forked from enlightenment/efl
179 lines
5.3 KiB
C
179 lines
5.3 KiB
C
#ifndef EVAS_FILTER_PRIVATE_H
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#define EVAS_FILTER_PRIVATE_H
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#include "evas_filter.h"
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#include "evas_private.h"
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// This is a potential optimization.
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#define DIV_USING_BITSHIFT 1
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#ifdef LITTLE_ENDIAN
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#define ALPHA 3
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#define RGB0 0
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#define RGB3 3
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#define RED 2
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#define GREEN 1
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#define BLUE 0
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#else
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#define ALPHA 0
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#define RGB0 1
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#define RGB3 4
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#define RED 0
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#define GREEN 1
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#define BLUE 2
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#endif
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// RGBA = (((a) << 24) + ((r) << 16) + ((g) << 8) + (b))
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#define ALPHA_OF(a) ((a) >> 24)
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#define RED_OF(a) (((a) >> 16) & 0xff)
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#define GREEN_OF(a) (((a) >> 8) & 0xff)
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#define BLUE_OF(a) ((a) & 0xff)
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// Helpers
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#define ENFN ctx->evas->engine.func
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#define ENDT ctx->evas->engine.data.output
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#define BUFFERS_LOCK() do { if (cmd->input) cmd->input->locked = 1; if (cmd->output) cmd->output->locked = 1; if (cmd->mask) cmd->mask->locked = 1; } while (0)
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#define BUFFERS_UNLOCK() do { if (cmd->input) cmd->input->locked = 0; if (cmd->output) cmd->output->locked = 0; if (cmd->mask) cmd->mask->locked = 0; } while (0)
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typedef enum _Evas_Filter_Interpolation_Mode Evas_Filter_Interpolation_Mode;
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struct _Evas_Filter_Context
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{
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Evas_Public_Data *evas;
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Eina_Inlist *commands;
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Eina_List *buffers; // Evas_Filter_Buffer *
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int last_buffer_id;
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int last_command_id;
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// Variables changing at each run
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int w, h; // Dimensions of the input/output buffers
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int padl, padt, padr, padb; // Padding in the current input/output buffers
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struct
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{
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/** Post-processing callback. The context can be safely destroyed here. */
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Evas_Filter_Cb cb;
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void *data;
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} post_run;
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Eina_Bool gl_engine : 1;
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};
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struct _Evas_Filter_Command
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{
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EINA_INLIST;
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int id;
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Evas_Filter_Mode mode;
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Evas_Filter_Context *ctx;
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Evas_Filter_Buffer *input;
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Evas_Filter_Buffer *mask;
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Evas_Filter_Buffer *output;
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union
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{
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struct
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{
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int dx, dy;
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Evas_Filter_Blur_Type type;
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} blur;
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struct
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{
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DATA8 *data; // Pointer to 256 char array
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Evas_Filter_Channel channel;
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} curve;
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struct
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{
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// mask contains the map data
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Evas_Filter_Displacement_Flags flags;
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int intensity; // Max displacement in pixels
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} displacement;
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struct
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{
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float xyangle; // in degrees: 0-360 (modulo)
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float zangle; // degrees: 0-90 (defaults to 0)
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float specular_factor; // range TBD: 0-...
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float elevation;
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DATA32 dark;
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DATA32 color;
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DATA32 white;
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Eina_Bool compensate : 1; // Compensate for darkening
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//Eina_Bool specular : 1; // Use specular light as well (needs specular_factor > 0)
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} bump;
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struct
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{
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Evas_Filter_Transform_Flags flags;
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} transform;
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};
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struct {
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int render_op;
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int R, G, B, A;
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int ox, oy;
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union {
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struct {
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int x, y, w, h;
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};
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struct {
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int l, r, t, b;
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};
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} clip;
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Evas_Filter_Fill_Mode fillmode;
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Eina_Bool clip_use : 1;
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Eina_Bool clip_mode_lrtb : 1;
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} draw;
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};
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struct _Evas_Filter_Buffer
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{
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EINA_REFCOUNT;
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int id;
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Evas_Filter_Context *ctx;
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Evas_Object *source;
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void *backing;
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int w, h;
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Eina_Bool alpha_only : 1; // 1 channel (A) instead of 4 (RGBA)
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Eina_Bool allocated : 1; // allocated on demand, belongs to this context
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Eina_Bool transient : 1; // temporary buffer (automatic allocation)
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Eina_Bool locked : 1; // internal flag
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};
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enum _Evas_Filter_Interpolation_Mode
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{
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EVAS_FILTER_INTERPOLATION_MODE_NONE,
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EVAS_FILTER_INTERPOLATION_MODE_LINEAR,
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EVAS_FILTER_INTERPOLATION_MODE_CUBIC
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};
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void evas_filter_context_clear(Evas_Filter_Context *ctx);
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void evas_filter_context_proxy_bind(Evas_Filter_Context *ctx, Evas_Object *eo_proxy, Evas_Object *eo_source, int bufid);
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/* FIXME: CPU filters entry points. Move these to the Evas Engine itself. */
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Evas_Filter_Apply_Func evas_filter_blend_cpu_func_get(Evas_Filter_Command *cmd);
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Evas_Filter_Apply_Func evas_filter_blur_cpu_func_get(Evas_Filter_Command *cmd);
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Evas_Filter_Apply_Func evas_filter_bump_map_cpu_func_get(Evas_Filter_Command *cmd);
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Evas_Filter_Apply_Func evas_filter_curve_cpu_func_get(Evas_Filter_Command *cmd);
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Evas_Filter_Apply_Func evas_filter_displace_cpu_func_get(Evas_Filter_Command *cmd);
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Evas_Filter_Apply_Func evas_filter_fill_cpu_func_get(Evas_Filter_Command *cmd);
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Evas_Filter_Apply_Func evas_filter_mask_cpu_func_get(Evas_Filter_Command *cmd);
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Evas_Filter_Apply_Func evas_filter_transform_cpu_func_get(Evas_Filter_Command *cmd);
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/* Utility functions */
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void _clip_to_target(int *sx, int *sy, int sw, int sh, int ox, int oy, int dw, int dh, int *dx, int *dy, int *rows, int *cols);
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Eina_Bool evas_filter_buffer_alloc(Evas_Filter_Buffer *fb, int w, int h);
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Evas_Filter_Buffer *_filter_buffer_get(Evas_Filter_Context *ctx, int bufid);
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Evas_Filter_Buffer *evas_filter_temporary_buffer_get(Evas_Filter_Context *ctx, int w, int h, Eina_Bool alpha_only);
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Evas_Filter_Buffer *evas_filter_buffer_scaled_get(Evas_Filter_Context *ctx, Evas_Filter_Buffer *src, int w, int h);
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Eina_Bool evas_filter_interpolate(DATA8* output /* 256 values */, DATA8* points /* pairs x + y */, int point_count, Evas_Filter_Interpolation_Mode mode);
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#endif // EVAS_FILTER_PRIVATE_H
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