Bug 223321

https://www.khronos.org/registry/webgl/sdk/tests/conformance/reading/read-pixels-test.html?webglVersion=1&quiet=0&quick=1 Checks that ReadPixels works as expected. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". antialias = false checking: in range PASS color pixel at 0, 0 should be about 51,153,102,255, was = 51,153,102,255 PASS color pixel at 1, 0 should be about 51,153,102,255, was = 51,153,102,255 PASS color pixel at 0, 1 should be about 51,153,102,255, was = 51,153,102,255 PASS color pixel at 1, 1 should be about 51,153,102,255, was = 51,153,102,255 checking: off top left FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 PASS color pixel at 1, 1 should be about 51,153,102,255, was = 51,153,102,255 checking: off bottom right PASS color pixel at 0, 0 should be about 51,153,102,255, was = 51,153,102,255 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 checking: completely off top FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 checking: completely off bottom FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 checking: completely off left FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 checking: completeley off right FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 PASS getError was expected value: NO_ERROR : there should be no GL errors check non-default format or type PASS getError was expected value: INVALID_ENUM : Should not be able to read as DEPTH_COMPONENT PASS getError was expected value: INVALID_ENUM : Should not be able to read as DEPTH_STENCIL PASS getError was expected value: INVALID_ENUM : Should not be able to read as 0x8229 PASS getError was expected value: INVALID_ENUM : Should not be able to read as RGBA4 PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as LUMINANCE PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as LUMINANCE_ALPHA PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as 0x1903 PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as 0x8228 PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as 0x8d99 PASS getError was expected value: INVALID_ENUM : Should not be able to read as 0x84fa PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as UNSIGNED_SHORT PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as SHORT PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as BYTE PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as UNSIGNED_INT PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as 0x8368 check invalid combinations of format/type IMPLEMENTATION_COLOR_READ_FORMAT: RGBA IMPLEMENTATION_COLOR_READ_TYPE: UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / UNSIGNED_SHORT_5_6_5 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / UNSIGNED_SHORT_5_5_5_1 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / UNSIGNED_SHORT_4_4_4_4 PASS getError was expected value: NO_ERROR : Should be able to read as RGBA / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / 0x8d61 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / 0x8d61 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / 0x8d61 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / 0x8d61 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / 0x8d61 check reading with lots of drawing PASS actual is expected PASS actual is expected PASS actual is expected PASS getError was expected value: NO_ERROR : there should be no GL errors check readback into Uint8ClampedArray PASS getError was expected value: NO_ERROR : there should be no GL errors reading back into a Uint8ClampedArray PASS Readback into Uint8ClampedArray worked successfully PASS `gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8Array(4));` should not throw. PASS `gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8Array(new ArrayBuffer(4)));` should not throw. PASS `gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8ClampedArray(4));` should not throw. PASS `gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8ClampedArray(new ArrayBuffer(4)));` should not throw. antialias = true checking: in range PASS color pixel at 0, 0 should be about 51,153,102,255, was = 51,153,102,255 PASS color pixel at 1, 0 should be about 51,153,102,255, was = 51,153,102,255 PASS color pixel at 0, 1 should be about 51,153,102,255, was = 51,153,102,255 PASS color pixel at 1, 1 should be about 51,153,102,255, was = 51,153,102,255 checking: off top left FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 PASS color pixel at 1, 1 should be about 51,153,102,255, was = 51,153,102,255 checking: off bottom right PASS color pixel at 0, 0 should be about 51,153,102,255, was = 51,153,102,255 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 checking: completely off top FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 checking: completely off bottom FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 checking: completely off left FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 checking: completeley off right FAIL color pixel at 0, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 0 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 0, 1 should be about 19,72,0,198, was = 0,0,0,0 FAIL color pixel at 1, 1 should be about 19,72,0,198, was = 0,0,0,0 PASS getError was expected value: NO_ERROR : there should be no GL errors check non-default format or type FAIL getError expected: INVALID_ENUM. Was INVALID_OPERATION : Should not be able to read as DEPTH_COMPONENT PASS getError was expected value: INVALID_ENUM : Should not be able to read as DEPTH_STENCIL PASS getError was expected value: INVALID_ENUM : Should not be able to read as 0x8229 PASS getError was expected value: INVALID_ENUM : Should not be able to read as RGBA4 PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as LUMINANCE PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as LUMINANCE_ALPHA PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as 0x1903 PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as 0x8228 PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as 0x8d99 PASS getError was expected value: INVALID_ENUM : Should not be able to read as 0x84fa PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as UNSIGNED_SHORT PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as SHORT PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as BYTE PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as UNSIGNED_INT PASS getError was one of: INVALID_ENUM or INVALID_OPERATION : Should not be able to read as 0x8368 check invalid combinations of format/type IMPLEMENTATION_COLOR_READ_FORMAT: RGBA IMPLEMENTATION_COLOR_READ_TYPE: UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / UNSIGNED_SHORT_5_6_5 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / UNSIGNED_SHORT_5_5_5_1 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / UNSIGNED_SHORT_4_4_4_4 PASS getError was expected value: NO_ERROR : Should be able to read as RGBA / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / UNSIGNED_BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / BYTE PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / UNSIGNED_SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / SHORT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / UNSIGNED_INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / INT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / FLOAT PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGBA / 0x8d61 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as RGB / 0x8d61 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE_ALPHA / 0x8d61 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as ALPHA / 0x8d61 PASS getError was one of: INVALID_OPERATION or INVALID_ENUM : Should not be able to read as LUMINANCE / 0x8d61 check reading with lots of drawing PASS actual is expected PASS actual is expected PASS actual is expected PASS getError was expected value: NO_ERROR : there should be no GL errors check readback into Uint8ClampedArray PASS getError was expected value: NO_ERROR : there should be no GL errors reading back into a Uint8ClampedArray PASS Readback into Uint8ClampedArray worked successfully PASS `gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8Array(4));` should not throw. PASS `gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8Array(new ArrayBuffer(4)));` should not throw. PASS `gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8ClampedArray(4));` should not throw. PASS `gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8ClampedArray(new ArrayBuffer(4)));` should not throw. PASS successfullyParsed is true TEST COMPLETE

At least macOS 11.3, iMacPro1,1, Radeon Pro Vega 56

<rdar://problem/75772729>