (dx)
{
XDBG("Add horizontal blur %d -> %d (%dpx)", in->id, out_dx->id, dx);
cmd = _command_new(ctx, EVAS_FILTER_MODE_BLUR, in, NULL, out_dx);
if (!cmd) goto fail;
cmd->blur.type = type;
cmd->blur.dx = dx;
cmd->blur.dy = 0;
cmd->blur.count = count;
if (!dy) DRAW_COLOR_SET(R, G, B, A);
}
if (dy)
{
XDBG("Add vertical blur %d -> %d (%dpx)", in_dy->id, out_dy->id, dy);
cmd = _command_new(ctx, EVAS_FILTER_MODE_BLUR, in_dy, NULL, out_dy);
if (!cmd) goto fail;
cmd->blur.type = type;
cmd->blur.dx = 0;
cmd->blur.dy = dy;
cmd->blur.count = count;
DRAW_COLOR_SET(R, G, B, A);
}
if (blendbuf)
{
Evas_Filter_Command *blendcmd;
XDBG("Add extra blend %d -> %d", blendbuf->id, out->id);
blendcmd = evas_filter_command_blend_add(ctx, drawctx,
blendbuf->id, out->id, ox, oy,
EVAS_FILTER_FILL_MODE_NONE,
alphaonly);
if (!blendcmd) goto fail;
ox = oy = 0;
}
else if (copybuf)
{
Evas_Filter_Command *copycmd;
XDBG("Add extra copy %d -> %d: offset: %d,%d", copybuf->id, out->id, ox, oy);
ENFN->context_color_set(ENC, drawctx, 255, 255, 255, 255);
ENFN->context_render_op_set(ENC, drawctx, EVAS_RENDER_COPY);
copycmd = evas_filter_command_blend_add(ctx, drawctx,
copybuf->id, out->id, ox, oy,
EVAS_FILTER_FILL_MODE_NONE,
alphaonly);
ENFN->context_color_set(ENC, drawctx, R, G, B, A);
ENFN->context_render_op_set(ENC, drawctx, render_op);
if (!copycmd) goto fail;
ox = oy = 0;
}
out->dirty = EINA_TRUE;
_filter_buffer_unlock_all(ctx);
return cmd;
fail:
ERR("Failed to add blur");
_filter_buffer_unlock_all(ctx);
return NULL;
}
Evas_Filter_Command *
evas_filter_command_blend_add(Evas_Filter_Context *ctx, void *drawctx,
int inbuf, int outbuf, int ox, int oy,
Evas_Filter_Fill_Mode fillmode,
Eina_Bool alphaonly)
{
Evas_Filter_Command *cmd;
Evas_Filter_Buffer *in, *out;
Eina_Bool copy;
int R, G, B, A;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
if (inbuf == outbuf)
{
XDBG("Skipping NOP blend operation %d --> %d", inbuf, outbuf);
return NULL;
}
in = _filter_buffer_get(ctx, inbuf);
if (!in)
{
ERR("Buffer %d does not exist [input].", inbuf);
return NULL;
}
out = _filter_buffer_get(ctx, outbuf);
if (!out)
{
ERR("Buffer %d does not exist [output].", outbuf);
return NULL;
}
cmd = _command_new(ctx, EVAS_FILTER_MODE_BLEND, in, NULL, out);
if (!cmd) return NULL;
if (ENFN->context_render_op_get(ENC, drawctx) == EVAS_RENDER_COPY)
copy = EINA_TRUE;
else
copy = EINA_FALSE;
ENFN->context_color_get(ENC, drawctx, &R, &G, &B, &A);
DRAW_COLOR_SET(R, G, B, A);
DRAW_FILL_SET(fillmode);
cmd->draw.ox = ox;
cmd->draw.oy = oy;
cmd->draw.rop = copy ? EFL_GFX_RENDER_OP_COPY : EFL_GFX_RENDER_OP_BLEND;
cmd->draw.alphaonly = alphaonly;
cmd->draw.clip_use =
!!ENFN->context_clip_get(ENC, drawctx,
&cmd->draw.clip.x, &cmd->draw.clip.y,
&cmd->draw.clip.w, &cmd->draw.clip.h);
XDBG("Add %s %d -> %d: offset %d,%d, color: %d,%d,%d,%d",
copy ? "copy" : "blend", in->id, out->id, ox, oy, R, G, B, A);
if (cmd->draw.clip_use)
XDBG("Draw clip: %d,%d,%d,%d", cmd->draw.clip.x, cmd->draw.clip.y,
