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lib/igt_fb: igt_create_fb_with_bo_size

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Useful for testing bigger/smaller fb-wrapped buffer objects.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
This commit is contained in:
Oscar Mateo 2014-05-16 14:07:11 +01:00 committed by Ville Syrjälä
parent ace8a9e10c
commit 5bdd4d9b5e
2 changed files with 41 additions and 7 deletions
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45
lib/igt_fb.c
View File

@ -76,7 +76,8 @@ static struct format_desc_struct {
/* helpers to create nice-looking framebuffers */ /* helpers to create nice-looking framebuffers */
static int create_bo_for_fb(int fd, int width, int height, int bpp, static int create_bo_for_fb(int fd, int width, int height, int bpp,
bool tiled, uint32_t *gem_handle_ret, bool tiled, uint32_t *gem_handle_ret,
unsigned *size_ret, unsigned *stride_ret) unsigned *size_ret, unsigned *stride_ret,
unsigned bo_size)
{ {
uint32_t gem_handle; uint32_t gem_handle;
int size, ret = 0; int size, ret = 0;
@ -106,7 +107,9 @@ static int create_bo_for_fb(int fd, int width, int height, int bpp,
size = stride * height; size = stride * height;
} }
gem_handle = gem_create(fd, size); if (bo_size == 0)
bo_size = size;
gem_handle = gem_create(fd, bo_size);
if (tiled) if (tiled)
ret = __gem_set_tiling(fd, gem_handle, I915_TILING_X, stride); ret = __gem_set_tiling(fd, gem_handle, I915_TILING_X, stride);
@ -376,17 +379,18 @@ void igt_paint_image(cairo_t *cr, const char *filename,
} }
/** /**
* igt_create_fb: * igt_create_fb_with_bo_size:
* @fd: open i915 drm file descriptor * @fd: open i915 drm file descriptor
* @width: width of the framebuffer in pixel * @width: width of the framebuffer in pixel
* @height: height of the framebuffer in pixel * @height: height of the framebuffer in pixel
* @format: drm fourcc pixel format code * @format: drm fourcc pixel format code
* @tiled: X-tiled or linear framebuffer * @tiled: X-tiled or linear framebuffer
* @fb: pointer to an #igt_fb structure * @fb: pointer to an #igt_fb structure
* @bo_size: size of the backing bo (0 for minimum needed size)
* *
* This function allocates a gem buffer object suitable to back a framebuffer * This function allocates a gem buffer object suitable to back a framebuffer
* with the requested properties and then wraps it up in a drm framebuffer * with the requested properties and then wraps it up in a drm framebuffer
* object. All metadata is stored in @fb. * object of the requested size. All metadata is stored in @fb.
* *
* The backing storage of the framebuffer is filled with all zeros, i.e. black * The backing storage of the framebuffer is filled with all zeros, i.e. black
* for rgb pixel formats. * for rgb pixel formats.
@ -395,8 +399,9 @@ void igt_paint_image(cairo_t *cr, const char *filename,
* The kms id of the created framebuffer on success or a negative error code on * The kms id of the created framebuffer on success or a negative error code on
* failure. * failure.
*/ */
unsigned int igt_create_fb(int fd, int width, int height, uint32_t format, unsigned int igt_create_fb_with_bo_size(int fd, int width, int height,
bool tiled, struct igt_fb *fb) uint32_t format, bool tiled,
struct igt_fb *fb, unsigned bo_size)
{ {
uint32_t handles[4]; uint32_t handles[4];
uint32_t pitches[4]; uint32_t pitches[4];
@ -409,7 +414,7 @@ unsigned int igt_create_fb(int fd, int width, int height, uint32_t format,
bpp = igt_drm_format_to_bpp(format); bpp = igt_drm_format_to_bpp(format);
ret = create_bo_for_fb(fd, width, height, bpp, tiled, &fb->gem_handle, ret = create_bo_for_fb(fd, width, height, bpp, tiled, &fb->gem_handle,
&fb->size, &fb->stride); &fb->size, &fb->stride, bo_size);
if (ret < 0) if (ret < 0)
return ret; return ret;
@ -434,6 +439,32 @@ unsigned int igt_create_fb(int fd, int width, int height, uint32_t format,
return fb_id; return fb_id;
} }
/**
* igt_create_fb:
* @fd: open i915 drm file descriptor
* @width: width of the framebuffer in pixel
* @height: height of the framebuffer in pixel
* @format: drm fourcc pixel format code
* @tiled: X-tiled or linear framebuffer
* @fb: pointer to an #igt_fb structure
*
* This function allocates a gem buffer object suitable to back a framebuffer
* with the requested properties and then wraps it up in a drm framebuffer
* object. All metadata is stored in @fb.
*
* The backing storage of the framebuffer is filled with all zeros, i.e. black
* for rgb pixel formats.
*
* Returns:
* The kms id of the created framebuffer on success or a negative error code on
* failure.
*/
unsigned int igt_create_fb(int fd, int width, int height, uint32_t format,
bool tiled, struct igt_fb *fb)
{
return igt_create_fb_with_bo_size(fd, width, height, format, tiled, fb, 0);
}
/** /**
* igt_create_color_fb: * igt_create_color_fb:
* @fd: open i915 drm file descriptor * @fd: open i915 drm file descriptor

3
lib/igt_fb.h
View File

@ -62,6 +62,9 @@ enum igt_text_align {
align_hcenter = 0x08, align_hcenter = 0x08,
}; };
unsigned int igt_create_fb_with_bo_size(int fd, int width, int height,
uint32_t format, bool tiled,
struct igt_fb *fb, unsigned bo_size);
unsigned int igt_create_fb(int fd, int width, int height, uint32_t format, unsigned int igt_create_fb(int fd, int width, int height, uint32_t format,
bool tiled, struct igt_fb *fb); bool tiled, struct igt_fb *fb);
unsigned int igt_create_color_fb(int fd, int width, int height, unsigned int igt_create_color_fb(int fd, int width, int height,