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copybit_c2d: Disable blend during blit

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When performing the copybit blit operation, do a blind blit of the
surfaces. The blending operation should be done when the stretch operation
is invoked.
This commit is contained in:
Naomi Luis 2011-03-24 18:25:46 -07:00 committed by Govind Surti
parent 8818296680
commit 9ff34af7fa
1 changed files with 30 additions and 14 deletions
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44
libcopybit/copybit_c2d.cpp
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@ -710,13 +710,14 @@ static int is_alpha(int cformat)
}
/** do a stretch blit type operation */
static int stretch_copybit(
static int stretch_copybit_internal(
struct copybit_device_t *dev,
struct copybit_image_t const *dst,
struct copybit_image_t const *src,
struct copybit_rect_t const *dst_rect,
struct copybit_rect_t const *src_rect,
struct copybit_region_t const *region)
struct copybit_region_t const *region,
bool enableBlend)
{
struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
int status = COPYBIT_SUCCESS;
@ -770,19 +771,23 @@ static int stretch_copybit(
return COPYBIT_FAILURE;
}
if(ctx->blitState.config_mask & C2D_GLOBAL_ALPHA_BIT) {
ctx->blitState.config_mask &= ~C2D_ALPHA_BLEND_NONE;
if(!(ctx->blitState.global_alpha)) {
// src alpha is zero
unset_image(ctx->g12_device_fd, ctx->src[surface_index], src, src_mapped);
unset_image(ctx->g12_device_fd, ctx->dst, dst, trg_mapped);
return status;
if (enableBlend) {
if(ctx->blitState.config_mask & C2D_GLOBAL_ALPHA_BIT) {
ctx->blitState.config_mask &= ~C2D_ALPHA_BLEND_NONE;
if(!(ctx->blitState.global_alpha)) {
// src alpha is zero
unset_image(ctx->g12_device_fd, ctx->src[surface_index], src, src_mapped);
unset_image(ctx->g12_device_fd, ctx->dst, dst, trg_mapped);
return status;
}
} else {
if(is_alpha(cformat))
ctx->blitState.config_mask &= ~C2D_ALPHA_BLEND_NONE;
else
ctx->blitState.config_mask |= C2D_ALPHA_BLEND_NONE;
}
} else {
if(is_alpha(cformat))
ctx->blitState.config_mask &= ~C2D_ALPHA_BLEND_NONE;
else
ctx->blitState.config_mask |= C2D_ALPHA_BLEND_NONE;
ctx->blitState.config_mask |= C2D_ALPHA_BLEND_NONE;
}
ctx->blitState.surface_id = ctx->src[surface_index];
@ -813,6 +818,17 @@ static int stretch_copybit(
return status;
}
static int stretch_copybit(
struct copybit_device_t *dev,
struct copybit_image_t const *dst,
struct copybit_image_t const *src,
struct copybit_rect_t const *dst_rect,
struct copybit_rect_t const *src_rect,
struct copybit_region_t const *region)
{
return stretch_copybit_internal(dev, dst, src, dst_rect, src_rect, region, true);
}
/** Perform a blit type operation */
static int blit_copybit(
struct copybit_device_t *dev,
@ -822,7 +838,7 @@ static int blit_copybit(
{
struct copybit_rect_t dr = { 0, 0, dst->w, dst->h };
struct copybit_rect_t sr = { 0, 0, src->w, src->h };
return stretch_copybit(dev, dst, src, &dr, &sr, region);
return stretch_copybit_internal(dev, dst, src, &dr, &sr, region, false);
}
/*****************************************************************************/