minui: Move GRSurface into a class.

This CL adds GRSurface::Create() and dtor for managing the allocated
memory in GRSurface class. It also adds GRSurface::data() that hides the
underlying implementation, with both of const and non-const overloads.
This allows `const GRSurface&` to be more useful - previously it only
ensured a const member variable of `data`, instead of a read-only buffer
it points to.

It also marks the parameters in gr_texticon() and gr_blit() as const, as
they're incoming source that shouldn't be altered. It corrects the type
of gr_draw, which is the sink to be painted on (an earlier attempt was
made in [1], but didn't get the full picture correctly).

[1] https://android-review.googlesource.com/c/platform/bootable/recovery/+/704757/

Test: mmma -j bootable/recovery
Test: recovery_unit_test on marlin
Test: Run graphics test on marlin (fbdev).
Test: Run graphics test on blueline (drm).
Change-Id: I7904df084cd6c08fa04a9da97d01b4b1a6e3a20c
This commit is contained in:
Tao Bao 2018-10-21 12:12:37 -07:00
parent 24ead5672b
commit 92bdb5a389
11 changed files with 190 additions and 115 deletions

View file

@ -40,7 +40,7 @@ static uint32_t gr_current = ~0;
static constexpr uint32_t alpha_mask = 0xff000000;
// gr_draw is owned by backends.
static const GRSurface* gr_draw = nullptr;
static GRSurface* gr_draw = nullptr;
static GRRotation rotation = GRRotation::NONE;
static PixelFormat pixel_format = PixelFormat::UNKNOWN;
@ -121,28 +121,29 @@ static void incr_y(uint32_t** p, int row_pixels) {
}
// Returns pixel pointer at given coordinates with rotation adjustment.
static uint32_t* pixel_at(const GRSurface* surf, int x, int y, int row_pixels) {
static uint32_t* PixelAt(GRSurface* surface, int x, int y, int row_pixels) {
switch (rotation) {
case GRRotation::NONE:
return reinterpret_cast<uint32_t*>(surf->data) + y * row_pixels + x;
return reinterpret_cast<uint32_t*>(surface->data()) + y * row_pixels + x;
case GRRotation::RIGHT:
return reinterpret_cast<uint32_t*>(surf->data) + x * row_pixels + (surf->width - y);
return reinterpret_cast<uint32_t*>(surface->data()) + x * row_pixels + (surface->width - y);
case GRRotation::DOWN:
return reinterpret_cast<uint32_t*>(surf->data) + (surf->height - 1 - y) * row_pixels +
(surf->width - 1 - x);
return reinterpret_cast<uint32_t*>(surface->data()) + (surface->height - 1 - y) * row_pixels +
(surface->width - 1 - x);
case GRRotation::LEFT:
return reinterpret_cast<uint32_t*>(surf->data) + (surf->height - 1 - x) * row_pixels + y;
return reinterpret_cast<uint32_t*>(surface->data()) + (surface->height - 1 - x) * row_pixels +
y;
default:
printf("invalid rotation %d", static_cast<int>(rotation));
}
return nullptr;
}
static void text_blend(uint8_t* src_p, int src_row_bytes, uint32_t* dst_p, int dst_row_pixels,
int width, int height) {
static void TextBlend(const uint8_t* src_p, int src_row_bytes, uint32_t* dst_p, int dst_row_pixels,
int width, int height) {
uint8_t alpha_current = static_cast<uint8_t>((alpha_mask & gr_current) >> 24);
for (int j = 0; j < height; ++j) {
uint8_t* sx = src_p;
const uint8_t* sx = src_p;
uint32_t* px = dst_p;
for (int i = 0; i < width; ++i, incr_x(&px, dst_row_pixels)) {
uint8_t a = *sx++;
@ -176,18 +177,18 @@ void gr_text(const GRFont* font, int x, int y, const char* s, bool bold) {
}
int row_pixels = gr_draw->row_bytes / gr_draw->pixel_bytes;
uint8_t* src_p = font->texture->data + ((ch - ' ') * font->char_width) +
(bold ? font->char_height * font->texture->row_bytes : 0);
uint32_t* dst_p = pixel_at(gr_draw, x, y, row_pixels);
const uint8_t* src_p = font->texture->data() + ((ch - ' ') * font->char_width) +
(bold ? font->char_height * font->texture->row_bytes : 0);
