drivers/dri: cleanup dri extension instantiation

Uniformly use the typecasted extension name, constify extension instances
and use designated initialisers. Set the implemented version of the
extension, over the one defined in dri_infertace.h. Patch covers the
following extensions:

__DRItexBufferExtension
__DRIimageExtension
__DRIrobustnessExtension
__DRI2rendererQueryExtension
__DRIdri2LoaderExtension

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

6 files changed, 37 insertions, 28 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_screen.c b/src/mesa/drivers/dri/i915/intel_screen.c
index 384cb46..9b4e490 100644
--- a/src/mesa/drivers/dri/i915/intel_screen.c
+++ b/src/mesa/drivers/dri/i915/intel_screen.c
@@ -142,7 +142,7 @@ aub_dump_bmp(struct gl_context *ctx)
 }
 
 static const __DRItexBufferExtension intelTexBufferExtension = {
-   .base = { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
+   .base = { __DRI_TEX_BUFFER, 3 },
 
    .setTexBuffer        = intelSetTexBuffer,
    .setTexBuffer2       = intelSetTexBuffer2,
@@ -685,7 +685,7 @@ intel_from_planar(__DRIimage *parent, int plane, void *loaderPrivate)
     return image;
 }
 
-static struct __DRIimageExtensionRec intelImageExtension = {
+static const __DRIimageExtension intelImageExtension = {
     .base = { __DRI_IMAGE, 7 },
 
     .createImageFromName                = intel_create_image_from_name,
@@ -778,7 +778,7 @@ i915_query_renderer_string(__DRIscreen *psp, int param, const char **value)
    return -1;
 }
 
-static struct __DRI2rendererQueryExtensionRec intelRendererQueryExtension = {
+static const __DRI2rendererQueryExtension intelRendererQueryExtension = {
    .base = { __DRI2_RENDERER_QUERY, 1 },
 
    .queryInteger = i915_query_renderer_integer,
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index 8cb1260..3b2e4e9 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -154,7 +154,7 @@ aub_dump_bmp(struct gl_context *ctx)
 }
 
 static const __DRItexBufferExtension intelTexBufferExtension = {
-   .base = { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
+   .base = { __DRI_TEX_BUFFER, 3 },
 
    .setTexBuffer        = intelSetTexBuffer,
    .setTexBuffer2       = intelSetTexBuffer2,
@@ -796,7 +796,7 @@ intel_from_planar(__DRIimage *parent, int plane, void *loaderPrivate)
     return image;
 }
 
-static struct __DRIimageExtensionRec intelImageExtension = {
+static const __DRIimageExtension intelImageExtension = {
     .base = { __DRI_IMAGE, 8 },
 
     .createImageFromName                = intel_create_image_from_name,
@@ -891,15 +891,15 @@ brw_query_renderer_string(__DRIscreen *psp, int param, const char **value)
    return -1;
 }
 
-static struct __DRI2rendererQueryExtensionRec intelRendererQueryExtension = {
+static const __DRI2rendererQueryExtension intelRendererQueryExtension = {
    .base = { __DRI2_RENDERER_QUERY, 1 },
 
    .queryInteger = brw_query_renderer_integer,
    .queryString = brw_query_renderer_string
 };
 
-static const struct __DRIrobustnessExtensionRec dri2Robustness = {
-   { __DRI2_ROBUSTNESS, 1 }
+static const __DRIrobustnessExtension dri2Robustness = {
+   .base = { __DRI2_ROBUSTNESS, 1 }
 };
 
 static const __DRIextension *intelScreenExtensions[] = {
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_driver.c b/src/mesa/drivers/dri/nouveau/nouveau_driver.c
index 809b5ff..1a8afa2 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_driver.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_driver.c
@@ -65,7 +65,7 @@ nouveau_flush(struct gl_context *ctx)
 	if (_mesa_is_winsys_fbo(ctx->DrawBuffer) &&
 	    ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
 		__DRIscreen *screen = nctx->screen->dri_screen;
-		__DRIdri2LoaderExtension *dri2 = screen->dri2.loader;
+		const __DRIdri2LoaderExtension *dri2 = screen->dri2.loader;
 		__DRIdrawable *drawable = nctx->dri_context->driDrawablePriv;
 
