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| 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" | |
| 2 "http://www.w3.org/TR/html4/loose.dtd"> | |
| 3 <html> | |
| 4 <head> | |
| 5 <title>WebGL texImage2D conformance test.</title> | |
| 6 <script src="../../../resources/js-test.js"></script> | |
| 7 <script src="resources/webgl-test.js"> </script> | |
| 8 <script src="resources/webgl-test-utils.js"> </script> | |
| 9 </head> | |
| 10 <body> | |
| 11 <canvas id="example" width="256" height="16" style="width: 256px; height: 48px;"
></canvas> | |
| 12 <div id="description"></div> | |
| 13 <div id="console"></div> | |
| 14 <script> | |
| 15 description("Test texImage2D conversions."); | |
| 16 var wtu = WebGLTestUtils; | |
| 17 var canvas = document.getElementById("example"); | |
| 18 var gl = wtu.create3DContext(canvas); | |
| 19 var program = wtu.setupTexturedQuad(gl); | |
| 20 | |
| 21 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 22 | |
| 23 var imgURLs = [ | |
| 24 'resources/gray-ramp-256-with-128-alpha.png', | |
| 25 'resources/gray-ramp-256.png', | |
| 26 'resources/gray-ramp-default-gamma.png', | |
| 27 'resources/gray-ramp-gamma0.1.png', | |
| 28 'resources/gray-ramp-gamma1.0.png', | |
| 29 'resources/gray-ramp-gamma2.0.png', | |
| 30 'resources/gray-ramp-gamma4.0.png', | |
| 31 'resources/gray-ramp-gamma9.0.png', | |
| 32 'resources/gray-ramp.png', | |
| 33 'resources/zero-alpha.png', | |
| 34 'resources/3x3.png', | |
| 35 'resources/blue-1x1.jpg', | |
| 36 'resources/red-indexed.png', | |
| 37 'resources/green-2x2-16bit.png', | |
| 38 'resources/small-square-with-colorspin-profile.jpg', | |
| 39 'resources/small-square-with-colorspin-profile.png', | |
| 40 'resources/small-square-with-cie-rgb-profile.png', | |
| 41 'resources/small-square-with-colormatch-profile.png', | |
| 42 'resources/small-square-with-e-srgb-profile.png', | |
| 43 'resources/small-square-with-smpte-c-profile.png', | |
| 44 'resources/small-square-with-srgb-iec61966-2.1-profile.png']; | |
| 45 | |
| 46 | |
| 47 wtu.loadImagesAsync(imgURLs, runTests); | |
| 48 | |
| 49 function runTests(imgs) { | |
| 50 var loc = gl.getUniformLocation(program, "tex"); | |
| 51 gl.uniform1i(loc, 0); | |
| 52 | |
| 53 gl.disable(gl.BLEND); | |
| 54 gl.disable(gl.DEPTH_TEST); | |
| 55 | |
| 56 var width = canvas.width; | |
| 57 var height = canvas.height; | |
| 58 | |
| 59 function checkPixel(buf, x, y, color) { | |
| 60 var off = (y * width + x) * 4; | |
| 61 var msg = "pixel " + x + ", " + y + " should be " + | |
| 62 color[0] + ", " + | |
| 63 color[1] + ", " + | |
| 64 color[2] + ", " + | |
| 65 color[3] + " was " + | |
| 66 buf[off + 0] + ", " + | |
| 67 buf[off + 1] + ", " + | |
| 68 buf[off + 2] + ", " + | |
| 69 buf[off + 3]; | |
| 70 | |
| 71 for (var ii = 0; ii < 4; ++ii) { | |
| 72 if (buf[off + ii] != color[ii]) { | |
| 73 testFailed(msg); | |
| 74 return; | |
| 75 } | |
| 76 } | |
| 77 testPassed(msg); | |
| 78 } | |
| 79 | |
| 80 function checkPixelRange(buf, x, y, color, allowedRange) { | |
| 81 var off = (y * width + x) * 4; | |
| 82 var msg = "pixel " + x + ", " + y + " should be within " + | |
| 83 allowedRange + " units of " + | |
| 84 color[0] + ", " + | |
| 85 color[1] + ", " + | |
| 86 color[2] + ", " + | |
| 87 color[3]; | |
| 88 var subMsg = " was " + | |
| 89 buf[off + 0] + ", " + | |
| 90 buf[off + 1] + ", " + | |
| 91 buf[off + 2] + ", " + | |
| 92 buf[off + 3]; | |
| 93 // When running in WebKit's test harness, we don't want to print the | |