uint32_t* dst_p = PixelAt(gr_draw, x, y, row_pixels);
text_blend(src_p, font->texture->row_bytes, dst_p, row_pixels, font->char_width,
font->char_height);
TextBlend(src_p, font->texture->row_bytes, dst_p, row_pixels, font->char_width,
font->char_height);
x += font->char_width;
}
}
void gr_texticon(int x, int y, GRSurface* icon) {
void gr_texticon(int x, int y, const GRSurface* icon) {
if (icon == nullptr) return;
if (icon->pixel_bytes != 1) {
@ -201,10 +202,9 @@ void gr_texticon(int x, int y, GRSurface* icon) {
if (outside(x, y) || outside(x + icon->width - 1, y + icon->height - 1)) return;
int row_pixels = gr_draw->row_bytes / gr_draw->pixel_bytes;
uint8_t* src_p = icon->data;
uint32_t* dst_p = pixel_at(gr_draw, x, y, row_pixels);
text_blend(src_p, icon->row_bytes, dst_p, row_pixels, icon->width, icon->height);
const uint8_t* src_p = icon->data();
uint32_t* dst_p = PixelAt(gr_draw, x, y, row_pixels);
TextBlend(src_p, icon->row_bytes, dst_p, row_pixels, icon->width, icon->height);
}
void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a) {
@ -221,9 +221,9 @@ void gr_clear() {
(gr_current & 0xff) == ((gr_current >> 16) & 0xff) &&
(gr_current & 0xff) == ((gr_current >> 24) & 0xff) &&
gr_draw->row_bytes == gr_draw->width * gr_draw->pixel_bytes) {
memset(gr_draw->data, gr_current & 0xff, gr_draw->height * gr_draw->row_bytes);
memset(gr_draw->data(), gr_current & 0xff, gr_draw->height * gr_draw->row_bytes);
} else {
uint32_t* px = reinterpret_cast<uint32_t*>(gr_draw->data);
uint32_t* px = reinterpret_cast<uint32_t*>(gr_draw->data());
int row_diff = gr_draw->row_bytes / gr_draw->pixel_bytes - gr_draw->width;
for (int y = 0; y < gr_draw->height; ++y) {
for (int x = 0; x < gr_draw->width; ++x) {
@ -244,7 +244,7 @@ void gr_fill(int x1, int y1, int x2, int y2) {
if (outside(x1, y1) || outside(x2 - 1, y2 - 1)) return;
int row_pixels = gr_draw->row_bytes / gr_draw->pixel_bytes;
uint32_t* p = pixel_at(gr_draw, x1, y1, row_pixels);
uint32_t* p = PixelAt(gr_draw, x1, y1, row_pixels);
uint8_t alpha = static_cast<uint8_t>(((gr_current & alpha_mask) >> 24));
if (alpha > 0) {
for (int y = y1; y < y2; ++y) {
@ -258,7 +258,7 @@ void gr_fill(int x1, int y1, int x2, int y2) {
}
}
void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy) {
void gr_blit(const GRSurface* source, int sx, int sy, int w, int h, int dx, int dy) {
if (source == nullptr) return;
if (gr_draw->pixel_bytes != source->pixel_bytes) {
@ -274,11 +274,12 @@ void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy) {
if (rotation != GRRotation::NONE) {
int src_row_pixels = source->row_bytes / source->pixel_bytes;
int row_pixels = gr_draw->row_bytes / gr_draw->pixel_bytes;
uint32_t* src_py = reinterpret_cast<uint32_t*>(source->data) + sy * source->row_bytes / 4 + sx;
uint32_t* dst_py = pixel_at(gr_draw, dx, dy, row_pixels);
const uint32_t* src_py =
reinterpret_cast<const uint32_t*>(source->data()) + sy * source->row_bytes / 4 + sx;
uint32_t* dst_py = PixelAt(gr_draw, dx, dy, row_pixels);
for (int y = 0; y < h; y += 1) {
uint32_t* src_px = src_py;
const uint32_t* src_px = src_py;
uint32_t* dst_px = dst_py;
for (int x = 0; x < w; x += 1) {
*dst_px = *src_px++;
@ -288,8 +289,8 @@ void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy) {
incr_y(&dst_py, row_pixels);
}
} else {
unsigned char* src_p = source->data + sy * source->row_bytes + sx * source->pixel_bytes;
unsigned char* dst_p = gr_draw->data + dy * gr_draw->row_bytes + dx * gr_draw->pixel_bytes;
const uint8_t* src_p = source->data() + sy * source->row_bytes + sx * source->pixel_bytes;
uint8_t* dst_p = gr_draw->data() + dy * gr_draw->row_bytes + dx * gr_draw->pixel_bytes;
for (int i = 0; i < h; ++i) {
memcpy(dst_p, src_p, w * source->pixel_bytes);

