ShuriZma
/
mgba
mirror of https://github.com/mgba-emu/mgba.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

GBA Video: GL BG mosaic

This commit is contained in:
Vicki Pfau 2019-05-20 10:08:56 -07:00
parent 109472f67f
commit d84793edee
2 changed files with 49 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/mgba/internal/gba/renderers/gl.h
View File

@ -92,6 +92,7 @@ enum {
GBA_GL_BG_INFLAGS,
GBA_GL_BG_TRANSFORM,
GBA_GL_BG_RANGE,
GBA_GL_BG_MOSAIC,
GBA_GL_OBJ_VRAM = 2,
GBA_GL_OBJ_PALETTE,

55
src/gba/renderers/gl.c
View File

@ -104,6 +104,7 @@ static const struct GBAVideoGLUniform _uniformsMode0[] = {
{ "size", GBA_GL_BG_SIZE, },
{ "offset", GBA_GL_BG_OFFSET, },
{ "inflags", GBA_GL_BG_INFLAGS, },
{ "mosaic", GBA_GL_BG_MOSAIC, },
{ 0 }
};
@ -116,6 +117,7 @@ static const char* const _renderMode0 =
"uniform int size;\n"
"uniform ivec2 offset;\n"
"uniform ivec4 inflags;\n"
"uniform ivec2 mosaic;\n"
"out vec4 color;\n"
"out vec4 flags;\n"
FLAG_CONST
@ -123,7 +125,14 @@ static const char* const _renderMode0 =
"vec4 renderTile(int tile, int paletteId, ivec2 localCoord);\n"
"void main() {\n"
" ivec2 coord = ivec2(texCoord) + offset;\n"
" ivec2 coord = ivec2(texCoord);\n"
" if (mosaic.x > 1) {\n"
" coord.x -= int(mod(coord.x, mosaic.x));\n"
" }\n"
" if (mosaic.y > 1) {\n"
" coord.y -= int(mod(coord.y, mosaic.y));\n"
" }\n"
" coord += offset;\n"
" if ((size & 1) == 1) {\n"
" coord.y += coord.x & 256;\n"
" }\n"
@ -171,6 +180,7 @@ static const struct GBAVideoGLUniform _uniformsMode2[] = {
{ "offset", GBA_GL_BG_OFFSET, },
{ "transform", GBA_GL_BG_TRANSFORM, },
{ "range", GBA_GL_BG_RANGE, },
{ "mosaic", GBA_GL_BG_MOSAIC, },
{ 0 }
};
@ -194,6 +204,7 @@ static const char* const _renderMode2 =
"uniform ivec2[4] offset;\n"
"uniform ivec2[4] transform;\n"
"uniform vec2 range;\n"
"uniform ivec2 mosaic;\n"
"out vec4 color;\n"
"out vec4 flags;\n"
FLAG_CONST
@ -221,11 +232,18 @@ static const char* const _renderMode2 =
"}\n"
"void main() {\n"
" float y = texCoord.y - range.x;\n"
" vec2 coord = texCoord;\n"
" if (mosaic.x > 1) {\n"
" coord.x -= mod(coord.x, mosaic.x);\n"
" }\n"
" if (mosaic.y > 1) {\n"
" coord.y -= mod(coord.y, mosaic.y);\n"
" }\n"
" float y = coord.y - range.x;\n"
" float lin = 0.5 - y / range.y * 0.25;\n"
" vec2 mixedTransform = interpolate(transform, lin);\n"
" vec2 mixedOffset = interpolate(offset, lin);\n"
" color = fetchTile(ivec2(mixedTransform * texCoord.x + mixedOffset));\n"
" color = fetchTile(ivec2(mixedTransform * coord.x + mixedOffset));\n"
" flags = inflags / flagCoeff;\n"
"}";
@ -239,6 +257,7 @@ static const struct GBAVideoGLUniform _uniformsMode35[] = {
{ "offset", GBA_GL_BG_OFFSET, },
{ "transform", GBA_GL_BG_TRANSFORM, },
{ "range", GBA_GL_BG_RANGE, },
{ "mosaic", GBA_GL_BG_MOSAIC, },
{ 0 }
};
@ -251,6 +270,7 @@ static const char* const _renderMode35 =
