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Fix x indexing into VRAM

This commit is contained in:
Jeffrey Pfau 2013-05-07 21:48:46 -07:00
parent 5388fb8cea
commit f278805255
1 changed files with 1 additions and 1 deletions
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2
src/gba/renderers/video-glsl.c
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@ -29,7 +29,7 @@ static const GLchar* _fragmentShader =
"uniform int bg2vofs;\n"
"uniform int bg3hofs;\n"
"uniform int bg3vofs;\n"
"#define VRAM_INDEX(i) (vec2(mod(float(i), 512.0) / 511.0, (160.0 + floor(float(i) / 512.0)) / 255.0))\n"
"#define VRAM_INDEX(i) (vec2(mod(float(i + 1), 512.0) / 512.0 - 1.0 / 1024.0, (160.0 + floor(float(i) / 512.0)) / 255.0))\n"
"#define DESERIALIZE(vec) int(dot(vec4(63488.0, 1984.0, 62.0, 1.0), vec))\n"
"vec4 backgroundMode0(int bgcnt, int hofs, int vofs) {\n"