 		if (drawable && drawable->loaderPrivate)
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_screen.c b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
index 9929056..aec2f72 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_screen.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
@@ -234,9 +234,11 @@ static const struct __DRI2flushExtensionRec nouveau_flush_extension = {
 };
 
 static const struct __DRItexBufferExtensionRec nouveau_texbuffer_extension = {
-    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
-    NULL,
-    nouveau_set_texbuffer,
+   .base = { __DRI_TEX_BUFFER, 3 },
+
+   .setTexBuffer        = NULL,
+   .setTexBuffer2       = nouveau_set_texbuffer,
+   .releaseTexBuffer    = NULL,
 };
 
 static const __DRIextension *nouveau_screen_extensions[] = {
diff --git a/src/mesa/drivers/dri/radeon/radeon_screen.c b/src/mesa/drivers/dri/radeon/radeon_screen.c
index 90251db..dd94038 100644
--- a/src/mesa/drivers/dri/radeon/radeon_screen.c
+++ b/src/mesa/drivers/dri/radeon/radeon_screen.c
@@ -170,15 +170,19 @@ radeonGetParam(__DRIscreen *sPriv, int param, void *value)
 
 #if defined(RADEON_R100)
 static const __DRItexBufferExtension radeonTexBufferExtension = {
-    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
-   radeonSetTexBuffer,
-   radeonSetTexBuffer2,
+   .base = { __DRI_TEX_BUFFER, 3 },
+
+   .setTexBuffer        = radeonSetTexBuffer,
+   .setTexBuffer2       = radeonSetTexBuffer2,
+   .releaseTexBuffer    = NULL,
 };
 #elif defined(RADEON_R200)
 static const __DRItexBufferExtension r200TexBufferExtension = {
-    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
-   r200SetTexBuffer,
-   r200SetTexBuffer2,
+   .base = { __DRI_TEX_BUFFER, 3 },
+
+   .setTexBuffer        = r200SetTexBuffer,
+   .setTexBuffer2       = r200SetTexBuffer2,
+   .releaseTexBuffer    = NULL,
 };
 #endif
 
@@ -373,13 +377,14 @@ radeon_query_image(__DRIimage *image, int attrib, int *value)
    }
 }
 
-static struct __DRIimageExtensionRec radeonImageExtension = {
-    { __DRI_IMAGE, 1 },
-   radeon_create_image_from_name,
-   radeon_create_image_from_renderbuffer,
-   radeon_destroy_image,
-   radeon_create_image,
-   radeon_query_image
+static const __DRIimageExtension radeonImageExtension = {
+   .base = { __DRI_IMAGE, 1 },
+
+   .createImageFromName         = radeon_create_image_from_name,
+   .createImageFromRenderbuffer = radeon_create_image_from_renderbuffer,
+   .destroyImage                = radeon_destroy_image,
+   .createImage                 = radeon_create_image,
+   .queryImage                  = radeon_query_image
 };
 
 static int radeon_set_screen_flags(radeonScreenPtr screen, int device_id)
diff --git a/src/mesa/drivers/dri/swrast/swrast.c b/src/mesa/drivers/dri/swrast/swrast.c
index 071192c..8881381 100644
--- a/src/mesa/drivers/dri/swrast/swrast.c
+++ b/src/mesa/drivers/dri/swrast/swrast.c
@@ -110,9 +110,11 @@ static void swrastSetTexBuffer(__DRIcontext *pDRICtx, GLint target,
 }
 
 static const __DRItexBufferExtension swrastTexBufferExtension = {
-    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
-    swrastSetTexBuffer,
-    swrastSetTexBuffer2,
+   .base = { __DRI_TEX_BUFFER, 3 },
+
+   .setTexBuffer        = swrastSetTexBuffer,
+   .setTexBuffer2       = swrastSetTexBuffer2,
+   .releaseTexBuffer    = NULL,
 };
 
 static const __DRIextension *dri_screen_extensions[] = {