View file

@ -45,14 +45,14 @@ int MinuiBackendAdf::SurfaceInit(const drm_mode_modeinfo* mode, GRSurfaceAdf* su
surf->row_bytes = surf->pitch;
surf->pixel_bytes = (format == DRM_FORMAT_RGB565) ? 2 : 4;
surf->data = static_cast<uint8_t*>(
mmap(nullptr, surf->pitch * surf->height, PROT_WRITE, MAP_SHARED, surf->fd, surf->offset));
if (surf->data == MAP_FAILED) {
auto mmapped =
mmap(nullptr, surf->pitch * surf->height, PROT_WRITE, MAP_SHARED, surf->fd, surf->offset);
if (mmapped == MAP_FAILED) {
int saved_errno = errno;
close(surf->fd);
return -saved_errno;
}
surf->mmapped_buffer_ = static_cast<uint8_t*>(mmapped);
return 0;
}
@ -185,7 +185,9 @@ void MinuiBackendAdf::Blank(bool blank) {
}
void MinuiBackendAdf::SurfaceDestroy(GRSurfaceAdf* surf) {
munmap(surf->data, surf->pitch * surf->height);
if (surf->mmapped_buffer_) {
munmap(surf->mmapped_buffer_, surf->pitch * surf->height);
}
close(surf->fence_fd);
close(surf->fd);
}

View file

@ -14,21 +14,30 @@
* limitations under the License.
*/
#ifndef _GRAPHICS_ADF_H_
#define _GRAPHICS_ADF_H_
#pragma once
#include <stdint.h>
#include <adf/adf.h>
#include "graphics.h"
#include "minui/minui.h"
class GRSurfaceAdf : public GRSurface {
public:
uint8_t* data() override {
return mmapped_buffer_;
}
private:
friend class MinuiBackendAdf;
int fence_fd;
int fd;
__u32 offset;
__u32 pitch;
friend class MinuiBackendAdf;
uint8_t* mmapped_buffer_{ nullptr };
};
class MinuiBackendAdf : public MinuiBackend {
@ -54,5 +63,3 @@ class MinuiBackendAdf : public MinuiBackend {
unsigned int n_surfaces;
GRSurfaceAdf surfaces[2];
};
#endif // _GRAPHICS_ADF_H_

