third_party/WebKit/LayoutTests/fast/canvas/webgl/copy-tex-image-and-sub-image-2d.html - Issue 1601093008: Remove duplicated WebGL layout tests.

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Issue 1601093008: Remove duplicated WebGL layout tests. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 11 months ago

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1 <html>

2 <head>

3 <script src="../../../resources/js-test.js"></script>

4 <script src="resources/webgl-test.js"></script>

5 <script id="vshader" type="x-shader/x-vertex">

6 attribute vec3 g_Position;

7 attribute vec2 g_TexCoord0;

8

9 varying vec2 texCoord;

10

11 void main()

12 {

13 gl_Position = vec4(g_Position.x, g_Position.y, g_Position.z, 1.0);

14 texCoord = g_TexCoord0;

15 }

16 </script>

17

18 <script id="fshader" type="x-shader/x-fragment">

19 #ifdef GL_ES

20 precision mediump float;

21 #endif

22 uniform sampler2D tex;

23 varying vec2 texCoord;

24 void main()

25 {

26 gl_FragColor = texture2D(tex, texCoord);

27 }

28 </script>

29

30 <script>

31

32 function init()

33 {

34 if (window.initNonKhronosFramework) {

35 window.initNonKhronosFramework(true);

36 }

37

38 description('Verify copyTexImage2D and copyTexSubImage2D');

39

40 runTest();

41 }

42

43 // These two declarations need to be global for "shouldBe" to see them

44 var pixel = [0, 0, 0];

45 var correctColor = null;

46 var gl = null;

47

48 function runTestIteration(antialias)

49 {

50 if (antialias)

51 gl = initWebGL("antialiasOn", "vshader", "fshader", [ "g_Position", "g_T exCoord0" ], [ 0, 0, 0, 1 ], 1);

52 else

53 gl = initWebGL("antialiasOff", "vshader", "fshader", [ "g_Position", "g_ TexCoord0" ], [ 0, 0, 0, 1 ], 1, { antialias: false });

54

55 var textureLoc = gl.getUniformLocation(gl.program, "tex");

56

57 var vertices = new Float32Array([

58 1.0, 1.0, 0.0,

59 -1.0, 1.0, 0.0,

60 -1.0, -1.0, 0.0,

61 1.0, 1.0, 0.0,

62 -1.0, -1.0, 0.0,

63 1.0, -1.0, 0.0]);

64 var texCoords = new Float32Array([

65 1.0, 1.0,

66 0.0, 1.0,

67 0.0, 0.0,

68 1.0, 1.0,

69 0.0, 0.0,

70 1.0, 0.0]);

71 var texCoordOffset = vertices.byteLength;

72

73 var vbo = gl.createBuffer();

74 gl.bindBuffer(gl.ARRAY_BUFFER, vbo);

75 gl.bufferData(gl.ARRAY_BUFFER,

76 texCoordOffset + texCoords.byteLength,

77 gl.STATIC_DRAW);

78 gl.bufferSubData(gl.ARRAY_BUFFER, 0, vertices);

79 gl.bufferSubData(gl.ARRAY_BUFFER, texCoordOffset, texCoords);

80

81 gl.enableVertexAttribArray(0);

82 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);

83 gl.enableVertexAttribArray(1);

84 gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, texCoordOffset);

85

86 gl.colorMask(1, 1, 1, 0);

87 gl.disable(gl.BLEND);

88 debug('Testing copyTexImage2D');

89

90 // Red canvas

91 gl.clearColor(1, 0, 0, 1);

92 gl.clear(gl.COLOR_BUFFER_BIT \| gl.DEPTH_BUFFER_BIT);

93

94 var texture = gl.createTexture();

95 // Bind the texture to texture unit 0

96 gl.bindTexture(gl.TEXTURE_2D, texture);

97 // Set up texture

98 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);

99 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);

100 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);

101

102 glErrorShouldBe(gl, gl.NO_ERROR);

103 gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, 2, 2, 0);

104 glErrorShouldBe(gl, gl.NO_ERROR);

105

106 // Green canvas

107 gl.clearColor(0, 1, 0, 1);

108 gl.clear(gl.COLOR_BUFFER_BIT \| gl.DEPTH_BUFFER_BIT);

109

110 // Point the uniform sampler to texture unit 0

111 gl.uniform1i(textureLoc, 0);

112 // Draw the triangles

113 gl.drawArrays(gl.TRIANGLES, 0, 6);

114

115 // Read back the rendering results, should be red

116 var buf = new Uint8Array(2 * 2 * 4);

117 gl.readPixels(0, 0, 2, 2, gl.RGBA, gl.UNSIGNED_BYTE, buf);

118 var idx = 0;

119 correctColor = [255, 0, 0];

120 for (var y = 0; y < 2; y++) {

121 for (var x = 0; x < 2; x++) {

122 idx = (y * 2 + x) * 4;

123 pixel[0] = buf[idx];

124 pixel[1] = buf[idx + 1];

125 pixel[2] = buf[idx + 2];

126 shouldBe("pixel", "correctColor");

127 }

128 }

129

130 debug('Testing copyTexSubImage2D');

131

132 // Green canvas

133 gl.clearColor(0, 1, 0, 1);

134 gl.clear(gl.COLOR_BUFFER_BIT \| gl.DEPTH_BUFFER_BIT);

135

136 glErrorShouldBe(gl, gl.NO_ERROR);

137 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 0, 0, 2, 2);

138 glErrorShouldBe(gl, gl.NO_ERROR);

139

140 // Blue canvas

141 gl.clearColor(0, 0, 1, 1);

142 gl.clear(gl.COLOR_BUFFER_BIT \| gl.DEPTH_BUFFER_BIT);

143

144 // Draw the triangles

145 gl.drawArrays(gl.TRIANGLES, 0, 6);

146

147 // Read back the rendering results, should be green

148 gl.readPixels(0, 0, 2, 2, gl.RGBA, gl.UNSIGNED_BYTE, buf);

149 correctColor = [0, 255, 0];

150 for (var y = 0; y < 2; y++) {

151 for (var x = 0; x < 2; x++) {

152 idx = (y * 2 + x) * 4;

153 pixel[0] = buf[idx];

154 pixel[1] = buf[idx + 1];

155 pixel[2] = buf[idx + 2];

156 shouldBe("pixel", "correctColor");

157 }

158 }

159 }

160

161 function runTest(antialias)

162 {

163 debug("Testing with antialias on");

164 runTestIteration(true);

165 debug("Testing with antialias off");

166 runTestIteration(false);

167 finishJSTest();

168 }

169 </script>

170 </head>

171 <body onload="init()">

172 <canvas id="antialiasOn" width="2px" height="2px"></canvas>

173 <canvas id="antialiasOff" width="2px" height="2px"></canvas>

174 <div id="description"></div>

175 <div id="console"></div>

176 </body>

177 </html>

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