void image_clear(struct vg_image *img,
VGint x, VGint y, VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
VGfloat *clear_colorf = ctx->state.vg.clear_color;
VGubyte r, g, b ,a;
VGint clear_colori;
/* FIXME: this is very nasty */
r = float_to_ubyte(clear_colorf[0]);
g = float_to_ubyte(clear_colorf[1]);
b = float_to_ubyte(clear_colorf[2]);
a = float_to_ubyte(clear_colorf[3]);
clear_colori = r << 24 | g << 16 | b << 8 | a;
image_cleari(img, clear_colori, x, y, width, height);
}
struct vg_image * image_create(VGImageFormat format,
VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
struct vg_image *image = CALLOC_STRUCT(vg_image);
enum pipe_format pformat = vg_format_to_pipe(format);
struct pipe_texture pt, *newtex;
struct pipe_screen *screen = ctx->pipe->screen;
vg_init_object(&image->base, ctx, VG_OBJECT_IMAGE);
image->format = format;
image->width = width;
image->height = height;
image->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
image->sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
image->sampler.normalized_coords = 1;
assert(screen->is_format_supported(screen, pformat, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0));
memset(&pt, 0, sizeof(pt));
pt.target = PIPE_TEXTURE_2D;
pt.format = pformat;
pt.last_level = 0;
pt.width0 = width;
pt.height0 = height;
pt.depth0 = 1;
pt.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
newtex = screen->texture_create(screen, &pt);
debug_assert(newtex);
image->texture = newtex;
vg_context_add_object(ctx, VG_OBJECT_IMAGE, image);
image_cleari(image, 0, 0, 0, image->width, image->height);
return image;
}
struct vg_image * image_create(VGImageFormat format,
VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
struct pipe_context *pipe = ctx->pipe;
struct vg_image *image = CALLOC_STRUCT(vg_image);
enum pipe_format pformat = vg_format_to_pipe(format);
struct pipe_resource pt, *newtex;
struct pipe_sampler_view view_templ;
struct pipe_sampler_view *view;
struct pipe_screen *screen = ctx->pipe->screen;
vg_init_object(&image->base, ctx, VG_OBJECT_IMAGE);
image->format = format;
image->width = width;
image->height = height;
image->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
image->sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
image->sampler.normalized_coords = 1;
assert(screen->is_format_supported(screen, pformat, PIPE_TEXTURE_2D,
0, PIPE_BIND_SAMPLER_VIEW));
memset(&pt, 0, sizeof(pt));
pt.target = PIPE_TEXTURE_2D;
pt.format = pformat;
pt.last_level = 0;
pt.width0 = width;
pt.height0 = height;
pt.depth0 = 1;
pt.array_size = 1;
pt.bind = PIPE_BIND_SAMPLER_VIEW;
newtex = screen->resource_create(screen, &pt);
debug_assert(newtex);
u_sampler_view_default_template(&view_templ, newtex, newtex->format);
/* R, G, and B are treated as 1.0 for alpha-only formats in OpenVG */
if (newtex->format == PIPE_FORMAT_A8_UNORM) {
view_templ.swizzle_r = PIPE_SWIZZLE_ONE;
view_templ.swizzle_g = PIPE_SWIZZLE_ONE;
view_templ.swizzle_b = PIPE_SWIZZLE_ONE;
}
view = pipe->create_sampler_view(pipe, newtex, &view_templ);
/* want the texture to go away if the view is freed */
pipe_resource_reference(&newtex, NULL);
image->sampler_view = view;
vg_context_add_object(ctx, &image->base);
image_cleari(image, 0, 0, 0, image->width, image->height);
return image;
}
