renamed gles2 components to gles

render/gles/shaders/embed.sh

@@ -0,0 +1,11 @@
+#!/bin/sh -eu
+
+var=${1:-data}
+hex="$(od -A n -t x1 -v)"
+
+echo "static const char $var[] = {"
+for byte in $hex; do
+	echo "	0x$byte,"
+done
+echo "	0x00,"
+echo "};"

render/gles/shaders/gles2_common.vert

@@ -0,0 +1,10 @@
+uniform mat3 proj;
+uniform mat3 tex_proj;
+attribute vec2 pos;
+varying vec2 v_texcoord;
+
+void main() {
+	vec3 pos3 = vec3(pos, 1.0);
+	gl_Position = vec4(pos3 * proj, 1.0);
+	v_texcoord = (pos3 * tex_proj).xy;
+}

render/gles/shaders/gles2_quad.frag

@@ -0,0 +1,13 @@
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+
+varying vec4 v_color;
+varying vec2 v_texcoord;
+uniform vec4 color;
+
+void main() {
+	gl_FragColor = color;
+}

render/gles/shaders/gles2_tex_external.frag

@@ -0,0 +1,15 @@
+#extension GL_OES_EGL_image_external : require
+
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+
+varying vec2 v_texcoord;
+uniform samplerExternalOES texture0;
+uniform float alpha;
+
+void main() {
+	gl_FragColor = texture2D(texture0, v_texcoord) * alpha;
+}

render/gles/shaders/gles2_tex_rgba.frag

@@ -0,0 +1,13 @@
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+uniform float alpha;
+
+void main() {
+	gl_FragColor = texture2D(tex, v_texcoord) * alpha;
+}

render/gles/shaders/gles2_tex_rgbx.frag

@@ -0,0 +1,13 @@
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+uniform float alpha;
+
+void main() {
+	gl_FragColor = vec4(texture2D(tex, v_texcoord).rgb, 1.0) * alpha;
+}

render/gles/shaders/meson.build

@@ -0,0 +1,30 @@
+embed = find_program('./embed.sh', native: true)
+
+shaders = [
+	'gles2_common.vert',
+	'gles2_quad.frag',
+	'gles2_tex_rgba.frag',
+	'gles2_tex_rgbx.frag',
+	'gles2_tex_external.frag',
+]
+
+foreach name : shaders
+	custom_target(
+		'gles-' + name,
+		input: name,
+		output: name + '_check',
+		command: [glslang, '@INPUT@'],
+		build_by_default: true,
+	)
+
+	output = name.underscorify() + '_src.h'
+	var = name.underscorify() + '_src'
+	wlr_files += custom_target(
+		output,
+		command: [embed, var],
+		input: name,
+		output: output,
+		feed: true,
+		capture: true,
+	)
+endforeach