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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance2/rendering/read-draw-when-missing-image.html')
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diff --git a/dom/canvas/test/webgl-conf/checkout/conformance2/rendering/read-draw-when-missing-image.html b/dom/canvas/test/webgl-conf/checkout/conformance2/rendering/read-draw-when-missing-image.html new file mode 100644 index 0000000000..a9d8c74b9d --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance2/rendering/read-draw-when-missing-image.html @@ -0,0 +1,288 @@ +<!-- +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +--> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>Read or Draw when Attachment(s) Miss Image</title> +<link rel="stylesheet" href="../../resources/js-test-style.css"/> +<script src="../../js/js-test-pre.js"></script> +<script src="../../js/webgl-test-utils.js"></script> +</head> +<body> +<canvas id="example" width="8" height="8"></canvas> +<div id="description"></div> +<div id="console"></div> + +<script> +"use strict"; + +var wtu = WebGLTestUtils; +description("This test verifies the functionality of reading/drawing when color attachment(s) miss image."); + +var gl = wtu.create3DContext("example", undefined, 2); + +var tex_read = gl.createTexture(); +var tex_draw = gl.createTexture(); +var tex_depth = gl.createTexture(); +var tex_stencil = gl.createTexture(); +var fbo_read = gl.createFramebuffer(); +var fbo_draw = gl.createFramebuffer(); +var size = 8; + +if (!gl) { + testFailed("WebGL context does not exist"); +} else { + testPassed("WebGL context exists"); + + // READ_FRAMEBUFFER has image at COLOR_ATTACHMENT0. READ_FRAMEBUFFER is framebuffer complete. + // Read from COLOR_ATTACHMENT1, which has no image attached. + init_read_fbo(); + read(); + + // DRAW_FRAMEBUFFER has image at COLOR_ATTACHMENT0. DRAW_FRAMEBUFFER is framebuffer complete. + // Clear and draw COLOR_ATTACHMENT1 or COLOR_ATTACHMENT0 + COLOR_ATTACHMENT1 attaching point(s). + init_draw_fbo(); + clear(); + draw(); + + blit(); +} + +function init_read_fbo() { + gl.bindTexture(gl.TEXTURE_2D, tex_read); + wtu.fillTexture(gl, tex_read, size, size, [0x0, 0xff, 0xff, 0xff], 0, gl.RGBA, gl.UNSIGNED_BYTE, gl.RGBA8); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.framebufferTexture2D(gl.READ_FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex_read, 0); + if (gl.checkFramebufferStatus(gl.READ_FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { + testFailed("Framebuffer incomplete."); + return; + } else { + testPassed("framebuffer complete!"); + } +} + +function init_draw_fbo() { + gl.bindTexture(gl.TEXTURE_2D, tex_draw); + wtu.fillTexture(gl, tex_draw, size, size, [0x0, 0xff, 0xff, 0xff], 0, gl.RGBA, gl.UNSIGNED_BYTE, gl.RGBA8); + wtu.fillTexture(gl, tex_depth, size, size, [0x80], 0, gl.DEPTH_COMPONENT, gl.UNSIGNED_INT, gl.DEPTH_COMPONENT16); + wtu.fillTexture(gl, tex_stencil, size, size, [0x40], 0, gl.DEPTH_STENCIL, gl.UNSIGNED_INT_24_8, gl.DEPTH24_STENCIL8); + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.framebufferTexture2D(gl.DRAW_FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex_draw, 0); + if (gl.checkFramebufferStatus(gl.DRAW_FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { + testFailed("Framebuffer incomplete."); + return; + } else { + testPassed("framebuffer complete!"); + } +} + +function read() { + debug(""); + debug("read from a color buffer which has no image attached"); + + gl.bindFramebuffer(gl.FRAMEBUFFER, fbo_read); + gl.readBuffer(gl.COLOR_ATTACHMENT1); + + var data = new Uint8Array(size * size * 4); + gl.readPixels(0, 0, size, size, gl.RGBA, gl.UNSIGNED_BYTE, data); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Should generate INVALID_OPERATION when reading from a color buffer without image."); + + var copy_2d = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, copy_2d); + gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, 0, 0, size, size, 0); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Should generate INVALID_OPERATION when reading from a color buffer without image."); + + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, size, size, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); + gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, size / 2, size / 2, 0, 0, size / 2, size / 2); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Should generate INVALID_OPERATION when reading from a color buffer without image."); + + var copy_3d = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_3D, copy_3d); + gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA8, size, size, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); + gl.copyTexSubImage3D(gl.TEXTURE_3D, 0, size / 2, size / 2, 0, 0, 0, size / 2, size / 2); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Should generate INVALID_OPERATION when reading from a color buffer without image."); + + gl.bindTexture(gl.TEXTURE_2D, null); + gl.deleteTexture(copy_2d); + gl.bindTexture(gl.TEXTURE_3D, null); + gl.deleteTexture(copy_3d); +} + +function checkTextureValue(fbo, buffer, value) { + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo); + gl.readBuffer(buffer); + wtu.checkCanvas(gl, value); + gl.readBuffer(gl.COLOR_ATTACHMENT0); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, null); +} + +function clear() { + debug(""); + debug("clear a color buffer which has no image attached"); + + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + var color = [0.0, 1.0, 0.0, 1.0]; + gl.clearColor(color[0], color[1], color[2], color[3]); + gl.drawBuffers([gl.NONE, gl.COLOR_ATTACHMENT1]); + gl.clear(gl.COLOR_BUFFER_BIT); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 should not be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [0, 255, 255, 255]); + + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.drawBuffers([gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]); + gl.clear(gl.COLOR_BUFFER_BIT); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 should be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [0, 255, 0, 255]); + + var data = new Float32Array(color); + gl.clearBufferfv(gl.COLOR, 1, data); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); +} + +function draw() { + debug(""); + debug("draw to a color buffer