[Mesa-dev] [v7 5/9] dri: propagate extra dma_buf import attributes to the drivers
Topi Pohjolainen
topi.pohjolainen at intel.com
Wed Jul 10 01:24:47 PDT 2013
v2:
- do not break ABI, but instead introduce new entry point for
dma buffers and bump up the dri-interface version to eight
v3 (Chad):
- allow the hook to specify an error originating from the
driver. For now only unsupported format is considered. I
thought about rejecting the hints also as they are addressing
only YUV sampling which is not supported at the moment but
then thought against it as the spec is not saying one way or
the other.
v4 (Eric, Chad):
- restrict to rgb formatted only
v5:
- rebased on top of i915/i965 split
Signed-off-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
---
include/GL/internal/dri_interface.h | 37 +++++++++++++++++++++++-
src/mesa/drivers/dri/i965/intel_regions.h | 7 +++++
src/mesa/drivers/dri/i965/intel_screen.c | 48 +++++++++++++++++++++++++++++--
3 files changed, 89 insertions(+), 3 deletions(-)
diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h
index 30ce175..fbcc6c8 100644
--- a/include/GL/internal/dri_interface.h
+++ b/include/GL/internal/dri_interface.h
@@ -938,7 +938,7 @@ struct __DRIdri2ExtensionRec {
* extensions.
*/
#define __DRI_IMAGE "DRI_IMAGE"
-#define __DRI_IMAGE_VERSION 7
+#define __DRI_IMAGE_VERSION 8
/**
* These formats correspond to the similarly named MESA_FORMAT_*
@@ -1025,6 +1025,25 @@ struct __DRIdri2ExtensionRec {
* 7+. Each query will return a
* new fd. */
+enum __DRIYUVColorSpace {
+ __DRI_YUV_COLOR_SPACE_UNDEFINED = 0,
+ __DRI_YUV_COLOR_SPACE_ITU_REC601 = 0x327F,
+ __DRI_YUV_COLOR_SPACE_ITU_REC709 = 0x3280,
+ __DRI_YUV_COLOR_SPACE_ITU_REC2020 = 0x3281
+};
+
+enum __DRISampleRange {
+ __DRI_YUV_RANGE_UNDEFINED = 0,
+ __DRI_YUV_FULL_RANGE = 0x3282,
+ __DRI_YUV_NARROW_RANGE = 0x3283
+};
+
+enum __DRIChromaSiting {
+ __DRI_YUV_CHROMA_SITING_UNDEFINED = 0,
+ __DRI_YUV_CHROMA_SITING_0 = 0x3284,
+ __DRI_YUV_CHROMA_SITING_0_5 = 0x3285
+};
+
/**
* \name Reasons that __DRIimageExtensionRec::createImageFromTexture might fail
*/
@@ -1130,6 +1149,22 @@ struct __DRIimageExtensionRec {
int *fds, int num_fds,
int *strides, int *offsets,
void *loaderPrivate);
+
+ /**
+ * Like createImageFromFds, but takes additional attributes.
+ *
+ * \since 8
+ */
+ __DRIimage *(*createImageFromDmaBufs)(__DRIscreen *screen,
+ int width, int height, int fourcc,
+ int *fds, int num_fds,
+ int *strides, int *offsets,
+ enum __DRIYUVColorSpace color_space,
+ enum __DRISampleRange sample_range,
+ enum __DRIChromaSiting horiz_siting,
+ enum __DRIChromaSiting vert_siting,
+ unsigned *error,
+ void *loaderPrivate);
};
diff --git a/src/mesa/drivers/dri/i965/intel_regions.h b/src/mesa/drivers/dri/i965/intel_regions.h
index 428f4dc..385d4b2 100644
--- a/src/mesa/drivers/dri/i965/intel_regions.h
+++ b/src/mesa/drivers/dri/i965/intel_regions.h
@@ -40,6 +40,7 @@
#include "main/mtypes.h"
#include "intel_bufmgr.h"
+#include <GL/internal/dri_interface.h>
#ifdef __cplusplus
extern "C" {
@@ -149,6 +150,12 @@ struct __DRIimageRec {
GLuint tile_y;
bool has_depthstencil;
+ /* Provided by dma_buf import extension */
+ enum __DRIYUVColorSpace yuv_color_space;
+ enum __DRISampleRange sample_range;
+ enum __DRIChromaSiting horizontal_siting;
+ enum __DRIChromaSiting vertical_siting;
+
void *data;
};
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index 56549e4..2cec04f 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -684,6 +684,49 @@ intel_create_image_from_fds(__DRIscreen *screen,
return image;
}
+static __DRIimage *
+intel_create_image_from_dma_bufs(__DRIscreen *screen,
+ int width, int height, int fourcc,
+ int *fds, int num_fds,
+ int *strides, int *offsets,
+ enum __DRIYUVColorSpace yuv_color_space,
+ enum __DRISampleRange sample_range,
+ enum __DRIChromaSiting horizontal_siting,
+ enum __DRIChromaSiting vertical_siting,
+ unsigned *error,
+ void *loaderPrivate)
+{
+ __DRIimage *image;
+ struct intel_image_format *f = intel_image_format_lookup(fourcc);
+
+ /* For now only packed formats that have native sampling are supported. */
+ if (!f || f->nplanes != 1) {
+ *error = __DRI_IMAGE_ERROR_BAD_MATCH;
+ return NULL;
+ }
+
+ image = intel_create_image_from_fds(screen, width, height, fourcc, fds,
+ num_fds, strides, offsets,
+ loaderPrivate);
+
+ /*
+ * Invalid parameters and any inconsistencies between are assumed to be
+ * checked by the caller. Therefore besides unsupported formats one can fail
+ * only in allocation.
+ */
+ if (!image) {
+ *error = __DRI_IMAGE_ERROR_BAD_ALLOC;
+ return NULL;
+ }
+
+ image->yuv_color_space = yuv_color_space;
+ image->sample_range = sample_range;
+ image->horizontal_siting = horizontal_siting;
+ image->vertical_siting = vertical_siting;
+
+ *error = __DRI_IMAGE_ERROR_SUCCESS;
+ return image;
+}
static __DRIimage *
intel_from_planar(__DRIimage *parent, int plane, void *loaderPrivate)
@@ -744,7 +787,7 @@ intel_from_planar(__DRIimage *parent, int plane, void *loaderPrivate)
}
static struct __DRIimageExtensionRec intelImageExtension = {
- .base = { __DRI_IMAGE, 7 },
+ .base = { __DRI_IMAGE, 8 },
.createImageFromName = intel_create_image_from_name,
.createImageFromRenderbuffer = intel_create_image_from_renderbuffer,
@@ -756,7 +799,8 @@ static struct __DRIimageExtensionRec intelImageExtension = {
.createImageFromNames = intel_create_image_from_names,
.fromPlanar = intel_from_planar,
.createImageFromTexture = intel_create_image_from_texture,
- .createImageFromFds = intel_create_image_from_fds
+ .createImageFromFds = intel_create_image_from_fds,
+ .createImageFromDmaBufs = intel_create_image_from_dma_bufs
};
static const __DRIextension *intelScreenExtensions[] = {
--
1.8.1.2
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