| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <canvas id="canvas" width="40" height="40"></canvas> |
| <script> |
| description("Test that texStorage2D() works."); |
| |
| if (window.internals) |
| internals.settings.setWebGL2Enabled(true); |
| |
| var canvas = document.getElementById("canvas"); |
| var width = canvas.width; |
| var height = canvas.height; |
| var gl = canvas.getContext("webgl2"); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| |
| var texture = gl.createTexture(); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| gl.bindTexture(gl.TEXTURE_2D, texture); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| |
| var width = 4; |
| var height = 4; |
| debug("asdf"); |
| gl.texStorage2D(gl.TEXTURE_2D, 1, gl.RGBA8, width, height); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| |
| var framebuffer = gl.createFramebuffer(); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE"); |
| |
| var receiver = new Uint8Array(width * height * 4); |
| for (var i = 0; i < width * height * 4; ++i) { |
| receiver[i] = 1; |
| } |
| |
| gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, receiver); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| for (var i = 0; i < width * height * 4; ++i) { |
| shouldBe("receiver[i]", "0"); |
| } |
| |
| gl.texStorage2D(gl.TEXTURE_2D, 1, gl.RGBA8, width, height); |
| shouldNotBe("gl.getError()", "gl.NO_ERROR"); |
| |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, receiver); |
| shouldNotBe("gl.getError()", "gl.NO_ERROR"); |
| |
| for (var i = 0; i < width * height * 4; ++i) { |
| receiver[i] = 1; |
| } |
| gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, receiver); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| |
| for (var i = 0; i < width * height * 4; ++i) { |
| receiver[i] = 0; |
| } |
| gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, receiver); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| |
| for (var i = 0; i < width * height * 4; ++i) { |
| shouldBe("receiver[i]", "1"); |
| } |
| |
| gl.deleteFramebuffer(framebuffer); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| |
| gl.deleteTexture(texture); |
| shouldBe("gl.getError()", "gl.NO_ERROR"); |
| </script> |
| <script src="../../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
