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-rw-r--r--include/gdisp/lld/emulation.c558
1 files changed, 0 insertions, 558 deletions
diff --git a/include/gdisp/lld/emulation.c b/include/gdisp/lld/emulation.c
deleted file mode 100644
index cb0c9c4b..00000000
--- a/include/gdisp/lld/emulation.c
+++ /dev/null
@@ -1,558 +0,0 @@
-/*
- * This file is subject to the terms of the GFX License. If a copy of
- * the license was not distributed with this file, you can obtain one at:
- *
- * http://ugfx.org/license.html
- */
-
-/**
- * @file include/gdisp/lld/emulation.c
- * @brief GDISP emulation routines for stuff the driver dosen't support
- *
- * @addtogroup GDISP
- *
- * @details Even though this is a software emulation of a low level driver
- * most validation doesn't need to happen here as eventually
- * we call a real low level driver routine and if validation is
- * required - it will do it.
- *
- * @{
- */
-#ifndef GDISP_EMULATION_C
-#define GDISP_EMULATION_C
-
-#if GFX_USE_GDISP
-
-/* Include the low level driver information */
-#include "gdisp/lld/gdisp_lld.h"
-
-/* Declare the GDISP structure */
-GDISPDriver GDISP;
-
-#if !GDISP_HARDWARE_CLEARS
- void gdisp_lld_clear(color_t color) {
- gdisp_lld_fill_area(0, 0, GDISP.Width, GDISP.Height, color);
- }
-#endif
-
-#if !GDISP_HARDWARE_LINES
- void gdisp_lld_draw_line(coord_t x0, coord_t y0, coord_t x1, coord_t y1, color_t color) {
- int16_t dy, dx;
- int16_t addx, addy;
- int16_t P, diff, i;
-
- #if GDISP_HARDWARE_FILLS || GDISP_HARDWARE_SCROLL
- // speed improvement if vertical or horizontal
- if (x0 == x1) {
- if (y1 > y0)
- gdisp_lld_fill_area(x0, y0, 1, y1-y0+1, color);
- else
- gdisp_lld_fill_area(x0, y1, 1, y0-y1+1, color);
- return;
- }
- if (y0 == y1) {
- if (x1 > x0)
- gdisp_lld_fill_area(x0, y0, x1-x0+1, 1, color);
- else
- gdisp_lld_fill_area(x1, y0, x0-x1+1, 1, color);
- return;
- }
- #endif
-
- if (x1 >= x0) {
- dx = x1 - x0;
- addx = 1;
- } else {
- dx = x0 - x1;
- addx = -1;
- }
- if (y1 >= y0) {
- dy = y1 - y0;
- addy = 1;
- } else {
- dy = y0 - y1;
- addy = -1;
- }
-
- if (dx >= dy) {
- dy *= 2;
- P = dy - dx;
- diff = P - dx;
-
- for(i=0; i<=dx; ++i) {
- gdisp_lld_draw_pixel(x0, y0, color);
- if (P < 0) {
- P += dy;
- x0 += addx;
- } else {
- P += diff;
- x0 += addx;
- y0 += addy;
- }
- }
- } else {
- dx *= 2;
- P = dx - dy;
- diff = P - dy;
-
- for(i=0; i<=dy; ++i) {
- gdisp_lld_draw_pixel(x0, y0, color);
- if (P < 0) {
- P += dx;
- y0 += addy;
- } else {
- P += diff;
- x0 += addx;
- y0 += addy;
- }
- }
- }
- }
-#endif
-
-#if !GDISP_HARDWARE_FILLS
- void gdisp_lld_fill_area(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
- #if GDISP_HARDWARE_SCROLL
- gdisp_lld_vertical_scroll(x, y, cx, cy, cy, color);
- #elif GDISP_HARDWARE_LINES
- coord_t x1, y1;
-
- x1 = x + cx - 1;
- y1 = y + cy;
- for(; y < y1; y++)
- gdisp_lld_draw_line(x, y, x1, y, color);
- #else
- coord_t x0, x1, y1;
-
- x0 = x;
- x1 = x + cx;
- y1 = y + cy;
- for(; y < y1; y++)
- for(x = x0; x < x1; x++)
- gdisp_lld_draw_pixel(x, y, color);
- #endif
- }
-#endif
-
