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Merged
RobDangerous merged 6 commits into from
Sep 1, 2026
Merged

RGBA64U texture format #1534

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c50db75
RGBA64U texture format
RblSb May 4, 2026
bd912e3
missing cases
RblSb May 4, 2026
a6deb75
do it like in hxcpp
RblSb May 4, 2026
3486ef9
render targets
RblSb May 18, 2026
8475261
Merge branch 'main' into rgba64u
RblSb Aug 11, 2026
fd572eb
Last missing cases
RblSb Aug 31, 2026
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3 changes: 3 additions & 0 deletions Backends/HTML5-Worker/kha/Image.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -109,6 +109,8 @@ class Image implements Canvas implements Resource {
bytes = Bytes.alloc(2 * width * height);
case RGBA64:
bytes = Bytes.alloc(8 * width * height);
case RGBA64U:
bytes = Bytes.alloc(8 * width * height);
case A32:
bytes = Bytes.alloc(4 * width * height);
case A16:
Expand Down Expand Up @@ -177,6 +179,7 @@ class Image implements Canvas implements Resource {
case RGBA128: 16;
case DEPTH16: 2;
case RGBA64: 8;
case RGBA64U: 8;
case A32: 4;
case A16: 2;
default: 4;
Expand Down
2 changes: 0 additions & 2 deletions Backends/HTML5/kha/SystemImpl.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -399,7 +399,6 @@ class SystemImpl {
antialias: options.framebuffer.samplesPerPixel > 1,
stencil: true
}); // preserveDrawingBuffer: true } ); Warning: preserveDrawingBuffer can cause huge performance issues on mobile browsers
SystemImpl.gl.pixelStorei(GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 1);

halfFloat = {HALF_FLOAT_OES: 0x140B}; // GL_HALF_FLOAT
depthTexture = {UNSIGNED_INT_24_8_WEBGL: 0x84FA}; // GL_UNSIGNED_INT_24_8
Expand Down Expand Up @@ -428,7 +427,6 @@ class SystemImpl {
antialias: options.framebuffer.samplesPerPixel > 1,
stencil: true
}); // preserveDrawingBuffer: true } ); WARNING: preserveDrawingBuffer causes huge performance issues (on mobile browser)!
SystemImpl.gl.pixelStorei(GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 1);
SystemImpl.gl.getExtension("OES_texture_float");
SystemImpl.gl.getExtension("OES_texture_float_linear");
halfFloat = SystemImpl.gl.getExtension("OES_texture_half_float");
Expand Down
52 changes: 47 additions & 5 deletions Backends/HTML5/kha/WebGLImage.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,8 @@ class WebGLImage extends Image {
static inline var GL_R16F = 0x822D;
static inline var GL_R32F = 0x822E;
static inline var GL_RED = 0x1903;
static inline var GL_RGBA16UI = 0x8D76;
static inline var GL_RGBA_INTEGER = 0x8D99;
static inline var GL_DEPTH_COMPONENT24 = 0x81A6;
static inline var GL_DEPTH24_STENCIL8 = 0x88F0;
static inline var GL_DEPTH32F_STENCIL8 = 0x8CAD;
Expand Down Expand Up @@ -209,8 +211,11 @@ class WebGLImage extends Image {
SystemImpl.gl.bindTexture(GL.TEXTURE_2D, texture);
// Sys.gl.pixelStorei(Sys.gl.UNPACK_FLIP_Y_WEBGL, true);

SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MAG_FILTER, GL.LINEAR);
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.LINEAR);
// Integer-format textures cannot use linear filtering in webgl2
final isIntegerFormat = myFormat == RGBA64U;
final filter = isIntegerFormat ? GL.NEAREST : GL.LINEAR;
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MAG_FILTER, filter);
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, filter);
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);
if (renderTarget) {
Expand All @@ -227,6 +232,8 @@ class WebGLImage extends Image {
SystemImpl.halfFloat.HALF_FLOAT_OES, null);
case RGBA32:
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, realWidth, realHeight, 0, GL.RGBA, GL.UNSIGNED_BYTE, null);
case RGBA64U:
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL_RGBA16UI, realWidth, realHeight, 0, GL_RGBA_INTEGER, GL.UNSIGNED_SHORT, null);
case A32:
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, SystemImpl.gl2 ? GL_R32F : GL.ALPHA, realWidth, realHeight, 0,
SystemImpl.gl2 ? GL_RED : GL.ALPHA, GL.FLOAT, null);
Expand Down Expand Up @@ -262,6 +269,8 @@ class WebGLImage extends Image {
untyped SystemImpl.gl.RGBA16F;
case RGBA32:
untyped SystemImpl.gl.RGBA8;
case RGBA64U:
GL_RGBA16UI;
case A32:
GL_R32F;
case A16:
Expand All @@ -288,7 +297,10 @@ class WebGLImage extends Image {
SystemImpl.gl.bindFramebuffer(GL.FRAMEBUFFER, null);
}
else if (video != null) {
// premultiply alpha for dom videos
SystemImpl.gl.pixelStorei(GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 1);
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, GL.RGBA, GL.UNSIGNED_BYTE, video);
SystemImpl.gl.pixelStorei(GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 0);
}
else {
switch (myFormat) {
Expand All @@ -302,8 +314,13 @@ class WebGLImage extends Image {
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, myWidth, myHeight, 0, GL.RGBA, GL.UNSIGNED_BYTE, image);
}
else {
// premultiply alpha for dom images
SystemImpl.gl.pixelStorei(GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 1);
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, GL.RGBA, GL.UNSIGNED_BYTE, image);
SystemImpl.gl.pixelStorei(GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 0);
}
case RGBA64U:
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL_RGBA16UI, myWidth, myHeight, 0, GL_RGBA_INTEGER, GL.UNSIGNED_SHORT, image);
case A32:
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, SystemImpl.gl2 ? GL_R32F : GL.ALPHA, myWidth, myHeight, 0, SystemImpl.gl2 ? GL_RED : GL.ALPHA,
GL.FLOAT, image);
Expand All @@ -313,7 +330,10 @@ class WebGLImage extends Image {
case L8:
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL.LUMINANCE, myWidth, myHeight, 0, GL.LUMINANCE, GL.UNSIGNED_BYTE, image);
default:
// premultiply alpha for dom images
SystemImpl.gl.pixelStorei(GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 1);
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, GL.RGBA, GL.UNSIGNED_BYTE, image);
SystemImpl.gl.pixelStorei(GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 0);
}
}
SystemImpl.gl.bindTexture(GL.TEXTURE_2D, null);
Expand Down Expand Up @@ -419,6 +439,7 @@ class WebGLImage extends Image {
case RGBA128: 16;
case DEPTH16: 2;
case RGBA64: 8;
case RGBA64U: 8;
case A32: 4;
case A16: 2;
default: 4;
Expand All @@ -429,6 +450,8 @@ class WebGLImage extends Image {
return switch (myFormat) {
case RGBA32, L8:
new Uint8Array(bytes.getData());
case RGBA64U:
new Uint16Array(bytes.getData());
case RGBA128, RGBA64, A32, A16:
new Float32Array(bytes.getData());
default:
Expand Down Expand Up @@ -458,8 +481,10 @@ class WebGLImage extends Image {
SystemImpl.gl.bindTexture(GL.TEXTURE_2D, texture);
// Sys.gl.pixelStorei(Sys.gl.UNPACK_FLIP_Y_WEBGL, true);

SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MAG_FILTER, GL.LINEAR);
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.LINEAR);
final isIntegerFormat = myFormat == RGBA64U;
final filter = isIntegerFormat ? GL.NEAREST : GL.LINEAR;
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MAG_FILTER, filter);
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, filter);
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
SystemImpl.gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);
}
Expand Down Expand Up @@ -517,6 +542,13 @@ class WebGLImage extends Image {
SystemImpl.gl.texSubImage2D(GL.TEXTURE_2D, 0, 0, 0, width, height, GL.RGBA, GL.UNSIGNED_BYTE, bytesToArray(bytes));
else
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, width, height, 0, GL.RGBA, GL.UNSIGNED_BYTE, bytesToArray(bytes));
case RGBA64U:
SystemImpl.gl.pixelStorei(GL.UNPACK_ALIGNMENT, 2);
if (isStorageAllocated)
SystemImpl.gl.texSubImage2D(GL.TEXTURE_2D, 0, 0, 0, width, height, GL_RGBA_INTEGER, GL.UNSIGNED_SHORT, bytesToArray(bytes));
else
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, 0, GL_RGBA16UI, width, height, 0, GL_RGBA_INTEGER, GL.UNSIGNED_SHORT, bytesToArray(bytes));
SystemImpl.gl.pixelStorei(GL.UNPACK_ALIGNMENT, 4);
default:
if (isStorageAllocated)
SystemImpl.gl.texSubImage2D(GL.TEXTURE_2D, 0, 0, 0, width, height, GL.RGBA, GL.UNSIGNED_BYTE, bytesToArray(bytes));
Expand All @@ -541,7 +573,7 @@ class WebGLImage extends Image {
switch (myFormat) {
case RGBA128, A32:
pixels = new Float32Array(Std.int(formatByteSize(myFormat) / 4) * width * height);
case RGBA64, A16:
case RGBA64, A16, RGBA64U:
pixels = new Uint16Array(Std.int(formatByteSize(myFormat) / 2) * width * height);
case RGBA32, L8:
pixels = new Uint8Array(formatByteSize(myFormat) * width * height);
Expand All @@ -557,6 +589,8 @@ class WebGLImage extends Image {
SystemImpl.gl.readPixels(0, 0, myWidth, myHeight, GL.RGBA, SystemImpl.halfFloat.HALF_FLOAT_OES, pixels);
case RGBA32:
SystemImpl.gl.readPixels(0, 0, myWidth, myHeight, GL.RGBA, GL.UNSIGNED_BYTE, pixels);
case RGBA64U:
SystemImpl.gl.readPixels(0, 0, myWidth, myHeight, GL_RGBA_INTEGER, GL.UNSIGNED_SHORT, pixels);
case A32:
SystemImpl.gl.readPixels(0, 0, myWidth, myHeight, SystemImpl.gl2 ? GL_RED : GL.ALPHA, GL.FLOAT, pixels);
case A16:
Expand Down Expand Up @@ -607,6 +641,14 @@ class WebGLImage extends Image {
SystemImpl.halfFloat.HALF_FLOAT_OES, cast(mipmaps[i], WebGLImage).image);
}
}
else if (myFormat == TextureFormat.RGBA64U) {
SystemImpl.gl.pixelStorei(GL.UNPACK_ALIGNMENT, 2);
for (i in 0...mipmaps.length) {
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, i + 1, GL_RGBA16UI, mipmaps[i].width, mipmaps[i].height, 0, GL_RGBA_INTEGER, GL.UNSIGNED_SHORT,
cast(mipmaps[i], WebGLImage).image);
}
SystemImpl.gl.pixelStorei(GL.UNPACK_ALIGNMENT, 4);
}
else {
for (i in 0...mipmaps.length) {
SystemImpl.gl.texImage2D(GL.TEXTURE_2D, i + 1, GL.RGBA, GL.RGBA, GL.UNSIGNED_BYTE, cast(mipmaps[i], WebGLImage).image);
Expand Down
12 changes: 10 additions & 2 deletions Backends/HTML5/kha/graphics4/CubeMap.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,8 @@ class CubeMap implements Canvas implements Resource {
static inline var GL_RGBA32F = 0x8814;
static inline var GL_R16F = 0x822D;
static inline var GL_R32F = 0x822E;
static inline var GL_RGBA16UI = 0x8D76;
static inline var GL_RGBA_INTEGER = 0x8D99;
static inline var GL_DEPTH_COMPONENT24 = 0x81A6;
static inline var GL_DEPTH24_STENCIL8 = 0x88F0;
static inline var GL_DEPTH32F_STENCIL8 = 0x8CAD;
Expand Down Expand Up @@ -51,8 +53,10 @@ class CubeMap implements Canvas implements Resource {
texture = SystemImpl.gl.createTexture();
SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, texture);

SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MAG_FILTER, GL.LINEAR);
SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MIN_FILTER, GL.LINEAR);
final isIntegerFormat = format == RGBA64U;
final filter = isIntegerFormat ? GL.NEAREST : GL.LINEAR;
SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MAG_FILTER, filter);
SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MIN_FILTER, filter);
SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);

Expand All @@ -76,6 +80,10 @@ class CubeMap implements Canvas implements Resource {
case RGBA32:
for (i in 0...6)
SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.RGBA, myWidth, myHeight, 0, GL.RGBA, GL.UNSIGNED_BYTE, null);
case RGBA64U:
for (i in 0...6)
SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGBA16UI, myWidth, myHeight, 0, GL_RGBA_INTEGER, GL.UNSIGNED_SHORT,
null);
case A32:
for (i in 0...6)
SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, SystemImpl.gl2 ? GL_R32F : GL.ALPHA, myWidth, myHeight, 0, GL.ALPHA,
Expand Down
7 changes: 6 additions & 1 deletion Backends/Kore-HL/kha/Image.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -103,6 +103,8 @@ class Image implements Canvas implements Resource {
return 5;
case A16: // Target16BitRedFloat
return 6;
case RGBA64U: // Target64BitInteger
return 7;
default:
return 0;
}
Expand Down Expand Up @@ -142,6 +144,8 @@ class Image implements Canvas implements Resource {
return 5;
case A16:
return 7;
case RGBA64U:
return 8;
default:
return 1; // Grey8
}
Expand All @@ -154,7 +158,7 @@ class Image implements Canvas implements Resource {
if (renderTarget)
image.initRenderTarget(width, height, getDepthBufferBits(depthStencil), getRenderTargetFormat(format), getStencilBufferBits(depthStencil));
else
image.init(width, height, format);
image.init(width, height, getTextureFormat(format));
return image;
}

Expand Down Expand Up @@ -334,6 +338,7 @@ class Image implements Canvas implements Resource {
case RGBA128: 16;
case DEPTH16: 2;
case RGBA64: 8;
case RGBA64U: 8;
case A32: 4;
case A16: 2;
default: 4;
Expand Down
4 changes: 4 additions & 0 deletions Backends/Kore-HL/kha/graphics4/CubeMap.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,8 @@ class CubeMap implements Canvas implements Resource {
return 3;
case DEPTH16: // Target16BitDepth
return 4;
case RGBA64U: // Target64BitInteger
return 7;
default:
return 0;
}
Expand Down Expand Up @@ -75,6 +77,8 @@ class CubeMap implements Canvas implements Resource {
return 4;
case A32:
return 5;
case RGBA64U:
return 8;
default:
return 1; // Grey 8
}
Expand Down
5 changes: 4 additions & 1 deletion Backends/Kore-HL/kinc-bridge/shader.c.h
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Expand Up @@ -64,8 +64,11 @@ static kinc_g4_render_target_format_t convertColorAttachment(int format) {
case 5:
return KINC_G4_RENDER_TARGET_FORMAT_32BIT_RED_FLOAT;
case 6:
default:
return KINC_G4_RENDER_TARGET_FORMAT_16BIT_RED_FLOAT;
case 7:
return KINC_G4_RENDER_TARGET_FORMAT_64BIT_INTEGER;
default:
return KINC_G4_RENDER_TARGET_FORMAT_32BIT;
}
}

