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gui 引擎 font_freetype.c 代码功能优化；

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This commit is contained in:
yangfasheng 2018-01-02 11:44:11 +08:00
parent fd234eafdc
commit 2c145743cb
1 changed files with 41 additions and 33 deletions
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42
components/gui/src/font_freetype.c
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@ -393,7 +393,7 @@ static void _get_metrics(struct rtgui_ttf_font *ttf_font, const rt_uint16_t *tex
static void _draw_bitmap(struct rtgui_dc *dc, static void _draw_bitmap(struct rtgui_dc *dc,
FTC_SBit bitmap, FTC_SBit bitmap,
rt_int16_t ox, rt_int16_t btm_y, rt_int16_t ox, rt_int16_t btm_y,
rt_uint8_t a, rt_uint8_t r, rt_uint8_t g, rt_uint8_t b) rtgui_color_t fgc, rt_uint16_t right, rt_uint16_t bottom)
{ {
rt_int16_t x_start, y_start; rt_int16_t x_start, y_start;
struct rtgui_blit_info info = { 0 }; struct rtgui_blit_info info = { 0 };
@ -403,10 +403,12 @@ static void _draw_bitmap(struct rtgui_dc *dc,
x_start = ox + bitmap->left; x_start = ox + bitmap->left;
y_start = btm_y - bitmap->top; y_start = btm_y - bitmap->top;
info.a = a; PINFO(" draw bitmap (x, y) -> (%d, %d)\n", x_start, y_start);
info.r = r;
info.g = g; info.a = RTGUI_RGB_A(fgc);
info.b = b; info.r = RTGUI_RGB_R(fgc);
info.g = RTGUI_RGB_G(fgc);
info.b = RTGUI_RGB_B(fgc);
if (dc->type == RTGUI_DC_HW) if (dc->type == RTGUI_DC_HW)
{ {
@ -444,18 +446,22 @@ static void _draw_bitmap(struct rtgui_dc *dc,
} }
else if (dc->type == RTGUI_DC_BUFFER) else if (dc->type == RTGUI_DC_BUFFER)
{ {
int max_right, max_bottom;
dest_buf = (struct rtgui_dc_buffer*)dc; dest_buf = (struct rtgui_dc_buffer*)dc;
max_right = right > dest_buf->width ? dest_buf->width : right;
max_bottom = bottom > dest_buf->height ? dest_buf->height : bottom;
if (x_start + bitmap->width < 0 || y_start + bitmap->height < 0 if (x_start + bitmap->width < 0 || y_start + bitmap->height < 0
|| x_start > dest_buf->width || y_start > dest_buf->height) || x_start > max_right || y_start > max_bottom)
return; return;
/* blit source */ /* blit source */
info.src = (rt_uint8_t *)bitmap->buffer; info.src = (rt_uint8_t *)bitmap->buffer;
info.src = info.src + (y_start > 0 ? 0 : -y_start) * bitmap->width + (x_start > 0 ? 0 : -x_start); info.src = info.src + (y_start > 0 ? 0 : -y_start) * bitmap->width + (x_start > 0 ? 0 : -x_start);
info.src_fmt = RTGRAPHIC_PIXEL_FORMAT_ALPHA; info.src_fmt = RTGRAPHIC_PIXEL_FORMAT_ALPHA;
info.src_w = bitmap->width - (x_start > 0 ? 0 : -x_start) - (x_start + bitmap->width < dest_buf->width ? 0 : x_start + bitmap->width - dest_buf->width); info.src_w = bitmap->width - (x_start > 0 ? 0 : -x_start) - (x_start + bitmap->width < max_right ? 0 : x_start + bitmap->width - max_right);
info.src_h = bitmap->height - (y_start > 0 ? 0 : -y_start) - (y_start + bitmap->height < dest_buf->height ? 0 : y_start + bitmap->height - dest_buf->height); info.src_h = bitmap->height - (y_start > 0 ? 0 : -y_start) - (y_start + bitmap->height < max_bottom ? 0 : y_start + bitmap->height - max_bottom);