-#if !GDISP_HARDWARE_BITFILLS
- void gdisp_lld_blit_area_ex(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t srcx, coord_t srcy, coord_t srccx, const pixel_t *buffer) {
- coord_t x0, x1, y1;
-
- x0 = x;
- x1 = x + cx;
- y1 = y + cy;
- buffer += srcy*srccx+srcx;
- srccx -= cx;
- for(; y < y1; y++, buffer += srccx)
- for(x=x0; x < x1; x++)
- gdisp_lld_draw_pixel(x, y, *buffer++);
- }
-#endif
-
-#if GDISP_NEED_CLIP && !GDISP_HARDWARE_CLIP
- void gdisp_lld_set_clip(coord_t x, coord_t y, coord_t cx, coord_t cy) {
- #if GDISP_NEED_VALIDATION
- if (x >= GDISP.Width || y >= GDISP.Height || cx < 0 || cy < 0)
- return;
- if (x < 0) x = 0;
- if (y < 0) y = 0;
- if (x+cx > GDISP.Width) cx = GDISP.Width - x;
- if (y+cy > GDISP.Height) cy = GDISP.Height - y;
- #endif
- GDISP.clipx0 = x;
- GDISP.clipy0 = y;
- GDISP.clipx1 = x+cx;
- GDISP.clipy1 = y+cy;
- }
-#endif
-
-#if GDISP_NEED_CIRCLE && !GDISP_HARDWARE_CIRCLES
- void gdisp_lld_draw_circle(coord_t x, coord_t y, coord_t radius, color_t color) {
- coord_t a, b, P;
-
- a = 0;
- b = radius;
- P = 1 - radius;
-
- do {
- gdisp_lld_draw_pixel(x+a, y+b, color);
- gdisp_lld_draw_pixel(x+b, y+a, color);
- gdisp_lld_draw_pixel(x-a, y+b, color);
- gdisp_lld_draw_pixel(x-b, y+a, color);
- gdisp_lld_draw_pixel(x+b, y-a, color);
- gdisp_lld_draw_pixel(x+a, y-b, color);
- gdisp_lld_draw_pixel(x-a, y-b, color);
- gdisp_lld_draw_pixel(x-b, y-a, color);
- if (P < 0)
- P += 3 + 2*a++;
- else
- P += 5 + 2*(a++ - b--);
- } while(a <= b);
- }
-#endif
-
-#if GDISP_NEED_CIRCLE && !GDISP_HARDWARE_CIRCLEFILLS
- void gdisp_lld_fill_circle(coord_t x, coord_t y, coord_t radius, color_t color) {
- coord_t a, b, P;
-
- a = 0;
- b = radius;
- P = 1 - radius;
-
- do {
- gdisp_lld_draw_line(x-a, y+b, x+a, y+b, color);
- gdisp_lld_draw_line(x-a, y-b, x+a, y-b, color);
- gdisp_lld_draw_line(x-b, y+a, x+b, y+a, color);
- gdisp_lld_draw_line(x-b, y-a, x+b, y-a, color);
- if (P < 0)
- P += 3 + 2*a++;
- else
- P += 5 + 2*(a++ - b--);
- } while(a <= b);
- }
-#endif
-
-#if GDISP_NEED_ELLIPSE && !GDISP_HARDWARE_ELLIPSES
- void gdisp_lld_draw_ellipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
- int dx = 0, dy = b; /* im I. Quadranten von links oben nach rechts unten */
- long a2 = a*a, b2 = b*b;
- long err = b2-(2*b-1)*a2, e2; /* Fehler im 1. Schritt */
-
- do {
- gdisp_lld_draw_pixel(x+dx, y+dy, color); /* I. Quadrant */
- gdisp_lld_draw_pixel(x-dx, y+dy, color); /* II. Quadrant */
- gdisp_lld_draw_pixel(x-dx, y-dy, color); /* III. Quadrant */
- gdisp_lld_draw_pixel(x+dx, y-dy, color); /* IV. Quadrant */
-
- e2 = 2*err;
- if(e2 < (2*dx+1)*b2) {
- dx++;
- err += (2*dx+1)*b2;
- }
- if(e2 > -(2*dy-1)*a2) {
- dy--;
- err -= (2*dy-1)*a2;
- }
- } while(dy >= 0);
-
- while(dx++ < a) { /* fehlerhafter Abbruch bei flachen Ellipsen (b=1) */
- gdisp_lld_draw_pixel(x+dx, y, color); /* -> Spitze der Ellipse vollenden */
- gdisp_lld_draw_pixel(x-dx, y, color);
- }
- }
-#endif
-
-#if GDISP_NEED_ELLIPSE && !GDISP_HARDWARE_ELLIPSEFILLS
- void gdisp_lld_fill_ellipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
