ipu3: Change Macro migrated from Chrome OS to its std version accordingly

Change the Macro STDCOPY, MEMCPY_S and CLEAR to its std version to better
suit the style. The patch also fix misusage of STDCOPY as memcpy, which
leads to copying overflown in PA and SA results.

Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

2 files changed, 58 insertions, 83 deletions

diff --git a/aiq/aiq_input_parameters.cpp b/aiq/aiq_input_parameters.cpp
index 56301f6..8a53849 100644
--- a/aiq/aiq_input_parameters.cpp
+++ b/aiq/aiq_input_parameters.cpp
@@ -14,11 +14,6 @@
 
 #include <libcamera/base/log.h>
 
-/* Macros used by imported code */
-#define STDCOPY(dst, src, size) std::copy((src), ((src) + (size)), (dst))
-#define MEMCPY_S(dest, dmax, src, smax) memcpy((dest), (src), std::min((size_t)(dmax), (size_t)(smax)))
-#define CLEAR(x) memset(&(x), 0, sizeof(x))
-
 namespace libcamera {
 
 LOG_DEFINE_CATEGORY(AIQInputParameters)
@@ -27,26 +22,26 @@ namespace ipa::ipu3::aiq {
 
 void AiqInputParameters::init()
 {
-	CLEAR(aeInputParams);
-	CLEAR(afParams);
-	CLEAR(afBracketParams);
-	CLEAR(awbParams);
-	CLEAR(gbceParams);
-	CLEAR(paParams);
-	CLEAR(saParams);
-	CLEAR(sensorDescriptor);
-	CLEAR(exposureWindow);
-	CLEAR(exposureCoordinate);
-	CLEAR(aeFeatures);
-	CLEAR(aeManualLimits);
-	CLEAR(manualFocusParams);
-	CLEAR(focusRect);
-	CLEAR(manualCctRange);
-	CLEAR(manualWhiteCoordinate);
-	CLEAR(awbResults);
-	CLEAR(colorGains);
-	CLEAR(exposureParams);
-	CLEAR(sensorFrameParams);
+	aeInputParams = {};
+	afParams = {};
+	afBracketParams = {};
+	awbParams = {};
+	gbceParams = {};
+	paParams = {};
+	saParams = {};
+	sensorDescriptor = {};
+	exposureWindow = {};
+	exposureCoordinate = {};
+	aeFeatures = {};
+	aeManualLimits = {};
+	manualFocusParams = {};
+	focusRect = {};
+	manualCctRange = {};
+	manualWhiteCoordinate = {};
+	awbResults = {};
+	colorGains = {};
+	exposureParams = {};
+	sensorFrameParams = {};
 	aeLock = false;
 	awbLock = false;
 	blackLevelLock = false;
@@ -102,10 +97,7 @@ AiqInputParameters &AiqInputParameters::operator=(const AiqInputParameters &othe
 	if (this == &other)
 		return *this;
 
-	MEMCPY_S(this,
-		 sizeof(AiqInputParameters),
-		 &other,
-		 sizeof(AiqInputParameters));
+	memcpy(this, &other, sizeof(AiqInputParameters));
 	reset();
 
 	/* Exposure coordinate is nullptr in other than SPOT mode. */
diff --git a/aiq/aiq_results.cpp b/aiq/aiq_results.cpp
index 9dda17c..f727f36 100644
--- a/aiq/aiq_results.cpp
+++ b/aiq/aiq_results.cpp
@@ -14,9 +14,6 @@
 
 #include <libcamera/base/log.h>
 
-/* Macros used by imported code */
-#define STDCOPY(dst, src, size) std::copy((src), ((src) + (size)), (dst))
-
 namespace libcamera {
 
 LOG_DEFINE_CATEGORY(AIQResults)
@@ -111,17 +108,14 @@ void AiqResults::setAe(ia_aiq_ae_results *ae)
 					    ae->weight_grid->height;
 		gridElements = std::clamp<unsigned int>(gridElements, 1, MAX_AE_GRID_SIZE);
 
-		STDCOPY(ae_.weight_grid->weights,
-			ae->weight_grid->weights,
-			gridElements * sizeof(char));
+		std::copy_n(ae->weight_grid->weights, gridElements, ae_.weight_grid->weights);
 	} else {
 		LOG(AIQResults, Error) << "Not copying AE Weight Grids";
 	}
 