cmd->draw.clip.w, cmd->draw.clip.h);
out->dirty = EINA_TRUE;
return cmd;
}
Evas_Filter_Command *
evas_filter_command_grow_add(Evas_Filter_Context *ctx, void *draw_context,
int inbuf, int outbuf, int radius, Eina_Bool smooth,
Eina_Bool alphaonly)
{
Evas_Filter_Command *blurcmd = NULL, *threshcmd = NULL, *blendcmd;
Evas_Filter_Buffer *tmp, *in, *out;
int diam = abs(radius) * 2 + 1;
DATA8 curve[256] = {0};
int tmin = 0, growbuf;
EINA_SAFETY_ON_NULL_GOTO(ctx, fail);
if (!radius)
{
XDBG("Changing 0px grow into simple blend");
return evas_filter_command_blend_add(ctx, draw_context, inbuf, outbuf, 0, 0,
EVAS_FILTER_FILL_MODE_NONE, alphaonly);
}
in = _filter_buffer_get(ctx, inbuf);
EINA_SAFETY_ON_NULL_GOTO(in, fail);
out = _filter_buffer_get(ctx, outbuf);
EINA_SAFETY_ON_NULL_GOTO(out, fail);
if ((inbuf != outbuf) && out->dirty)
{
tmp = evas_filter_temporary_buffer_get(ctx, in->w, in->h, in->alpha_only, 1);
EINA_SAFETY_ON_NULL_GOTO(tmp, fail);
growbuf = tmp->id;
}
else
growbuf = outbuf;
blurcmd = evas_filter_command_blur_add(ctx, draw_context, inbuf, growbuf,
EVAS_FILTER_BLUR_DEFAULT,
abs(radius), abs(radius), 0, 0, 0,
alphaonly);
EINA_SAFETY_ON_NULL_GOTO(blurcmd, fail);
if (diam > 255) diam = 255;
if (radius > 0)
tmin = 255 / diam;
else if (radius < 0)
tmin = 256 - (255 / diam);
if (!smooth)
memset(curve + tmin, 255, 256 - tmin);
else
{
int k, start, end, range;
// This is pretty experimental.
range = MAX(2, 12 - radius);
start = ((tmin > range) ? (tmin - range) : 0);
end = ((tmin < (256 - range)) ? (tmin + range) : 256);
for (k = start; k < end; k++)
curve[k] = ((k - start) * 255) / (end - start);
if (end < 256)
memset(curve + end, 255, 256 - end);
}
/* Use a temp buffer here. Becuase curve_add is using a temp buffer as well
if inbuf and outbuf are same and doing blend_add. Then grow_add will do
blend_add twice. Using a temp buffer will save a calling blend_add */
tmp = evas_filter_temporary_buffer_get(ctx, in->w, in->h, in->alpha_only, 1);
EINA_SAFETY_ON_NULL_GOTO(tmp, fail);
threshcmd = evas_filter_command_curve_add(ctx, draw_context, growbuf, tmp->id,
curve, EVAS_FILTER_CHANNEL_ALPHA);
EINA_SAFETY_ON_NULL_GOTO(threshcmd, fail);
blendcmd = evas_filter_command_blend_add(ctx, draw_context, tmp->id,
outbuf, 0, 0,
EVAS_FILTER_FILL_MODE_NONE,
alphaonly);
EINA_SAFETY_ON_NULL_GOTO(blendcmd, fail);
return blurcmd;
fail:
ERR("Failed to add grow");
if (threshcmd) _command_del(ctx, threshcmd);
if (blurcmd) _command_del(ctx, blurcmd);
return NULL;
}
Evas_Filter_Command *
evas_filter_command_curve_add(Evas_Filter_Context *ctx,
void *draw_context EINA_UNUSED,
int inbuf, int outbuf, DATA8 *curve,
Evas_Filter_Channel channel)
{
Evas_Filter_Command *cmd, *blendcmd;
Evas_Filter_Buffer *in, *out, *tmp = NULL, *curve_out;
DATA8 *copy;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(curve, NULL);
in = _filter_buffer_get(ctx, inbuf);
out = _filter_buffer_get(ctx, outbuf);