which has no image attached"); + + var program = wtu.setupSimpleColorProgram(gl, 0); + gl.uniform4f(gl.getUniformLocation(program, "u_color"), 1, 0, 0, 1); + wtu.setupUnitQuad(gl, 0); + + // Call to drawArrays + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.drawBuffers([gl.NONE, gl.COLOR_ATTACHMENT1]); + wtu.drawUnitQuad(gl); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 should not be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [0, 255, 0, 255]); + + gl.drawBuffers([gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]); + wtu.drawUnitQuad(gl); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 should be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [255, 0, 0, 255]); + + // Call to drawElements + gl.uniform4f(gl.getUniformLocation(program, "u_color"), 1, 1, 0, 1); + wtu.setupIndexedQuad(gl, 1); + gl.drawBuffers([gl.NONE, gl.COLOR_ATTACHMENT1]); + wtu.drawIndexedQuad(gl, 1); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 should not be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [255, 0, 0, 255]); + + gl.drawBuffers([gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]); + wtu.drawIndexedQuad(gl, 1); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 should be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [255, 255, 0, 255]); +} + +function blit() { + debug(""); + debug("blit color buffer(s) which have no image attached"); + // Some or all draw buffers have no image. Read buffer have image. It should be OK. + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.readBuffer(gl.COLOR_ATTACHMENT0); + gl.drawBuffers([gl.NONE, gl.COLOR_ATTACHMENT1]); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.COLOR_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 in draw fbo should not be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [255, 255, 0, 255]); + + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.readBuffer(gl.COLOR_ATTACHMENT0); + gl.drawBuffers([gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.COLOR_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 in draw fbo should be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [0, 255, 255, 255]); + + // Draw buffer(s) have no image. Read buffer have no image. It should be OK. + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.readBuffer(gl.COLOR_ATTACHMENT1); + gl.drawBuffers([gl.NONE, gl.COLOR_ATTACHMENT1]); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.COLOR_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // The image color at COLOR_ATTACHMENT0 in draw fbo should not be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [0, 255, 255, 255]); + + // Read buffer have no image. Some or all draw buffers have image. It should generate INVALID_OPERATION. + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.readBuffer(gl.COLOR_ATTACHMENT1); + gl.drawBuffers([gl.COLOR_ATTACHMENT0]); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.COLOR_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Should generate INVALID_OPERATION when read buffer misses image."); + // The image color at COLOR_ATTACHMENT0 in draw fbo should not be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [0, 255, 255, 255]); + + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.readBuffer(gl.COLOR_ATTACHMENT1); + gl.drawBuffers([gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.COLOR_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Should generate INVALID_OPERATION when read buffer misses image."); + // The image color at COLOR_ATTACHMENT0 in draw fbo should not be changed. + checkTextureValue(fbo_draw, gl.COLOR_ATTACHMENT0, [0, 255, 255, 255]); + + // Depth buffer in read fbo has no image. It should generate INVALID_OPERATION if depth buffer in draw fbo has image. + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.framebufferTexture2D(gl.DRAW_FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.TEXTURE_2D, tex_depth, 0); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.DEPTH_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Should generate INVALID_OPERATION when depth buffer misses image."); + + // Depth buffer in read fbo has no image. It should be OK if depth buffer in draw fbo has no image too. + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.framebufferTexture2D(gl.DRAW_FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.TEXTURE_2D, null, 0); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.DEPTH_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // Validate some other parameters as usual + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.DEPTH_BUFFER_BIT, gl.LINEAR); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid filter"); + + // Stencil buffer in read fbo has no image. It should generate INVALID_OPERATION if stencil buffer in draw fbo has image. + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.framebufferTexture2D(gl.DRAW_FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.TEXTURE_2D, tex_stencil, 0); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.STENCIL_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Should generate INVALID_OPERATION when stencil buffer misses image."); + + // Stencil buffer in read fbo has no image. It should be OK if stencil buffer in draw fbo has no image too. + gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, fbo_draw); + gl.bindFramebuffer(gl.READ_FRAMEBUFFER, fbo_read); + gl.framebufferTexture2D(gl.DRAW_FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.TEXTURE_2D, null, 0); + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.STENCIL_BUFFER_BIT, gl.NEAREST); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no error."); + // Validate some other parameters as usual + gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.STENCIL_BUFFER_BIT, gl.LINEAR); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid filter"); +} + +gl.bindTexture(gl.TEXTURE_2D, null); +gl.bindFramebuffer(gl.READ_FRAMEBUFFER, null); +gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, null); +gl.deleteTexture(tex_read); +gl.deleteTexture(tex_draw); +gl.deleteTexture(tex_depth); +gl.deleteTexture(tex_stencil); +gl.deleteFramebuffer(fbo_read); +gl.deleteFramebuffer(fbo_draw); + +var successfullyParsed = true; +</script> +<script src="../../js/js-test-post.js"></script> + +</body> +</html> |