info.src_pitch = bitmap->width; info.src_pitch = bitmap->width;
info.src_skip = info.src_pitch - info.src_w; info.src_skip = info.src_pitch - info.src_w;
@ -473,7 +479,13 @@ static void _draw_bitmap(struct rtgui_dc *dc,
{ {
struct rtgui_rect text_rect; struct rtgui_rect text_rect;
struct rtgui_point dc_point = { 0, 0 }; struct rtgui_point dc_point = { 0, 0 };
struct rtgui_dc *text_dc = rtgui_dc_buffer_create_pixformat(RTGRAPHIC_PIXEL_FORMAT_ARGB888, bitmap->width, bitmap->height); struct rtgui_dc *text_dc;
if (x_start + bitmap->width < 0 || y_start + bitmap->height < 0
|| x_start > right || y_start > bottom)
return;
text_dc = rtgui_dc_buffer_create_pixformat(RTGRAPHIC_PIXEL_FORMAT_ARGB888, bitmap->width, bitmap->height);
if (text_dc) if (text_dc)
{ {
dest_buf = (struct rtgui_dc_buffer*)text_dc; dest_buf = (struct rtgui_dc_buffer*)text_dc;
@ -503,7 +515,7 @@ static void _draw_bitmap(struct rtgui_dc *dc,
text_rect.y1 = y_start; text_rect.y1 = y_start;
text_rect.y2 = text_rect.y1 + bitmap->height; text_rect.y2 = text_rect.y1 + bitmap->height;
rtgui_dc_buffer_set_alpha(text_dc, a); rtgui_dc_buffer_set_alpha(text_dc, RTGUI_RGB_A(fgc));
rtgui_dc_blit(text_dc, &dc_point, dc, &text_rect); rtgui_dc_blit(text_dc, &dc_point, dc, &text_rect);
rtgui_dc_destory(text_dc); rtgui_dc_destory(text_dc);
@ -515,7 +527,7 @@ static void _draw_text(struct rtgui_dc *dc,
struct rtgui_ttf_font *ttf_font, struct rtgui_ttf_font *ttf_font,
rt_uint16_t *text_short, rt_uint16_t *text_short,
rt_int16_t begin_x, rt_int16_t btm_y, rt_int16_t begin_x, rt_int16_t btm_y,
rt_uint8_t a, rt_uint8_t r, rt_uint8_t g, rt_uint8_t b) rtgui_color_t fgc, rt_uint16_t right, rt_uint16_t bottom)
{ {
int glyphIndex; int glyphIndex;
FTC_SBit ftcSBit = RT_NULL; FTC_SBit ftcSBit = RT_NULL;
@ -531,7 +543,7 @@ static void _draw_text(struct rtgui_dc *dc,
/* render font */ /* render font */
begin_x -= (ftcSBit->left - (abs(ftcSBit->left) + 2) / 2); begin_x -= (ftcSBit->left - (abs(ftcSBit->left) + 2) / 2);
_draw_bitmap(dc, ftcSBit, begin_x, btm_y, a, r, g, b); _draw_bitmap(dc, ftcSBit, begin_x, btm_y, fgc, right, bottom);
begin_x += ftcSBit->width + ftcSBit->left; begin_x += ftcSBit->width + ftcSBit->left;
@ -594,10 +606,6 @@ static void ftc_draw_text(struct rtgui_font *font,
#endif #endif
fgc = RTGUI_DC_FC(dc); fgc = RTGUI_DC_FC(dc);
a = RTGUI_RGB_A(fgc);
r = RTGUI_RGB_R(fgc);
g = RTGUI_RGB_G(fgc);
b = RTGUI_RGB_B(fgc);
/* text align */ /* text align */
_get_metrics(ttf_font, text_short, &text_rect); _get_metrics(ttf_font, text_short, &text_rect);
@ -633,7 +641,7 @@ static void ftc_draw_text(struct rtgui_font *font,
goto _out; goto _out;
} }
_draw_text(dc, ttf_font, text_short, begin_x, btm_y, a, r, g, b); _draw_text(dc, ttf_font, text_short, begin_x, btm_y, fgc, rect->x2, rect->y2);
_out: _out:
/* release unicode buffer */ /* release unicode buffer */