 	// Copy the flash info structure
 	if (ae_.flashes && ae->flashes) {
-		STDCOPY((int8_t *)ae_.flashes, (int8_t *)ae->flashes,
-			NUM_FLASH_LEDS * sizeof(ia_aiq_flash_parameters));
+		std::copy_n(ae->flashes, NUM_FLASH_LEDS, ae_.flashes);
 	} else {
 		LOG(AIQResults, Error) << "Not copying AE Flashes";
 	}
@@ -172,20 +166,16 @@ void AiqResults::setGbce(ia_aiq_gbce_results *gbce)
 
 		gbce_.gamma_lut_size = gbce->gamma_lut_size;
 
-		STDCOPY((int8_t *)gbce_.r_gamma_lut, (int8_t *)gbce->r_gamma_lut,
-			gbce->gamma_lut_size * sizeof(float));
-		STDCOPY((int8_t *)gbce_.b_gamma_lut, (int8_t *)gbce->b_gamma_lut,
-			gbce->gamma_lut_size * sizeof(float));
-		STDCOPY((int8_t *)gbce_.g_gamma_lut, (int8_t *)gbce->g_gamma_lut,
-			gbce->gamma_lut_size * sizeof(float));
+		std::copy_n(gbce->r_gamma_lut, gbce->gamma_lut_size, gbce_.r_gamma_lut);
+		std::copy_n(gbce->b_gamma_lut, gbce->gamma_lut_size, gbce_.b_gamma_lut);
+		std::copy_n(gbce->g_gamma_lut, gbce->gamma_lut_size, gbce_.g_gamma_lut);
 	} else {
 		LOG(AIQResults, Error) << "Not copying Gamma LUT channels";
 	}
 
 	if (gbce->tone_map_lut_size > 0) {
 		gbce_.tone_map_lut_size = gbce->tone_map_lut_size;
-		STDCOPY((int8_t *)gbce_.tone_map_lut, (int8_t *)gbce->tone_map_lut,
-			gbce->tone_map_lut_size * sizeof(float));
+		std::copy_n(gbce->tone_map_lut, gbce->tone_map_lut_size, gbce_.tone_map_lut);
 	} else {
 		LOG(AIQResults, Error) << "Not copying Tone Mapping Gain LUT";
 	}
@@ -200,20 +190,20 @@ void AiqResults::setPa(ia_aiq_pa_results *pa)
 {
 	ASSERT(pa);
 
-	STDCOPY(&pa_.color_conversion_matrix[0][0], &pa->color_conversion_matrix[0][0],
-		MAX_COLOR_CONVERSION_MATRIX * MAX_COLOR_CONVERSION_MATRIX *
-			sizeof(pa->color_conversion_matrix[0][0]));
+	std::copy_n(&pa->color_conversion_matrix[0][0],
+			MAX_COLOR_CONVERSION_MATRIX * MAX_COLOR_CONVERSION_MATRIX,
+			&pa_.color_conversion_matrix[0][0]);
 
 	if (pa_.preferred_acm && pa->preferred_acm) {
 		pa_.preferred_acm->sector_count = pa->preferred_acm->sector_count;
 
-		STDCOPY(pa_.preferred_acm->hue_of_sectors,
-			pa->preferred_acm->hue_of_sectors,
-			sizeof(*pa->preferred_acm->hue_of_sectors) * pa->preferred_acm->sector_count);
+		std::copy_n(pa->preferred_acm->hue_of_sectors,
+			pa->preferred_acm->sector_count,
+			pa_.preferred_acm->hue_of_sectors);
 
-		STDCOPY(pa_.preferred_acm->advanced_color_conversion_matrices[0][0],
-			pa->preferred_acm->advanced_color_conversion_matrices[0][0],
-			sizeof(*pa->preferred_acm->advanced_color_conversion_matrices) * pa->preferred_acm->sector_count);
+		std::copy_n(pa->preferred_acm->advanced_color_conversion_matrices[0][0],
+			pa->preferred_acm->sector_count,
+			pa_.preferred_acm->advanced_color_conversion_matrices[0][0]);
 	} else {
 		LOG(AIQResults, Error) << "Not copying PA hue of sectors";
 	}
@@ -222,17 +212,17 @@ void AiqResults::setPa(ia_aiq_pa_results *pa)
 		pa_.ir_weight->height = pa->ir_weight->height;
 		pa_.ir_weight->width = pa->ir_weight->width;
 