View file

@ -70,8 +70,8 @@ void MinuiBackendDrm::Blank(bool blank) {
void MinuiBackendDrm::DrmDestroySurface(GRSurfaceDrm* surface) {
if (!surface) return;
if (surface->data) {
munmap(surface->data, surface->row_bytes * surface->height);
if (surface->mmapped_buffer_) {
munmap(surface->mmapped_buffer_, surface->row_bytes * surface->height);
}
if (surface->fb_id) {
@ -172,15 +172,14 @@ GRSurfaceDrm* MinuiBackendDrm::DrmCreateSurface(int width, int height) {
surface->width = width;
surface->row_bytes = create_dumb.pitch;
surface->pixel_bytes = create_dumb.bpp / 8;
surface->data = static_cast<unsigned char*>(mmap(nullptr, surface->height * surface->row_bytes,
PROT_READ | PROT_WRITE, MAP_SHARED, drm_fd,
map_dumb.offset));
if (surface->data == MAP_FAILED) {
auto mmapped = mmap(nullptr, surface->height * surface->row_bytes, PROT_READ | PROT_WRITE,
MAP_SHARED, drm_fd, map_dumb.offset);
if (mmapped == MAP_FAILED) {
perror("mmap() failed");
DrmDestroySurface(surface);
return nullptr;
}
surface->mmapped_buffer_ = static_cast<uint8_t*>(mmapped);
return surface;
}

View file

@ -14,8 +14,7 @@
* limitations under the License.
*/
#ifndef _GRAPHICS_DRM_H_
#define _GRAPHICS_DRM_H_
#pragma once
#include <stdint.h>
@ -25,11 +24,17 @@
#include "minui/minui.h"
class GRSurfaceDrm : public GRSurface {
public:
uint8_t* data() override {
return mmapped_buffer_;
}
private:
friend class MinuiBackendDrm;
uint32_t fb_id;
uint32_t handle;
friend class MinuiBackendDrm;
uint8_t* mmapped_buffer_{ nullptr };
};
class MinuiBackendDrm : public MinuiBackend {
@ -54,5 +59,3 @@ class MinuiBackendDrm : public MinuiBackend {
drmModeConnector* main_monitor_connector;
int drm_fd;
};
#endif // _GRAPHICS_DRM_H_

View file

@ -100,16 +100,16 @@ GRSurface* MinuiBackendFbdev::Init() {
gr_framebuffer[0].height = vi.yres;
gr_framebuffer[0].row_bytes = fi.line_length;
gr_framebuffer[0].pixel_bytes = vi.bits_per_pixel / 8;
gr_framebuffer[0].data = static_cast<uint8_t*>(bits);
memset(gr_framebuffer[0].data, 0, gr_framebuffer[0].height * gr_framebuffer[0].row_bytes);
gr_framebuffer[0].buffer_ = static_cast<uint8_t*>(bits);
memset(gr_framebuffer[0].buffer_, 0, gr_framebuffer[0].height * gr_framebuffer[0].row_bytes);
/* check if we can use double buffering */
if (vi.yres * fi.line_length * 2 <= fi.smem_len) {
double_buffered = true;
memcpy(gr_framebuffer + 1, gr_framebuffer, sizeof(GRSurface));
gr_framebuffer[1].data =
gr_framebuffer[0].data + gr_framebuffer[0].height * gr_framebuffer[0].row_bytes;
gr_framebuffer[1] = gr_framebuffer[0];
gr_framebuffer[1].buffer_ =
gr_framebuffer[0].buffer_ + gr_framebuffer[0].height * gr_framebuffer[0].row_bytes;
gr_draw = gr_framebuffer + 1;
@ -120,16 +120,12 @@ GRSurface* MinuiBackendFbdev::Init() {
// draw in, and then "flipping" the buffer consists of a
// memcpy from the buffer we allocated to the framebuffer.
gr_draw = static_cast<GRSurface*>(malloc(sizeof(GRSurface)));
memcpy(gr_draw, gr_framebuffer, sizeof(GRSurface));
gr_draw->data = static_cast<unsigned char*>(malloc(gr_draw->height * gr_draw->row_bytes));
if (!gr_draw->data) {
perror("failed to allocate in-memory surface");
return nullptr;
}
gr_draw = new GRSurfaceFbdev;
*gr_draw = gr_framebuffer[0];
gr_draw->buffer_ = new uint8_t[gr_draw->height * gr_draw->row_bytes];
}
memset(gr_draw->data, 0, gr_draw->height * gr_draw->row_bytes);
memset(gr_draw->buffer_, 0, gr_draw->height * gr_draw->row_bytes);
fb_fd = fd;
SetDisplayedFramebuffer(0);
@ -150,7 +146,7 @@ GRSurface* MinuiBackendFbdev::Flip() {
SetDisplayedFramebuffer(1 - displayed_buffer);
} else {
// Copy from the in-memory surface to the framebuffer.
memcpy(gr_framebuffer[0].data, gr_draw->data, gr_draw->height * gr_draw->row_bytes);
memcpy(gr_framebuffer[0].buffer_, gr_draw->buffer_, gr_draw->height * gr_draw->row_bytes);
}
return gr_draw;
}
@ -160,8 +156,8 @@ MinuiBackendFbdev::~MinuiBackendFbdev() {
fb_fd = -1;
if (!double_buffered && gr_draw) {
free(gr_draw->data);
free(gr_draw);
delete[] gr_draw->buffer_;
delete gr_draw;
}
gr_draw = nullptr;
}