| 94 // pixel value when the test passes, because different machines might | |
| 95 // have different results and we record the text output. | |
| 96 var inDumpRenderTree = window.testRunner; | |
| 97 for (var ii = 0; ii < 4; ++ii) { | |
| 98 if (Math.abs(buf[off + ii] - color[ii]) > allowedRange) { | |
| 99 testFailed(msg + subMsg); | |
| 100 return; | |
| 101 } | |
| 102 } | |
| 103 testPassed(msg + (inDumpRenderTree ? "" : subMsg)); | |
| 104 } | |
| 105 | |
| 106 var tex = gl.createTexture(); | |
| 107 gl.bindTexture(gl.TEXTURE_2D, tex); | |
| 108 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); | |
| 109 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); | |
| 110 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); | |
| 111 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); | |
| 112 | |
| 113 var buf = new Uint8Array(width * height * 4); | |
| 114 | |
| 115 debug(""); | |
| 116 debug("check pixels are NOT pre-multiplied"); | |
| 117 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 118 imgs['resources/zero-alpha.png']); | |
| 119 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 120 wtu.drawQuad(gl); | |
| 121 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 122 | |
| 123 var left = 0; | |
| 124 var middle = Math.floor(width / 2); | |
| 125 var right = width - 1; | |
| 126 var bottom = 0; | |
| 127 var center = Math.floor(height / 2); | |
| 128 var top = height - 1; | |
| 129 checkPixel(buf, left, top, [ 0, 0, 0, 255]); | |
| 130 checkPixel(buf, middle, top, [255, 0, 255, 255]); | |
| 131 checkPixel(buf, right, top, [ 0, 0, 255, 255]); | |
| 132 checkPixel(buf, left, center, [128, 128, 128, 255]); | |
| 133 checkPixel(buf, middle, center, [255, 255, 255, 255]); | |
| 134 checkPixel(buf, right, center, [ 0, 255, 255, 255]); | |
| 135 checkPixel(buf, left, bottom, [255, 0, 0, 255]); | |
| 136 checkPixel(buf, middle, bottom, [255, 255, 0, 255]); | |
| 137 checkPixel(buf, right, bottom, [ 0, 255, 0, 255]); | |
| 138 | |
| 139 debug(""); | |
| 140 debug("check quantization"); | |
| 141 var quantInfo = [ | |
| 142 {format: gl.RGBA, type: gl.UNSIGNED_BYTE, counts: [256, 256, 256, 2
56]}, | |
| 143 {format: gl.RGBA, type: gl.UNSIGNED_SHORT_4_4_4_4, counts: [ 16, 16, 16,
16]}, | |
| 144 {format: gl.RGB, type: gl.UNSIGNED_SHORT_5_6_5, counts: [ 32, 64, 32,
1]}, | |
| 145 {format: gl.RGBA, type: gl.UNSIGNED_SHORT_5_5_5_1, counts: [ 32, 32, 32,
2]}]; | |
| 146 for (var qq = 0; qq < quantInfo.length; ++qq) { | |
| 147 var info = quantInfo[qq]; | |
| 148 gl.texImage2D( | |
| 149 gl.TEXTURE_2D, 0, info.format, info.format, info.type, | |
| 150 imgs['resources/gray-ramp-256.png']); | |
| 151 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 152 wtu.drawQuad(gl); | |
| 153 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 154 var counts = [{ }, { }, { }, { }]; | |
| 155 var numUniqueValues = [0, 0, 0, 0]; | |
| 156 // Count the number of unique values in each channel. | |
| 157 for (var ii = 0; ii < width * height * 4; ii += 4) { | |
| 158 for (var jj = 0; jj < 4; ++jj) { | |
| 159 var v = buf[ii + jj]; | |
| 160 if (!counts[jj][v]) { | |
| 161 counts[jj][v] = 1; | |
| 162 ++numUniqueValues[jj]; | |
| 163 } else { | |
| 164 ++counts[jj][v]; | |
| 165 } | |
| 166 } | |
| 167 } | |
| 168 for (var ii = 0; ii < 4; ++ii) { | |
| 169 assertMsg(numUniqueValues[ii] == info.counts[ii], | |
| 170 "There should be " + info.counts[ii] + | |
| 171 " unique values in channel " + ii + ". Found " + | |
| 172 numUniqueValues[ii]); | |
| 173 } | |
