81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
#include "evas_gl_private.h"
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void
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evas_gl_common_line_draw(Evas_Engine_GL_Context *gc, int x1, int y1, int x2, int y2)
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{
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RGBA_Draw_Context *dc;
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int r, g, b, a;
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int c, cx, cy, cw, ch;
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static int offset_hack = -1;
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const int OFFSET_HACK_OFF = 0;
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const int OFFSET_HACK_DEFAULT = 1;
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const int OFFSET_HACK_ARM = 2;
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dc = gc->dc;
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if (dc->mul.use)
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{
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a = (dc->mul.col >> 24) & 0xff;
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r = (dc->mul.col >> 16) & 0xff;
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g = (dc->mul.col >> 8 ) & 0xff;
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b = (dc->mul.col ) & 0xff;
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}
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else
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{
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a = (dc->col.col >> 24) & 0xff;
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r = (dc->col.col >> 16) & 0xff;
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g = (dc->col.col >> 8 ) & 0xff;
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b = (dc->col.col ) & 0xff;
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}
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c = gc->dc->clip.use;
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cx = gc->dc->clip.x; cy = gc->dc->clip.y;
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cw = gc->dc->clip.w; ch = gc->dc->clip.h;
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//I have no idea but shift lines/clips since the gl line origin position and
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//sissor area is slightly different by the gl driver.
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if (offset_hack == -1)
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{
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if (!getenv("EVAS_GL_LINE_OFFSET_HACK_DISABLE"))
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{
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const char *vendor_name;
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vendor_name = (char *) glGetString(GL_VENDOR);
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if (vendor_name && !strcmp(vendor_name, "ARM"))
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offset_hack = OFFSET_HACK_ARM;
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else
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offset_hack = OFFSET_HACK_DEFAULT;
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}
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else offset_hack = OFFSET_HACK_OFF;
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}
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if (offset_hack == OFFSET_HACK_DEFAULT)
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{
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if ((gc->rot == 0) || (gc->rot == 90))
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{
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x1++;
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x2++;
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}
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if ((gc->rot == 90) || (gc->rot == 180))
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{
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y1++;
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y2++;
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}
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}
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else if (offset_hack == OFFSET_HACK_ARM)
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{
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if ((gc->rot == 90) || (gc->rot == 180))
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{
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cx--;
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cw--;
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}
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if ((gc->rot == 180) || (gc->rot == 270))
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{
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cy--;
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ch--;
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}
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}
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evas_gl_common_context_line_push(gc, x1, y1, x2, y2,
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c, cx, cy, cw, ch,
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r, g, b, a);
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}
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