LibGL: Add stubs for shader and program related functions

Author: https://github.com/sunverwerth
Commit: https://github.com/SerenityOS/serenity/commit/4568dcbb55
Pull-request: https://github.com/SerenityOS/serenity/pull/16225
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/gmta ✅
Reviewed-by: https://github.com/supercomputer7

Userland/Libraries/LibGL/CMakeLists.txt

@@ -10,6 +10,7 @@ set(SOURCES
     List.cpp
     Matrix.cpp
     NameAllocator.cpp
+    Shader.cpp
     Stencil.cpp
     Tex/Texture2D.cpp
     Texture.cpp

Userland/Libraries/LibGL/GL/gl.h

@@ -813,6 +813,16 @@ GLAPI void glBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, void
 GLAPI void glDeleteBuffers(GLsizei n, GLuint const* buffers);
 GLAPI void glGenBuffers(GLsizei n, GLuint* buffers);
 
+GLAPI GLuint glCreateShader(GLenum shader_type);
+GLAPI void glDeleteShader(GLuint shader);
+GLAPI void glShaderSource(GLuint shader, GLsizei count, GLchar const** string, GLint const* length);
+GLAPI void glCompileShader(GLuint shader);
+
+GLAPI GLuint glCreateProgram();
+GLAPI void glDeleteProgram(GLuint program);
+GLAPI void glAttachShader(GLuint program, GLuint shader);
+GLAPI void glLinkProgram(GLuint program);
+
 #ifdef __cplusplus
 }
 #endif

Userland/Libraries/LibGL/GLAPI.cpp

@@ -62,6 +62,11 @@ void glArrayElement(GLint i)
     g_gl_context->gl_array_element(i);
 }
 
+void glAttachShader(GLuint program, GLuint shader)
+{
+    g_gl_context->gl_attach_shader(program, shader);
+}
+
 void glBegin(GLenum mode)
 {
     g_gl_context->gl_begin(mode);
@@ -226,6 +231,11 @@ void glColorPointer(GLint size, GLenum type, GLsizei stride, void const* pointer
     g_gl_context->gl_color_pointer(size, type, stride, pointer);
 }
 
+void glCompileShader(GLuint shader)
+{
+    g_gl_context->gl_compile_shader(shader);
+}
+
 void glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border)
 {
     g_gl_context->gl_copy_tex_image_2d(target, level, internalformat, x, y, width, height, border);
@@ -236,6 +246,16 @@ void glCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffse
     g_gl_context->gl_copy_tex_sub_image_2d(target, level, xoffset, yoffset, x, y, width, height);
 }
 
+GLuint glCreateProgram()
+{
+    return g_gl_context->gl_create_program();
+}
+
+GLuint glCreateShader(GLenum shader_type)
+{
+    return g_gl_context->gl_create_shader(shader_type);
+}
+
 void glCullFace(GLenum mode)
 {
     g_gl_context->gl_cull_face(mode);
@@ -266,6 +286,16 @@ void glDeleteLists(GLuint list, GLsizei range)
     return g_gl_context->gl_delete_lists(list, range);
 }
 
+void glDeleteProgram(GLuint program)
+{
+    g_gl_context->gl_delete_program(program);
+}
+
+void glDeleteShader(GLuint shader)
+{
+    g_gl_context->gl_delete_shader(shader);
+}
+
 void glDeleteTextures(GLsizei n, GLuint const* textures)
 {
     g_gl_context->gl_delete_textures(n, textures);
@@ -563,6 +593,11 @@ void glLineWidth(GLfloat width)
     g_gl_context->gl_line_width(width);
 }
 
+void glLinkProgram(GLuint program)
+{
+    g_gl_context->gl_link_program(program);
+}
+
 void glListBase(GLuint base)
 {
     return g_gl_context->gl_list_base(base);
@@ -841,6 +876,11 @@ void glShadeModel(GLenum mode)
     g_gl_context->gl_shade_model(mode);
 }
 
+void glShaderSource(GLuint shader, GLsizei count, GLchar const** string, GLint const* length)
+{
+    g_gl_context->gl_shader_source(shader, count, string, length);
+}
+
 void glStencilFunc(GLenum func, GLint ref, GLuint mask)
 {
     g_gl_context->gl_stencil_func_separate(GL_FRONT_AND_BACK, func, ref, mask);

Userland/Libraries/LibGL/GLContext.h

@@ -228,6 +228,16 @@ public:
     void gl_delete_buffers(GLsizei n, GLuint const* buffers);
     void gl_gen_buffers(GLsizei n, GLuint* buffers);
 
+    GLuint gl_create_shader(GLenum shader_type);
+    void gl_delete_shader(GLuint shader);
+    void gl_shader_source(GLuint shader, GLsizei count, GLchar const** string, GLint const* length);
+    void gl_compile_shader(GLuint shader);
+
+    GLuint gl_create_program();
+    void gl_delete_program(GLuint program);
+    void gl_attach_shader(GLuint program, GLuint shader);
+    void gl_link_program(GLuint program);
+
 private:
     void sync_device_config();
     void sync_device_sampler_config();

Userland/Libraries/LibGL/Shader.cpp

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2022, Stephan Unverwerth <s.unverwerth@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/Debug.h>
+#include <LibGL/GLContext.h>
+
+namespace GL {
+
+GLuint GLContext::gl_create_shader(GLenum shader_type)
+{
+    dbgln("gl_create_shader({}) unimplemented ", shader_type);
+    TODO();
+    return 0;
+}
+
+void GLContext::gl_delete_shader(GLuint shader)
+{
+    dbgln("gl_delete_shader({}) unimplemented ", shader);
+    TODO();
+}
+
+void GLContext::gl_shader_source(GLuint shader, GLsizei count, GLchar const** string, GLint const* length)
+{
+    dbgln("gl_shader_source({}, {}, {#x}, {#x}) unimplemented ", shader, count, string, length);
+    TODO();
+}
+
+void GLContext::gl_compile_shader(GLuint shader)
+{
+    dbgln("gl_compile_shader({}) unimplemented ", shader);
+    TODO();
+}
+
+GLuint GLContext::gl_create_program()
+{
+    dbgln("gl_create_program() unimplemented ");
+    TODO();
+    return 0;
+}
+
+void GLContext::gl_delete_program(GLuint program)
+{
+    dbgln("gl_delete_program({}) unimplemented ", program);
+    TODO();
+}
+
+void GLContext::gl_attach_shader(GLuint program, GLuint shader)
+{
+    dbgln("gl_attach_shader({}, {}) unimplemented ", program, shader);
+    TODO();
+}
+
+void GLContext::gl_link_program(GLuint program)
+{
+    dbgln("gl_link_program({}) unimplemented ", program);
+    TODO();
+}
+
+}