class DebugFont

class DebugFont

Defined at line 17 of file ../../src/ui/lib/escher/debug/debug_font.h

This is a monospaced bitmap font renderer that blits to the output image for

maximal performance.

Public Members

static const uint32_t kGlyphWidth
static const uint32_t kGlyphHeight
static const uint32_t kGlyphPadding
static const uint32_t kNumGlyphs

Public Methods

std::unique_ptr<DebugFont> New (BatchGpuUploader * uploader, ImageFactory * factory)

Defined at line 17 of file ../../src/ui/lib/escher/debug/debug_font.cc

std::unique_ptr<uint8_t[]> GetFontPixels ()

Return RGBA pixels containing a monospace bitmap ASCII font. Each glyph is

7x7 pixels (including 1 pixel of padding around each edge of the glyph).

The glyphs are packed in a single column with total dimensions 7x1792.

Defined at line 69 of file ../../src/ui/lib/escher/debug/debug_font.cc

void Blit (CommandBuffer * cb, const std::string & text, const ImagePtr & output_image, vk::Offset2D target_offset, int32_t scale)

Blit the specified text into |output_image|. |target_offset| is the

top-left corner of the display region. |scale| is an integer multiplier

that scales the width and height of each displayed glyph. The caller is

responsible for setting memory barriers; |output_image| must have layout

vk::ImageLayout::eTransferDstOptimal before Blit() is called.

Defined at line 27 of file ../../src/ui/lib/escher/debug/debug_font.cc