| 174 } | |
| 175 | |
| 176 debug(""); | |
| 177 debug("Check that gamma settings don't effect 8bit pngs"); | |
| 178 gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE); | |
| 179 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 180 imgs['resources/gray-ramp-default-gamma.png']); | |
| 181 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 182 wtu.drawQuad(gl); | |
| 183 var ref = new Uint8Array(width * height * 4); | |
| 184 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, ref); | |
| 185 | |
| 186 var gammaImages = [ | |
| 187 'resources/gray-ramp-gamma0.1.png', | |
| 188 'resources/gray-ramp-gamma1.0.png', | |
| 189 'resources/gray-ramp-gamma2.0.png', | |
| 190 'resources/gray-ramp-gamma4.0.png', | |
| 191 'resources/gray-ramp-gamma9.0.png']; | |
| 192 for (var ii = 0; ii < gammaImages.length; ++ii) { | |
| 193 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 194 imgs[gammaImages[ii]]); | |
| 195 wtu.drawQuad(gl); | |
| 196 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 197 var same = true; | |
| 198 for (var jj = 0; jj < width * height * 4; ++jj) { | |
| 199 if (buf[jj] != ref[jj]) { | |
| 200 same = false; | |
| 201 break; | |
| 202 } | |
| 203 } | |
| 204 assertMsg(same, "pixels should be same regardless of gamma settings."); | |
| 205 } | |
| 206 | |
| 207 debug(""); | |
| 208 debug("check pixels are UN pre-multiplied"); | |
| 209 for (var ii = 0; ii < 2; ++ii) { | |
| 210 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE,
null); | |
| 211 if (ii == 0) { | |
| 212 var canvas2d = document.createElement("canvas"); | |
| 213 canvas2d.width = 256; | |
| 214 canvas2d.height = 1; | |
| 215 var ctx = canvas2d.getContext("2d"); | |
| 216 ctx.drawImage(imgs['resources/gray-ramp-256-with-128-alpha.png'], 0, 0); | |
| 217 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, canvas2d
); | |
| 218 } else { | |
| 219 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 220 imgs['resources/gray-ramp-256-with-128-alpha.png']); | |
| 221 } | |
| 222 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 223 wtu.drawQuad(gl); | |
| 224 var buf = new Uint8Array(width * height * 4); | |
| 225 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 226 var lt128Count = [0, 0, 0]; | |
| 227 var ge128Count = [0, 0, 0]; | |
| 228 for (var jj = 0; jj < width; ++jj) { | |
| 229 var off = jj * 4; | |
| 230 for (var cc = 0; cc < 3; ++cc) { | |
| 231 if (buf[off + cc] < 128) { | |
| 232 ++lt128Count[cc]; | |
| 233 } else { | |
| 234 ++ge128Count[cc]; | |
| 235 } | |
| 236 } | |
| 237 } | |
| 238 // Not sure the exact count here because gamma does effect drawing into the | |
| 239 // canvas but it should be close to 50% so I'll pass 45% | |
| 240 for (var jj = 0; jj < 3; ++jj) { | |
| 241 // Only display the actual percentage string when outside of the test | |
| 242 // harness, to prevent safe variation from causing failures. | |
| 243 var inDumpRenderTree = window.testRunner; | |
| 244 assertMsg(ge128Count[jj] > 256 * 0.45, | |
| 245 "Half the pixels in channel " + jj + | |
| 246 " should be >= 128,128,128. " + | |
| 247 (!inDumpRenderTree ? "found " + | |
| 248 ((ge128Count[jj] / 256) * 100).toFixed() + "%" : "")); | |
| 249 assertMsg(lt128Count[jj] > 256 * 0.45, | |
| 250 "Half the pixels in channel " + jj + | |
| 251 " should be < 128,128,128. " + | |
| 252 (!inDumpRenderTree ? "found " + | |
| 253 ((lt128Count[jj] / 256) * 100).toFixed() + "%" : "")); | |
| 254 } | |
| 255 } | |
| 256 | |
| 257 debug(""); | |
| 258 debug("check canvas pixels are UN pre-multiplied"); | |