- int dx = 0, dy = b; /* im I. Quadranten von links oben nach rechts unten */
- long a2 = a*a, b2 = b*b;
- long err = b2-(2*b-1)*a2, e2; /* Fehler im 1. Schritt */
-
- do {
- gdisp_lld_draw_line(x-dx,y+dy,x+dx,y+dy, color);
- gdisp_lld_draw_line(x-dx,y-dy,x+dx,y-dy, color);
-
- e2 = 2*err;
- if(e2 < (2*dx+1)*b2) {
- dx++;
- err += (2*dx+1)*b2;
- }
- if(e2 > -(2*dy-1)*a2) {
- dy--;
- err -= (2*dy-1)*a2;
- }
- } while(dy >= 0);
-
- while(dx++ < a) { /* fehlerhafter Abbruch bei flachen Ellipsen (b=1) */
- gdisp_lld_draw_pixel(x+dx, y, color); /* -> Spitze der Ellipse vollenden */
- gdisp_lld_draw_pixel(x-dx, y, color);
- }
- }
-#endif
-
-#if GDISP_NEED_ARC && !GDISP_HARDWARE_ARCS
-
- #include <math.h>
-
- /*
- * @brief Internal helper function for gdispDrawArc()
- *
- * @note DO NOT USE DIRECTLY!
- *
- * @param[in] x, y The middle point of the arc
- * @param[in] start The start angle of the arc
- * @param[in] end The end angle of the arc
- * @param[in] radius The radius of the arc
- * @param[in] color The color in which the arc will be drawn
- *
- * @notapi
- */
- static void _draw_arc(coord_t x, coord_t y, uint16_t start, uint16_t end, uint16_t radius, color_t color) {
- if (/*start >= 0 && */start <= 180) {
- float x_maxI = x + radius*cos(start*M_PI/180);
- float x_minI;
-
- if (end > 180)
- x_minI = x - radius;
- else
- x_minI = x + radius*cos(end*M_PI/180);
-
- int a = 0;
- int b = radius;
- int P = 1 - radius;
-
- do {
- if(x-a <= x_maxI && x-a >= x_minI)
- gdisp_lld_draw_pixel(x-a, y-b, color);
- if(x+a <= x_maxI && x+a >= x_minI)
- gdisp_lld_draw_pixel(x+a, y-b, color);
- if(x-b <= x_maxI && x-b >= x_minI)
- gdisp_lld_draw_pixel(x-b, y-a, color);
- if(x+b <= x_maxI && x+b >= x_minI)
- gdisp_lld_draw_pixel(x+b, y-a, color);
-
- if (P < 0) {
- P = P + 3 + 2*a;
- a = a + 1;
- } else {
- P = P + 5 + 2*(a - b);
- a = a + 1;
- b = b - 1;
- }
- } while(a <= b);
- }
-
- if (end > 180 && end <= 360) {
- float x_maxII = x+radius*cos(end*M_PI/180);
- float x_minII;
-
- if(start <= 180)
- x_minII = x - radius;
- else
- x_minII = x+radius*cos(start*M_PI/180);
-
- int a = 0;
- int b = radius;
- int P = 1 - radius;
-
- do {
- if(x-a <= x_maxII && x-a >= x_minII)
- gdisp_lld_draw_pixel(x-a, y+b, color);
- if(x+a <= x_maxII && x+a >= x_minII)
- gdisp_lld_draw_pixel(x+a, y+b, color);
- if(x-b <= x_maxII && x-b >= x_minII)
- gdisp_lld_draw_pixel(x-b, y+a, color);
- if(x+b <= x_maxII && x+b >= x_minII)
- gdisp_lld_draw_pixel(x+b, y+a, color);
-
- if (P < 0) {
- P = P + 3 + 2*a;
- a = a + 1;
- } else {
- P = P + 5 + 2*(a - b);
- a = a + 1;
- b = b - 1;
- }
- } while (a <= b);
- }
- }
-
- void gdisp_lld_draw_arc(coord_t x, coord_t y, coord_t radius, coord_t startangle, coord_t endangle, color_t color) {
- if(endangle < startangle) {
- _draw_arc(x, y, startangle, 360, radius, color);
- _draw_arc(x, y, 0, endangle, radius, color);
- } else {
- _draw_arc(x, y, startangle, endangle, radius, color);
- }
- }
-#endif
-
-#if GDISP_NEED_ARC && !GDISP_HARDWARE_ARCFILLS
- /*
- * @brief Internal helper function for gdispDrawArc()
- *
- * @note DO NOT USE DIRECTLY!
