Fixed creation of GLES3 textures with compute write flag.

src/bgfx.cpp

@@ -206,7 +206,16 @@ namespace bgfx
 
 	void setPlatformData(const PlatformData& _pd)
 	{
-		BGFX_FATAL(NULL == s_ctx, Fatal::UnableToInitialize, "Must be set prior to initialization!");
+		if (NULL != s_ctx)
+		{
+			BGFX_FATAL(true
+				&& g_platformData.ndt     == _pd.ndt
+				&& g_platformData.nwh     == _pd.nwh
+				&& g_platformData.context == _pd.context
+				, Fatal::UnableToInitialize
+				, "Only backbuffer pointer can be changed after initialization!"
+				);
+		}
 		memcpy(&g_platformData, &_pd, sizeof(PlatformData) );
 	}
 

src/bgfx_compute.sh

@@ -100,6 +100,13 @@ ivec2 imageSize(Texture2D _image)
 	return result;
 }
 
+ivec2 imageSize(Texture2D<uint> _image)
+{
+	ivec2 result;
+	_image.GetDimensions(result.x, result.y);
+	return result;
+}
+
 ivec2 imageSize(RWTexture2D<float4> _image)
 {
 	ivec2 result;

src/glcontext_egl.cpp

@@ -14,14 +14,6 @@
 #			include <bcm_host.h>
 #		endif // BX_PLATFORM_RPI
 
-#ifndef EGL_CONTEXT_MAJOR_VERSION_KHR
-#	define EGL_CONTEXT_MAJOR_VERSION_KHR EGL_CONTEXT_CLIENT_VERSION
-#endif // EGL_CONTEXT_MAJOR_VERSION_KHR
-
-#ifndef EGL_CONTEXT_MINOR_VERSION_KHR
-#	define EGL_CONTEXT_MINOR_VERSION_KHR 0x30FB
-#endif // EGL_CONTEXT_MINOR_VERSION_KHR
-
 namespace bgfx { namespace gl
 {
 #if BGFX_USE_GL_DYNAMIC_LIB
@@ -100,22 +92,7 @@ EGL_IMPORT
 #	define GL_IMPORT(_optional, _proto, _func, _import) _proto _func = NULL
 #	include "glimports.h"
 
-	static const EGLint s_contextAttrs[] =
-	{
-#	if BGFX_CONFIG_RENDERER_OPENGLES >= 30
-		EGL_CONTEXT_MAJOR_VERSION_KHR, 3,
-#		if BGFX_CONFIG_RENDERER_OPENGLES >= 31
-		EGL_CONTEXT_MINOR_VERSION_KHR, 1,
-#		else
-		//			EGL_CONTEXT_MINOR_VERSION_KHR, 0,
-#		endif // BGFX_CONFIG_RENDERER_OPENGLES >= 31
-#	elif BGFX_CONFIG_RENDERER_OPENGLES
-		EGL_CONTEXT_MAJOR_VERSION_KHR, 2,
-		//			EGL_CONTEXT_MINOR_VERSION_KHR, 0,
-#	endif // BGFX_CONFIG_RENDERER_
-
-		EGL_NONE
-	};
+	static EGLint s_contextAttrs[16];
 
 	struct SwapChainGL
 	{
@@ -253,6 +230,27 @@ EGL_IMPORT
 			m_surface = eglCreateWindowSurface(m_display, m_config, nwh, NULL);
 			BGFX_FATAL(m_surface != EGL_NO_SURFACE, Fatal::UnableToInitialize, "Failed to create surface.");
 
+			{
+				bx::StaticMemoryBlockWriter writer(s_contextAttrs, sizeof(s_contextAttrs) );
+
+				bx::write(&writer, EGLint(EGL_CONTEXT_MAJOR_VERSION_KHR) );
+				bx::write(&writer, EGLint(BGFX_CONFIG_RENDERER_OPENGLES / 10) );
+
+				bx::write(&writer, EGLint(EGL_CONTEXT_MINOR_VERSION_KHR) );
+				bx::write(&writer, EGLint(BGFX_CONFIG_RENDERER_OPENGLES % 10) );
+
+				bx::write(&writer, EGLint(EGL_CONTEXT_FLAGS_KHR) );
+
+				EGLint flags = BGFX_CONFIG_DEBUG ? 0
+					| EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR
+//					| EGL_OPENGL_ES3_BIT_KHR
+					: 0
+					;
+				bx::write(&writer, flags);
+
+				bx::write(&writer, EGLint(EGL_NONE) );
+			}
+
 			m_context = eglCreateContext(m_display, m_config, EGL_NO_CONTEXT, s_contextAttrs);
 			BGFX_FATAL(m_context != EGL_NO_CONTEXT, Fatal::UnableToInitialize, "Failed to create context.");
 

src/glcontext_egl.h

@@ -9,6 +9,7 @@
 #if BGFX_USE_EGL
 
 #include <EGL/egl.h>
+#include <EGL/eglext.h>
 
 namespace bgfx { namespace gl
 {

src/renderer_d3d11.cpp

@@ -1579,7 +1579,12 @@ BX_PRAGMA_DIAGNOSTIC_POP();
 
 				preReset();
 