"uniform ivec2[4] offset;\n"
"uniform ivec2[4] transform;\n"
"uniform vec2 range;\n"
"uniform ivec2 mosaic;\n"
"out vec4 color;\n"
"out vec4 flags;\n"
FLAG_CONST
@ -260,11 +280,18 @@ static const char* const _renderMode35 =
"vec2 interpolate(ivec2 arr[4], float x);\n"
"void main() {\n"
" float y = texCoord.y - range.x;\n"
" vec2 incoord = texCoord;\n"
" if (mosaic.x > 1) {\n"
" incoord.x -= mod(incoord.x, mosaic.x);\n"
" }\n"
" if (mosaic.y > 1) {\n"
" incoord.y -= mod(incoord.y, mosaic.y);\n"
" }\n"
" float y = incoord.y - range.x;\n"
" float lin = 0.5 - y / range.y * 0.25;\n"
" vec2 mixedTransform = interpolate(transform, lin);\n"
" vec2 mixedOffset = interpolate(offset, lin);\n"
" ivec2 coord = ivec2(mixedTransform * texCoord.x + mixedOffset);\n"
" ivec2 coord = ivec2(mixedTransform * incoord.x + mixedOffset);\n"
" if (coord.x < 0 || coord.x >= (size.x << 8)) {\n"
" discard;\n"
" }\n"
@ -289,6 +316,7 @@ static const struct GBAVideoGLUniform _uniformsMode4[] = {
{ "offset", GBA_GL_BG_OFFSET, },
{ "transform", GBA_GL_BG_TRANSFORM, },
{ "range", GBA_GL_BG_RANGE, },
{ "mosaic", GBA_GL_BG_MOSAIC, },
{ 0 }
};
@ -302,6 +330,7 @@ static const char* const _renderMode4 =
"uniform ivec2[4] offset;\n"
"uniform ivec2[4] transform;\n"
"uniform vec2 range;\n"
"uniform ivec2 mosaic;\n"
"out vec4 color;\n"
"out vec4 flags;\n"
FLAG_CONST
@ -311,11 +340,18 @@ static const char* const _renderMode4 =
"vec2 interpolate(ivec2 arr[4], float x);\n"
"void main() {\n"
" float y = texCoord.y - range.x;\n"
" vec2 incoord = texCoord;\n"
" if (mosaic.x > 1) {\n"
" incoord.x -= mod(incoord.x, mosaic.x);\n"
" }\n"
" if (mosaic.y > 1) {\n"
" incoord.y -= mod(incoord.y, mosaic.y);\n"
" }\n"
" float y = incoord.y - range.x;\n"
" float lin = 0.5 - y / range.y * 0.25;\n"
" vec2 mixedTransform = interpolate(transform, lin);\n"
" vec2 mixedOffset = interpolate(offset, lin);\n"
" ivec2 coord = ivec2(mixedTransform * texCoord.x + mixedOffset);\n"
" ivec2 coord = ivec2(mixedTransform * incoord.x + mixedOffset);\n"
" if (coord.x < 0 || coord.x >= (size.x << 8)) {\n"
" discard;\n"
" }\n"
@ -1284,6 +1320,11 @@ void _prepareBackground(struct GBAVideoGLRenderer* renderer, struct GBAVideoGLBa
glUniform2i(uniforms[GBA_GL_VS_MAXPOS], GBA_VIDEO_HORIZONTAL_PIXELS, GBA_VIDEO_VERTICAL_PIXELS);
glUniform1i(uniforms[GBA_GL_BG_VRAM], 0);
glUniform1i(uniforms[GBA_GL_BG_PALETTE], 1);
if (background->mosaic) {
glUniform2i(uniforms[GBA_GL_BG_MOSAIC], GBAMosaicControlGetBgV(renderer->mosaic), GBAMosaicControlGetBgH(renderer->mosaic));
} else {
glUniform2i(uniforms[GBA_GL_BG_MOSAIC], 0, 0);
}
glUniform4i(uniforms[GBA_GL_BG_INFLAGS], (background->priority << 3) + (background->index << 1) + 1,
background->target1 | (background->target2 * 2) | (renderer->blendEffect * 4),
renderer->blda, 0);