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exynos: font: use restrict for src/dst in put_glyph_rgba4444

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This should help the compiler to generate better code for
memory access.
This commit is contained in:
Tobias Jakobi 2014-08-09 00:19:19 +02:00
parent e8439c30ff
commit 34e1b6921f
1 changed files with 5 additions and 6 deletions
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11
gfx/exynos_gfx.c
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@ -373,16 +373,15 @@ static int clear_buffer(struct g2d_context *g2d, struct g2d_image *img) {
}
/* Put a font glyph at a position in the buffer that is backing the G2D font image object. */
static void put_glyph_rgba4444(struct exynos_data *pdata, const uint8_t *src, uint16_t color,
unsigned g_width, unsigned g_height, unsigned g_pitch,
unsigned dst_x, unsigned dst_y) {
static void put_glyph_rgba4444(struct exynos_data *pdata, const uint8_t *__restrict__ src,
uint16_t color, unsigned g_width, unsigned g_height,
unsigned g_pitch, unsigned dst_x, unsigned dst_y) {
const enum exynos_image_type buf_type = defaults[exynos_image_font].buf_type;
const unsigned buf_width = pdata->src[exynos_image_font]->width;
unsigned x, y;
uint16_t *dst;
dst = (uint16_t*)pdata->buf[buf_type]->vaddr + dst_y * buf_width + dst_x;
uint16_t *__restrict__ dst = (uint16_t*)pdata->buf[buf_type]->vaddr +
dst_y * buf_width + dst_x;
for (y = 0; y < g_height; ++y, src += g_pitch, dst += buf_width) {
for (x = 0; x < g_width; ++x) {