From 44be9c9d5950d3b2ba4d5527189abec8dac0686f Mon Sep 17 00:00:00 2001
From: David Airlie <airlied@asimov.stargames.com.au>
Date: Wed, 11 Apr 2007 13:19:30 +1000
Subject: add an fb count + id get to the get resources code path

---
 libdrm/xf86drmMode.c | 25 +++++++++++--------------
 libdrm/xf86drmMode.h | 15 ++++++++-------
 2 files changed, 19 insertions(+), 21 deletions(-)

(limited to 'libdrm')

diff --git a/libdrm/xf86drmMode.c b/libdrm/xf86drmMode.c
index c0444e65..7f0252ce 100644
--- a/libdrm/xf86drmMode.c
+++ b/libdrm/xf86drmMode.c
@@ -144,14 +144,13 @@ drmModeResPtr drmModeGetResources(int fd)
 	int i;
 	drmModeResPtr r = 0;
 
-	res.count_crtcs   = 0;
-	res.count_outputs = 0;
-	res.count_modes   = 0;
-	res.modes         = 0;
+	memset(&res, 0, sizeof(struct drm_mode_card_res));
 
 	if (ioctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
 		return 0;
 
+	if (res.count_fbs)
+		res.fb_id = drmMalloc(res.count_fbs*sizeof(uint32_t));
 	if (res.count_crtcs)
 		res.crtc_id = drmMalloc(res.count_crtcs*sizeof(uint32_t));
 	if (res.count_outputs)
@@ -159,8 +158,10 @@ drmModeResPtr drmModeGetResources(int fd)
 	if (res.count_modes)
 		res.modes = drmMalloc(res.count_modes*sizeof(*res.modes));
 
-	if (ioctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
+	if (ioctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) {
+		r = NULL;
 		goto err_allocs;
+	}
 
 	/*
 	 * return
@@ -170,27 +171,23 @@ drmModeResPtr drmModeGetResources(int fd)
 	if (!(r = drmMalloc(sizeof(*r))))
 		return 0;
 
-	r->frameBufferId = res.fb_id;
+	r->count_fbs     = res.count_fbs;
 	r->count_crtcs   = res.count_crtcs;
 	r->count_outputs = res.count_outputs;
 	r->count_modes   = res.count_modes;
 	/* TODO we realy should test if these allocs fails. */
+	r->fbs           = drmAllocCpy(res.fb_id, res.count_fbs, sizeof(uint32_t));
 	r->crtcs         = drmAllocCpy(res.crtc_id, res.count_crtcs, sizeof(uint32_t));
 	r->outputs       = drmAllocCpy(res.output_id, res.count_outputs, sizeof(uint32_t));
 	r->modes         = drmAllocCpy(res.modes, res.count_modes, sizeof(struct drm_mode_modeinfo));
 
-	drmFree(res.crtc_id);
-	drmFree(res.output_id);
-	drmFree(res.modes);
-
-	return r;
-
 err_allocs:
+	drmFree(res.fb_id);
 	drmFree(res.crtc_id);
 	drmFree(res.output_id);
 	drmFree(res.modes);
 
-	return 0;
+	return r;
 }
 
 int drmModeAddFB(int fd, uint32_t width, uint32_t height,
@@ -214,7 +211,7 @@ int drmModeAddFB(int fd, uint32_t width, uint32_t height,
 
 int drmModeRmFB(int fd, uint32_t bufferId)
 {
-        return ioctl(fd, DRM_IOCTL_MODE_RMFB, bufferId);
+	return ioctl(fd, DRM_IOCTL_MODE_RMFB, bufferId);
 }
 
 #if 0
diff --git a/libdrm/xf86drmMode.h b/libdrm/xf86drmMode.h
index 594eb487..4ca9e407 100644
--- a/libdrm/xf86drmMode.h
+++ b/libdrm/xf86drmMode.h
@@ -62,7 +62,8 @@ typedef struct _drmModeGammaTriple {
 
 typedef struct _drmModeRes {
 
-	uint32_t frameBufferId;
+	int count_fbs;
+	uint32_t *fbs;
 
 	int count_crtcs;
 	uint32_t *crtcs;
@@ -77,10 +78,10 @@ typedef struct _drmModeRes {
 
 typedef struct _drmModeFrameBuffer {
 
-        uint32_t width;
-        uint32_t height;
-        uint32_t pitch;
-        uint8_t bpp;
+	uint32_t width;
+	uint32_t height;
+	uint32_t pitch;
+	uint8_t bpp;
 
 } drmModeFrameBuffer, *drmModeFrameBufferPtr;
 
@@ -208,14 +209,14 @@ extern int drmModeForceProbe(int fd, uint32_t outputId);
 /**
  * Retrive information about framebuffer bufferId
  */
-extern drmModeFrameBufferPtr drmModeGetFramebuffer(int fd,
+extern drmModeFrameBufferPtr drmModeGetFB(int fd,
 		uint32_t bufferId);
 
 /**
  * Creates a new framebuffer with an buffer object as its scanout buffer.
  */
 extern int drmModeAddFB(int fd, uint32_t width, uint32_t height,
-                        uint8_t bpp, uint32_t pitch, drmBO *bo, uint32_t *buf_id);
+			uint8_t bpp, uint32_t pitch, drmBO *bo, uint32_t *buf_id);
 /**
  * Destroies the given framebuffer.
  */
-- 
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