EINA_SAFETY_ON_NULL_RETURN_VAL(in, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(out, NULL);
if (in->alpha_only != out->alpha_only)
WRN("Incompatible formats for color curves, implicit conversion will be "
"slow and may not produce the desired output.");
if (in == out)
{
tmp = evas_filter_temporary_buffer_get(ctx, in->w, in->h, in->alpha_only, 1);
if (!tmp) return NULL;
curve_out = tmp;
}
else curve_out = out;
XDBG("Add curve %d -> %d", in->id, curve_out->id);
copy = malloc(256 * sizeof(DATA8));
if (!copy) return NULL;
cmd = _command_new(ctx, EVAS_FILTER_MODE_CURVE, in, NULL, curve_out);
if (!cmd)
{
_free(copy);
return NULL;
}
memcpy(copy, curve, 256 * sizeof(DATA8));
cmd->curve.data = copy;
if (cmd->input->alpha_only)
cmd->curve.channel = EVAS_FILTER_CHANNEL_ALPHA;
else
cmd->curve.channel = channel;
if (tmp)
{
blendcmd = evas_filter_command_blend_add(ctx, draw_context, curve_out->id,
out->id, 0, 0,
EVAS_FILTER_FILL_MODE_NONE,
out->alpha_only);
if (!blendcmd)
{
_command_del(ctx, cmd);
return NULL;
}
}
return cmd;
}
Evas_Filter_Command *
evas_filter_command_displacement_map_add(Evas_Filter_Context *ctx,
void *draw_context EINA_UNUSED,
int inbuf, int outbuf, int dispbuf,
Evas_Filter_Displacement_Flags flags,
int intensity,
Evas_Filter_Fill_Mode fillmode)
{
Evas_Filter_Buffer *in, *out, *map, *tmp = NULL, *disp_out;
Evas_Filter_Command *cmd = NULL;
Eina_Bool alphaonly = EINA_FALSE;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
EINA_SAFETY_ON_FALSE_RETURN_VAL(intensity >= 0, NULL);
in = _filter_buffer_get(ctx, inbuf);
out = _filter_buffer_get(ctx, outbuf);
map = _filter_buffer_get(ctx, dispbuf);
EINA_SAFETY_ON_NULL_RETURN_VAL(in, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(out, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(map, NULL);
if (in->alpha_only != out->alpha_only)
DBG("Different color formats, implicit conversion may be slow");
if (map->alpha_only)
{
WRN("Displacement map is not an RGBA buffer, X and Y axes will be "
"displaced together.");
}
if (in == out)
{
tmp = evas_filter_temporary_buffer_get(ctx, in->w, in->h, in->alpha_only, 1);
if (!tmp) return NULL;
disp_out = tmp;
}
else disp_out = out;
cmd = _command_new(ctx, EVAS_FILTER_MODE_DISPLACE, in, map, disp_out);
if (!cmd) goto fail;
DRAW_FILL_SET(fillmode);
cmd->displacement.flags = flags & EVAS_FILTER_DISPLACE_BITMASK;
cmd->displacement.intensity = intensity;
cmd->draw.rop = _evas_to_gfx_render_op(ENFN->context_render_op_get(ENC, draw_context));
if (tmp)
{
Evas_Filter_Command *fillcmd;
fillcmd = evas_filter_command_blend_add(ctx, draw_context, disp_out->id,
out->id, 0, 0,
EVAS_FILTER_FILL_MODE_NONE,
alphaonly);
if (!fillcmd) goto fail;
}
_filter_buffer_unlock_all(ctx);
return cmd;
fail:
_filter_buffer_unlock_all(ctx);
_command_del(ctx, cmd);
return NULL;
}
Evas_Filter_Command *
evas_filter_command_mask_add(Evas_Filter_Context *ctx, void *draw_context,
int inbuf, int maskbuf, int outbuf,
Evas_Filter_Fill_Mode fillmode)
{
