Daily update on 20250721-223448 by Nitload Youmu. Additional Message : Rename StgSHarp.C to StgSharp.Native. Add SDL to repo.
Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>
This commit is contained in:
Nitload
@@ -0,0 +1,986 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#ifdef SDL_VIDEO_RENDER_SW
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#include "SDL_draw.h"
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#include "SDL_blendline.h"
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#include "SDL_blendpoint.h"
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static void SDL_BlendLine_RGB2(SDL_Surface *dst, int x1, int y1, int x2, int y2,
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SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
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bool draw_end)
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{
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const SDL_PixelFormatDetails *fmt = dst->fmt;
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unsigned r, g, b, a, inva;
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if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
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r = DRAW_MUL(_r, _a);
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g = DRAW_MUL(_g, _a);
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b = DRAW_MUL(_b, _a);
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a = _a;
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} else {
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r = _r;
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g = _g;
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b = _b;
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a = _a;
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}
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inva = (a ^ 0xff);
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if (y1 == y2) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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HLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB, draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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HLINE(Uint16, DRAW_SETPIXEL_MUL_RGB, draw_end);
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break;
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default:
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HLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
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break;
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}
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} else if (x1 == x2) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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VLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB, draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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VLINE(Uint16, DRAW_SETPIXEL_MUL_RGB, draw_end);
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break;
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default:
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VLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
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break;
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}
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} else if (ABS(x1 - x2) == ABS(y1 - y2)) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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DLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB, draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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DLINE(Uint16, DRAW_SETPIXEL_MUL_RGB, draw_end);
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break;
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default:
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DLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
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break;
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}
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} else {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY2_BLEND_RGB, DRAW_SETPIXELXY2_BLEND_RGB,
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draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY2_BLEND_CLAMPED_RGB, DRAW_SETPIXELXY2_BLEND_CLAMPED_RGB,
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draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY2_ADD_RGB, DRAW_SETPIXELXY2_ADD_RGB,
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draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY2_MOD_RGB, DRAW_SETPIXELXY2_MOD_RGB,
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draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY2_MUL_RGB, DRAW_SETPIXELXY2_MUL_RGB,
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draw_end);
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break;
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default:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY2_RGB, DRAW_SETPIXELXY2_BLEND_RGB,
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draw_end);
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break;
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}
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}
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}
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static void SDL_BlendLine_RGB555(SDL_Surface *dst, int x1, int y1, int x2, int y2,
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SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
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bool draw_end)
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{
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unsigned r, g, b, a, inva;
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if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
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r = DRAW_MUL(_r, _a);
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g = DRAW_MUL(_g, _a);
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b = DRAW_MUL(_b, _a);
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a = _a;
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} else {
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r = _r;
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g = _g;
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b = _b;