- *
- * @param[in] x, y The middle point of the arc
- * @param[in] start The start angle of the arc
- * @param[in] end The end angle of the arc
- * @param[in] radius The radius of the arc
- * @param[in] color The color in which the arc will be drawn
- *
- * @notapi
- */
- static void _fill_arc(coord_t x, coord_t y, uint16_t start, uint16_t end, uint16_t radius, color_t color) {
- if (/*start >= 0 && */start <= 180) {
- float x_maxI = x + radius*cos(start*M_PI/180);
- float x_minI;
-
- if (end > 180)
- x_minI = x - radius;
- else
- x_minI = x + radius*cos(end*M_PI/180);
-
- int a = 0;
- int b = radius;
- int P = 1 - radius;
-
- do {
- if(x-a <= x_maxI && x-a >= x_minI)
- gdisp_lld_draw_line(x, y, x-a, y-b, color);
- if(x+a <= x_maxI && x+a >= x_minI)
- gdisp_lld_draw_line(x, y, x+a, y-b, color);
- if(x-b <= x_maxI && x-b >= x_minI)
- gdisp_lld_draw_line(x, y, x-b, y-a, color);
- if(x+b <= x_maxI && x+b >= x_minI)
- gdisp_lld_draw_line(x, y, x+b, y-a, color);
-
- if (P < 0) {
- P = P + 3 + 2*a;
- a = a + 1;
- } else {
- P = P + 5 + 2*(a - b);
- a = a + 1;
- b = b - 1;
- }
- } while(a <= b);
- }
-
- if (end > 180 && end <= 360) {
- float x_maxII = x+radius*cos(end*M_PI/180);
- float x_minII;
-
- if(start <= 180)
- x_minII = x - radius;
- else
- x_minII = x+radius*cos(start*M_PI/180);
-
- int a = 0;
- int b = radius;
- int P = 1 - radius;
-
- do {
- if(x-a <= x_maxII && x-a >= x_minII)
- gdisp_lld_draw_line(x, y, x-a, y+b, color);
- if(x+a <= x_maxII && x+a >= x_minII)
- gdisp_lld_draw_line(x, y, x+a, y+b, color);
- if(x-b <= x_maxII && x-b >= x_minII)
- gdisp_lld_draw_line(x, y, x-b, y+a, color);
- if(x+b <= x_maxII && x+b >= x_minII)
- gdisp_lld_draw_line(x, y, x+b, y+a, color);
-
- if (P < 0) {
- P = P + 3 + 2*a;
- a = a + 1;
- } else {
- P = P + 5 + 2*(a - b);
- a = a + 1;
- b = b - 1;
- }
- } while (a <= b);
- }
- }
-
- void gdisp_lld_fill_arc(coord_t x, coord_t y, coord_t radius, coord_t startangle, coord_t endangle, color_t color) {
- if(endangle < startangle) {
- _fill_arc(x, y, startangle, 360, radius, color);
- _fill_arc(x, y, 0, endangle, radius, color);
- } else {
- _fill_arc(x, y, startangle, endangle, radius, color);
- }
- }
-#endif
-
-#if GDISP_NEED_CONTROL && !GDISP_HARDWARE_CONTROL
- void gdisp_lld_control(unsigned what, void *value) {
- (void)what;
- (void)value;
- /* Ignore everything */
- }
-#endif
-
-#if GDISP_NEED_QUERY && !GDISP_HARDWARE_QUERY
-void *gdisp_lld_query(unsigned what) {
- (void) what;
- return (void *)-1;
-}
-#endif
-
-#if GDISP_NEED_MSGAPI
- void gdisp_lld_msg_dispatch(gdisp_lld_msg_t *msg) {
- switch(msg->action) {
- case GDISP_LLD_MSG_NOP:
- break;
- case GDISP_LLD_MSG_INIT:
- gdisp_lld_init();
- break;
- case GDISP_LLD_MSG_CLEAR:
- gdisp_lld_clear(msg->clear.color);
- break;
