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More efficient calculation of render_count

This commit is contained in:
Sam Lantinga 2022-01-08 12:37:57 -08:00
parent 5346c93b62
commit 4ef2529bf9
1 changed files with 4 additions and 2 deletions
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6
src/render/SDL_render.c
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@ -2832,7 +2832,7 @@ static int plotLineLow(SDL_Renderer *renderer, float x0, float y0, float x1, flo
D = (2 * dy) - dx; D = (2 * dy) - dx;
y = y0; y = y0;
for (render_count = 0, x = x0; x <= x1; ++x, ++render_count) { for (x = x0; x <= x1; ++x) {
tmp->x = x; tmp->x = x;
tmp->y = y; tmp->y = y;
tmp++; tmp++;
@ -2843,6 +2843,7 @@ static int plotLineLow(SDL_Renderer *renderer, float x0, float y0, float x1, flo
D += 2*dy; D += 2*dy;
} }
} }
render_count = (tmp - points);
if (!draw_last) { if (!draw_last) {
--render_count; --render_count;
@ -2889,7 +2890,7 @@ static int plotLineHigh(SDL_Renderer *renderer, float x0, float y0, float x1, fl
D = (2 * dx) - dy; D = (2 * dx) - dy;
x = x0; x = x0;
for (render_count = 0, y = y0; y <= y1; ++y, ++render_count) { for (y = y0; y <= y1; ++y) {
tmp->x = x; tmp->x = x;
tmp->y = y; tmp->y = y;
tmp++; tmp++;
@ -2900,6 +2901,7 @@ static int plotLineHigh(SDL_Renderer *renderer, float x0, float y0, float x1, fl
D += 2*dx; D += 2*dx;
} }
} }
render_count = (tmp - points);
if (!draw_last) { if (!draw_last) {
--render_count; --render_count;