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a = _a;
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}
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inva = (a ^ 0xff);
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if (y1 == y2) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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HLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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HLINE(Uint16, DRAW_SETPIXEL_MUL_RGB555, draw_end);
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break;
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default:
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HLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
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break;
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}
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} else if (x1 == x2) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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VLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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VLINE(Uint16, DRAW_SETPIXEL_MUL_RGB555, draw_end);
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break;
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default:
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VLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
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break;
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}
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} else if (ABS(x1 - x2) == ABS(y1 - y2)) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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DLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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DLINE(Uint16, DRAW_SETPIXEL_MUL_RGB555, draw_end);
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break;
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default:
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DLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
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break;
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}
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} else {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY_BLEND_RGB555, DRAW_SETPIXELXY_BLEND_RGB555,
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draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY_BLEND_CLAMPED_RGB555, DRAW_SETPIXELXY_BLEND_CLAMPED_RGB555,
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draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY_ADD_RGB555, DRAW_SETPIXELXY_ADD_RGB555,
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draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY_MOD_RGB555, DRAW_SETPIXELXY_MOD_RGB555,
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draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY_MUL_RGB555, DRAW_SETPIXELXY_MUL_RGB555,
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draw_end);
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break;
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default:
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AALINE(x1, y1, x2, y2,
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DRAW_SETPIXELXY_RGB555, DRAW_SETPIXELXY_BLEND_RGB555,
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draw_end);
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break;
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}
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}
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}
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static void SDL_BlendLine_RGB565(SDL_Surface *dst, int x1, int y1, int x2, int y2,
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SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
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bool draw_end)
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{
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unsigned r, g, b, a, inva;
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if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
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r = DRAW_MUL(_r, _a);
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g = DRAW_MUL(_g, _a);
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b = DRAW_MUL(_b, _a);
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a = _a;
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} else {
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r = _r;
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g = _g;
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b = _b;
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a = _a;
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}
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inva = (a ^ 0xff);
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if (y1 == y2) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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HLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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HLINE(Uint16, DRAW_SETPIXEL_MUL_RGB565, draw_end);
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break;
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default:
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HLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
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break;
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}
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} else if (x1 == x2) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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VLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_ADD:
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_MOD:
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VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_MUL:
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VLINE(Uint16, DRAW_SETPIXEL_MUL_RGB565, draw_end);
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break;
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default:
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VLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
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break;
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}
