1 files changed, 86 insertions, 0 deletions
diff --git a/modules/gles/gl_shader.cpp b/modules/gles/gl_shader.cpp
new file mode 100644
index 0000000..1810c70
--- /dev/null
+++ b/modules/gles/gl_shader.cpp
@@ -0,0 +1,86 @@
+/*
+ * gl_shader.cpp - GL shader
+ *
+ *  Copyright (c) 2018 Intel Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Author: Wind Yuan <feng.yuan@intel.com>
+ */
+
+#include "gl_shader.h"
+
+namespace XCam {
+
+GLShader::GLShader (GLuint id, GLenum type, const char *name)
+    : _shader_type (type)
+    , _shader_id (id)
+{
+    XCAM_ASSERT (name);
+    strncpy (_name, name, XCAM_GL_NAME_LENGTH - 1);
+}
+
+GLShader::~GLShader ()
+{
+    if (_shader_id) {
+        glDeleteShader (_shader_id);
+
+        GLenum error = gl_error ();
+        if (error != GL_NO_ERROR) {
+            XCAM_LOG_WARNING (
+                "GL Shader delete shader failed, error flag: %s",
+                gl_error_string (error));
+        }
+    }
+}
+
+SmartPtr<GLShader>
+GLShader::compile_shader (const GLShaderInfo &info)
+{
+    GLuint shader_id = glCreateShader (info.type);
+    GLenum error = gl_error ();
+    XCAM_FAIL_RETURN (
+        ERROR, shader_id && (error == GL_NO_ERROR), NULL,
+        "GL create shader(:%s) failed, error flag: %s",
+        XCAM_STR (info.name), gl_error_string (error));
+
+    GLint tmp_len = info.len ? info.len : strlen (info.src);
+    glShaderSource (shader_id, 1, &info.src, &tmp_len);
+    XCAM_FAIL_RETURN (
+        ERROR, (error = gl_error ()) == GL_NO_ERROR, NULL,
+        "GL create shader(:%s) failed in source loading, error flag: %s",
+        XCAM_STR (info.name), gl_error_string (error));
+
+    glCompileShader (shader_id);
+    error = gl_error ();
+
+    GLint status;
+    glGetShaderiv (shader_id, GL_COMPILE_STATUS, &status);
+    if (status == GL_FALSE) {
+        GLint length;
+        std::vector<char> compile_log;
+        glGetShaderiv (shader_id, GL_INFO_LOG_LENGTH, &length);
+        compile_log.resize (length + 1);
+        glGetShaderInfoLog (shader_id, length, &length, &compile_log[0]);
+        XCAM_LOG_ERROR (
+            "GL create sharder(:%s) compile failed, error flag: %s, log: %s",
+            XCAM_STR (info.name), gl_error_string (error), compile_log.data());
+        return NULL;
+    }
+
+    SmartPtr<GLShader> shader =
+        new GLShader (shader_id, info.type, (info.name ? info.name : "null"));
+    return shader;
+}
+
+}