| 259 var canvas2d = document.createElement("canvas"); | |
| 260 canvas2d.width = 1; | |
| 261 canvas2d.height = 1; | |
| 262 var ctx = canvas2d.getContext("2d"); | |
| 263 ctx.fillStyle ="rgba(255,255,255,0.5)"; | |
| 264 ctx.fillRect(0, 0, 256, 1); | |
| 265 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d); | |
| 266 wtu.drawQuad(gl); | |
| 267 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 268 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 269 checkPixelRange(buf, 0, 0, [255, 255, 255, 127], 4); | |
| 270 | |
| 271 debug(""); | |
| 272 debug("check canvas pixels are pre-multiplied"); | |
| 273 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true); | |
| 274 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d); | |
| 275 wtu.drawQuad(gl); | |
| 276 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 277 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 278 checkPixelRange(buf, 0, 0, [127, 127, 127, 127], 4); | |
| 279 | |
| 280 | |
| 281 debug(""); | |
| 282 debug("check pixels are pre-multiplied"); | |
| 283 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true); | |
| 284 // TODO(gman): use different texture that won't pass on failure | |
| 285 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, | |
| 286 imgs['resources/zero-alpha.png']); | |
| 287 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 288 wtu.drawQuad(gl); | |
| 289 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 290 | |
| 291 var same = true; | |
| 292 for (var jj = 0; jj < width * height * 4; ++jj) { | |
| 293 if (buf[jj] != 0) { | |
| 294 same = false; | |
| 295 break; | |
| 296 } | |
| 297 } | |
| 298 assertMsg(same, "pixels should all be 0."); | |
| 299 | |
| 300 debug(""); | |
| 301 debug("check pixels are flipped"); | |
| 302 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); | |
| 303 gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true); | |
| 304 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 305 imgs['resources/3x3.png']); | |
| 306 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 307 wtu.drawQuad(gl); | |
| 308 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 309 | |
| 310 checkPixel(buf, left, top, [255, 0, 0, 255]); | |
| 311 checkPixel(buf, middle, top, [255, 255, 0, 255]); | |
| 312 checkPixel(buf, right, top, [255, 0, 0, 255]); | |
| 313 checkPixel(buf, left, center, [255, 0, 255, 255]); | |
| 314 checkPixel(buf, middle, center, [255, 0, 0, 255]); | |
| 315 checkPixel(buf, right, center, [ 0, 255, 0, 255]); | |
| 316 checkPixel(buf, left, bottom, [ 0, 0, 0, 255]); | |
| 317 checkPixel(buf, middle, bottom, [ 0, 0, 255, 255]); | |
| 318 checkPixel(buf, right, bottom, [255, 0, 0, 255]); | |
| 319 | |
| 320 debug(""); | |
| 321 debug("check uploading of images with no alpha channel works"); | |
| 322 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); | |
| 323 gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false); | |
| 324 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 325 imgs['resources/blue-1x1.jpg']); | |
| 326 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 327 wtu.drawQuad(gl); | |
| 328 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 329 checkPixelRange(buf, middle, center, [ 0, 0, 255, 255], 10); | |
| 330 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors"); | |
| 331 | |
| 332 debug(""); | |
| 333 debug("check uploading of 16-bit images"); | |
| 334 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); | |