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} else if (ABS(x1 - x2) == ABS(y1 - y2)) {
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switch (blendMode) {
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case SDL_BLENDMODE_BLEND:
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DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
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break;
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case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
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||||
DLINE(Uint16, DRAW_SETPIXEL_BLEND_CLAMPED_RGB565, draw_end);
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break;
|
||||
case SDL_BLENDMODE_ADD:
|
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case SDL_BLENDMODE_ADD_PREMULTIPLIED:
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DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
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||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
DLINE(Uint16, DRAW_SETPIXEL_MUL_RGB565, draw_end);
|
||||
break;
|
||||
default:
|
||||
DLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_BLEND_RGB565, DRAW_SETPIXELXY_BLEND_RGB565,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_BLEND_CLAMPED_RGB565, DRAW_SETPIXELXY_BLEND_CLAMPED_RGB565,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_ADD_RGB565, DRAW_SETPIXELXY_ADD_RGB565,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_MOD_RGB565, DRAW_SETPIXELXY_MOD_RGB565,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_MUL_RGB565, DRAW_SETPIXELXY_MUL_RGB565,
|
||||
draw_end);
|
||||
break;
|
||||
default:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_RGB565, DRAW_SETPIXELXY_BLEND_RGB565,
|
||||
draw_end);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void SDL_BlendLine_RGB4(SDL_Surface *dst, int x1, int y1, int x2, int y2,
|
||||
SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
|
||||
bool draw_end)
|
||||
{
|
||||
const SDL_PixelFormatDetails *fmt = dst->fmt;
|
||||
unsigned r, g, b, a, inva;
|
||||
|
||||
if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
|
||||
r = DRAW_MUL(_r, _a);
|
||||
g = DRAW_MUL(_g, _a);
|
||||
b = DRAW_MUL(_b, _a);
|
||||
a = _a;
|
||||
} else {
|
||||
r = _r;
|
||||
g = _g;
|
||||
b = _b;
|
||||
a = _a;
|
||||
}
|
||||
inva = (a ^ 0xff);
|
||||
|
||||
if (y1 == y2) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_MUL_RGB, draw_end);
|
||||
break;
|
||||
default:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
|
||||
break;
|
||||
}
|
||||
} else if (x1 == x2) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_MUL_RGB, draw_end);
|
||||
break;
|
||||
default:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
|
||||
break;
|
||||
}
|
||||
} else if (ABS(x1 - x2) == ABS(y1 - y2)) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_MUL_RGB, draw_end);
|
||||
break;
|
||||
default:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_BLEND_RGB, DRAW_SETPIXELXY4_BLEND_RGB,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_BLEND_CLAMPED_RGB, DRAW_SETPIXELXY4_BLEND_CLAMPED_RGB,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_ADD_RGB, DRAW_SETPIXELXY4_ADD_RGB,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_MOD_RGB, DRAW_SETPIXELXY4_MOD_RGB,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_MUL_RGB, DRAW_SETPIXELXY4_MUL_RGB,
|
||||
draw_end);
|
||||
break;
|
||||
default:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_RGB, DRAW_SETPIXELXY4_BLEND_RGB,
|
||||
draw_end);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void SDL_BlendLine_RGBA4(SDL_Surface *dst, int x1, int y1, int x2, int y2,
|
||||
SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
|
||||
bool draw_end)
|
||||
{
|
||||
const SDL_PixelFormatDetails *fmt = dst->fmt;
|
||||
unsigned r, g, b, a, inva;
|
||||
|
||||
if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
|
||||
r = DRAW_MUL(_r, _a);
|
||||
g = DRAW_MUL(_g, _a);
|
||||
b = DRAW_MUL(_b, _a);
|
||||
a = _a;
|
||||
} else {
|
||||
r = _r;
|
||||
g = _g;
|
||||
b = _b;
|
||||
a = _a;
|
||||
}
|
||||
inva = (a ^ 0xff);
|
||||
|
||||
if (y1 == y2) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_MUL_RGBA, draw_end);
|
||||
break;
|
||||
default:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
|
||||
break;
|
||||
}
|
||||
} else if (x1 == x2) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_MUL_RGBA, draw_end);
|
||||
break;
|
||||
default:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
|
||||
break;
|
||||
}
|
||||
} else if (ABS(x1 - x2) == ABS(y1 - y2)) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_MUL_RGBA, draw_end);
|
||||
break;
|
||||
default:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_BLEND_RGBA, DRAW_SETPIXELXY4_BLEND_RGBA,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_BLEND_CLAMPED_RGBA, DRAW_SETPIXELXY4_BLEND_CLAMPED_RGBA,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_ADD_RGBA, DRAW_SETPIXELXY4_ADD_RGBA,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_MOD_RGBA, DRAW_SETPIXELXY4_MOD_RGBA,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_MUL_RGBA, DRAW_SETPIXELXY4_MUL_RGBA,
|
||||
draw_end);
|
||||
break;
|
||||
default:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY4_RGBA, DRAW_SETPIXELXY4_BLEND_RGBA,
|
||||
draw_end);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void SDL_BlendLine_XRGB8888(SDL_Surface *dst, int x1, int y1, int x2, int y2,
|
||||
SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
|
||||
bool draw_end)
|
||||
{
|
||||
unsigned r, g, b, a, inva;
|
||||
|
||||
if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
|
||||
r = DRAW_MUL(_r, _a);
|
||||
g = DRAW_MUL(_g, _a);
|
||||
b = DRAW_MUL(_b, _a);
|
||||
a = _a;
|
||||
} else {
|
||||
r = _r;
|
||||
g = _g;
|
||||
b = _b;
|
||||
a = _a;
|
||||
}
|
||||
inva = (a ^ 0xff);
|
||||
|
||||
if (y1 == y2) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_BLEND_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_ADD_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_MOD_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_MUL_XRGB8888, draw_end);
|
||||
break;
|
||||
default:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_XRGB8888, draw_end);
|
||||
break;
|
||||
}
|
||||
} else if (x1 == x2) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_BLEND_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_ADD_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_MOD_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_MUL_XRGB8888, draw_end);
|
||||
break;
|
||||
default:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_XRGB8888, draw_end);
|
||||
break;
|
||||
}
|
||||
} else if (ABS(x1 - x2) == ABS(y1 - y2)) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_BLEND_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_ADD_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_MOD_XRGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_MUL_XRGB8888, draw_end);
|
||||
break;
|
||||
default:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_XRGB8888, draw_end);
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_BLEND_XRGB8888, DRAW_SETPIXELXY_BLEND_XRGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_BLEND_CLAMPED_XRGB8888, DRAW_SETPIXELXY_BLEND_CLAMPED_XRGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_ADD_XRGB8888, DRAW_SETPIXELXY_ADD_XRGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_MOD_XRGB8888, DRAW_SETPIXELXY_MOD_XRGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_MUL_XRGB8888, DRAW_SETPIXELXY_MUL_XRGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
default:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_XRGB8888, DRAW_SETPIXELXY_BLEND_XRGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void SDL_BlendLine_ARGB8888(SDL_Surface *dst, int x1, int y1, int x2, int y2,
|
||||
SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
|
||||
bool draw_end)
|
||||
{
|
||||
unsigned r, g, b, a, inva;
|
||||
|
||||
if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
|
||||
r = DRAW_MUL(_r, _a);
|
||||
g = DRAW_MUL(_g, _a);
|
||||
b = DRAW_MUL(_b, _a);
|
||||
a = _a;
|
||||
} else {
|
||||
r = _r;
|
||||
g = _g;
|
||||
b = _b;
|
||||
a = _a;
|
||||
}
|
||||
inva = (a ^ 0xff);
|
||||
|
||||
if (y1 == y2) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_MUL_ARGB8888, draw_end);
|
||||
break;
|
||||
default:
|
||||
HLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
|
||||
break;
|
||||
}
|
||||
} else if (x1 == x2) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_MUL_ARGB8888, draw_end);
|
||||
break;
|
||||
default:
|
||||
VLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
|
||||
break;
|
||||
}
|
||||
} else if (ABS(x1 - x2) == ABS(y1 - y2)) {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_BLEND_CLAMPED_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_MUL_ARGB8888, draw_end);
|
||||
break;
|
||||
default:
|
||||
DLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
switch (blendMode) {
|
||||
case SDL_BLENDMODE_BLEND:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_BLEND_ARGB8888, DRAW_SETPIXELXY_BLEND_ARGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_BLEND_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_BLEND_CLAMPED_ARGB8888, DRAW_SETPIXELXY_BLEND_CLAMPED_ARGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_ADD:
|
||||
case SDL_BLENDMODE_ADD_PREMULTIPLIED:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_ADD_ARGB8888, DRAW_SETPIXELXY_ADD_ARGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MOD:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_MOD_ARGB8888, DRAW_SETPIXELXY_MOD_ARGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
case SDL_BLENDMODE_MUL:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_MUL_ARGB8888, DRAW_SETPIXELXY_MUL_ARGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
default:
|
||||
AALINE(x1, y1, x2, y2,
|
||||
DRAW_SETPIXELXY_ARGB8888, DRAW_SETPIXELXY_BLEND_ARGB8888,
|
||||
draw_end);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
typedef void (*BlendLineFunc)(SDL_Surface *dst,
|
||||
int x1, int y1, int x2, int y2,
|
||||
SDL_BlendMode blendMode,
|
||||
Uint8 r, Uint8 g, Uint8 b, Uint8 a,
|
||||
bool draw_end);
|
||||
|
||||
static BlendLineFunc SDL_CalculateBlendLineFunc(const SDL_PixelFormatDetails *fmt)
|
||||
{
|
||||
switch (fmt->bytes_per_pixel) {
|
||||
case 2:
|
||||
if (fmt->Rmask == 0x7C00) {
|
||||
return SDL_BlendLine_RGB555;
|
||||
} else if (fmt->Rmask == 0xF800) {
|
||||
return SDL_BlendLine_RGB565;
|
||||
} else {
|
||||
return SDL_BlendLine_RGB2;
|
||||
}
|
||||
// break; -Wunreachable-code-break
|
||||
case 4:
|
||||
if (fmt->Rmask == 0x00FF0000) {
|
||||
if (fmt->Amask) {
|
||||
return SDL_BlendLine_ARGB8888;
|
||||
} else {
|
||||
return SDL_BlendLine_XRGB8888;
|
||||
}
|
||||
} else {
|
||||
if (fmt->Amask) {
|
||||
return SDL_BlendLine_RGBA4;
|
||||
} else {
|
||||
return SDL_BlendLine_RGB4;
|
||||
}
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
bool SDL_BlendLine(SDL_Surface *dst, int x1, int y1, int x2, int y2, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
|
||||
{
|
||||
BlendLineFunc func;
|
||||
|
||||
if (!SDL_SurfaceValid(dst)) {
|
||||
return SDL_InvalidParamError("SDL_BlendLine(): dst");
|
||||
}
|
||||
|
||||
func = SDL_CalculateBlendLineFunc(dst->fmt);
|
||||
if (!func) {
|
||||
return SDL_SetError("SDL_BlendLine(): Unsupported surface format");
|
||||
}
|
||||
|
||||
// Perform clipping
|
||||
// FIXME: We don't actually want to clip, as it may change line slope
|
||||
if (!SDL_GetRectAndLineIntersection(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
func(dst, x1, y1, x2, y2, blendMode, r, g, b, a, true);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool SDL_BlendLines(SDL_Surface *dst, const SDL_Point *points, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
|
||||
{
|
||||
int i;
|
||||
int x1, y1;
|
||||
int x2, y2;
|
||||
bool draw_end;
|
||||
BlendLineFunc func;
|
||||
|
||||
if (!SDL_SurfaceValid(dst)) {
|
||||
return SDL_SetError("SDL_BlendLines(): Passed NULL destination surface");
|
||||
}
|
||||
|
||||
func = SDL_CalculateBlendLineFunc(dst->fmt);
|
||||
if (!func) {
|
||||
return SDL_SetError("SDL_BlendLines(): Unsupported surface format");
|
||||
}
|
||||
|
||||
for (i = 1; i < count; ++i) {
|
||||
x1 = points[i - 1].x;
|
||||
y1 = points[i - 1].y;
|
||||
x2 = points[i].x;
|
||||
y2 = points[i].y;
|
||||
|
||||
// Perform clipping
|
||||
// FIXME: We don't actually want to clip, as it may change line slope
|
||||
if (!SDL_GetRectAndLineIntersection(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// Draw the end if it was clipped
|
||||
draw_end = (x2 != points[i].x || y2 != points[i].y);
|
||||
|
||||
func(dst, x1, y1, x2, y2, blendMode, r, g, b, a, draw_end);
|
||||
}
|
||||
if (points[0].x != points[count - 1].x || points[0].y != points[count - 1].y) {
|
||||
SDL_BlendPoint(dst, points[count - 1].x, points[count - 1].y,
|
||||
blendMode, r, g, b, a);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
#endif // SDL_VIDEO_RENDER_SW
|
||||
Reference in New Issue
Block a user