Expand Down
7 changes: 7 additions & 0 deletions Backends/Kore-HL/kinc-bridge/texture.c.h
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Original file line number Diff line number Diff line change
Expand Up @@ -20,13 +20,19 @@ static kinc_image_format_t convertImageFormat(int format) {
case 1:
return KINC_IMAGE_FORMAT_GREY8;
case 2:
return KINC_IMAGE_FORMAT_RGB24;
case 3:
return KINC_IMAGE_FORMAT_RGBA128;
case 4:
return KINC_IMAGE_FORMAT_RGBA64;
case 5:
return KINC_IMAGE_FORMAT_A32;
case 6:
return KINC_IMAGE_FORMAT_BGRA32;
case 7:
return KINC_IMAGE_FORMAT_A16;
case 8:
return KINC_IMAGE_FORMAT_RGBA64U;
}
}

Expand All @@ -38,6 +44,7 @@ static int sizeOf(kinc_image_format_t format) {
case KINC_IMAGE_FORMAT_BGRA32:
return 4;
case KINC_IMAGE_FORMAT_RGBA64:
case KINC_IMAGE_FORMAT_RGBA64U:
return 8;
case KINC_IMAGE_FORMAT_A32:
return 4;
Expand Down
5 changes: 5 additions & 0 deletions Backends/Kore-hxcpp/kha/Image.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -195,6 +195,8 @@ class Image implements Canvas implements Resource {
return 5; // Target8BitRed
case A16:
return 6; // Target16BitRedFloat
case RGBA64U:
return 7; // Target64BitInteger
default:
return 0;
}
Expand Down Expand Up @@ -234,6 +236,8 @@ class Image implements Canvas implements Resource {
return 5;
case A16:
return 7;
case RGBA64U:
return 8;
default:
return 1; // Grey8
}
Expand Down Expand Up @@ -519,6 +523,7 @@ class Image implements Canvas implements Resource {
case RGBA128: 16;
case DEPTH16: 2;
case RGBA64: 8;
case RGBA64U: 8;
case A32: 4;
case A16: 2;
default: 4;
Expand Down
4 changes: 4 additions & 0 deletions Backends/Kore-hxcpp/kha/graphics4/CubeMap.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,8 @@ class CubeMap implements Canvas implements Resource {
return 3;
case DEPTH16: // Target16BitDepth
return 4;
case RGBA64U: // Target64BitInteger
return 7;
default:
return 0;
}
Expand Down Expand Up @@ -74,6 +76,8 @@ class CubeMap implements Canvas implements Resource {
return 4;
case A32:
return 5;
case RGBA64U:
return 8;
default:
return 1; // Grey 8
}
Expand Down
5 changes: 4 additions & 1 deletion Backends/Kore-hxcpp/kha/graphics4/PipelineState.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -72,8 +72,11 @@ static kinc_g4_render_target_format_t convertColorAttachment(int format) {
case 5:
return KINC_G4_RENDER_TARGET_FORMAT_32BIT_RED_FLOAT;
case 6:
default:
return KINC_G4_RENDER_TARGET_FORMAT_16BIT_RED_FLOAT;
case 7:
return KINC_G4_RENDER_TARGET_FORMAT_64BIT_INTEGER;
default:
return KINC_G4_RENDER_TARGET_FORMAT_32BIT;
}
}
")
Expand Down
5 changes: 5 additions & 0 deletions Backends/Krom/kha/Image.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,8 @@ class Image implements Canvas implements Resource {
return 5; // Target8BitRed
case A16:
return 6; // Target16BitRedFloat
case RGBA64U:
return 7; // Target64BitInteger
default:
return 0;
}
Expand Down Expand Up @@ -75,6 +77,8 @@ class Image implements Canvas implements Resource {
return 5;
case A16:
return 7;
case RGBA64U:
return 8;
default:
return 1; // Grey8
}
Expand Down Expand Up @@ -198,6 +202,7 @@ class Image implements Canvas implements Resource {
case RGBA128: 16;
case DEPTH16: 2;
case RGBA64: 8;
case RGBA64U: 8;
case A32: 4;
case A16: 2;
default: 4;
Expand Down
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