Detect for 24 bits oes support on GLES2, closes #26344

drivers/gles2/rasterizer_scene_gles2.cpp

@@ -113,7 +113,7 @@ 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_COMPONENT, shadow_atlas->size, shadow_atlas->size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+		glTexImage2D(GL_TEXTURE_2D, 0, storage->config.depth_internalformat, shadow_atlas->size, shadow_atlas->size, 0, GL_DEPTH_COMPONENT, storage->config.depth_type, NULL);
 
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
@@ -525,7 +525,7 @@ bool RasterizerSceneGLES2::reflection_probe_instance_begin_render(RID p_instance
 		glActiveTexture(GL_TEXTURE0);
 
 		glBindTexture(GL_TEXTURE_2D, rpi->depth);
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, size, size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+		glTexImage2D(GL_TEXTURE_2D, 0, storage->config.depth_internalformat, size, size, 0, GL_DEPTH_COMPONENT, storage->config.depth_type, NULL);
 
 		if (rpi->cubemap != 0) {
 			glDeleteTextures(1, &rpi->cubemap);
@@ -3271,7 +3271,7 @@ void RasterizerSceneGLES2::initialize() {
 
 			for (int i = 0; i < 6; i++) {
 
-				glTexImage2D(_cube_side_enum[i], 0, GL_DEPTH_COMPONENT, cube_size, cube_size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+				glTexImage2D(_cube_side_enum[i], 0, storage->config.depth_internalformat, cube_size, cube_size, 0, GL_DEPTH_COMPONENT, storage->config.depth_type, NULL);
 			}
 
 			glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
@@ -3305,7 +3305,7 @@ void RasterizerSceneGLES2::initialize() {
 		glGenTextures(1, &directional_shadow.depth);
 		glBindTexture(GL_TEXTURE_2D, directional_shadow.depth);
 
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, directional_shadow.size, directional_shadow.size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+		glTexImage2D(GL_TEXTURE_2D, 0, storage->config.depth_internalformat, directional_shadow.size, directional_shadow.size, 0, GL_DEPTH_COMPONENT, storage->config.depth_type, NULL);
 
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

drivers/gles2/rasterizer_storage_gles2.cpp

@@ -56,6 +56,8 @@ GLuint RasterizerStorageGLES2::system_fbo = 0;
 
 #define _RED_OES 0x1903
 
+#define _DEPTH_COMPONENT24_OES 0x81A6
+
 void RasterizerStorageGLES2::bind_quad_array() const {
 	glBindBuffer(GL_ARRAY_BUFFER, resources.quadie);
 	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, 0);
@@ -4307,7 +4309,7 @@ void RasterizerStorageGLES2::_render_target_allocate(RenderTarget *rt) {
 	glGenTextures(1, &rt->depth);
 	glBindTexture(GL_TEXTURE_2D, rt->depth);
 
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, rt->width, rt->height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+	glTexImage2D(GL_TEXTURE_2D, 0, config.depth_internalformat, rt->width, rt->height, 0, GL_DEPTH_COMPONENT, config.depth_type, NULL);
 
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
@@ -4534,7 +4536,7 @@ RID RasterizerStorageGLES2::canvas_light_shadow_buffer_create(int p_width) {
 	glGenTextures(1, &cls->depth);
 	glBindTexture(GL_TEXTURE_2D, cls->depth);
 
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, cls->size, cls->height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+	glTexImage2D(GL_TEXTURE_2D, 0, config.depth_internalformat, cls->size, cls->height, 0, GL_DEPTH_COMPONENT, config.depth_type, NULL);
 
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
@@ -4974,6 +4976,9 @@ void RasterizerStorageGLES2::initialize() {
 	config.pvrtc_supported = false;
 	config.etc1_supported = false;
 	config.support_npot_repeat_mipmap = true;
+	config.depth_internalformat = GL_DEPTH_COMPONENT;
+	config.depth_type = GL_UNSIGNED_INT;
+
 #else
 	config.float_texture_supported = config.extensions.has("GL_ARB_texture_float") || config.extensions.has("GL_OES_texture_float");
 	config.s3tc_supported = config.extensions.has("GL_EXT_texture_compression_s3tc") || config.extensions.has("WEBGL_compressed_texture_s3tc");
@@ -4981,6 +4986,14 @@ void RasterizerStorageGLES2::initialize() {
 	config.pvrtc_supported = config.extensions.has("IMG_texture_compression_pvrtc");
 	config.support_npot_repeat_mipmap = config.extensions.has("GL_OES_texture_npot");
 
+	if (config.extensions.has("GL_OES_depth24")) {
+		config.depth_internalformat = _DEPTH_COMPONENT24_OES;
+		config.depth_type = GL_UNSIGNED_INT;
+	} else {
+		config.depth_internalformat = GL_DEPTH_COMPONENT16;
+		config.depth_type = GL_UNSIGNED_SHORT;
+	}
+
 #endif
 #ifdef GLES_OVER_GL
 	config.use_rgba_2d_shadows = false;

drivers/gles2/rasterizer_storage_gles2.h

@@ -85,6 +85,9 @@ public:
 		bool support_write_depth;
 		bool support_half_float_vertices;
 		bool support_npot_repeat_mipmap;
+
+		GLuint depth_internalformat;
+		GLuint depth_type;
 	} config;
 
 	struct Resources {