- case GDISP_LLD_MSG_DRAWPIXEL:
- gdisp_lld_draw_pixel(msg->drawpixel.x, msg->drawpixel.y, msg->drawpixel.color);
- break;
- case GDISP_LLD_MSG_FILLAREA:
- gdisp_lld_fill_area(msg->fillarea.x, msg->fillarea.y, msg->fillarea.cx, msg->fillarea.cy, msg->fillarea.color);
- break;
- case GDISP_LLD_MSG_BLITAREA:
- gdisp_lld_blit_area_ex(msg->blitarea.x, msg->blitarea.y, msg->blitarea.cx, msg->blitarea.cy, msg->blitarea.srcx, msg->blitarea.srcy, msg->blitarea.srccx, msg->blitarea.buffer);
- break;
- case GDISP_LLD_MSG_DRAWLINE:
- gdisp_lld_draw_line(msg->drawline.x0, msg->drawline.y0, msg->drawline.x1, msg->drawline.y1, msg->drawline.color);
- break;
- #if GDISP_NEED_CLIP
- case GDISP_LLD_MSG_SETCLIP:
- gdisp_lld_set_clip(msg->setclip.x, msg->setclip.y, msg->setclip.cx, msg->setclip.cy);
- break;
- #endif
- #if GDISP_NEED_CIRCLE
- case GDISP_LLD_MSG_DRAWCIRCLE:
- gdisp_lld_draw_circle(msg->drawcircle.x, msg->drawcircle.y, msg->drawcircle.radius, msg->drawcircle.color);
- break;
- case GDISP_LLD_MSG_FILLCIRCLE:
- gdisp_lld_fill_circle(msg->fillcircle.x, msg->fillcircle.y, msg->fillcircle.radius, msg->fillcircle.color);
- break;
- #endif
- #if GDISP_NEED_ELLIPSE
- case GDISP_LLD_MSG_DRAWELLIPSE:
- gdisp_lld_draw_ellipse(msg->drawellipse.x, msg->drawellipse.y, msg->drawellipse.a, msg->drawellipse.b, msg->drawellipse.color);
- break;
- case GDISP_LLD_MSG_FILLELLIPSE:
- gdisp_lld_fill_ellipse(msg->fillellipse.x, msg->fillellipse.y, msg->fillellipse.a, msg->fillellipse.b, msg->fillellipse.color);
- break;
- #endif
- #if GDISP_NEED_ARC
- case GDISP_LLD_MSG_DRAWARC:
- gdisp_lld_draw_circle(msg->drawarc.x, msg->drawarc.y, msg->drawarc.radius, msg->drawarc.startangle, msg->drawarc.endangle, msg->drawarc.color);
- break;
- case GDISP_LLD_MSG_FILLARC:
- gdisp_lld_fill_circle(msg->fillarc.x, msg->fillarc.y, msg->fillarc.radius, msg->fillarc.startangle, msg->fillarc.endangle, msg->fillarc.color);
- break;
- #endif
- #if GDISP_NEED_PIXELREAD
- case GDISP_LLD_MSG_GETPIXELCOLOR:
- msg->getpixelcolor.result = gdisp_lld_get_pixel_color(msg->getpixelcolor.x, msg->getpixelcolor.y);
- break;
- #endif
- #if GDISP_NEED_SCROLL
- case GDISP_LLD_MSG_VERTICALSCROLL:
- gdisp_lld_vertical_scroll(msg->verticalscroll.x, msg->verticalscroll.y, msg->verticalscroll.cx, msg->verticalscroll.cy, msg->verticalscroll.lines, msg->verticalscroll.bgcolor);
- break;
- #endif
- #if GDISP_NEED_CONTROL
- case GDISP_LLD_MSG_CONTROL:
- gdisp_lld_control(msg->control.what, msg->control.value);
- break;
- #endif
- #if GDISP_NEED_QUERY
- case GDISP_LLD_MSG_QUERY:
- msg->query.result = gdisp_lld_query(msg->query.what);
- break;
- #endif
- }
- }
-#endif
-
-#endif /* GFX_USE_GDISP */
-#endif /* GDISP_EMULATION_C */
-/** @} */
-
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