Evas_Filter_Command *cmd;
Evas_Filter_Buffer *in, *out, *mask;
Efl_Gfx_Render_Op render_op;
int R, G, B, A;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
render_op = _evas_to_gfx_render_op(ENFN->context_render_op_get(ENC, draw_context));
ENFN->context_color_get(ENC, draw_context, &R, &G, &B, &A);
in = _filter_buffer_get(ctx, inbuf);
out = _filter_buffer_get(ctx, outbuf);
mask = _filter_buffer_get(ctx, maskbuf);
EINA_SAFETY_ON_NULL_RETURN_VAL(in, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(out, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(mask, NULL);
cmd = _command_new(ctx, EVAS_FILTER_MODE_MASK, in, mask, out);
if (!cmd) return NULL;
cmd->draw.rop = render_op;
DRAW_COLOR_SET(R, G, B, A);
DRAW_FILL_SET(fillmode);
return cmd;
}
Evas_Filter_Command *
evas_filter_command_bump_map_add(Evas_Filter_Context *ctx,
void *draw_context EINA_UNUSED,
int inbuf, int bumpbuf, int outbuf,
float xyangle, float zangle, float elevation,
float sf,
DATA32 black, DATA32 color, DATA32 white,
Evas_Filter_Bump_Flags flags,
Evas_Filter_Fill_Mode fillmode)
{
Evas_Filter_Command *cmd;
Evas_Filter_Buffer *in, *out, *map;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
in = _filter_buffer_get(ctx, inbuf);
out = _filter_buffer_get(ctx, outbuf);
map = _filter_buffer_get(ctx, bumpbuf);
EINA_SAFETY_ON_NULL_RETURN_VAL(in, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(out, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(map, NULL);
if (!map->alpha_only)
DBG("Bump map is not an Alpha buffer, implicit conversion may be slow");
// FIXME: Boo!
if (!in->alpha_only)
WRN("RGBA bump map support is not implemented! This will trigger conversion.");
// FIXME: Must ensure in != out
EINA_SAFETY_ON_FALSE_RETURN_VAL(in != out, NULL);
EINA_SAFETY_ON_FALSE_RETURN_VAL(map != out, NULL);
cmd = _command_new(ctx, EVAS_FILTER_MODE_BUMP, in, map, out);
if (!cmd) return NULL;
DRAW_FILL_SET(fillmode);
cmd->bump.xyangle = xyangle;
cmd->bump.zangle = zangle;
cmd->bump.specular_factor = sf;
cmd->bump.dark = black;
cmd->bump.color = color;
cmd->bump.white = white;
cmd->bump.elevation = elevation;
cmd->bump.compensate = !!(flags & EVAS_FILTER_BUMP_COMPENSATE);
return cmd;
}
Evas_Filter_Command *
evas_filter_command_transform_add(Evas_Filter_Context *ctx,
void *draw_context EINA_UNUSED,
int inbuf, int outbuf,
Evas_Filter_Transform_Flags flags,
int ox, int oy)
{
Evas_Filter_Command *cmd;
Evas_Filter_Buffer *in, *out;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
in = _filter_buffer_get(ctx, inbuf);
out = _filter_buffer_get(ctx, outbuf);
EINA_SAFETY_ON_NULL_RETURN_VAL(in, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(out, NULL);
cmd = _command_new(ctx, EVAS_FILTER_MODE_TRANSFORM, in, NULL, out);
if (!cmd) return NULL;
DRAW_COLOR_SET(255, 255, 255, 255);
cmd->transform.flags = flags;
cmd->draw.ox = ox;
cmd->draw.oy = oy;
if (in->alpha_only == out->alpha_only)
{
DBG("Incompatible buffer formats, will trigger implicit conversion.");