| 335 gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false); | |
| 336 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 337 imgs['resources/green-2x2-16bit.png']); | |
| 338 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 339 wtu.drawQuad(gl); | |
| 340 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 341 checkPixelRange(buf, middle, center, [ 15, 121, 0, 255], 10); | |
| 342 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors"); | |
| 343 | |
| 344 debug(""); | |
| 345 debug("check uploading of images with ICC profiles"); | |
| 346 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); | |
| 347 gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false); | |
| 348 gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE); | |
| 349 | |
| 350 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 351 imgs['resources/small-square-with-colorspin-profile.jpg']); | |
| 352 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 353 wtu.drawQuad(gl); | |
| 354 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 355 // The image is red. However, if we ignore the color profile, it is blue. | |
| 356 checkPixelRange(buf, middle, center, [ 0, 0, 255, 255], 10); | |
| 357 | |
| 358 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 359 imgs['resources/small-square-with-colorspin-profile.png']); | |
| 360 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 361 wtu.drawQuad(gl); | |
| 362 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 363 // The image is red. However, if we ignore the color profile, it is blue. | |
| 364 checkPixelRange(buf, middle, center, [ 0, 0, 255, 255], 10); | |
| 365 | |
| 366 var iccPNGs = [ | |
| 367 'resources/small-square-with-cie-rgb-profile.png', | |
| 368 'resources/small-square-with-colormatch-profile.png', | |
| 369 'resources/small-square-with-e-srgb-profile.png', | |
| 370 'resources/small-square-with-smpte-c-profile.png', | |
| 371 'resources/small-square-with-srgb-iec61966-2.1-profile.png']; | |
| 372 for (var ii = 0; ii < iccPNGs.length; ++ii) { | |
| 373 var buf2 = new Uint8Array(width * height * 4); | |
| 374 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 375 imgs[iccPNGs[ii]]); | |
| 376 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 377 wtu.drawQuad(gl); | |
| 378 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf2); | |
| 379 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors"); | |
| 380 var same = true; | |
| 381 for (var jj = 0; jj < buf.length; ++jj) { | |
| 382 if (buf[jj] != buf2[jj]) { | |
| 383 same = false; | |
| 384 break; | |
| 385 } | |
| 386 } | |
| 387 assertMsg(same, "uploading PNGs with same data but various ICC profiles shou
ld generate the same results"); | |
| 388 } | |
| 389 | |
| 390 debug(""); | |
| 391 debug("check uploading of indexed PNG images"); | |
| 392 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, | |
| 393 imgs['resources/red-indexed.png']); | |
| 394 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); | |
| 395 wtu.drawQuad(gl); | |
| 396 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 397 // The image should be red. | |
| 398 checkPixelRange(buf, middle, center, [ 255, 0, 0, 255 ], 10); | |
| 399 | |
| 400 debug(""); | |
| 401 isSuccessfullyParsed(); | |
| 402 } | |
| 403 | |
| 404 </script> | |
| 405 </body> | |
| 406 </html> | |
| OLD | NEW |
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Chromium Code Reviews
Issue 1601093008:
Remove duplicated WebGL layout tests. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master