View file

@ -14,14 +14,27 @@
* limitations under the License.
*/
#ifndef _GRAPHICS_FBDEV_H_
#define _GRAPHICS_FBDEV_H_
#pragma once
#include <linux/fb.h>
#include <stdint.h>
#include "graphics.h"
#include "minui/minui.h"
class GRSurfaceFbdev : public GRSurface {
public:
uint8_t* data() override {
return buffer_;
}
private:
friend class MinuiBackendFbdev;
// Points to the start of the buffer: either the mmap'd framebuffer or one allocated in-memory.
uint8_t* buffer_;
};
class MinuiBackendFbdev : public MinuiBackend {
public:
GRSurface* Init() override;
@ -33,12 +46,10 @@ class MinuiBackendFbdev : public MinuiBackend {
private:
void SetDisplayedFramebuffer(unsigned n);
GRSurface gr_framebuffer[2];
GRSurfaceFbdev gr_framebuffer[2];
bool double_buffered;
GRSurface* gr_draw;
GRSurfaceFbdev* gr_draw;
int displayed_buffer;
fb_var_screeninfo vi;
int fb_fd;
};
#endif // _GRAPHICS_FBDEV_H_

View file

@ -14,12 +14,13 @@
* limitations under the License.
*/
#ifndef _MINUI_H_
#define _MINUI_H_
#pragma once
#include <stdint.h>
#include <sys/types.h>
#include <functional>
#include <memory>
#include <string>
#include <vector>
@ -27,12 +28,31 @@
// Graphics.
//
struct GRSurface {
class GRSurface {
public:
GRSurface() = default;
virtual ~GRSurface();
// Creates and returns a GRSurface instance for the given data_size. The starting address of the
// surface data is aligned to SURFACE_DATA_ALIGNMENT. Returns the created GRSurface instance (in
// std::unique_ptr), or nullptr on error.
static std::unique_ptr<GRSurface> Create(size_t data_size);
virtual uint8_t* data() {
return data_;
}
const uint8_t* data() const {
return const_cast<const uint8_t*>(const_cast<GRSurface*>(this)->data());
}
int width;
int height;
int row_bytes;
int pixel_bytes;
unsigned char* data;
private:
uint8_t* data_{ nullptr };
};
struct GRFont {
@ -75,7 +95,7 @@ void gr_clear();
void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
void gr_fill(int x1, int y1, int x2, int y2);
void gr_texticon(int x, int y, GRSurface* icon);
void gr_texticon(int x, int y, const GRSurface* icon);
const GRFont* gr_sys_font();
int gr_init_font(const char* name, GRFont** dest);
@ -85,7 +105,7 @@ int gr_measure(const GRFont* font, const char* s);
// Returns -1 if font is nullptr.
int gr_font_size(const GRFont* font, int* x, int* y);
void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy);
void gr_blit(const GRSurface* source, int sx, int sy, int w, int h, int dx, int dy);
unsigned int gr_get_width(const GRSurface* surface);
unsigned int gr_get_height(const GRSurface* surface);
@ -165,5 +185,3 @@ std::vector<std::string> get_locales_in_png(const std::string& png_name);
// Free a surface allocated by any of the res_create_*_surface()
// functions.
void res_free_surface(GRSurface* surface);
#endif