cmd->draw.rop = EFL_GFX_RENDER_OP_COPY;
}
else
cmd->draw.rop = EFL_GFX_RENDER_OP_BLEND;
return cmd;
}
void
evas_filter_context_obscured_region_set(Evas_Filter_Context *ctx, Eina_Rectangle rect)
{
ctx->obscured.real = rect;
}
/* Final target */
Eina_Bool
evas_filter_target_set(Evas_Filter_Context *ctx, void *draw_context,
void *surface, int x, int y, const RGBA_Map *map)
{
void *mask = NULL;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, EINA_FALSE);
ctx->target.surface = ENFN->image_ref(ENC, surface);
ctx->target.x = x;
ctx->target.y = y;
ctx->target.clip_use = ENFN->context_clip_get
(ENC, draw_context, &ctx->target.cx, &ctx->target.cy,
&ctx->target.cw, &ctx->target.ch);
ctx->target.color_use = ENFN->context_multiplier_get
(ENC, draw_context, &ctx->target.r, &ctx->target.g,
&ctx->target.b, &ctx->target.a);
if (ctx->target.r == 255 && ctx->target.g == 255 &&
ctx->target.b == 255 && ctx->target.a == 255)
ctx->target.color_use = EINA_FALSE;
ctx->target.rop = ENFN->context_render_op_get(ENC, draw_context);
_free(ctx->target.map);
if (!map) ctx->target.map = NULL;
else
{
size_t len = sizeof(RGBA_Map) + sizeof(RGBA_Map_Point) * (map->count - 1);
ctx->target.map = malloc(len);
memcpy(ctx->target.map, map, len);
}
ENFN->context_clip_image_get
(ENC, draw_context, &mask, &ctx->target.mask_x, &ctx->target.mask_y);
if (ctx->target.mask)
ctx->evas->engine.func->image_free(_evas_engine_context(ctx->evas), ctx->target.mask);
ctx->target.mask = mask; // FIXME: why no ref???
return EINA_TRUE;
}
static Eina_Bool
_filter_target_render(void *engine, void *output, Evas_Filter_Context *ctx)
{
Evas_Filter_Buffer *src;
void *drawctx, *image = NULL, *surface;
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx->target.surface, EINA_FALSE);
drawctx = ENFN->context_new(engine);
surface = ctx->target.surface;
src = _filter_buffer_get(ctx, EVAS_FILTER_BUFFER_OUTPUT_ID);
EINA_SAFETY_ON_NULL_RETURN_VAL(src, EINA_FALSE);
image = evas_ector_buffer_drawable_image_get(src->buffer);
EINA_SAFETY_ON_NULL_GOTO(image, fail);
// FIXME: Use ector buffer RENDERER here
if (ctx->target.clip_use)
{
ENFN->context_clip_set(engine, drawctx, ctx->target.cx, ctx->target.cy,
ctx->target.cw, ctx->target.ch);
}
if (ctx->target.color_use)
{
ENFN->context_multiplier_set(engine, drawctx,
ctx->target.r, ctx->target.g,
ctx->target.b, ctx->target.a);
}
if (ctx->target.mask)
{
ENFN->context_clip_image_set(engine, drawctx, ctx->target.mask,
ctx->target.mask_x, ctx->target.mask_y,
ctx->evas, EINA_FALSE);
}
ENFN->context_render_op_set(engine, drawctx, ctx->target.rop);
if (ctx->target.map)
{
ENFN->image_map_draw(engine, output, drawctx, surface, image,
ctx->target.map, EINA_TRUE, 0, EINA_FALSE);
}
else
{
ENFN->image_draw(engine, output, drawctx, surface, image,
0, 0, src->w, src->h,
ctx->target.x, ctx->target.y, src->w, src->h,
EINA_TRUE, EINA_FALSE);
}
ENFN->context_free(engine, drawctx);
