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(PSP) fix occasional screen flickering.

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This commit is contained in:
aliaspider 2014-07-15 06:54:45 +01:00
parent 6c5ba417a2
commit b045a48025
1 changed files with 9 additions and 5 deletions
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14
psp1/psp1_video.c
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@ -141,14 +141,18 @@ static void *psp_init(const video_info_t *video,
psp->vp.full_width = SCEGU_SCR_WIDTH;
psp->vp.full_height = SCEGU_SCR_HEIGHT;
psp->main_dList = memalign(16, 256); // make sure to allocate more space if bigger display lists are needed.
psp->frame_dList = memalign(16, 256);
psp->menu.dList = memalign(16, 256);
// make sure anything using uncached pointers reserves whole cachelines (memory address and size need to be a multiple of 64)
// so it isn't overwritten by an unlucky cache writeback.
// this includes display lists since the Gu library uses unchached pointers to write to them.
psp->main_dList = memalign(64, 256); // allocate more space if bigger display lists are needed.
psp->frame_dList = memalign(64, 256);
psp->menu.dList = memalign(64, 256);
psp->menu.frame = memalign(16, 2 * 480 * 272);
psp->frame_coords = memalign(64, 1 * sizeof(psp1_sprite_t));
psp->frame_coords = memalign(64, 16 * sizeof(psp1_sprite_t));
psp->menu.frame_coords = memalign(64, 16 * sizeof(psp1_sprite_t));
memset(psp->frame_coords , 0, 1 * sizeof(psp1_sprite_t));
memset(psp->frame_coords , 0, 16 * sizeof(psp1_sprite_t));
memset(psp->menu.frame_coords , 0, 16 * sizeof(psp1_sprite_t));
sceKernelDcacheWritebackInvalidateAll();
psp->frame_coords = TO_UNCACHED_PTR(psp->frame_coords);