View file

@ -37,18 +37,23 @@
#include "minui/minui.h"
#define SURFACE_DATA_ALIGNMENT 8
static std::string g_resource_dir{ "/res/images" };
static GRSurface* malloc_surface(size_t data_size) {
size_t size = sizeof(GRSurface) + data_size + SURFACE_DATA_ALIGNMENT;
unsigned char* temp = static_cast<unsigned char*>(malloc(size));
if (temp == NULL) return NULL;
GRSurface* surface = reinterpret_cast<GRSurface*>(temp);
surface->data = temp + sizeof(GRSurface) +
(SURFACE_DATA_ALIGNMENT - (sizeof(GRSurface) % SURFACE_DATA_ALIGNMENT));
return surface;
std::unique_ptr<GRSurface> GRSurface::Create(size_t data_size) {
static constexpr size_t kSurfaceDataAlignment = 8;
std::unique_ptr<GRSurface> result = std::make_unique<GRSurface>();
size_t aligned_size =
(data_size + kSurfaceDataAlignment - 1) / kSurfaceDataAlignment * kSurfaceDataAlignment;
result->data_ = static_cast<uint8_t*>(aligned_alloc(kSurfaceDataAlignment, aligned_size));
if (result->data_ == nullptr) return nullptr;
return result;
}
GRSurface::~GRSurface() {
if (data_ != nullptr) {
free(data_);
data_ = nullptr;
}
}
PngHandler::PngHandler(const std::string& name) {
@ -133,18 +138,18 @@ PngHandler::~PngHandler() {
// framebuffer pixel format; they need to be modified if the
// framebuffer format changes (but nothing else should).
// Allocate and return a GRSurface* sufficient for storing an image of
// the indicated size in the framebuffer pixel format.
static GRSurface* init_display_surface(png_uint_32 width, png_uint_32 height) {
GRSurface* surface = malloc_surface(width * height * 4);
if (surface == NULL) return NULL;
// Allocates and returns a GRSurface* sufficient for storing an image of the indicated size in the
// framebuffer pixel format.
static std::unique_ptr<GRSurface> init_display_surface(png_uint_32 width, png_uint_32 height) {
std::unique_ptr<GRSurface> surface = GRSurface::Create(width * height * 4);
if (!surface) return nullptr;
surface->width = width;
surface->height = height;
surface->row_bytes = width * 4;
surface->pixel_bytes = 4;
surface->width = width;
surface->height = height;
surface->row_bytes = width * 4;
surface->pixel_bytes = 4;
return surface;
return surface;
}
// Copy 'input_row' to 'output_row', transforming it to the
@ -202,7 +207,7 @@ int res_create_display_surface(const char* name, GRSurface** pSurface) {
png_uint_32 width = png_handler.width();
png_uint_32 height = png_handler.height();
GRSurface* surface = init_display_surface(width, height);
std::unique_ptr<GRSurface> surface = init_display_surface(width, height);
if (!surface) {
return -8;
}
@ -215,11 +220,11 @@ int res_create_display_surface(const char* name, GRSurface** pSurface) {
for (png_uint_32 y = 0; y < height; ++y) {
std::vector<unsigned char> p_row(width * 4);
png_read_row(png_ptr, p_row.data(), nullptr);
transform_rgb_to_draw(p_row.data(), surface->data + y * surface->row_bytes,
transform_rgb_to_draw(p_row.data(), surface->data() + y * surface->row_bytes,
png_handler.channels(), width);
}