evas_ector_buffer_engine_image_release(src->buffer, image);
ENFN->image_free(engine, surface);
ctx->target.surface = NULL;
return EINA_TRUE;
fail:
ENFN->image_free(engine, surface);
ctx->target.surface = NULL;
ERR("Failed to render filter to target canvas!");
return EINA_FALSE;
}
/* Font drawing stuff */
Eina_Bool
evas_filter_font_draw(Evas_Filter_Context *ctx,
void *engine, void *output, void *draw_context, int bufid,
Evas_Font_Set *font, int x, int y,
Evas_Text_Props *text_props, Eina_Bool do_async)
{
Eina_Bool async_unref;
Evas_Filter_Buffer *fb;
void *surface = NULL;
fb = _filter_buffer_get(ctx, bufid);
EINA_SAFETY_ON_NULL_RETURN_VAL(fb, EINA_FALSE);
surface = evas_filter_buffer_backing_get(ctx, bufid, EINA_TRUE);
EINA_SAFETY_ON_NULL_RETURN_VAL(surface, EINA_FALSE);
// Copied from evas_font_draw_async_check
async_unref = ENFN->font_draw(engine, output, draw_context, surface,
font, x, y, fb->w, fb->h, fb->w, fb->h,
text_props, do_async);
if (do_async && async_unref)
{
evas_common_font_glyphs_ref(text_props->glyphs);
evas_unref_queue_glyph_put(ctx->evas, text_props->glyphs);
}
evas_ector_buffer_engine_image_release(fb->buffer, surface);
return EINA_TRUE;
}
/* Clip full input rect (0, 0, sw, sh) to target (dx, dy, dw, dh)
* and get source's clipped sx, sy as well as destination x, y, cols and rows */
void
_clip_to_target(int *sx /* OUT */, int *sy /* OUT */, int sw, int sh,
int ox, int oy, int dw, int dh,
int *dx /* OUT */, int *dy /* OUT */,
int *rows /* OUT */, int *cols /* OUT */)
{
if (ox > 0)
{
(*sx) = 0;
(*dx) = ox;
(*cols) = sw;
if (((*dx) + (*cols)) > (dw))
(*cols) = dw - (*dx);
}
else if (ox < 0)
{
(*dx) = 0;
(*sx) = (-ox);
(*cols) = sw - (*sx);
if ((*cols) > dw) (*cols) = dw;
}
else
{
(*sx) = 0;
(*dx) = 0;
(*cols) = sw;
if ((*cols) > dw) (*cols) = dw;
}
if (oy > 0)
{
(*sy) = 0;
(*dy) = oy;
(*rows) = sh;
if (((*dy) + (*rows)) > (dh))
(*rows) = dh - (*dy);
}
else if (oy < 0)
{
(*dy) = 0;
(*sy) = (-oy);
(*rows) = sh - (*sy);
if ((*rows) > dh) (*rows) = dh;
}
else
{
(*sy) = 0;
(*dy) = 0;
(*rows) = sh;
if ((*rows) > dh) (*rows) = dh;
}
if ((*cols) < 0) *cols = 0;
if ((*rows) < 0) *rows = 0;
}
#ifdef FILTERS_DEBUG
static const char *
_filter_name_get(int mode)
{
#define FNAME(a) case EVAS_FILTER_MODE_ ## a: return "EVAS_FILTER_MODE_" #a
switch (mode)
{
FNAME(SKIP);
FNAME(BLEND);
FNAME(BLUR);
FNAME(CURVE);
FNAME(DISPLACE);
FNAME(MASK);
FNAME(BUMP);
FNAME(FILL);
default: return "INVALID";
}
#undef FNAME
}
#endif
static Eina_Bool
_filter_command_run(Evas_Filter_Command *cmd)
{
Evas_Filter_Support support = EVAS_FILTER_SUPPORT_NONE;
if (cmd->mode == EVAS_FILTER_MODE_SKIP)
return EINA_TRUE;
EINA_SAFETY_ON_NULL_RETURN_VAL(cmd->output, EINA_FALSE);
EINA_SAFETY_ON_NULL_RETURN_VAL(cmd->input, EINA_FALSE);
#ifdef FILTERS_DEBUG
XDBG("Command %d (%s): %d [%d] --> %d",
cmd->id, _filter_name_get(cmd->mode),
cmd->input->id, cmd->mask ? cmd->mask->id : 0, cmd->output->id);
#endif
if (!cmd->input->w && !cmd->input->h
