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Diffstat (limited to '3rdparty/SDL2/src/render/software/SDL_blendline.c')
-rw-r--r--3rdparty/SDL2/src/render/software/SDL_blendline.c777
1 files changed, 0 insertions, 777 deletions
diff --git a/3rdparty/SDL2/src/render/software/SDL_blendline.c b/3rdparty/SDL2/src/render/software/SDL_blendline.c
deleted file mode 100644
index ef0d585316c..00000000000
--- a/3rdparty/SDL2/src/render/software/SDL_blendline.c
+++ /dev/null
@@ -1,777 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "../../SDL_internal.h"
-
-#if !SDL_RENDER_DISABLED
-
-#include "SDL_draw.h"
-#include "SDL_blendline.h"
-#include "SDL_blendpoint.h"
-
-
-static void
-SDL_BlendLine_RGB2(SDL_Surface * dst, int x1, int y1, int x2, int y2,
- SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
- SDL_bool draw_end)
-{
- const SDL_PixelFormat *fmt = dst->format;
- 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(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
- break;
- default:
- HLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
- break;
- }
- } else if (x1 == x2) {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
- break;
- default:
- VLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
- break;
- }
- } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
- break;
- default:
- DLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
- break;
- }
- } else {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY2_BLEND_RGB, DRAW_SETPIXELXY2_BLEND_RGB,
- draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY2_ADD_RGB, DRAW_SETPIXELXY2_ADD_RGB,
- draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY2_MOD_RGB, DRAW_SETPIXELXY2_MOD_RGB,
- draw_end);
- break;
- default:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY2_RGB, DRAW_SETPIXELXY2_BLEND_RGB,
- draw_end);
- break;
- }
- }
-}
-
-static void
-SDL_BlendLine_RGB555(SDL_Surface * dst, int x1, int y1, int x2, int y2,
- SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
- SDL_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(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
- break;
- default:
- HLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
- break;
- }
- } else if (x1 == x2) {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
- break;
- default:
- VLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
- break;
- }
- } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
- break;
- default:
- DLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
- break;
- }
- } else {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY_BLEND_RGB555, DRAW_SETPIXELXY_BLEND_RGB555,
- draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY_ADD_RGB555, DRAW_SETPIXELXY_ADD_RGB555,
- draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY_MOD_RGB555, DRAW_SETPIXELXY_MOD_RGB555,
- draw_end);
- break;
- default:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY_RGB555, DRAW_SETPIXELXY_BLEND_RGB555,
- draw_end);
- break;
- }
- }
-}
-
-static void
-SDL_BlendLine_RGB565(SDL_Surface * dst, int x1, int y1, int x2, int y2,
- SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
- SDL_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(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
- break;
- default:
- HLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
- break;
- }
- } else if (x1 == x2) {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
- break;
- default:
- VLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
- break;
- }
- } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- DLINE(Uint16, DRAW_SETPIXEL_MOD_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_ADD:
- 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;
- 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,
- SDL_bool draw_end)
-{
- const SDL_PixelFormat *fmt = dst->format;
- 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_ADD:
- HLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- HLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- VLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- VLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- DLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- DLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- 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;
- 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,
- SDL_bool draw_end)
-{
- const SDL_PixelFormat *fmt = dst->format;
- 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_ADD:
- HLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- HLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- VLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- VLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- DLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- DLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- 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;
- default:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY4_RGBA, DRAW_SETPIXELXY4_BLEND_RGBA,
- draw_end);
- break;
- }
- }
-}
-
-static void
-SDL_BlendLine_RGB888(SDL_Surface * dst, int x1, int y1, int x2, int y2,
- SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
- SDL_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_RGB888, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- HLINE(Uint32, DRAW_SETPIXEL_ADD_RGB888, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- HLINE(Uint32, DRAW_SETPIXEL_MOD_RGB888, draw_end);
- break;
- default:
- HLINE(Uint32, DRAW_SETPIXEL_RGB888, draw_end);
- break;
- }
- } else if (x1 == x2) {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- VLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB888, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- VLINE(Uint32, DRAW_SETPIXEL_ADD_RGB888, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- VLINE(Uint32, DRAW_SETPIXEL_MOD_RGB888, draw_end);
- break;
- default:
- VLINE(Uint32, DRAW_SETPIXEL_RGB888, draw_end);
- break;
- }
- } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- DLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB888, draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- DLINE(Uint32, DRAW_SETPIXEL_ADD_RGB888, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- DLINE(Uint32, DRAW_SETPIXEL_MOD_RGB888, draw_end);
- break;
- default:
- DLINE(Uint32, DRAW_SETPIXEL_RGB888, draw_end);
- break;
- }
- } else {
- switch (blendMode) {
- case SDL_BLENDMODE_BLEND:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY_BLEND_RGB888, DRAW_SETPIXELXY_BLEND_RGB888,
- draw_end);
- break;
- case SDL_BLENDMODE_ADD:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY_ADD_RGB888, DRAW_SETPIXELXY_ADD_RGB888,
- draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY_MOD_RGB888, DRAW_SETPIXELXY_MOD_RGB888,
- draw_end);
- break;
- default:
- AALINE(x1, y1, x2, y2,
- DRAW_SETPIXELXY_RGB888, DRAW_SETPIXELXY_BLEND_RGB888,
- 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,
- SDL_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_ADD:
- HLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- HLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- VLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- VLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- DLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
- break;
- case SDL_BLENDMODE_MOD:
- DLINE(Uint32, DRAW_SETPIXEL_MOD_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_ADD:
- 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;
- 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,
- SDL_bool draw_end);
-
-static BlendLineFunc
-SDL_CalculateBlendLineFunc(const SDL_PixelFormat * fmt)
-{
- switch (fmt->BytesPerPixel) {
- 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;
- case 4:
- if (fmt->Rmask == 0x00FF0000) {
- if (fmt->Amask) {
- return SDL_BlendLine_ARGB8888;
- } else {
- return SDL_BlendLine_RGB888;
- }
- } else {
- if (fmt->Amask) {
- return SDL_BlendLine_RGBA4;
- } else {
- return SDL_BlendLine_RGB4;
- }
- }
- }
- return NULL;
-}
-
-int
-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 (!dst) {
- return SDL_SetError("SDL_BlendLine(): Passed NULL destination surface");
- }
-
- func = SDL_CalculateBlendLineFunc(dst->format);
- 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_IntersectRectAndLine(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
- return 0;
- }
-
- func(dst, x1, y1, x2, y2, blendMode, r, g, b, a, SDL_TRUE);
- return 0;
-}
-
-int
-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;
- SDL_bool draw_end;
- BlendLineFunc func;
-
- if (!dst) {
- return SDL_SetError("SDL_BlendLines(): Passed NULL destination surface");
- }
-
- func = SDL_CalculateBlendLineFunc(dst->format);
- 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_IntersectRectAndLine(&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 0;
-}
-
-#endif /* !SDL_RENDER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */