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ImageData supports more formats: r8, rg8, r16, rg16, r16f, rg16f, r32f, rg32f. Format conversion via ImageData:paste is not supported for those (yet).

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This commit is contained in:
Alex Szpakowski
2019-04-28 12:09:16 -03:00
parent 8b51dc831d
commit 372a55c6ac
4 changed files with 348 additions and 140 deletions
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src/modules/image/wrap_ImageData.lua
+92 -20
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@@ -86,32 +86,47 @@ typedef struct FFI_ImageData
half (*floatToHalf)(float f);
} FFI_ImageData;
typedef struct ImageData_Pixel_RGBA8
{
uint8_t r, g, b, a;
} ImageData_Pixel_RGBA8;
struct ImageData_Pixel_R8 { uint8_t r; };
struct ImageData_Pixel_RG8 { uint8_t r, g; };
struct ImageData_Pixel_RGBA8 { uint8_t r, g, b, a; };
typedef struct ImageData_Pixel_RGBA16
{
uint16_t r, g, b, a;
} ImageData_Pixel_RGBA16;
struct ImageData_Pixel_R16 { uint16_t r; };
struct ImageData_Pixel_RG16 { uint16_t r, g; };
struct ImageData_Pixel_RGBA16 { uint16_t r, g, b, a; };
typedef struct ImageData_Pixel_RGBA16F
{
half r, g, b, a;
} ImageData_Pixel_RGBA16F;
struct ImageData_Pixel_R16F { half r; };
struct ImageData_Pixel_RG16F { half r, g; };
struct ImageData_Pixel_RGBA16F { half r, g, b, a; };
typedef struct ImageData_Pixel_RGBA32F
{
float r, g, b, a;
} ImageData_Pixel_RGBA32F;
struct ImageData_Pixel_R32F { float r; };
struct ImageData_Pixel_RG32F { float r, g; };
struct ImageData_Pixel_RGBA32F { float r, g, b, a; };
]])
local ffifuncs = ffi.cast("FFI_ImageData *", ffifuncspointer)
local conversions = {
r8 = {
pointer = ffi.typeof("struct ImageData_Pixel_R8 *"),
tolua = function(self)
return tonumber(self.r) / 255, 0, 0, 1
end,
fromlua = function(self, r)
self.r = clamp01(r) * 255
end,
},
rg8 = {
pointer = ffi.typeof("struct ImageData_Pixel_RG8 *"),
tolua = function(self)
return tonumber(self.r) / 255, tonumber(self.g) / 255, 0, 1
end,
fromlua = function(self, r, g)
self.r = clamp01(r) * 255
self.g = clamp01(g) * 255
end,
},
rgba8 = {
pointer = ffi.typeof("ImageData_Pixel_RGBA8 *"),
pointer = ffi.typeof("struct ImageData_Pixel_RGBA8 *"),
tolua = function(self)
return tonumber(self.r) / 255, tonumber(self.g) / 255, tonumber(self.b) / 255, tonumber(self.a) / 255
end,
@@ -122,8 +137,27 @@ local conversions = {
self.a = a == nil and 255 or clamp01(a) * 255
end,
},
r16 = {
pointer = ffi.typeof("struct ImageData_Pixel_R16 *"),
tolua = function(self)
return tonumber(self.r) / 65535, 0, 0, 1
end,
fromlua = function(self, r)
self.r = clamp01(r) * 65535
end,
},
rg16 = {
pointer = ffi.typeof("struct ImageData_Pixel_RG16 *"),
tolua = function(self)
return tonumber(self.r) / 65535, tonumber(self.g) / 65535, 0, 1
end,
fromlua = function(self, r, g)
self.r = clamp01(r) * 65535
self.g = clamp01(g) * 65535
end,
},
rgba16 = {
pointer = ffi.typeof("ImageData_Pixel_RGBA16 *"),
pointer = ffi.typeof("struct ImageData_Pixel_RGBA16 *"),
tolua = function(self)
return tonumber(self.r) / 65535, tonumber(self.g) / 65535, tonumber(self.b) / 65535, tonumber(self.a) / 65535
end,
@@ -134,8 +168,27 @@ local conversions = {
self.a = a == nil and 65535 or clamp01(a) * 65535
end,
},
r16f = {
pointer = ffi.typeof("struct ImageData_Pixel_R16F *"),
tolua = function(self)
return tonumber(ffifuncs.halfToFloat(self.r)), 0, 0, 1
end,
fromlua = function(self, r)
self.r = ffifuncs.floatToHalf(r)
end,
},
rg16f = {
pointer = ffi.typeof("struct ImageData_Pixel_RG16F *"),
tolua = function(self)
return tonumber(ffifuncs.halfToFloat(self.r)), tonumber(ffifuncs.halfToFloat(self.g)), 0, 1
end,
fromlua = function(self, r, g, b, a)
self.r = ffifuncs.floatToHalf(r)
self.g = ffifuncs.floatToHalf(g)
end,
},
rgba16f = {
pointer = ffi.typeof("ImageData_Pixel_RGBA16F *"),
pointer = ffi.typeof("struct ImageData_Pixel_RGBA16F *"),
tolua = function(self)
return tonumber(ffifuncs.halfToFloat(self.r)),
tonumber(ffifuncs.halfToFloat(self.g)),
@@ -149,8 +202,27 @@ local conversions = {
self.a = ffifuncs.floatToHalf(a == nil and 1.0 or a)
end,
},
r32f = {
pointer = ffi.typeof("struct ImageData_Pixel_R32F *"),
tolua = function(self)
return tonumber(self.r), 0, 0, 1
end,
fromlua = function(self, r, g, b, a)
self.r = r
end,
},
rg32f = {
pointer = ffi.typeof("struct ImageData_Pixel_RG32F *"),
tolua = function(self)
return tonumber(self.r), tonumber(self.g), 0, 1
end,
fromlua = function(self, r, g, b, a)
self.r = r
self.g = g
end,
},
rgba32f = {
pointer = ffi.typeof("ImageData_Pixel_RGBA32F *"),
pointer = ffi.typeof("struct ImageData_Pixel_RGBA32F *"),
tolua = function(self)
return tonumber(self.r), tonumber(self.g), tonumber(self.b), tonumber(self.a)
end,