mirror of
https://github.com/libretro/RetroArch.git
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a7c63f973b
use a gemotry shader to simulate sprite primitives. move gpu state commands to the initial display list.
87 lines
1.5 KiB
GLSL
87 lines
1.5 KiB
GLSL
.const c20, 1.0, 1.0, 1.0, 1.0
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.const c21, 0.0, 0.0, 0.0, 0.0
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.const c22, 0.0, 1.0, 0.0, 1.0
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.const c23, 0.0, 0.0, -1.0, 1.0
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; .in v0, x0,y0,x1,y1
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; .in v1, tex_w,tex_h
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.out o0, result.position, 0xF
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.out o1, result.color, 0xF
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.out o2, result.texcoord0, 0x3
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; .uniform c0, c0, scale_vector
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.vsh main_vsh, endmain_vsh
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.gsh main_gsh, endmain_gsh
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main_vsh:
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mul r0, c0, v0 (0x1)
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add o0, c20, r0 (0x0)
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mul r1, c0, v1 (0x2)
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mov r1, c21 (0x3)
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add o1, c22, r1 (0x0)
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nop
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end
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endmain_vsh:
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main_gsh:
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setemit vtx0, false, false
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mov o0, v0 (0x3)
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mov o0, c23 (0x2)
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mov o1, c20 (0x0)
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mov o2, v1 (0x0)
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emit
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setemit vtx1, false, false
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mov o0, v0 (0x4)
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mov o0, v0 (0x8)
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mov o0, c23 (0x2)
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mov o1, c20 (0x0)
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mov o2, v1 (0x7)
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mov o2, v1 (0x9)
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emit
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setemit vtx2, true, true
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mov o0, v0 (0x6)
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mov o0, c23 (0x2)
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mov o1, c20 (0x0)
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mov o2, v1 (0xB)
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emit
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setemit vtx1, true, false
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mov o0, v0 (0x7)
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mov o0, v0 (0x5)
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mov o0, c23 (0x2)
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mov o1, c20 (0x0)
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mov o2, v1 (0x4)
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mov o2, v1 (0xA)
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emit
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nop
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end
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endmain_gsh:
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; operand descriptors
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.opdesc xyzw, xyzw, xyzw ; 0x0
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.opdesc xyzw, yxyx, yxwz ; 0x1
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.opdesc __zw, zwzw, xyxy ; 0x2
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.opdesc xy__, xyzw, xyzw ; 0x3
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.opdesc x___, xyzw, xyzw ; 0x4
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.opdesc _y__, xyzw, xyzw ; 0x5
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.opdesc xy__, zwzw, zwzw ; 0x6
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.opdesc x___, zwzw, zwzw ; 0x7
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.opdesc _y__, zwzw, zwzw ; 0x8
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.opdesc _yzw, xyxy, xyxy ; 0x9
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.opdesc _yzw, zwzw, zwzw ; 0xA
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.opdesc xyzw, zwzw, zwzw ; 0xB
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