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[client] all: add screen rotation support win:rotate

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Currently only supports EGL, if there is enough demand for OpenGL
support this can be added later.

Closes #231
This commit is contained in:
Geoffrey McRae
2021-01-15 12:40:59 +11:00
parent c40a81ddf4
commit 72c86d7125
11 changed files with 252 additions and 73 deletions
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26
client/renderers/EGL/shader/desktop_rgb.frag
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@@ -7,6 +7,7 @@ uniform sampler2D sampler1;
uniform int nearest;
uniform highp vec2 size;
uniform int rotate;
uniform int nv;
uniform highp float nvGain;
@@ -14,10 +15,31 @@ uniform int cbMode;
void main()
{
highp vec2 ruv;
if (rotate == 0) // up
{
ruv = uv;
}
else if (rotate == 1) // down
{
ruv.x = -uv.x + 1.0f;
ruv.y = -uv.y + 1.0f;
}
else if (rotate == 2) // left
{
ruv.x = -uv.y + 1.0f;
ruv.y = uv.x;
}
else if (rotate == 3) // right
{
ruv.x = uv.y;
ruv.y = -uv.x + 1.0f;
}
if(nearest == 1)
color = texture(sampler1, uv);
color = texture(sampler1, ruv);
else
color = texelFetch(sampler1, ivec2(uv * size), 0);
color = texelFetch(sampler1, ivec2(ruv * size), 0);
if (cbMode > 0)
{