*pSurface = surface;
*pSurface = surface.release();
return 0;
}
@ -272,11 +277,12 @@ int res_create_multi_display_surface(const char* name, int* frames, int* fps,
goto exit;
}
for (int i = 0; i < *frames; ++i) {
surface[i] = init_display_surface(width, height / *frames);
if (!surface[i]) {
auto created_surface = init_display_surface(width, height / *frames);
if (!created_surface) {
result = -8;
goto exit;
}
surface[i] = created_surface.release();
}
if (gr_pixel_format() == PixelFormat::ABGR || gr_pixel_format() == PixelFormat::BGRA) {
@ -287,7 +293,7 @@ int res_create_multi_display_surface(const char* name, int* frames, int* fps,
std::vector<unsigned char> p_row(width * 4);
png_read_row(png_ptr, p_row.data(), nullptr);
int frame = y % *frames;
unsigned char* out_row = surface[frame]->data + (y / *frames) * surface[frame]->row_bytes;
unsigned char* out_row = surface[frame]->data() + (y / *frames) * surface[frame]->row_bytes;
transform_rgb_to_draw(p_row.data(), out_row, png_handler.channels(), width);
}
@ -319,7 +325,7 @@ int res_create_alpha_surface(const char* name, GRSurface** pSurface) {
png_uint_32 width = png_handler.width();
png_uint_32 height = png_handler.height();
GRSurface* surface = malloc_surface(width * height);
std::unique_ptr<GRSurface> surface = GRSurface::Create(width * height);
if (!surface) {
return -8;
}
@ -334,11 +340,11 @@ int res_create_alpha_surface(const char* name, GRSurface** pSurface) {
}
for (png_uint_32 y = 0; y < height; ++y) {
unsigned char* p_row = surface->data + y * surface->row_bytes;
unsigned char* p_row = surface->data() + y * surface->row_bytes;
png_read_row(png_ptr, p_row, nullptr);
}
*pSurface = surface;
*pSurface = surface.release();
return 0;
}
@ -429,7 +435,7 @@ int res_create_localized_alpha_surface(const char* name,
if (y + 1 + h >= height || matches_locale(loc, locale)) {
printf(" %20s: %s (%d x %d @ %d)\n", name, loc, w, h, y);
GRSurface* surface = malloc_surface(w * h);
std::unique_ptr<GRSurface> surface = GRSurface::Create(w * h);
if (!surface) {
return -8;
}
@ -440,10 +446,10 @@ int res_create_localized_alpha_surface(const char* name,
for (int i = 0; i < h; ++i, ++y) {
png_read_row(png_ptr, row.data(), nullptr);
memcpy(surface->data + i * w, row.data(), w);
memcpy(surface->data() + i * w, row.data(), w);
}
*pSurface = surface;
*pSurface = surface.release();
break;
}

View file

@ -29,7 +29,7 @@
#include "ui.h"
// From minui/minui.h.
struct GRSurface;
class GRSurface;
enum class UIElement {
HEADER,

32
tests/unit/minui_test.cpp Normal file
View file

@ -0,0 +1,32 @@
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <memory>
#include <gtest/gtest.h>
#include "minui/minui.h"
TEST(GRSurfaceTest, Create_aligned) {
static constexpr size_t kSurfaceDataAlignment = 8;
for (size_t data_size = 100; data_size < 128; data_size++) {
std::unique_ptr<GRSurface> surface(GRSurface::Create(data_size));
ASSERT_TRUE(surface);
ASSERT_EQ(0, reinterpret_cast<uintptr_t>(surface->data()) % kSurfaceDataAlignment);
}
}