diff options
Diffstat (limited to 'drivers/gles3/shaders/canvas.glsl')
| -rw-r--r-- | drivers/gles3/shaders/canvas.glsl | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/gles3/shaders/canvas.glsl b/drivers/gles3/shaders/canvas.glsl index e83f53d648..7255b0425c 100644 --- a/drivers/gles3/shaders/canvas.glsl +++ b/drivers/gles3/shaders/canvas.glsl @@ -380,14 +380,16 @@ uniform bool np_draw_center; // left top right bottom in pixel coordinates uniform vec4 np_margins; -float map_ninepatch_axis(float pixel, float draw_size, float tex_pixel_size, float margin_begin, float margin_end, int np_repeat, inout int draw_center) { +float map_ninepatch_axis(float pixel, float draw_size, float tex_pixel_size, float margin_begin, float margin_end, float s_ratio, int np_repeat, inout int draw_center) { float tex_size = 1.0 / tex_pixel_size; - if (pixel < margin_begin) { - return pixel * tex_pixel_size; - } else if (pixel >= draw_size - margin_end) { - return (tex_size - (draw_size - pixel)) * tex_pixel_size; + float screen_margin_begin = margin_begin / s_ratio; + float screen_margin_end = margin_end / s_ratio; + if (pixel < screen_margin_begin) { + return pixel * s_ratio * tex_pixel_size; + } else if (pixel >= draw_size - screen_margin_end) { + return (tex_size - (draw_size - pixel) * s_ratio) * tex_pixel_size; } else { if (!np_draw_center) { draw_center--; @@ -395,22 +397,22 @@ float map_ninepatch_axis(float pixel, float draw_size, float tex_pixel_size, flo if (np_repeat == 0) { //stretch //convert to ratio - float ratio = (pixel - margin_begin) / (draw_size - margin_begin - margin_end); + float ratio = (pixel - screen_margin_begin) / (draw_size - screen_margin_begin - screen_margin_end); //scale to source texture return (margin_begin + ratio * (tex_size - margin_begin - margin_end)) * tex_pixel_size; } else if (np_repeat == 1) { //tile //convert to ratio - float ofs = mod((pixel - margin_begin), tex_size - margin_begin - margin_end); + float ofs = mod((pixel - screen_margin_begin), tex_size - margin_begin - margin_end); //scale to source texture return (margin_begin + ofs) * tex_pixel_size; } else if (np_repeat == 2) { //tile fit //convert to ratio - float src_area = draw_size - margin_begin - margin_end; + float src_area = draw_size - screen_margin_begin - screen_margin_end; float dst_area = tex_size - margin_begin - margin_end; float scale = max(1.0, floor(src_area / max(dst_area, 0.0000001) + 0.5)); //convert to ratio - float ratio = (pixel - margin_begin) / src_area; + float ratio = (pixel - screen_margin_begin) / src_area; ratio = mod(ratio * scale, 1.0); return (margin_begin + ratio * dst_area) * tex_pixel_size; } @@ -432,9 +434,11 @@ void main() { #ifdef USE_NINEPATCH int draw_center = 2; + float s_ratio = max((1.0 / color_texpixel_size.x) / abs(dst_rect.z), (1.0 / color_texpixel_size.y) / abs(dst_rect.w)); + s_ratio = max(1.0, s_ratio); uv = vec2( - map_ninepatch_axis(pixel_size_interp.x, abs(dst_rect.z), color_texpixel_size.x, np_margins.x, np_margins.z, np_repeat_h, draw_center), - map_ninepatch_axis(pixel_size_interp.y, abs(dst_rect.w), color_texpixel_size.y, np_margins.y, np_margins.w, np_repeat_v, draw_center)); + map_ninepatch_axis(pixel_size_interp.x, abs(dst_rect.z), color_texpixel_size.x, np_margins.x, np_margins.z, s_ratio, np_repeat_h, draw_center), + map_ninepatch_axis(pixel_size_interp.y, abs(dst_rect.w), color_texpixel_size.y, np_margins.y, np_margins.w, s_ratio, np_repeat_v, draw_center)); if (draw_center == 0) { color.a = 0.0; |