Merge pull request #21318 from karroffel/gles2-shader-fixes

[GLES2] attempt to fix some android problems

drivers/gles2/rasterizer_scene_gles2.cpp

@@ -107,7 +107,7 @@ void RasterizerSceneGLES2::shadow_atlas_set_size(RID p_atlas, int p_size) {
 		glActiveTexture(GL_TEXTURE0);
 		glGenTextures(1, &shadow_atlas->depth);
 		glBindTexture(GL_TEXTURE_2D, shadow_atlas->depth);
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, shadow_atlas->size, shadow_atlas->size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, shadow_atlas->size, shadow_atlas->size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
 
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
@@ -2426,7 +2426,7 @@ void RasterizerSceneGLES2::initialize() {
 			glBindTexture(GL_TEXTURE_CUBE_MAP, cube.cubemap);
 
 			for (int i = 0; i < 6; i++) {
-				glTexImage2D(_cube_side_enum[i], 0, GL_DEPTH_COMPONENT16, cube_size, cube_size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NULL);
+				glTexImage2D(_cube_side_enum[i], 0, GL_DEPTH_COMPONENT, cube_size, cube_size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NULL);
 			}
 
 			glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
@@ -2460,7 +2460,7 @@ void RasterizerSceneGLES2::initialize() {
 		glGenTextures(1, &directional_shadow.depth);
 		glBindTexture(GL_TEXTURE_2D, directional_shadow.depth);
 
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, directional_shadow.size, directional_shadow.size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, directional_shadow.size, directional_shadow.size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
 
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

drivers/gles2/shaders/cubemap_filter.glsl

@@ -21,7 +21,12 @@ void main() {
 
 [fragment]
 
-#extension GL_ARB_shader_texture_lod : require
+#extension GL_ARB_shader_texture_lod : enable
+
+#ifndef GL_ARB_shader_texture_lod
+#define texture2DLod(img, coord, lod) texture2D(img, coord)
+#define textureCubeLod(img, coord, lod) textureCube(img, coord)
+#endif
 
 #ifdef USE_GLES_OVER_GL
 #define mediump

drivers/gles2/shaders/scene.glsl

@@ -262,7 +262,12 @@ VERTEX_SHADER_CODE
 }
 
 [fragment]
-#extension GL_ARB_shader_texture_lod : require
+#extension GL_ARB_shader_texture_lod : enable
+
+#ifndef GL_ARB_shader_texture_lod
+#define texture2DLod(img, coord, lod) texture2D(img, coord)
+#define textureCubeLod(img, coord, lod) textureCube(img, coord)
+#endif
 
 #ifdef USE_GLES_OVER_GL
 #define mediump