-				if (NULL != m_swapChain)
+				if (NULL == m_swapChain)
+				{
+					// Updated backbuffer if it changed in PlatformData.
+					m_backBufferColor = (ID3D11RenderTargetView*)g_platformData.backbuffer;
+				}
+				else
 				{
 					if (resize)
 					{

src/renderer_gl.cpp

@@ -214,8 +214,8 @@ namespace bgfx { namespace gl
 		{ GL_RG16F,                                    GL_RG,                                       GL_FLOAT,                        false }, // RG16F
 		{ GL_RG32UI,                                   GL_RG,                                       GL_UNSIGNED_INT,                 false }, // RG32
 		{ GL_RG32F,                                    GL_RG,                                       GL_FLOAT,                        false }, // RG32F
-		{ GL_RGBA,                                     GL_BGRA,                                     GL_UNSIGNED_BYTE,                false }, // BGRA8
-		{ GL_RGBA,                                     GL_RGBA,                                     GL_UNSIGNED_BYTE,                false }, // RGBA8
+		{ GL_RGBA8,                                    GL_BGRA,                                     GL_UNSIGNED_BYTE,                false }, // BGRA8
+		{ GL_RGBA8,                                    GL_RGBA,                                     GL_UNSIGNED_BYTE,                false }, // RGBA8
 		{ GL_RGBA16,                                   GL_RGBA,                                     GL_UNSIGNED_BYTE,                false }, // RGBA16
 		{ GL_RGBA16F,                                  GL_RGBA,                                     GL_HALF_FLOAT,                   false }, // RGBA16F
 		{ GL_RGBA32UI,                                 GL_RGBA,                                     GL_UNSIGNED_INT,                 false }, // RGBA32
@@ -1511,14 +1511,20 @@ namespace bgfx { namespace gl
 			if (s_extension[Extension::ARB_debug_output].m_supported
 			||  s_extension[Extension::KHR_debug].m_supported)
 			{
-				GL_CHECK(glDebugMessageCallback(debugProcCb, NULL) );
-				GL_CHECK(glDebugMessageControl(GL_DONT_CARE
-						, GL_DONT_CARE
-						, GL_DEBUG_SEVERITY_MEDIUM
-						, 0
-						, NULL
-						, GL_TRUE
-						) );
+				if (NULL != glDebugMessageControl
+				&&  NULL != glDebugMessageInsert
+				&&  NULL != glDebugMessageCallback
+				&&  NULL != glGetDebugMessageLog)
+				{
+					GL_CHECK(glDebugMessageCallback(debugProcCb, NULL) );
+					GL_CHECK(glDebugMessageControl(GL_DONT_CARE
+							, GL_DONT_CARE
+							, GL_DEBUG_SEVERITY_MEDIUM
+							, 0
+							, NULL
+							, GL_TRUE
+							) );
+				}
 			}
 
 			if (s_extension[Extension::ARB_seamless_cube_map].m_supported)
@@ -3356,7 +3362,8 @@ namespace bgfx { namespace gl
 		m_requestedFormat = _format;
 		m_textureFormat   = _format;
 
-		const bool bufferOnly = 0 != (m_flags&BGFX_TEXTURE_RT_BUFFER_ONLY);
+		const bool bufferOnly   = 0 != (m_flags&BGFX_TEXTURE_RT_BUFFER_ONLY);
+		const bool computeWrite = 0 != (m_flags&BGFX_TEXTURE_COMPUTE_WRITE );
 
 		if (!bufferOnly)
 		{
@@ -3377,6 +3384,7 @@ namespace bgfx { namespace gl
 			const bool convert    = false
 				|| (compressed && m_textureFormat != m_requestedFormat)
 				|| swizzle
+				|| !s_textureFormat[m_requestedFormat].m_supported
 				;
 
 			if (convert)
@@ -3387,6 +3395,11 @@ namespace bgfx { namespace gl
 				m_type = tfiRgba8.m_type;
 			}
 
+			if (computeWrite)
+			{
+				GL_CHECK(glTexStorage2D(_target, _numMips, s_textureFormat[m_textureFormat].m_internalFmt, m_width, m_height));
+			}
+
 			setSamplerState(_flags);
 
 			if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
@@ -3480,6 +3493,8 @@ namespace bgfx { namespace gl
 				return;
 			}
 
+			const bool computeWrite = 0 != (m_flags&BGFX_TEXTURE_COMPUTE_WRITE);
+
 			target = GL_TEXTURE_CUBE_MAP == m_target ? GL_TEXTURE_CUBE_MAP_POSITIVE_X : m_target;
 
 			const GLenum internalFmt = s_textureFormat[m_textureFormat].m_internalFmt;
@@ -3579,7 +3594,7 @@ namespace bgfx { namespace gl
 								);
 						}
 					}
-					else
+					else if (!computeWrite)
 					{
 						if (compressed)
 						{