-		STDCOPY(pa_.ir_weight->ir_weight_grid_R,
-			pa->ir_weight->ir_weight_grid_R,
-			sizeof(*pa->ir_weight->ir_weight_grid_R) * pa->ir_weight->height * pa->ir_weight->width);
+		std::copy_n(pa->ir_weight->ir_weight_grid_R,
+			pa->ir_weight->height * pa->ir_weight->width,
+			pa_.ir_weight->ir_weight_grid_R);
 
-		STDCOPY(pa_.ir_weight->ir_weight_grid_G,
-			pa->ir_weight->ir_weight_grid_G,
-			sizeof(*pa->ir_weight->ir_weight_grid_G) * pa->ir_weight->height * pa->ir_weight->width);
+		std::copy_n(pa->ir_weight->ir_weight_grid_G,
+			pa->ir_weight->height * pa->ir_weight->width,
+			pa_.ir_weight->ir_weight_grid_G);
 
-		STDCOPY(pa_.ir_weight->ir_weight_grid_B,
-			pa->ir_weight->ir_weight_grid_B,
-			sizeof(*pa->ir_weight->ir_weight_grid_B) * pa->ir_weight->height * pa->ir_weight->width);
+		std::copy_n(pa->ir_weight->ir_weight_grid_B,
+			pa->ir_weight->height * pa->ir_weight->width,
+			pa_.ir_weight->ir_weight_grid_B);
 	} else {
 		LOG(AIQResults, Error) << "Not copying IR weight";
 	}
@@ -253,13 +243,13 @@ void AiqResults::setSa(ia_aiq_sa_results *sa)
 	sa_.height = sa->height;
 	sa_.lsc_update = sa->lsc_update;
 
+	uint32_t lscGridSize = sa_.width * sa_.height;
 	/* Check against one of the vectors but resize applicable to all. */
-	if (channelGr_.size() < (sa_.width * sa_.height)) {
-		int lscNewSize = sa_.width * sa_.height;
-		channelGr_.resize(lscNewSize);
-		channelGb_.resize(lscNewSize);
-		channelR_.resize(lscNewSize);
-		channelB_.resize(lscNewSize);
+	if (channelGr_.size() < lscGridSize) {
+		channelGr_.resize(lscGridSize);
+		channelGb_.resize(lscGridSize);
+		channelR_.resize(lscGridSize);
+		channelB_.resize(lscGridSize);
 
 		/* Update the SA data pointers to new memory locations. */
 		sa_.channel_gr = channelGr_.data();
@@ -269,23 +259,16 @@ void AiqResults::setSa(ia_aiq_sa_results *sa)
 	}
 
 	if (sa->lsc_update) {
-		uint32_t memCopySize = sa->width * sa->height * sizeof(float);
-
-		STDCOPY((int8_t *)sa_.channel_gr, (int8_t *)sa->channel_gb,
-			memCopySize);
-		STDCOPY((int8_t *)sa_.channel_gb, (int8_t *)sa->channel_gr,
-			memCopySize);
-		STDCOPY((int8_t *)sa_.channel_r, (int8_t *)sa->channel_r,
-			memCopySize);
-		STDCOPY((int8_t *)sa_.channel_b, (int8_t *)sa->channel_b,
-			memCopySize);
+		std::copy_n(sa->channel_gr, lscGridSize, sa_.channel_gr);
+		std::copy_n(sa->channel_gb, lscGridSize, sa_.channel_gb);
+		std::copy_n(sa->channel_r, lscGridSize, sa_.channel_r);
+		std::copy_n(sa->channel_b, lscGridSize, sa_.channel_b);
 	} else {
-		LOG(AIQResults, Error) << "Not copying LSC tables.";
+		LOG(AIQResults, Debug) << "Not copying LSC tables.";
 	}
 
-	STDCOPY(&sa_.light_source[0],
-		&sa->light_source[0],
-		CMC_NUM_LIGHTSOURCES * sizeof(sa->light_source[0]));
+	std::copy_n(&sa->light_source[0], CMC_NUM_LIGHTSOURCES, &sa_.light_source[0]);
+
 	sa_.scene_difficulty = sa->scene_difficulty;
 	sa_.num_patches = sa->num_patches;
 	sa_.covered_area = sa->covered_area;