&& (cmd->mode != EVAS_FILTER_MODE_FILL))
{
XDBG("Skipping processing of empty input buffer (size 0x0)");
return EINA_TRUE;
}
if ((cmd->output->w <= 0) || (cmd->output->h <= 0))
{
ERR("Output size invalid: %dx%d", cmd->output->w, cmd->output->h);
return EINA_FALSE;
}
support = cmd->ENFN->gfx_filter_supports(CMD_ENC, cmd);
if (support == EVAS_FILTER_SUPPORT_NONE)
{
ERR("No function to process this filter (mode %d)", cmd->mode);
return EINA_FALSE;
}
return cmd->ENFN->gfx_filter_process(CMD_ENC, cmd);
}
static Eina_Bool
_filter_chain_run(void *engine, void *output, Evas_Filter_Context *ctx)
{
Evas_Filter_Command *cmd;
Eina_Bool ok = EINA_FALSE;
DEBUG_TIME_BEGIN();
EINA_INLIST_FOREACH(ctx->commands, cmd)
{
ok = _filter_command_run(cmd);
if (!ok)
{
ERR("Filter processing failed!");
goto end;
}
}
ok = _filter_target_render(engine, output, ctx);
end:
ctx->running = EINA_FALSE;
DEBUG_TIME_END();
ctx->post_run.cb(ctx, ctx->post_run.data, ok);
return ok;
}
typedef struct _Filter_Thread_Data Filter_Thread_Data;
struct _Filter_Thread_Data
{
void *engine;
void *output;
Evas_Filter_Context *ctx;
};
static void
_filter_thread_run_cb(void *data)
{
Filter_Thread_Data *ftd = data;
_filter_chain_run(ftd->engine, ftd->output, ftd->ctx);
_free(ftd);
}
static void
_filter_obscured_region_calc(Evas_Filter_Context *ctx)
{
Eina_Rectangle rect = ctx->obscured.real;
// left
if (rect.x > 0)
{
rect.x += ctx->pad.calculated.l;
rect.w -= ctx->pad.calculated.l;
}
else
{
rect.w -= (-rect.x);
rect.x = 0;
}
if (rect.w < 0) rect.w = 0;
// right
if ((rect.x + rect.w) <= ctx->w)
rect.w -= ctx->pad.calculated.r;
else
rect.w = ctx->w - rect.x;
// top
if (rect.y > 0)
{
rect.y += ctx->pad.calculated.t;
rect.h -= ctx->pad.calculated.t;
}
else
{
rect.h -= (-rect.y);
rect.y = 0;
}
if (rect.h < 0) rect.h = 0;
// bottom
if ((rect.y + rect.h) <= ctx->h)
rect.h -= ctx->pad.calculated.b;
else
rect.h = ctx->h - rect.y;
if ((rect.w <= 0) || (rect.h <= 0))
memset(&rect, 0, sizeof(rect));
ctx->obscured.effective = rect;
}
Eina_Bool
evas_filter_context_run(void *engine, void *output, Evas_Filter_Context *ctx)
{
evas_filter_context_ref(ctx);
_filter_obscured_region_calc(ctx);
ctx->run_count++;
ctx->running = EINA_TRUE;
if (ctx->async)
{
Filter_Thread_Data *ftd;
ftd = calloc(1, sizeof(*ftd));
ftd->engine = engine;
ftd->output = output;
ftd->ctx = ctx;
evas_thread_queue_flush(_filter_thread_run_cb, ftd);
return EINA_TRUE;
}
return _filter_chain_run(engine, output, ctx);
}
/* Logging */
static int init_cnt = 0;
int _evas_filter_log_dom = 0;
void
evas_filter_init(void)
{
if ((init_cnt++) > 0) return;
_evas_filter_log_dom = eina_log_domain_register("evas_filter", EVAS_FILTER_LOG_COLOR);
evas_filter_mixin_init();
}
void
evas_filter_shutdown(void)
{
if ((--init_cnt) > 0) return;
evas_filter_parser_shutdown();
evas_filter_mixin_shutdown();
eina_log_domain_unregister(_evas_filter_log_dom);
_evas_filter_log_dom = 0;
}
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